Appendix - Research Topics
The following research topics are available.
| Code | Topic |
|---|---|
| 309018 | 19th Century |
| 1016011 | 3-D Printers |
| 414505 | Abnormal Psychology |
| 401005 | Aboriginal Studies |
| 755055 | Abortion |
| 406004 | Abortion Counseling |
| 605010 | Absorption |
| 503001 | Academic Achievement |
| 1103002 | Academic Libraries |
| 715005 | Accidents |
| 901001 | Accounting |
| 1007011 | Acid Rain |
| 1009020 | Acoustic Damping Mechanisms |
| 1013041 | Acoustic Reverberation |
| 1016010 | Acoustic Target Detection |
| 1016020 | Acoustic Tomography |
| 607025 | Acoustic Waves |
| 1013001 | Acoustics |
| 1016015 | Acoustics Technology |
| 715599 | Acquired Immunodeficiency Syndrome USE: AIDS |
| 901058 | Acquisitions & Mergers |
| 1220005 | Actinide Chemistry |
| 417039 | Activists or Activism |
| 607599 | Actuators USE: Electric Switches |
| 735021 | Adaptive Technology |
| 735022 | Adaptive Technology Development |
| 404001 | Addictions |
| 1009025 | Adhesives |
| 414028 | Adjustment Psychology |
| 801001 | Administrative Law |
| 710005 | Adolescent Health |
| 403040 | Adolescent Parenting |
| 414030 | Adolescent Psychology |
| 414070 | Adolescent Sexual Behavior |
| 403001 | Adolescents |
| 404025 | Adoption |
| 1003005 | Adsorption |
| 505001 | Adult and Continuing Education |
| 404060 | Adult Day Care |
| 505599 | Adult Development USE: Professional Development |
| 403019 | Adults |
| 1009021 | Advanced Materials |
| 715006 | Adverse Effects |
| 901002 | Advertising |
| 409009 | Aerial Geography |
| 613000 | Aerial Photography USE: Photogrammetry |
| 1015110 | Aerial Reconnaissance |
| 1016025 | Aerodynamic Technology |
| 601001 | Aerodynamics |
| 601002 | Aeroelasticity |
| 601003 | Aeromechanics |
| 601000 | Aeronautical or Astronautical Engineering |
| 601007 | Aeronautical or Astronautical Materials |
| 1015001 | Aeronautics |
| 1001014 | Aeronomy |
| 1016035 | Aerospace Electronics |
| 1015113 | Aerospace Engineering |
| 1015115 | Aerospace Environments |
| 785005 | Aerospace Medicine |
| 1015125 | Aerospace Navigation |
| 1015976 | Aerospace Personnel Equipment |
| 1015117 | Aerospace Safety |
| 1016030 | Aerospace Technology |
| 317001 | Aesthetics |
| 503002 | Affective Development |
| 715500 | Affective Disorders |
| 112001 | Afghanistan |
| 101000 | Africa |
| 101001 | Africa, Central |
| 101002 | Africa, Eastern |
| 101003 | Africa, Northern |
| 101004 | Africa, Southern |
| 101006 | Africa, Sub-Sahara |
| 101005 | Africa, Western |
| 403038 | African American Studies |
| 403022 | African Americans |
| 303009 | African Art |
| 309016 | African History |
| 312016 | African Languages or Literature |
| 403059 | African Studies |
| 113018 | African Union |
| 113014 | African, Caribbean and Pacific Group of States (ACP) |
| 303010 | African-American Art |
| 755060 | Agent or Drug Screening |
| 404503 | Aggression |
| 775001 | Aging |
| 201503 | Agribusiness |
| 201101 | Agricultural Biotechnology |
| 201001 | Agricultural Chemistry |
| 201002 | Agricultural Collectives or Cooperatives |
| 201003 | Agricultural Commodities |
| 201022 | Agricultural Conservation |
| 408001 | Agricultural Economics |
| 201004 | Agricultural Engineering |
| 201005 | Agricultural Finance |
| 409011 | Agricultural Geography |
| 309042 | Agricultural History |
| 801002 | Agricultural Law |
| 201006 | Agricultural Management |
| 201040 | Agricultural Marketing |
| 201007 | Agricultural Planning or Policy |
| 201080 | Agricultural Products, Physical Properties |
| 201085 | Agricultural Products, Transport or Handling |
| 201060 | Agricultural Waste Management |
| 201000 | Agriculture |
| 200000 | Agriculture and Food Sciences |
| 502001 | Agriculture Education |
| 201100 | Agriculture or Food Studies - Developing Countries |
| 201008 | Agronomy |
| 715008 | AIDS |
| 715263 | AIDS (Mental Health) |
| 715264 | AIDS (Perinatal or Pediatric) |
| 715265 | AIDS (Sexually Transmitted) |
| 715266 | AIDS (Substance Abuse) |
| 406006 | AIDS Counseling |
| 745504 | AIDS Therapy |
| 1005001 | Air - Sea Boundary Interactions |
| 1015120 | Air Breathing Engines |
| 1007005 | Air Pollution |
| 1007512 | Air Quality |
| 419001 | Air Safety |
| 419005 | Air Transportation Industry |
| 1016299 | Aircraft Avionics USE: Aerospace Electronics |
| 1016040 | Aircraft Propulsion Technology |
| 1015130 | Airfoil |
| 1016045 | Airframe Design |
| 601004 | Airframe Structures and Materials |
| 606070 | Airport Runway |
| 114001 | Alaska |
| 403053 | Alaskan Natives |
| 112002 | Albania |
| 502002 | Alcohol Education |
| 1265005 | Alcohol Fuels |
| 404003 | Alcohol or Alcoholism |
| 203002 | Alcoholic Beverages |
| 745076 | Alcoholism Prevention |
| 745077 | Alcoholism Treatment |
| 1010001 | Algebra |
| 112003 | Algeria |
| 1010500 | Algorithms |
| 417009 | Alienation |
| 1003045 | Aliphatic Compounds |
| 785010 | Allergies |
| 502040 | Allied Health Education |
| 785065 | Allied Health Occupations |
| 503003 | Alternative Education |
| 1205005 | Alternative Energy Sources |
| 730001 | Alternative Medicine |
| 1001060 | Altimetry |
| 1015140 | Aluminum Compounds |
| 715232 | Alzheimers Disease |
| 730002 | Ambulatory Care |
| 303011 | American Art |
| 309043 | American History |
| 312124 | American Literature |
| 316011 | American Music |
| 112189 | American Republics |
| 312136 | American Sign Language |
| 403041 | American Studies |
| 765022 | Amino Acid Metabolism |
| 1003050 | Amino Acids |
| 755005 | Amniocentesis |
| 1009006 | Amorphous Materials |
| 1015145 | Amplitude Distribution Analysis |
| 715252 | Amyotrophic Lateral Sclerosis |
| 1004090 | Analog Computers or Computing |
| 1010002 | Analysis and Functional Analysis |
| 1003008 | Analytical Chemistry |
| 414001 | Analytical Psychology |
| 1215005 | Analytical Techniques |
| 705000 | Anatomical Systems or Sites |
| 1002001 | Anatomy |
| 309001 | Ancient History |
| 112190 | Andes |
| 112205 | Andorra |
| 1002516 | Andrology |
| 715009 | Anemia |
| 785015 | Anesthesiology |
| 765003 | Angiogenesis |
| 706005 | Angiography |
| 755500 | Angioplasty |
| 112004 | Angola |
| 201009 | Animal Behavior or Ethology |
| 201012 | Animal Communication |
| 1002052 | Animal Development |
| 201013 | Animal Diseases or Pathology |
| 201014 | Animal Drugs |
| 201065 | Animal Ecology |
| 201599 | Animal Feeds USE: Animal Nutrition |
| 201016 | Animal Genetics or Breeding |
| 1215019 | Animal Genome |
| 201110 | Animal Growth |
| 201017 | Animal Housing |
| 201011 | Animal Husbandry |
| 201501 | Animal Models |
| 201015 | Animal Nutrition |
| 201018 | Animal Physiology or Morphology |
| 414598 | Animal Psychology USE: Comparative Psychology |
| 201102 | Animal Reproduction |
| 1014003 | Animal Research Policy |
| 201019 | Animal Science |
| 1002063 | Animal Taxonomy |
| 201504 | Animal Transport |
| 201020 | Animal Waste |
| 201506 | Animal Welfare |
| 1009170 | Anisotropic Materials |
| 715236 | Anorexia or Bulimia |
| 110001 | Antarctic Ocean |
| 102000 | Antarctica |
| 607026 | Antennae |
| 607061 | Antennae and Wave Guides |
| 401000 | Anthropology |
| 401016 | Anthropometry |
| 740005 | Antibiotics |
| 760556 | Antibodies |
| 740010 | Anticonvulsants |
| 1015150 | Antiferroelectricity |
| 760006 | Antigens |
| 109018 | Antigua and Barbuda |
| 740087 | Antimicrobial Agents |
| 740089 | Antineoplastic Agents |
| 740090 | Antioxidants |
| 740006 | Antiretroviral Drugs |
| 740011 | Antisera |
| 1016050 | Antisubmarine Technology |
| 1015155 | Antisubmarine Warfare |
| 801026 | Antitrust Laws |
| 740012 | Antiviral Drugs |
| 715501 | Anxiety Disorders |
| 765501 | Apoptosis |
| 1003508 | Applied Chemistry |
| 408035 | Applied Economics |
| 607001 | Applied Electronics |
| 410015 | Applied Linguistics |
| 1010003 | Applied Mathematics |
| 1013085 | Applied Physics |
| 414002 | Applied Psychology |
| 1014005 | Applied Sciences |
| 417001 | Applied Sociology |
| 1010501 | Applied Statistics |
| 607027 | Applied Ultrasonics |
| 1015160 | Approach |
| 1015165 | Approach Control |
| 1016001 | Appropriate Technology |
| 201075 | Aquacultural Engineering |
| 201066 | Aquaculture or Hydroponics |
| 1002194 | Aquariums |
| 113001 | Arab States |
| 110018 | Arabian Gulf |
| 103001 | Arabian Peninsula |
| 312018 | Arabic Language or Literature |
| 901074 | Arbitration |
| 201105 | Arboriculture |
| 402001 | Archaeological Conservation |
| 402000 | Archaeology |
| 402002 | Archaeometry |
| 307020 | Architectural Design |
| 606001 | Architectural Engineering |
| 319003 | Architectural Restoration or Preservation |
| 307001 | Architecture |
| 307021 | Architecture History |
| 319002 | Archival Preservation |
| 1103020 | Archival Program |
| 111001 | Arctic |
| 1008015 | Arctic Meteorology |
| 110002 | Arctic Ocean |
| 1008020 | Arctic Sciences |
| 100000 | Area Studies |
| 302000 | Area Studies (Arts or Humanities) |
| 112005 | Argentina |
| 112169 | Armenia |
| 1009168 | Armor or Protective Materials |
| 1105001 | Arms Control |
| 1003043 | Aromatic Compounds |
| 502003 | Art Education |
| 415015 | Art or Music Therapy |
| 319001 | Art Preservation |
| 715225 | Arteriosclerosis |
| 715010 | Arthritis |
| 740035 | Artificial Heart |
| 1004015 | Artificial Intelligence or Cybernetics |
| 740088 | Artificial Joints |
| 740040 | Artificial Kidney |
| 740045 | Artificial Limbs |
| 740185 | Artificial Organs |
| 1015175 | Artificial Radiation Belts |
| 1015170 | Artificial Satellites |
| 303001 | Arts Administration |
| 303000 | Arts and Culture |
| 300000 | Arts and Humanities |
| 305001 | Arts Criticism |
| 502502 | Arts Education |
| 303013 | Arts Funding |
| 303014 | Arts Planning or Policy |
| 725038 | Asbestos |
| 103000 | Asia |
| 103002 | Asia, Central |
| 103003 | Asia, East (Far East) |
| 103005 | Asia, Northern |
| 103006 | Asia, Southeast |
| 103007 | Asia, Southern |
| 103008 | Asia, Western |
| 403045 | Asian Americans |
| 303020 | Asian Art |
| 309017 | Asian History |
| 312020 | Asian Languages or Literature |
| 403054 | Asian or Pacific Islanders |
| 318040 | Asian Religions |
| 403060 | Asian Studies |
| 417011 | Assimilation |
| 715013 | Asthma |
| 1002114 | Astrobiology USE: Exobiology |
| 1015180 | Astrodynamics |
| 1015185 | Astronaut Maneuvering Equipment |
| 1015002 | Astronautics |
| 1015885 | Astronautics Risk |
| 1015999 | Astronavigation USE: Celestial Navigation |
| 1015190 | Astronomical Satellites |
| 1013002 | Astronomy |
| 1013003 | Astrophysics |
| 1004054 | Asynchronous Transfer Mode (ATM) |
| 715253 | Ataxia |
| 110003 | Atlantic Ocean |
| 1001002 | Atmosphere: Composition and Disturbance |
| 1007038 | Atmospheric Aerosols |
| 1001010 | Atmospheric Analysis |
| 1015200 | Atmospheric Attenuation |
| 1001055 | Atmospheric Chemistry |
| 1230020 | Atmospheric Ecology |
| 1015205 | Atmospheric Models |
| 1001056 | Atmospheric Physics |
| 1015210 | Atmospheric Radiation |
| 1001057 | Atmospheric Remote Sensing |
| 1001000 | Atmospheric Sciences |
| 1001058 | Atmospheric Structure and Dynamics |
| 1013045 | Atom Interferometry |
| 1003001 | Atomic and Molecular Structure |
| 1013514 | Atomic Force Microscopy |
| 1013019 | Atomic Physics |
| 1013051 | Atomic Spectroscopy |
| 403050 | At-Risk Children or Youth |
| 1016055 | Attack-Class Submarine |
| 715014 | Attention Deficit Disorder |
| 312129 | Audience Development in Literature |
| 785020 | Audiology |
| 503023 | Audiovisual Materials |
| 901003 | Auditing |
| 1004051 | Augmented Reality |
| 1015215 | Auroras |
| 106001 | Australasia |
| 112006 | Australia |
| 112007 | Austria |
| 715256 | Autism |
| 715015 | Autoimmunity |
| 1010027 | Automata |
| 735005 | Automated Clinical Analysis |
| 609001 | Automation |
| 417015 | Automation and Industrial Workers |
| 609002 | Automotive Engineering |
| 1205000 | Automotive Propulsion Systems |
| 609039 | Autonomous Vehicles |
| 1015220 | Auxiliary Power Sources |
| 1270115 | Auxiliary Reactors |
| 1016060 | Aviation Technology |
| 112192 | Azerbaijan |
| 109002 | Azores |
| 1015225 | Background Noise |
| 1015230 | Background Radiation |
| 760001 | Bacteria |
| 715511 | Bacterial Infections |
| 1002003 | Bacteriology |
| 112008 | Bahamas |
| 112009 | Bahrain |
| 203001 | Baked Goods |
| 775002 | Balance (physical) |
| 1104028 | Ballistics |
| 312022 | Baltic Languages or Literature |
| 110004 | Baltic Sea |
| 112170 | Baltic States |
| 112010 | Bangladesh |
| 901005 | Banking |
| 801003 | Banking Law |
| 901006 | Bankruptcy |
| 112191 | Barbados |
| 1015235 | Barrier Layers |
| 502004 | Basic Skills Education |
| 1008008 | Bathymetry |
| 1255003 | Batteries |
| 1104029 | Battlefield Command and Control |
| 1015240 | Beams (Radiation) |
| 110019 | Beaufort Sea |
| 406015 | Behavior Modification |
| 1215015 | Behavioral Biology |
| 413012 | Behavioral Ecology |
| 715020 | Behavioral Medicine |
| 414015 | Behavioral or Experimental Psychology |
| 404000 | Behavioral or Social Studies |
| 715503 | Behavioral Pharmacology |
| 715096 | Behavioral Problems or Disorders |
| 502060 | Behavioral Science Education |
| 745001 | Behavioral Therapy |
| 112171 | Belarus |
| 112011 | Belgium |
| 417012 | Belief or Knowledge Systems |
| 112012 | Belize |
| 1015245 | Beneficiation |
| 112013 | Benin |
| 110005 | Bering Sea |
| 109003 | Bermuda |
| 112014 | Bhutan |
| 318041 | Biblical Studies |
| 1103021 | Bibliographic Project |
| 1004060 | Big Data |
| 503004 | Bilingual or Bicultural Education |
| 755010 | Bioassay |
| 755501 | Bioavailability |
| 710013 | Biochemical Engineering |
| 1002599 | Biochemical Genetics USE: Molecular Genetics |
| 760002 | Biochemical Markers |
| 1003002 | Biochemistry |
| 1003015 | Biochemistry, Carbohydrates |
| 1003016 | Biochemistry, Lipids |
| 1003017 | Biochemistry, Nucleic Acids |
| 1003018 | Biochemistry, Proteins |
| 1002517 | Bioclimatology |
| 1008025 | Biocorrosion |
| 1002048 | Biodegradation |
| 1015250 | Biodynamics |
| 706010 | Bioelectric Phenomena |
| 1013501 | Bioelectromagnetics |
| 765005 | Bioenergetics |
| 710015 | Bioengineering |
| 317003 | Bioethics |
| 740013 | Biofeedback |
| 1002092 | Biofilms |
| 1008030 | Biofouling |
| 1002500 | Biogeochemistry |
| 1002501 | Biogeography |
| 312013 | Biography and Autobiography |
| 1002518 | Biohydrology |
| 710139 | Bioinformatics |
| 1003513 | Bioinorganic Chemistry |
| 735500 | Bioinstrumentation |
| 1002542 | Biological Adaptation |
| 1002014 | Biological Diversity |
| 201073 | Biological Engineering |
| 1002024 | Biological Instrumentation |
| 760003 | Biological Markers |
| 1215010 | Biological Materials |
| 1002071 | Biological Modeling |
| 1008005 | Biological Oceanography |
| 1016008 | Biological or Chemical Agent Detection or Protection Technology |
| 1104001 | Biological or Chemical Warfare |
| 1002075 | Biological Polymers |
| 1002519 | Biological Reserve Design |
| 780005 | Biological Resources |
| 740015 | Biological Response Modifiers |
| 1002000 | Biological Sciences |
| 1002552 | Bioluminescence |
| 1003024 | Biomarkers |
| 1265010 | Biomass Fuels |
| 710020 | Biomechanics |
| 706000 | Biomedical Engineering |
| 1014500 | Biomedical Ethics |
| 750005 | Biomedical Materials |
| 710030 | Biomedical Research (Multidisciplinary) |
| 780000 | Biomedical Research Resources |
| 780010 | Biomedical Research Resources, Other |
| 720005 | Biomedical Research Training |
| 1002012 | Biometry |
| 1002520 | Biomimetics |
| 710101 | Biopharmaceutics |
| 1003500 | Biophysical Chemistry |
| 1008035 | Biophysical Interactions |
| 1013004 | Biophysics |
| 1009030 | Biopolymeric Materials |
| 1002503 | Bioprocessing |
| 710509 | Bioreactors |
| 1007028 | Bioremediation |
| 1002078 | Biosensors |
| 1002193 | Biosphere |
| 1002504 | Biostatistics |
