SPIN Keyword Thesaurus Code Description Occurrences 0730077 Aboriginal Health 51 0401005 Aboriginal Studies 67 0755055 Abortion (Induced) 9 0406004 Abortion Counseling 2 0605010 Absorption 5 0503001 Academic Achievement 164 0715005 Accidents 42 0901001 Accounting 178 1007011 Acid Precipitation 3 1009020 Acoustic Damping Mechanisms 2 1013041 Acoustic Reverberation 3 1016010 Acoustic Target Detection 4 1016020 Acoustic Tomography 2 0607025 Acoustic Waves 9 1013001 Acoustics 56 1016015 Acoustics Technology 25 0901058 Acquisitions/Mergers 1 1220005 Actinide Chemistry 3 0745059 Acupuncture 12 0404001 Addictions 218 1009025 Adhesion Mechanisms 5 0414028 Adjustment Psychology 0 0801001 Administrative Law 11 0710005 Adolescent Health 152 0403040 Adolescent Parenting 8 0775035 Adolescent Pregnancy 23 0414030 Adolescent Psychology 34 0414070 Adolescent Sexual Behavior 53 0403001 Adolescents 137 0404025 Adoption 10 0505001 Adult & Continuing Education 122 0404060 Adult Day Care 9 0403019 Adults 46 0715006 Adverse Effects 20 0901002 Advertising 63 0409009 Aerial Geography 4 1015110 Aerial Reconnaissance 5 0601001 Aerodynamics 30 1016025 Aerodynamics Technology 22 0601002 Aeroelasticity 1 0601003 Aeromechanics 6 0601000 Aeronautical/Astronautical Engineering 91 1015001 Aeronautics 127 1001014 Aeronomy 6 1003080 Aerosol Science 17 0785005 Aerospace Biomedicine 23 1015113 Aerospace Engineering 189 1015115 Aerospace Environments 32 1015117 Aerospace Operations/Safety 34 1016030 Aerospace Technology 204 0317001 Aesthetics 11 0503002 Affective Development 2 0103701 Afghanistan 68 0101000 Africa 191 0403002 African Americans 73 0312016 African Languages/Literature 24 0303010 African-American Art 19 0309062 African-American History 43 0403058 African-American Studies 39 0502050 After-School Programs 98 0710010 Aging/Gerontology 427 0201101 Agricultural Biotechnology 105 0201001 Agricultural Chemical Application 27 0201002 Agricultural Collectives/Cooperatives 14 0201003 Agricultural Commodities 49 0408001 Agricultural Economics 139 0201004 Agricultural Engineering 67 0201005 Agricultural Finance 34 0409011 Agricultural Geography 16 0309042 Agricultural History 12 0801002 Agricultural Law 16 0201006 Agricultural Management 115 0201007 Agricultural Planning/Policy 83 0201080 Agricultural Products, Physical Properties 10 0201085 Agricultural Products, Transport/Handling 27 0201000 Agriculture 745 0201022 Agriculture Conservation 117 0502001 Agriculture Education 139 0200000 AGRICULTURE/FOOD SCIENCES/FOODS 431 0201100 Agriculture/Food Studies--Developing Countrie 87 0201008 Agronomy 61 0715008 AIDS 576 0406006 AIDS Counseling 92 0715263 AIDS--Mental Health 58 0715264 AIDS--Perinatal/Pediatric 47 0715265 AIDS--Sexually Transmitted 159 0715266 AIDS--Substance Abuse 130 1015120 Air Breathing Engines 2 1015125 Air Navigation 6 1007005 Air Pollution 207 0419001 Air Safety 24 0419005 Air Transportation 60 1005001 Air/Sea Boundary Interactions 0 1016035 Aircraft Avionics 25 1016040 Aircraft Propulsion Technology 13 1015130 Airfoils 0 1016045 Airframe Design 3 0601004 Airframe Structures and Materials 7 0606070 Airport Runways 13 0105601 Alaska 33 0403053 Alaskan Natives 82 0104301 Albania 35 0502002 Alcohol Education 34 1265005 Alcohol Fuels 0 0404003 Alcohol/Alcoholism 300 0203002 Alcoholic Beverages 30 0745076 Alcoholism Prevention 121 0745077 Alcoholism Treatment 79 1010001 Algebra 39 0101301 Algeria 30 0417009 Alienation 1 1003045 Aliphatic Compounds 0 0785010 Allergy 70 0502040 Allied Health Education 36 0715344 Alopecia 6 0715315 Alpha-1 Antitrypsin Deficiency 14 0801046 Alternative Dispute Resolution Law 7 1205005 Alternative Fuels 168 0745056 Alternative Medicine 81 0503003 Alternative Modes Education 21 1014016 Alternatives to Animal Testing 32 1015140 Aluminum Compounds 4 0715232 Alzheimer's Disease 164 0303011 American Art 108 0309043 American History 565 0312124 American Literature 207 0316011 American Music 62 0107100 American Republics 12 0312017 American Sign Language 2 0403041 American Studies 377 1003050 Amino Acids 7 0755005 Amniocentesis 0 1009006 Amorphous Materials 1 1015145 Amplitude Distribution Analysis 0 0715202 Amputation 9 0715252 Amyotrophic Lateral Sclerosis (ALS) 27 1004090 Analog Computers/Computing 6 1010002 Analysis & Functional Analysis 17 1003008 Analytical Chemistry 47 0414001 Analytical Psychology 11 1215005 Analytical Techniques 23 0705000 Anatomical Systems/Sites 10 1002001 Anatomy 64 0309001 Ancient/Classical History 90 0309018 Ancient/Medieval Philosophy 7 0107201 Andes 6 0715286 Anemia 35 0785015 Anesthesiology 163 0101501 Angola 17 0201072 Animal Adoption 17 0201009 Animal Behavior/Ethology 85 1002002 Animal Breeding and Facilities, Scientific 44 0201011 Animal Care 209 0201012 Animal Communication 3 1002052 Animal Development 18 0201013 Animal Diseases/Pathology 168 0201014 Animal Drugs 17 0201065 Animal Ecology 59 0201015 Animal Feeds/Nutrition 81 0201016 Animal Genetics/Breeding 93 1215019 Animal Genome 30 0201017 Animal Housing 41 0755021 Animal Model 194 0201018 Animal Physiology/Morphology 31 0201102 Animal Reproductive Biology 48 1014003 Animal Research Policy 51 0201019 Animal Science 298 1002063 Animal Taxonomy 25 0201020 Animal Waste 17 0715236 Anorexia/Bulimia 10 0110001 Antarctic Ocean 7 0102000 Antarctica 24 0607026 Antennae 14 0607061 Antennae and Wave Guides 6 0715325 Anthrax 1 0401000 Anthropology 350 1016050 Anti-Submarine Technology 3 0740005 Antibiotics 20 0740010 Anticonvulsants 1 1015150 Antiferroelectricity 1 0108001 Antilles 3 0745089 Antiretroviral Therapy 54 0740011 Antisera 0 1015155 Antisubmarine Warfare 8 0801026 Antitrust Law 3 0740012 Antivirals 19 0715009 Anxiety 56 0607001 Applied Electronics 13 1010003 Applied Mathematics 102 1013085 Applied Physics 31 0414002 Applied Psychology 14 1006000 Applied Sciences 99 0417001 Applied Sociology 13 0607027 Applied Ultrasonics 2 1015160 Approach 2 1015165 Approach Control 0 1016001 Appropriate Technology 5 0201075 Aquacultural Engineering 23 0201066 Aquaculture/Hydroponics 83 1230015 Aquatic Ecology 176 0103601 Arab States 9 0110018 Arabian Gulf 2 0103501 Arabian Peninsula 0 0312018 Arabic Language/Literature 65 0901074 Arbitration/Collective Bargaining 4 0201105 Arboriculture 27 0402001 Archaeological Conservation 57 0402000 Archaeology 459 0402002 Archaeometry 4 0606001 Architectural Engineering 31 0307001 Architecture 367 0307021 Architecture History 144 0307020 Architecture, Design 103 1103020 Archival Programs 172 0130001 Arctic 42 1008015 Arctic Meteorology 9 0110002 Arctic Ocean 7 1008020 Arctic Sciences 36 0403000 Area & Population Studies/Services 23 0302000 Area Studies (Arts/Humanities) 97 0107202 Argentina 18 0103602 Armenia 45 1003043 Aromatic Compounds 1 0715320 Arrhythmias 6 0303001 Art Administration 111 0305001 Art Criticism 68 0502003 Art Education 256 0303013 Art Fundraising Campaigns 6 0303014 Art Planning/Policy 38 0319001 Art Works/Artifacts 244 0715225 Arteriosclerosis/Atherosclerosis 29 0715010 Arthritis 113 1004015 Artificial Intelligence/Cybernetics 39 1015175 Artificial Radiation Belts 0 1015170 Artificial Satellites 13 0303020 Arts in Education 178 0303000 Arts, General/Other 1521 0300000 ARTS/HUMANITIES/CULTURAL ACTIVITIES 1706 0725038 Asbestos 5 0103000 Asia 167 0312020 Asian Languages/Literature 46 0318040 Asian Religions 14 0403045 Asian-Americans 15 0403054 Asian/Pacific Islanders 50 0417011 Assimilation 0 0735021 Assistive Technology (Disabled) 66 0715013 Asthma 106 1015180 Astrodynamics 6 1015185 Astronaut Maneuvering Equipment 2 1015002 Astronautics 57 1015190 Astronomical Satellites 8 1013002 Astronomy 281 1013003 Astrophysics 157 0404070 Asylum 8 0403050 At-Risk Children/Youth 314 0715253 Ataxia 24 0110003 Atlantic Ocean 10 1001002 Atmosphere: Composition & Disturbance 7 1001012 Atmospheres/Planets 18 1015200 Atmospheric Attenuation 0 1001055 Atmospheric Chemistry 35 1001010 Atmospheric Deposition 4 1230020 Atmospheric Ecology 9 1015205 Atmospheric Models 18 1001056 Atmospheric Physics 15 1015210 Atmospheric Radiation 9 1001057 Atmospheric Remote Sensing 21 1001000 Atmospheric Sciences 214 1001058 Atmospheric Structure and Dynamics 13 1013045 Atom Interferometry 4 1003001 Atomic & Molecular Structure 7 1013019 Atomic Physics 41 1013051 Atomic Spectra 0 1016055 Attack-Class Submarines 1 0715132 Attention Deficit Hyperactivity Disorder (ADH 11 0785020 Audiology 66 0901003 Auditing 19 1015215 Auroras 1 0106101 Australasia 6 0106102 Australia 284 0309016 Australian History 68 0104501 Austria 71 0715256 Autism 107 0304006 Autobiography 28 0715015 Autoimmunity 50 1010027 Automata 2 0735005 Automated Clinical Analysis 2 0609001 Automation 22 0417015 Automation and Industrial Workers 0 0609002 Automotive Engineering 79 1205000 Automotive Propulsion Systems 17 1015220 Auxiliary Power Sources 3 1016060 Aviation Technology 64 0104101 Azerbaijan 36 0104302 Azores 0 1015225 Background Noise 0 1015230 Background Radiation 0 1002003 Bacteriology 58 0105100 Bahamas 6 0103502 Bahrain 24 0203001 Bakery Products 1 0705073 Balance 51 0312022 Baltic Languages/Literature 5 0110004 Baltic Sea 2 0104102 Baltic States 16 0103503 Bangladesh 37 0901005 Banking 53 0801003 Banking Law 4 0901006 Bankruptcy 2 0108002 Barbados 10 1015235 Barrier Layers 5 0502004 Basic Skills Education 43 1255003 Batteries 32 1015240 Beams (Radiation) 17 0110019 Beaufort Sea 0 0710011 Behavior and Health 466 0406015 Behavior Modification 91 1215015 Behavioral Biology 142 0715020 Behavioral Medicine 210 0502060 Behavioral Science Education 35 0745001 Behavioral Therapy 81 0414015 Behavioral/Experimental Psychology 49 0400000 BEHAVIORAL/SOCIAL SCIENCES 716 0404000 Behavioral/Social Studies/Services/Other 305 0104103 Belarus 35 0104401 Belgium 38 0107301 Belize 7 1015245 Beneficiation 0 0101502 Benin 10 0110005 Bering Sea 3 0105200 Bermuda 9 0103504 Bhutan 10 0318041 Biblical Studies 30 1103021 Bibliographic Projects 34 0503004 Bilingual/Bicultural Education 22 0755010 Bioassay 67 0710013 Biochemical Engineering 20 0760002 Biochemical Markers 131 1003002 Biochemistry 423 1003015 Biochemistry, Carbohydrates 3 1003016 Biochemistry, Lipids 37 1003017 Biochemistry, Nucleic Acid 11 1003018 Biochemistry, Proteins 25 1008025 Biocorrosion 1 0785232 Biodefense 25 1002048 Biodegradation 0 1007029 Biodiversity 288 1015250 Biodynamics 2 1002196 Bioeffects 3 0706010 Bioelectric Phenomena 3 0765005 Bioenergetics 24 0710015 Bioengineering 151 0740013 Biofeedback 8 1008030 Biofouling 0 1005049 Biogeochemistry 33 0710139 Bioinformatics 234 1002024 Biological Instrumentation 26 0760003 Biological Markers 294 1215010 Biological Materials 80 1002071 Biological Modeling 6 1008005 Biological Oceanography 19 1002075 Biological Polymers 3 0780005 Biological Resources 93 0740015 Biological Response Modifiers 1 1002000 Biological Sciences 862 1002078 Biological Sensor Mechanisms 26 1104001 Biological/Chemical Warfare 59 1265010 Biomass Fuels 123 0750005 Biomaterials 91 0710020 Biomechanics 46 0706000 Biomedical Engineering 161 0780010 Biomedical Research Resources, Other 229 0720005 Biomedical Research Training 759 0710030 Biomedical Research, Multidisciplinary 2013 1002012 Biometry 7 1002200 Biomimetics 4 1002195 Biomineralization 5 1003066 Biomolecular Science 53 1008035 Biophysical Interactions 11 1013004 Biophysics 120 1009030 Biopolymeric Materials 5 1007038 Bioremediation 5 1002202 Biosciences 95 1002193 Biosphere 20 0710032 Biostatistics 129 0765010 Biosynthesis 5 0710033 Biosystematics 13 0710035 Biotechnology 447 0404031 Bioterrorism 32 1002175 Biotic Systems 10 0715318 Bipolar Disorder 37 0715030 Birth/Congenital Defects 62 0110006 Black Sea 8 1015255 Blackout Physiology 0 1015260 Blackout Propagation 0 0715339 Bladder Cancer 9 0715031 Bleeding Disorders 24 0715227 Blindness 113 1002090 Blood Coagulation 11 0715032 Blood Diseases 147 0750010 Blood/Blood Products/Transfusions 97 0790001 Body Composition 3 0107203 Bolivia 19 0705004 Bone 119 0715270 Bone Diseases 82 0705005 Bone Marrow 57 1015265 Booster Rocket Engines 0 0104303 Bosnia-Hercegovina 30 1002013 Botany 131 0101401 Botswana 30 1015275 Boundary Layer Control 0 1015270 Boundary Layers 5 0705010 Brain 298 0715255 Brain Tumors 52 1015280 Brakes for Arresting Motion 3 0107204 Brazil 58 0715276 Breast Cancer 220 0750015 Breast Milk 6 0606060 Bridge Management Systems 9 0606051 Bridges 23 0150001 British Commonwealth of Nations 16 0309044 British History 84 0104402 British Isles 16 1015285 Broadband 16 0405001 Broadcast Media 290 1007041 Brownfields 17 0103401 Brunei 5 