SPIN Keyword Thesaurus Code Description Occurrences 0730077 Aboriginal Health 38 0401005 Aboriginal Studies 50 0755055 Abortion (Induced) 8 0406004 Abortion Counseling 1 0605010 Absorption 6 0503001 Academic Achievement 135 0715005 Accidents 36 0901001 Accounting 132 1007011 Acid Precipitation 2 1009020 Acoustic Damping Mechanisms 0 1013041 Acoustic Reverberation 0 1016010 Acoustic Target Detection 0 1016020 Acoustic Tomography 0 0607025 Acoustic Waves 1 1013001 Acoustics 32 1016015 Acoustics Technology 10 0901058 Acquisitions/Mergers 1 1220005 Actinide Chemistry 0 0745059 Acupuncture 8 0404001 Addictions 143 1009025 Adhesion Mechanisms 2 0414028 Adjustment Psychology 0 0801001 Administrative Law 14 0710005 Adolescent Health 102 0403040 Adolescent Parenting 6 0775035 Adolescent Pregnancy 25 0414030 Adolescent Psychology 24 0414070 Adolescent Sexual Behavior 27 0403001 Adolescents 131 0404025 Adoption 14 0505001 Adult & Continuing Education 54 0404060 Adult Day Care 1 0403019 Adults 52 0715006 Adverse Effects 9 0901002 Advertising 45 0409009 Aerial Geography 3 1015110 Aerial Reconnaissance 0 0601001 Aerodynamics 22 1016025 Aerodynamics Technology 14 0601002 Aeroelasticity 1 0601003 Aeromechanics 4 0601000 Aeronautical/Astronautical Engineering 52 1015001 Aeronautics 96 1001014 Aeronomy 6 1003080 Aerosol Science 9 0785005 Aerospace Biomedicine 17 1015113 Aerospace Engineering 106 1015115 Aerospace Environments 17 1015117 Aerospace Operations/Safety 14 1016030 Aerospace Technology 112 0317001 Aesthetics 12 0503002 Affective Development 1 0103701 Afghanistan 32 0101000 Africa 165 0403002 African Americans 51 0312016 African Languages/Literature 13 0303010 African-American Art 10 0309062 African-American History 27 0403058 African-American Studies 39 0502050 After-School Programs 85 0710010 Aging/Gerontology 274 0201101 Agricultural Biotechnology 37 0201001 Agricultural Chemical Application 8 0201002 Agricultural Collectives/Cooperatives 5 0201003 Agricultural Commodities 42 0408001 Agricultural Economics 76 0201004 Agricultural Engineering 28 0201005 Agricultural Finance 5 0409011 Agricultural Geography 4 0309042 Agricultural History 9 0801002 Agricultural Law 2 0201006 Agricultural Management 55 0201007 Agricultural Planning/Policy 24 0201080 Agricultural Products, Physical Properties 1 0201085 Agricultural Products, Transport/Handling 9 0201000 Agriculture 475 0201022 Agriculture Conservation 39 0502001 Agriculture Education 51 0200000 AGRICULTURE/FOOD SCIENCES/FOODS 124 0201100 Agriculture/Food Studies--Developing Countrie 20 0201008 Agronomy 37 0715008 AIDS 539 0406006 AIDS Counseling 45 0715263 AIDS--Mental Health 25 0715264 AIDS--Perinatal/Pediatric 26 0715265 AIDS--Sexually Transmitted 143 0715266 AIDS--Substance Abuse 97 1015120 Air Breathing Engines 2 1015125 Air Navigation 1 1007005 Air Pollution 117 0419001 Air Safety 21 0419005 Air Transportation 53 1005001 Air/Sea Boundary Interactions 0 1016035 Aircraft Avionics 23 1016040 Aircraft Propulsion Technology 3 1015130 Airfoils 0 1016045 Airframe Design 3 0601004 Airframe Structures and Materials 2 0606070 Airport Runways 2 0105601 Alaska 39 0403053 Alaskan Natives 43 0104301 Albania 21 0502002 Alcohol Education 18 1265005 Alcohol Fuels 0 0404003 Alcohol/Alcoholism 197 0203002 Alcoholic Beverages 19 0745076 Alcoholism Prevention 79 0745077 Alcoholism Treatment 57 1010001 Algebra 30 0101301 Algeria 12 0417009 Alienation 1 1003045 Aliphatic Compounds 0 0785010 Allergy 36 0502040 Allied Health Education 18 0715344 Alopecia 4 0715315 Alpha-1 Antitrypsin Deficiency 10 0801046 Alternative Dispute Resolution Law 1 1205005 Alternative Fuels 86 0745056 Alternative Medicine 67 0503003 Alternative Modes Education 8 1014016 Alternatives to Animal Testing 10 1015140 Aluminum Compounds 3 0715232 Alzheimer's Disease 116 0303011 American Art 50 0309043 American History 367 0312124 American Literature 140 0316011 American Music 31 0107100 American Republics 0 0312017 American Sign Language 1 0403041 American Studies 279 1003050 Amino Acids 8 0755005 Amniocentesis 0 1009006 Amorphous Materials 1 1015145 Amplitude Distribution Analysis 0 0715202 Amputation 6 0715252 Amyotrophic Lateral Sclerosis (ALS) 22 1004090 Analog Computers/Computing 0 1010002 Analysis & Functional Analysis 14 1003008 Analytical Chemistry 26 0414001 Analytical Psychology 9 1215005 Analytical Techniques 20 0705000 Anatomical Systems/Sites 19 1002001 Anatomy 50 0309001 Ancient/Classical History 54 0309018 Ancient/Medieval Philosophy 1 0107201 Andes 2 0715286 Anemia 19 0785015 Anesthesiology 94 0101501 Angola 6 0201072 Animal Adoption 4 0201009 Animal Behavior/Ethology 51 1002002 Animal Breeding and Facilities, Scientific 23 0201011 Animal Care 118 0201012 Animal Communication 2 1002052 Animal Development 22 0201013 Animal Diseases/Pathology 64 0201014 Animal Drugs 5 0201065 Animal Ecology 10 0201015 Animal Feeds/Nutrition 38 0201016 Animal Genetics/Breeding 56 1215019 Animal Genome 15 0201017 Animal Housing 28 0755021 Animal Model 172 0201018 Animal Physiology/Morphology 28 0201102 Animal Reproductive Biology 38 1014003 Animal Research Policy 41 0201019 Animal Science 158 1002063 Animal Taxonomy 7 0201020 Animal Waste 12 0715236 Anorexia/Bulimia 9 0110001 Antarctic Ocean 4 0102000 Antarctica 14 0607026 Antennae 10 0607061 Antennae and Wave Guides 2 0715325 Anthrax 0 0401000 Anthropology 278 1016050 Anti-Submarine Technology 3 0740005 Antibiotics 14 0740010 Anticonvulsants 0 1015150 Antiferroelectricity 0 0108001 Antilles 0 0745089 Antiretroviral Therapy 53 0740011 Antisera 0 1015155 Antisubmarine Warfare 4 0801026 Antitrust Law 2 0740012 Antivirals 6 0715009 Anxiety 29 0607001 Applied Electronics 4 1010003 Applied Mathematics 60 1013085 Applied Physics 17 0414002 Applied Psychology 1 1006000 Applied Sciences 81 0417001 Applied Sociology 0 0607027 Applied Ultrasonics 0 1015160 Approach 10 1015165 Approach Control 0 1016001 Appropriate Technology 6 0201075 Aquacultural Engineering 8 0201066 Aquaculture/Hydroponics 39 1230015 Aquatic Ecology 101 0103601 Arab States 7 0110018 Arabian Gulf 1 0103501 Arabian Peninsula 0 0312018 Arabic Language/Literature 17 0901074 Arbitration/Collective Bargaining 3 0201105 Arboriculture 7 0402001 Archaeological Conservation 20 0402000 Archaeology 324 0402002 Archaeometry 6 0606001 Architectural Engineering 21 0307001 Architecture 267 0307021 Architecture History 79 0307020 Architecture, Design 66 1103020 Archival Programs 124 0130001 Arctic 32 1008015 Arctic Meteorology 3 0110002 Arctic Ocean 2 1008020 Arctic Sciences 21 0403000 Area & Population Studies/Services 12 0302000 Area Studies (Arts/Humanities) 18 0107202 Argentina 17 0103602 Armenia 27 1003043 Aromatic Compounds 0 0715320 Arrhythmias 6 0303001 Art Administration 66 0305001 Art Criticism 66 0502003 Art Education 129 0303013 Art Fundraising Campaigns 3 0303014 Art Planning/Policy 19 0319001 Art Works/Artifacts 136 0715225 Arteriosclerosis/Atherosclerosis 20 0715010 Arthritis 80 1004015 Artificial Intelligence/Cybernetics 25 1015175 Artificial Radiation Belts 0 1015170 Artificial Satellites 4 0303020 Arts in Education 124 0303000 Arts, General/Other 1056 0300000 ARTS/HUMANITIES/CULTURAL ACTIVITIES 1311 0725038 Asbestos 6 0103000 Asia 143 0312020 Asian Languages/Literature 20 0318040 Asian Religions 3 0403045 Asian-Americans 16 0403054 Asian/Pacific Islanders 24 0417011 Assimilation 3 0735021 Assistive Technology (Disabled) 37 0715013 Asthma 68 1015180 Astrodynamics 1 1015185 Astronaut Maneuvering Equipment 2 1015002 Astronautics 46 1015190 Astronomical Satellites 3 1013002 Astronomy 166 1013003 Astrophysics 109 0404070 Asylum 2 0403050 At-Risk Children/Youth 104 0715253 Ataxia 17 0110003 Atlantic Ocean 8 1001002 Atmosphere: Composition & Disturbance 3 1001012 Atmospheres/Planets 13 1015200 Atmospheric Attenuation 0 1001055 Atmospheric Chemistry 22 1001010 Atmospheric Deposition 6 1230020 Atmospheric Ecology 5 1015205 Atmospheric Models 12 1001056 Atmospheric Physics 9 1015210 Atmospheric Radiation 5 1001057 Atmospheric Remote Sensing 7 1001000 Atmospheric Sciences 127 1001058 Atmospheric Structure and Dynamics 9 1013045 Atom Interferometry 2 1003001 Atomic & Molecular Structure 5 1013019 Atomic Physics 40 1013051 Atomic Spectra 0 1016055 Attack-Class Submarines 1 0715132 Attention Deficit Hyperactivity Disorder (ADH 12 0785020 Audiology 52 0901003 Auditing 8 1015215 Auroras 0 0106101 Australasia 2 0106102 Australia 155 0309016 Australian History 43 0104501 Austria 35 0715256 Autism 84 0304006 Autobiography 21 0715015 Autoimmunity 30 1010027 Automata 0 0735005 Automated Clinical Analysis 0 0609001 Automation 16 0417015 Automation and Industrial Workers 0 0609002 Automotive Engineering 25 1205000 Automotive Propulsion Systems 6 1015220 Auxiliary Power Sources 1 1016060 Aviation Technology 47 0104101 Azerbaijan 22 0104302 Azores 0 1015225 Background Noise 1 1015230 Background Radiation 2 1002003 Bacteriology 31 0105100 Bahamas 3 0103502 Bahrain 8 0203001 Bakery Products 1 0705073 Balance 39 0312022 Baltic Languages/Literature 6 0110004 Baltic Sea 1 0104102 Baltic States 8 0103503 Bangladesh 26 0901005 Banking 33 0801003 Banking Law 2 0901006 Bankruptcy 1 0108002 Barbados 7 1015235 Barrier Layers 6 0502004 Basic Skills Education 17 1255003 Batteries 19 1015240 Beams (Radiation) 5 0110019 Beaufort Sea 0 0710011 Behavior and Health 323 0406015 Behavior Modification 61 1215015 Behavioral Biology 116 0715020 Behavioral Medicine 171 0502060 Behavioral Science Education 31 0745001 Behavioral Therapy 59 0414015 Behavioral/Experimental Psychology 27 0400000 BEHAVIORAL/SOCIAL SCIENCES 370 0404000 Behavioral/Social Studies/Services/Other 308 0104103 Belarus 22 0104401 Belgium 15 0107301 Belize 6 1015245 Beneficiation 0 0101502 Benin 8 0110005 Bering Sea 2 0105200 Bermuda 8 0103504 Bhutan 3 0318041 Biblical Studies 22 1103021 Bibliographic Projects 30 0503004 Bilingual/Bicultural Education 2 0755010 Bioassay 45 0710013 Biochemical Engineering 10 0760002 Biochemical Markers 13 1003002 Biochemistry 301 1003015 Biochemistry, Carbohydrates 0 1003016 Biochemistry, Lipids 9 1003017 Biochemistry, Nucleic Acid 6 1003018 Biochemistry, Proteins 5 1008025 Biocorrosion 0 0785232 Biodefense 7 1002048 Biodegradation 0 1007029 Biodiversity 147 1015250 Biodynamics 0 1002196 Bioeffects 0 0706010 Bioelectric Phenomena 2 0765005 Bioenergetics 13 0710015 Bioengineering 120 0740013 Biofeedback 6 1008030 Biofouling 2 1005049 Biogeochemistry 19 0710139 Bioinformatics 169 1002024 Biological Instrumentation 11 0760003 Biological Markers 180 1215010 Biological Materials 57 1002071 Biological Modeling 3 1008005 Biological Oceanography 13 1002075 Biological Polymers 0 0780005 Biological Resources 57 0740015 Biological Response Modifiers 2 1002000 Biological Sciences 636 1002078 Biological Sensor Mechanisms 25 1104001 Biological/Chemical Warfare 35 1265010 Biomass Fuels 51 0750005 Biomaterials 50 0710020 Biomechanics 28 0706000 Biomedical Engineering 96 0780010 Biomedical Research Resources, Other 157 0720005 Biomedical Research Training 441 0710030 Biomedical Research, Multidisciplinary 1226 1002012 Biometry 10 1002200 Biomimetics 5 1002195 Biomineralization 2 1003066 Biomolecular Science 27 1008035 Biophysical Interactions 5 1013004 Biophysics 78 1009030 Biopolymeric Materials 0 1007038 Bioremediation 5 1002202 Biosciences 48 1002193 Biosphere 13 0710032 Biostatistics 86 0765010 Biosynthesis 5 0710033 Biosystematics 4 0710035 Biotechnology 279 0404031 Bioterrorism 20 1002175 Biotic Systems 6 0715318 Bipolar Disorder 21 0715030 Birth/Congenital Defects 45 0110006 Black Sea 7 1015255 Blackout Physiology 0 1015260 Blackout Propagation 0 0715339 Bladder Cancer 2 0715031 Bleeding Disorders 22 0715227 Blindness 87 1002090 Blood Coagulation 6 0715032 Blood Diseases 86 0750010 Blood/Blood Products/Transfusions 64 0790001 Body Composition 4 0107203 Bolivia 15 0705004 Bone 80 0715270 Bone Diseases 49 0705005 Bone Marrow 32 1015265 Booster Rocket Engines 0 0104303 Bosnia-Hercegovina 16 1002013 Botany 79 0101401 Botswana 21 1015275 Boundary Layer Control 0 1015270 Boundary Layers 3 0705010 Brain 226 0715255 Brain Tumors 41 1015280 Brakes for Arresting Motion 3 0107204 Brazil 41 0715276 Breast Cancer 137 0750015 Breast Milk 5 0606060 Bridge Management Systems 8 0606051 Bridges 31 0150001 British Commonwealth of Nations 6 0309044 British History 