| 1005052 | Biostratigraphy |
| 765010 | Biosynthesis |
| 710033 | Biosystematics |
| 710035 | Biotechnology |
| 745002 | Biotherapy |
| 1002175 | Biotic System |
| 715598 | Bipolar Disorder USE: Affective Disorders |
| 715030 | Birth or Congenital Defects |
| 110006 | Black Sea |
| 1015255 | Blackout Physiology |
| 1015260 | Blackout Propagation |
| 403002 | Blacks |
| 715031 | Bladder Cancer |
| 715227 | Blindness |
| 1002090 | Blood Coagulation |
| 715032 | Blood Diseases |
| 710500 | Blood Flow |
| 750010 | Blood or Blood Products or Transfusions |
| 710501 | Blood-Brain Barrier |
| 1002556 | Bodily Secretions |
| 710502 | Body Composition |
| 112015 | Bolivia |
| 705004 | Bone |
| 715034 | Bone Cancer |
| 715270 | Bone Diseases |
| 705005 | Bone Marrow |
| 755502 | Bone Marrow Transplantation |
| 1015265 | Booster Rocket Engines |
| 801032 | Border Patrol |
| 1007556 | Boreal Ecosystems |
| 112172 | Bosnia and Herzegovina |
| 1002013 | Botany |
| 112016 | Botswana |
| 1015275 | Boundary Layer Control |
| 1015270 | Boundary Layers |
| 705010 | Brain |
| 715037 | Brain Cancer |
| 710503 | Brain Development |
| 715512 | Brain Disorders |
| 710504 | Brain Injury |
| 715255 | Brain Tumors |
| 1015280 | Brakes For Arresting Motion |
| 112017 | Brazil |
| 715276 | Breast Cancer |
| 730003 | Breast Feeding |
| 715023 | Breast Health |
| 740086 | Breast Implants |
| 750015 | Breast Milk |
| 775010 | Breastfeeding & Lactation |
| 1016213 | Breath Facilitating Devices |
| 606060 | Bridge Management Systems |
| 606051 | Bridges |
| 132027 | British & Irish Literature |
| 113002 | British Commonwealth of Nations |
| 309044 | British History |
| 104001 | British Isles |
| 1015285 | Broadband |
| 405001 | Broadcast Media |
| 112168 | Brunei |
| 318043 | Buddhism |
| 606018 | Building Infrastructure |
| 112018 | Bulgaria |
| 312120 | Bulgarian Language or Literature |
| 404032 | Bullying |
| 112160 | Burkina Faso |
| 1015290 | Burning Rate |
| 414036 | Burnout |
| 715033 | Burns |
| 112020 | Burundi |
| 901095 | Business |
| 901007 | Business Administration |
| 901008 | Business Communications |
| 408020 | Business Cycle or Crises |
| 502005 | Business Education |
| 901009 | Business Ethics |
| 309083 | Business History |
| 801004 | Business or Corporate Law |
| 901096 | Business Planning or Policy |
| 901501 | Business Process Reengineering |
| 901044 | Business Statistics |
| 901011 | Business Technology |
| 900000 | Business, Management and Commerce |
| 309002 | Byzantine History |
| 1015295 | Cabin Atmospheres |
| 203004 | Cacao Products |
| 404504 | Caffeine |
| 1010004 | Calculus |
| 112072 | Cambodia |
| 1016071 | Camera Phones |
| 112021 | Cameroon |
| 112022 | Canada |
| 403058 | Canadian Studies |
| 109004 | Canary Islands |
| 710137 | Cancer Biology |
| 1002543 | Cancer Genetics |
| 715035 | Cancer or Carcinogenesis |
| 745500 | Cancer Prevention |
| 203005 | Candy |
| 201107 | Canine Diseases or Pathology |
| 607066 | Capacitors |
| 112023 | Cape Verde |
| 407017 | Capital Punishment |
| 412500 | Capitalism |
| 1003040 | Carbohydrates |
| 1009035 | Carbon Composites |
| 1015300 | Carbon Compounds |
| 1005053 | Carbon Cycle |
| 1260005 | Carbon Dioxide |
| 1002081 | Carbon Dioxide Fixation |
| 1003027 | Carbon Dioxide Reduction |
| 1007035 | Carbon Sequestration |
| 715597 | Cardiac Diseases USE: Heart Diseases |
| 1015305 | Cardiography |
| 785025 | Cardiology |
| 735501 | Cardiomyopathy |
| 785228 | Cardiopulmonary Chest Medicine |
| 710140 | Cardiovascular Biology |
| 715040 | Cardiovascular Disease |
| 710505 | Cardiovascular Physiology |
| 705015 | Cardiovascular System |
| 502006 | Career Education and Planning |
| 730004 | Caregivers |
| 109017 | Caribbean Islands |
| 312504 | Caribbean Language or Literature |
| 110007 | Caribbean Sea |
| 409001 | Cartography |
| 1103001 | Cataloging and Classification |
| 1003501 | Catecholamines |
| 1004169 | CD-ROM |
| 1015310 | Celestial Geodesy |
| 1013005 | Celestial Mechanics |
| 1015325 | Celestial Navigation |
| 1015330 | Celestial Reference Systems |
| 1002004 | Cell Biology |
| 1002049 | Cell Cloning |
| 760004 | Cell Components |
| 755503 | Cell Culture |
| 760500 | Cell Cycle |
| 765599 | Cell Death USE: Apoptosis |
| 1002072 | Cell Differentiation |
| 765598 | Cell Division USE: Mitosis |
| 765500 | Cell Growth |
| 1002074 | Cell Interactions |
| 780015 | Cell Lines |
| 1002183 | Cell Physiology |
| 745506 | Cell Transplantation |
| 785500 | Cellular Immunology |
| 1016072 | Cellular Telephones |
| 309058 | Celtic Studies |
| 606052 | Cement and Concrete Chemistry |
| 404509 | Censorship |
| 112024 | Central African Republic |
| 107001 | Central America |
| 320001 | Ceramic Arts |
| 604000 | Ceramic Engineering |
| 1009001 | Ceramic Materials |
| 203006 | Cereals |
| 705502 | Cerebellum |
| 705501 | Cerebral Cortex |
| 715257 | Cerebral Palsy |
| 715042 | Cerebrovascular Disorders |
| 715038 | Cervical Cancer |
| 112025 | Chad |
| 316012 | Chamber Music |
| 1015335 | Change Detection |
| 1010030 | Chaos |
| 312500 | Chaucer |
| 1003026 | Chemical Analysis USE: Analytical Chemistry |
| 710506 | Chemical Carcinogenesis |
| 1003003 | Chemical Dynamics |
| 1003004 | Chemical Effects |
| 605000 | Chemical Engineering |
| 1003502 | Chemical Kinetics |
| 1013020 | Chemical Physics |
| 1003053 | Chemical Reactions |
| 1003000 | Chemical Sciences |
| 1003006 | Chemical Synthesis |
| 1016061 | Chemical Technology |
| 1230010 | Chemical Transport |
| 1003503 | Chemical Vapor Deposition |
| 780017 | Chemicals - Materials |
| 1003060 | Chemicals and Chemical Properties |
| 1230005 | Chemicals Monitoring |
| 1003029 | Chemistry USE: Chemical Sciences |
| 745003 | Chemoprevention |
| 740018 | Chemopreventive Agents |
| 740020 | Chemotherapeutic Agents |
| 745005 | Chemotherapy |
| 403046 | Chicanos |
| 403051 | Child Abuse & Neglect |
| 403500 | Child Care |
| 1002559 | Child Development |
| 404511 | Child Labor |
| 715239 | Child or Adolescent Mental Health |
| 730005 | Child or Maternal Health |
| 715504 | Child Psychiatry |
| 404004 | Child Psychology |
| 403052 | Child Support |
| 403003 | Child Welfare |
| 403049 | Children & Youth |
| 770005 | Children (Patients) |
| 304010 | Children's Literature |
| 112026 | Chile |
| 112027 | China |
| 110008 | China Seas |
| 312024 | Chinese Language or Literature |
| 785030 | Chiropractic |
| 760501 | Cholesterol |
| 316013 | Choral Music |
| 316010 | Choreography |
| 318044 | Christianity |
| 1003035 | Chromatography |
| 760599 | Chromosome Mapping USE: Gene Mapping |
| 715043 | Chronic Fatigue Syndrome |
| 715062 | Chronic Illnesses |
| 715505 | Chronic Pain |
| 1002176 | Circadian Rhythms |
| 1015340 | Circuit Protection |
| 607028 | Circuits and Systems |
| 607067 | Circuits Theory or Architecture |
| 412014 | Citizenship |
| 203030 | Citrus Fruits |
| 419002 | Civic Activities |
| 412035 | Civics or Civics Education |
| 606000 | Civil Engineering |
| 801005 | Civil Law |
| 412001 | Civil or Human Rights |
| 412018 | Civil Service |
| 312002 | Classical Greek Language or Literature |
| 312003 | Classical Latin Language or Literature |
| 316020 | Classical Music |
| 312001 | Classical or Ancient Language or Literature |
| 1001016 | Classification of Climate |
| 503005 | Classroom Instruction |
| 1005051 | Clay Mineralogy |
| 1016009 | Clean Technology |
| 1001001 | Climate Change |
| 1001003 | Climatology |
| 710040 | Clinical Chemistry |
| 706020 | Clinical Engineering |
| 785035 | Clinical Medicine |
| 414004 | Clinical Psychology |
| 710031 | Clinical Research or Studies |
| 417013 | Clinical Sociology |
| 755015 | Clinical Trials |
| 1004050 | Cloud Computing |
| 1001018 | Cloud Physics |
| 1001004 | Clouds |
| 1260090 | Coal |
| 1260015 | Coal Carbonization |
| 1220010 | Coal Chemistry |
| 1260055 | Coal Combustion |
| 1260020 | Coal Desulfurization |
| 1260025 | Coal Gasification |
| 1260030 | Coal Hydrogenation |
| 1260035 | Coal Liquefaction |
| 1260010 | Coal Processing |
| 1260045 | Coal Processing, Solvent Extraction |
| 1260040 | Coal Pyrolysis |
| 606002 | Coastal and Ocean Engineering |
| 1005006 | Coastal Geology |
| 1008040 | Coastal Meteorology |
| 1008001 | Coastal Processes |
| 1007515 | Coastal Zone Management |
| 404500 | Cocaine |
| 740030 | Cochlear Implants |
| 203007 | Coffee |
| 414005 | Cognitive Development or Processes |
| 414503 | Cognitive or Behavioral Models |
| 414500 | Cognitive Psychology |
| 414003 | Cognitive Science |
| 1015350 | Coherent Radiation |
| 755019 | Cohort Analysis |
| 760005 | Collagen |
| 901500 | Collective Bargaining |
| 417027 | Collective Behavior |
| 505002 | College Students |
| 1015355 | Collision Avoidance Systems |
| 1003009 | Colloid Chemistry |
| 112028 | Colombia |
| 203008 | Color Additives |
| 715538 | Colorectal Cancer |
| 730092 | Combat Medical Care |
| 1104019 | Combat Rations |
| 1010020 | Combinatorics |
| 1009160 | Combustible Materials |
| 609003 | Combustion |
| 1220015 | Combustion Chemistry |
| 1015365 | Cometary Magnetospheres |
| 1015370 | Comets |
| 1015375 | Command Guidance |
| 901010 | Commerce |
| 1255005 | Commercial Energy Use |
| 901032 | Commercialization |
| 201021 | Commodity Futures |
| 113016 | Commonwealth of Independent States (CIS) |
| 715045 | Communicable Diseases |
| 801006 | Communication Law |
| 405000 | Communications |
| 607002 | Communications Systems |
| 1016007 | Communications Technology |
| 1104020 | Communications Warfare |
| 501008 | Community and School Relations |
| 505005 | Community Colleges |
| 416018 | Community Development or Revitalization |
| 413014 | Community Ecology |
| 730008 | Community Health |
| 403004 | Community or Outreach Programs |
| 416019 | Community Services |
| 403042 | Community Studies |
| 715024 | Comorbidity |
| 112029 | Comoros |
| 503006 | Comparative Education |
| 412007 | Comparative Government or Politics |
| 801500 | Comparative Law |
| 312004 | Comparative Literature |
| 414062 | Comparative Psychology |
| 318042 | Comparative Religion |
| 417002 | Comparative Sociology |
| 507001 | Compensatory Education |
| 1004037 | Compilers |
| 760507 | Complementary DNA |
| 1009007 | Composite Materials |
| 201507 | Compost |
| 414038 | Compulsive Behavior |
| 1002521 | Computational Biology |
| 1003034 | Computational Chemistry |
| 601013 | Computational Fluid Dynamics |
| 410002 | Computational Linguistics |
| 1010026 | Computational Mathematics |
| 609055 | Computational Mechanics |
| 1002523 | Computational Neuroscience |
| 1013502 | Computational Physics |
| 609500 | Computed Tomography |
| 1106002 | Computer & Video Games |
| 1004002 | Computer Aided Design--CAD |
| 1004502 | Computer Aided Manufacturing--CAM |
| 1004065 | Computer Algorithms |
| 1004034 | Computer Animation |
| 1004001 | Computer Applications |
| 1004030 | Computer Architecture |
| 307009 | Computer Arts |
| 503007 | Computer Assisted Instruction--CAI |
| 1004005 | Computer Display Technology |
| 502041 | Computer Education or Literacy |
| 1004003 | Computer Engineering |
| 1004040 | Computer File Organization |
| 1004004 | Computer Graphics |
| 1004165 | Computer Hardware |
| 1004026 | Computer Interface |
| 1004168 | Computer Modeling |
| 315002 | Computer Music |
| 1004085 | Computer Operating Systems |
| 1004501 | Computer or Technical Support |
| 1004006 | Computer Programming |
| 1004000 | Computer Science |
| 1004032 | Computer Security |
| 1004043 | Computer Simulation or Modeling |
| 1004008 | Computer Storage and Retrieval |
| 1004011 | Computer Systems Administration |
| 1004009 | Computer Systems Analysis |
| 735020 | Computer Technology (medical) |
| 1004010 | Computer Theory |
| 1004072 | Computer Vision |
| 780040 | Computing Resources |
| 606004 | Concrete Structure |
| 1013006 | Condensed Matter |
| 1250500 | Condensed Matter Physics |
| 404028 | Confinement |
| 418001 | Conflict Resolution |
| 404026 | Conflict Theory |
| 1013500 | Confocal Microscopy |
| 715506 | Congenital Heart Disease |
| 112030 | Congo (Brazzaville) |
| 705020 | Connective Tissue |
| 1002005 | Conservation Biology |
| 801007 | Constitutional Law |
| 412036 | Constitutions |
| 606005 | Construction Engineering |
| 801027 | Construction Law |
| 606006 | Construction Management |
| 901085 | Consulting Services |
| 404005 | Consumer Behavior |
| 502007 | Consumer Education |
| 801008 | Consumer Law |
| 901012 | Consumer Services |
| 609048 | Contact Stress Analysis |
| 405004 | Content Analysis (communications) |
| 609005 | Continuum Mechanics |
| 750020 | Contraceptives |
| 801043 | Contract |
| 1004012 | Control Applications (Computer Sciences) |
| 609006 | Control Systems |
| 1004013 | Control Theory (Computer Sciences) |
| 1104012 | Conventional Warfare |
| 715060 | Convulsive Disorders |
| 503041 | Cooperative Education |
| 503045 | Cooperative Learning USE: Cooperative Education |
| 1014010 | Cooperative Science Programs |
| 901049 | Cooperatives |
| 1103025 | Corporate Libraries |
| 901097 | Corporate or Nonprofit Philanthropy |
| 901599 | Corporate Planning USE: Strategic Planning |
| 407599 | Correctional Institutions USE: Penology |
| 1009002 | Corrosion |
| 1009040 | Corrosion Protection |
| 801011 | Corruption |
| 801033 | Corruption in Government |
| 785231 | Cosmetic Surgery USE: Plastic Surgery |
| 1003061 | Cosmetics |
| 1013509 | Cosmochemistry |
| 1250005 | Cosmology |
| 901063 | Cost Benefit Analysis |
| 901598 | Cost Modeling USE: Cost Benefit Analysis |
| 112031 | Costa Rica |
| 203009 | Cottonseeds |
| 404002 | Counseling |
| 406008 | Counseling Ethics |
| 406000 | Counseling or Guidance |
| 503008 | Counseling or Guidance Education |
| 1104010 | Countermeasures |
| 801042 | Counterterrorism |
| 1008045 | Coupled Ocean Acoustics Models |
| 320002 | Craft Art |
| 715061 | Craniofacial Disorders |
| 320015 | Creative Arts |
| 304000 | Creative Writing |
| 901013 | Credit |
| 407002 | Crime Causation |
| 407003 | Crime Prevention |
| 407010 | Criminal Identification |
| 407012 | Criminal Information System |
| 407005 | Criminal Justice |
| 801010 | Criminal Law |
| 407016 | Criminal Psychology |
| 407014 | Criminal Statistics |
| 407000 | Criminology |
| 406001 | Crisis Counseling |
| 730088 | Critical Care |
| 312502 | Critical Theory |
| 112173 | Croatia |
| 201023 | Crop Insurance |
| 201510 | Crop Modeling |
| 201024 | Crop Science |
| 403005 | Cross Cultural Studies |
| 1015380 | Cryogenics |
| 755043 | Cryopreservation |
| 1004014 | Cryptography |
| 1010060 | Cryptology |
| 1009014 | Crystal Growth |
| 1009003 | Crystallography |
| 112032 | Cuba |
| 901511 | Culinary Arts |
| 306000 | Cultural Activities |
| 401001 | Cultural Anthropology |
| 403056 | Cultural Diversity |
| 409013 | Cultural Geography |
| 309062 | Cultural Heritage |
| 309045 | Cultural History |
| 403000 | Cultural or Population Studies |
| 402003 | Cultural Resources |
| 303012 | Culture |
| 314011 | Curatorship |
| 901014 | Currency |
| 502500 | Curriculum Development |
| 901510 | Customer Services USE: Consumer Services |
| 1004062 | Cybersecurity |
| 404031 | Cyberterrorism |
| 112033 | Cyprus |
| 715258 | Cystic Fibrosis |
| 1002051 | Cytogenetics |
| 1002506 | Cytokines |
| 760506 | Cytokinetics USE: Cell Cycle |
| 1002015 | Cytology |
| 1002507 | Cytopathology |
| 1002097 | Cytoskeleton |
| 312121 | Czech and Slovak Languages or Literature |
| 112034 | Czech Republic |
| 203010 | Dairy Products |
| 201025 | Dairy Science |
| 606007 | Dams |
| 316001 | Dance |
| 502008 | Dance Education |
| 312025 | Danish Language or Literature |
| 1015385 | Data Acquisition |
| 1004016 | Data Analysis |
| 1004511 | Data Compression |
| 1004506 | Data Fusion |
| 755018 | Data Management or Analysis (Medical) |
