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(Click for frequent words.) 81 sociologist 79 psychology professor 73 professor 69 Sociology Professor 68 associate professor 68 economics professor 67 anthropology professor 66 professor emeritus 66 criminology professor 65 assistant professor 64 Sociologist 63 doctoral candidate 61 doctoral student 60 criminologist 60 linguistics professor 59 researcher 59 Associate Professor 59 Professor 59 sociology 58 anthropologist 58 demographer 58 emeritus professor 58 professor emerita 58 geographer 57 Ph.D. associate professor 57 lecturer 56 cultural anthropologist 56 Lead researcher 56 psychiatry professor 56 associate dean 56 sociology lecturer 55 cognitive neuroscientist 55 Prof. 54 PhD associate professor 54 Assistant Professor 53 developmental psychologist 53 Ph.D. Associate Professor 53 vice provost 53 gerontologist 52 adjunct professor 52 profes sor 52 paleoanthropologist 52 entomology professor 52 neuroscientist 52 Professor Emeritus 52 associate provost 52 evolutionary psychologist 51 evolutionary anthropologist 51 psychologist 51 coauthor 51 tenured associate professor 51 economist 51 evolutionary biologist 50 distinguished professor emeritus 50 Professors 50 emerita professor 50 Evolutionary psychologist 50 sociologists 50 biostatistician 50 postdoctoral fellow 50 postdoctoral researcher 50 Sociology 49 historian 49 molecular biologist 49 Ruben Rumbaut 49 codirector 49 MD associate professor 49 clinical psychologist 49 botany professor 49 Associate Provost 49 Criminologist 49 anthropology lecturer 49 associate professor emeritus 49 ecologist 49 biomedical ethicist 49 Psychologist Dr 49 adjunct associate professor 49 epidemiologist 49 scholar 49 profesor 49 scientist 48 MD Ph.D. associate professor 48 paleobiologist 48 Clinical psychologist 48 Irvine criminologist 48 doctoral researcher 48 Distinguished Professor Emeritus 48 Anthropologist 48 gerontology 47 Associate Dean 47 economists Betsey Stevenson 47 Ph.D. MPH 47 biologist 47 pro fessor 47 associate professor emerita 47 doctoral 47 behavioral neuroscientist 47 Vice Provost 47 geneticist 47 linguistic anthropologist 47 Ph.D. 47 computational biologist 47 geoscientist 47 biogeochemist 46 Distinguished Professor 46 biophysicist 46 forest ecologist 46 behavioral ecologist 46 JURIST Guest Columnist 46 atmospheric scientist 46 evolutionary ecologist 46 University 46 MD MPH 46 Prof 46 cultural anthropology 46 biological anthropologist 46 evolutionary geneticist 46 PhD MPH 46 anthropology 46 Psychologist 46 Adjunct professor 45 geomorphologist 45 Social Anthropology 45 Researcher 45 professors 45 Lethbridge sociologist 45 marine ecologist 45 Kathryn Edin 45 Maria Kefalas 45 postdoctoral scholar 45 dean 45 Sara McLanahan 45 Political Science 45 Elayne Rapping professor 45 Mahzarin Banaji 45 pollster 45 prof 45 PhD 45 seismologist 45 MD DrPH 45 Demographer 45 palaeoanthropologist 45 PhD MSW 44 Seismologist 44 Dr. 44 psychology 44 MD PhD associate professor 44 EDUCATION BA 44 Gary Hoppenstand professor 44 Ronald Inglehart 44 geophysicist 44 Neuroscientist 44 Camilla Benbow 44 behavioral geneticist 44 pediatric endocrinologist 44 Eileen Crimmins 44 Margarite Fernandez Olmos 44 postdoctoral scientist 44 evolutionary anthropology 44 postdoctoral associate 44 Martie Haselton 44 Visiting Associate Professor 44 entomologist 44 atmospheric sciences professor 44 neurophysiologist 44 MD M.Sc. 44 atmospheric chemist 44 criminology 44 ScD 44 Kroc Institute 44 Clinical Associate Professor 44 USC Dornsife College 44 Conflict Studies 44 M. Twenge 44 molecular geneticist 44 oceanographer 43 developmental psychology 43 ethicist 