50 0104402 British Isles 7 1015285 Broadband 15 0405001 Broadcast Media 106 1007041 Brownfields 9 0103401 Brunei 4 1255005 Buildings, Commercial Energy Use 18 1255010 Buildings, Industrial Energy Use 14 1255015 Buildings, Municipal Energy 15 1255020 Buildings, Residential Energy Use 21 0606087 Built Environment 44 0104304 Bulgaria 25 0312120 Bulgarian Language/Literature 0 0101503 Burkina Faso (Upper Volta) 8 0103402 Burma (Myanmar) 6 1015290 Burning Rate 0 0414036 Burnout 1 0715033 Burns 9 0101201 Burundi 3 0201110 Bush/Bushlands 1 0901095 Business 355 0901007 Business Administration 141 0901008 Business Communications 1 0408020 Business Cycles/Crises 0 0502005 Business Education 49 0901009 Business Ethics 7 0901044 Business Statistics 4 0801004 Business/Corporate Law 11 0901096 Business/Economics Planning/Policy 23 0309002 Byzantine History 12 1015295 Cabin Atmospheres 0 0203004 Cacao Products 0 0715301 Cachexia 2 1010004 Calculus 3 0710096 Caloric Restriction 9 0103404 Cambodia (Kampuchea) 30 0101504 Cameroon 10 0105300 Canada 204 0309060 Canadian History 51 0312051 Canadian Literature 29 0403059 Canadian Studies 73 0101302 Canary Islands 1 0710137 Cancer Biology 219 0715038 Cancer Epidemiology 40 0715046 Cancer Survivorship 40 0715035 Cancer/Carcinogenesis 819 0203005 Candy 1 0201107 Canine Diseases/Pathology 3 0607066 Capacitors 0 0101505 Cape Verde 1 1003040 Carbohydrates 4 1009035 Carbon Composites 0 1015300 Carbon Compounds 4 1260005 Carbon Dioxide 25 1002081 Carbon Dioxide Fixation 1 1003027 Carbon Dioxide Reduction 14 1007039 Carbon Sequestration 18 1015305 Cardiography 9 0785025 Cardiology 92 0785228 Cardiopulmonary/Chest Medicine 24 0715040 Cardiovascular Diseases 350 0705015 Cardiovascular System 233 0502006 Career Education & Planning 50 0108003 Caribbean Islands 34 0110007 Caribbean Sea 7 0715041 Caries 15 0409001 Cartography 47 0715104 Cat Eye Syndrome 1 1103001 Cataloging & Classification 11 1003019 Catalysis/Kinetics 11 0715326 Cataract 8 1004169 CD-ROM 5 1015310 Celestial Bodies, Celestial Geodesy 0 1013005 Celestial Mechanics 1 1015325 Celestial Navigation 0 1015330 Celestial Reference Systems 0 0760004 Cell Components 46 1002198 Cell Death 15 0780015 Cell Lines 36 1002004 Cellular Biology 380 1002183 Cellular Physiology 30 0309058 Celtic Studies 3 0606052 Cement and Concrete Chemistry 2 0101100 Central Africa 1 0101303 Central African Republic 0 0107300 Central America 37 0103100 Central Asia 27 0104500 Central Europe 28 0604000 Ceramic Engineering 19 0320001 Ceramics (Visual Arts) 33 1009001 Ceramics/Refractories 18 0203006 Cereals 8 0715257 Cerebral Palsy 12 0715042 Cerebrovascular Disorders 49 0715308 Cervical Cancer 19 0101304 Chad 11 0316012 Chamber Music 32 1015335 Change Detection 1 1010030 Chaos 6 1003003 Chemical Dynamics 4 1003004 Chemical Effects 7 0605000 Chemical Engineering 162 1013020 Chemical Physics 19 1003053 Chemical Reactions 12 1003000 Chemical Sciences 478 1003006 Chemical Synthesis 17 1003060 Chemicals and Chemical Properties 13 1230005 Chemicals Monitoring 5 1230010 Chemicals Transport 3 0780017 Chemicals/Materials 24 0745003 Chemoprevention 13 0740018 Chemopreventive Agents 11 0740020 Chemotherapeutic Agents 13 0745005 Chemotherapy 33 1007037 Chesapeake Bay Studies 25 0403046 Chicanos 7 0403051 Child Abuse/Neglect 105 0404004 Child Psychology/Development 85 0403052 Child Support--Governmental/Parental 17 0403003 Child Welfare 122 0730005 Child/Maternal Health 313 0715296 Childhood Disease 93 0770005 Children (Patients) 94 0304010 Children's Literature 107 0403049 Children/Youth 796 0107205 Chile 17 0103201 China (People's Republic) 112 0110008 China Seas 0 0312024 Chinese Language/Literature 40 0745054 Chinese Medicine 19 0785030 Chiropractic 24 0715288 Cholera 0 0760086 Cholesterol 11 0316013 Choral Music 16 0316010 Choreography 73 0312137 Christian Philosophy 15 1003035 Chromatography 5 0715043 Chronic Fatigue 6 0715166 Chronic Obstructive Pulmonary Disease 20 0313001 Cinema/Video 331 1002176 Circadian Rhythms 10 1015340 Circuit Protection 0 0607028 Circuits and Systems 11 0607067 Circuits Theory/Architecture 5 0705031 Circulatory System 11 0412014 Citizenship 39 0419002 Civic Activities 200 0419008 Civic Protection 6 0412035 Civics/Civics Education 65 0606000 Civil Engineering 83 0801005 Civil Law 24 0412018 Civil Service 11 0412001 Civil/Human Rights 245 1001016 Classification of Climate 0 0503005 Classroom Instruction 19 0715029 Cleft Lip/Palate 6 1001008 Climate Change 280 1001003 Climatology 57 0710040 Clinical Chemistry 15 0706020 Clinical Engineering 2 0785035 Clinical Medicine, General 316 0414004 Clinical Psychology 22 0417013 Clinical Sociology 0 0755015 Clinical Trial 153 1002049 Cloning of Cells 11 1002050 Cloning of Organisms 1 1001018 Cloud Physics 6 1001004 Clouds 10 1220010 Coal Chemistry 1 1260055 Coal Combustion 8 1260010 Coal Processing 6 1260015 Coal Processing/Carbonization 6 1260020 Coal Processing/Desulfurization 0 1260025 Coal Processing/Gasification 5 1260030 Coal Processing/Hydrogenation 1 1260035 Coal Processing/Liquefaction 0 1260040 Coal Processing/Pyrolysis 0 1260045 Coal Processing/Solvent Extraction 0 0606002 Coastal & Ocean Engineering 12 1005006 Coastal Geology 7 1008040 Coastal Meteorology 1 1008001 Coastal Processes 36 0760057 Cocaine 16 0203007 Coffee 2 0414005 Cognitive Development/Processes 226 1015350 Coherent Radiation 0 0760005 Collagen 2 0417027 Collective Behavior 4 0505002 College Students 45 1015355 Collision Avoidance 6 1003009 Colloid Chemistry 3 0107206 Colombia 20 0715037 Colon Cancer 14 0309061 Colonial America 27 0203008 Color Additives 0 0715322 Colorectal Cancer 15 0730092 Combat Medical Care 6 1104019 Combat Rations 0 1003029 Combinatorial Chemistry 1 1010020 Combinatorics 15 1009160 Combustible Materials 1 0609003 Combustion 27 1220015 Combustion Chemistry 7 1015365 Cometary Magnetospheres 0 1015370 Comets 7 1015375 Command Guidance 7 0901010 Commerce 26 0201021 Commodity Futures 1 0104104 Commonwealth of Independent States (CIS) 0 0715045 Communicable Diseases 4 0607002 Communication Systems 44 0405000 Communications 259 0801006 Communications Law 2 1104020 Communications Warfare 2 0715050 Communicative Disorders, Hearing 88 0715055 Communicative Disorders, Speech 63 0501008 Community and School Relations 34 0416018 Community Development/Revitalization 578 0416019 Community Services 644 0403042 Community Studies 34 0403004 Community/Outreach Programs 519 0101402 Comoros 0 0801044 Company Law 3 0503006 Comparative Education 2 0412007 Comparative Government 9 0412047 Comparative Politics 19 0318042 Comparative Religion 49 0417002 Comparative Sociology 1 0414062 Comparative/Animal Psychology 0 0507001 Compensatory Education 0 1004037 Compilers 3 0607072 Complex/Intelligent Systems 32 1006001 Complexity Sciences 7 1009007 Composite Materials 25 0414038 Compulsive Behavior 10 1002171 Computational Biology 67 0601013 Computational Fluid Dynamics 9 0609055 Computational Mechanics 9 1004001 Computer Applications 27 1004030 Computer Architecture 18 0307009 Computer Arts 10 0502041 Computer Education/Literacy 21 1004003 Computer Engineering 86 1004004 Computer Graphics 12 1004165 Computer Hardware 24 1004026 Computer Interface 10 1004168 Computer Modeling 30 0315002 Computer Music 6 1004085 Computer Operating Systems 12 1004006 Computer Programming Languages 11 1004000 Computer Science 453 1004043 Computer Simulation/Modeling 46 1004007 Computer Software 78 1004008 Computer Storage & Retrieval 3 1004009 Computer Systems Analysis 15 0901011 Computer Technology 79 1004010 Computer Theory 3 1004072 Computer Vision 8 0607029 Computer-Aided Design 10 0613000 Computer-Aided Engineering 2 0503007 Computer-Aided Instruction 3 1004170 Computer/Data/Network Security 28 0780040 Computing Resources 21 0606004 Concrete Structures 7 1013006 Condensed Matter 40 0404028 Confinement 0 0404026 Conflict/Dispute Resolution 71 0101506 Congo 16 0705020 Connective Tissue 6 1002005 Conservation Biology 69 0412036 Constitution 7 0801007 Constitutional Law 24 0606005 Construction Engineering 44 0801027 Construction Law 2 0606006 Construction Management 26 0404005 Consumer Behavior 28 0502007 Consumer Education/Information 16 0801008 Consumer Law 2 0901012 Consumer Services 30 0609048 Contact Stress Analysis 0 0405004 Content Analysis 1 0505007 Continuing Professional Development 13 0609005 Continuum Mechanics 0 0750020 Contraceptives 37 0801043 Contracts 9 1004012 Control Applications (Computer Sciences) 4 0607004 Control Systems (Electronic) 23 0609006 Control Systems (Mechanical Engineering) 20 1004013 Control Theory (Computer Sciences) 4 1104012 Conventional Warfare 0 0715060 Convulsive Disorders 3 0503041 Cooperative Education 4 1014010 Cooperative Science Programs 4 0901097 Corporate/Nonprofit Philanthropy 38 0901056 Corporate/Strategic Planning 35 1009002 Corrosion 18 1009040 Corrosion Science 7 1003061 Cosmetics 0 1250005 Cosmology 35 0107302 Costa Rica 15 0203009 Cottonseeds 4 0406008 Counseling/Counselling/Ethics 5 0406000 Counseling/Counselling/Guidance 38 0503008 Counseling/Counselling/Guidance Education 12 1008045 Coupled Ocean Acoustics Models 0 0320002 Craft Arts 132 0785041 Craniofacial Health 36 0320015 Creative Arts 76 0304000 Creative Writing 171 0901013 Credit 5 0407002 Crime Causation 9 0407003 Crime Control 64 0407018 Crime Prevention 78 0407004 Criminal Behavior 15 0407010 Criminal Identification 13 0407012 Criminal Information Systems 9 0407005 Criminal Justice 268 0801010 Criminal Law 37 0407016 Criminal Psychology 0 0407014 Criminal Statistics 24 0407000 Criminology 12 0406001 Crisis Counseling 9 0730088 Critical Care 72 0305000 Criticism 32 0104305 Croatia 21 0201023 Crop Insurance 3 0201024 Crop Science 116 0403005 Cross-Cultural Studies 38 1015380 Cryogenics 14 1004014 Cryptography 11 1010060 Cryptology 3 1009003 Crystallography 31 0108004 Cuba 4 0306000 Cultural Activities 208 0403056 Cultural Diversity 130 0409013 Cultural Geography 11 0309045 Cultural History 147 0401003 Cultural Identity 39 0402003 Cultural Resources 71 0401001 Cultural/Social Anthropology 90 0303012 Culture 525 0901014 Currency 3 0503048 Curriculum Development 209 0407017 Cybercrime 3 0706050 Cybernetics 2 0103603 Cyprus 19 0715258 Cystic Fibrosis 56 1002051 Cytogenetics 7 1002015 Cytology 13 1002097 Cytoskeleton 4 0312121 Czech and Slovak Languages/Literature 0 0104502 Czech Republic 22 0203010 Dairy Products 17 0201025 Dairy Science 23 0606007 Dams and Earth Structures 3 0316001 Dance 265 0502008 Dance Education 4 0312025 Danish Language/Literature 3 1015385 Data Acquisition 91 1004016 Data Analysis 177 0755018 Data Management/Analysis 151 1004172 Data Mining 21 1004166 Data Systems 61 1004061 Database Currency Control 0 0404006 Day Care 24 0306001 Deaf Culture 6 0715336 Deafness 46 0404007 Death and Dying, Behavioral/Social 10 0715070 Death and Dying, Health and Physical Needs 13 0715044 Death/Mortality 10 0411015 Decision Sciences 36 0320003 Decorative Arts 38 1104015 Defense Planning/Policy 35 1104018 Defense Technology 89 0715022 Dementia 83 0412037 Democracy 164 0413001 Demography 64 0104202 Denmark 18 0745010 Dental Health & Hygiene 106 0502009 Dental Health Education 76 0785040 Dentistry 214 1004028 Dependable Systems 0 0414042 Dependency 44 0715072 Depression 64 0785045 Dermatology 75 0606011 Desalination 6 1015390 Descent Propulsion Systems 0 1015395 Descent Trajectories 0 0130002 Deserts and Arid Zones 10 0307000 Design Arts 128 0745015 Detoxification 9 0150002 Developing/Underdeveloped Nations 97 1002006 Developmental Biology 106 0715289 Developmental Disabilities 97 0414006 Developmental Psychology 8 0735023 Device Development for People with Disabiliti 2 0412009 Devolution 0 0715075 Diabetes 300 0715080 Diabetic Retinopathy 4 0745025 Dialysis 10 0304009 Diaries 3 0413021 Diaspora 18 1013007 Dielectric Properties 0 0203011 Dietary Foods 12 0740026 Dietary Supplements 19 0715085 Digestive Diseases & Disorders 50 0705025 Digestive System 14 1004088 Digital Computers/Computing 20 0313011 Digital Television 2 1210000 Direct Energy Conversion 4 1015400 Directional Stability 1 0404008 Disasters 135 0503009 Discipline Problems 0 0710000 Disciplines/Fields, Health & Safety/Med/Biome 73 1010021 Discrete Classification 0 1010025 Discrete Mathematics 11 0404063 Discrimination 67 0795003 Disease Control 284 0715000 