| 1004504 | Data Mining |
| 1004029 | Data Processing |
| 1004166 | Data Systems |
| 1004061 | Database Currency Control |
| 1004500 | Database Management |
| 404006 | Day Care |
| 403065 | Deaf Culture |
| 507007 | Deaf Education |
| 715065 | Deafness |
| 404007 | Death or Dying (Mental or Social Aspects) |
| 715070 | Death or Dying (Physical Aspects) |
| 715044 | Death or Mortality |
| 411015 | Decision Sciences |
| 1104011 | Decision Support Technology |
| 320003 | Decorative Arts |
| 1104015 | Defense Planning Policy |
| 1104018 | Defense Technology |
| 715180 | Dementia |
| 412037 | Democracy |
| 112208 | Democratic Republic of Congo |
| 413001 | Demography |
| 715526 | Demyelinating Diseases |
| 1002524 | Dendroecology |
| 201505 | Dendrology |
| 715139 | Dengue Fever |
| 112035 | Denmark |
| 715041 | Dental Caries |
| 745010 | Dental Health |
| 502009 | Dental Health Education |
| 785040 | Dentistry |
| 760598 | Deoxyribonucleic Acid USE: DNA |
| 1004028 | Dependable Systems |
| 414042 | Dependency |
| 785045 | Dermatology |
| 1015390 | Descent Propulsion Systems |
| 1015395 | Descent Trajectories |
| 111002 | Deserts |
| 307000 | Design Arts |
| 745015 | Detoxification |
| 113003 | Developing Countries--LDCs |
| 1002006 | Developmental Biology |
| 715073 | Developmental Disabilities |
| 1002508 | Developmental Genetics |
| 1002509 | Developmental Neurobiology |
| 414006 | Developmental Psychology |
| 715075 | Diabetes |
| 715080 | Diabetic Retinopathy |
| 607014 | Diagnostic Monitoring Systems |
| 413021 | Diaspora |
| 1013007 | Dielectric Materials |
| 203011 | Dietary Foods |
| 1010502 | Differential Geometry |
| 715085 | Digestive Diseases and Disorders |
| 705025 | Digestive System |
| 1004088 | Digital Computers or Computing |
| 301000 | Digital Humanities |
| 1103004 | Digital Libraries |
| 607500 | Digital Signal Processing |
| 1004064 | Digitization |
| 1210000 | Direct Energy Conversion |
| 1015400 | Directional Stability |
| 415011 | Disabled Rehabilitation USE: Rehabilitation or Therapy |
| 404008 | Disaster Studies |
| 503009 | Discipline Problems |
| 1010021 | Discrete Classification |
| 1010025 | Discrete Mathematics |
| 404063 | Discrimination |
| 715000 | Disease |
| 795003 | Disease Control |
| 755020 | Disease Model |
| 745027 | Disease Prevention |
| 765048 | Disease Resistance |
| 715513 | Disease Symptoms |
| 715535 | Dissociative Disorders |
| 503044 | Distance Learning |
| 1015405 | Distance Measuring Equipment |
| 1004063 | Distributed System |
| 112036 | Djibouti |
| 760079 | DNA |
| 1002069 | DNA Repair |
| 1002070 | DNA Replication |
| 1002510 | DNA Sequencing |
| 403006 | Domestic Violence |
| 112037 | Dominica |
| 112038 | Dominican Republic |
| 1003514 | Dopamine |
| 740080 | Dosage Forms |
| 1270020 | Dosimetry |
| 715508 | Down Syndrome |
| 201026 | Drainage |
| 304001 | Drama |
| 312005 | Dramatic Language or Literature |
| 316002 | Dramatic or Theatre Arts |
| 320004 | Drawing |
| 502010 | Driver Education |
| 503043 | Dropout Prevention |
| 745078 | Drug Abuse Prevention |
| 745079 | Drug Abuse Treatment |
| 740081 | Drug Delivery Systems |
| 755025 | Drug Design |
| 502011 | Drug Education |
| 740085 | Drug Kinetics USE: Pharmacokinetics |
| 710045 | Drug Metabolism |
| 755026 | Drug Modeling USE: Drug Design |
| 765045 | Drug Resistance |
| 1002104 | Drug Resistance |
| 745046 | Drug Therapy USE: Pharmacotherapy |
| 710507 | Drug Toxicity |
| 407004 | Drug Trafficking |
| 404009 | Drugs or Drug Abuse |
| 312026 | Dutch Language or Literature |
| 1015410 | Dynamic Characteristics |
| 1015415 | Dynamic Stability |
| 1010022 | Dynamical Systems |
| 715090 | Dyslexia |
| 715274 | Dystonia |
| 760508 | E Coli |
| 715528 | Ear Diseases |
| 1002560 | Early Childhood Development |
| 506000 | Early Childhood Education |
| 745081 | Early Intervention |
| 775005 | Ears & Hearing |
| 1015420 | Earth Atmosphere |
| 1015425 | Earth Orbital Rendezvous |
| 1015430 | Earth Orbits |
| 1005040 | Earth Remote Sensing |
| 601017 | Earth Satellite Applications |
| 1005000 | Earth Science |
| 1005014 | Earth Science Instrumentation |
| 502501 | Earth Sciences Education |
| 606008 | Earthquake Engineering |
| 404058 | Earthquake Mitigation |
| 108001 | Eastern Hemisphere |
| 715507 | Eating Disorders |
| 715142 | Ebola Virus |
| 111000 | Ecological Zones |
| 1002016 | Ecology |
| 413013 | Ecology and Population |
| 408002 | Econometrics |
| 408500 | Economic Analysis |
| 408501 | Economic Anthropology |
| 408041 | Economic Competitiveness |
| 901015 | Economic Development |
| 409003 | Economic Geography |
| 1005007 | Economic Geology |
| 309003 | Economic History |
| 408502 | Economic Policy |
| 408013 | Economic Stabilization |
| 408003 | Economic Theory |
| 113000 | Economic, Linguistic or Political Organizations |
| 408000 | Economics |
| 502061 | Economics Education |
| 408018 | Economics of Consumption |
| 408036 | Economics of Indexing |
| 408014 | Economics of Research and Development |
| 408032 | Economics of Telecommunications |
| 408040 | Economics Studies - Developing Countries |
| 1002592 | Ecophysiology USE: Biological Adaptation |
| 1007027 | Ecosystems |
| 1235006 | Ecotoxicity |
| 112039 | Ecuador |
| 304011 | Editorial Projects |
| 500000 | Education |
| 503011 | Education and Work |
| 501001 | Education Finance |
| 507004 | Education for People with Disabilities |
| 507005 | Education for People with Learning Disabilities |
| 720000 | Education or Instruction (Health or Safety or Medical) |
| 502000 | Education or Instructional Programs |
| 501000 | Educational Administration and Policy |
| 503012 | Educational Evaluation |
| 503035 | Educational Improvement |
| 801012 | Educational Law |
| 501036 | Educational Loans, Guarantees or Investments |
| 503046 | Educational Materials |
| 503000 | Educational Modes or Psychology or Theory |
| 503013 | Educational or Public Television |
| 411011 | Educational Planning or Policy |
| 414007 | Educational Psychology |
| 503036 | Educational Reform |
| 503500 | Educational Research |
| 503037 | Educational Restructuring |
| 1004038 | Educational Software |
| 501035 | Educational Studies - Developing Countries |
| 503599 | Educational Technology USE: Instructional Technology |
| 405014 | Educational Telecommunications |
| 503014 | Educational Tests & Measurements |
| 503038 | Educational Values |
| 501013 | Educational Volunteers |
| 706597 | EEG USE: Electroencephalography |
| 901016 | Efficiency Studies |
| 112040 | Egypt |
| 1015435 | Ejection |
| 112041 | El Salvador |
| 1015440 | Elastic Waves |
| 609007 | Elasticity |
| 1009045 | Elastomers or Coatings |
| 719910 | Elderly Patients |
| 412016 | Electoral System |
| 1015445 | Electric Generators |
| 607005 | Electric Power Conversion |
| 1205010 | Electric Power Systems |
| 607007 | Electric Power Transmission |
| 607046 | Electric Switches |
| 609004 | Electric Vehicles |
| 607000 | Electrical Engineering or Electronics |
| 607006 | Electricity Generation |
| 1002525 | Electroblotting |
| 1003031 | Electrochemical Analysis |
| 1003021 | Electrochemistry |
| 706051 | Electroencephalography |
| 1210005 | Electrohydrodynamic Generators |
| 1250025 | Electrohydrodynamic Physics |
| 1250010 | Electrohydrodynamics |
| 607040 | Electrolytic Cells |
| 1015450 | Electromagnetic Coupling |
| 607008 | Electromagnetic Propagation |
| 1015460 | Electromagnetic Propulsion |
| 607009 | Electromagnetics |
| 609008 | Electromechanical System |
| 607506 | Electromigration |
| 785048 | Electromyography |
| 1013038 | Electron Microscopy |
| 607501 | Electron Paramagnetic Resonance |
| 607502 | Electron Spin Resonance |
| 607503 | Electron Transfer |
| 1016073 | Electronic Cigarettes |
| 901055 | Electronic Commerce |
| 607004 | Electronic Control Systems |
| 1016070 | Electronic Devices |
| 730046 | Electronic Health Records |
| 1016075 | Electronic Materials |
| 405010 | Electronic Media |
| 607041 | Electronic Neural Network |
| 1004023 | Electronic Publishing |
| 1013513 | Electronic Structure |
| 1016065 | Electronic Warfare |
| 609042 | Electronics Cooling |
| 1016080 | Electro-Optical Technology |
| 1013047 | Electro-Optics |
| 1002112 | Electrophoresis |
| 710050 | Electrophysiology |
| 1002085 | Electroreception |
| 607504 | Electrostatic Discharge (ESD) |
| 504001 | Elementary Education |
| 504000 | Elementary or Secondary Education |
| 1013021 | Elementary Particle Physics |
| 715514 | Embolisms |
| 1002511 | Embryogenesis |
| 1002017 | Embryology |
| 705503 | Embryonic Structures |
| 730087 | Emergency Medical Care |
| 411008 | Emergency or Disaster Planning or Policy |
| 1104002 | Emergency Preparedness (defense) |
| 401003 | Emergency Services |
| 609009 | Emission Control |
| 715596 | Emotional Health USE: Mental Health |
| 415001 | Emotional or Social Therapy |
| 507002 | Emotionally Disturbed Education |
| 414507 | Emotions |
| 901017 | Employee Benefits |
| 901034 | Employees |
| 901048 | Employment Opportunity Program |
| 408016 | Employment or Unemployment Studies |
| 1002515 | Endangered Species |
| 705030 | Endocrine System |
| 715097 | Endocrinologic Diseases |
| 785050 | Endocrinology |
| 715039 | Endometrial Cancer |
| 715168 | Endometriosis |
| 760010 | Endorphins |
| 706056 | Endoscopy |
| 1008050 | Energetics |
| 1009050 | Energy Absorbing Materials |
| 1215000 | Energy Biological or Biomedical Sciences |
| 1220000 | Energy Chemical Sciences |
| 1210030 | Energy Conservation |
| 1255000 | Energy Consumption |
| 408004 | Energy Economics |
| 1280000 | Energy Education |
| 1255002 | Energy Efficiency |
| 1225000 | Energy Engineering |
| 1230000 | Energy Environmental Sciences |
| 1230045 | Energy Environmental Studies - Developing Countries |
| 1260085 | Energy Exploration or Reserves |
| 1280005 | Energy Faculty Support |
| 1235000 | Energy Geosciences |
| 1280010 | Energy Graduate Support |
| 901057 | Energy Industry |
| 1260115 | Energy Legislation or Regulation |
| 1260120 | Energy Marketing |
| 1240000 | Energy Materials Sciences |
| 1245000 | Energy Mathematical Sciences |
| 1280500 | Energy Metabolism |
| 1250000 | Energy Physical Sciences |
| 411019 | Energy Planning or Policy |
| 1280015 | Energy Postdoctoral Support |
| 1280020 | Energy Precollege Support |
| 1260130 | Energy Products or By-Products |
| 1255050 | Energy Public Utilities |
| 609060 | Energy Release or Transport |
| 1200000 | Energy Sciences |
| 1255023 | Energy Storage Systems |
| 1016081 | Energy Technology |
| 1255060 | Energy Testing or Analysis |
| 1280501 | Energy Transfer |
| 600000 | Engineering |
| 608001 | Engineering Administration or Management |
| 609010 | Engineering Design |
| 502042 | Engineering Education |
| 606009 | Engineering Geology |
| 608002 | Engineering Innovation Processes |
| 608003 | Engineering Management Information Systems |
| 608004 | Engineering Personnel Management |
| 411020 | Engineering Planning or Policy |
| 608005 | Engineering Project Management |
| 414016 | Engineering Psychology |
| 608006 | Engineering Statistics |
| 1016082 | Engineering Technology |
| 609011 | Engines |
| 112187 | England |
| 502014 | English as a Second Language--ESL |
| 502013 | English Education |
| 312122 | English Language or Literature |
| 113013 | ENI East |
| 113012 | ENI South |
| 201103 | Enology or Viticulture |
| 1002018 | Entomology |
| 901050 | Entrepreneurship |
| 725000 | Environment (Health or Safety or Medical) |
| 1007037 | Environmental Aspects |
| 1007001 | Environmental Biology |
| 1007002 | Environmental Chemistry |
| 1007015 | Environmental Conservation |
| 609012 | Environmental Design (Mechanical) |
| 307002 | Environmental Design or Technology |
| 408503 | Environmental Economics |
| 502015 | Environmental Education |
| 1007003 | Environmental Effects |
| 1260080 | Environmental Effects (Fossil Energy) |
| 1275005 | Environmental Effects (Hydropower) |
| 1009004 | Environmental Effects (Materials) |
| 1270050 | Environmental Effects (Nuclear Fuels) |
| 1270155 | Environmental Effects (Nuclear Reactor) |
| 606010 | Environmental Engineering |
| 1007513 | Environmental Ethics |
| 1007004 | Environmental Geography |
| 725005 | Environmental Health |
| 725010 | Environmental Health Standards |
| 418002 | Environmental Justice |
| 801013 | Environmental Law |
| 1007500 | Environmental Management |
| 725036 | Environmental Medicine |
| 1007501 | Environmental Microbiology |
| 1007504 | Environmental Monitoring |
| 1007016 | Environmental Physics |
| 411009 | Environmental Planning or Policy |
| 1007506 | Environmental Preservation USE: Environmental Conservation |
| 414044 | Environmental Psychology |
| 801009 | Environmental Regulations USE: Environmental Law |
| 1007505 | Environmental Restoration or Remediation |
| 1007000 | Environmental Science |
| 1230030 | Environmental Site Use Studies |
| 511000 | Environmental Studies |
| 1007516 | Environmental Sustainability |
| 1016083 | Environmental Technology |
| 1007503 | Environmental Toxicology |
| 1002089 | Enzyme Catalysis |
| 710511 | Enzyme Linked Immunosorbent Assay |
| 760013 | Enzymes |
| 710055 | Enzymology |
| 1007017 | EPA Laboratory Support |
| 785055 | Epidemiology |
| 760014 | Epigenetics |
| 715244 | Epilepsy |
| 317500 | Epistemology |
| 715509 | Epstein-Barr Virus |
| 501003 | Equal Educational Opportunity |
| 412043 | Equal Opportunity |
| 112213 | Equatorial Guinea |
| 201108 | Equine Diseases or Pathology |
| 1002055 | Equine Studies |
| 608007 | Ergonomics |
| 112195 | Eritrea |
| 1010031 | Error Control |
| 715046 | Esophageal Cancer |
| 705032 | Esophagus |
| 801028 | Estate Law |
| 801041 | Estate Planning |
| 112176 | Estonia |
| 1008002 | Estuarine Sciences |
| 1265015 | Ethane |
| 317002 | Ethics |
| 1014004 | Ethics in Science and Technology |
| 112042 | Ethiopia |
| 401008 | Ethnic Studies |
| 401006 | Ethnobotany |
| 401007 | Ethnography |
| 401009 | Ethnohistory |
| 401010 | Ethnology |
| 755030 | Etiology |
| 1002113 | Eugenics |
| 103009 | Eurasia |
| 104000 | Europe |
| 104007 | Europe, Central |
| 104002 | Europe, Eastern |
| 104003 | Europe, Northern |
| 104005 | Europe, Southern |
| 104006 | Europe, Western |
| 307022 | European Architecture |
| 113004 | European Communities |
| 408022 | European Economic Integration |
| 309046 | European History |
| 312126 | European Languages or Literature |
| 403066 | European Studies |
| 113009 | European Union |
| 1016077 | Evacuations & Rescues |
| 403027 | Events Planning |
| 710515 | Evoked Potential |
| 1014016 | Evolution |
| 1002056 | Evolutionary Biology |
| 414504 | Evolutionary Psychology |
| 502012 | Exchange Programs |
| 745030 | Exercise |
| 1002512 | Exercise Physiology |
| 1002116 | Exobiology |
| 1002526 | Exotic Species |
| 303015 | Expansion Arts |
| 1010018 | Experimental Design |
| 1270160 | Experimental Nuclear Reactors |
| 1013086 | Experimental Physics |
| 414501 | Experimental Psychology |
| 1004027 | Expert Systems |
| 1220050 | Explosives |
| 120006 | Exports |
| 1205020 | External Combustion Engines |
| 1008055 | Extra Tropical Storms |
| 760511 | Extracellular Matrix |
| 1013503 | Extrasolar Planets |
| 1015470 | Extraterrestrial Environments |
| 1015975 | Extraterrestrial Life |
| 1015475 | Extraterrestrial Radiation |
| 715100 | Eye Diseases |
| 502046 | Faculty Development USE: Teacher Education |
| 609501 | Failure Analysis |
| 609065 | Failure Mechanics |
| 715281 | Failure To Thrive |
| 109005 | Falkland Islands |
| 403007 | Family |
| 730010 | Family Health Services |
| 801068 | Family Law |
| 785080 | Family Medicine |
| 406002 | Family or Marriage Counseling |
| 730599 | Family Planning USE: Family Health Services |