43 Richard Burkhauser 43 Pranis 43 Charles Kurzman 43 glaciologist 43 Carsey Institute 43 provost 43 plant physiologist 43 bio ethicist 43 MBBS PhD 43 Professor Emerita 43 master thesis 43 Dr.PH 43 Luis Fraga 43 Brad Bushman 43 Susan Swithers 43 L. Rowell Huesmann 43 MD Associate Professor 43 geosciences professor 43 postdoctoral research 43 adjunct lecturer 43 neurobiologist 43 agronomy professor 43 Coauthor 43 Fulbright scholar 43 developmental biologist 43 CDC epidemiologist 43 Asma Barlas 43 Randall Balmer professor 43 Anne Marie Ambert 43 principal investigator 43 Omid Safi professor 43 psychologist Victoria Brescoll 42 T. Denean Sharpley Whiting 42 zoology professor 42 sociology professor emeritus 42 Pluralism Project 42 Philip Oreopoulos 42 GRD '# 42 medical ethicist 42 Explainer thanks 42 conservation biologist 42 Timothy Biblarz 42 Ph.D. RN 42 biological oceanographer 42 Interim Provost 42 doctoral dissertation 42 pharmacologist 42 tenured professor 42 sessional instructor 42 Extension Entomologist 42 Lars Lefgren 42 Esther Rothblum 42 poli sci prof 42 Timothy Smeeding 42 Julian Barling 42 biochemist 42 admissions counselor 42 told environmentalresearchweb 42 Joseph Gyourko 42 Africana studies 42 Paleoanthropologist 42 Erica Frankenberg 42 geochemist 42 Maulana Karenga professor 42 Dolores Albarracin 42 untenured professor 42 atmospheric physicist 42 Neil Nevitte 42 Social Work 42 professors emeriti 42 teaches playwriting 42 vertebrate paleontologist 42 theorist 42 Andre Gerolymatos 42 Sansing professor emeritus 42 Peter Bearman 42 Gary Orfield 42 Pendakur 42 Emeritus Professor 42 Karen Fingerman 42 Evolutionary biologist 42 Prof. Emeritus 42 Londa Schiebinger 42 psychiatry 42 AAUP chapter 42 Rebecca Puhl 42 Gender Studies 42 Elaine Pagels professor 41 feminist theorist 41 Visiting Fellow 41 Alejandro Portes 41 MD MPH associate professor 41 Tapia Granados 41 MSPH 41 Daniel Geschwind 41 Danny Dorling professor 41 theoretical astrophysicist 41 Distinguished Visiting Scholar 41 microbial ecologist 41 Sinologist 41 Associate Professor Emeritus 41 Ariela Keysar 41 economists Edward Glaeser 41 Gerontology 41 PNS contributor 41 Joel Mokyr 41 geological sciences 41 sexologist 41 Extension entomologist 41 planetary scientist 41 Raymond Fisman 41 author 41 reseacher 41 Census Bureau demographer 41 ethnomusicologist 41 Luigi Zingales 41 Cum Laude graduate 41 epidemiology 41 aquatic ecologist 41 nutritional sciences 41 Lang demographer 41 PhD Associate Professor 41 Wellman sociologist 41 Lt. Col. 41 geriatrician 41 Nancy Olewiler 41 Doctoral Candidate 41 parasitologist 41 Fox criminologist 41 Chicano Latino Studies 41 Ph.D 41 Maume 41 UNC Greensboro UNC Wilmington 41 Boisi Center 41 economist Edward Glaeser 41 Kritchevsky 41 paleoclimatologist 41 bioethicist 41 bioengineer 41 Alumni Distinguished Professor 41 Narcissism Epidemic 41 Sc.D. 40 Distinguished Visiting Professor 40 RICHARD STOCKTON SOFTBALL 40 Profesor 40 Edward O. Laumann 40 Eyal Ophir 40 Contemporary Judaic Studies 40 Ed.D. 40 Fisman 40 teaches 40 biological anthropology 40 ethnomusicology 40 microbiologist 40 Chicana Chicano 40 psychotherapist specializing 40 Christopher Uggen 40 Extension horticulturist 40 paleontologist 40 Suarez Orozco 40 Nancy Shulock 40 Ph.D. postdoctoral fellow 40 Entomologist 40 Jonathan Levav 40 Tiziana Casciaro 40 Gedalof 40 psychologist Gregory Herek 40 Deborah Balk 40 Scripps Gerontology Center 40 Howard Kunreuther 40 economists Alberto Alesina 40 Maj. 40 sociological 40 book Hooking Up 40 Chicano studies 40 Autonomous Technological Institute 40 Postdoctoral fellow 40 expert 40 F. Baumeister 40 Studies 40 en Sciences Sociales 