1255005 Buildings, Commercial Energy Use 42 1255010 Buildings, Industrial Energy Use 33 1255015 Buildings, Municipal Energy 32 1255020 Buildings, Residential Energy Use 45 0606087 Built Environment 65 0104304 Bulgaria 37 0312120 Bulgarian Language/Literature 1 0101503 Burkina Faso (Upper Volta) 14 0103402 Burma (Myanmar) 18 1015290 Burning Rate 0 0414036 Burnout 1 0715033 Burns 12 0101201 Burundi 8 0201110 Bush/Bushlands 2 0901095 Business 504 0901007 Business Administration 221 0901008 Business Communications 19 0408020 Business Cycles/Crises 1 0502005 Business Education 93 0901009 Business Ethics 24 0901044 Business Statistics 6 0801004 Business/Corporate Law 21 0901096 Business/Economics Planning/Policy 75 0309002 Byzantine History 20 1015295 Cabin Atmospheres 0 0203004 Cacao Products 0 0715301 Cachexia 2 1010004 Calculus 4 0710096 Caloric Restriction 8 0103404 Cambodia (Kampuchea) 32 0101504 Cameroon 13 0105300 Canada 342 0309060 Canadian History 80 0312051 Canadian Literature 68 0403059 Canadian Studies 160 0101302 Canary Islands 1 0710137 Cancer Biology 344 0715038 Cancer Epidemiology 123 0715046 Cancer Survivorship 78 0715035 Cancer/Carcinogenesis 1108 0203005 Candy 2 0201107 Canine Diseases/Pathology 11 0607066 Capacitors 0 0101505 Cape Verde 6 1003040 Carbohydrates 6 1009035 Carbon Composites 4 1015300 Carbon Compounds 11 1260005 Carbon Dioxide 38 1002081 Carbon Dioxide Fixation 10 1003027 Carbon Dioxide Reduction 51 1007039 Carbon Sequestration 67 1015305 Cardiography 18 0785025 Cardiology 177 0785228 Cardiopulmonary/Chest Medicine 95 0715040 Cardiovascular Diseases 481 0705015 Cardiovascular System 311 0502006 Career Education & Planning 72 0108003 Caribbean Islands 61 0110007 Caribbean Sea 10 0715041 Caries 5 0409001 Cartography 53 0715104 Cat Eye Syndrome 1 1103001 Cataloging & Classification 17 1003019 Catalysis/Kinetics 34 0715326 Cataract 7 1004169 CD-ROM 6 1015310 Celestial Bodies, Celestial Geodesy 2 1013005 Celestial Mechanics 1 1015325 Celestial Navigation 0 1015330 Celestial Reference Systems 0 0760004 Cell Components 35 1002198 Cell Death 14 0780015 Cell Lines 29 1002004 Cellular Biology 560 1002183 Cellular Physiology 33 0309058 Celtic Studies 3 0606052 Cement and Concrete Chemistry 9 0101100 Central Africa 3 0101303 Central African Republic 8 0107300 Central America 45 0103100 Central Asia 28 0104500 Central Europe 40 0604000 Ceramic Engineering 39 0320001 Ceramics (Visual Arts) 67 1009001 Ceramics/Refractories 26 0203006 Cereals 19 0715257 Cerebral Palsy 28 0715042 Cerebrovascular Disorders 80 0715308 Cervical Cancer 57 0101304 Chad 8 0316012 Chamber Music 42 1015335 Change Detection 1 1010030 Chaos 4 1003003 Chemical Dynamics 11 1003004 Chemical Effects 24 0605000 Chemical Engineering 216 1013020 Chemical Physics 32 1003053 Chemical Reactions 23 1003000 Chemical Sciences 832 1003006 Chemical Synthesis 34 1003060 Chemicals and Chemical Properties 30 1230005 Chemicals Monitoring 10 1230010 Chemicals Transport 5 0780017 Chemicals/Materials 58 0745003 Chemoprevention 18 0740018 Chemopreventive Agents 18 0740020 Chemotherapeutic Agents 24 0745005 Chemotherapy 59 1007037 Chesapeake Bay Studies 48 0403046 Chicanos 5 0403051 Child Abuse/Neglect 172 0404004 Child Psychology/Development 114 0403052 Child Support--Governmental/Parental 27 0403003 Child Welfare 158 0730005 Child/Maternal Health 505 0715296 Childhood Disease 155 0770005 Children (Patients) 209 0304010 Children's Literature 187 0403049 Children/Youth 1358 0107205 Chile 24 0103201 China (People's Republic) 164 0110008 China Seas 0 0312024 Chinese Language/Literature 72 0745054 Chinese Medicine 19 0785030 Chiropractic 26 0715288 Cholera 1 0760086 Cholesterol 11 0316013 Choral Music 39 0316010 Choreography 98 0312137 Christian Philosophy 38 1003035 Chromatography 8 0715043 Chronic Fatigue 23 0715166 Chronic Obstructive Pulmonary Disease 27 0313001 Cinema/Video 507 1002176 Circadian Rhythms 16 1015340 Circuit Protection 0 0607028 Circuits and Systems 21 0607067 Circuits Theory/Architecture 8 0705031 Circulatory System 53 0412014 Citizenship 50 0419002 Civic Activities 260 0419008 Civic Protection 12 0412035 Civics/Civics Education 140 0606000 Civil Engineering 123 0801005 Civil Law 40 0412018 Civil Service 18 0412001 Civil/Human Rights 571 1001016 Classification of Climate 7 0503005 Classroom Instruction 18 0715029 Cleft Lip/Palate 7 1001008 Climate Change 598 1001003 Climatology 110 0710040 Clinical Chemistry 22 0706020 Clinical Engineering 6 0785035 Clinical Medicine, General 626 0414004 Clinical Psychology 36 0417013 Clinical Sociology 4 0755015 Clinical Trial 232 1002049 Cloning of Cells 5 1002050 Cloning of Organisms 1 1001018 Cloud Physics 5 1001004 Clouds 6 1220010 Coal Chemistry 2 1260055 Coal Combustion 12 1260010 Coal Processing 7 1260015 Coal Processing/Carbonization 9 1260020 Coal Processing/Desulfurization 0 1260025 Coal Processing/Gasification 9 1260030 Coal Processing/Hydrogenation 1 1260035 Coal Processing/Liquefaction 1 1260040 Coal Processing/Pyrolysis 0 1260045 Coal Processing/Solvent Extraction 0 0606002 Coastal & Ocean Engineering 32 1005006 Coastal Geology 12 1008040 Coastal Meteorology 10 1008001 Coastal Processes 52 0760057 Cocaine 20 0203007 Coffee 2 0414005 Cognitive Development/Processes 242 1015350 Coherent Radiation 0 0760005 Collagen 3 0417027 Collective Behavior 12 0505002 College Students 80 1015355 Collision Avoidance 3 1003009 Colloid Chemistry 6 0107206 Colombia 26 0715037 Colon Cancer 29 0309061 Colonial America 53 0203008 Color Additives 0 0715322 Colorectal Cancer 31 0730092 Combat Medical Care 18 1104019 Combat Rations 0 1003029 Combinatorial Chemistry 2 1010020 Combinatorics 24 1009160 Combustible Materials 0 0609003 Combustion 20 1220015 Combustion Chemistry 8 1015365 Cometary Magnetospheres 0 1015370 Comets 7 1015375 Command Guidance 4 0901010 Commerce 38 0201021 Commodity Futures 3 0104104 Commonwealth of Independent States (CIS) 1 0715045 Communicable Diseases 21 0607002 Communication Systems 78 0405000 Communications 501 0801006 Communications Law 3 1104020 Communications Warfare 18 0715050 Communicative Disorders, Hearing 117 0715055 Communicative Disorders, Speech 85 0501008 Community and School Relations 40 0416018 Community Development/Revitalization 933 0416019 Community Services 1078 0403042 Community Studies 68 0403004 Community/Outreach Programs 929 0101402 Comoros 0 0801044 Company Law 2 0503006 Comparative Education 5 0730073 Comparative Effectiveness Research 60 0412007 Comparative Government 15 0412047 Comparative Politics 42 0318042 Comparative Religion 64 0417002 Comparative Sociology 6 0414062 Comparative/Animal Psychology 5 0507001 Compensatory Education 0 1004037 Compilers 2 0607072 Complex/Intelligent Systems 43 1006001 Complexity Sciences 10 1009007 Composite Materials 36 0414038 Compulsive Behavior 21 1002171 Computational Biology 99 0601013 Computational Fluid Dynamics 14 0609055 Computational Mechanics 20 1004001 Computer Applications 65 1004030 Computer Architecture 34 0307009 Computer Arts 20 0502041 Computer Education/Literacy 53 1004003 Computer Engineering 144 1004004 Computer Graphics 18 1004165 Computer Hardware 52 1004026 Computer Interface 16 1004168 Computer Modeling 45 0315002 Computer Music 13 1004085 Computer Operating Systems 41 1004006 Computer Programming Languages 27 1004000 Computer Science 681 1004043 Computer Simulation/Modeling 82 1004007 Computer Software 173 1004008 Computer Storage & Retrieval 10 1004009 Computer Systems Analysis 24 0901011 Computer Technology 147 1004010 Computer Theory 9 1004072 Computer Vision 10 0607029 Computer-Aided Design 19 0613000 Computer-Aided Engineering 6 0503007 Computer-Aided Instruction 7 1004170 Computer/Data/Network Security 94 0780040 Computing Resources 28 0606004 Concrete Structures 11 1013006 Condensed Matter 61 0404028 Confinement 0 0404026 Conflict/Dispute Resolution 154 0101506 Congo 41 0705020 Connective Tissue 14 1002005 Conservation Biology 191 0412036 Constitution 13 0801007 Constitutional Law 29 0606005 Construction Engineering 76 0801027 Construction Law 6 0606006 Construction Management 46 0404005 Consumer Behavior 47 0502007 Consumer Education/Information 32 0801008 Consumer Law 4 0901012 Consumer Services 29 0609048 Contact Stress Analysis 2 0405004 Content Analysis 0 0505007 Continuing Professional Development 67 0609005 Continuum Mechanics 1 0750020 Contraceptives 71 0801043 Contracts 15 1004012 Control Applications (Computer Sciences) 4 0607004 Control Systems (Electronic) 24 0609006 Control Systems (Mechanical Engineering) 23 1004013 Control Theory (Computer Sciences) 5 1104012 Conventional Warfare 7 0715060 Convulsive Disorders 5 0503041 Cooperative Education 9 1014010 Cooperative Science Programs 6 0901097 Corporate/Nonprofit Philanthropy 70 0901056 Corporate/Strategic Planning 29 1009002 Corrosion 25 1009040 Corrosion Science 20 1003061 Cosmetics 6 1250005 Cosmology 59 0107302 Costa Rica 22 0203009 Cottonseeds 4 0406008 Counseling/Counselling/Ethics 9 0406000 Counseling/Counselling/Guidance 44 0503008 Counseling/Counselling/Guidance Education 20 1008045 Coupled Ocean Acoustics Models 2 0320002 Craft Arts 184 0785041 Craniofacial Health 54 0320015 Creative Arts 135 0304000 Creative Writing 555 0901013 Credit 14 0407002 Crime Causation 37 0407003 Crime Control 138 0407018 Crime Prevention 189 0407004 Criminal Behavior 46 0407010 Criminal Identification 20 0407012 Criminal Information Systems 28 0407005 Criminal Justice 472 0801010 Criminal Law 69 0407016 Criminal Psychology 11 0407014 Criminal Statistics 67 0407000 Criminology 42 0406001 Crisis Counseling 22 0730088 Critical Care 148 0305000 Criticism 28 0104305 Croatia 33 0201023 Crop Insurance 4 0201024 Crop Science 207 0403005 Cross-Cultural Studies 107 1015380 Cryogenics 16 1004014 Cryptography 9 1010060 Cryptology 3 1009003 Crystallography 35 0108004 Cuba 12 0306000 Cultural Activities 313 0403056 Cultural Diversity 285 0409013 Cultural Geography 32 0309045 Cultural History 310 0401003 Cultural Identity 111 0402003 Cultural Resources 160 0401001 Cultural/Social Anthropology 177 0303012 Culture 681 0901014 Currency 3 0503048 Curriculum Development 212 0407017 Cybercrime 20 0706050 Cybernetics 2 0103603 Cyprus 21 0715258 Cystic Fibrosis 62 1002051 Cytogenetics 26 1002015 Cytology 29 1002097 Cytoskeleton 2 0312121 Czech and Slovak Languages/Literature 4 0104502 Czech Republic 52 0203010 Dairy Products 27 0201025 Dairy Science 59 0606007 Dams and Earth Structures 2 0316001 Dance 374 0502008 Dance Education 19 0312025 Danish Language/Literature 6 1015385 Data Acquisition 136 1004016 Data Analysis 272 0755018 Data Management/Analysis 279 1004172 Data Mining 29 1004166 Data Systems 78 1004061 Database Currency Control 0 0404006 Day Care 34 0306001 Deaf Culture 10 0715336 Deafness 67 0404007 Death and Dying, Behavioral/Social 12 0715070 Death and Dying, Health and Physical Needs 25 0715044 Death/Mortality 19 0411015 Decision Sciences 41 0320003 Decorative Arts 57 1104015 Defense Planning/Policy 53 1104018 Defense Technology 162 0715022 Dementia 134 0412037 Democracy 297 0413001 Demography 105 0104202 Denmark 46 0745010 Dental Health & Hygiene 146 0502009 Dental Health Education 106 0785040 Dentistry 276 1004028 Dependable Systems 0 0414042 Dependency 60 0715072 Depression 85 0785045 Dermatology 135 0606011 Desalination 9 1015390 Descent Propulsion Systems 0 1015395 Descent Trajectories 0 0130002 Deserts and Arid Zones 16 0307000 Design Arts 206 0745015 Detoxification 4 0150002 Developing/Underdeveloped Nations 351 1002006 Developmental Biology 155 0715289 Developmental Disabilities 132 0414006 Developmental Psychology 21 0735023 Device Development for People with Disabiliti 29 0412009 Devolution 2 0715075 Diabetes 384 0715080 Diabetic Retinopathy 8 0745025 Dialysis 14 0304009 Diaries 2 0413021 Diaspora 51 1013007 Dielectric Properties 2 0203011 Dietary Foods 23 0740026 Dietary Supplements 30 0715085 Digestive Diseases & Disorders 77 0705025 Digestive System 35 1004088 Digital Computers/Computing 55 0313011 Digital Television 22 1210000 Direct Energy Conversion 6 1015400 Directional Stability 0 0404008 Disasters 187 0503009 Discipline Problems 0 0710000 Disciplines/Fields, Health & Safety/Med/Biome 139 1010021 Discrete Classification 0 1010025 Discrete Mathematics 11 0404063 Discrimination 118 0795003 Disease Control 328 0715000 Disease Entities/Medical Problems, Behavior 76 0755020 Disease Model 60 0745027 Disease Prevention 873 1280026 DISPLAY 6 0503044 Distance Learning 42 1015405 Distance Measuring Equipment 0 