| 416020 | Family Services |
| 745501 | Family Therapy |
| 201027 | Farm Machinery |
| 201028 | Farm or Ranch Management |
| 307003 | Fashion or Textiles Design |
| 901086 | Feasibility Studies |
| 109016 | Federated States of Micronesia |
| 203012 | Feed Grains |
| 201109 | Feline Diseases or Pathology |
| 715515 | Female Genital Disorders |
| 403501 | Feminist Theory |
| 1002057 | Fermentation |
| 607071 | Ferrites |
| 607507 | Ferroelectricity |
| 201029 | Fertilizers |
| 715259 | Fetal Alcohol Syndrome |
| 705035 | Fetus |
| 607030 | Fiber Optics |
| 715143 | Fibromyalgia |
| 304002 | Fiction |
| 312006 | Fictional Language or Literature |
| 1015490 | Field Aligned Currents |
| 1015495 | Field Theory (Physics) |
| 112043 | Fiji |
| 313001 | Film or Cinema or Video |
| 606087 | Filtration |
| 901018 | Finance |
| 901502 | Financial Management |
| 303016 | Fine Arts |
| 606011 | Finite Element Analysis |
| 1010005 | Finite Mathematics |
| 112044 | Finland |
| 1101000 | Fire Flammability Studies |
| 1009161 | Fire Retardant Materials |
| 1101001 | Fire Safety |
| 404062 | Firearms |
| 408005 | Fiscal Theory |
| 201030 | Fish and Fisheries |
| 601005 | Flight Control Systems |
| 1015500 | Flight Instruments |
| 601011 | Flight Testing |
| 1007032 | Floodplains |
| 201508 | Floriculture |
| 609070 | Flow Control |
| 609502 | Flow Cytometry |
| 609075 | Fluid Dynamics |
| 1015510 | Fluid Flow |
| 609014 | Fluid Mechanics |
| 1250020 | Fluid Physics |
| 1013048 | Fluorescence |
| 745085 | Fluorides |
| 1015515 | Flux Rate or Flux Density |
| 1205025 | Flywheel Propulsion |
| 730015 | Folk Medicine |
| 308001 | Folk or Ethnic Arts |
| 308000 | Folk or Ethnic Studies |
| 308002 | Folklore and Mythology |
| 202001 | Food Additives |
| 202002 | Food Analysis |
| 202019 | Food and Trade Policy |
| 202003 | Food Chemistry |
| 202004 | Food Consumption |
| 202005 | Food Distribution |
| 202006 | Food Drying |
| 202007 | Food Engineering |
| 202031 | Food Inspection |
| 202008 | Food Labeling |
| 202009 | Food Management |
| 202010 | Food Manufacturing |
| 202011 | Food Marketing |
| 202012 | Food Practices |
| 202013 | Food Preparation |
| 202014 | Food Preservation |
| 202015 | Food Processing |
| 202025 | Food Radiation |
| 202016 | Food Safety |
| 202000 | Food Science |
| 201074 | Food Security |
| 404010 | Food Stamps |
| 202017 | Food Storage |
| 202018 | Food Technology |
| 715532 | Foodborne Diseases |
| 203000 | Foods |
| 502016 | Foreign Language Instruction |
| 411012 | Foreign Policy USE: International Planning or Policy |
| 1019000 | Forensic Sciences |
| 801014 | Forensic Testimony |
| 201067 | Forest Ecology |
| 201031 | Forest Economics |
| 201070 | Forest Engineering |
| 201068 | Forest Management |
| 201032 | Forestry |
| 1004031 | Formal Semantics |
| 412026 | Formal Theory (Political Science) |
| 112124 | Former Soviet Union |
| 1260000 | Fossil Energy |
| 1260075 | Fossil Fuel Drilling or Mining |
| 1260150 | Fossil Fuel Handling or Transport |
| 1260125 | Fossil Fuel Production and Refining |
| 1260135 | Fossil Fuel Properties |
| 1260140 | Fossil Fuel Storage |
| 1260145 | Fossil Fuel Surface Methods |
| 1260155 | Fossil Fuel Waste Management |
| 609503 | Fracture Analysis or Mechanics |
| 112045 | France |
| 901098 | Free Enterprise |
| 112046 | French Guiana |
| 312030 | French Language or Literature |
| 1002544 | Freshwater Biology |
| 1007507 | Freshwater Conservation |
| 1002591 | Freshwater Ecology USE: Limnology |
| 609046 | Friction |
| 1008065 | Fronts and Eddies |
| 202020 | Frozen Foods |
| 203013 | Fruits |
| 1210010 | Fuel Cells |
| 609080 | Fuel Synthesis Characterization |
| 1016090 | Fuel Use Management Aids |
| 1009085 | Functional Materials |
| 715103 | Fungal Infections |
| 1012005 | Fusion |
| 1270110 | Fusion Technology |
| 1004057 | Fuzzy logic |
| 112047 | Gabon |
| 109006 | Galapagos Island |
| 112048 | Gambia |
| 404502 | Gambling |
| 1010016 | Game Theory |
| 1106001 | Games |
| 201598 | Gardening USE: Horticulture |
| 609504 | Gas Chromatography |
| 1013052 | Gas Dynamics |
| 1015520 | Gas Flow |
| 609016 | Gas Turbines |
| 785060 | Gastroenterology |
| 785119 | Gastrointestinal Surgery |
| 1004075 | Gateways |
| 414054 | Gender Differences |
| 403502 | Gender Issues |
| 755035 | Gene Cloning |
| 765046 | Gene Expression |
| 760504 | Gene Mapping |
| 760015 | Gene Products |
| 765015 | Gene Regulation |
| 1002527 | Gene Targeting |
| 745083 | Gene Therapy |
| 760502 | Gene Transfer |
| 310000 | General Humanities Topics |
| 1014000 | General Science and Technology Topics |
| 760503 | Genes |
| 1004067 | Genetic Algorithms |
| 715104 | Genetic Disorders |
| 1002188 | Genetic Engineering |
| 755040 | Genetic Manipulation |
| 1002528 | Genetic Markers |
| 1002545 | Genetic Models |
| 414048 | Genetic Psychology |
| 1002529 | Genetic Toxicology |
| 1002019 | Genetics |
| 404501 | Genocide |
| 1002600 | Genomics |
| 1006000 | Geobiology |
| 1005002 | Geochemistry |
| 1005003 | Geodesy |
| 1005041 | Geodynamics |
| 409500 | Geographic Information Systems |
| 409002 | Geographic Quantitative Methods |
| 409000 | Geography |
| 502062 | Geography Education |
| 1005005 | Geology |
| 1005038 | Geomagnetism |
| 1005039 | Geomatics |
| 1010006 | Geometry |
| 1005011 | Geomorphology |
| 1013009 | Geophysics |
| 112177 | Georgia |
| 1005044 | Geoscience |
| 606012 | Geotechnical Engineering |
| 1275010 | Geothermal Energy |
| 1275015 | Geothermal Engineering |
| 715240 | Geriatric Mental Health |
| 785061 | Geriatrics |
| 403047 | German Americans |
| 112199 | German Democratic Republic (GDR), Former |
| 312028 | German Language or Literature |
| 112050 | Germany |
| 710010 | Gerontology |
| 414040 | Gestalt Psychology |
| 112051 | Ghana |
| 507003 | Gifted Education |
| 409599 | GIS USE: Geographic Information Systems |
| 1005042 | Glacial Geology |
| 1005012 | Glaciology |
| 1240005 | Glasses |
| 1010503 | Global Analysis |
| 1007018 | Global Change |
| 730071 | Global Health |
| 409501 | Global Positioning Systems |
| 725500 | Global Warming |
| 408019 | Globalization |
| 1002513 | Glycobiology |
| 412038 | Government Accountability |
| 1103026 | Government Libraries |
| 412003 | Government Studies |
| 412012 | Governmental Functions |
| 409598 | GPS USE: Global Positioning Systems |
| 505011 | Graduate Studies |
| 201033 | Grain |
| 201090 | Grain Processing or Storage |
| 1014006 | Grants Administration or Policy |
| 323000 | Graphic Arts |
| 307004 | Graphic Design |
| 1002100 | Grasses |
| 1007034 | Grasslands |
| 1013010 | Gravitation |
| 112052 | Greece |
| 606020 | Green Buildings |
| 1007013 | Greenhouse Gases |
| 109007 | Greenland |
| 109023 | Grenada |
| 414508 | Grief |
| 1015530 | Ground Stations |
| 1015535 | Ground Support Equipment |
| 1007029 | Groundwater |
| 417028 | Group Behavior USE: Collective Behavior |
| 760021 | Growth Factor Receptors |
| 760020 | Growth Factors |
| 760505 | Growth Hormones |
| 109008 | Guam |
| 112053 | Guatemala |
| 112054 | Guinea |
| 112055 | Guinea-Bissau |
| 110009 | Gulf of Mexico |
| 403026 | Gulf War Veterans USE: Veterans |
| 112056 | Guyana |
| 1007036 | Habitats |
| 112057 | Haiti |
| 404011 | Halfway Houses |
| 404035 | Harassment |
| 1010035 | Harmonic Analysis |
| 114004 | Hawaii |
| 403055 | Hawaiian Native |
| 1009018 | Hazardous Materials |
| 1007024 | Hazardous Substances |
| 606053 | Hazardous Waste Disposal or Cleanup |
| 1007012 | Hazardous Wastes |
| 715047 | Head & Neck Cancer |
| 715025 | Headaches |
| 700000 | Health and Medicine |
| 502017 | Health and Safety Education |
| 715510 | Health Behavior |
| 730000 | Health Care |
| 730085 | Health Care Cost Containment |
| 730086 | Health Care Financing |
| 730020 | Health Care Management |
| 783015 | Health Care Planning or Policy |
| 408006 | Health Economics |
| 730025 | Health Facilities Studies |
| 730045 | Health Information Technology |
| 730030 | Health Insurance |
| 730035 | Health Maintenance Organizations |
| 730090 | Health of Underserved Populations |
| 730089 | Health or Nutrition Programs - Developing Countries |
| 1260110 | Health or Safety Issues (Fossil Energy) |
| 730091 | Health Physics |
| 745035 | Health Promotion |
| 414018 | Health Psychology |
| 730050 | Health Services Delivery |
| 715050 | Hearing Disorders |
| 705081 | Heart |
| 715516 | Heart Diseases |
| 715063 | Heart Failure |
| 785216 | Heart Surgery USE: Thoracic Surgery |
| 609017 | Heat Transfer |
| 1220020 | Heavy Element Chemistry |
| 312029 | Hebrew Language or Literature |
| 1015545 | Helicopters |
| 785070 | Hematology |
| 108000 | Hemispheres |
| 745025 | Hemodialysis |
| 710508 | Hemodynamics |
| 715233 | Hemophilia |
| 715133 | Hemorrhagic Fevers, Viral |
| 740022 | Hemostatic Agents |
| 715282 | Hepatitis |
| 785071 | Hepatology |
| 201034 | Herbicides |
| 715267 | Herpes |
| 1002020 | Herpetology |
| 1003505 | Heterocyclic Chemistry |
| 111003 | High Altitude Zones |
| 715116 | High Blood Pressure USE: Hypertension |
| 1013510 | High Energy Astrophysics |
| 1013022 | High Energy Physics |
| 1008070 | High Latitude Processes |
| 1008075 | High Latitude Sediment Dynamics |
| 1004167 | High Performance Computing |
| 1013011 | High Pressure Physics |
| 1220025 | High Temperature Chemistry |
| 1009055 | High Temperature Coatings |
| 1002083 | High Temperature or Pressure Biology |
| 505000 | Higher Education |
| 505003 | Higher Education, Private |
| 505004 | Higher Education, Public |
| 606064 | Highway Construction Work Zone |
| 606054 | Highway Engineering |
| 318045 | Hinduism |
| 403009 | Hispanics |
| 1002530 | Histochemistry |
| 1002021 | Histology |
| 319004 | Historic Preservation |
| 309047 | Historical Documents |
| 309084 | Historical Revolution |
| 309000 | History |
| 309004 | History and Appreciation of Art |
| 502063 | History Education |
| 309006 | History of Law |
| 309013 | History of Medicine |
| 309019 | History of Oceania |
| 309007 | History of Philosophy |
| 309008 | History of Science and Technology |
| 503015 | History or Philosophy of Education |
| 745505 | HIV Prevention |
| 730036 | HMO USE: Health Maintenance Organizations |
| 730093 | Holistic Medicine |
| 309082 | Holocaust Studies |
| 1013054 | Holography |
| 1101500 | Home Economics |
| 502018 | Home Economics Education |
| 503502 | Home Education |
| 730098 | Home Health Care |
| 403048 | Homeless People |
| 416021 | Homeless Services |
| 403025 | Homosexual, Female |
| 403023 | Homosexual, Male |
| 112058 | Honduras |
| 112167 | Hong Kong |
| 113020 | Horizon 2020 (H2020 Associated States) |
| 113023 | Horizon 2020 (H2020 Member States) |
| 760025 | Hormones |
| 201035 | Horticulture |
| 730055 | Hospice Care |
| 901051 | Hospital Administration |
| 901019 | Hotel or Restaurant Management |
| 1102000 | Housing |
| 801015 | Housing Law |
| 110010 | Hudson Bay |
| 1007019 | Hudson River Studies |
| 1016095 | Hull Surface Treatment |
| 1002053 | Human Development |
| 1007020 | Human Ecology |
| 1002110 | Human Ethology |
| 608008 | Human Factors Engineering |
| 1215018 | Human Genome |
| 715595 | Human Immunodeficiency Virus USE: Human Immunodeficiency Virus--HIV |
| 715278 | Human Immunodeficiency Virus--HIV |
| 414017 | Human Learning and Memory |
| 1104008 | Human Performance (Military) |
| 1002061 | Human Physiology |
| 413011 | Human Population and Genetics |
| 413002 | Human Reproduction or Fertility |
| 901101 | Human Resources |
| 730040 | Human Resources (Medical) |
| 416599 | Human Services USE: Social Services |
| 783005 | Human Subjects Policy |
| 606066 | Human Tolerance To Impact |
| 407019 | Human Trafficking |
| 1004503 | Human-Computer Interaction |
| 414008 | Humanistic Psychology |
| 310005 | Humanities Funding |
| 502019 | Humanities or Liberal Art Education |
| 310001 | Humanities Planning Policy |
| 111004 | Humid Zones |
| 112059 | Hungary |
| 715245 | Huntingtons Disease |
| 1001011 | Hurricanes |
| 609018 | HVAC |
| 1205030 | Hybrid Propulsion Systems |
| 609013 | Hybrid Vehicles |
| 760030 | Hybridomas |
| 606013 | Hydraulic Engineering |
| 1275025 | Hydro Energy, Meteorology |
| 1008080 | Hydroacoustics |
| 1265025 | Hydrocarbon Fuel Preparation |
| 1265020 | Hydrocarbon Fuels |
| 1005045 | Hydrodynamics |
| 1265000 | Hydrogen and Synthetic Fuels |
| 1265035 | Hydrogen Fuel Biosynthesis |
| 1265040 | Hydrogen Fuel Electrolysis |
| 1265045 | Hydrogen Fuel Thermochemical Processes |
| 1265050 | Hydrogen Fuel Transport |
| 1265055 | Hydrogen Fuel Water or Gas Processes |
| 1265030 | Hydrogen Fuels |
| 1005025 | Hydrogeology |
| 1005013 | Hydrology |
| 1275020 | Hydropower |
| 715271 | Hyperactivity |
| 715105 | Hyperplasia |
| 715110 | Hypersensitivity |
| 715115 | Hypertension |
| 745037 | Hyperthermia |
| 715536 | Hypoxia |
| 309059 | Iberian Studies |
| 1008085 | Ice - Acoustic Interactions |
| 112060 | Iceland |
| 312031 | Icelandic Language or Literature |
| 1002022 | Ichthyology |
| 407011 | Identity Theft |
| 403010 | Illegal Aliens |
| 320010 | Illustration, Children's Literature USE: Drawing |
| 320011 | Illustrations |
| 607031 | Image Processing Systems |
| 403011 | Immigrants |
| 413008 | Immigration |
| 801016 | Immigration Law |
| 740023 | Immune Enhancers |
| 705040 | Immune System |
| 715120 | Immune System Disorders |
| 745086 | Immunization |
| 710510 | Immunoassay |
| 710059 | Immunobiology |
| 710060 | Immunochemistry |
| 1002099 | Immunodiagnostic |
| 710516 | Immunofluorescence |
| 710065 | Immunogenetics |
| 710061 | Immunohistochemistry |
| 710070 | Immunology |
| 710075 | Immunopathology |
| 1002177 | Immunophysiology |
| 710513 | Immunoprecipitation |
| 710517 | Immunoregulation |
| 745040 | Immunosuppression |
| 745045 | Immunotherapy |
| 740082 | Implants |
| 120007 | Imports |
| 1002593 | In Situ Hybridization USE: Nucleic Acid Hybridization |
| 715272 | Incontinence |
| 112061 | India |
| 110011 | Indian Ocean |
| 403057 | Indigenous Peoples |
| 112062 | Indonesia |
| 607069 | Inducers |
| 502020 | Industrial Arts Education |
| 1003007 | Industrial Chemistry |
| 408026 | Industrial Cooperation |
| 609019 | Industrial Design |
| 408504 | Industrial Economics |
| 1255030 | Industrial Energy Heat Recovery |
| 1255010 | Industrial Energy Use |
| 608000 | Industrial Engineering |
| 1002554 | Industrial Microbiology |
| 408027 | Industrial Organization |
| 1255025 | Industrial Processes Energy Use |
| 408024 | Industrial Production |
| 414009 | Industrial Psychology |
| 608009 | Industrial Relations |
| 901068 | Industrial Robotics |
| 417047 | Industrial Sociology |
| 608010 | Industrial Systems Engineering |
| 1016210 | Industrial Technology |
| 1007021 | Industrial Waste |
| 1255035 | Industrial Waste Management |
| 901020 | Industry |
| 1270097 | Inertial Fusion |
| 414032 | Infant Psychology |
| 403020 | Infants |
| 715125 | Infectious Diseases |
| 715517 | Infertility |
| 715026 | Inflammation |
| 715230 | Inflammatory Bowel Disease |
| 715527 | Influenza |
| 1004508 | Informatics |
| 1004019 | Information Management |
| 607070 | Information or Communication Systems |
| 1004507 | Information or Data Centers |
| 1004509 | Information Retrieval |
| 1004017 | Information Science or Systems |
| 1016098 | Information Technology |
| 1004018 | Information Theory |
| 1104034 | Information Warfare |
| 1013075 | Infrared or Optical Astronomy |
| 1009060 | Infrared Window Materials |
| 408017 | Infrastructure |
| 715589 | Inherited Diseases USE: Genetic Disorders |
| 760035 | Inhibitors |
| 715027 | Injury |
| 715028 | Injury Immunophysiology |
| 745089 | Injury Prevention |
| 403012 | Inner City |
| 1003010 | Inorganic Chemistry |
| 1009065 | Inorganic Polymers |
| 770015 | Inpatient Care |