40 Zhou Xiaozheng sociology professor 40 Frank Furedi professor 40 Ahmed El Sohemy 40 Comparative Literature 40 Strayer psychology 40 Lecturer 40 Caryl Rivers 40 MD Dr.PH 40 bioengineering doctoral 40 coeditor 40 wildlife biologist 40 palaeontologist 40 DELAWARE OHIO Ohio 40 Sered 40 linguist 40 Schonert Reichl 40 Sociology Anthropology 40 MD MSCE 40 Ephraim Yaar 40 Swithers 40 Geophysical Sciences 40 professor Mark Tushnet 40 Ph. D. 40 alumus 40 Hiroyasu Iso 40 sociolinguistics 40 Noah Pickus 40 Kate Bronfenbrenner 40 Elizabeth Spelke 40 rector 40 MD PhD 40 studys 39 pediatric infectious diseases 39 Rev. 39 endocrinologist 39 Extension horticulture educator 39 Cardiologist Dr. 39 limnologist 39 Institutional Diversity 39 Ara Norenzayan 39 undergraduate admissions 39 Hemispheric Policy 39 Christopher Jencks 39 Charles Moskos sociologist 39 physicist 39 Epidemiologist 39 Chicano Latino studies 39 Demography 39 Karl Pillemer professor 39 Charles Perrow 39 neuropsychologist 39 Sandra Hofferth 39 Developmental Psychology 39 Nancy Orel 39 macroeconomist 39 Jules Boykoff 39 neuro psychologist 39 marine biologist 39 George Borjas 39 ethnobotanist 39 Andrew Metrick 39 Terrie Moffitt 39 sociology anthropology 39 LiveScience 39 Larry Shinagawa 39 Ling chi 39 Mesopotamian archeology 39 Professor Jean Twenge 39 musicologist 39 Jason Rentfrow 39 Visiting Professor 39 Hougardy 39 MD tells WebMD 39 Brookings Institution 39 oceanography professor 39 teaches criminology 39 analyst 39 tells Nanowerk 39 PhD tells WebMD 39 Anthropology 39 PhD postdoctoral fellow 39 Till von Wachter 39 Hu DeHart 39 Glenn Gaesser 39 Svara professor 39 Sheldon Danziger 39 Enrico Moretti 39 aka Miss Manners 39 Scott Schieman 39 Brookings Institution scholar 39 Microbiologist 39 accompanying editorial 39 neuropsychology 39 librarian 39 Army ROTC cadet 39 Ana Diez Roux 39 PsyD 39 Cooperative Extension Educator 39 Andrus Gerontology Center 39 Armand Mauss professor emeritus 39 neuro oncologist 39 Psychology 39 coauthors 39 Vladas Griskevicius 39 Nevitte 39 reproductive biologist 39 adjunct faculty member 39 ethnographer 39 Sonja Lyubomirsky 39 Connie Diekman director 39 Visiting Scholar 39 Katie Liljenquist 39 Gershoff 39 El Colegio de 39 Brookings Institution demographer 39 Daniel Boyarin 38 Xavier Gabaix 38 Univerity 38 Ukrainian Barometer 38 sociologist Edward Laumann 38 Public Policy 38 CU Boulder doctoral 38 comparative literature 38 Psy.D. 38 Vijay Prashad 38 USC Rossier School 38 Neurobiologist 38 Christopher Haiman 38 Nicholas Christakis 38 vice chancellor 38 Jennifer Aaker 38 Oblate Father 38 astrophysicist 38 Pediatrician Dr. 38 Roger Waldinger 38 professorial lecturer 38 J. Skorton 38 Leaf Van Boven 38 Benedikt Fischer 38 Africana Studies 38 climatologist 38 Cultural Anthropology 38 MD Ph.D. 38 Traumatology Institute 38 immunologist 38 Ph. D 38 Toni Yancey 38 zoologist 38 Graduate School 38 Nancy Foner 38 Patricia Gandara 38 Uwe Reinhardt professor 38 Sociologists 38 bachelor degree cum laude 38 Paul Sereno paleontologist 38 Interdisciplinary Obesity Center 38 linguist Geoffrey Nunberg 38 MD DSc 38 Dan Ariely professor 38 Shang Jin Wei 38 HHMI investigator 38 Kenneth Lieberthal scholar 38 inorganic chemist 38 Visiting Lecturer 38 Dacher Keltner 38 Endocrinologist 38 Jane Waldfogel 38 Hollander associate professor 38 Tim Smeeding 38 USGS scientist 38 Neurologist 38 starters 2/cf 38 holds doctorate 38 Jonathan Haidt 38 Tali Sharot 38 developmental pediatrician 38 Roderic Ai Camp 38 Assyriology 38 Sonja Lyubomirsky psychology 38 Ph.D. RD 38 Jack Levin criminologist 38 Seoul Kookmin 38 Professor Leonard Cavise 38 Antonio Zadra 38 planetary