1004063 Distributed Systems 7 0101202 Djibouti 6 0760054 DNA 77 1002070 DNA Replication 3 0403006 Domestic Violence 171 0108005 Dominica 6 0108006 Dominican Republic 36 0740080 Dosage Forms 16 0715144 Down Syndrome 6 0201026 Drainage 9 0304001 Drama 126 0316002 Dramatic/Theatre Arts 448 0320004 Drawing 108 1260075 Drilling and Mining 27 0502010 Driver Education 19 0503043 Dropout Prevention 13 0745078 Drug Abuse Prevention 166 0745079 Drug Abuse Treatment 143 0740081 Drug Delivery Systems 78 0755025 Drug Design 212 0502011 Drug Education 20 0710045 Drug Metabolism 32 0765045 Drug Resistance 44 0404009 Drugs/Drug Abuse 307 0312026 Dutch Language/Literature 6 1015410 Dynamic Characteristics 9 1015415 Dynamic Stability 3 0715090 Dyslexia 4 0715274 Dystonia 26 0503046 E-Learning 34 1016062 E-Science 3 0404033 Early Childhood Development 366 0504005 Early Childhood Education 464 0745092 Early Intervention for People With Disabiliti 37 1015420 Earth Atmosphere 49 1015425 Earth Orbital Rendezvous 0 1015430 Earth Orbits 1 0601017 Earth Satellite Applications 12 1005000 Earth Sciences 369 1005014 Earth Sciences Instrumentation 10 1005040 Earth/Terrestrial Remote Sensing 34 0606008 Earthquake Engineering 20 0404058 Earthquake Mitigation 20 0103200 East (Far East) Asia 51 0101200 Eastern Africa 11 0104100 Eastern Europe 63 0120001 Eastern Hemisphere 0 0130000 Ecological Zones 4 1002016 Ecology 422 0413013 Ecology and Population 14 0408002 Econometrics/Forecasting 11 0408041 Economic Competitiveness 58 0901015 Economic Development 639 0409003 Economic Geography 15 1005007 Economic Geology 16 0309003 Economic History 50 0408013 Economic Stabilization 59 0408040 Economic Studies--Developing Countries 72 0408003 Economic Theory 26 0408000 Economics 784 0502061 Economics Education 57 0408018 Economics of Consumption 8 0408036 Economics of Indexing 0 0408014 Economics of Research and Development 13 0408032 Economics of Telecommunications 4 0408015 Economics of the Environment 57 1007027 Ecosystem(s) 469 0715319 Ectodermal Dysplasias 1 0107207 Ecuador 23 0304011 Editorial Projects 55 0500000 EDUCATION 1858 0503011 Education and Work 29 0507007 Education for People With Disabilities 210 0503010 Education, Organizational Theory & Behavior 13 0720000 Education/Instruction (Health/Safety/Medical) 148 0502000 Education/Instructional Programs 178 0501000 Educational Administration and Policy 190 0503012 Educational Evaluation/Assessment 111 0501001 Educational Finance 30 0503035 Educational Improvement 343 0801012 Educational Law 5 0503000 Educational Modes/Psychology/Theory 25 0411011 Educational Planning/Policy 180 0414007 Educational Psychology 9 0503036 Educational Reform 82 0503037 Educational Restructuring 28 0503045 Educational Retention 36 0501035 Educational Studies--Developing Countries 67 0503014 Educational Testing/Measurement 33 0503038 Educational Values 20 0503042 Educational/Instructional Technology 152 0503013 Educational/Public Television 26 0901016 Efficiency Studies 197 0103604 Egypt (United Arab Republic) 70 1015435 Ejection 0 0107303 El Salvador 35 1002067 Elasmobranch 4 1015440 Elastic Waves 0 0609007 Elasticity 1 1009045 Elastomers/Coatings 9 0403008 Elderly 419 0730061 Elderly Health 336 0412016 Electoral Systems 46 1015445 Electric Generators 5 0607005 Electric Power Conversion 15 0607006 Electric Power Generation 43 0607007 Electric Power Transmission 37 1205010 Electric Powered Systems 46 0607000 Electrical Engineering/Electronics 387 1016080 Electro-optical Technology 31 1013047 Electro-optics 30 1003031 Electrochemical Analysis 5 1003021 Electrochemistry 61 1210005 Electrohydrodynamic Generators 3 1250010 Electrohydrodynamics 0 0607040 Electrolytic Cells 0 1015450 Electromagnetic Coupling 0 0607014 Electromagnetic Fields 13 0607008 Electromagnetic Propagation 1 1015460 Electromagnetic Propulsion 1 0607009 Electromagnetics 50 0609008 Electromechanical Systems 17 1013038 Electron Microscopy 33 1016063 Electronic Commerce (E Commerce) 12 1016064 Electronic Data Interchange (EDI) 4 1016070 Electronic Devices 84 1016075 Electronic Materials 41 0405010 Electronic Media 202 0607041 Electronic Neural Networks 10 1004023 Electronic Publishing 16 1016065 Electronic Warfare 25 1009080 Electronic/Optical Materials 19 0609042 Electronics Cooling 3 0710050 Electrophysiology 37 1002085 Electroreception 0 0504001 Elementary Education 62 1013021 Elementary Particle Physics 10 0504000 Elementary/Secondary Education 297 0412046 Elite Studies 0 1004174 Embedded Systems 7 1002017 Embryology 40 0730087 Emergency Health Services 196 1104002 Emergency Preparedness 147 0609009 Emission Control 178 0715095 Emotional/Mental Health 374 0715239 Emotional/Mental Health--Child/Adolescent 146 0715240 Emotional/Mental Health--Geriatric 49 0715238 Emotional/Mental Health--Minorities 32 0715237 Emotional/Mental Health--Women 35 0507002 Emotionally Disturbed Education 0 0901017 Employee Benefits 12 0901048 Employment Opportunity Programs 241 0408016 Employment/Unemployment Studies 77 1007033 Endangered Species 192 0705030 Endocrine System 89 0785050 Endocrinology 144 0715034 Endometriosis 9 0760010 Endorphins 0 1008050 Energetics 8 1200000 ENERGY 586 1009050 Energy Absorbing Materials 3 0765017 Energy Balance 32 1215000 Energy Biological/Biomedical Sciences 22 1220000 Energy Chemical Sciences 54 1210030 Energy Conservation 301 0408004 Energy Economics 42 1280000 Energy Education 33 1225000 Energy Engineering 85 1230000 Energy Environmental Sciences 146 1280005 Energy Faculty Support 0 1235000 Energy Geosciences 54 1280010 Energy Graduate Support 3 1240000 Energy Materials Sciences 32 1245000 Energy Mathematical Sciences 9 1250000 Energy Physical Sciences 13 0411019 Energy Planning/Policy 58 1280015 Energy Postdoctoral Support 1 1280020 Energy Pre-College Support 1 0609060 Energy Release/Transport 16 1255023 Energy Storage Systems 82 1255060 Energy Testing/Analysis 10 1280025 Energy Undergraduate Support 4 1255000 Energy Utilization 120 1230045 Energy/Environmental Studies--Developing Coun 52 0600000 ENGINEERING 1693 0608001 Engineering Administration/Management 19 0609010 Engineering Design 79 0502042 Engineering Education 299 0606009 Engineering Geology 19 0608002 Engineering Innovation Processes 47 0608003 Engineering Management Information Systems 6 0608004 Engineering Personnel Management 1 0411020 Engineering Planning/Policy 9 0608005 Engineering Project Management 9 0414016 Engineering Psychology 0 0608006 Engineering Statistics 2 0609011 Engines 22 0104403 England 23 0502014 English as a Second Language 180 0502013 English Education 87 0312122 English Language/Literature 236 0201103 Enology/Viticulture 7 1002018 Entomology 99 0901050 Entrepreneurship 226 0502047 Entrepreneurship Education 54 0725000 Environment (Health/Safety/Medical) 240 1007001 Environmental Biology 61 1007002 Environmental Chemistry 35 1007015 Environmental Conservation 1320 0609012 Environmental Design 34 0307002 Environmental Design/Technology 45 0502015 Environmental Education 282 1007003 Environmental Effects 134 1260080 Environmental Effects, Fossil Energy 26 1275005 Environmental Effects, Hydropower 10 1009004 Environmental Effects, Materials 9 0606010 Environmental Engineering 80 1007004 Environmental Geography 32 0725005 Environmental Health 351 0801013 Environmental Law 51 1007035 Environmental Management 266 0725036 Environmental Medicine 22 1007016 Environmental Physics 10 0411009 Environmental Planning/Policy 248 0414044 Environmental Psychology/Crowding 1 1007030 Environmental Restoration/Remediation 486 1007042 Environmental Risk Assessment 73 1230030 Environmental Site Use Studies 29 1007000 Environmental Studies 1096 0760013 Enzymes 31 1002089 Enzymes Catalysis 4 0710055 Enzymology 5 1007017 EPA Laboratory Support 2 0785055 Epidemiology 623 1002201 Epigenetics 86 0715244 Epilepsy 128 0501003 Equal Educational Opportunity 25 0412043 Equal Opportunity 50 0201108 Equine Diseases/Pathology 22 1002055 Equine Studies 55 0715307 Erectile Dysfunction 7 0608007 Ergonomics 26 0101305 Eritrea 2 1010031 Error Control 0 0715304 Esophageal Diseases 12 0801028 Estate Law 1 0801041 Estate Planning 0 0104105 Estonia 54 0760026 Estrogen 4 1008002 Estuarine Sciences 36 1265015 Ethane 1 0783011 Ethical, Legal and Social Implications (ELSI) 62 0317002 Ethics 177 1014004 Ethics/Values in Science and Technology 60 0101306 Ethiopia 45 0401008 Ethnic Studies 96 0401007 Ethnography 42 0401009 Ethnohistory 22 0401010 Ethnology 24 0401016 Ethnomusicology 50 1002110 Ethology 5 0755030 Etiology 195 1002113 Eugenics 1 0104600 Eurasia 46 0104000 Europe 80 0307022 European Architecture 25 0150003 European Communities 21 0408022 European Economic Integration 7 0309046 European History 174 0404069 European Integration 16 0312126 European Languages/Literature 66 0150008 European Research Area (ERA) 11 0150004 European Union 54 1002065 Evolution 76 1002056 Evolutionary Biology 93 0745030 Exercise 123 1002116 Exobiology 7 0303015 Expansion Arts 0 1013086 Experimental Physics 29 1004027 Expert Systems 1 1260085 Exploration/Reserves, Energy 13 1220050 Explosions and Explosives 32 1205020 External Combustion Engines 1 1008055 Extra Tropical Storms 4 0760006 Extracellular Matrix 8 1015470 Extraterrestrial Environments 4 1015975 Extraterrestrial Life/Intelligence 3 1015475 Extraterrestrial Radiation 1 0715100 Eye Diseases 101 0609065 Failure Mechanics 1 0715281 Failure to Thrive 0 0107208 Falkland Islands 1 0403007 Family 346 0730010 Family Health/Planning/Safety 244 0503023 Family Literacy 37 0785080 Family Practice Medicine 102 0416020 Family Services 314 0801040 Family/Child Law 17 0406002 Family/Marriage Counseling 9 0201028 Farm and Ranch Management 111 0201027 Farm Machinery 7 0201071 Farming 165 0307003 Fashion/Textiles Design 77 1009005 Fatigue/Fracture 9 1109000 Federal Register Weekly Reference Guide 75 0104306 Federal Republic of Yugoslavia 0 0203012 Feed Grains 8 0201109 Feline Diseases/Pathology 9 1002057 Fermentation 7 0607071 Ferrites 0 0201029 Fertilizers 14 0715259 Fetal Alcohol Syndrome 18 0705035 Fetus 14 0607030 Fiber Optics 11 0715102 Fibromyalgia 10 0304002 Fiction 421 1015490 Field Aligned Currents 0 1015495 Field Theory (Physics) 3 0103202 Fiji 4 1004040 File Organization/Computers 1 0901018 Finance 324 1008060 Fine and Microstructure 2 0303016 Fine Arts 162 1010005 Finite Mathematics 0 0104203 Finland 56 1101000 Fire/Flammability Studies 33 0404062 Firearms/Guns 14 1009161 Fireproofing Materials 5 0408005 Fiscal Theory/Application 11 0201030 Fish and Fisheries 298 0601005 Flight Control 12 1015500 Flight Instruments 9 0601011 Flight Testing 10 1008008 Floods/Flooding 48 0318043 Florentine Religion 1 0609070 Flow Control 4 0609075 Fluid Dynamics 29 1015510 Fluid Flow 13 0609014 Fluid Mechanics 21 1250020 Fluid Physics 14 1250025 Fluid/Electrohydrodynamic Physics 1 1250030 Fluid/Magnetohydrodynamic Physics 2 1250035 Fluid/Superfluidity Physics 3 0745085 Fluoride 4 1015515 Flux Rate/Flux Density 0 1205025 Flywheel Propulsion 0 0730015 Folk Medicine 6 0308001 Folk/Ethnic Arts 200 0308000 Folk/Ethnic Studies 40 0308002 Folklore and Mythology 75 0202001 Food Additives 11 0785011 Food Allergy 17 0202002 Food Analysis 5 0202019 Food and Trade Policy 29 0202003 Food Chemistry 21 0202004 Food Consumption 28 0202005 Food Distribution 74 0202006 Food Drying 1 0202007 Food Engineering 25 0202008 Food Labeling 5 0202009 Food Management 37 0202010 Food Manufacturing 41 0202011 Food Marketing 47 0202024 Food Packaging 35 0202012 Food Practices 21 0202013 Food Preparation 20 0202014 Food Preservation 19 0202015 Food Processing 73 0202025 Food Radiation 0 0202016 Food Safety 242 0202000 Food Sciences 211 0202031 Food Security 175 0404010 Food Stamps 13 0202017 Food Storage 7 0202018 Food Technology 105 0715335 Foodborne Illnesses 39 0765034 Foodborne Pathogens 45 0203000 Foods 101 0502016 Foreign Languages Education 141 0411021 Foreign Policy 108 0801014 Forensic Law 27 1019000 Forensic Science 73 0201067 Forest Ecology 103 0201031 Forest Economics 16 0201070 Forest Engineering 9 0201068 Forest Management 130 0201032 Forestry and Woodlands 339 1004031 Formal Semantics 2 0412026 Formal Theory (Political Science) 10 0104106 Former Soviet Union 23 1260000 Fossil Energy 30 1260140 Fossil Fuels Storage 5 1260090 Fossil Fuels, Coal 25 1260095 Fossil Fuels, Natural Gas 36 1260100 Fossil Fuels, Oil Shales/Tar Sands 9 1260105 Fossil Fuels, Petroleum 60 0404027 Foster Care 31 0715305 Fractures 17 0715291 Fragile X Syndrome 31 0104404 France 120 0901098 Free