| 201072 | Insecticides USE: Pesticides |
| 801047 | Insolvency or Bankruptcy |
| 715594 | Insomnia USE: Sleep Disorders |
| 320016 | Installation Art |
| 1007508 | Instream Flow |
| 503016 | Instructional Materials and Practices |
| 503042 | Instructional Technology |
| 503017 | Instructional Television |
| 316005 | Instrumental Music |
| 760512 | Insulin |
| 901021 | Insurance or Actuarial Science |
| 1004049 | Integer Programming |
| 607043 | Integrated Circuits |
| 710006 | Integrative Medicine |
| 715130 | Intellectual Disabilities |
| 309048 | Intellectual History |
| 801038 | Intellectual Property |
| 1004042 | Intelligent Agents or Systems |
| 785086 | Intensive Care |
| 503048 | Interactive Learning |
| 405005 | Interactive Media |
| 120001 | Intercultural Communications |
| 303017 | Interdisciplinary Art Forms |
| 1009070 | Interfaces |
| 605014 | Interfacial Phenomena |
| 1013504 | Interferometry |
| 412008 | Intergovernmental Relations |
| 307005 | Interior Design |
| 760509 | Interleukins |
| 1009075 | Intermetallics |
| 1205035 | Internal Combustion Engines |
| 785085 | Internal Medicine |
| 1008090 | Internal Waves |
| 112000 | International |
| 120000 | International Affairs |
| 201036 | International Agriculture |
| 801017 | International and Comparative Law |
| 120003 | International Business |
| 408007 | International Economics |
| 502043 | International Education |
| 730101 | International Health |
| 901076 | International Management |
| 120004 | International or Global Development |
| 411001 | International Planning or Policy |
| 412004 | International Relations |
| 120005 | International Rights |
| 1104016 | International Security |
| 502064 | International Studies Education |
| 901022 | International Trade and Finance |
| 1004059 | Internet of Things |
| 1004056 | Internet or World Wide Web (WWW) |
| 405017 | Interpersonal Communication |
| 1015560 | Interplanetary Spacecraft |
| 1015565 | Interplanetary Trajectories |
| 405018 | Interpreters |
| 1013013 | Interstellar Studies |
| 901070 | Inventory Control Systems |
| 1002062 | Invertebrate Physiology |
| 1002557 | Invertebrate Zoology |
| 901023 | Investment and Securities |
| 1002514 | Ion Channels |
| 1015570 | Ionosphere |
| 1015575 | Ionospheric Conductivity |
| 1001020 | Ionospheric Phenomena |
| 1001059 | Ionospheric Physics |
| 1015580 | Ionospheric Propagation |
| 113011 | IPA Beneficiary Countries |
| 112063 | Iran |
| 112064 | Iraq |
| 112065 | Ireland |
| 1009162 | Iron |
| 1015585 | Irradiation |
| 201037 | Irrigation |
| 715127 | Ischemia |
| 318046 | Islam |
| 401011 | Islamic Studies |
| 109000 | Islands or Island Chains |
| 404030 | Isolation |
| 1005031 | Isotope Geochemistry |
| 1270010 | Isotope Power Supplies |
| 112066 | Israel |
| 312032 | Italian Language or Literature |
| 112067 | Italy |
| 112068 | Ivory Coast |
| 112069 | Jamaica |
| 1016100 | Jammers or Decoys |
| 112070 | Japan |
| 312034 | Japanese Language or Literature |
| 316014 | Jazz Music |
| 1015590 | Jet Aircraft |
| 1015595 | Jet Engines |
| 320005 | Jewelry or Metal Arts |
| 309049 | Jewish History |
| 401012 | Jewish Studies |
| 112071 | Jordan |
| 313002 | Journalism |
| 318047 | Judaism |
| 801034 | Judicial Corruption |
| 801018 | Judicial or Law Administration |
| 311000 | Jurisprudence |
| 407006 | Juvenile Delinquency |
| 801019 | Juvenile Law |
| 112162 | Kazakhstan |
| 112073 | Kenya |
| 785229 | Kidney (Renal) Functions |
| 715048 | Kidney Cancer |
| 715262 | Kidney Diseases |
| 710599 | Kinematics USE: Biomechanics |
| 710076 | Kinesiology |
| 109030 | Kiribati |
| 1004035 | Knowledge Acquisition |
| 901509 | Knowledge Management |
| 1004039 | Knowledge Representation |
| 503047 | Knowledge Sharing |
| 312036 | Korean Language or Literature |
| 112075 | Kuwait |
| 112163 | Kyrgyzstan |
| 408008 | Labor Economics |
| 801020 | Labor Law |
| 901052 | Labor Relations |
| 1002002 | Laboratory Animal Science |
| 1014011 | Laboratory Practice or Procedure |
| 1015600 | Laminar Flow |
| 501037 | Land Acquisition or Real Estate |
| 201038 | Land Management or Land Use |
| 1007006 | Land Pollution |
| 411013 | Land Use Planning |
| 1015605 | Landing |
| 1015610 | Landing Aids |
| 1015615 | Landing Simulation |
| 307006 | Landscape Architecture |
| 1002531 | Landscape Ecology |
| 606014 | Landslides & Mudslides |
| 410001 | Language Acquisition |
| 312012 | Language and or Literature, Translation |
| 502021 | Language Arts |
| 312000 | Language or Literature |
| 312505 | Language or Literature of India |
| 112076 | Laos |
| 1009090 | Large Unit Cell Materials |
| 715049 | Laryngeal Cancer |
| 1015620 | Laser Interferometry |
| 1013050 | Laser Physics |
| 745502 | Laser Surgery |
| 1013014 | Lasers and Masers |
| 113005 | Latin America |
| 309050 | Latin American History |
| 312127 | Latin American Languages or Literature |
| 403067 | Latin American Studies |
| 403008 | Latinos or Latinas |
| 112178 | Latvia |
| 1015625 | Launch Vehicles |
| 800000 | Law |
| 418003 | Law and Social Change |
| 801029 | Law and Society |
| 801021 | Law Enforcement |
| 1103027 | Law Libraries |
| 1240010 | Layered or Superlattice Materials |
| 1009163 | Lead |
| 901024 | Leadership |
| 417040 | Leadership Development |
| 720010 | Learning Disorders |
| 503018 | Learning Motivation |
| 112077 | Lebanon |
| 502022 | Legal Education |
| 801061 | Legal Procedure |
| 801035 | Legal Profession |
| 801037 | Legal Reform |
| 801065 | Legal Service |
| 801067 | Legal Services for People with Disabilities |
| 418005 | Legal Systems |
| 715268 | Leprosy |
| 112078 | Lesotho |
| 715234 | Leukemia |
| 410016 | Lexicography |
| 403503 | LGBTQ Studies |
| 112079 | Liberia |
| 1103024 | Library Acquisitions |
| 1004020 | Library Automation |
| 1103028 | Library Management |
| 1103023 | Library Reference Services |
| 1103000 | Library Science |
| 1103029 | Library Technical Services |
| 1103022 | Library Technology |
| 112080 | Libya |
| 607018 | Lidar |
| 112197 | Liechtenstein |
| 1002189 | Life Sciences |
| 1015630 | Life Support Systems |
| 1003512 | Ligands |
| 607034 | Light Emitting Diodes |
| 607100 | Lighting System Design |
| 1010504 | Limit Theorem |
| 1002025 | Limnology |
| 1004046 | Linear Programming |
| 409004 | Linguistic Geography |
| 410000 | Linguistics or Philology |
| 765025 | Lipid Metabolism |
| 760040 | Lipoproteins |
| 1003509 | Liquid Chromatography |
| 1009169 | Liquid Crystal |
| 1270173 | Liquid Metal Reactor |
| 503019 | Literacy |
| 305002 | Literary Criticism |
| 312130 | Literary Design or Production |
| 312128 | Literary History |
| 312125 | Literary Theory |
| 607042 | Lithography |
| 112179 | Lithuania |
| 715051 | Liver Cancer |
| 715231 | Liver Diseases |
| 705080 | Liver Functions |
| 201039 | Livestock |
| 1004052 | Local Area Networks |
| 412024 | Local Government |
| 1010007 | Logic |
| 901064 | Logistics |
| 111005 | Low Altitude Zones |
| 1013015 | Low Temperature Physics |
| 1013055 | Luminescence |
| 1015635 | Lunar Atmosphere |
| 1015640 | Lunar Environment |
| 1015650 | Lunar Probes |
| 1015003 | Lunar Sciences |
| 1015655 | Lunar Spacecraft |
| 715283 | Lung Cancer |
| 715166 | Lung Diseases USE: Pulmonary Diseases |
| 715235 | Lupus |
| 112081 | Luxembourg |
| 715269 | Lyme Disease |
| 705045 | Lymphatic System |
| 760042 | Lymphocytes |
| 715128 | Lymphomas |
| 112180 | Macedonia |
| 609020 | Machine Design |
| 1004510 | Machine Learning |
| 1004021 | Machine Translation |
| 408009 | Macroeconomics |
| 1002546 | Macrophage |
| 112082 | Madagascar |
| 1245005 | Magnetic Fusion Computation |
| 1009095 | Magnetic Materials |
| 1013042 | Magnetic Resonance |
| 706031 | Magnetic Resonance Imaging |
| 1013016 | Magnetics |
| 1013087 | Magnetics Laboratory Facilities |
| 706052 | Magnetoencephalography |
| 1210015 | Magnetohydrodynamic Generators |
| 1250030 | Magnetohydrodynamic Physics |
| 609021 | Magnetohydrodynamics |
| 1013053 | Magnetospheric Phenomena |
| 715533 | Malaria |
| 112083 | Malawi |
| 112084 | Malaysia |
| 112085 | Maldives |
| 112086 | Mali |
| 112087 | Malta |
| 1002026 | Mammalogy |
| 730056 | Managed Care |
| 901025 | Management Information Systems |
| 901035 | Management or Commerce Planning or Policy |
| 901026 | Management Science |
| 1015670 | Maneuverable Spacecraft |
| 1015665 | Manned Spaceflight |
| 901027 | Manpower Studies |
| 609022 | Manufacturing (Mechanical Engineering) |
| 609095 | Manufacturing Engineering |
| 608011 | Manufacturing Processes (Industrial Engineering) |
| 109009 | Mariana Islands |
| 1008105 | Marine Aggregate Dynamics |
| 1008000 | Marine and Ocean Sciences |
| 1008095 | Marine Atmospheric Boundary Layers |
| 1008100 | Marine Atmospheric Chemistry |
| 1008110 | Marine Biodeterioration |
| 1002178 | Marine Biology |
| 1002505 | Marine Conservation |
| 1230015 | Marine Ecology |
| 609023 | Marine Engineering |
| 1008230 | Marine Environment |
| 1005008 | Marine Geology |
| 1002096 | Marine Mammals |
| 1008115 | Marine Meteorology |
| 1008060 | Marine Microstructure |
| 1008231 | Marine Sciences Planning or Policy |
| 1008120 | Marine Structure |
| 1008232 | Marine Technology |
| 1002190 | Marine Zoology |
| 1008233 | Maritime History |
| 1008234 | Maritime Industry |
| 801022 | Maritime Law |
| 901029 | Market Research |
| 901028 | Marketing |
| 403039 | Marriage |
| 1015675 | Mars Probes |
| 606062 | Masonry Engineering |
| 405006 | Mass Communication |
| 405008 | Mass Media |
| 1003025 | Mass Spectrometry |
| 605006 | Mass Transfer |
| 609040 | Mass Transfer Absorption |
| 401013 | Material Culture |
| 1220030 | Materials Chemistry |
| 606015 | Materials Engineering |
| 1009005 | Materials Fatigue |
| 1009019 | Materials Handling or Storage |
| 609050 | Materials Joining |
| 1240030 | Materials Preparation or Fabrication |
| 1009009 | Materials Processing and Finishing |
| 610001 | Materials Processing Engineering |
| 606017 | Materials Recovery |
| 1009000 | Materials Science |
| 606019 | Materials Testing |
| 606016 | Materials, Engineering Properties |
| 1240045 | Materials, Structure and Phase |
| 1002597 | Mathematical Biology USE: Computational Biology |
| 1010008 | Mathematical Foundations |
| 755065 | Mathematical Modeling (Medical) |
| 1010017 | Mathematical Models |
| 1013078 | Mathematical Physics |
| 1010000 | Mathematics |
| 502023 | Mathematics Education |
| 1010042 | Matrix Theory |
| 1015680 | Matter - Antimatter Propulsion |
| 112088 | Mauritania |
| 112161 | Mauritius |
| 785510 | Maxillofacial Surgery |
| 203014 | Meat and Meat Products |
| 202021 | Meat Inspection |
| 609000 | Mechanical Engineering |
| 1009010 | Mechanical Properties |
| 609024 | Mechanical Systems |
| 609025 | Mechanics |
| 705082 | Mechanism of Action (Medical) |
| 1009110 | Mechanisms of Flow and Fracture |
| 313000 | Media Arts |
| 405011 | Media Management |
| 404027 | Mediation |
| 401015 | Medical Anthropology |
| 745082 | Medical Counseling |
| 706050 | Medical Cybernetics |
| 783016 | Medical Decision Making |
| 609026 | Medical Device Engineering |
| 740083 | Medical Devices |
| 745020 | Medical Diagnosis |
| 710000 | Medical Disciplines or Fields |
| 502024 | Medical Education |
| 783010 | Medical Ethics |
| 785075 | Medical Genetics |
| 409017 | Medical Geography |
| 706030 | Medical Imaging |
| 710138 | Medical Informatics |
| 735015 | Medical Instrumentation |
| 740000 | Medical Intervention Agents |
| 745000 | Medical Intervention Methods |
| 1103003 | Medical Libraries |
| 750000 | Medical Materials or Products |
| 755000 | Medical Methodologies or Procedures |
| 785508 | Medical Microbiology |
| 1270015 | Medical Physics |
| 1270025 | Medical Physics, Radiation Standards |
| 740007 | Medical Screening |
| 417025 | Medical Sociology |
| 735000 | Medical Technology |
| 745084 | Medical Treatment |
| 710080 | Medicinal Chemistry |
| 309009 | Medieval History |
| 312007 | Medieval Language or Literature |
| 309040 | Medieval Studies |
| 112186 | Mediterranean |
| 110013 | Mediterranean Sea |
| 109015 | Melanesia |
| 710083 | Membrane Electrochemistry |
| 790005 | Membrane Structure or Function |
| 1002079 | Membrane Transport |
| 760044 | Membranes |
| 715518 | Meningitis |
| 775038 | Menopause |
| 730094 | Mens Health |
| 775040 | Menstruation |
| 715072 | Mental Depression |
| 715129 | Mental Disorders |
| 715095 | Mental Health |
| 730096 | Mental Health Services |
| 414021 | Mental Measurement USE: Quantitative Psychology |
| 715052 | Mesothelioma |
| 1002547 | Messenger RNA |
| 1002007 | Metabolic Biology |
| 715135 | Metabolic Disorders |
| 765503 | Metabolic Engineering |
| 715134 | Metabolic Syndrome |
| 765020 | Metabolism |
| 760046 | Metabolites |
| 1016105 | Metal Ion Sensors |
| 1009166 | Metallography |
| 606085 | Metallurgical Engineering |
| 1009012 | Metallurgical Extractive Processes |
| 1009011 | Metallurgy |
| 1240015 | Metals or Alloys |
| 317501 | Metaphysics |
| 413022 | Metapopulation |
| 715519 | Metastasis |
| 1001005 | Meteorology |
| 1265060 | Methane |
| 1265065 | Methanol |
| 755066 | Methods of Drug Delivery |
| 502025 | Metric Education |
| 112089 | Mexico |
| 1002103 | Microbial Degradation |
| 1002023 | Microbial Ecology |
| 765505 | Microbial Pathogenesis |
| 1002091 | Microbial Processes |
| 1002027 | Microbiology |
| 408010 | Microeconomics |
| 609038 | Microelectromechanical Systems (MEMS) |
| 607010 | Microelectronics |
| 608018 | Microfabrication |
| 609097 | Microfluidics |
| 1015973 | Microgravity or Reduced Gravity Experiments |
| 609015 | Micromachining |
| 755506 | Micromanipulation |
| 1002095 | Micronutrients |
| 1004033 | Microprocessors |
| 601018 | Microsatellites |
| 1002596 | Microscopic Anatomy USE: Histology |
| 1013039 | Microscopy |
| 1016110 | Microwave Circuit Technology |
| 607011 | Microwave Theory |
| 103004 | Middle East |
| 403068 | Middle Eastern studies |
| 504004 | Middle School Education |
| 785090 | Midwifery |
| 416022 | Migrant Services |
| 201041 | Migrant Workers |
| 413003 | Migration |
| 201042 | Migratory Animals and Birds |
| 1015690 | Military Aircraft |
| 309080 | Military History |
| 801023 | Military Law |
| 1104003 | Military Logistics |
| 1104030 | Military Personnel Equipment |
| 1104004 | Military Personnel Selection and Training |
| 1104000 | Military Sciences and Technology |
| 1016212 | Military Seacraft |
| 1104021 | Military Tactics or Combat |
| 1104022 | Military Textiles |
| 1016186 | Military Training Technology |
| 1104023 | Military Vehicle Technology |
| 607032 | Millimeter Waves |
| 730006 | Mind Body Relationship |
| 1005035 | Mineral Crystallography |
| 765030 | Mineral Metabolism |
| 1005015 | Mineral Resources |
| 1005016 | Mineralogy |
| 1104031 | Mines and Mine Detection |
| 1016122 | Miniaturization |
| 1011000 | Mining |
| 610000 | Mining Engineering |
| 801024 | Mining Law |
| 403013 | Minorities and Disadvantaged |
| 508000 | Minority Education |
| 730058 | Minority Health |
| 730097 | Minority Health Services |
| 715238 | Minority Mental Health |
| 901030 | Minority or Women-Owned Business |
| 411021 | Minority Policy |
| 416017 | Minority Social or Economic Services |
| 715132 | Miscarriage |
| 1104032 | Missile Defense Technology |
| 1016115 | Missile Trajectories |
| 765502 | Mitosis |
| 1008125 | Mixed Layer Processes |
| 320017 | Mixed Media |
| 1016120 | Mobility Fuels Technology |
| 303018 | Modern Art |
| 309010 | Modern History |
| 312008 | Modern Language or Literature |
| 112181 | Moldova |
| 1003032 | Molecular Biochemistry |
| 1002008 | Molecular Biology |
| 760000 | Molecular Cellular Entities |
| 1003062 | Molecular Chemistry |
| 755041 | Molecular Cloning |
| 1003023 | Molecular Dynamics |
| 785056 | Molecular Epidemiology |