Disease Entities/Medical Problems, Behavior 38 0755020 Disease Model 45 0745027 Disease Prevention 621 1280026 DISPLAY 6 0503044 Distance Learning 39 1015405 Distance Measuring Equipment 0 1004063 Distributed Systems 9 0101202 Djibouti 4 0760054 DNA 79 1002070 DNA Replication 4 0403006 Domestic Violence 122 0108005 Dominica 3 0108006 Dominican Republic 26 0740080 Dosage Forms 11 0715144 Down Syndrome 5 0201026 Drainage 3 0304001 Drama 75 0316002 Dramatic/Theatre Arts 261 0320004 Drawing 61 1260075 Drilling and Mining 7 0502010 Driver Education 12 0503043 Dropout Prevention 8 0745078 Drug Abuse Prevention 115 0745079 Drug Abuse Treatment 117 0740081 Drug Delivery Systems 62 0755025 Drug Design 126 0502011 Drug Education 21 0710045 Drug Metabolism 28 0765045 Drug Resistance 19 0404009 Drugs/Drug Abuse 244 0312026 Dutch Language/Literature 6 1015410 Dynamic Characteristics 9 1015415 Dynamic Stability 3 0715090 Dyslexia 3 0715274 Dystonia 14 0503046 E-Learning 16 1016062 E-Science 4 0404033 Early Childhood Development 105 0504005 Early Childhood Education 140 0745092 Early Intervention for People With Disabiliti 13 1015420 Earth Atmosphere 12 1015425 Earth Orbital Rendezvous 0 1015430 Earth Orbits 0 0601017 Earth Satellite Applications 8 1005000 Earth Sciences 210 1005014 Earth Sciences Instrumentation 9 1005040 Earth/Terrestrial Remote Sensing 7 0606008 Earthquake Engineering 7 0404058 Earthquake Mitigation 11 0103200 East (Far East) Asia 21 0101200 Eastern Africa 7 0104100 Eastern Europe 51 0120001 Eastern Hemisphere 0 0130000 Ecological Zones 4 1002016 Ecology 325 0413013 Ecology and Population 8 0408002 Econometrics/Forecasting 10 0408041 Economic Competitiveness 27 0901015 Economic Development 419 0409003 Economic Geography 7 1005007 Economic Geology 4 0309003 Economic History 38 0408013 Economic Stabilization 34 0408040 Economic Studies--Developing Countries 27 0408003 Economic Theory 15 0408000 Economics 523 0502061 Economics Education 21 0408018 Economics of Consumption 3 0408036 Economics of Indexing 0 0408014 Economics of Research and Development 4 0408032 Economics of Telecommunications 1 0408015 Economics of the Environment 25 1007027 Ecosystem(s) 258 0715319 Ectodermal Dysplasias 1 0107207 Ecuador 12 0304011 Editorial Projects 36 0500000 EDUCATION 1504 0503011 Education and Work 22 0507007 Education for People With Disabilities 83 0503010 Education, Organizational Theory & Behavior 4 0720000 Education/Instruction (Health/Safety/Medical) 112 0502000 Education/Instructional Programs 148 0501000 Educational Administration and Policy 98 0503012 Educational Evaluation/Assessment 73 0501001 Educational Finance 16 0503035 Educational Improvement 276 0801012 Educational Law 3 0503000 Educational Modes/Psychology/Theory 12 0411011 Educational Planning/Policy 72 0414007 Educational Psychology 3 0503036 Educational Reform 63 0503037 Educational Restructuring 18 0503045 Educational Retention 21 0501035 Educational Studies--Developing Countries 16 0503014 Educational Testing/Measurement 24 0503038 Educational Values 4 0503042 Educational/Instructional Technology 70 0503013 Educational/Public Television 6 0901016 Efficiency Studies 73 0103604 Egypt (United Arab Republic) 34 1015435 Ejection 0 0107303 El Salvador 28 1002067 Elasmobranch 2 1015440 Elastic Waves 0 0609007 Elasticity 0 1009045 Elastomers/Coatings 1 0403008 Elderly 265 0730061 Elderly Health 214 0412016 Electoral Systems 33 1015445 Electric Generators 1 0607005 Electric Power Conversion 2 0607006 Electric Power Generation 20 0607007 Electric Power Transmission 8 1205010 Electric Powered Systems 21 0607000 Electrical Engineering/Electronics 236 1016080 Electro-optical Technology 12 1013047 Electro-optics 14 1003031 Electrochemical Analysis 4 1003021 Electrochemistry 55 1210005 Electrohydrodynamic Generators 0 1250010 Electrohydrodynamics 1 0607040 Electrolytic Cells 0 1015450 Electromagnetic Coupling 0 0607014 Electromagnetic Fields 4 0607008 Electromagnetic Propagation 2 1015460 Electromagnetic Propulsion 0 0607009 Electromagnetics 28 0609008 Electromechanical Systems 13 1013038 Electron Microscopy 13 1016063 Electronic Commerce (E Commerce) 5 1016064 Electronic Data Interchange (EDI) 1 1016070 Electronic Devices 40 1016075 Electronic Materials 27 0405010 Electronic Media 110 0607041 Electronic Neural Networks 0 1004023 Electronic Publishing 7 1016065 Electronic Warfare 4 1009080 Electronic/Optical Materials 8 0609042 Electronics Cooling 0 0710050 Electrophysiology 18 1002085 Electroreception 0 0504001 Elementary Education 47 1013021 Elementary Particle Physics 12 0504000 Elementary/Secondary Education 195 0412046 Elite Studies 0 1004174 Embedded Systems 7 1002017 Embryology 29 0730087 Emergency Health Services 115 1104002 Emergency Preparedness 142 0609009 Emission Control 124 0715095 Emotional/Mental Health 215 0715239 Emotional/Mental Health--Child/Adolescent 92 0715240 Emotional/Mental Health--Geriatric 25 0715238 Emotional/Mental Health--Minorities 17 0715237 Emotional/Mental Health--Women 19 0507002 Emotionally Disturbed Education 0 0901017 Employee Benefits 6 0901048 Employment Opportunity Programs 158 0408016 Employment/Unemployment Studies 44 1007033 Endangered Species 81 0705030 Endocrine System 69 0785050 Endocrinology 109 0715034 Endometriosis 11 0760010 Endorphins 0 1008050 Energetics 9 1200000 ENERGY 369 1009050 Energy Absorbing Materials 3 0765017 Energy Balance 37 1215000 Energy Biological/Biomedical Sciences 22 1220000 Energy Chemical Sciences 33 1210030 Energy Conservation 195 0408004 Energy Economics 35 1280000 Energy Education 14 1225000 Energy Engineering 46 1230000 Energy Environmental Sciences 88 1280005 Energy Faculty Support 0 1235000 Energy Geosciences 15 1280010 Energy Graduate Support 1 1240000 Energy Materials Sciences 28 1245000 Energy Mathematical Sciences 6 1250000 Energy Physical Sciences 10 0411019 Energy Planning/Policy 31 1280015 Energy Postdoctoral Support 1 1280020 Energy Pre-College Support 1 0609060 Energy Release/Transport 9 1255023 Energy Storage Systems 34 1255060 Energy Testing/Analysis 7 1280025 Energy Undergraduate Support 1 1255000 Energy Utilization 98 1230045 Energy/Environmental Studies--Developing Coun 10 0600000 ENGINEERING 1166 0608001 Engineering Administration/Management 3 0609010 Engineering Design 49 0502042 Engineering Education 161 0606009 Engineering Geology 5 0608002 Engineering Innovation Processes 14 0608003 Engineering Management Information Systems 0 0608004 Engineering Personnel Management 0 0411020 Engineering Planning/Policy 5 0608005 Engineering Project Management 2 0414016 Engineering Psychology 0 0608006 Engineering Statistics 0 0609011 Engines 28 0104403 England 32 0502014 English as a Second Language 110 0502013 English Education 28 0312122 English Language/Literature 118 0201103 Enology/Viticulture 6 1002018 Entomology 77 0901050 Entrepreneurship 135 0502047 Entrepreneurship Education 21 0725000 Environment (Health/Safety/Medical) 160 1007001 Environmental Biology 45 1007002 Environmental Chemistry 29 1007015 Environmental Conservation 808 0609012 Environmental Design 21 0307002 Environmental Design/Technology 21 0502015 Environmental Education 163 1007003 Environmental Effects 103 1260080 Environmental Effects, Fossil Energy 16 1275005 Environmental Effects, Hydropower 5 1009004 Environmental Effects, Materials 5 0606010 Environmental Engineering 58 1007004 Environmental Geography 17 0725005 Environmental Health 197 0801013 Environmental Law 28 1007035 Environmental Management 173 0725036 Environmental Medicine 22 1007016 Environmental Physics 8 0411009 Environmental Planning/Policy 139 0414044 Environmental Psychology/Crowding 0 1007030 Environmental Restoration/Remediation 384 1007042 Environmental Risk Assessment 43 1230030 Environmental Site Use Studies 26 1007000 Environmental Studies 771 0760013 Enzymes 30 1002089 Enzymes Catalysis 2 0710055 Enzymology 3 1007017 EPA Laboratory Support 1 0785055 Epidemiology 528 1002201 Epigenetics 64 0715244 Epilepsy 90 0501003 Equal Educational Opportunity 6 0412043 Equal Opportunity 17 0201108 Equine Diseases/Pathology 14 1002055 Equine Studies 37 0715307 Erectile Dysfunction 2 0608007 Ergonomics 22 0101305 Eritrea 3 1010031 Error Control 0 0715304 Esophageal Diseases 4 0801028 Estate Law 0 0801041 Estate Planning 0 0104105 Estonia 23 0760026 Estrogen 6 1008002 Estuarine Sciences 36 1265015 Ethane 1 0783011 Ethical, Legal and Social Implications (ELSI) 35 0317002 Ethics 134 1014004 Ethics/Values in Science and Technology 36 0101306 Ethiopia 41 0401008 Ethnic Studies 85 0401007 Ethnography 32 0401009 Ethnohistory 7 0401010 Ethnology 12 0401016 Ethnomusicology 13 1002110 Ethology 8 0755030 Etiology 184 1002113 Eugenics 0 0104600 Eurasia 43 0104000 Europe 74 0307022 European Architecture 8 0150003 European Communities 16 0408022 European Economic Integration 6 0309046 European History 89 0404069 European Integration 11 0312126 European Languages/Literature 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Fatigue/Fracture 7 1109000 Federal Register Weekly Reference Guide 5 0104306 Federal Republic of Yugoslavia 0 0203012 Feed Grains 2 0201109 Feline Diseases/Pathology 3 1002057 Fermentation 7 0607071 Ferrites 0 0201029 Fertilizers 6 0715259 Fetal Alcohol Syndrome 16 0705035 Fetus 9 0607030 Fiber Optics 5 0715102 Fibromyalgia 4 0304002 Fiction 233 1015490 Field Aligned Currents 0 1015495 Field Theory (Physics) 0 0103202 Fiji 2 1004040 File Organization/Computers 0 0901018 Finance 198 1008060 Fine and Microstructure 1 0303016 Fine Arts 109 1010005 Finite Mathematics 0 0104203 Finland 24 1101000 Fire/Flammability Studies 27 0404062 Firearms/Guns 5 1009161 Fireproofing Materials 4 0408005 Fiscal Theory/Application 9 0201030 Fish and Fisheries 176 0601005 Flight Control 10 1015500 Flight Instruments 4 0601011 Flight Testing 9 1008008 Floods/Flooding 21 0318043 Florentine Religion 0 0609070 Flow Control 3 0609075 Fluid Dynamics 25 1015510 Fluid Flow 12 0609014 Fluid Mechanics 13 1250020 Fluid Physics 7 1250025 Fluid/Electrohydrodynamic Physics 0 1250030 Fluid/Magnetohydrodynamic Physics 0 1250035 Fluid/Superfluidity Physics 0 0745085 Fluoride 5 1015515 Flux Rate/Flux Density 0 1205025 Flywheel Propulsion 0 0730015 Folk Medicine 3 0308001 Folk/Ethnic Arts 106 0308000 Folk/Ethnic Studies 25 0308002 Folklore and Mythology 36 0202001 Food Additives 4 0785011 Food Allergy 6 0202002 Food Analysis 5 0202019 Food and Trade Policy 12 0202003 Food Chemistry 8 0202004 Food Consumption 13 0202005 Food Distribution 41 0202006 Food Drying 0 0202007 Food Engineering 20 0202008 Food Labeling 1 0202009 Food Management 15 0202010 Food Manufacturing 25 0202011 Food Marketing 25 0202024 Food Packaging 26 0202012 Food Practices 10 0202013 Food Preparation 10 0202014 Food Preservation 17 0202015 Food Processing 45 0202025 Food Radiation 0 0202016 Food Safety 109 0202000 Food Sciences 127 0404010 Food Stamps 15 0202017 Food Storage 4 0202018 Food Technology 63 0715335 Foodborne Illnesses 14 0765034 Foodborne Pathogens 13 0203000 Foods 65 0502016 Foreign Languages Education 121 0411021 Foreign Policy 78 0801014 Forensic Law 21 1019000 Forensic Science 49 0201067 Forest Ecology 40 0201031 Forest Economics 12 0201070 Forest Engineering 4 0201068 Forest Management 48 0201032 Forestry and Woodlands 177 1004031 Formal Semantics 1 0412026 Formal Theory (Political Science) 0 0104106 Former Soviet Union 21 1260000 Fossil Energy 21 1260140 Fossil Fuels Storage 2 1260090 Fossil Fuels, Coal 14 1260095 Fossil Fuels, Natural Gas 17 1260100 Fossil Fuels, Oil Shales/Tar Sands 8 1260105 Fossil Fuels, Petroleum 19 0404027 Foster Care 26 0715305 Fractures 11 0715291 Fragile X Syndrome 21 0104404 France 87 0901098 Free Enterprise 10 0107209 French Guiana 0 0312030 French Language/Literature 39 0609046 Friction/Wear Lubrication 0 1008065 Fronts and Eddies 0 0202020 Frozen Foods 1 0203013 Fruits 15 0203030 Fruits, Citrus 0 1210010 Fuel Cells 36 1016085 Fuel Consumption, Ships/Aircraft 1 0609080 Fuel Synthesis/Characterization 5 1016090 Fuel Use Management Aids 3 1009085 Functional Materials 7 0715103 Fungal Diseases 11 1270110 Fusion Technology 20 0101507 Gabon 0 0403061 Gaelic Studies 3 0107210 Galapagos Islands 2 1013008 Galaxies, Stellar Systems 16 0101508 Gambia 0 0404071 Gambling 19 1010016 Games Theory 6 0403057 Gangs 15 1015520 Gas Flow 1 0609016 Gas