Enterprise 17 0107209 French Guiana 1 0312030 French Language/Literature 64 0609046 Friction/Wear Lubrication 0 1008065 Fronts and Eddies 0 0202020 Frozen Foods 1 0203013 Fruits 21 0203030 Fruits, Citrus 3 1210010 Fuel Cells 50 1016085 Fuel Consumption, Ships/Aircraft 4 0609080 Fuel Synthesis/Characterization 9 1016090 Fuel Use Management Aids 1 1009085 Functional Materials 10 0715103 Fungal Diseases 17 1270110 Fusion Technology 22 0101507 Gabon 1 0403061 Gaelic Studies 15 0107210 Galapagos Islands 4 1013008 Galaxies, Stellar Systems 15 0101508 Gambia 2 0404071 Gambling 39 1010016 Games Theory 6 0403057 Gangs 27 1015520 Gas Flow 2 0609016 Gas Turbines 7 1265066 Gasification 15 0785060 Gastroenterology 177 0715323 Gastrointestinal Diseases/Disorders 138 1004075 Gateways 0 0103615 Gaza 14 0414054 Gender Differences 76 0730103 Gender Differences (Biological) 45 0417021 Gender Roles 99 0730102 Gender Studies (Biological) 52 0755035 Gene Cloning 4 0765046 Gene Expression 77 0760015 Gene Products 18 0765015 Gene Regulation 21 0745083 Gene Therapy 115 0785081 General Practice 25 1002188 Genetic Engineering 31 0755040 Genetic Manipulation 17 0414048 Genetic Psychology 1 1002019 Genetics 851 0404065 Genocide 28 0765042 Genome/Phenome 16 0765041 Genomics 333 1005002 Geochemistry 77 1005003 Geodesy 17 1005041 Geodynamics 6 1004019 Geographic Information System(s) (GIS) 56 0409002 Geographic Quantitative Methods 2 0409000 Geography 244 0502062 Geography Education 27 1005005 Geology 335 1005038 Geomagnetism 4 1010006 Geometry 31 1005011 Geomorphology 34 1013009 Geophysics 138 0104107 Georgia 46 1005044 Geosciences 220 0606012 Geotechnical Engineering 7 1275010 Geothermal Energy 18 1275015 Geothermal Engineering 9 0710012 Geriatrics 165 0104503 German Democratic Republic (GDR), Former 28 0312028 German Language/Literature 66 0403047 German-Americans 6 0104504 Germany, Federal Republic of 206 0414040 Gestalt Psychology 1 0101509 Ghana 28 0507003 Gifted or Talented Education 16 1005042 Glacial Geology 10 1005012 Glaciology 10 1240005 Glasses 3 0715101 Glaucoma 20 1007018 Global Change 60 0730101 Global Health 155 0614000 Global Positioning System (GPS) 18 0404066 Globalization 83 0202023 GM Crops 3 0202022 GM Foods 4 0403063 Governance 203 0412038 Government Accountability 95 0412002 Government Regulations 46 0412003 Government Studies 174 0412012 Governmental Functions 71 0201090 Grain Processing/Storage 6 0201033 Grains 37 1014006 Grants Administration/Policy 15 1109050 Grants.gov 7590 1109056 Grants.gov/Adobe 1040 1109055 Grants.gov/S2S 5891 0203024 Grapes 5 0307004 Graphic Design 85 1013010 Gravitation 15 1007031 Great Lakes Studies 40 0104307 Greece 108 1007032 Greenhouse Effects 57 1001060 Greenhouse Gases 189 0105700 Greenland 4 1016061 GRID Technology 9 1015530 Ground Stations 2 1015535 Ground Support Equipment 2 0606057 Groundwater 50 0760020 Growth Factors 6 0105602 Guam 4 0107304 Guatemala 32 1015540 Guidance (Motion) 7 0101510 Guinea 11 0101511 Guinea-Bissau 1 0110009 Gulf of Mexico 18 0107211 Guyana 9 1007034 Habitat 429 0715345 Hair Follicle 3 0108007 Haiti 38 0404011 Halfway Programs 0 0735022 Handicapped Device Development 13 0745081 Handicapped Early Intervention 6 0507004 Handicapped Education 62 0801067 Handicapped Legal Services 6 0404061 Handicapped Public Access Programs 25 0415011 Handicapped Rehabilitation 23 0416015 Handicapped Social/Recreation Services 34 0416016 Handicapped Vocational Services 27 0770010 Handicapped/Disabled (Health/Safety/Medical) 175 1008031 Harmful Algal Blooms 4 1010035 Harmonic Analysis, Wavelets 0 0105603 Hawaii 13 0403055 Hawaiian Natives 25 0606053 Hazardous Waste Disposal/Clean-Up 46 1007012 Hazardous Wastes 58 0715317 Head and Neck Cancer 27 0502017 Health and Safety Education 149 0801058 Health and Safety Law 31 0725010 Health and Safety Standards, Environment 41 0700000 HEALTH AND SAFETY/MEDICAL SCIENCES/BIOMEDICAL 1132 0730000 Health Care 1649 0730020 Health Care Administration 167 0730085 Health Care Cost Containment 83 0408006 Health Care Economics 181 0730086 Health Care Financing 93 0730023 Health Care Reform 93 0720011 Health Communication 177 0730100 Health Disparities 380 0730025 Health Facilities Studies 56 0730047 Health Information Technology 97 0730030 Health Insurance 76 0730035 Health Maintenance Organizations 9 0730040 Health Manpower/Professions 84 0730090 Health of Underserved Populations 441 0730091 Health Physics 13 0783015 Health Planning/Policy 537 0745035 Health Promotion 540 0730045 Health Records 39 0710143 Health Science 216 0730050 Health Services Delivery 768 0785065 Health, Allied Fields 57 0725015 Health, Radiation Effects 28 0735020 Health/Medical Science--Computer Technology 136 0730089 Health/Nutrition Programs--Developing Countri 254 1260110 Health/Safety, Fossil Energy 2 0775005 Hearing 139 0705081 Heart 173 0705084 Heart Failure 56 0609017 Heat Transfer 23 0609018 Heating/Ventilation/Air Conditioning 26 1220020 Heavy Element Chemistry 2 0312029 Hebrew Language/Literature 19 1015545 Helicopters 12 0309065 Hellenic Studies 20 0785070 Hematology/Haematology 164 0120000 Hemispheres 0 0715233 Hemophilia 34 0715282 Hepatitis 50 0785071 Hepatology 63 0201034 Herbicides 5 0715267 Herpes Simplex Virus I 1 1002020 Herpetology 21 0130003 High Altitude Zones 2 1013022 High Energy Physics 44 1008070 High Latitude Processes 0 1008075 High Latitude Sediment Dynamics 0 1004167 High Performance Computing 39 1013011 High Pressure Sciences 8 0504002 High School Education 78 1220025 High Temperature Chemistry 7 1009055 High Temperature Coatings 4 1002083 High Temperature/Pressure Biology 1 0505000 Higher Education 815 0505003 Higher Education, Private 23 0505004 Higher Education, Public 22 0606064 Highway Construction/Work Zones 24 0606054 Highway Engineering 40 0403009 Hispanics 89 1002021 Histology 31 0319004 Historic Preservation/Restoration 403 0309047 Historical Documents 226 0309000 History 967 0309004 History & Appreciation of Art 420 0309005 History & Appreciation of Music 81 0502063 History Education 39 0309006 History of Law 26 0309013 History of Medicine 95 0309020 History of Nursing 9 0309007 History of Philosophy 15 0309008 History of Science & Technology 152 0503015 History/Philosophy of Education 14 0715278 HIV Infection 747 0730093 Holistic Medicine 23 0401015 Holocaust 42 1013054 Holography 4 1101500 Home Economics 15 0502018 Home Economics Education 7 0730098 Home Health Care Services 32 0404029 Homeland Security 79 0403048 Homeless 121 0416021 Homeless Services 134 0403025 Homosexual Female/Lesbian 150 0403023 Homosexual Male/Gay 158 0107305 Honduras 30 0103203 Hong Kong 54 0745088 Hormone Replacement Therapy 2 0760025 Hormones 50 0201035 Horticulture 178 0730055 Hospices 27 0901051 Hospital Administration 21 0770015 Hospitalized Patient 33 0901019 Hotel & Restaurant Management 57 1102000 Housing 347 0801015 Housing Law 8 0110010 Hudson Bay 0 1007019 Hudson River Studies 7 1016095 Hull Surface Treatment 0 1002053 Human Development 77 1007020 Human Ecology 29 1002066 Human Evolution 15 0608008 Human Factors in Engineering 30 1215018 Human Genome 62 0414017 Human Learning and Memory 40 0715311 Human Papillomavirus 2 1002061 Human Physiology 37 0413011 Human Population Genetics 48 0413002 Human Reproduction/Fertility 122 0901101 Human Resources 108 0783005 Human Subjects Policy 31 0606066 Human Tolerance to Impact 1 0419007 Human Trafficking 45 0414008 Humanistic Psychology 9 0310005 Humanities Fundraising Campaigns 2 0310001 Humanities Planning/Policy 15 0310000 Humanities, General/Other 949 0502019 Humanities/Liberal Arts Education 105 0130004 Humid Zones 0 0104505 Hungary 48 0404064 Hunger 95 0715245 Huntington's Disease 33 1205030 Hybrid Propulsion Systems 8 0760030 Hybridomas 0 0606013 Hydraulic Engineering 9 1275020 Hydro Energy 30 1275025 Hydro Energy, Meteorology 3 1008080 Hydroacoustics 6 1265020 Hydrocarbon Fuels, General 14 1265025 Hydrocarbon Fuels, Preparation 1 1005045 Hydrodynamics 15 1265000 Hydrogen and Synthetic Fuels 22 1265030 Hydrogen Fuels, General 38 1265035 Hydrogen, Biosynthesis Processes 1 1265040 Hydrogen, Electrolysis 0 1265045 Hydrogen, Thermochemical Processes 3 1265050 Hydrogen, Transport 4 1265055 Hydrogen, Water/Gas Processes 2 1005027 Hydrogeology 17 1005013 Hydrology 87 0715271 Hyperactivity 9 0715105 Hyperplasia 1 0715110 Hypersensitivity 3 0715115 Hypertension 75 0745037 Hyperthermia 2 0755056 Hysterectomy 0 0309059 Iberian Studies 8 1008085 Ice-Acoustic Interactions 2 0104204 Iceland 27 0312031 Icelandic Language/Literature 7 1002022 Ichthyology 6 0403010 Illegal Aliens 3 0607031 Image Processing 37 1013042 Imaging Sciences 219 0403011 Immigrants 85 0403065 Immigration 68 0801016 Immigration Law 18 0740023 Immune Enhancers 1 0705040 Immune System 118 0715120 Immune System Disorders 107 0745086 Immunization 29 0710060 Immunochemistry 12 1002099 Immunodiagnostics 19 0710065 Immunogenetics 15 0710070 Immunology 355 0710075 Immunopathology 14 1002177 Immunophysiology 3 0745040 Immunosuppression 11 0745045 Immunotherapy 53 0740082 Implants 48 0715272 Incontinence 30 0103505 India 131 0110011 Indian Ocean 3 0403022 Indigenous Australians 69 0103403 Indonesia 70 0607069 Inducers 0 0502020 Industrial Arts Education 4 0408026 Industrial Cooperation 11 0609019 Industrial Design 28 0608000 Industrial Engineering 142 1255025 Industrial Processes, Energy Use 22 0408024 Industrial Production 31 0414009 Industrial Psychology 14 0608009 Industrial Relations 11 0901068 Industrial Robotics 3 0608010 Industrial Systems Engineering 7 1016210 Industrial Technology 57 1007021 Industrial Waste 15 1255030 Industrial Waste Heat Recovery 5 1255035 Industrial Waste Management 21 0901020 Industry 210 1270097 Inertial Fusion 2 0414032 Infant Psychology 6 0403020 Infants 135 0715125 Infectious Diseases/Agents 619 0705036 Infertility 65 0715026 Inflammation 110 0715230 Inflammatory Bowel Disease 53 0715283 Influenza 32 0503025 Information Literacy 24 1004017 Information Science/Systems 514 1004062 Information Technology 746 1004018 Information Theory 11 0607070 Information/Communication Systems 151 1009060 Infrared Window Materials 0 1013075 Infrared/Optical Astronomy 15 0760035 Inhibitors 7 0715027 Injury 162 0715028 Injury, Immunophysiology 11 0403012 Inner-City 8 0901031 Innovation 550 1003010 Inorganic Chemistry 50 1009065 Inorganic Polymers 3 0801047 Insolvency/Bankruptcy 0 0320016 Installation Art 33 0503016 Instructional Materials and Practices 54 0503017 Instructional Television 12 0316005 Instrumental Music 96 1013012 Instrumentation, Techniques (Physical Science 30 0735000 Instruments/Instrumentation/Devices (Health/M 162 0760021 Insulin 22 0901021 Insurance/Actuarial Science 47 1004049 Integer Programming 0 0607043 Integrated Circuits 10 0309048 Intellectual History 28 0801032 Intellectual Property 57 0303017 Inter-Arts--Interdisciplinary Art Forms 76 0140002 Intercultural Communications 20 1009070 Interfaces 39 0605014 Interfacial Phenomena 2 0412008 Intergovernmental Relations 12 0307005 Interior Design 41 1009075 Intermetallics 0 1205035 Internal Combustion Engines 12 0785085 Internal Medicine 133 1008090 Internal Waves 0 0140001 International Affairs 143 0201036 International Agriculture 29 0801017 International and Comparative Law 71 0140003 International Business 90 0411022 International Crisis Management 17 0408007 International Economics 81 0502043 International Education/Training 182 0901076 International Management 21 0411001 International Planning/Policy 98 0412004 International Relations/Diplomacy 393 0140005 International Rights 19 1104016 International Security 112 0502064 International Studies Education 82 0140000 International Topics 80 0901022 International Trade & Finance 125 0100000 INTERNATIONAL/GEOGRAPHICAL REGIONS 21 0140004 International/Global Development 99 1004053 Internet 134 1015560 Interplanetary Spacecraft 9 1015565 Interplanetary Trajectories 2 1013013 Interstellar Studies 4 0740000 Intervention, Agents for (Health/Safety/Medic 416 0745000 Intervention, Types of (Health/Safety/Medical 433 0715348 Intervertebral disc 0 0901070 Inventory Control Systems 7 1002062 Invertebrate Physiology 18 0901023 Investments and Securities 29 0760036 Ion Channels 24 1015570 Ionospheres 17 1015575 Ionospheric Conductivity 1 1001020 Ionospheric Phenomena 3 1001059 Ionospheric Physics 5 1015580 Ionospheric Propagation 0 0103605 Iran 19 0103606 Iraq 34 0104405 Ireland 125 0315003 Irish Music 21 0412048 Irish Politics 5 1009162 Iron 23 1015585 Irradiation 4 0201037 Irrigation 43 0401011 