| 1002058 | Molecular Genetics |
| 1002098 | Molecular Marine Biology |
| 1002562 | Molecular Microbiology |
| 785509 | Molecular Oncology |
| 785501 | Molecular Pathology |
| 1250040 | Molecular Physics |
| 755042 | Molecular Probes |
| 1002101 | Molecular Recognition |
| 1013511 | Molecular Spectroscopy |
| 1002561 | Molecular Systematics |
| 1002563 | Molecular Virology |
| 1002102 | Mollusks |
| 112090 | Monaco |
| 112091 | Mongolia |
| 760045 | Monoclonal Antibodies |
| 607080 | Monolithic Circuits |
| 112150 | Montserrat |
| 715593 | Mood Disorders USE: Affective Disorders |
| 1015695 | Moon - Earth Trajectories |
| 1008130 | Mooring |
| 112092 | Morocco |
| 1002059 | Morphogenesis |
| 1002118 | Morphology |
| 1015540 | Motion Guidance |
| 1015700 | Motion Stability |
| 112093 | Mozambique |
| 706596 | MRI USE: Magnetic Resonance Imaging |
| 503039 | Multicultural Education |
| 1009115 | Multilayer Composites |
| 405015 | Multimedia or Interactive Communications Technology |
| 901082 | Multinational Corporations |
| 715246 | Multiple Sclerosis |
| 1015705 | Multistage Rocket Vehicles |
| 1255040 | Municipal Energy Management |
| 1255015 | Municipal Energy Use |
| 1255045 | Municipal Energy Waste Management |
| 412022 | Municipal Government |
| 1104007 | Munitions |
| 715136 | Muscle Disorders |
| 1002087 | Muscle Structure or Function |
| 715242 | Muscular Dystrophy |
| 715520 | Musculoskeletal Diseases |
| 705050 | Musculoskeletal System |
| 314012 | Museum Exhibit Design |
| 314010 | Museum Funding |
| 314000 | Museums |
| 315000 | Music |
| 316003 | Music Composition |
| 316004 | Music Conducting |
| 305003 | Music Criticism |
| 502026 | Music Education |
| 309005 | Music History |
| 316017 | Musical Recording or Distribution |
| 315001 | Musicology |
| 1002028 | Mutagenesis |
| 1002077 | Mutation |
| 112019 | Myanmar |
| 715254 | Myasthenia Gravis |
| 1002029 | Mycology |
| 112094 | Namibia |
| 1016214 | Nanoelectronics |
| 1016215 | Nanomechanics |
| 1016216 | Nanostructured Materials |
| 1016121 | Nanotechnology |
| 715592 | Narcolepsy USE: Myasthenia Gravis |
| 760055 | Narcotics |
| 411002 | National Planning or Policy |
| 1104017 | National Security |
| 412010 | Nationalism |
| 309081 | Native American History |
| 312506 | Native American Language or Literature |
| 418006 | Native Justice System |
| 312019 | Native Languages |
| 403014 | Native North Americans |
| 203024 | Natural & Organic Foods |
| 1000000 | Natural and Physical Sciences, Mathematics and Technology |
| 1260095 | Natural Gas |
| 1260060 | Natural Gas Combustion |
| 1018001 | Natural History |
| 765047 | Natural History of a Disease |
| 765597 | Natural Immunity USE: Disease Resistance |
| 1004069 | Natural Language Programming |
| 765000 | Natural Processes Health Safety Medical |
| 750025 | Natural Products |
| 1007022 | Natural Resources |
| 801051 | Natural Resources Law |
| 1007023 | Natural Resources Management |
| 1018000 | Natural Sciences |
| 109035 | Nauru |
| 606003 | Naval Architecture |
| 1015710 | Navigation |
| 607012 | Navigation and Guidance Systems |
| 1001030 | Near Earth Space Particles or Fields |
| 1008135 | Nearshore Processes |
| 1002060 | Nematology |
| 715137 | Neonatal Disorders |
| 785502 | Neonatology |
| 715036 | Neoplasm USE: Cancer or Carcinogenesis |
| 112095 | Nepal |
| 785095 | Nephrology |
| 760052 | Nerve Cells USE: Neurons |
| 705055 | Nervous System |
| 112096 | Netherlands |
| 109001 | Netherlands Antilles |
| 1004055 | Networking |
| 740050 | Neural Prostheses |
| 745047 | Neural Stimulation |
| 785100 | Neuroanatomy |
| 1002179 | Neurobiology |
| 1003063 | Neurochemistry |
| 715521 | Neurodegenerative Diseases |
| 785105 | Neuroendocrinology |
| 1002555 | Neuroethology |
| 1002553 | Neurogenesis |
| 706053 | Neuroimaging |
| 710086 | Neuroimmunology |
| 715138 | Neurological Disorders |
| 785110 | Neurology |
| 715140 | Neuromuscular Diseases |
| 760051 | Neurons |
| 785511 | Neuropathology |
| 760510 | Neuropeptides |
| 785115 | Neuropharmacology |
| 710085 | Neurophysiology |
| 785186 | Neuropsychiatry |
| 414502 | Neuropsychology |
| 785503 | Neuropsychopharmacology |
| 1002030 | Neuroscience |
| 785120 | Neurosurgery |
| 725039 | Neurotoxicology |
| 760050 | Neurotransmitters |
| 1013080 | Neutron Scattering |
| 316015 | New Music |
| 112097 | New Zealand |
| 113017 | Newly Independent States (NIS) |
| 313005 | Newspapers |
| 112098 | Nicaragua |
| 404505 | Nicotine |
| 112099 | Niger |
| 112100 | Nigeria |
| 1002084 | Nitrogen Fixation |
| 1015720 | Noise |
| 1007007 | Noise Pollution |
| 1015725 | Noise Prediction (Aircraft) |
| 1015730 | Noise Reduction |
| 113006 | Non Aligned or Third World Nations |
| 203003 | Non-Alcoholic Beverages |
| 1270135 | Non-Breeder Reactors |
| 801066 | Non-Criminal Law |
| 304003 | Nonfiction |
| 312009 | Nonfictional Literature |
| 1016217 | Nonlethal Weapons |
| 1013057 | Nonlinear Dynamics |
| 1013505 | Nonlinear Optics |
| 1002067 | Nonnative Species |
| 1013060 | Non-Neutral Plasma |
| 1007509 | Nonpoint Source Pollution |
| 901078 | Nonprofit Management |
| 901038 | Nonprofit Organizations |
| 414050 | Nonverbal Communication |
| 407007 | Nonviolent Crime |
| 303019 | Non-Western Art |
| 309051 | Non-Western History |
| 105000 | North America |
| 309052 | North American History |
| 113008 | North Atlantic Treaty Org (Nato) |
| 112074 | North Korea |
| 110014 | North Sea |
| 108002 | Northern Hemisphere |
| 112101 | Norway |
| 312038 | Norwegian Language or Literature |
| 715131 | Nosocomial Infections |
| 607044 | Novel Device Concepts |
| 1015735 | Nuclear Astrophysics |
| 1270120 | Nuclear Breeder Reactors |
| 1003011 | Nuclear Chemistry |
| 609027 | Nuclear Engineering |
| 1270035 | Nuclear Explosion Detection |
| 1012001 | Nuclear Fission |
| 1270130 | Nuclear Fuel Cycle |
| 1270045 | Nuclear Fuel Enrichment |
| 1270055 | Nuclear Fuel Feed Processing |
| 1270170 | Nuclear Fuel Handling |
| 1270060 | Nuclear Fuel Reprocessing |
| 1270062 | Nuclear Fuel Safeguards |
| 1270095 | Nuclear Fuel Waste Disposal |
| 1270085 | Nuclear Fuel Waste Management |
| 1270090 | Nuclear Fuel Waste Processing |
| 1270065 | Nuclear Fuels Storage |
| 1270075 | Nuclear Fuels Transport |
| 1270080 | Nuclear Fuels Uranium Reserves |
| 1270040 | Nuclear Fuels, Depleted Uranium |
| 1270070 | Nuclear Fuels, Thorium Reserves |
| 1270100 | Nuclear Fusion, Kinetics |
| 1013056 | Nuclear Magnetic Resonance |
| 1270236 | Nuclear Materials Management |
| 1230035 | Nuclear Materials Monitoring |
| 606021 | Nuclear Materials Transport |
| 710090 | Nuclear Medicine |
| 606022 | Nuclear or Radioactive Waste Disposal |
| 1012003 | Nuclear or Radioactive Wastes |
| 1013023 | Nuclear Physics |
| 1270237 | Nuclear Power Plants |
| 1270125 | Nuclear Power, Construction |
| 1270150 | Nuclear Reactor Control Systems |
| 1270185 | Nuclear Reactor Safety |
| 1270190 | Nuclear Reactor Theory |
| 1270175 | Nuclear Reactor, Plutonium Production |
| 1270180 | Nuclear Reactor, Propulsion |
| 1270145 | Nuclear Reactors |
| 1012004 | Nuclear Safety |
| 1012000 | Nuclear Science |
| 1270000 | Nuclear Science and Technology |
| 1104009 | Nuclear Strategy |
| 404059 | Nuclear Survivability |
| 609028 | Nuclear Technology |
| 1104005 | Nuclear Warfare |
| 1270203 | Nuclear Weapons Design |
| 1270204 | Nuclear Weapons Safety |
| 1270200 | Nuclear Weapons Testing |
| 1002548 | Nucleic Acid Hybridization |
| 755045 | Nucleic Acid Sequencing |
| 790010 | Nucleic Acid Structure or Function |
| 760053 | Nucleic Acids |
| 765031 | Nucleotide Metabolism |
| 1010009 | Number Theory |
| 1010010 | Numerical Analysis |
| 1010599 | Numerical Models USE: Mathematical Models |
| 321000 | Numismatics |
| 785125 | Nurse Practitioners |
| 201043 | Nursery Stock |
| 785130 | Nursing |
| 502027 | Nursing Education |
| 730060 | Nursing Homes |
| 715522 | Nutrition Disorders |
| 502028 | Nutrition Education |
| 710095 | Nutrition or Dietetics |
| 1002184 | Nutritional Physiology |
| 203015 | Nuts |
| 715145 | Obesity |
| 1004091 | Object-Oriented Computing |
| 785135 | Obstetrics or Gynecology |
| 725020 | Occupational Health |
| 725035 | Occupational Hygiene |
| 415002 | Occupational Therapy |
| 1008140 | Ocean Acoustics |
| 1008145 | Ocean Chemistry |
| 1275030 | Ocean Energy Systems |
| 1011001 | Ocean Mining |
| 1008235 | Ocean Modeling |
| 1008150 | Ocean Optics |
| 606076 | Ocean Resources Extraction |
| 1016125 | Ocean Surveillance |
| 1005029 | Ocean-Atmosphere Interaction |
| 106000 | Oceania (Including Australia) |
| 1008003 | Oceanographic Facilities |
| 1008004 | Oceanography |
| 110000 | Oceans and Seas |
| 1002107 | Odorant Discrimination |
| 901004 | Office Automation |
| 608012 | Offset Printing |
| 606074 | Offshore Platforms and Structures |
| 1260065 | Oil Shale or Tar Sand Combustion |
| 1260100 | Oil Shales or Tar Sands |
| 203016 | Oils & Fats |
| 203017 | Oilseeds |
| 403024 | Older People |
| 705071 | Olfaction or Smell |
| 112102 | Oman |
| 760054 | Oncogenes |
| 785140 | Oncology |
| 785141 | Oncology Nursing |
| 801040 | Open Access |
| 316007 | Opera or Musical Theatre |
| 1010011 | Operations Research |
| 785145 | Ophthalmology |
| 715126 | Opportunistic Infections |
| 607013 | Optical Communications |
| 1015740 | Optical Equipment |
| 1009080 | Optical Materials |
| 1013017 | Optics |
| 1010041 | Optimization |
| 1013599 | Optoelectronics USE: Electro-Optics |
| 785150 | Optometry |
| 715053 | Oral Cancer |
| 715148 | Oral Diseases |
| 309011 | Oral History |
| 312131 | Oral Literature |
| 601015 | Orbital Mechanics |
| 1015750 | Orbital Position Estimation |
| 1015760 | Orbits |
| 316016 | Orchestral Music |
| 1104006 | Ordnance |
| 745065 | Organ Transplantation |
| 1003012 | Organic Chemistry |
| 1009120 | Organic Coatings |
| 1235005 | Organic Geochemistry |
| 1002050 | Organism Cloning |
| 113010 | Organization of American States (OAS) |
| 417003 | Organizational Theory and Behavior |
| 503010 | Organizational Theory and Behavior (Education) |
| 407020 | Organized Crime |
| 1003030 | Organometallic Chemistry |
| 1003033 | Organometallic Chemistry, Main Group |
| 780025 | Organs |
| 1002031 | Ornithology |
| 715149 | Orphan Rare Diseases |
| 785504 | Orthodontics |
| 785155 | Orthopedics |
| 1015765 | Oscillations |
| 715534 | Osteoarthritis |
| 715243 | Osteogenesis Imperfecta |
| 785225 | Osteology or Osteopathy |
| 715147 | Osteoporosis |
| 1100000 | Other Disciplines |
| 715529 | Otitis |
| 785160 | Otolaryngology |
| 785161 | Otology |
| 755504 | Outcomes Research (Medical) |
| 770020 | Outpatient |
| 715530 | Ovarian Cancer |
| 765504 | Oxidative Stress |
| 1015770 | Oxygen - Hydrocarbon Rocket Engines |
| 1007039 | Ozone |
| 109010 | Pacific Islands Trust Territory |
| 110015 | Pacific Ocean |
| 112200 | Pacific Rim |
| 608017 | Packaging or Packaging Technologies |
| 715150 | Pain |
| 745599 | Pain Management USE: Palliative Care |
| 320006 | Painting |
| 112103 | Pakistan |
| 109045 | Palau |
| 1002180 | Paleobiology |
| 1002532 | Paleobotany |
| 1005026 | Paleoecology |
| 1005017 | Paleontology |
| 745048 | Palliative Care |
| 1005049 | Palynology |
| 112104 | Panama |
| 705504 | Pancreas |
| 715054 | Pancreatic Cancer |
| 740055 | Pancreatic Prostheses |
| 112105 | Papua New Guinea |
| 112106 | Paraguay |
| 1004066 | Parallel Algorithms |
| 1245010 | Parallel Computer Architecture |
| 1004079 | Parallel Processing |
| 1004078 | Parallel Programming |
| 715247 | Paralysis |
| 414010 | Parapsychology |
| 1002032 | Parasitology |
| 502044 | Parent Education |
| 503020 | Parent Participation |
| 710135 | Parenteral Drugs |
| 785505 | Parenteral Nutrition |
| 715248 | Parkinsons Disease |
| 901033 | Parks and Recreation Management |
| 1010019 | Partial Differential Equations |
| 1013088 | Particle Accelerators |
| 1013506 | Particle Detectors |
| 1013024 | Particle Physics |
| 1008155 | Particulate Optics |
| 1015775 | Passenger Aircraft |
| 1009125 | Passivity and Inhibition |
| 801025 | Patents, Copyrights, Trademarks |
| 1002181 | Pathobiology |
| 765033 | Pathogenesis |
| 785165 | Pathology |
| 765035 | Pathophysiology |
| 730065 | Patient Care and Education |
| 730104 | Patient Care Planning |
| 770000 | Patient or Volunteer Classification |
| 725024 | Patient Safety |
| 1004022 | Pattern Recognition |
| 606058 | Pavement Management System |
| 606023 | Pavements |
| 1105000 | Peace, Disarmament, or Amnesty |
| 510000 | Pedagogy USE: Education |
| 785156 | Pediatric Surgery |
| 785170 | Pediatrics |
| 201069 | Pedology USE: Soil Sciences |
| 407001 | Penology |
| 770010 | People with Disabilities |
| 760060 | Peptides |
| 316000 | Performing Arts |
| 755507 | Perfusion or Reperfusion |
| 715155 | Perinatal Disorders |
| 775036 | Perinatal Health |
| 785506 | Perinatology |
| 715157 | Periodontal Diseases |
| 785175 | Periodontics |
| 901503 | Personal Finance |
| 740008 | Personalized Medicine |
| 1015780 | Perturbation Theory |
| 112107 | Peru |
| 201044 | Pest Management |
| 201045 | Pesticides |
| 1260105 | Petroleum |
| 1003013 | Petroleum Chemistry |
| 1260070 | Petroleum Combustion |
| 611000 | Petroleum Engineering |
| 1005018 | Petroleum Science |
| 1005019 | Petrology |
| 1005046 | Petrophysics |
| 740025 | Pharmaceuticals |
| 710136 | Pharmacoeconomics |
| 1002549 | Pharmacogenetics |
| 740084 | Pharmacokinetics |
| 710100 | Pharmacology |
| 745049 | Pharmacotherapy |
| 710130 | Pharmacy |
| 502045 | Pharmacy Education |
| 1015785 | Phase Transformations |
| 1002533 | Phenotype |
| 112108 | Philippines |
| 312133 | Philosophical Literature |
| 317000 | Philosophy |
| 312123 | Philosophy of Language |
| 311001 | Philosophy of Law USE: Jurisprudence |
| 1010061 | Philosophy of Mathematics |
| 1014012 | Philosophy of Science |
| 414058 | Phobias |
| 410003 | Phonology |
| 1003510 | Phosphorylation |
| 710103 | Photobiology |
| 1220055 | Photochemistry |
| 607045 | Photoelectric Cells |
| 612000 | Photogrammetry |
| 313003 | Photography |
| 1013089 | Photonics |
| 1002033 | Photosynthesis |
| 1275085 | Photovoltaic Cells |
| 1240020 | Photovoltaic Materials |
| 607033 | Photovoltaics |
| 1002534 | Phycology |
| 1002054 | Phylogenetics |
| 401002 | Physical Anthropology |
| 1002182 | Physical Biology |
| 1003014 | Physical Chemistry |
| 502029 | Physical Education |
| 745087 | Physical Fitness |
| 1005004 | Physical Geography |
| 1005009 | Physical Geology |
| 775015 | Physical Growth or Retardation |
| 1270205 | Physical Isotope Separation |
| 785180 | Physical Medicine and Rehabilitation |
| 1009167 | Physical Metallurgy |
| 1008006 | Physical Oceanography |
| 1240025 | Physical Properties |
| 1013000 | Physical Sciences |
| 1013012 | Physical Sciences Instrumentation |
| 775037 | Physical Senses, Other |
| 415003 | Physical Therapy |
| 1003064 | Physical-Organic Chemistry |
| 1013018 | Physics |
| 706040 | Physiological Controls and Systems |
| 735055 | Physiological Monitoring Technology |
| 775000 | Physiological or Development Process |
| 414011 | Physiological Psychology |
| 1002034 | Physiology |
| 765036 | Physiopathology USE: Pathophysiology |
| 1002535 | Phytochemistry |
| 1009130 | Piezoelectric or Electrostrictive Mechanisms |
| 705060 | Placenta |
| 1001012 | Planetary Atmospheres |
| 1015795 | Planetary Environments |
| 1015645 | Planetary Exploration |
| 1005043 | Planetary Geology |
| 1015800 | Planetary Orbits |
| 1013030 | Planetology |
| 411000 | Planning or Policy Studies |
| 1002035 | Plant Breeding |
| 1002036 | Plant Diseases |
| 1002536 | Plant Ecology |
| 1002037 | Plant Genetics |
| 1215020 | Plant Genome |
| 1002038 | Plant Nutrition |
| 201046 | Plant or Soil Nutrient Bioavailability |