Turbines 4 1265066 Gasification 12 0785060 Gastroenterology 106 0715323 Gastrointestinal Diseases/Disorders 98 1004075 Gateways 0 0103615 Gaza 7 0414054 Gender Differences 58 0730103 Gender Differences (Biological) 30 0417021 Gender Roles 53 0730102 Gender Studies (Biological) 4 0755035 Gene Cloning 3 0765046 Gene Expression 79 0760015 Gene Products 17 0765015 Gene Regulation 11 0745083 Gene Therapy 92 0785081 General Practice 14 1002188 Genetic Engineering 31 0755040 Genetic Manipulation 15 0414048 Genetic Psychology 0 1002019 Genetics 647 0404065 Genocide 26 0765042 Genome/Phenome 16 0765041 Genomics 247 1005002 Geochemistry 46 1005003 Geodesy 11 1005041 Geodynamics 7 1004019 Geographic Information System(s) (GIS) 22 0409002 Geographic Quantitative Methods 0 0409000 Geography 172 0502062 Geography Education 13 1005005 Geology 156 1005038 Geomagnetism 3 1010006 Geometry 28 1005011 Geomorphology 27 1013009 Geophysics 71 0104107 Georgia 28 1005044 Geosciences 130 0606012 Geotechnical Engineering 8 1275010 Geothermal Energy 12 1275015 Geothermal Engineering 7 0710012 Geriatrics 125 0104503 German Democratic Republic (GDR), Former 13 0312028 German Language/Literature 27 0403047 German-Americans 1 0104504 Germany, Federal Republic of 107 0414040 Gestalt Psychology 2 0101509 Ghana 23 0507003 Gifted or Talented Education 7 1005042 Glacial Geology 10 1005012 Glaciology 5 1240005 Glasses 3 0715101 Glaucoma 14 1007018 Global Change 44 0730101 Global Health 72 0614000 Global Positioning System (GPS) 11 0404066 Globalization 48 0202023 GM Crops 0 0202022 GM Foods 1 0403063 Governance 150 0412038 Government Accountability 23 0412002 Government Regulations 17 0412003 Government Studies 129 0412012 Governmental Functions 60 0201090 Grain Processing/Storage 4 0201033 Grains 24 1014006 Grants Administration/Policy 6 1109050 Grants.gov 5359 1109056 Grants.gov/Adobe 1135 1109055 Grants.gov/S2S 3626 0203024 Grapes 5 0307004 Graphic Design 76 1013010 Gravitation 13 1007031 Great Lakes Studies 37 0104307 Greece 54 1007032 Greenhouse Effects 44 1001060 Greenhouse Gases 101 0105700 Greenland 5 1016061 GRID Technology 0 1015530 Ground Stations 1 1015535 Ground Support Equipment 1 0606057 Groundwater 27 0760020 Growth Factors 13 0105602 Guam 2 0107304 Guatemala 24 1015540 Guidance (Motion) 7 0101510 Guinea 9 0101511 Guinea-Bissau 0 0110009 Gulf of Mexico 11 0107211 Guyana 6 1007034 Habitat 293 0715345 Hair Follicle 5 0108007 Haiti 16 0404011 Halfway Programs 0 0735022 Handicapped Device Development 8 0745081 Handicapped Early Intervention 8 0507004 Handicapped Education 82 0801067 Handicapped Legal Services 3 0404061 Handicapped Public Access Programs 20 0415011 Handicapped Rehabilitation 24 0416015 Handicapped Social/Recreation Services 42 0416016 Handicapped Vocational Services 26 0770010 Handicapped/Disabled (Health/Safety/Medical) 182 1008031 Harmful Algal Blooms 4 1010035 Harmonic Analysis, Wavelets 0 0105603 Hawaii 16 0403055 Hawaiian Natives 17 0606053 Hazardous Waste Disposal/Clean-Up 28 1007012 Hazardous Wastes 47 0715317 Head and Neck Cancer 9 0502017 Health and Safety Education 106 0801058 Health and Safety Law 4 0725010 Health and Safety Standards, Environment 28 0700000 HEALTH AND SAFETY/MEDICAL SCIENCES/BIOMEDICAL 842 0730000 Health Care 1316 0730020 Health Care Administration 126 0730085 Health Care Cost Containment 67 0408006 Health Care Economics 131 0730086 Health Care Financing 88 0730023 Health Care Reform 64 0720011 Health Communication 150 0730100 Health Disparities 289 0730025 Health Facilities Studies 60 0730030 Health Insurance 80 0730035 Health Maintenance Organizations 4 0730040 Health Manpower/Professions 72 0730090 Health of Underserved Populations 300 0730091 Health Physics 11 0783015 Health Planning/Policy 399 0745035 Health Promotion 376 0730045 Health Records 54 0710143 Health Science 88 0730050 Health Services Delivery 522 0785065 Health, Allied Fields 42 0725015 Health, Radiation Effects 7 0735020 Health/Medical Science--Computer Technology 86 0730089 Health/Nutrition Programs--Developing Countri 84 1260110 Health/Safety, Fossil Energy 1 0775005 Hearing 98 0705081 Heart 130 0705084 Heart Failure 33 0609017 Heat Transfer 17 0609018 Heating/Ventilation/Air Conditioning 18 1220020 Heavy Element Chemistry 2 0312029 Hebrew Language/Literature 5 1015545 Helicopters 3 0309065 Hellenic Studies 9 0785070 Hematology/Haematology 83 0120000 Hemispheres 0 0715233 Hemophilia 27 0715282 Hepatitis 39 0785071 Hepatology 35 0201034 Herbicides 3 0715267 Herpes Simplex Virus I 1 1002020 Herpetology 7 0130003 High Altitude Zones 0 1013022 High Energy Physics 30 1008070 High Latitude Processes 0 1008075 High Latitude Sediment Dynamics 0 1004167 High Performance Computing 23 1013011 High Pressure Sciences 3 0504002 High School Education 30 1220025 High Temperature Chemistry 6 1009055 High Temperature Coatings 3 1002083 High Temperature/Pressure Biology 2 0505000 Higher Education 492 0505003 Higher Education, Private 25 0505004 Higher Education, Public 30 0606064 Highway Construction/Work Zones 5 0606054 Highway Engineering 22 0403009 Hispanics 77 1002021 Histology 15 0319004 Historic Preservation/Restoration 246 0309047 Historical Documents 107 0309000 History 716 0309004 History & Appreciation of Art 261 0309005 History & Appreciation of Music 59 0502063 History Education 25 0309006 History of Law 23 0309013 History of Medicine 85 0309020 History of Nursing 6 0309007 History of Philosophy 6 0309008 History of Science & Technology 106 0503015 History/Philosophy of Education 2 0715278 HIV Infection 603 0730093 Holistic Medicine 13 0401015 Holocaust 31 1013054 Holography 0 1101500 Home Economics 20 0502018 Home Economics Education 6 0730098 Home Health Care Services 17 0404029 Homeland Security 74 0403048 Homeless 104 0416021 Homeless Services 75 0403025 Homosexual Female/Lesbian 96 0403023 Homosexual Male/Gay 102 0107305 Honduras 25 0103203 Hong Kong 27 0745088 Hormone Replacement Therapy 3 0760025 Hormones 34 0201035 Horticulture 119 0730055 Hospices 14 0901051 Hospital Administration 7 0770015 Hospitalized Patient 8 0901019 Hotel & Restaurant Management 41 1102000 Housing 279 0801015 Housing Law 5 0110010 Hudson Bay 0 1007019 Hudson River Studies 6 1016095 Hull Surface Treatment 0 1002053 Human Development 65 1007020 Human Ecology 15 1002066 Human Evolution 5 0608008 Human Factors in Engineering 26 1215018 Human Genome 51 0414017 Human Learning and Memory 34 0715311 Human Papillomavirus 2 1002061 Human Physiology 22 0413011 Human Population Genetics 10 0413002 Human Reproduction/Fertility 70 0901101 Human Resources 74 0783005 Human Subjects Policy 18 0606066 Human Tolerance to Impact 1 0419007 Human Trafficking 23 0414008 Humanistic Psychology 8 0310005 Humanities Fundraising Campaigns 1 0310001 Humanities Planning/Policy 4 0310000 Humanities, General/Other 683 0502019 Humanities/Liberal Arts Education 75 0130004 Humid Zones 0 0104505 Hungary 33 0404064 Hunger 54 0715245 Huntington's Disease 15 1205030 Hybrid Propulsion Systems 4 0760030 Hybridomas 0 0606013 Hydraulic Engineering 7 1275020 Hydro Energy 15 1275025 Hydro Energy, Meteorology 1 1008080 Hydroacoustics 2 1265020 Hydrocarbon Fuels, General 8 1265025 Hydrocarbon Fuels, Preparation 1 1005045 Hydrodynamics 12 1265000 Hydrogen and Synthetic Fuels 19 1265030 Hydrogen Fuels, General 29 1265035 Hydrogen, Biosynthesis Processes 3 1265040 Hydrogen, Electrolysis 0 1265045 Hydrogen, Thermochemical Processes 0 1265050 Hydrogen, Transport 3 1265055 Hydrogen, Water/Gas Processes 1 1005027 Hydrogeology 9 1005013 Hydrology 52 0715271 Hyperactivity 8 0715105 Hyperplasia 3 0715110 Hypersensitivity 6 0715115 Hypertension 72 0745037 Hyperthermia 6 0755056 Hysterectomy 0 0309059 Iberian Studies 6 1008085 Ice-Acoustic Interactions 0 0104204 Iceland 22 0312031 Icelandic Language/Literature 4 1002022 Ichthyology 6 0403010 Illegal Aliens 1 0607031 Image Processing 30 1013042 Imaging Sciences 117 0403011 Immigrants 72 0403065 Immigration 50 0801016 Immigration Law 9 0740023 Immune Enhancers 0 0705040 Immune System 88 0715120 Immune System Disorders 59 0745086 Immunization 26 0710060 Immunochemistry 3 1002099 Immunodiagnostics 3 0710065 Immunogenetics 7 0710070 Immunology 247 0710075 Immunopathology 1 1002177 Immunophysiology 1 0745040 Immunosuppression 9 0745045 Immunotherapy 25 0740082 Implants 35 0715272 Incontinence 12 0103505 India 82 0110011 Indian Ocean 1 0403022 Indigenous Australians 41 0103403 Indonesia 50 0607069 Inducers 0 0502020 Industrial Arts Education 2 0408026 Industrial Cooperation 5 0609019 Industrial Design 22 0608000 Industrial Engineering 84 1255025 Industrial Processes, Energy Use 10 0408024 Industrial Production 17 0414009 Industrial Psychology 4 0608009 Industrial Relations 8 0901068 Industrial Robotics 0 0608010 Industrial Systems Engineering 3 1016210 Industrial Technology 35 1007021 Industrial Waste 8 1255030 Industrial Waste Heat Recovery 4 1255035 Industrial Waste Management 6 0901020 Industry 179 1270097 Inertial Fusion 1 0414032 Infant Psychology 2 0403020 Infants 88 0715125 Infectious Diseases/Agents 358 0705036 Infertility 21 0715026 Inflammation 85 0715230 Inflammatory Bowel Disease 35 0715283 Influenza 29 0503025 Information Literacy 3 1004017 Information Science/Systems 274 1004062 Information Technology 399 1004018 Information Theory 9 0607070 Information/Communication Systems 71 1009060 Infrared Window Materials 0 1013075 Infrared/Optical Astronomy 6 0760035 Inhibitors 11 0715027 Injury 157 0715028 Injury, Immunophysiology 0 0403012 Inner-City 6 0901031 Innovation 262 1003010 Inorganic Chemistry 20 1009065 Inorganic Polymers 1 0801047 Insolvency/Bankruptcy 0 0320016 Installation Art 21 0503016 Instructional Materials and Practices 60 0503017 Instructional Television 1 0316005 Instrumental Music 37 1013012 Instrumentation, Techniques (Physical Science 19 0735000 Instruments/Instrumentation/Devices (Health/M 103 0760021 Insulin 20 0901021 Insurance/Actuarial Science 18 1004049 Integer Programming 0 0607043 Integrated Circuits 4 0309048 Intellectual History 9 0801032 Intellectual Property 37 0303017 Inter-Arts--Interdisciplinary Art Forms 68 0140002 Intercultural Communications 7 1009070 Interfaces 47 0605014 Interfacial Phenomena 3 0412008 Intergovernmental Relations 6 0307005 Interior Design 32 1009075 Intermetallics 0 1205035 Internal Combustion Engines 3 0785085 Internal Medicine 55 1008090 Internal Waves 0 0140001 International Affairs 69 0201036 International Agriculture 5 0801017 International and Comparative Law 36 0140003 International Business 55 0411022 International Crisis Management 8 0408007 International Economics 63 0502043 International Education/Training 118 0901076 International Management 7 0411001 International Planning/Policy 59 0412004 International Relations/Diplomacy 255 0140005 International Rights 6 1104016 International Security 67 0502064 International Studies Education 58 0140000 International Topics 43 0901022 International Trade & Finance 65 0100000 INTERNATIONAL/GEOGRAPHICAL REGIONS 17 0140004 International/Global Development 48 1004053 Internet 89 1015560 Interplanetary Spacecraft 11 1015565 Interplanetary Trajectories 0 1013013 Interstellar Studies 5 0740000 Intervention, Agents for (Health/Safety/Medic 427 0745000 Intervention, Types of (Health/Safety/Medical 427 0715348 Intervertebral disc 0 0901070 Inventory Control Systems 8 1002062 Invertebrate Physiology 12 0901023 Investments and Securities 14 0760036 Ion Channels 15 1015570 Ionospheres 11 1015575 Ionospheric Conductivity 1 1001020 Ionospheric Phenomena 3 1001059 Ionospheric Physics 3 1015580 Ionospheric Propagation 0 0103605 Iran 21 0103606 Iraq 23 0104405 Ireland 95 0315003 Irish Music 12 0412048 Irish Politics 3 1009162 Iron 12 1015585 Irradiation 4 0201037 Irrigation 28 0401011 Islamic Studies 30 0404030 Isolation 4 1005031 Isotope Geochemistry 4 1270010 Isotope Power Supplies 3 1270005 Isotope/Radiation Technology 5 0103607 Israel 86 0309017 Italian History 14 0312032 Italian Language/Literature 31 0104308 Italy 96 0101512 Ivory Coast 10 0108008 Jamaica 14 1016100 Jammers/Decoys 0 0103204 Japan 132 0312034 Japanese Language/Literature 37 0316014 Jazz Music 26 1015590 Jet Aircraft 0 1015595 Jet Engines 0 0320005 Jewelry/Metal Arts 13 0309049 Jewish History 71 0401012 Jewish Studies 121 0103608 Jordan 32 0313002 Journalism 370 