Islamic Studies 60 0404030 Isolation 6 1005031 Isotope Geochemistry 8 1270010 Isotope Power Supplies 2 1270005 Isotope/Radiation Technology 8 0103607 Israel 135 0309017 Italian History 32 0312032 Italian Language/Literature 38 0104308 Italy 135 0101512 Ivory Coast 18 0108008 Jamaica 18 1016100 Jammers/Decoys 3 0103204 Japan 181 0312034 Japanese Language/Literature 60 0316014 Jazz Music 51 1015590 Jet Aircraft 5 1015595 Jet Engines 2 0320005 Jewelry/Metal Arts 30 0309049 Jewish History 117 0401012 Jewish Studies 170 0103608 Jordan 52 0313002 Journalism 694 0304008 Journals 17 0801018 Judicial/Law Administration 65 0505005 Junior & Community Colleges 11 0504003 Junior High School Education 15 0311000 Jurisprudence 56 0407006 Juvenile Delinquency 118 0407013 Juvenile Justice 131 0801019 Juvenile Law 82 0104108 Kazakhstan 34 0101203 Kenya 39 0785229 Kidney (Renal) Functions 114 0715262 Kidney Disease 168 1004035 Knowledge Acquisition 30 0404068 Knowledge Based Society 14 1004036 Knowledge Management 33 1004039 Knowledge Representation 8 0103205 Korea 51 0312036 Korean Language/Literature 17 0715298 Krabbe Disease 3 0103609 Kuwait 17 0140007 Kyoto Agreement 0 0104109 Kyrgyz Republic (Kyrgyzstan) 35 0408008 Labor Economics 31 0801020 Labor Law 58 0408028 Labor Market/Unemployment 47 0408030 Labor Market/Women and Minorities 40 0901052 Labor Relations 52 1014011 Laboratory Practice/Procedure 145 0775010 Lactation 6 1015600 Laminar Flow 0 0501037 Land Acquisition/Real Estate 15 0201038 Land Management 160 1007006 Land Pollution 34 0411013 Land Use Planning/Policy 157 1015605 Landing 2 1015610 Landing Aids 0 1015615 Landing Simulation 1 0307006 Landscape Architecture/Design 131 0606014 Landslides 7 0410001 Language Acquisition and Development 115 0312000 Language and/or Literature 851 0312013 Language and/or Literature, Biography 64 0312002 Language and/or Literature, Classical Greek 24 0312003 Language and/or Literature, Classical Latin 18 0312001 Language and/or Literature, Classical/Ancient 53 0312004 Language and/or Literature, Comparative Liter 26 0312005 Language and/or Literature, Drama 53 0312050 Language and/or Literature, Esperanto 0 0312006 Language and/or Literature, Fiction 366 0312007 Language and/or Literature, Medieval 8 0312008 Language and/or Literature, Modern 43 0312009 Language and/or Literature, Non-Fiction 253 0312010 Language and/or Literature, Poetry 366 0312011 Language and/or Literature, Renaissance 12 0312014 Language and/or Literature, Romantic 10 0312012 Language and/or Literature, Translation 102 0312015 Language and/or Literature, Victorian 13 0502021 Language Arts Education 22 0312139 Languages 115 0103405 Laos 16 1009090 Large Unit Cell Materials 0 0715143 Larsen Syndrome 0 1015620 Laser Interferometry 7 1013014 Lasers and Masers 77 0107000 Latin America 87 0309050 Latin American History 32 0312127 Latin American Languages/Literature 15 0312136 Latin Palaeography 0 0312125 Latin Paleography 1 0104110 Latvia 29 1015625 Launch Vehicles 7 0800000 LAW 616 0418003 Law and Social Change 108 0801029 Law and Society 146 0801021 Law Enforcement 236 1240010 Layered/Superlattice Materials 0 1009163 Lead 17 0901024 Leadership 290 0417040 Leadership Development 269 0507005 Learning Disabled Education 51 0720010 Learning Disorders 31 0503018 Learning Motivation 17 0103610 Lebanon 38 0502022 Legal Education 90 0801061 Legal Procedure 23 0801035 Legal Profession, The 40 0801037 Legal Reform 61 0801065 Legal Services 94 0801068 Legal Services for People With Disabilities 31 0418005 Legal Systems 73 1260115 Legislation/Regulation, Energy 5 0715268 Leprosy 9 0101403 Lesotho 11 0715234 Leukemia 85 0101513 Liberia 18 1103024 Library Acquisitions 59 1004020 Library Automation 32 1103000 Library Science 506 1103022 Library Technology 108 0103611 Libya 17 0104506 Liechtenstein 1 1002189 Life Sciences 334 1015630 Life Support Systems 11 0505006 Lifelong Learning 34 0607100 Lighting Systems/Design 31 1002025 Limnology 22 1004046 Linear Programming 1 0409004 Linguistic Geography 7 0410000 Linguistics/Philology 269 0760040 Lipoproteins 6 1270173 Liquid Metal Reactor 0 0503019 Literacy 485 0305002 Literary Criticism 48 0312128 Literary History 54 0312129 Literature--Audience Development 82 0312130 Literature--Design/Production 70 0104111 Lithuania 37 0715321 Liver Cancer 13 0715231 Liver Disorders 80 0705080 Liver Functions 36 0201039 Livestock 217 0501036 Loans/Guarantees/Investments 12 1004052 Local Area Networks 4 0412024 Local Government 40 1010007 Logic 11 0901064 Logistics 62 0130005 Low Altitude Zones 0 0715151 Low Back Pain 4 1013015 Low Temperature Sciences 9 0715224 Lowe Syndrome 1 1015635 Lunar Atmosphere 2 1015640 Lunar Environment 2 1015645 Lunar Exploration 7 1015650 Lunar Probes 2 1015003 Lunar Sciences 9 1015655 Lunar Spacecraft 4 0715303 Lung Cancer 79 0715235 Lupus 49 0104406 Luxembourg 9 0715269 Lyme Borreliosis/Lyme Disease 3 0705045 Lymphatic System 34 0760042 Lymphocytes 5 0715316 Lymphoma 63 0104309 Macedonia 30 0609020 Machine Design 12 1004021 Machine Translation 5 0408009 Macroeconomics 31 0715327 Macular Degeneration 18 0101404 Madagascar 9 1245005 Magnetic Fusion Computation 3 1009095 Magnetic Materials 16 0706036 Magnetic Resonance Imaging (MRI) 73 1013016 Magnetics 44 1013087 Magnetics Laboratory Facilities 0 1210015 Magnetohydrodynamic Generators 1 0609021 Magnetohydrodynamics 5 1013053 Magnetospheric Phenomena 6 0715337 Malaria 87 0101405 Malawi 19 0103406 Malaysia 40 0103506 Maldives 7 0705037 Male Infertility 10 0101514 Mali 17 0715302 Malnutrition 35 0104310 Malta 9 1002026 Mammalogy 36 0730036 Managed Care 18 0901025 Management Information Systems 61 0901026 Management Sciences 203 0900000 MANAGEMENT/COMMERCE 101 0901035 Management/Commerce Planning/Policy 53 0901078 Management/Not-for-Profit Organizations 272 1015670 Maneuverable Spacecraft 4 1015665 Manned Spaceflight 8 1104004 Manpower Selection & Training 41 0901027 Manpower Studies 4 0609022 Manufacturing (Mechanical Engineering) 74 0609095 Manufacturing Engineering 183 0608011 Manufacturing Processes (Industrial Engineeri 144 0319002 Manuscripts/Books/Music Scores 375 0730075 Maori Health 40 0105604 Mariana Islands 2 1008105 Marine Aggregate Dynamics 0 1008000 Marine and Ocean Sciences 304 1008095 Marine Atmospheric Boundary Layers 2 1008100 Marine Atmospheric Chemistry 2 1008110 Marine Biodeterioration 8 1002178 Marine Biology 172 0609023 Marine Engineering 48 1008230 Marine Environment 229 1005008 Marine Geology 29 1008115 Marine Meteorology 14 1008231 Marine Sciences Planning/Policy 45 1008120 Marine Structures 12 1008232 Marine Technology 33 1002190 Marine Zoology 74 1008233 Maritime History 25 1008234 Maritime Industry 33 0801022 Maritime Law 6 0901028 Marketing 279 0201040 Marketing Agreements (Agriculture) 43 0901029 Marketing Research 34 1260120 Marketing/Economics, Energy 12 1015675 Mars Probes 4 0606062 Masonry Engineering 1 0405006 Mass Communication/Media 224 1003025 Mass Spectrometry 34 0605006 Mass Transfer 1 0609040 Mass Transfer Absorption 0 0401013 Material Culture 26 1220030 Materials Chemistry 40 0606015 Materials Engineering 91 0609050 Materials Joining 2 0610001 Materials Processing Engineering 17 0606017 Materials Recovery 1 1009000 Materials Sciences 492 0606019 Materials Testing 11 0606016 Materials, Engineering Properties 15 1240025 Materials, Physical Properties 16 1240030 Materials, Preparation/Fabrication 10 1240035 Materials, Radiation Effects 2 1240045 Materials, Structure and Phase 14 0750000 Materials/Products (Health/Safety/Medical) 18 1010008 Mathematical Foundations 12 0755065 Mathematical Modeling (Medical) 67 1013078 Mathematical Physics 51 1010000 Mathematics 1122 0502023 Mathematics Education 217 1010042 Matrix Theory 6 1015680 Matter-Antimatter Propulsion 0 0101307 Mauritania 9 0101406 Mauritius 15 1010062 Measurement 56 0203014 Meat and Meat Products 61 0202021 Meat Inspection 10 0609000 Mechanical Engineering 217 1009010 Mechanical Properties, Materials 6 0609024 Mechanical Systems 15 0609025 Mechanics 27 0705082 Mechanism of Action (Medical) 89 1009110 Mechanisms/Flow and Fracture 3 0313000 Media Arts 428 0502066 Media Education 56 0405011 Media Management 46 0745082 Medical Counseling 32 0730071 Medical Decision-Making 76 0740083 Medical Devices 170 0609026 Medical Devices Engineering 113 0745020 Medical Diagnosis 352 0502024 Medical Education 847 0730067 Medical Errors 9 0783010 Medical Ethics 120 0705668 Medical Gases 3 0785075 Medical Genetics 100 0409017 Medical Geography 16 0710138 Medical Informatics 128 0735015 Medical Instrumentation 105 0801038 Medical Law 19 0730069 Medical Outcomes 215 1270015 Medical Physics 37 1270020 Medical Physics, Dosimetry 6 1270030 Medical Physics, Radiation Calibration 2 1270025 Medical Physics, Radiation Standards 2 0417025 Medical Sociology 38 0745084 Medical Treatment 492 0706030 Medical/Diagnostic Imaging 360 0710080 Medicinal Chemistry 49 0309009 Medieval History 61 0309040 Medieval Studies 69 0745058 Meditation 6 0104311 Mediterranean 19 0110013 Mediterranean Sea 3 0106103 Melanesia 1 0715036 Melanoma 33 0710083 Membrane Electrochemistry 1 0790005 Membrane Structure/Function 9 1002079 Membrane Transport 4 0760044 Membranes 22 0730094 Men's Health 61 0715300 Meniere's Disease 4 0715297 Meningitis 5 0715126 Menopause 13 0715129 Mental Disorders/Illness 318 0730096 Mental Health Services 334 0715130 Mental Retardation 43 0715341 Mesothelioma 15 1002007 Metabolic Biology 81 0715135 Metabolic Diseases 97 0765020 Metabolism 148 0765022 Metabolism, Amino Acid 1 0765025 Metabolism, Lipid 18 0765030 Metabolism, Mineral 11 0765031 Metabolism, Nucleotide 1 0765032 Metabolism, Protein 12 1016105 Metal Ion Sensors 1 0606085 Metallurgical Engineering 41 1009011 Metallurgy 78 1009012 Metallurgy, Extractive and Process 29 1240015 Metals/Alloys 74 0785141 Metastasis 12 1001005 Meteorology 124 1265060 Methane 12 1265065 Methanol 2 0755000 Methodologies/Procedures (Health/Safety/Medic 58 0755066 Methods of Drug Delivery 51 0502025 Metric Education 0 0607018 Metrology 27 0105400 Mexico 78 1002103 Microbial Degradation 5 1002091 Microbial Processes 54 1002027 Microbiology 335 0408010 Microeconomics 18 0607010 Microelectronics 53 1015973 Microgravity/Reduced Gravity Experiments 12 0103206 Micronesia 9 1002095 Micronutrients 15 1004033 Microprocessors 3 1013039 Microscopy 62 1016110 Microwave Circuit Technology 14 0607011 Microwave Theory 8 0504004 Middle School Education 31 0103600 Middle/Near East 123 0785090 Midwifery 71 0715001 Migraine 24 0201041 Migrant Labor 18 0416022 Migrant Services 10 0413003 Migration 66 0201042 Migratory Animals and Birds 96 1015690 Military Aircraft 29 0309063 Military History 75 0801023 Military Law 1 1104003 Military Logistics 26 1104000 Military Sciences 106 1016212 Military Ships 23 1104021 Military Tactics/Combat 45 1104022 Military Textiles 4 1104023 Military Vehicles Technology 34 0607032 Millimeter Waves 3 0785233 Mind-Body Health/Medicine 41 1005035 Mineral Crystallography 15 1005015 Mineral Resources 73 1005016 Mineralogy 165 1011000 Mining 144 0610000 Mining Engineering 45 0801024 Mining Law 12 0403013 Minorities and Disadvantaged 340 0508000 Minority Education 428 0730097 Minority Health Services 133 0416017 Minority Social/Economic Services 38 0901030 Minority/Women-Owned Business 50 1016115 Missile Trajectories 6 1002014 Mitochondria 12 0715293 Mitochondrial Disorder 15 1008125 Mixed Layer Processes 0 0320017 Mixed-Media Art 55 1016008 Mobile Applications 16 1016009 Mobile Networks 10 1016120 Mobility Fuels Technology 0 0303018 Modern Art 33 0309010 Modern History 52 0309066 Modernity 1 0104112 Moldova 29 1002008 Molecular Biology 648 1003062 Molecular Chemistry 56 0755041 Molecular Cloning 1 0785066 Molecular Epidemiology 21 1002058 Molecular Genetics 124 1002098 Molecular Marine Biology 7 1250040 Molecular Physics 39 0755042 Molecular Probes 53 1002101 Molecular Recognition 4 0760000 Molecular/Cellular Entities 166 0104312 Monaco 2 0103207 Mongolia 24 0760045 Monoclonal Antibodies 5 0607080 Monolithic Circuits 1 0715131 Mood Disorders 27 1015695 Moon-Earth Trajectories 0 1008130 Mooring 0 0101308 Morocco 36 1002059 Morphogenesis 6 1002118 Morphology 46 1015700 Motion Stability 0 0715141 Motor Neurone Disease 45 0101407 Mozambique 34 1009115 Multi-layer Composites 0 0901082 Multi-National Corporations 0 0503039 Multicultural Education 23 0403064 Multicultural Society 58 1016007 Multimedia/Interactive Communications Technol 140 0715246 Multiple Sclerosis 80 1015705 Multistage Rocket