| 1002039 | Plant Physiology or Morphology |
| 1002040 | Plant Sciences |
| 1002064 | Plant Taxonomy |
| 1002041 | Plant Virology |
| 607015 | Plasma Electronics |
| 1270105 | Plasma Fusion |
| 1013025 | Plasma Physics |
| 1002073 | Plasmids |
| 785230 | Plastic Surgery |
| 609029 | Plasticity |
| 1009031 | Plastics |
| 503021 | Play |
| 304012 | Playwriting or Screenwriting |
| 785227 | Podiatry |
| 312010 | Poetic Language or Literature |
| 304004 | Poetry |
| 725025 | Poison Control |
| 112109 | Poland |
| 1005047 | Polar Science |
| 801036 | Police Corruption |
| 312039 | Polish Language or Literature |
| 412005 | Political Behavior |
| 408011 | Political Economy |
| 409005 | Political Geography |
| 412039 | Political History |
| 412028 | Political Methodology |
| 412040 | Political Participation |
| 412020 | Political Parties |
| 412041 | Political Philosophy |
| 412042 | Political Right |
| 412000 | Political Science |
| 417008 | Political Sociology |
| 412006 | Political Theory |
| 501004 | Politics of Education |
| 201047 | Pollen and Pollination |
| 404021 | Polls & Surveys |
| 1225010 | Pollution Control |
| 1003039 | Polymer Chemistry |
| 1009013 | Polymer Science |
| 1002537 | Polymerase Chain Reaction |
| 1009008 | Polymeric Materials |
| 1009096 | Polymorphous Materials |
| 109011 | Polynesia |
| 1010505 | Polynomials |
| 318048 | Polytheism |
| 201509 | Pomology |
| 309061 | Popular Culture |
| 316019 | Popular Music |
| 413004 | Population Biology |
| 413005 | Population Control |
| 413009 | Population Forecasting |
| 413015 | Population Geography |
| 413000 | Population Sciences |
| 413020 | Population Studies - Developing Countries |
| 413007 | Population Transfers |
| 413023 | Population Viability Analysis |
| 112110 | Portugal |
| 312040 | Portuguese Language or Literature |
| 403506 | Postcolonial Theory |
| 715531 | Posttraumatic Stress Disorder |
| 1010506 | Potential Theory |
| 203018 | Poultry Products |
| 201048 | Poultry Science |
| 404013 | Poverty and the Poor |
| 1255070 | Power Plants |
| 1001006 | Precipitation |
| 201061 | Precision Farming |
| 1013081 | Precision or Measurement Science |
| 504010 | Precollegiate Education - Art |
| 504011 | Precollegiate Education - Bilingual |
| 504012 | Precollegiate Education - Economics |
| 504013 | Precollegiate Education - English |
| 504014 | Precollegiate Education - Health |
| 504015 | Precollegiate Education - Humanities |
| 504016 | Precollegiate Education - Minority |
| 504017 | Precollegiate Education - Science or Mathematics |
| 504018 | Precollegiate Education - Social Sciences |
| 504019 | Precollegiate Education - Special Education |
| 504020 | Precollegiate Education - Vocational |
| 309053 | Pre-Columbian Studies |
| 775020 | Pregnancy |
| 715160 | Pregnancy Disorders |
| 401017 | Prehistoric Era |
| 715161 | Premenstrual Syndrome--PMS |
| 730067 | Prenatal Care |
| 775025 | Prenatal Factors |
| 755050 | Preservation of Organs or Tissue |
| 113021 | President's Emergency Plan for AIDS Relief (PEPFAR) |
| 745050 | Preventive Dentistry |
| 745055 | Preventive Medicine |
| 901036 | Price Change |
| 1002191 | Primatology |
| 405002 | Print Media |
| 607047 | Printed Circuits |
| 320007 | Printmaking |
| 730068 | Prison Health |
| 501005 | Private Schools |
| 1010012 | Probability |
| 503501 | Problem Based Learning |
| 901053 | Problem Solving (Business) |
| 605001 | Process Development Engineering |
| 1270140 | Process Heat Reactors |
| 605016 | Process Simulation and Control |
| 201049 | Production Economics and Management (Agriculture) |
| 608013 | Production Engineering |
| 901062 | Production or Operations Management |
| 505500 | Professional Development |
| 730100 | Program Evaluation (health sciences) |
| 404040 | Program Evaluation (social sciences) |
| 1004041 | Program Verification |
| 901084 | Project Management |
| 1015815 | Propellant Combustion |
| 1015810 | Propellant Properties |
| 1015805 | Propellents |
| 801039 | Property |
| 735502 | Prophylactics (Medical) |
| 609030 | Propulsion |
| 1015825 | Propulsion System Performance |
| 609085 | Propulsive Flows |
| 760065 | Prostaglandins |
| 715280 | Prostate Cancer |
| 740070 | Prostheses and Implants |
| 1002538 | Protein Engineering |
| 1003511 | Protein Folding |
| 765032 | Protein Metabolism |
| 1002094 | Protein Structure |
| 1002093 | Protein Synthesis |
| 760070 | Proteins and Macromolecules |
| 1002119 | Proteomics |
| 785226 | Psychiatric-Mental Health Nursing |
| 785185 | Psychiatry |
| 414071 | Psychoanalysis |
| 414012 | Psychobiology |
| 414020 | Psychodynamics |
| 410006 | Psycholinguistics |
| 414000 | Psychology |
| 414024 | Psychology of Abused Children |
| 414026 | Psychology of Abused Spouses |
| 414034 | Psychology of Aging |
| 414046 | Psychology of Exceptional Children |
| 414052 | Psychology of Reading |
| 414060 | Psychology of Women |
| 710106 | Psychoneuroimmunology |
| 710105 | Psychopathology |
| 414027 | Psychopharmacology |
| 414506 | Psychophysics |
| 414599 | Psychophysiology USE: Physiological Psychology |
| 715162 | Psychosis |
| 715241 | Psychosomatic Disorders |
| 745060 | Psychotherapy |
| 775026 | Puberty |
| 404061 | Public Access Programs for People with Disabilities |
| 901037 | Public Administration |
| 419000 | Public Affairs |
| 419003 | Public Affairs Planning Policy |
| 501006 | Public Education |
| 901054 | Public Finance |
| 801059 | Public Finance Law |
| 730070 | Public Health |
| 801030 | Public Health Law |
| 411022 | Public Land Use |
| 1103030 | Public Libraries |
| 404506 | Public Opinion |
| 411599 | Public Planning USE: Public Policy |
| 411003 | Public Policy |
| 606055 | Public Policy Systems Analysis |
| 901039 | Public Relations |
| 801057 | Public Safety Law |
| 405012 | Public Television or Radio Stations Support |
| 419007 | Public Transportation |
| 801053 | Public Utilities Law |
| 405013 | Publishing |
| 715165 | Pulmonary Diseases |
| 607505 | Pulsed Power |
| 901040 | Purchasing |
| 1220035 | Pyrolysis Chemistry |
| 1016130 | Pyrotechnic Devices |
| 112111 | Qatar |
| 404045 | Qualitative Methods (social sciences) |
| 608014 | Quality Control Engineering |
| 700001 | Quality of Life |
| 416023 | Quality of Life Program |
| 901041 | Quality or Product Control |
| 201502 | Quantitative Genetics |
| 414013 | Quantitative Psychology |
| 1013063 | Quantum Chaos |
| 1003020 | Quantum Chemistry |
| 607077 | Quantum Electronics |
| 1013507 | Quantum Field Theory |
| 1013040 | Quantum Mechanics |
| 1013082 | Quantum Physics |
| 607083 | Quantum Structures |
| 1004058 | Queuing |
| 404033 | Racial Harassment |
| 404507 | Racial Issues |
| 404014 | Racism or Race Relation |
| 607016 | Radar |
| 1015835 | Radar Approach Control |
| 1015840 | Radar Attenuation |
| 1015845 | Radar Detection |
| 1015850 | Radar Navigation |
| 607049 | Radar Systems |
| 1015855 | Radar Tracking |
| 1270030 | Radiation Calibration |
| 1220040 | Radiation Chemistry |
| 1215025 | Radiation Effects |
| 725015 | Radiation Effects (Medical) |
| 1270215 | Radiation Effects On Instrumentation |
| 1240035 | Radiation Effects on Materials |
| 607037 | Radiation Hardening |
| 1013043 | Radiation Heat Transfer |
| 1270220 | Radiation Instrumentation |
| 785507 | Radiation Oncology |
| 1013026 | Radiation Physics |
| 1270210 | Radiation Shielding Physics |
| 1270225 | Radiation Sources |
| 1270005 | Radiation Technology |
| 313004 | Radio |
| 1013076 | Radio Astronomy |
| 1015860 | Radio Communication |
| 1240040 | Radioactive Materials |
| 1002009 | Radiobiology |
| 401014 | Radiocarbon Dating |
| 1220060 | Radiochemistry |
| 706054 | Radiography |
| 710512 | Radioimmunoassay |
| 1270227 | Radioisotopes |
| 785190 | Radiology |
| 1230040 | Radiometry |
| 1215030 | Radionuclide Effects |
| 1270228 | Radiophorus Energy |
| 1013031 | Radiosources, Infrared, X-ray, Gamma Ray |
| 745062 | Radiotherapy |
| 1215033 | Radon |
| 606071 | Rail Transportation |
| 1016135 | Ramjet or Scramjet Propulsion Systems |
| 1010045 | Random Fields |
| 607017 | Range and Tracking Systems |
| 201050 | Range Management |
| 404015 | Rape or Sexual Abuse |
| 605018 | Reaction Engineering |
| 1003019 | Reaction Kinetics |
| 1270165 | Reactor Fuel Elements |
| 502030 | Reading Education |
| 901042 | Real Estate |
| 1004047 | Real-Time Computing |
| 760075 | Receptors |
| 407013 | Recidivism |
| 760080 | Recombinant DNA |
| 1015870 | Recoverable Spacecraft |
| 1106000 | Recreation and Leisure Studies |
| 415010 | Recreational Therapy |
| 1007014 | Recycling |
| 110016 | Red Sea |
| 416024 | Refugee or Immigrant Services |
| 403015 | Refugees |
| 408012 | Regional Economics |
| 307007 | Regional or Urban Design |
| 411004 | Regional Planning or Policy |
| 114000 | Regions of the United States |
| 780030 | Registries |
| 1010034 | Regression |
| 412002 | Regulation |
| 1002010 | Regulatory Biology |
| 407018 | Rehabilitation of Criminals |
| 415000 | Rehabilitation or Therapy |
| 1013032 | Relativity |
| 1013512 | Relaxation Phenomenon |
| 608015 | Reliability Engineering |
| 502047 | Religious Education |
| 309057 | Religious History |
| 312134 | Religious Literature |
| 318000 | Religious Studies |
| 507006 | Remedial Education |
| 1005020 | Remote Sensing |
| 1016140 | Remote Sensing Technology |
| 1015875 | Remotely Piloted Vehicles |
| 312011 | Renaissance Language or Literature |
| 309012 | Renaissance Period |
| 309041 | Renaissance Studies |
| 1275000 | Renewable Energy |
| 1275035 | Renewable Energy Conversion Systems |
| 1275040 | Renewable Energy Power Plants |
| 1275045 | Renewable Energy Resources |
| 1002042 | Reproduction |
| 1002502 | Reproductive Biology |
| 715167 | Reproductive Disorders |
| 710110 | Reproductive Endocrinology |
| 730102 | Reproductive Health Services |
| 710115 | Reproductive Physiology |
| 412044 | Reproductive Rights |
| 901031 | Research & Development--R&D |
| 1014040 | Research Methodology |
| 1255020 | Residential Energy Use |
| 607063 | Resistors |
| 1003028 | Resonance Spectroscopy |
| 715277 | Respiratory Diseases |
| 705065 | Respiratory System |
| 745507 | Respiratory Therapy |
| 319000 | Restoration and Preservation |
| 901504 | Retail Industry |
| 715228 | Retinitis Pigmentosa |
| 901100 | Retirement Studies |
| 760090 | Retrovirus |
| 1015880 | Reusable Spacecraft |
| 715260 | Reye's Syndrome |
| 609031 | Rheology |
| 312503 | Rhetoric |
| 715170 | Rheumatic Diseases |
| 785195 | Rheumatology |
| 715275 | Rhinitis |
| 1002595 | Ribonucleic Acid USE: RNA |
| 1007510 | Riparian Ecosystem |
| 411005 | Risk Factor Analysis |
| 404510 | Rites & Ceremonies |
| 1002080 | River or Lake Studies USE: Limnology |
| 1002539 | RNA |
| 607019 | Robotics |
| 606024 | Rock Mechanics |
| 1015974 | Rocket Propulsion or Fuels |
| 1015890 | Rocket Vehicles |
| 112112 | Romania |
| 312014 | Romantic Language or Literature |
| 601006 | Rotary Wing Aircraft |
| 1015900 | Rotor Dynamics |
| 403021 | Runaway Youth |
| 901099 | Rural Development |
| 409015 | Rural Geography |
| 730099 | Rural Health |
| 411006 | Rural Planning or Policy |
| 501007 | Rural Schools |
| 416025 | Rural Services |
| 403043 | Rural Studies |
| 112182 | Russia |
| 112183 | Russian Federation |
| 309054 | Russian History |
| 312042 | Russian Language or Literature |
| 403069 | Russian Studies |
| 112113 | Rwanda |
| 715175 | Safety |
| 1225020 | Safety Engineering |
| 109050 | Saint Kitts and Nevis |
| 112114 | Saint Lucia |
| 109052 | Saint Vincent and the Grenadines |
| 1007514 | Salinity |
| 109012 | Samoa |
| 1010039 | Sampling Theory |
| 112230 | San Marino |
| 606025 | Sanitary Engineering |
| 606026 | Sanitary Engineering, Environmental Impacts |
| 112115 | Sao Tome and Principe |
| 1015910 | Satellite Attitude Control |
| 607055 | Satellite Communications |
| 1015915 | Satellite Control |
| 1016145 | Satellite Detection or Classification |
| 1015920 | Satellite Doppler Positioning |
| 1015925 | Satellite Guidance |
| 1015930 | Satellite Tracking |
| 1015935 | Satellite-to-Satellite Tracking |
| 112116 | Saudi Arabia |
| 104004 | Scandinavia |
| 1013067 | Scatter or Rough Surfaces |
| 1010048 | Scattering |
| 1002111 | Scavenging and Co-Precipitation |
| 715177 | Schizophrenia |
| 501009 | School Desegregation |
| 404016 | School Food Programs |
| 730069 | School Health |
| 501010 | School Organization |
| 501002 | School Safety |
| 1014015 | Science - Humanistic Emphasis |
| 1014014 | Science and Society |
| 1014501 | Science Communication |
| 502031 | Science Education |
| 313011 | Science Journalism |
| 312135 | Science Literature |
| 1014013 | Science or Engineering Studies - Developing Countries |
| 1014002 | Science Planning or Policy |
| 1014001 | Scientific Apparatus & Instruments |
| 1014017 | Scientific Imaging |
| 715229 | Scleroderma |
| 112188 | Scotland |
| 1008236 | Scuba |
| 320008 | Sculpture |
| 110012 | Sea of Japan |
| 1008007 | Sea Water Properties |
| 203019 | Seafoods |
| 504002 | Secondary Education |
| 901508 | Securities Markets |
| 1008160 | Sediment |
| 1005028 | Sedimentary Geochemistry |
| 1005021 | Sedimentology |
| 201051 | Seed Production |
| 1008165 | Seismic Acoustics |
| 1005022 | Seismology |
| 412009 | Self Government |
| 416026 | Self-Help Projects |
| 410009 | Semantics |
| 1009015 | Semiconductors |
| 405016 | Semiotics |
| 112117 | Senegal |
| 416027 | Senior Citizen Service Programs |
| 607058 | Sensing Devices and Transducers |
| 715537 | Sensory Integration Disorders |
| 1002185 | Sensory Physiology |
| 705070 | Sensory System |
| 605007 | Separation Process |
| 1220045 | Separations Chemistry |
| 112198 | Serbia and Montenegro |
| 785200 | Serology |
| 307008 | Set Design |
| 1010023 | Set Theory |
| 309085 | Seventeenth and Eighteenth Century Studies |
| 502032 | Sex Education |
| 404018 | Sex Roles |
| 414019 | Sexual Behavior |
| 404012 | Sexual Harassment |
| 417021 | Sexuality and Sex Roles |
| 715182 | Sexually Transmitted Diseases--STD |
| 112118 | Seychelles |
| 1015938 | SH Waves |
| 312501 | Shakespeare |
| 1008170 | Shallow Water Bottom Interaction |
| 1008175 | Shelf Basin Dynamics |
| 1016150 | Ship or Aircraft Fuels |
| 1016085 | Ship or Aircraft Fuels or Fuel Technology |
| 715183 | Sickle Cell Anemia |
| 715590 | SIDS USE: Sudden Infant Death Syndrome--SIDS |
| 112119 | Sierra Leone |
| 1002086 | Sight USE: Vision |
| 312137 | Sign Language |
| 1010052 | Signal Analysis |
| 607074 | Signal Processing |
| 1002088 | Signal Transduction |
| 112120 | Singapore |
| 1275050 | Site Geology, Renewable Energy |
| 715273 | Skeletal Disease |
| 705051 | Skeletal System USE: Musculoskeletal System |
| 715056 | Skin Cancer |
| 715185 | Skin Diseases |
| 312044 | Slavic Language or Literature |
| 715502 | Sleep Apnea |
| 715187 | Sleep Disorders |
| 775039 | Sleep Studies |
| 112175 | Slovakia |
| 112184 | Slovenia |
| 901043 | Small Business |
| 1009135 | Small Structures |
| 1009136 | Smart Materials |
| 1016074 | Smartphones |
| 404019 | Smoking Behavior |
| 417041 | Social Change |
| 418007 | Social Control |
| 417030 | Social Development |
| 901059 | Social Entrepreneurship |
| 409006 | Social Geography |
| 309014 | Social History |
| 417046 | Social Justice |
| 417004 | Social Measurement and Indicators |
| 725037 | Social Medicine |
| 417029 | Social Movements |
| 404056 | Social or Behavioral Science Planning or Policy |
| 416015 | Social or Recreation Services for People with Disabilities |
| 417042 | Social Order |
| 414014 | Social Psychology |
| 404057 | Social Science - Humanistic Emphasis |
| 400000 | Social Sciences |
| 502033 | Social Sciences Education |
| 416034 | Social Security |
| 416028 | Social Service Planning or Policy |