0304008 Journals 14 0801018 Judicial/Law Administration 39 0505005 Junior & Community Colleges 2 0504003 Junior High School Education 2 0311000 Jurisprudence 49 0407006 Juvenile Delinquency 70 0407013 Juvenile Justice 81 0801019 Juvenile Law 37 0104108 Kazakhstan 26 0101203 Kenya 40 0785229 Kidney (Renal) Functions 80 0715262 Kidney Disease 112 1004035 Knowledge Acquisition 25 0404068 Knowledge Based Society 8 1004036 Knowledge Management 35 1004039 Knowledge Representation 8 0103205 Korea 46 0312036 Korean Language/Literature 10 0715298 Krabbe Disease 3 0103609 Kuwait 6 0140007 Kyoto Agreement 0 0104109 Kyrgyz Republic (Kyrgyzstan) 28 0408008 Labor Economics 11 0801020 Labor Law 23 0408028 Labor Market/Unemployment 16 0408030 Labor Market/Women and Minorities 5 0901052 Labor Relations 17 1014011 Laboratory Practice/Procedure 64 0775010 Lactation 5 1015600 Laminar Flow 0 0501037 Land Acquisition/Real Estate 12 0201038 Land Management 61 1007006 Land Pollution 4 0411013 Land Use Planning/Policy 72 1015605 Landing 2 1015610 Landing Aids 0 1015615 Landing Simulation 0 0307006 Landscape Architecture/Design 76 0606014 Landslides 3 0410001 Language Acquisition and Development 88 0312000 Language and/or Literature 468 0312013 Language and/or Literature, Biography 45 0312002 Language and/or Literature, Classical Greek 8 0312003 Language and/or Literature, Classical Latin 9 0312001 Language and/or Literature, Classical/Ancient 36 0312004 Language and/or Literature, Comparative Liter 10 0312005 Language and/or Literature, Drama 34 0312050 Language and/or Literature, Esperanto 0 0312006 Language and/or Literature, Fiction 172 0312007 Language and/or Literature, Medieval 5 0312008 Language and/or Literature, Modern 44 0312009 Language and/or Literature, Non-Fiction 121 0312010 Language and/or Literature, Poetry 211 0312011 Language and/or Literature, Renaissance 9 0312014 Language and/or Literature, Romantic 6 0312012 Language and/or Literature, Translation 39 0312015 Language and/or Literature, Victorian 1 0502021 Language Arts Education 8 0312139 Languages 64 0103405 Laos 10 1009090 Large Unit Cell Materials 0 0715143 Larsen Syndrome 0 1015620 Laser Interferometry 2 1013014 Lasers and Masers 56 0107000 Latin America 54 0309050 Latin American History 15 0312127 Latin American Languages/Literature 9 0312136 Latin Palaeography 0 0312125 Latin Paleography 0 0104110 Latvia 23 1015625 Launch Vehicles 5 0800000 LAW 434 0418003 Law and Social Change 32 0801029 Law and Society 62 0801021 Law Enforcement 124 1240010 Layered/Superlattice Materials 0 1009163 Lead 18 0901024 Leadership 239 0417040 Leadership Development 161 0507005 Learning Disabled Education 24 0720010 Learning Disorders 20 0503018 Learning Motivation 15 0103610 Lebanon 18 0502022 Legal Education 55 0801061 Legal Procedure 10 0801035 Legal Profession, The 20 0801037 Legal Reform 31 0801065 Legal Services 69 0801068 Legal Services for People With Disabilities 9 0418005 Legal Systems 46 1260115 Legislation/Regulation, Energy 1 0715268 Leprosy 4 0101403 Lesotho 4 0715234 Leukemia 60 0101513 Liberia 10 1103024 Library Acquisitions 32 1004020 Library Automation 12 1103000 Library Science 290 1103022 Library Technology 53 0103611 Libya 4 0104506 Liechtenstein 0 1002189 Life Sciences 197 1015630 Life Support Systems 8 0505006 Lifelong Learning 22 0607100 Lighting Systems/Design 23 1002025 Limnology 17 1004046 Linear Programming 0 0409004 Linguistic Geography 3 0410000 Linguistics/Philology 204 0760040 Lipoproteins 4 1270173 Liquid Metal Reactor 0 0503019 Literacy 199 0305002 Literary Criticism 47 0312128 Literary History 41 0312129 Literature--Audience Development 22 0312130 Literature--Design/Production 40 0104111 Lithuania 28 0715321 Liver Cancer 7 0715231 Liver Disorders 73 0705080 Liver Functions 34 0201039 Livestock 115 0501036 Loans/Guarantees/Investments 2 1004052 Local Area Networks 2 0412024 Local Government 45 1010007 Logic 11 0901064 Logistics 40 0130005 Low Altitude Zones 0 0715151 Low Back Pain 1 1013015 Low Temperature Sciences 5 0715224 Lowe Syndrome 0 1015635 Lunar Atmosphere 3 1015640 Lunar Environment 3 1015645 Lunar Exploration 13 1015650 Lunar Probes 2 1015003 Lunar Sciences 9 1015655 Lunar Spacecraft 6 0715303 Lung Cancer 39 0715235 Lupus 29 0104406 Luxembourg 7 0715269 Lyme Borreliosis/Lyme Disease 4 0705045 Lymphatic System 27 0760042 Lymphocytes 6 0715316 Lymphoma 37 0104309 Macedonia 17 0609020 Machine Design 6 1004021 Machine Translation 1 0408009 Macroeconomics 19 0715327 Macular Degeneration 14 0101404 Madagascar 10 1245005 Magnetic Fusion Computation 3 1009095 Magnetic Materials 8 0706036 Magnetic Resonance Imaging (MRI) 32 1013016 Magnetics 32 1013087 Magnetics Laboratory Facilities 1 1210015 Magnetohydrodynamic Generators 0 0609021 Magnetohydrodynamics 5 1013053 Magnetospheric Phenomena 7 0715337 Malaria 51 0101405 Malawi 12 0103406 Malaysia 29 0103506 Maldives 2 0705037 Male Infertility 0 0101514 Mali 11 0715302 Malnutrition 12 0104310 Malta 6 1002026 Mammalogy 20 0730036 Managed Care 15 0901025 Management Information Systems 28 0901026 Management Sciences 89 0900000 MANAGEMENT/COMMERCE 46 0901035 Management/Commerce Planning/Policy 42 0901078 Management/Not-for-Profit Organizations 193 1015670 Maneuverable Spacecraft 2 1015665 Manned Spaceflight 5 1104004 Manpower Selection & Training 12 0901027 Manpower Studies 1 0609022 Manufacturing (Mechanical Engineering) 34 0609095 Manufacturing Engineering 98 0608011 Manufacturing Processes (Industrial Engineeri 61 0319002 Manuscripts/Books/Music Scores 79 0730075 Maori Health 7 0105604 Mariana Islands 2 1008105 Marine Aggregate Dynamics 0 1008000 Marine and Ocean Sciences 208 1008095 Marine Atmospheric Boundary Layers 0 1008100 Marine Atmospheric Chemistry 3 1008110 Marine Biodeterioration 2 1002178 Marine Biology 86 0609023 Marine Engineering 12 1008230 Marine Environment 98 1005008 Marine Geology 23 1008115 Marine Meteorology 9 1008231 Marine Sciences Planning/Policy 12 1008120 Marine Structures 3 1008232 Marine Technology 7 1002190 Marine Zoology 36 1008233 Maritime History 17 1008234 Maritime Industry 20 0801022 Maritime Law 2 0901028 Marketing 191 0201040 Marketing Agreements (Agriculture) 12 0901029 Marketing Research 12 1260120 Marketing/Economics, Energy 3 1015675 Mars Probes 3 0606062 Masonry Engineering 0 0405006 Mass Communication/Media 99 1003025 Mass Spectrometry 28 0605006 Mass Transfer 3 0609040 Mass Transfer Absorption 0 0401013 Material Culture 21 1220030 Materials Chemistry 25 0606015 Materials Engineering 56 0609050 Materials Joining 1 0610001 Materials Processing Engineering 12 0606017 Materials Recovery 0 1009000 Materials Sciences 332 0606019 Materials Testing 5 0606016 Materials, Engineering Properties 13 1240025 Materials, Physical Properties 10 1240030 Materials, Preparation/Fabrication 3 1240035 Materials, Radiation Effects 0 1240045 Materials, Structure and Phase 7 0750000 Materials/Products (Health/Safety/Medical) 13 1010008 Mathematical Foundations 7 0755065 Mathematical Modeling (Medical) 44 1013078 Mathematical Physics 26 1010000 Mathematics 628 0502023 Mathematics Education 128 1010042 Matrix Theory 5 1015680 Matter-Antimatter Propulsion 0 0101307 Mauritania 4 0101406 Mauritius 7 1010062 Measurement 62 0203014 Meat and Meat Products 38 0202021 Meat Inspection 3 0609000 Mechanical Engineering 163 1009010 Mechanical Properties, Materials 7 0609024 Mechanical Systems 9 0609025 Mechanics 29 0705082 Mechanism of Action (Medical) 63 1009110 Mechanisms/Flow and Fracture 2 0313000 Media Arts 269 0502066 Media Education 17 0405011 Media Management 19 0745082 Medical Counseling 17 0730071 Medical Decision-Making 64 0740083 Medical Devices 102 0609026 Medical Devices Engineering 59 0745020 Medical Diagnosis 194 0502024 Medical Education 462 0730067 Medical Errors 8 0783010 Medical Ethics 78 0705668 Medical Gases 1 0785075 Medical Genetics 23 0409017 Medical Geography 15 0710138 Medical Informatics 83 0735015 Medical Instrumentation 77 0801038 Medical Law 3 0730069 Medical Outcomes 150 1270015 Medical Physics 22 1270020 Medical Physics, Dosimetry 0 1270030 Medical Physics, Radiation Calibration 0 1270025 Medical Physics, Radiation Standards 0 0417025 Medical Sociology 32 0745084 Medical Treatment 307 0706030 Medical/Diagnostic Imaging 187 0710080 Medicinal Chemistry 19 0309009 Medieval History 53 0309040 Medieval Studies 63 0745058 Meditation 7 0104311 Mediterranean 9 0110013 Mediterranean Sea 1 0106103 Melanesia 1 0715036 Melanoma 19 0710083 Membrane Electrochemistry 0 0790005 Membrane Structure/Function 8 1002079 Membrane Transport 4 0760044 Membranes 20 0730094 Men's Health 53 0715300 Meniere's Disease 4 0715297 Meningitis 4 0715126 Menopause 37 0715129 Mental Disorders/Illness 238 0730096 Mental Health Services 220 0715130 Mental Retardation 41 0715341 Mesothelioma 12 1002007 Metabolic Biology 50 0715135 Metabolic Diseases 73 0765020 Metabolism 130 0765022 Metabolism, Amino Acid 1 0765025 Metabolism, Lipid 13 0765030 Metabolism, Mineral 4 0765031 Metabolism, Nucleotide 0 0765032 Metabolism, Protein 6 1016105 Metal Ion Sensors 1 0606085 Metallurgical Engineering 17 1009011 Metallurgy 43 1009012 Metallurgy, Extractive and Process 22 1240015 Metals/Alloys 49 0785141 Metastasis 13 1001005 Meteorology 48 1265060 Methane 7 1265065 Methanol 1 0755000 Methodologies/Procedures (Health/Safety/Medic 70 0755066 Methods of Drug Delivery 27 0502025 Metric Education 0 0607018 Metrology 10 0105400 Mexico 65 1002103 Microbial Degradation 2 1002091 Microbial Processes 46 1002027 Microbiology 197 0408010 Microeconomics 13 0607010 Microelectronics 37 1015973 Microgravity/Reduced Gravity Experiments 6 0103206 Micronesia 4 1002095 Micronutrients 7 1004033 Microprocessors 2 1013039 Microscopy 39 1016110 Microwave Circuit Technology 6 0607011 Microwave Theory 8 0504004 Middle School Education 7 0103600 Middle/Near East 90 0785090 Midwifery 45 0715001 Migraine 14 0201041 Migrant Labor 10 0416022 Migrant Services 10 0413003 Migration 32 0201042 Migratory Animals and Birds 30 1015690 Military Aircraft 19 0309063 Military History 44 0801023 Military Law 6 1104003 Military Logistics 24 1104000 Military Sciences 83 1016212 Military Ships 12 1104021 Military Tactics/Combat 29 1104022 Military Textiles 1 1104023 Military Vehicles Technology 15 0607032 Millimeter Waves 0 0785233 Mind-Body Health/Medicine 22 1005035 Mineral Crystallography 3 1005015 Mineral Resources 34 1005016 Mineralogy 151 1011000 Mining 115 0610000 Mining Engineering 26 0801024 Mining Law 0 0403013 Minorities and Disadvantaged 211 0508000 Minority Education 321 0730097 Minority Health Services 91 0416017 Minority Social/Economic Services 28 0901030 Minority/Women-Owned Business 13 1016115 Missile Trajectories 6 1002014 Mitochondria 8 0715293 Mitochondrial Disorder 7 1008125 Mixed Layer Processes 0 0320017 Mixed-Media Art 18 1016008 Mobile Applications 5 1016009 Mobile Networks 3 1016120 Mobility Fuels Technology 0 0303018 Modern Art 17 0309010 Modern History 30 0309066 Modernity 3 0104112 Moldova 21 1002008 Molecular Biology 442 1003062 Molecular Chemistry 38 0755041 Molecular Cloning 1 0785066 Molecular Epidemiology 10 1002058 Molecular Genetics 73 1002098 Molecular Marine Biology 2 1250040 Molecular Physics 31 0755042 Molecular Probes 46 1002101 Molecular Recognition 1 0760000 Molecular/Cellular Entities 173 0104312 Monaco 0 0103207 Mongolia 15 0760045 Monoclonal Antibodies 6 0607080 Monolithic Circuits 1 0715131 Mood Disorders 27 1015695 Moon-Earth Trajectories 0 1008130 Mooring 0 0101308 Morocco 16 1002059 Morphogenesis 5 1002118 Morphology 37 1015700 Motion Stability 0 0715141 Motor Neurone Disease 12 0101407 Mozambique 27 1009115 Multi-layer Composites 0 0901082 Multi-National Corporations 0 0503039 Multicultural Education 13 0403064 Multicultural Society 18 1016007 Multimedia/Interactive Communications Technol 49 0715246 Multiple Sclerosis 57 1015705 Multistage Rocket Vehicles 0 1255040 Municipal Energy Conservation 0 1255045 Municipal Energy Waste Management 1 0412022 Municipal Government 2 1255050 Municipal Public Utilities 0 0715136 Muscle Disorders 55 1002087 Muscle Structure/Function 24 0715242 Muscular Dystrophy 24 0705050 Musculoskeletal System 100 0314010 Museum Fundraising Campaigns 2 0314000 Museums 172 0315000 Music 522 0316003 Music Composition 126 0316004 Music Conducting 8 0305003 Music