Vehicles 1 1255040 Municipal Energy Conservation 8 1255045 Municipal Energy Waste Management 5 0412022 Municipal Government 9 1255050 Municipal Public Utilities 8 0715136 Muscle Disorders 81 1002087 Muscle Structure/Function 35 0715242 Muscular Dystrophy 43 0705050 Musculoskeletal System 158 0314010 Museum Fundraising Campaigns 4 0314000 Museums 276 0315000 Music 729 0316003 Music Composition 187 0316004 Music Conducting 25 0305003 Music Criticism 8 0502026 Music Education 124 0415015 Music Therapy 13 0316017 Musical Recording/Distribution 67 0315001 Musicology/Music Theory 98 1002028 Mutagenics 13 0715254 Myasthenia Gravis 9 1002029 Mycology 32 0715332 Myeloma 47 0715314 Myositis 9 0101408 Namibia 27 0610002 Nano-Materials 139 0607003 Nanotechnology 304 0304013 Narrative 10 0411002 National Planning/Policy 19 1104017 National Security 134 0412010 Nationalism 7 0403014 Native Americans 266 1260060 Natural Gas Combustion 6 1018001 Natural History 60 0765047 Natural History of a Disease 40 1004069 Natural Language Programming 3 0765000 Natural Processes (Health/Safety/Medical) 2 0750025 Natural Products 46 1007022 Natural Resources 454 0801051 Natural Resources Law 13 1007023 Natural Resources Management 324 1018000 Natural Sciences 376 1015710 Navigation 26 0607012 Navigation & Guidance Systems 24 0412045 Nazism 1 1001030 Near Earth Space Particles/Fields 5 1008135 Nearshore Processes 2 1002060 Nematology 1 0715137 Neonatal Disorders 40 0785132 Neonatology 45 0103507 Nepal 34 0785095 Nephrology 107 0705055 Nervous System 159 0104205 Netherlands 50 1004055 Networking 64 0745047 Neural Stimulation 22 0785100 Neuroanatomy 24 1002179 Neurobiology 208 1003063 Neurochemistry 25 0715139 Neurodegenerative Diseases/Disorders 126 0785105 Neuroendocrinology 26 0715343 Neurofibromatosis 11 0706031 Neuroimaging 93 0785106 Neuroimmunology 25 0715138 Neurological Disorders 241 0785110 Neurology 336 0715140 Neuromuscular Disorders 72 0785166 Neuropathology 34 0785115 Neuropharmacology 19 0710085 Neurophysiology 60 0785186 Neuropsychiatry 38 0785116 Neuropsychology 68 0710101 Neuropsychopharmacology 29 1002030 Neuroscience 530 0785120 Neurosurgery 98 0795014 Neurotology 9 0785111 Neurotoxicology 17 0760050 Neurotransmitters 19 1013080 Neutron Scattering 12 0316015 New Music 42 0902001 New Product Development 150 0106104 New Zealand 168 0104113 Newly Independent States (NIS) 2 0107306 Nicaragua 32 0760056 Nicotine 48 0101515 Niger 9 0101516 Nigeria 28 1002084 Nitrogen Fixation 5 1015720 Noise 32 1007007 Noise Pollution 13 1015725 Noise Prediction (Aircraft) 4 1015730 Noise Reduction 9 0203003 Non-alcoholic Beverages 4 0150005 Non-Aligned/Third World Nations 3 0715003 Non-Communicable Diseases 20 0801066 Non-Criminal Law 2 0606020 Non-Destructive Evaluation (NDE) 0 0304003 Non-Fiction 287 1013060 Non-neural Plasma 1 0407007 Non-Violent/White-Collar Crime 5 0303019 Non-Western Art 7 0309051 Non-Western History 24 1013057 Nonlinear Dynamics 23 0414050 Nonverbal Communication 1 0105000 North America 47 0309052 North American History 32 0150006 North Atlantic Treaty Org. (NATO) 6 0110014 North Sea 1 0101300 Northern Africa 11 0103300 Northern Asia 4 0104200 Northern Europe 2 0120002 Northern Hemisphere 0 0403060 Northern Studies 22 0104206 Norway 158 0312038 Norwegian Language/Literature 9 0607044 Novel Device Concepts 46 1002104 Novel Mechanisms/Non-Specific Resistance 1 0304007 Novels 75 1015735 Nuclear Astrophysics 13 1003011 Nuclear Chemistry 10 0609027 Nuclear Engineering 58 1270035 Nuclear Explosions, Detection 7 1012001 Nuclear Fission 10 1270040 Nuclear Fuels, Depleted Uranium 1 1270045 Nuclear Fuels, Enrichment 2 1270050 Nuclear Fuels, Environmental Effects 4 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 5 1270080 Nuclear Fuels, Uranium Reserves 2 1270095 Nuclear Fuels, Waste Disposal 7 1270085 Nuclear Fuels, Waste Management 7 1270090 Nuclear Fuels, Waste Processing 4 1012005 Nuclear Fusion 5 1270100 Nuclear Fusion, Kinetics 1 1270105 Nuclear Fusion, Plasma Research 5 1230035 Nuclear Materials Monitoring 7 0606021 Nuclear Materials Transport 5 0710090 Nuclear Medicine 84 1013023 Nuclear Physics 65 1270115 Nuclear Power, Auxiliary Reactors 1 1270120 Nuclear Power, Breeding Reactors 3 1270125 Nuclear Power, Construction 3 1270130 Nuclear Power, Fuel Cycle 5 1270135 Nuclear Power, Non-Breeding 0 1270140 Nuclear Power, Process Heat Reactors 1 1270145 Nuclear Reactor Technology 22 1270150 Nuclear Reactor, Control Systems 5 1270155 Nuclear Reactor, Environmental Effects 2 1270160 Nuclear Reactor, Experimental 0 1270165 Nuclear Reactor, Fuel Elements 4 1270170 Nuclear Reactor, Fuel Handling 3 1270175 Nuclear Reactor, Plutonium Production 0 1270180 Nuclear Reactor, Propulsion 0 1270185 Nuclear Reactor, Reactor Safety 9 1270190 Nuclear Reactor, Reactor Theory 4 1012004 Nuclear Safety 23 1270000 Nuclear Science and Technology 62 1012000 Nuclear Sciences 71 1104009 Nuclear Strategy 2 0404059 Nuclear Survivability 3 0609028 Nuclear Technology 42 1104005 Nuclear Warfare 28 1270203 Nuclear Weapons, Design 9 1270204 Nuclear Weapons, Safety 20 1270200 Nuclear Weapons, Testing 6 0606022 Nuclear/Radioactive Waste Disposal 17 1012003 Nuclear/Radioactive Wastes 20 0755045 Nucleic Acid Sequencing 40 0790010 Nucleic Acid Structure/Function 40 0760053 Nucleic Acids 53 1010009 Number Theory 26 1010010 Numerical Analysis 21 1010017 Numerical Models 6 0321000 Numismatics 14 0785125 Nurse Practitioner 61 0201043 Nursery Stock 9 0785130 Nursing 715 0502027 Nursing Education 288 0730060 Nursing Homes 12 0502028 Nutrition Education 119 0710095 Nutrition/Dietetics 610 1002184 Nutritional Physiology 25 0203015 Nuts 3 0715145 Obesity 252 0785135 Obstetrics/Gynecology 191 0725020 Occupational Health and Safety 190 0725035 Occupational Hygiene 19 0725039 Occupational Medicine 56 1008140 Ocean Acoustics 10 1275030 Ocean and Ocean Energy Systems 15 1008145 Ocean Chemistry 23 1011001 Ocean Mining 9 1008235 Ocean Modeling 6 1008150 Ocean Optics 8 0606076 Ocean Resources Extraction 6 1016125 Ocean Surveillance 15 0106000 Oceania (Including Australia) 4 1008003 Oceanographic Facilities 7 1008004 Oceanography 172 0110000 Oceans and Seas 132 1002107 Odorant Discrimination 4 0901004 Office Automation 0 0606074 Offshore Platforms and Structures 14 1260065 Oil Shales/Tar Sands Combustion 1 0203016 Oils and Fats 34 0203017 Oilseeds 18 0705071 Olfaction/Smell 41 0103508 Oman 28 0785140 Oncology 416 0785131 Oncology Nursing 90 0316007 Opera/Musical Theatre 152 1010011 Operations Research 95 0785145 Ophthalmology 120 0760055 Opiates 20 0607013 Optical Communications 14 1015740 Optical Equipment 26 1013017 Optics 137 1010041 Optimization 31 0607036 Optoelectronics 20 0785150 Optometry 52 0745012 Oral and Maxillofacial Surgery 47 1002199 Oral Biology 24 0715148 Oral Diseases 52 0745011 Oral Health 202 0309011 Oral History 62 0312131 Oral Literature 37 0601015 Orbital Mechanics 1 1015750 Orbital Position Estimation 0 1015760 Orbits 6 0316016 Orchestral Music 67 1104006 Ordnance 7 1003012 Organic Chemistry 96 1009120 Organic Coatings 3 0201069 Organic Farming 31 1235005 Organic Geochemistry 12 0150007 Organization of American States (OAS) 1 0417003 Organizational Theory and Behavior 37 1003030 Organometallic Chemistry 16 1003033 Organometallic Chemistry, Main Group 6 0780025 Organs 71 1002031 Ornithology 102 0785042 Orofacial Health 8 0715149 Orphan/Rare Diseases 76 0785152 Orthodontics 4 0785155 Orthopedics 189 1015765 Oscillations 1 0715331 Osteoarthritis 40 0715243 Osteogenesis Imperfecta 4 0785225 Osteology/Osteopathy 64 0715146 Osteoporosis 77 1100000 OTHER (ANY/ALL DISCIPLINES) 1333 0715338 Otitis Media 16 0785160 Otorhinolaryngology 63 0715299 Otosclerosis 4 0770020 Outpatient 20 0715309 Ovarian Cancer 48 1015770 Oxygen-Hydrocarbon Rocket Engines 0 1001007 Ozone 11 0730076 Pacific Islands Health 20 0105605 Pacific Islands Trust Territory 7 0110015 Pacific Ocean 18 0103208 Pacific Rim 13 1020000 Packaging Sciences 25 0715150 Pain 224 0320006 Painting 163 0103510 Pakistan 38 1002180 Paleobiology 11 1005017 Paleontology 98 0730105 Palliative Care 108 1005026 Palynology 3 0107307 Panama 31 0705011 Pancreas 45 0715340 Pancreatic Cancer 49 0715152 Pancreatitis 16 1009166 Paper/Pulp 32 0106105 Papua New Guinea 6 0107212 Paraguay 14 1004066 Parallel Algorithms 11 1245010 Parallel Computer Architecture 2 1004078 Parallel Programming 5 0715247 Paralysis 17 0414010 Parapsychology 6 1002032 Parasitology 57 0502044 Parent Education 58 0503020 Parent Involvement 61 0710135 Parenteral Drugs 5 0715248 Parkinson's Disease 98 0901033 Parks & Recreation Management 63 1013024 Particle Physics 75 1008155 Particulate Optics 8 1015775 Passenger Aircraft 1 1009125 Passivity and Inhibition 0 0801025 Patents, Copyrights, Trademarks 14 1002181 Pathobiology 17 0765033 Pathogenesis 172 0785165 Pathology 277 0765035 Pathophysiology 147 0730065 Patient Care and Education 468 0730068 Patient Compliance 47 0730064 Patient Safety 91 0770000 Patient/Volunteer Classification 8 1004022 Pattern Recognition 2 0606058 Pavement Management Systems 9 0606023 Pavements 17 1105000 Peace/Disarmament/Amnesty 178 0785170 Pediatrics/Paediatrics 588 0407001 Penology/Correctional Institutions & Procedur 35 0760060 Peptides 21 0902002 Performance Management 18 0316000 Performing Arts 663 0715155 Perinatal Disorders 27 0775036 Perinatal Health 50 0715157 Periodontal Diseases 8 0785175 Periodontics 24 0770011 Person With a Disability (Health/Safety/Medic 212 0901034 Personnel 20 1015780 Perturbation Theory 0 0107213 Peru 44 0201044 Pest Management 181 0201045 Pesticides 90 1003013 Petroleum Chemistry 11 1260070 Petroleum Combustion 2 0611000 Petroleum Engineering 67 1005018 Petroleum Science 73 1005019 Petrology 62 1005046 Petrophysics 4 0795016 Pharmaceutical Aerosols 6 0740025 Pharmaceuticals 286 0710136 Pharmacoeconomics 15 0710141 Pharmacoepidemiology 11 0740085 Pharmacogenetics 56 0740084 Pharmacokinetics 77 0710100 Pharmacology 451 0785182 Pharmacotherapy 212 0710130 Pharmacy 211 0502045 Pharmacy Education 66 1015785 Phase Transformations 1 0103209 Philippines 33 0312133 Philosophical Literature 10 0317000 Philosophy 298 0309019 Philosophy of Friendship/Love 0 0312123 Philosophy of Language 0 1010061 Philosophy of Mathematics 3 1014012 Philosophy of Science 18 0795012 Phlebology 12 0414058 Phobias 0 0410003 Phonology 4 0710103 Photobiology 3 1220055 Photochemistry 8 0607045 Photoelectric Cells 0 0612000 Photogrammetry 17 0313003 Photography 296 1013069 Photon Science & Technology 12 1013068 Photonics 69 1002033 Photosynthesis 6 1240020 Photovoltaic Materials 13 0607033 Photovoltaics 35 0401002 Physical Anthropology 13 1002182 Physical Biology 3 1003014 Physical Chemistry 64 0502029 Physical Education 28 0745087 Physical Fitness 156 1005004 Physical Geography 13 1005009 Physical Geology 11 0775015 Physical Growth/Retardation 2 1270205 Physical Isotope Separation 2 0785180 Physical Medicine and Rehabilitation 68 1008006 Physical Oceanography 26 1013000 Physical Sciences 410 0775037 Physical Senses, Other 5 1003064 Physical-Organic Chemistry 5 0785091 Physician/Patient Relationship 51 1013018 Physics 656 0706040 Physiological Controls and Systems 9 1002034 Physiological Processes 40 0414011 Physiological Psychology 11 0775000 Physiological/Development Process 13 1002194 Physiology 265 0785181 Physiotherapy 55 1007040 Phytoremediation 1 1009130 Piezoelectric/Electrostrictive Mechanisms 0 0201061 Pig Science 26 0705060 Placenta 3 1015795 Planetary Environments 22 1005043 Planetary Geology 19 1015800 Planetary Orbits 4 1013030 Planetary Studies 104 0411000 Planning/Policy Studies 74 1002035 Plant Breeding 60 1002036 Plant Diseases/Pathology 113 1002037 Plant Genetics 66 1215020 Plant Genome 32 1002038 Plant Nutrition 24 1002039 Plant Physiology/Morphology 24 1002040 Plant Sciences 312 1002064 Plant Taxonomy 28 1002041 Plant Virology 17 0201046 Plant/Soil Nutrient Bioavailability 54 0607015 Plasma Electronics 8 1013025 Plasma Physics 54 1002073 Plasmids 0 0785230 Plastic/Reconstructive Surgery 89 0609029 Plasticity 30 0503021 Play 15 0304012 Playwriting/Screenwriting 186 0785227 Podiatry 22 0304004 Poetry 475 0725025 Poison Control 8 0104507 Poland 88 1005047 Polar Sciences 63 0312138 Polish Language/Literature 14 0412005 Political Behavior 35 0408011 Political Economics/Economy 48 0409005 Political Geography 14 0412039 Political History 103 0412028 Political Methodology 16 0412040 Political Participation 86 0412020 Political Parties 19 0412041 Political Philosophy 32 0412042 