| 416000 | Social Services |
| 404017 | Social Services Delivery |
| 417005 | Social Stratification or Mobility |
| 417043 | Social Structure |
| 416035 | Social Welfare |
| 502065 | Social Welfare or Public Affairs Education |
| 416030 | Social Welfare Planning or Policy |
| 416029 | Social Welfare Studies - Developing Countries |
| 416032 | Social Work |
| 1002043 | Sociobiology |
| 418000 | Sociolegal Studies |
| 410014 | Sociolinguistics |
| 417006 | Sociological Theory |
| 417000 | Sociology |
| 502034 | Sociology Education |
| 417019 | Sociology of Language |
| 417007 | Sociology of Science |
| 417031 | Sociology of Sex and Gender |
| 417044 | Sociology of the Family |
| 1004007 | Software |
| 1004036 | Software Engineering |
| 606028 | Soil - Structure Interaction |
| 201071 | Soil Chemistry |
| 201053 | Soil Conservation |
| 201054 | Soil Erosion |
| 201055 | Soil Genesis |
| 606027 | Soil Mechanics and Foundations |
| 201052 | Soil Sciences |
| 1013077 | Solar Astronomy |
| 1275060 | Solar Biomass Conversion |
| 1275065 | Solar Collectors |
| 1275055 | Solar Energy |
| 1225026 | Solar Energy Engineering |
| 1275070 | Solar Heat Storage |
| 609032 | Solar Heating |
| 1001035 | Solar Phenomena |
| 1275075 | Solar Photochemical Conversion |
| 1275080 | Solar Photovoltaic Conversion |
| 1013027 | Solar Physics |
| 1013033 | Solar Studies |
| 1275090 | Solar Thermoelectric Conversion |
| 1009140 | Solid - Liquid Interfaces |
| 1009145 | Solid - Solid Interfaces |
| 609033 | Solid Mechanics |
| 1015940 | Solid Propellant Rocket Engines |
| 1003041 | Solid State Chemistry |
| 607020 | Solid State Electronics |
| 1013028 | Solid State Physics |
| 112121 | Solomon Islands |
| 112122 | Somalia |
| 607052 | Sonar Systems |
| 112123 | South Africa |
| 107000 | South America |
| 112237 | South Korea |
| 112154 | South Sudan |
| 312132 | Southeast Asian Languages or Literature |
| 108003 | Southern Hemisphere |
| 113007 | Soviet Bloc |
| 1015004 | Space Exploration |
| 1015945 | Space Mechanics |
| 1015000 | Space Sciences |
| 1015005 | Space Shuttle |
| 1015948 | Space Stations |
| 1270235 | Space Warfare |
| 1016155 | Spacecraft Navigation Technology |
| 112125 | Spain |
| 312046 | Spanish Language or Literature |
| 1005027 | Spatial Data or Analysis |
| 507000 | Special Education |
| 1103031 | Special Libraries |
| 785000 | Specialties of Medical and Allied Fields |
| 1001040 | Spectral Estimation |
| 1013034 | Spectroscopy |
| 715055 | Speech and Language Disorders |
| 502035 | Speech or Communication Education |
| 710120 | Speech Pathology |
| 203020 | Spices and Flavorings |
| 715249 | Spinal Cord Diseases |
| 715188 | Spinal Cord Injury |
| 202033 | Spoilage |
| 715153 | Spongiform Encephalopathies |
| 715591 | Spontaneous Abortion USE: Miscarriage |
| 1108000 | Sports |
| 785205 | Sports Medicine |
| 414072 | Sports Psychology |
| 112126 | Sri Lanka |
| 1013083 | Standard Reference Data |
| 901061 | Startups |
| 1002522 | Statistical Ecology |
| 1013044 | Statistical Mechanics |
| 1010013 | Statistics |
| 1009164 | Steel |
| 606030 | Steel Structures |
| 1013008 | Stellar Systems |
| 760084 | Stem Cells |
| 502048 | STEM Education |
| 1003506 | Stereochemistry |
| 745075 | Sterilization |
| 760085 | Steroids |
| 715190 | Stillbirth |
| 1015950 | Stimulated Emission Devices |
| 1010033 | Stochastic Models |
| 201056 | Stockyard |
| 1003507 | Stoichiometry |
| 715057 | Stomach Cancer |
| 1008180 | Strait Dynamics |
| 1104024 | Strategic Defense Initiative (SDI) |
| 901056 | Strategic Planning |
| 1005023 | Stratigraphy |
| 1015955 | Stratospheric Warming |
| 715195 | Stress |
| 1002115 | Stress Response |
| 1013508 | String Theory |
| 715200 | Stroke |
| 606031 | Structural Analysis |
| 1002082 | Structural Biology |
| 1003065 | Structural Chemistry |
| 606032 | Structural Design |
| 606033 | Structural Dynamics |
| 606034 | Structural Engineering |
| 1005010 | Structural Geology |
| 1009105 | Structural Materials |
| 609090 | Structural Mechanics |
| 1009150 | Structural Polymers |
| 790000 | Structure or Function (Health or Safety or Medical) |
| 606035 | Structure Reliability |
| 1004505 | Structured Query Language-SQL |
| 503040 | Student Enrichment |
| 1016165 | Submarine Detection Technology |
| 1008185 | Submarine Geomorphology |
| 1016170 | Submersible Vehicles |
| 113022 | Sub-Saharan Africa |
| 404055 | Substance Abuse |
| 745080 | Substance Abuse Prevention |
| 745088 | Substance Abuse Treatment |
| 112127 | Sudan |
| 715205 | Sudden Infant Death Syndrome--SIDS |
| 203021 | Sugar |
| 404020 | Suicides & Suicide Attempts |
| 1004025 | Supercomputers |
| 1013035 | Superconductivity |
| 1250035 | Superfluidity Physics |
| 1015960 | Supersonic Aircraft |
| 1003022 | Surface Chemistry |
| 1008195 | Surface Hydrodynamic Processes |
| 1013049 | Surface Physics |
| 1009016 | Surface Science |
| 1016175 | Surface Warfare |
| 1008200 | Surface Waves |
| 1240055 | Surfaces and Interfaces |
| 605012 | Surfactants |
| 1008205 | Surfzone Waves, Turbulence |
| 785210 | Surgery |
| 785201 | Surgical Oncology |
| 112128 | Suriname |
| 607021 | Surveillance Systems |
| 606056 | Surveying and Mapping |
| 1014007 | Survival Probability |
| 1300000 | Sustainability |
| 901103 | Sustainability Management |
| 201104 | Sustainable Agriculture |
| 307010 | Sustainable Design |
| 113015 | Sustainable Development |
| 606057 | Sustainable Materials |
| 112129 | Swaziland |
| 112130 | Sweden |
| 312048 | Swedish Language or Literature |
| 112131 | Switzerland |
| 1002117 | Symbiosis |
| 1002551 | Synaptic Transmission |
| 1013036 | Synchrotron Radiation |
| 1002123 | Synecology |
| 1260160 | Synfuels |
| 410013 | Syntax |
| 1002068 | Synthetic Biology |
| 112132 | Syria |
| 607022 | System Theory |
| 1002011 | Systematic Biology |
| 1002186 | Systematics |
| 1002174 | Systems Biology |
| 607101 | Systems Engineering |
| 609091 | Systems or Equipment Maintenance |
| 705073 | Tactile Senses |
| 112133 | Taiwan |
| 112164 | Tajikistan |
| 112134 | Tanzania |
| 1104026 | Target Recognition Systems |
| 408034 | Tariff Policy |
| 705506 | Taste or Gustatory System |
| 901045 | Taxes and Taxation |
| 203022 | Tea |
| 503022 | Teacher Attitude |
| 502036 | Teacher Education |
| 304006 | Technical or Business Writing |
| 1016000 | Technology |
| 1016002 | Technology Assessment |
| 795000 | Technology Assessment or Transfer (Medical) |
| 502049 | Technology Education |
| 1016003 | Technology Planning or Policy |
| 1016004 | Technology Transfer |
| 1005024 | Tectonics |
| 775027 | Teen Pregnancy USE: Teenage pregnancy |
| 775035 | Teenage pregnancy |
| 1016005 | Telecommunications |
| 1016006 | Telecommunications Policy |
| 795010 | Telemedicine |
| 607023 | Telemetry |
| 1016185 | Telemetry Technology |
| 1016012 | Telephones |
| 1015963 | Telescopes |
| 313010 | Television |
| 111006 | Temperate Zone |
| 775030 | Teratology |
| 1230025 | Terrestrial Ecology |
| 404022 | Terrorism |
| 715058 | Testicular Cancer |
| 320009 | Textile or Weaving Arts |
| 1017000 | Textiles |
| 112135 | Thailand |
| 316018 | Theater, Mime |
| 305004 | Theatre or Film Criticism |
| 322000 | Theology USE: Religious Studies |
| 1013029 | Theoretical Physics |
| 795005 | Therapy Evaluation |
| 1003037 | Thermal Analysis |
| 1215035 | Thermal Effects |
| 1275095 | Thermal Power Systems (solar) |
| 1210020 | Thermionic Convertors |
| 607102 | Thermionic Sciences |
| 1013037 | Thermodynamics |
| 609034 | Thermodynamics Engineering |
| 1210025 | Thermoelectric Generators |
| 1002065 | Thermoregulation |
| 609035 | Thermosciences Engineering |
| 1009017 | Thin Films |
| 785214 | Thoracic Surgery |
| 715059 | Throat Cancer |
| 715226 | Thrombosis |
| 715064 | Thyroid Cancer |
| 112136 | Tibet |
| 1275100 | Tidal and Wave Energy |
| 901066 | Time and Motion Studies |
| 1010024 | Time Series Analysis |
| 780020 | Tissue Culture |
| 710514 | Tissue Engineering |
| 710122 | Tissue Engineering USE: Bioengineering |
| 745503 | Tissue Grafting |
| 201057 | Tobacco |
| 112137 | Togo |
| 109060 | Tonga |
| 1010014 | Topology |
| 801045 | Torts |
| 901047 | Total Quality Management USE: Quality or Product Control |
| 715250 | Tourette Syndrome |
| 403505 | Tourism |
| 740599 | Toxicokinetics USE: Pharmacokinetics |
| 1007009 | Toxicology |
| 1015865 | Trace Elements |
| 1104025 | Tracking Control Systems |
| 408042 | Trade |
| 801049 | Trade Regulation Law |
| 606036 | Traffic Engineering |
| 901072 | Training and Development |
| 1002066 | Transcription |
| 1002540 | Transfection |
| 501011 | Transfer Students |
| 780041 | Transgenic Animals |
| 1002541 | Transgenic Plants |
| 1002130 | Transgenics |
| 1240016 | Transition Metals |
| 304005 | Translation |
| 710125 | Transplantation Immunology |
| 1015965 | Transport Aircraft |
| 605008 | Transport Phenomena |
| 607087 | Transport Simulations |
| 419004 | Transportation |
| 1255055 | Transportation Energy Use |
| 606037 | Transportation Engineering |
| 606040 | Transportation Engineering (Environmental Impacts) |
| 606041 | Transportation Engineering (Intermodal Studies) |
| 606038 | Transportation Engineering Design |
| 606039 | Transportation Engineering Economics |
| 606042 | Transportation Engineering Planning or Policy |
| 419008 | Transportation Industry |
| 419006 | Transportation Safety |
| 606043 | Transportation Survey |
| 715210 | Trauma |
| 785217 | Trauma and Emergency Surgery |
| 715213 | Trauma, Cell Biology |
| 715251 | Traumatic Brain Injury |
| 801031 | Trial Law |
| 412045 | Tribal Leaders |
| 609044 | Tribology |
| 1010015 | Trigonometry |
| 112138 | Trinidad and Tobago |
| 1002187 | Tropical Biology |
| 1008210 | Tropical Cyclone Motion |
| 201106 | Tropical Forestry |
| 785215 | Tropical Medicine |
| 111007 | Tropical Zone |
| 715261 | Tuberculosis |
| 715215 | Tumor Immunology |
| 715279 | Tumors |
| 112139 | Tunisia |
| 606044 | Tunnels |
| 609036 | Turbomachinery |
| 601008 | Turbulence |
| 1013046 | Turbulent Cascade Phenomena |
| 112140 | Turkey |
| 112165 | Turkmenistan |
| 109065 | Tuvalu |
| 309055 | Twentieth Century History |
| 112141 | Uganda |
| 112185 | Ukraine |
| 1003047 | Ultrafast Chemistry |
| 1009155 | Ultrafine Microstructure |
| 607091 | Ultramicroelectrodes |
| 607024 | Ultrasonic Technology |
| 706055 | Ultrasonography |
| 790015 | Ultrastructure Health Safety Medical |
| 505010 | Undergraduate Education |
| 1016190 | Undersea Warfare |
| 606072 | Undersea Workstations or Vehicles |
| 1016195 | Underwater Explosive Warheads |
| 408028 | Unemployment Labor Market |
| 801055 | Unfair Competition Law |
| 605002 | Unit Operations Engineering |
| 112142 | United Arab Emirates |
| 112143 | United Kingdom |
| 112144 | United States |
| 1107000 | University - Industrial Partnerships |
| 1016200 | Unmanned Aerial Vehicles (UAV) |
| 1015970 | Unmanned Spacecraft |
| 112145 | Upper Volta |
| 408043 | Urban Economics |
| 501012 | Urban Education |
| 201511 | Urban Farming |
| 409007 | Urban Geography |
| 730103 | Urban Health |
| 309015 | Urban History |
| 411007 | Urban Planning |
| 417023 | Urban Sociology |
| 403044 | Urban Studies |
| 755505 | Urinalysis |
| 715525 | Urogenital Diseases |
| 705075 | Urogenital System |
| 785220 | Urology |
| 112146 | Uruguay |
| 114002 | USA, Atlantic Central |
| 114003 | USA, Great Lakes |
| 114005 | USA, Midwest |
| 114006 | USA, New England |
| 114007 | USA, Northeast |
| 114008 | USA, Northwest |
| 114009 | USA, Southeast |
| 114010 | USA, Southwest |
| 715066 | Uterine Cancer |
| 715217 | Uterine Disorders |
| 901046 | Utilities |
| 112166 | Uzbekistan |
| 740075 | Vaccines |
| 1225015 | Vacuum Engineering |
| 1013084 | Vacuum Science |
| 608016 | Value Engineering |
| 502037 | Values or Moral Education |
| 112196 | Vanuatu |
| 705505 | Vascular Biology |
| 785221 | Vascular Surgery |
| 112240 | Vatican City |
| 1002105 | Vectors (Biology) |
| 203023 | Vegetables |
| 1205040 | Vehicle Design |
| 609037 | Vehicle Dynamics |
| 606068 | Vehicle Impact |
| 715221 | Vein & Artery Diseases |
| 715220 | Venereal Diseases |
| 112147 | Venezuela |
| 901080 | Venture Capital |
| 1002044 | Vertebrate Physiology |
| 1002558 | Vertebrate Zoology |
| 607035 | Very Large Scale Integration (VLSI) |
| 1002120 | Vestibular Transduction |
| 403016 | Veterans |
| 416031 | Veterans Benefits |
| 201058 | Veterinary Medicine |
| 201059 | Veterinary Toxicology |
| 407008 | Victimization or Compensation |
| 312015 | Victorian Language or Literature |
| 324000 | Video Art |
| 112148 | Vietnam |
| 404029 | Violence |
| 404023 | Violent Behavior |
| 407009 | Violent Crime |
| 715523 | Viral Infections |
| 1002594 | Viral Studies USE: Virology |
| 109013 | Virgin Islands |
| 1002045 | Virology |
| 1004170 | Virtual Reality |
| 1008213 | Visibility Imaging |
| 1002046 | Vision |
| 715524 | Vision Disorders |
| 320000 | Visual Arts |
| 705072 | Visual Perception |
| 740065 | Visual Prostheses |
| 730080 | Vital Statistics |
| 1002076 | Vitamins or Metabolic Role |
| 316006 | Vocal Music |
| 740060 | Vocal Prostheses |
| 406003 | Vocational Counseling |
| 502038 | Vocational Education |
| 416016 | Vocational Rehabilitation |
| 1005048 | Volcanology |
| 403017 | Volunteers |
| 901060 | Wage & Salary Administration |
| 1104027 | Warfare or Battlefield Simulation |
| 1016205 | Warfare Technologies |
| 606029 | Waste Disposal |
| 1007025 | Waste Management |
| 202030 | Waste Management (Food Processing) |
| 1225025 | Waste Processing Plants |
| 1007030 | Waste Water |
| 606045 | Waste Water Treatment |
| 1007008 | Water Pollution |
| 1007031 | Water Quality |
| 606046 | Water Resources Engineering |
| 1007010 | Water Resources environmental impacts |
| 606047 | Water Resources Management or Planning |
| 1007511 | Water Rights |
| 606048 | Water Supply |
| 606049 | Water Treatment |
| 1007033 | Watersheds |
| 606050 | Waterways and Harbors |
| 1010055 | Wave Equations |
| 1013070 | Wave Motion |
| 1008220 | Wave or Wake Dynamics |
| 1008215 | Waves or Currents |
| 1104033 | Weapons of Mass Destruction |
| 1016211 | Weapons or Weapon Systems |
| 1016076 | Wearable Computers |
| 1001007 | Weather |
| 1001009 | Weather Modification |
| 1001008 | Weather Prediction or Forecasting |
| 1005050 | Weathering |
| 1004068 | Web Analytics |
| 1004512 | Web Design |
| 201062 | Weed Sciences |
| 606086 | Welding |
| 112193 | West Bank |
| 109014 | West Indies |
| 1008225 | Western Boundary Currents |
| 309056 | Western Civilization |
| 108004 | Western Hemisphere |
| 1007026 | Wetlands |
| 1004053 | Wide Area Networks |
| 201063 | Wildlife |
| 1275110 | Wind Climatology |
| 1275120 | Wind Energy Engineering |
| 1275105 | Wind Power |
| 601009 | Wind Tunnels |
| 1275115 | Wind Turbines |
| 607003 | Wireless Communication Systems |
| 408030 | Women or Minorities Labor Markets |
| 416033 | Women Social or Economic Services |
| 509000 | Women's Education |
| 730095 | Womens Health |
| 309060 | Women's History |
| 715237 | Women's Mental Health |
| 403018 | Women's Studies |
| 201064 | Wood or Wood Products |
| 1004024 | Word or Text Processing |
| 404024 | Work Motivation |
| 417017 | Worker Attitudes |
| 309086 | World History |
| 765040 | Wound Healing |
| 502039 | Writing or Composition Education |
| 1003504 | Xenobiotics |
| 110017 | Yellow Sea |
| 112149 | Yemen |
| 312049 | Yiddish Language or Literature |
| 304007 | Young Adults Literature |
| 417045 | Youth Development or Leadership |
| 901102 | Youth Employment Opportunity Programs |
| 411023 | Youth Policy |
| 404508 | Youth Violence |
| 112151 | Zaire |
| 112152 | Zambia |
| 715141 | Zika Virus |
| 112153 | Zimbabwe (Rhodesia) |
| 1009165 | Zinc |
| 1002192 | Zoological Park |
| 1002047 | Zoology |