Criticism 3 0502026 Music Education 54 0415015 Music Therapy 5 0316017 Musical Recording/Distribution 48 0315001 Musicology/Music Theory 54 1002028 Mutagenics 7 0715254 Myasthenia Gravis 7 1002029 Mycology 26 0715332 Myeloma 29 0715314 Myositis 7 0101408 Namibia 15 0610002 Nano-Materials 75 0607003 Nanotechnology 173 0304013 Narrative 13 0411002 National Planning/Policy 5 1104017 National Security 78 0412010 Nationalism 3 0403014 Native Americans 176 1260060 Natural Gas Combustion 1 1018001 Natural History 28 0765047 Natural History of a Disease 39 1004069 Natural Language Programming 0 0765000 Natural Processes (Health/Safety/Medical) 0 0750025 Natural Products 30 1007022 Natural Resources 259 0801051 Natural Resources Law 3 1007023 Natural Resources Management 135 1018000 Natural Sciences 227 1015710 Navigation 16 0607012 Navigation & Guidance Systems 13 0412045 Nazism 1 1001030 Near Earth Space Particles/Fields 2 1008135 Nearshore Processes 0 1002060 Nematology 1 0715137 Neonatal Disorders 24 0785132 Neonatology 31 0103507 Nepal 22 0785095 Nephrology 58 0705055 Nervous System 128 0104205 Netherlands 29 1004055 Networking 67 0745047 Neural Stimulation 16 0785100 Neuroanatomy 22 1002179 Neurobiology 161 1003063 Neurochemistry 35 0715139 Neurodegenerative Diseases/Disorders 69 0785105 Neuroendocrinology 13 0715343 Neurofibromatosis 10 0706031 Neuroimaging 53 0785106 Neuroimmunology 11 0715138 Neurological Disorders 149 0785110 Neurology 179 0715140 Neuromuscular Disorders 35 0785166 Neuropathology 23 0785115 Neuropharmacology 12 0710085 Neurophysiology 35 0785186 Neuropsychiatry 23 0785116 Neuropsychology 50 0710101 Neuropsychopharmacology 26 1002030 Neuroscience 361 0785120 Neurosurgery 43 0795014 Neurotology 6 0785111 Neurotoxicology 11 0760050 Neurotransmitters 12 1013080 Neutron Scattering 10 0316015 New Music 17 0902001 New Product Development 35 0106104 New Zealand 77 0104113 Newly Independent States (NIS) 4 0107306 Nicaragua 26 0760056 Nicotine 39 0101515 Niger 8 0101516 Nigeria 19 1002084 Nitrogen Fixation 0 1015720 Noise 24 1007007 Noise Pollution 5 1015725 Noise Prediction (Aircraft) 0 1015730 Noise Reduction 5 0203003 Non-alcoholic Beverages 5 0150005 Non-Aligned/Third World Nations 0 0801066 Non-Criminal Law 1 0606020 Non-Destructive Evaluation (NDE) 1 0304003 Non-Fiction 161 1013060 Non-neural Plasma 0 0407007 Non-Violent/White-Collar Crime 0 0303019 Non-Western Art 3 0309051 Non-Western History 1 1013057 Nonlinear Dynamics 14 0414050 Nonverbal Communication 0 0105000 North America 39 0309052 North American History 9 0150006 North Atlantic Treaty Org. (NATO) 6 0110014 North Sea 1 0101300 Northern Africa 4 0103300 Northern Asia 2 0104200 Northern Europe 2 0120002 Northern Hemisphere 0 0403060 Northern Studies 23 0104206 Norway 33 0312038 Norwegian Language/Literature 4 0607044 Novel Device Concepts 2 1002104 Novel Mechanisms/Non-Specific Resistance 0 0304007 Novels 28 1015735 Nuclear Astrophysics 6 1003011 Nuclear Chemistry 8 0609027 Nuclear Engineering 36 1270035 Nuclear Explosions, Detection 3 1012001 Nuclear Fission 2 1270040 Nuclear Fuels, Depleted Uranium 0 1270045 Nuclear Fuels, Enrichment 0 1270050 Nuclear Fuels, Environmental Effects 2 1270055 Nuclear Fuels, Feed Processing 1 1270060 Nuclear Fuels, Reprocessing 1 1270062 Nuclear Fuels, Safeguards 5 1270065 Nuclear Fuels, Storage 3 1270070 Nuclear Fuels, Thorium Reserves 0 1270075 Nuclear Fuels, Transport 0 1270080 Nuclear Fuels, Uranium Reserves 0 1270095 Nuclear Fuels, Waste Disposal 2 1270085 Nuclear Fuels, Waste Management 8 1270090 Nuclear Fuels, Waste Processing 2 1012005 Nuclear Fusion 1 1270100 Nuclear Fusion, Kinetics 1 1270105 Nuclear Fusion, Plasma Research 3 1230035 Nuclear Materials Monitoring 6 0606021 Nuclear Materials Transport 2 0710090 Nuclear Medicine 49 1013023 Nuclear Physics 42 1270115 Nuclear Power, Auxiliary Reactors 0 1270120 Nuclear Power, Breeding Reactors 2 1270125 Nuclear Power, Construction 1 1270130 Nuclear Power, Fuel Cycle 4 1270135 Nuclear Power, Non-Breeding 0 1270140 Nuclear Power, Process Heat Reactors 1 1270145 Nuclear Reactor Technology 7 1270150 Nuclear Reactor, Control Systems 1 1270155 Nuclear Reactor, Environmental Effects 1 1270160 Nuclear Reactor, Experimental 0 1270165 Nuclear Reactor, Fuel Elements 3 1270170 Nuclear Reactor, Fuel Handling 3 1270175 Nuclear Reactor, Plutonium Production 0 1270180 Nuclear Reactor, Propulsion 0 1270185 Nuclear Reactor, Reactor Safety 4 1270190 Nuclear Reactor, Reactor Theory 2 1012004 Nuclear Safety 9 1270000 Nuclear Science and Technology 48 1012000 Nuclear Sciences 50 1104009 Nuclear Strategy 0 0404059 Nuclear Survivability 2 0609028 Nuclear Technology 23 1104005 Nuclear Warfare 17 1270203 Nuclear Weapons, Design 5 1270204 Nuclear Weapons, Safety 13 1270200 Nuclear Weapons, Testing 6 0606022 Nuclear/Radioactive Waste Disposal 8 1012003 Nuclear/Radioactive Wastes 9 0755045 Nucleic Acid Sequencing 37 0790010 Nucleic Acid Structure/Function 41 0760053 Nucleic Acids 51 1010009 Number Theory 24 1010010 Numerical Analysis 14 1010017 Numerical Models 8 0321000 Numismatics 12 0785125 Nurse Practitioner 25 0201043 Nursery Stock 6 0785130 Nursing 559 0502027 Nursing Education 174 0730060 Nursing Homes 15 0502028 Nutrition Education 62 0710095 Nutrition/Dietetics 417 1002184 Nutritional Physiology 9 0203015 Nuts 1 0715145 Obesity 187 0785135 Obstetrics/Gynecology 140 0725020 Occupational Health and Safety 151 0725035 Occupational Hygiene 18 0725039 Occupational Medicine 26 1008140 Ocean Acoustics 7 1275030 Ocean and Ocean Energy Systems 6 1008145 Ocean Chemistry 12 1011001 Ocean Mining 6 1008235 Ocean Modeling 7 1008150 Ocean Optics 3 0606076 Ocean Resources Extraction 0 1016125 Ocean Surveillance 10 0106000 Oceania (Including Australia) 0 1008003 Oceanographic Facilities 5 1008004 Oceanography 125 0110000 Oceans and Seas 90 1002107 Odorant Discrimination 4 0901004 Office Automation 0 0606074 Offshore Platforms and Structures 0 1260065 Oil Shales/Tar Sands Combustion 1 0203016 Oils and Fats 4 0203017 Oilseeds 6 0705071 Olfaction/Smell 28 0103508 Oman 12 0785140 Oncology 216 0785131 Oncology Nursing 61 0316007 Opera/Musical Theatre 78 1010011 Operations Research 38 0785145 Ophthalmology 73 0760055 Opiates 16 0607013 Optical Communications 9 1015740 Optical Equipment 23 1013017 Optics 100 1010041 Optimization 32 0607036 Optoelectronics 12 0785150 Optometry 35 0745012 Oral and Maxillofacial Surgery 12 1002199 Oral Biology 13 0715148 Oral Diseases 38 0745011 Oral Health 119 0309011 Oral History 32 0312131 Oral Literature 9 0601015 Orbital Mechanics 3 1015750 Orbital Position Estimation 2 1015760 Orbits 6 0316016 Orchestral Music 33 1104006 Ordnance 4 1003012 Organic Chemistry 42 1009120 Organic Coatings 1 0201069 Organic Farming 14 1235005 Organic Geochemistry 2 0150007 Organization of American States (OAS) 2 0417003 Organizational Theory and Behavior 28 1003030 Organometallic Chemistry 8 1003033 Organometallic Chemistry, Main Group 1 0780025 Organs 57 1002031 Ornithology 74 0785042 Orofacial Health 5 0715149 Orphan/Rare Diseases 22 0785152 Orthodontics 2 0785155 Orthopedics 104 1015765 Oscillations 3 0715331 Osteoarthritis 15 0715243 Osteogenesis Imperfecta 4 0785225 Osteology/Osteopathy 35 0715146 Osteoporosis 62 1100000 OTHER (ANY/ALL DISCIPLINES) 793 0715338 Otitis Media 14 0785160 Otorhinolaryngology 34 0715299 Otosclerosis 4 0770020 Outpatient 8 0715309 Ovarian Cancer 34 1015770 Oxygen-Hydrocarbon Rocket Engines 0 1001007 Ozone 13 0730076 Pacific Islands Health 8 0105605 Pacific Islands Trust Territory 3 0110015 Pacific Ocean 8 0103208 Pacific Rim 10 1020000 Packaging Sciences 27 0715150 Pain 144 0320006 Painting 127 0103510 Pakistan 19 1002180 Paleobiology 7 1005017 Paleontology 54 0730105 Palliative Care 65 1005026 Palynology 1 0107307 Panama 22 0705011 Pancreas 24 0715340 Pancreatic Cancer 21 0715152 Pancreatitis 7 1009166 Paper/Pulp 22 0106105 Papua New Guinea 4 0107212 Paraguay 9 1004066 Parallel Algorithms 1 1245010 Parallel Computer Architecture 2 1004078 Parallel Programming 3 0715247 Paralysis 16 0414010 Parapsychology 6 1002032 Parasitology 35 0502044 Parent Education 43 0503020 Parent Involvement 57 0710135 Parenteral Drugs 1 0715248 Parkinson's Disease 62 0901033 Parks & Recreation Management 36 1013024 Particle Physics 50 1008155 Particulate Optics 4 1015775 Passenger Aircraft 0 1009125 Passivity and Inhibition 0 0801025 Patents, Copyrights, Trademarks 4 1002181 Pathobiology 20 0765033 Pathogenesis 154 0785165 Pathology 189 0765035 Pathophysiology 117 0730065 Patient Care and Education 270 0730068 Patient Compliance 21 0770000 Patient/Volunteer Classification 8 1004022 Pattern Recognition 9 0606058 Pavement Management Systems 13 0606023 Pavements 27 1105000 Peace/Disarmament/Amnesty 93 0785170 Pediatrics/Paediatrics 350 0407001 Penology/Correctional Institutions & Procedur 15 0760060 Peptides 12 0902002 Performance Management 13 0316000 Performing Arts 446 0715155 Perinatal Disorders 19 0775036 Perinatal Health 33 0715157 Periodontal Diseases 14 0785175 Periodontics 18 0770011 Person With a Disability (Health/Safety/Medic 90 0901034 Personnel 21 1015780 Perturbation Theory 0 0107213 Peru 18 0201044 Pest Management 111 0201045 Pesticides 56 1003013 Petroleum Chemistry 9 1260070 Petroleum Combustion 1 0611000 Petroleum Engineering 22 1005018 Petroleum Science 33 1005019 Petrology 23 1005046 Petrophysics 3 0795016 Pharmaceutical Aerosols 4 0740025 Pharmaceuticals 180 0710136 Pharmacoeconomics 17 0710141 Pharmacoepidemiology 6 0740085 Pharmacogenetics 46 0740084 Pharmacokinetics 57 0710100 Pharmacology 339 0785182 Pharmacotherapy 127 0710130 Pharmacy 138 0502045 Pharmacy Education 23 1015785 Phase Transformations 3 0103209 Philippines 26 0312133 Philosophical Literature 5 0317000 Philosophy 231 0309019 Philosophy of Friendship/Love 1 0312123 Philosophy of Language 1 1010061 Philosophy of Mathematics 0 1014012 Philosophy of Science 12 0795012 Phlebology 3 0414058 Phobias 0 0410003 Phonology 3 0710103 Photobiology 4 1220055 Photochemistry 4 0607045 Photoelectric Cells 0 0612000 Photogrammetry 15 0313003 Photography 188 1013069 Photon Science & Technology 6 1013068 Photonics 35 1002033 Photosynthesis 2 1240020 Photovoltaic Materials 12 0607033 Photovoltaics 21 0401002 Physical Anthropology 8 1002182 Physical Biology 3 1003014 Physical Chemistry 34 0502029 Physical Education 27 0745087 Physical Fitness 125 1005004 Physical Geography 7 1005009 Physical Geology 8 0775015 Physical Growth/Retardation 0 1270205 Physical Isotope Separation 0 0785180 Physical Medicine and Rehabilitation 22 1008006 Physical Oceanography 18 1013000 Physical Sciences 290 0775037 Physical Senses, Other 1 1003064 Physical-Organic Chemistry 1 0785091 Physician/Patient Relationship 19 1013018 Physics 445 0706040 Physiological Controls and Systems 6 1002034 Physiological Processes 43 0414011 Physiological Psychology 4 0775000 Physiological/Development Process 18 1002194 Physiology 248 0785181 Physiotherapy 28 1007040 Phytoremediation 0 1009130 Piezoelectric/Electrostrictive Mechanisms 1 0201061 Pig Science 7 0705060 Placenta 0 1015795 Planetary Environments 19 1005043 Planetary Geology 13 1015800 Planetary Orbits 5 1013030 Planetary Studies 78 0411000 Planning/Policy Studies 29 1002035 Plant Breeding 35 1002036 Plant Diseases/Pathology 44 1002037 Plant Genetics 38 1215020 Plant Genome 17 1002038 Plant Nutrition 14 1002039 Plant Physiology/Morphology 16 1002040 Plant Sciences 167 1002064 Plant Taxonomy 12 1002041 Plant Virology 9 0201046 Plant/Soil Nutrient Bioavailability 8 0607015 Plasma Electronics 2 1013025 Plasma Physics 37 1002073 Plasmids 0 0785230 Plastic/Reconstructive Surgery 44 0609029 Plasticity 25 0503021 Play 14 0304012 Playwriting/Screenwriting 122 0785227 Podiatry 15 0304004 Poetry 294 0725025 Poison Control 11 0104507 Poland 43 1005047 Polar Sciences 33 0312138 Polish Language/Literature 8 0412005 Political Behavior 16 0408011 Political Economics/Economy 24 0409005 Political Geography 7 0412039 Political History 50 0412028 Political Methodology 8 0412040 Political Participation 35 0412020 Political Parties 16 0412041 Political Philosophy 14 0412042 Political Rights 16 0412000 Political Science 403 0412006 Political Theory 43 0501004 Politics of Education 0 0201047 Pollen and Pollination 9 1225010 Pollution Control 153 1007036 Pollution Prevention 173 1003039 