Political Rights 62 0412000 Political Science 633 0412006 Political Theory 53 0501004 Politics of Education 1 0201047 Pollen and Pollination 11 1225010 Pollution Control 191 1007036 Pollution Prevention 215 1003039 Polymer Chemistry 22 1009013 Polymer Science 70 1009008 Polymeric Materials 29 0106106 Polynesia 2 0413004 Population Biology 34 0413005 Population Control 6 0413009 Population Forecasting 2 0413015 Population Geography 8 0413000 Population Studies 159 0413020 Population Studies--Developing Countries 15 0413007 Population Transfers 0 0104313 Portugal 49 0312040 Portuguese Language/Literature 13 0715073 Post-Partum Depression 1 0203018 Poultry Products 27 0201048 Poultry Science 32 0404013 Poverty and the Poor 528 1275035 Power Conversion Systems 26 1275040 Power Plants, Renewable Energy 32 0309053 Pre-Columbian Studies 6 0506000 Pre-School Education 33 1001006 Precipitation 9 1013081 Precision/Measurement Science 10 0504010 Precollegiate Education--Art 18 0504011 Precollegiate Education--Bilingual 4 0504012 Precollegiate Education--Economics 6 0504013 Precollegiate Education--English 15 0504014 Precollegiate Education--Health 4 0504015 Precollegiate Education--Humanities 7 0504016 Precollegiate Education--Minority 6 0504017 Precollegiate Education--Science/Mathematics 105 0504018 Precollegiate Education--Social Sciences 16 0504019 Precollegiate Education--Special Education 4 0504020 Precollegiate Education--Vocational 6 0775020 Pregnancy 102 0715160 Pregnancy Disorders 37 0775021 Pregnancy Prevention 40 0775025 Prenatal Factors 50 0745007 Prescription Drugs 59 0755050 Preservation of Organs/Tissue 22 0745050 Preventive Dentistry 11 0745055 Preventive Medicine 146 0901036 Price Change 1 0730051 Primary Care 196 1002191 Primatology 29 0405002 Print Media 207 0607047 Printed Circuits 1 0320007 Printmaking 96 0407011 Prison 68 0501005 Private & Parochial Education 14 1010012 Probability 32 0901053 Problem Solving 22 0605001 Process Development Engineering 20 0605016 Process Simulation and Control 2 1260125 Production and Refining 10 0201049 Production Economics and Management (Agricult 45 0608013 Production Engineering 19 0901062 Production/Operations Management 34 1260130 Products/By-products, Energy 3 0715313 Progeria 3 1004041 Program Verification 1 0901084 Project Management 36 1015815 Propellant Combustion 0 1015810 Propellant Properties 1 1015805 Propellants 5 1260135 Properties, Fossil Fuels 2 0801039 Property 12 0609030 Propulsion 47 1015825 Propulsion System Performance 15 0609085 Propulsive Flows 0 0760065 Prostaglandins 0 0715280 Prostate Cancer 72 0740030 Prosthetic Device, Hearing 6 0740035 Prosthetic Device, Heart 8 0740040 Prosthetic Device, Kidney 1 0740045 Prosthetic Device, Limbs 7 0740050 Prosthetic Device, Neural 6 0740055 Prosthetic Device, Pancreas 4 0740060 Prosthetic Device, Speech 3 0740065 Prosthetic Device, Vision 1 0740070 Prosthetic Devices (General) 36 1002093 Protein Synthesis 13 0760070 Proteins and Macromolecules 117 0760071 Proteomics 149 0715328 Psoriasis 19 0785226 Psychiatric Nursing 9 0785185 Psychiatry 259 0414071 Psychoanalysis 22 0414012 Psychobiology 11 0414020 Psychodynamics 3 0410006 Psycholinguistics 10 0414000 Psychology 541 0414034 Psychology of Aging 23 0414046 Psychology of Exceptional Children 1 0414052 Psychology of Reading 1 0414060 Psychology of Women 13 0414024 Psychology/Abused Children 20 0414026 Psychology/Abused Wives 10 0414013 Psychometrics 17 0785187 Psychoneuroimmunology 5 0710105 Psychopathology 27 0715162 Psychosis 10 0745057 Psychosocial Therapy 105 0715241 Psychosomatic Disorders 20 0745060 Psychotherapy 44 0404072 Public Access Programs for People With Disabi 64 0901037 Public Administration 199 0419000 Public Affairs 62 0419003 Public Affairs Planning/Policy 67 0501006 Public Education 140 0901054 Public Finance 30 0801059 Public Finance Law 5 0730070 Public Health 1145 0801030 Public Health Law 27 0411003 Public Planning/Policy 418 0606055 Public Policy Systems Analysis 38 0901039 Public Relations 86 0801057 Public Safety Law 68 0405012 Public Television/Radio Stations Support 42 0801053 Public Utilities Law 2 0405013 Publishing 147 0715165 Pulmonary Diseases 185 0901040 Purchasing/Procurement 8 1220035 Pyrolysis Chemistry 2 1016130 Pyrotechnic Devices 0 0103509 Qatar 20 0608014 Quality Control (Engineering) 10 0730066 Quality of Care 153 0416023 Quality of Life Programs 411 0901041 Quality/Product Control 32 1013063 Quantum Chaos 1 1003020 Quantum Chemistry 7 1004011 Quantum Computing 19 0607077 Quantum Electronics 25 1013040 Quantum Mechanics 13 1013082 Quantum Physics 29 0607083 Quantum Structures 5 1004058 Queuing 1 0404014 Racism/Race Relations 116 0607016 Radar 24 1015835 Radar Approach Control 0 1015840 Radar Attenuation 0 1015845 Radar Detection 10 1015850 Radar Navigation 3 0607049 Radar Systems 12 1015855 Radar Tracking 6 1270210 Radiation & Shielding Physics 14 1002009 Radiation Biology 29 1220040 Radiation Chemistry 7 1215025 Radiation Effects 32 1270215 Radiation Effects on Instrumentation 3 1013043 Radiation Heat Transfer 2 1270220 Radiation Instrumentation 5 1013026 Radiation Physics 30 1270225 Radiation Sources 10 0313004 Radio 188 1015860 Radio Transmission 23 1013076 Radio/Radar Astronomy 35 1240040 Radioactive Materials 16 0401014 Radiocarbon Dating 1 1220060 Radiochemistry 12 1270227 Radioisotopes 6 0785190 Radiology 231 1230040 Radiometric Techniques 2 1215030 Radionuclide Effects 4 1270228 Radiophorus Energy 0 1013031 Radiosources, Infrared, X-ray, Gamma Ray 15 0745062 Radiotherapy 38 1215033 Radon 7 1016135 Ramjet/Scramjet Propulsion Systems 1 1010045 Random Fields 0 0607017 Range and Tracking Systems 7 0201050 Range Management 28 0404015 Rape/Sexual Abuse 127 1015865 Rare Earth Elements 1 0605018 Reaction Engineering 5 0502030 Reading Education 86 0901042 Real Estate 17 1004047 Real-Time Computing 4 0760075 Receptors 61 0760080 Recombinant DNA 12 1015870 Recoverable Spacecraft 3 1106000 Recreation and Leisure Studies 125 1007013 Recycling 118 0110016 Red Sea 1 1103023 Reference Materials 87 0416024 Refugee/Immigrant Services 120 0403015 Refugees 109 0408012 Regional Economics 22 0411004 Regional Planning/Policy 60 0307007 Regional/Urban Design 52 0780030 Registries 8 1002010 Regulatory Biology 1 0415012 Rehabilitation for People With Disabilities 137 0415000 Rehabilitation/Therapy 209 0415001 Rehabilitation/Therapy, Emotional/Social 33 0415002 Rehabilitation/Therapy, Occupation/Vocation 91 0415003 Rehabilitation/Therapy, Physical 91 1013032 Relativity 6 0745063 Relaxation Techniques 0 0608015 Reliability (Engineering) 3 0502046 Religious Education 67 0309057 Religious History 130 0312134 Religious Literature 53 0318000 Religious Studies 431 0507006 Remedial Education 3 1005020 Remote Sensing 101 1016140 Remote Sensing Technology 64 1015875 Remotely Piloted Vehicles 14 0309012 Renaissance History 35 0309041 Renaissance Studies 39 1275000 Renewable Energy Sources 377 1002042 Reproduction 100 0715167 Reproductive Disorders 84 0710110 Reproductive Endocrinology 26 0710115 Reproductive Physiology 33 0412044 Reproductive Rights 46 1103002 Research Libraries 59 0780000 Research Resources (Health/Safety/Medical) 198 0607063 Resistors 0 1003028 Resonance Spectroscopy 9 1275045 Resources/Availability, Renewable Energy 75 0715277 Respiratory Diseases 225 0705065 Respiratory System 180 0319000 Restoration and Preservation 171 0745090 Resuscitation 18 0715228 Retinitis Pigmentosa 8 0901100 Retirement Studies 26 0760090 Retrovirus 9 0715142 Rett Syndrome 14 1015880 Reusable Spacecraft 4 0715260 Reye's Syndrome 0 0715170 Rheumatic Diseases 76 0785195 Rheumatology 111 0715275 Rhinitis 5 0411005 Risk Factors/Analysis 143 1015885 Risk, Astronautics 2 1007028 Rivers/Streams 96 0419006 Road/Highway Safety 125 0607019 Robotics 84 0606024 Rock Mechanics 4 1015974 Rocket Propulsion/Fuels 9 1015890 Rocket Vehicles 7 0104314 Romania 53 0601006 Rotary Wing Aircraft 11 1015900 Rotor Dynamics 0 0403021 Runaway Youth 13 0901099 Rural Development 152 0501007 Rural Education 30 0409015 Rural Geography 4 0730099 Rural Health 121 0411006 Rural Planning/Policy 59 0416025 Rural Services 116 0403043 Rural Studies 51 0104114 Russia 104 0104115 Russian Federation 44 0309054 Russian History 21 0312042 Russian Language/Literature 31 0101101 Rwanda 37 0715175 Safety 318 1225020 Safety Engineering 116 0108009 Saint Lucia 1 0901038 Sales 28 0705076 Salivary Glands 7 0105606 Samoa 4 1010039 Sampling Theory 2 0606025 Sanitary Engineering 35 0606026 Sanitary Engineering, Environmental Impacts 17 0101517 Sao Tome & Principe 0 1015910 Satellite Attitude Control 3 0607055 Satellite Communication 15 1015915 Satellite Control 12 1016145 Satellite Detection/Classification 2 1015920 Satellite Doppler Positioning 3 1015925 Satellite Guidance 8 1015930 Satellite Tracking 7 1015935 Satellite-to-Satellite Tracking 3 0103612 Saudi Arabia 27 0104201 Scandinavia 20 1013067 Scatter/Rough Surfaces 0 1010048 Scattering 6 1002111 Scavenging and Co-Precipitation 0 0715177 Schizophrenia 59 0501009 School Desegregation 1 0404016 School Food Programs 15 0501010 School Organization 12 1000000 SCIENCE & TECHNOLOGY/MATHEMATICS/COMPUTER SCI 1101 1014014 Science and Society 181 0502031 Science Education 483 0312135 Science Literature 95 1014002 Science Planning/Policy 69 1014000 Science, General/Other 934 1014015 Science--Humanistic Emphasis 80 1014013 Science/Engineering Studies--Developing Count 18 1014001 Scientific Instrumentation 111 0715229 Scleroderma 17 0104407 Scotland 66 0755060 Screening of Drugs/Agents 86 0320008 Sculpture 146 0110012 Sea of Japan 0 1008007 Sea Water Properties 3 0203019 Seafood 25 0410015 Second Language Acquisition 28 1008160 Sediment 45 1005028 Sedimentary Geochemistry 11 1005021 Sedimentology 29 0201051 Seed Production 13 1008165 Seismic Acoustics 6 1005022 Seismology 12 0715061 Seizures 33 0416026 Self-Help Projects 7 0410009 Semantics 8 1009015 Semiconductors 61 0101518 Senegal 27 0715180 Senile Dementia 33 0416027 Senior Citizen Service Programs 95 0607058 Sensing Devices and Transducers 104 1002185 Sensory Physiology 10 0705070 Sensory System 56 0605007 Separation Process 1 1220045 Separations Chemistry 5 0715346 Septicemia 8 0104121 Serbia and Montenegro 27 0785200 Serology 3 0503047 Service Learning 20 1010023 Set Theory 2 0307008 Set/Theatre Decoration/Design 45 0715334 Severe Acute Respiratory Syndrome (SARS) 1 0502032 Sex Education 23 0404012 Sexism 25 0414019 Sexual Behavior 111 0404018 Sexual Harassment 51 0414018 Sexuality 89 0715182 Sexually Transmitted Diseases 161 0101409 Seychelles 0 1015938 SH Waves 0 1008170 Shallow Water Bottom Interaction 1 1008175 Shelf Basin Dynamics 3 1016150 Ship/Aircraft Fuels 3 0715287 Sickle Cell Disease 19 0101519 Sierra Leone 12 1010052 Signal Analysis 11 0607074 Signal Processing 41 1002197 Signal Transduction (Sensory/Cellular) 121 0103407 Singapore 50 1275050 Site Geology, Renewable Energy 3 1104026 Situational Awareness 15 0715184 Sjogren's Syndrome 6 0715273 Skeletal Diseases 68 0715292 Skin Cancer 45 0715185 Skin Diseases 117 0312044 Slavic Language/Literature 12 0715187 Sleep Disorders 100 0104116 Slovak Republic/Slovakia 30 0104315 Slovenia 31 0901043 Small Business 194 1009135 Small Structures 0 0404019 Smoking Behavior 116 0725037 Social & Economic Environment 181 0417041 Social Change 324 0418007 Social Control 3 0408045 Social Economy 20 0901104 Social Enterprise 25 0416005 Social Entrepreneurship 38 0409006 Social Geography 19 0309014 Social History 83 0417004 Social Measurement and Indicators 14 1004054 Social Media 53 0417029 Social Movements 49 0417042 Social Organization 26 0414014 Social Psychology 62 0502033 Social Science Education 117 0404057 Social Sciences--Humanistic Emphasis 943 0416000 Social Services 581 0404017 Social Services Delivery 165 0416028 Social Services Planning/Policy 42 0417005 Social Stratification/Mobility 13 0417043 Social Structure 14 0416030 Social Welfare Planning/Policy 80 0416029 Social Welfare Studies--Developing Countries 24 0502065 Social Welfare/Public Affairs Education 25 0416032 Social Work 142 0404056 Social/Behavioral Science Planning/Policy 34 0416013 Social/Recreation Services for People With Di 73 1002043 Sociobiology 9 0408044 Socioeconomics 85 0418000 Sociolegal Studies 22 0410014 Sociolinguistics 25 0417006 Sociological Theory 12 0417000 Sociology 388 0502034 Sociology Education 15 0417019 Sociology of Language 8 0417007 Sociology of Science 7 0417031 Sociology of Sex and Gender 54 0417044 Sociology of the Family 16 