Polymer Chemistry 14 1009013 Polymer Science 49 1009008 Polymeric Materials 19 0106106 Polynesia 0 0413004 Population Biology 24 0413005 Population Control 9 0413009 Population Forecasting 3 0413015 Population Geography 4 0413000 Population Studies 139 0413020 Population Studies--Developing Countries 5 0413007 Population Transfers 0 0104313 Portugal 45 0312040 Portuguese Language/Literature 7 0715073 Post-Partum Depression 0 0203018 Poultry Products 14 0201048 Poultry Science 10 0404013 Poverty and the Poor 277 1275035 Power Conversion Systems 13 1275040 Power Plants, Renewable Energy 5 0309053 Pre-Columbian Studies 4 0506000 Pre-School Education 38 1001006 Precipitation 11 1013081 Precision/Measurement Science 7 0504010 Precollegiate Education--Art 11 0504011 Precollegiate Education--Bilingual 2 0504012 Precollegiate Education--Economics 3 0504013 Precollegiate Education--English 5 0504014 Precollegiate Education--Health 2 0504015 Precollegiate Education--Humanities 3 0504016 Precollegiate Education--Minority 2 0504017 Precollegiate Education--Science/Mathematics 80 0504018 Precollegiate Education--Social Sciences 12 0504019 Precollegiate Education--Special Education 2 0504020 Precollegiate Education--Vocational 0 0775020 Pregnancy 90 0715160 Pregnancy Disorders 24 0775021 Pregnancy Prevention 32 0775025 Prenatal Factors 44 0745007 Prescription Drugs 30 0755050 Preservation of Organs/Tissue 2 0745050 Preventive Dentistry 6 0745055 Preventive Medicine 74 0901036 Price Change 0 0730051 Primary Care 105 1002191 Primatology 12 0405002 Print Media 89 0607047 Printed Circuits 0 0320007 Printmaking 61 0407011 Prison 32 0501005 Private & Parochial Education 11 1010012 Probability 29 0901053 Problem Solving 18 0605001 Process Development Engineering 9 0605016 Process Simulation and Control 1 1260125 Production and Refining 8 0201049 Production Economics and Management (Agricult 20 0608013 Production Engineering 9 0901062 Production/Operations Management 19 1260130 Products/By-products, Energy 3 0715313 Progeria 1 1004041 Program Verification 0 0901084 Project Management 34 1015815 Propellant Combustion 2 1015810 Propellant Properties 1 1015805 Propellants 4 1260135 Properties, Fossil Fuels 0 0801039 Property 16 0609030 Propulsion 38 1015825 Propulsion System Performance 12 0609085 Propulsive Flows 1 0760065 Prostaglandins 0 0715280 Prostate Cancer 40 0740030 Prosthetic Device, Hearing 0 0740035 Prosthetic Device, Heart 0 0740040 Prosthetic Device, Kidney 0 0740045 Prosthetic Device, Limbs 5 0740050 Prosthetic Device, Neural 4 0740055 Prosthetic Device, Pancreas 0 0740060 Prosthetic Device, Speech 1 0740065 Prosthetic Device, Vision 0 0740070 Prosthetic Devices (General) 22 1002093 Protein Synthesis 10 0760070 Proteins and Macromolecules 116 0760071 Proteomics 135 0715328 Psoriasis 10 0785226 Psychiatric Nursing 6 0785185 Psychiatry 126 0414071 Psychoanalysis 13 0414012 Psychobiology 3 0414020 Psychodynamics 0 0410006 Psycholinguistics 6 0414000 Psychology 384 0414034 Psychology of Aging 13 0414046 Psychology of Exceptional Children 1 0414052 Psychology of Reading 0 0414060 Psychology of Women 2 0414024 Psychology/Abused Children 5 0414026 Psychology/Abused Wives 3 0414013 Psychometrics 6 0785187 Psychoneuroimmunology 5 0710105 Psychopathology 30 0715162 Psychosis 8 0745057 Psychosocial Therapy 76 0715241 Psychosomatic Disorders 8 0745060 Psychotherapy 40 0404072 Public Access Programs for People With Disabi 24 0901037 Public Administration 120 0419000 Public Affairs 43 0419003 Public Affairs Planning/Policy 20 0501006 Public Education 110 0901054 Public Finance 15 0801059 Public Finance Law 0 0730070 Public Health 827 0801030 Public Health Law 8 0411003 Public Planning/Policy 306 0606055 Public Policy Systems Analysis 26 0901039 Public Relations 44 0801057 Public Safety Law 36 0405012 Public Television/Radio Stations Support 10 0801053 Public Utilities Law 0 0405013 Publishing 120 0715165 Pulmonary Diseases 139 0901040 Purchasing/Procurement 6 1220035 Pyrolysis Chemistry 1 1016130 Pyrotechnic Devices 0 0103509 Qatar 9 0608014 Quality Control (Engineering) 6 0730066 Quality of Care 113 0416023 Quality of Life Programs 306 0901041 Quality/Product Control 27 1013063 Quantum Chaos 1 1003020 Quantum Chemistry 2 1004011 Quantum Computing 9 0607077 Quantum Electronics 15 1013040 Quantum Mechanics 6 1013082 Quantum Physics 13 0607083 Quantum Structures 3 1004058 Queuing 1 0404014 Racism/Race Relations 84 0607016 Radar 23 1015835 Radar Approach Control 0 1015840 Radar Attenuation 0 1015845 Radar Detection 6 1015850 Radar Navigation 3 0607049 Radar Systems 4 1015855 Radar Tracking 3 1270210 Radiation & Shielding Physics 4 1002009 Radiation Biology 29 1220040 Radiation Chemistry 9 1215025 Radiation Effects 22 1270215 Radiation Effects on Instrumentation 0 1013043 Radiation Heat Transfer 3 1270220 Radiation Instrumentation 2 1013026 Radiation Physics 21 1270225 Radiation Sources 7 0313004 Radio 104 1015860 Radio Transmission 10 1013076 Radio/Radar Astronomy 18 1240040 Radioactive Materials 13 0401014 Radiocarbon Dating 0 1220060 Radiochemistry 12 1270227 Radioisotopes 3 0785190 Radiology 98 1230040 Radiometric Techniques 5 1215030 Radionuclide Effects 4 1270228 Radiophorus Energy 0 1013031 Radiosources, Infrared, X-ray, Gamma Ray 19 0745062 Radiotherapy 16 1215033 Radon 6 1016135 Ramjet/Scramjet Propulsion Systems 0 1010045 Random Fields 0 0607017 Range and Tracking Systems 2 0201050 Range Management 23 0404015 Rape/Sexual Abuse 47 1015865 Rare Earth Elements 0 0605018 Reaction Engineering 3 0502030 Reading Education 59 0901042 Real Estate 6 1004047 Real-Time Computing 2 0760075 Receptors 53 0760080 Recombinant DNA 10 1015870 Recoverable Spacecraft 2 1106000 Recreation and Leisure Studies 110 1007013 Recycling 49 0110016 Red Sea 1 1103023 Reference Materials 18 0416024 Refugee/Immigrant Services 52 0403015 Refugees 63 0408012 Regional Economics 5 0411004 Regional Planning/Policy 23 0307007 Regional/Urban Design 23 0780030 Registries 10 1002010 Regulatory Biology 2 0415012 Rehabilitation for People With Disabilities 46 0415000 Rehabilitation/Therapy 143 0415001 Rehabilitation/Therapy, Emotional/Social 15 0415002 Rehabilitation/Therapy, Occupation/Vocation 45 0415003 Rehabilitation/Therapy, Physical 57 1013032 Relativity 2 0745063 Relaxation Techniques 2 0608015 Reliability (Engineering) 3 0502046 Religious Education 29 0309057 Religious History 57 0312134 Religious Literature 29 0318000 Religious Studies 307 0507006 Remedial Education 4 1005020 Remote Sensing 78 1016140 Remote Sensing Technology 20 1015875 Remotely Piloted Vehicles 1 0309012 Renaissance History 34 0309041 Renaissance Studies 42 1275000 Renewable Energy Sources 151 1002042 Reproduction 54 0715167 Reproductive Disorders 51 0710110 Reproductive Endocrinology 5 0710115 Reproductive Physiology 14 0412044 Reproductive Rights 38 1103002 Research Libraries 22 0780000 Research Resources (Health/Safety/Medical) 90 0607063 Resistors 0 1003028 Resonance Spectroscopy 9 1275045 Resources/Availability, Renewable Energy 21 0715277 Respiratory Diseases 175 0705065 Respiratory System 143 0319000 Restoration and Preservation 66 0745090 Resuscitation 11 0715228 Retinitis Pigmentosa 10 0901100 Retirement Studies 15 0760090 Retrovirus 7 0715142 Rett Syndrome 11 1015880 Reusable Spacecraft 2 0715260 Reye's Syndrome 0 0715170 Rheumatic Diseases 66 0785195 Rheumatology 79 0715275 Rhinitis 2 0411005 Risk Factors/Analysis 71 1015885 Risk, Astronautics 4 1007028 Rivers/Streams 66 0419006 Road/Highway Safety 60 0607019 Robotics 50 0606024 Rock Mechanics 1 1015974 Rocket Propulsion/Fuels 6 1015890 Rocket Vehicles 5 0104314 Romania 26 0601006 Rotary Wing Aircraft 5 1015900 Rotor Dynamics 3 0403021 Runaway Youth 6 0901099 Rural Development 78 0501007 Rural Education 16 0409015 Rural Geography 4 0730099 Rural Health 84 0411006 Rural Planning/Policy 27 0416025 Rural Services 64 0403043 Rural Studies 41 0104114 Russia 73 0104115 Russian Federation 17 0309054 Russian History 4 0312042 Russian Language/Literature 8 0101101 Rwanda 26 0715175 Safety 312 1225020 Safety Engineering 97 0108009 Saint Lucia 2 0901038 Sales 14 0705076 Salivary Glands 11 0105606 Samoa 4 1010039 Sampling Theory 0 0606025 Sanitary Engineering 16 0606026 Sanitary Engineering, Environmental Impacts 6 0101517 Sao Tome & Principe 0 1015910 Satellite Attitude Control 0 0607055 Satellite Communication 7 1015915 Satellite Control 3 1016145 Satellite Detection/Classification 1 1015920 Satellite Doppler Positioning 0 1015925 Satellite Guidance 4 1015930 Satellite Tracking 1 1015935 Satellite-to-Satellite Tracking 0 0103612 Saudi Arabia 9 0104201 Scandinavia 9 1013067 Scatter/Rough Surfaces 0 1010048 Scattering 9 1002111 Scavenging and Co-Precipitation 0 0715177 Schizophrenia 46 0501009 School Desegregation 2 0404016 School Food Programs 8 0501010 School Organization 4 1000000 SCIENCE & TECHNOLOGY/MATHEMATICS/COMPUTER SCI 411 1014014 Science and Society 90 0502031 Science Education 278 0312135 Science Literature 53 1014002 Science Planning/Policy 52 1014000 Science, General/Other 402 1014015 Science--Humanistic Emphasis 27 1014013 Science/Engineering Studies--Developing Count 2 1014001 Scientific Instrumentation 75 0715229 Scleroderma 12 0104407 Scotland 29 0755060 Screening of Drugs/Agents 66 0320008 Sculpture 110 0110012 Sea of Japan 0 1008007 Sea Water Properties 2 0203019 Seafood 11 0410015 Second Language Acquisition 10 1008160 Sediment 22 1005028 Sedimentary Geochemistry 2 1005021 Sedimentology 9 0201051 Seed Production 8 1008165 Seismic Acoustics 3 1005022 Seismology 8 0715061 Seizures 17 0416026 Self-Help Projects 6 0410009 Semantics 6 1009015 Semiconductors 36 0101518 Senegal 17 0715180 Senile Dementia 7 0416027 Senior Citizen Service Programs 76 0607058 Sensing Devices and Transducers 81 1002185 Sensory Physiology 8 0705070 Sensory System 52 0605007 Separation Process 1 1220045 Separations Chemistry 4 0715346 Septicemia 8 0104121 Serbia and Montenegro 14 0785200 Serology 2 0503047 Service Learning 21 1010023 Set Theory 1 0307008 Set/Theatre Decoration/Design 21 0715334 Severe Acute Respiratory Syndrome (SARS) 2 0502032 Sex Education 11 0404012 Sexism 9 0414019 Sexual Behavior 71 0404018 Sexual Harassment 29 0414018 Sexuality 47 0715182 Sexually Transmitted Diseases 123 0101409 Seychelles 0 1015938 SH Waves 0 1008170 Shallow Water Bottom Interaction 0 1008175 Shelf Basin Dynamics 0 1016150 Ship/Aircraft Fuels 0 0715287 Sickle Cell Disease 13 0101519 Sierra Leone 3 1010052 Signal Analysis 4 0607074 Signal Processing 30 1002197 Signal Transduction (Sensory/Cellular) 94 0103407 Singapore 18 1275050 Site Geology, Renewable Energy 1 1104026 Situational Awareness 14 0715184 Sjogren's Syndrome 4 0715273 Skeletal Diseases 38 0715292 Skin Cancer 24 0715185 Skin Diseases 74 0312044 Slavic Language/Literature 5 0715187 Sleep Disorders 71 0104116 Slovak Republic/Slovakia 17 0104315 Slovenia 18 0901043 Small Business 90 1009135 Small Structures 0 0404019 Smoking Behavior 75 0725037 Social & Economic Environment 133 0417041 Social Change 219 0418007 Social Control 0 0408045 Social Economy 23 0901104 Social Enterprise 20 0416005 Social Entrepreneurship 23 0409006 Social Geography 16 0309014 Social History 46 0417004 Social Measurement and Indicators 15 0417029 Social Movements 43 0417042 Social Organization 20 0414014 Social Psychology 33 0502033 Social Science Education 58 0404057 Social Sciences--Humanistic Emphasis 600 0416000 Social Services 538 0404017 Social Services Delivery 93 0416028 Social Services Planning/Policy 34 0417005 Social Stratification/Mobility 15 0417043 Social Structure 20 0416030 Social Welfare Planning/Policy 43 0416029 Social Welfare Studies--Developing Countries 9 0502065 Social Welfare/Public Affairs Education 18 0416032 Social Work 112 0404056 Social/Behavioral Science Planning/Policy 17 0416013 Social/Recreation Services for People With Di 22 1002043 Sociobiology 12 0408044 Socioeconomics 44 0418000 Sociolegal Studies 13 0410014 Sociolinguistics 16 0417006 Sociological Theory 14 0417000 Sociology 247 0502034 Sociology Education 12 0417019 Sociology of Language 12 0417007 Sociology of Science 14 0417031 Sociology of Sex and Gender 6 0417044 Sociology of the Family 4 1004171 Software Engineering 66 0606027 Soil Mechanics & Foundations 3 0201052 Soil Sciences 88 0201053 Soil Sciences, Conservation 18 0201054 Soil Sciences, Erosion 20 0201055 Soil Sciences, Soil Genesis 0 0606028 Soil/Structure Interaction 2 1275055 Solar 68 1013077 Solar Astronomy 29 0609032 Solar Heating 7 1001035 Solar Phenomena 8 1013027 Solar Physics 26 1013033 Solar Studies 47 1275060 Solar, Biomass Conversion 4 1275065 Solar, Collectors/Concentrators 5 1275070 Solar, Heat Storage 6 1275075 Solar, Photochemical Conversion 1 1275080 Solar, Photovoltaic Conversion 17 1275085 Solar, Photovoltaic Power Systems 22 1275095 Solar, Thermal Power Systems 17 1275090 Solar, Thermoelectric Conversion 8 0609033 Solid Mechanics 5 1015940 Solid Propellant Rocket Engines 3 1003041 Solid State Chemistry 17 0607020 Solid State Electronics 13 1013028 Solid State Physics 17 0606029 Solid Waste Disposal 17 1009140 Solid/Liquid Interfaces 0 1009145 Solid/Solid Interfaces 0 0106107 Solomon Islands 1 0101204 Somalia 3 0607052 Sonar Systems 3 0101410 South Africa 45 0107200 South America 30 0106110 South Pacific 1 0106109 South Sea Islands 0 0103400 Southeast Asia 31 0312132 Southeast Asian Languages/Literature 9 0101400 Southern Africa 5 0103500 Southern Asia 19 0104300 Southern Europe 3 0120003 Southern Hemisphere 1 0104117 Soviet Bloc 3 1270235 Space & Defense Power Systems 3 1015945 Space Mechanics 9 1015000 Space Sciences 250 1015948 Space Stations 9 1016155 Spacecraft Navigation Technology 5 0104316 Spain 59 0312046 Spanish Language/Literature 9 0507000 Special Education 79 0785000 Specialties of Medical and Allied Fields 10 1001040 Spectral Estimation 2 1013034 Spectroscopy 50 0710120 Speech Pathology 47 0502035 Speech/Communication Education 15 0203020 Spices and Flavorings 1 0715294 Spina Bifida 12 0715249 Spinal Cord Diseases 71 0715290 Spinal Cord Injury 80 0715347 Spine 22 0715295 Spongiform Encephalopathies 5 0785205 Sports Medicine 57 0414072 Sports Psychology 5 1108000 Sports/Athletics 134 0103511 Sri Lanka (Ceylon) 20 1013083 Standard Reference Data 0 1010013 Statistics 184 0715183 STD Prevention 42 1009164 Steel 13 0606030 Steel Structures 1 0760001 Stem Cell 108 1002023 Stem Cell Biology 73 0745075 Sterilization 3 0760085 Steroids 6 0715190 Stillbirth 3 1015950 Stimulated Emission Devices 0 1010033 Stochastic Processes 5 0201056 Stockyards 0 0715342 Stomach (Gastric) Cancer 6 1008180 Strait Dynamics 0 1104024 Strategic Defense Initiative (SDI) 0 1005023 Stratigraphy 9 1015955 Stratospheric Warming 3 0715195 Stress 52 1002115 Stress Response, Neuroanatomy 0 0715200 Stroke 147 0606031 Structural Analysis 12 1002170 Structural Biology 46 1003065 Structural Chemistry 2 0606032 Structural Design 18 0606033 Structural Dynamics 10 0606034 Structural Engineering 28 1005010 Structural Geology 12 1009105 Structural Materials 21 0609090 Structural Mechanics 8 1009150 Structural Polymers 0 0319003 Structural/Architectural 4 0606035 Structure Reliability 9 0790000 Structure/Function (Health/Safety/Medical) 16 0601007 Structures & Materials (Aero./Astro. Engineer 4 0503040 Student Enrichment 64 0101600 Sub-Saharan Africa 83 0150000 Subdivisions: Economic/Linguistic/Political 0 1016165 Submarine Detection Technology 2 1008185 Submarine Geomorphology 0 1016170 Submersible Vehicles 4 0404055 Substance Abuse 293 0745080 Substance Abuse Prevention 118 0101309 Sudan 8 0715205 Sudden Infant Death Syndrome 13 0203021 Sugar 6 0404020 Suicide 49 1004025 Supercomputers 7 1013035 Superconductivity 17 1015960 Supersonic Aircraft 1 1003022 Surface Chemistry 10 1008195 Surface Hydrodynamic Processes 0 1260145 Surface Methods, Fossil Energy 0 1013049 Surface Physics 10 1009016 Surface Science 13 1016175 Surface Warfare 4 1008200 Surface Waves 0 1240055 Surfaces and Interfaces 6 0605012 Surfactants 1 1008205 Surfzone Waves, Turbulence 1 0785210 Surgery 282 0107214 Suriname 3 0607021 Surveillance Systems 24 0606056 Surveying and Mapping 26 0404021 Surveys & Survey Research 31 0201104 Sustainable Agriculture 104 0140006 Sustainable Development 193 0101411 Swaziland 13 0104207 Sweden 34 0312048 Swedish Language/Literature 5 0104408 Switzerland 21 1002117 Symbiosis 2 0710140 Symptom Management 44 1013036 Synchrotron Radiation 8 1002123 Synecology 0 1260160 Synfuels 2 0410013 Syntax 2 0103614 Syria 9 0715306 Syringomyelia 2 1002011 Systematic Biology 69 1002186 Systematics 22 0607101 Systems Engineering 40 0607022 Systems Theory 7 0103210 Taiwan 38 0104118 Tajikistan 26 0101205 Tanzania 41 0408034 Tariff Policy 0 0705074 Taste 34 0901045 Taxes and Taxation 34 0715330 Tay-Sachs Disease 1 0203022 Tea 4 0503022 Teacher Attitudes 5 0502036 Teacher Education 213 1016000 Technology 1076 1016002 Technology Assessment 28 0795000 Technology Assessment/Transfer/Outreach (Hlth 176 1016003 Technology Planning/Policy 17 1016004 Technology Transfer 116 1005024 Tectonics 15 1016005 Telecommunications 50 1016006 Telecommunications Policy 2 0405014 Telecommunications--Educational Materials 5 0607059 Telematics 1 0795010 Telemedicine 17 0607023 Telemetry 7 1016185 Telemetry Technology 5 1015963 Telescopes 18 0313010 Television 139 0130006 Temperate Zones 0 0715324 Temporomandibular Joint Disorders 12 0775030 Teratology 2 1230025 Terrestrial Ecology 32 0404022 Terrorism 61 0320009 Textile/Weaving Arts 31 1017000 Textiles 29 0103408 Thailand 26 0715312 Thalassemia 7 0316018 Theater, Mime 14 0305004 Theatre/Film Criticism 32 1013029 Theoretical Physics 34 0415010 Therapeutic Recreation 5 0795005 Therapy Evaluation 71 1003037 Thermal Analysis 11 1215035 Thermal Effects 15 1210020 Thermionic Convertors 1 0607102 Thermionic Sciences 2 1013037 Thermodynamics 12 0609034 Thermodynamics Engineering 5 1210025 Thermoelectric Generators 3 0609035 Thermosciences Engineering 6 1009017 Thin Film, Technology and Applications 5 0785211 Thoracic Surgery 26 0715226 Thrombosis 23 0785231 Thyroid Functions 9 0103211 Tibet 6 1275100 Tidal and Wave Energy 4 0901066 Time and Motion Studies 1 0780020 Tissue Culture 85 0710014 Tissue Engineering 38 0201057 Tobacco 110 0101520 Togo 3 0607103 Tomography 11 1010014 Topology 11 0801045 Torts 1 0715250 Tourette's Syndrome 8 0901103 Tourism 127 1007024 Toxic Substances--Environmental 106 1007009 Toxicology 174 1104025 Tracking/Detection Devices (Defense) 15 0408042 Trade 69 0801049 Trade Regulation Law 5 0606036 Traffic Engineering 17 0901072 Training and Development 316 1002072 Transcription 8 0501011 Transfer Students 0 0403026 Transgender 67 0780041 Transgenic Animals 7 1002130 Transgenics 7 0304005 Translation 86 0755016 Translational Research 276 0710125 Transplantation Immunology 29 0745065 Transplantation of Organs 77 1015965 Transport Aircraft 4 0605008 Transport Phenomena 6 0607087 Transport Simulations 1 1260150 Transport/Handling, Fossil Fuels 5 0419004 Transportation 406 0606037 Transportation Engineering 82 0606040 Transportation Engineering (Environmental Imp 28 0606041 Transportation Engineering (Intermodal Studie 4 0606038 Transportation Engineering Design 30 0606039 Transportation Engineering Economics 10 0606042 Transportation Engineering Planning/Policy 66 0606043 Transportation Surveys 1 1255055 Transportation, Energy Use 27 0715210 Trauma 100 0715213 Trauma, Cell Biology 0 0715251 Traumatic Brain/Head Injury 50 0715197 Traumatic Stress Disorders 30 0801031 Trial Law 1 0609044 Tribology 3 1010015 Trigonometry 0 0108010 Trinidad and Tobago 12 1002187 Tropical Biology 15 1008210 Tropical Cyclone Motion 2 0715284 Tropical Diseases 17 0201106 Tropical Forestry 9 0785215 Tropical Medicine 21 0130007 Tropical Zones 4 0715261 Tuberculosis 95 0715214 Tuberous Sclerosis 13 0715215 Tumor Immunology 9 0715279 Tumors 96 0101310 Tunisia 15 0606044 Tunnels 4 0609036 Turbomachinery 3 0601008 Turbulence 12 1013046 Turbulent Cascade Phenomena 0 0103702 Turkey 55 0403062 Turkish Studies 17 0104119 Turkmenistan 21 0309055 Twentieth Century History 36 0101206 Uganda 41 0104317 Ukraine 50 1003047 Ultrafast Chemistry 1 1009155 Ultrafine Microstructure 0 0607091 Ultramicroelectrodes 0 0607024 Ultrasonic Technology 7 0706035 Ultrasound 36 0790015 Ultrastructure (Health/Safety/Medical) 0 0505010 Undergraduate Education 229 1016190 Undersea Warfare 7 0606072 Undersea Workstations/Vehicles 4 1016195 Underwater Explosive Warheads 1 0801055 Unfair Competition Law 0 0605002 Unit Operations Engineering 0 0103512 United Arab Emirates 8 0104409 United Kingdom (Great Britain & Northern Irel 84 0105600 United States 190 0307010 Universal Design 3 1107000 University/Industrial Partnership 91 1016200 Unmanned Fixed Wing Aircraft 3 1015970 Unmanned Spacecraft 3 0101521 Upper Volta 0 0408043 Urban Economics 6 0501012 Urban Education 3 0409007 Urban Geography 8 0309015 Urban History 9 0411007 Urban Planning/Policy 100 0417023 Urban Sociology 1 0403044 Urban Studies 51 0715333 Urinary Tract Disorders 34 0705075 Urogenital System 44 0785220 Urology 83 0107215 Uruguay 10 0105607 USA, Atlantic Central 0 0105608 USA, Great Lakes 6 0105609 USA, Midwest 2 0105610 USA, New England 11 0105611 USA, Northeast 2 0105612 USA, Northwest 2 0105613 USA, Southeast 21 0105614 USA, Southwest 5 0715310 Uterine Cancer 4 0901046 Utilities 10 0104120 Uzbekistan 28 0740075 Vaccine 99 1225015 Vacuum Engineering 18 1013084 Vacuum Science 22 0608016 Value Engineering 0 0502037 Values/Moral Education 4 0106108 Vanuatu 2 0710142 Vascular Biology 78 0715039 Vascular Disease 77 0203023 Vegetables 12 1205040 Vehicle Design 18 0606068 Vehicle Impact 6 0715220 Venereal Diseases 0 0107216 Venezuela 18 0901080 Venture Capital 5 1005025 Vertebrate Paleontology 12 1002044 Vertebrate Physiology 4 0607035 Very Large Scale Integration (VLSI) 0 1002120 Vestibular Transduction 1 0403016 Veterans 37 0416031 Veterans Services 15 0201058 Veterinary Medicine 157 0201059 Veterinary Toxicology 9 0407008 Victimization/Compensation 21 0103409 Vietnam 26 0404032 Violence Prevention 167 0404023 Violent Behavior 49 0407009 Violent Crime 38 1002045 Viral Studies (Virology) 102 0108011 Virgin Islands 5 1002124 Virtual Reality 15 1008213 Visibility Imaging 1 1002046 Vision 113 0320000 Visual Arts 474 0705072 Visual Perception/Processing 15 1002125 Visualization 31 0730080 Vital Statistics 0 1002076 Vitamins/Metabolic Role 5 0316006 Vocal Music 19 0406003 Vocational Counseling 12 0416014 Vocational Services for People With Disabilit 26 0502038 Vocational/Technical Education 140 1005048 Volcanology 4 0403017 Volunteers 74 0501013 Volunteers (Education) 1 0715285 von Willebrand's Disease 6 0901060 Wage and Salary Administration 1 1016205 Warfare Technologies 43 1007025 Waste Management 89 0201060 Waste Management (Agriculture) 13 0202030 Waste Management Food Processing 3 1260155 Waste Management/Fossil Energy 2 1225025 Waste Processing Plants 5 0606045 Waste Water Treatment 34 1007008 Water Pollution 105 0606059 Water Quality 254 0606046 Water Resources Engineering 33 1007010 Water Resources, Environmental Impacts 118 0606047 Water Resources, Management/Planning 153 0606048 Water Supply 127 0606049 Water Treatment 65 1007014 Watershed 150 0606050 Waterways and Harbors 32 1010055 Wave Equations 1 1008220 Wave/Wake Dynamics 1 1008215 Waves/Currents 4 1016211 Weapons/Weapon Systems 69 1001009 Weather Modification 3 0201062 Weed Sciences 13 0606086 Welding 26 0416034 Welfare Reform 10 0103613 West Bank 12 0108000 West Indies 6 0101500 Western Africa 10 0103700 Western Asia 0 1008225 Western Boundary Currents 0 0309056 Western Civilization 21 0104400 Western Europe 8 0120004 Western Hemisphere 14 1007026 Wetlands 100 0201063 Wildlife 276 1275105 Wind Energy, General 27 0601009 Wind Tunnels 2 1275110 Wind, Climatology 1 1275115 Wind, Turbine Operation 5 1275120 Wind, Wind Energy Engineering 8 0203025 Wine 9 1004173 Wireless Sensor Networks 13 0509000 Women's Education 217 0730095 Women's Health 360 0309064 Women's History 20 0416033 Women's Social/Economic Services 152 0403018 Women's Studies 154 0201064 Wood 28 0201111 Wool 5 1004024 Word/Text Processing 0 0404024 Work Motivation 3 0417017 Worker Attitudes and Technology 5 0765040 Wound Healing 22 0502039 Writing/Composition Education 21 0745061 X-Ray 36 0110017 Yellow Sea 0 0103513 Yemen 15 0312049 Yiddish Language/Literature 3 0417045 Youth Development/Leadership 322 0901102 Youth Employment Opportunity Programs 34 0101102 Zaire 0 0101412 Zambia 15 0101413 Zimbabwe (Rhodesia) 22 1009165 Zinc 1 1002192 Zoological Parks 10 1002047 Zoology 43 0715329 Zoonotic Diseases 10