1004171 Software Engineering 137 0606027 Soil Mechanics & Foundations 3 0201052 Soil Sciences 187 0201053 Soil Sciences, Conservation 78 0201054 Soil Sciences, Erosion 39 0201055 Soil Sciences, Soil Genesis 2 0606028 Soil/Structure Interaction 5 1275055 Solar 85 1013077 Solar Astronomy 29 0609032 Solar Heating 10 1001035 Solar Phenomena 7 1013027 Solar Physics 39 1013033 Solar Studies 66 1275060 Solar, Biomass Conversion 3 1275065 Solar, Collectors/Concentrators 13 1275070 Solar, Heat Storage 15 1275075 Solar, Photochemical Conversion 5 1275080 Solar, Photovoltaic Conversion 43 1275085 Solar, Photovoltaic Power Systems 48 1275095 Solar, Thermal Power Systems 30 1275090 Solar, Thermoelectric Conversion 12 0609033 Solid Mechanics 3 1015940 Solid Propellant Rocket Engines 2 1003041 Solid State Chemistry 21 0607020 Solid State Electronics 16 1013028 Solid State Physics 14 0606029 Solid Waste Disposal 30 1009140 Solid/Liquid Interfaces 2 1009145 Solid/Solid Interfaces 2 0106107 Solomon Islands 1 0101204 Somalia 3 0607052 Sonar Systems 5 0101410 South Africa 125 0107200 South America 24 0106110 South Pacific 3 0106109 South Sea Islands 0 0103400 Southeast Asia 38 0312132 Southeast Asian Languages/Literature 11 0101400 Southern Africa 16 0103500 Southern Asia 39 0104300 Southern Europe 4 0120003 Southern Hemisphere 2 0104117 Soviet Bloc 3 1270235 Space & Defense Power Systems 16 1015945 Space Mechanics 15 1015000 Space Sciences 423 1015948 Space Stations 10 1016155 Spacecraft Navigation Technology 19 0104316 Spain 92 0312046 Spanish Language/Literature 25 0507000 Special Education 77 0785000 Specialties of Medical and Allied Fields 28 1001040 Spectral Estimation 0 1013034 Spectroscopy 71 0710120 Speech Pathology 53 0502035 Speech/Communication Education 22 0203020 Spices and Flavorings 4 0715294 Spina Bifida 18 0715249 Spinal Cord Diseases 74 0715290 Spinal Cord Injury 105 0715347 Spine 72 0715295 Spongiform Encephalopathies 11 0785205 Sports Medicine 103 0414072 Sports Psychology 24 1108000 Sports/Athletics 267 0103511 Sri Lanka (Ceylon) 27 1013083 Standard Reference Data 2 1010013 Statistics 284 0715183 STD Prevention 42 1009164 Steel 31 0606030 Steel Structures 6 0760001 Stem Cell 158 1002023 Stem Cell Biology 139 0745075 Sterilization 9 0760085 Steroids 7 0715190 Stillbirth 6 1015950 Stimulated Emission Devices 1 1010033 Stochastic Processes 9 0201056 Stockyards 0 0715342 Stomach (Gastric) Cancer 17 1008180 Strait Dynamics 0 1104024 Strategic Defense Initiative (SDI) 3 1005023 Stratigraphy 25 1015955 Stratospheric Warming 5 0715195 Stress 44 1002115 Stress Response, Neuroanatomy 7 0715200 Stroke 175 0606031 Structural Analysis 11 1002170 Structural Biology 66 1003065 Structural Chemistry 4 0606032 Structural Design 11 0606033 Structural Dynamics 12 0606034 Structural Engineering 34 1005010 Structural Geology 16 1009105 Structural Materials 18 0609090 Structural Mechanics 8 1009150 Structural Polymers 1 0319003 Structural/Architectural 10 0606035 Structure Reliability 8 0790000 Structure/Function (Health/Safety/Medical) 14 0601007 Structures & Materials (Aero./Astro. Engineer 13 0503040 Student Enrichment 94 0101600 Sub-Saharan Africa 62 0150000 Subdivisions: Economic/Linguistic/Political 3 1016165 Submarine Detection Technology 3 1008185 Submarine Geomorphology 0 1016170 Submersible Vehicles 6 0404055 Substance Abuse 367 0745080 Substance Abuse Prevention 198 0101309 Sudan 23 0715205 Sudden Infant Death Syndrome 21 0203021 Sugar 8 0404020 Suicide 66 1004025 Supercomputers 15 1013035 Superconductivity 29 1015960 Supersonic Aircraft 2 1003022 Surface Chemistry 16 1008195 Surface Hydrodynamic Processes 2 1260145 Surface Methods, Fossil Energy 0 1013049 Surface Physics 10 1009016 Surface Science 23 1016175 Surface Warfare 12 1008200 Surface Waves 0 1240055 Surfaces and Interfaces 7 0605012 Surfactants 3 1008205 Surfzone Waves, Turbulence 1 0785210 Surgery 505 0107214 Suriname 8 0607021 Surveillance Systems 34 0606056 Surveying and Mapping 68 0404021 Surveys & Survey Research 60 0201104 Sustainable Agriculture 297 0140006 Sustainable Development 459 0101411 Swaziland 20 0104207 Sweden 71 0312048 Swedish Language/Literature 6 0104408 Switzerland 29 1002117 Symbiosis 1 0710140 Symptom Management 76 1013036 Synchrotron Radiation 13 1002123 Synecology 7 1260160 Synfuels 5 0410013 Syntax 4 0103614 Syria 20 0715306 Syringomyelia 4 1002011 Systematic Biology 74 1002186 Systematics 32 0607101 Systems Engineering 54 0607022 Systems Theory 9 0103210 Taiwan 51 0104118 Tajikistan 32 0101205 Tanzania 42 0408034 Tariff Policy 0 0705074 Taste 44 0901045 Taxes and Taxation 36 0715330 Tay-Sachs Disease 1 0203022 Tea 4 0503022 Teacher Attitudes 15 0502036 Teacher Education 292 1016000 Technology 1533 1016002 Technology Assessment 39 0795000 Technology Assessment/Transfer/Outreach (Hlth 208 1016003 Technology Planning/Policy 39 1016004 Technology Transfer 168 1005024 Tectonics 19 1016005 Telecommunications 69 1016006 Telecommunications Policy 3 0405014 Telecommunications--Educational Materials 7 0607059 Telematics 1 0795010 Telemedicine 35 0607023 Telemetry 5 1016185 Telemetry Technology 6 1015963 Telescopes 33 0313010 Television 234 0130006 Temperate Zones 1 0715324 Temporomandibular Joint Disorders 16 0775030 Teratology 2 1230025 Terrestrial Ecology 73 0404022 Terrorism 89 0320009 Textile/Weaving Arts 62 1017000 Textiles 55 0103408 Thailand 43 0715312 Thalassemia 12 0316018 Theater, Mime 40 0305004 Theatre/Film Criticism 63 1013029 Theoretical Physics 76 0415010 Therapeutic Recreation 19 0795005 Therapy Evaluation 160 1003037 Thermal Analysis 13 1215035 Thermal Effects 15 1210020 Thermionic Convertors 1 0607102 Thermionic Sciences 3 1013037 Thermodynamics 17 0609034 Thermodynamics Engineering 6 1210025 Thermoelectric Generators 7 0609035 Thermosciences Engineering 12 1009017 Thin Film, Technology and Applications 9 0785211 Thoracic Surgery 57 0715226 Thrombosis 32 0785231 Thyroid Functions 11 0103211 Tibet 11 1275100 Tidal and Wave Energy 26 0901066 Time and Motion Studies 2 0780020 Tissue Culture 106 0710014 Tissue Engineering 78 0201057 Tobacco 159 0101520 Togo 4 0607103 Tomography 22 1010014 Topology 13 0801045 Torts 1 0715250 Tourette's Syndrome 8 0901103 Tourism 159 1007024 Toxic Substances--Environmental 166 1007009 Toxicology 262 1104025 Tracking/Detection Devices (Defense) 49 0408042 Trade 114 0801049 Trade Regulation Law 28 0606036 Traffic Engineering 24 0901072 Training and Development 529 1002072 Transcription 8 0501011 Transfer Students 0 0403026 Transgender 121 0780041 Transgenic Animals 6 1002130 Transgenics 11 0304005 Translation 114 0755016 Translational Research 386 0710125 Transplantation Immunology 52 0745065 Transplantation of Organs 143 1015965 Transport Aircraft 8 0605008 Transport Phenomena 6 0607087 Transport Simulations 2 1260150 Transport/Handling, Fossil Fuels 6 0419004 Transportation 422 0606037 Transportation Engineering 93 0606040 Transportation Engineering (Environmental Imp 50 0606041 Transportation Engineering (Intermodal Studie 22 0606038 Transportation Engineering Design 80 0606039 Transportation Engineering Economics 25 0606042 Transportation Engineering Planning/Policy 123 0606043 Transportation Surveys 9 1255055 Transportation, Energy Use 39 0715210 Trauma 152 0715213 Trauma, Cell Biology 5 0715251 Traumatic Brain/Head Injury 82 0715197 Traumatic Stress Disorders 48 0801031 Trial Law 5 0609044 Tribology 3 1010015 Trigonometry 0 0108010 Trinidad and Tobago 17 1002187 Tropical Biology 31 1008210 Tropical Cyclone Motion 2 0715284 Tropical Diseases 40 0201106 Tropical Forestry 20 0785215 Tropical Medicine 33 0130007 Tropical Zones 27 0715261 Tuberculosis 131 0715214 Tuberous Sclerosis 14 0715215 Tumor Immunology 18 0715279 Tumors 180 0101310 Tunisia 42 0606044 Tunnels 5 0609036 Turbomachinery 4 0601008 Turbulence 13 1013046 Turbulent Cascade Phenomena 0 0103702 Turkey 75 0403062 Turkish Studies 23 0104119 Turkmenistan 31 0309055 Twentieth Century History 49 0101206 Uganda 58 0104317 Ukraine 77 1003047 Ultrafast Chemistry 0 1009155 Ultrafine Microstructure 1 0607091 Ultramicroelectrodes 1 0607024 Ultrasonic Technology 7 0706035 Ultrasound 84 0790015 Ultrastructure (Health/Safety/Medical) 1 0505010 Undergraduate Education 283 1016190 Undersea Warfare 12 0606072 Undersea Workstations/Vehicles 5 1016195 Underwater Explosive Warheads 1 0801055 Unfair Competition Law 4 0605002 Unit Operations Engineering 0 0103512 United Arab Emirates 20 0104409 United Kingdom (Great Britain & Northern Irel 191 0105600 United States 297 0307010 Universal Design 5 1107000 University/Industrial Partnership 94 1016200 Unmanned Fixed Wing Aircraft 20 1015970 Unmanned Spacecraft 14 0101521 Upper Volta 0 0408043 Urban Economics 15 0501012 Urban Education 13 0409007 Urban Geography 9 0309015 Urban History 10 0411007 Urban Planning/Policy 205 0417023 Urban Sociology 8 0403044 Urban Studies 90 0715333 Urinary Tract Disorders 55 0705075 Urogenital System 68 0785220 Urology 126 0107215 Uruguay 10 0105607 USA, Atlantic Central 0 0105608 USA, Great Lakes 23 0105609 USA, Midwest 5 0105610 USA, New England 19 0105611 USA, Northeast 0 0105612 USA, Northwest 15 0105613 USA, Southeast 25 0105614 USA, Southwest 15 0715310 Uterine Cancer 8 0901046 Utilities 8 0104120 Uzbekistan 36 0740075 Vaccine 168 1225015 Vacuum Engineering 30 1013084 Vacuum Science 31 0608016 Value Engineering 0 0502037 Values/Moral Education 9 0106108 Vanuatu 1 0710142 Vascular Biology 143 0715039 Vascular Disease 138 0203023 Vegetables 24 1205040 Vehicle Design 56 0606068 Vehicle Impact 10 0715220 Venereal Diseases 3 0107216 Venezuela 15 0901080 Venture Capital 9 1005025 Vertebrate Paleontology 14 1002044 Vertebrate Physiology 5 0607035 Very Large Scale Integration (VLSI) 0 1002120 Vestibular Transduction 2 0403016 Veterans 61 0416031 Veterans Services 41 0201058 Veterinary Medicine 284 0201059 Veterinary Toxicology 29 0407008 Victimization/Compensation 44 0103409 Vietnam 39 0404032 Violence Prevention 362 0404023 Violent Behavior 74 0407009 Violent Crime 70 1002045 Viral Studies (Virology) 168 0108011 Virgin Islands 6 1002124 Virtual Reality 29 1008213 Visibility Imaging 1 1002046 Vision 137 0320000 Visual Arts 719 0705072 Visual Perception/Processing 18 1002125 Visualization 33 0730080 Vital Statistics 2 1002076 Vitamins/Metabolic Role 10 0316006 Vocal Music 82 0406003 Vocational Counseling 30 0416014 Vocational Services for People With Disabilit 74 0502038 Vocational/Technical Education 245 1005048 Volcanology 21 0403017 Volunteers 130 0501013 Volunteers (Education) 12 0715285 von Willebrand's Disease 7 0901060 Wage and Salary Administration 2 1016205 Warfare Technologies 71 1007025 Waste Management 161 0201060 Waste Management (Agriculture) 37 0202030 Waste Management Food Processing 11 1260155 Waste Management/Fossil Energy 9 1225025 Waste Processing Plants 5 0606045 Waste Water Treatment 85 1007008 Water Pollution 191 0606059 Water Quality 426 0606046 Water Resources Engineering 94 1007010 Water Resources, Environmental Impacts 243 0606047 Water Resources, Management/Planning 327 0606048 Water Supply 267 0606049 Water Treatment 119 1007014 Watershed 199 0606050 Waterways and Harbors 60 1010055 Wave Equations 1 1008220 Wave/Wake Dynamics 1 1008215 Waves/Currents 6 1016211 Weapons/Weapon Systems 88 1001009 Weather Modification 6 0201062 Weed Sciences 26 0606086 Welding 30 0416034 Welfare Reform 18 0103613 West Bank 29 0108000 West Indies 5 0101500 Western Africa 12 0103700 Western Asia 6 1008225 Western Boundary Currents 0 0309056 Western Civilization 17 0104400 Western Europe 4 0120004 Western Hemisphere 15 1007026 Wetlands 139 0201063 Wildlife 459 1275105 Wind Energy, General 59 0601009 Wind Tunnels 2 1275110 Wind, Climatology 0 1275115 Wind, Turbine Operation 9 1275120 Wind, Wind Energy Engineering 25 0203025 Wine 11 1004173 Wireless Sensor Networks 21 0509000 Women's Education 405 0730095 Women's Health 520 0309064 Women's History 55 0416033 Women's Social/Economic Services 274 0403018 Women's Studies 250 0201064 Wood 34 0201111 Wool 8 1004024 Word/Text Processing 1 0404024 Work Motivation 20 0417017 Worker Attitudes and Technology 21 0765040 Wound Healing 39 0502039 Writing/Composition Education 46 0745061 X-Ray 41 0110017 Yellow Sea 0 0103513 Yemen 29 0312049 Yiddish Language/Literature 4 0417045 Youth Development/Leadership 543 0901102 Youth Employment Opportunity Programs 89 0101102 Zaire 0 0101412 Zambia 37 0101413 Zimbabwe (Rhodesia) 39 1009165 Zinc 1 1002192 Zoological Parks 30 1002047 Zoology 85 0715329 Zoonotic Diseases 15