geologist 38 Brigitte Madrian 38 starters 6/ss 38 physiologist 38 Extension Educator 38 Psychoanalyst 38 Becker Blease 38 Mary Helen Immordino 38 Paletz 38 geriatric psychiatrist 38 Anthony Doob 38 Moshe Szyf 38 Distinguished Teaching Professor 38 Pitzer College 38 Kenji Hakuta 38 Sexuality Studies 38 Bernard Haykel 38 Stanislas Dehaene 38 Elizabeth Kneebone senior 38 Scott Atran 38 Santa Cruz Lick Observatory 38 Raul Hinojosa Ojeda 38 Jungian analyst 38 Gayatri Spivak 38 Description Commentator 38 #-#-# Jocelyn Thibault 38 Comparative Immigration 38 Shelley Rigger 38 Tomas Philipson 38 astronomer 38 Michael Inzlicht 38 Sameer Hinduja 38 Hamid Dabashi professor 38 Antonio Damasio 38 virologist 38 sociomedical sciences 38 biometeorology 38 tells WebMD 38 awarded Fulbright Scholarship 38 MD MPH FAAP 38 Political Economy 38 exercise physiologist 38 Moss Racusin 38 Michelle Oberman 38 Zachary Abuza 38 Chicana o Studies 38 Pollster 38 ALCO pollsters 38 Berkeley Tad Patzek 38 Karthick Ramakrishnan 38 Segrin 38 Assoc Prof 38 geobiologist 38 biopsychology 38 EdD 38 Taipei National Chengchi 38 FindLaw columnist 38 dean emerita 38 Comprehensive Epilepsy Center 38 Juliano Laran 38 Chicano Chicana 38 Kathleen Staudt 38 methodologist 38 Transdisciplinary Tobacco Use 38 Fred Magdoff 38 Biologist 38 École des Hautes Études 38 Fawaz Gerges professor 37 Tatian 37 George A. Akerlof 37 Christopher Chabris 37 Lena Edlund 37 Richard Bulliet 37 Jocelyn Guyer 37 MD PhD FRCPC 37 neonatologist 37 Lasley sociologist 37 Nina Mazar 37 Historian 37 psychologist Philip Zimbardo 37 biophysics 37 Elizabeth Saewyc 37 Biblarz 37 Berkeley Geochronology Center 37 Neurologist Dr. 37 psychobiologist 37 researcher Irva Hertz Picciotto 37 Winkleby 37 MD pediatric cardiologist 37 wildlife ecologist 37 reference librarian 37 Criminology 37 BBER 37 neuropsychiatrist 37 linguistics 37 Bissig 37 poli sci professor 37 Shauman 37 http:/profnet.prnewswire.com/ud public.jsp?useridPalisene 37 Bioethicist 37 Universidad Autónoma de 37 Elhai 37 MD D.Phil 37 MD gastroenterologist 37 chief economist 37 Pamela Smock 37 Paul.Campos 37 musicology 37 Deborah Gruenfeld 37 Eating Disorders Program 37 fisheries biologist 37 Radelet 37 literatures 37 Roy Baumeister 37 Adjunct Lecturer 37 Francesca Gino 37 Salaff 37 Athena Kolbe 37 Paolo Spadoni 37 American Sociological 37 demography 37 Kira Birditt 37 pastoral theology 37 Rabbi Shira 37 animal behaviorist 37 Tom Angotti 37 Resident Scholar 37 Biological anthropologist 37 Elizabeth Gershoff 37 Anthony Pratkanis professor 37 Ferrel Guillory 37 Scot Wortley 37 Katey Walter 37 Loucky 37 Mark Ensalaco 37 Levitsky professor 37 Renée Mauborgne 37 Alfred Blumstein 37 Industrial Organizational Psychology 37 Robert Novy Marx 37 Applied Politics 37 autism researcher Irva 37 Jean Twenge professor 37 Ulrike Malmendier 37 Ian Lustick 37 DNSc 37 Massachusetts Daily Collegian 37 Prof. Menahem 37 MD MSc 37 Pitney professor 37 Behavioral Scientist 37 statistician 37 neuropsychology rehabilitation 37 Solot 37 starters 4/lf 37 Chua Beng Huat 37 Univesity 37 UW Madison postdoctoral fellow 37 starters #/cf 37 MD rheumatologist 37 Social Psychology 37 associate pastor 37 Christopher Edley dean 37 Lance Izumi 37 Lavrakas 37 Paola Sapienza 37 Chad Meyerhoefer 37 Anti intellectualism 37 bioengineering professor 37 sinologist 37 Robert Fatton Haiti 37 Col. 37 Senior Lecturer 37 Inzlicht 37 counselor Beth Peshkin 37 adolescent psychiatrist 37 economist Alan Blinder 37 Chicana o studies 37 Karen Sternheimer sociologist 37 Kordower 37 Indologist 37 Psychophysiology Lab 37 clinical neuropsychology 37 Giovanni Peri 37 Ph.D. dissertation 37 Dr. Eric Vilain 37 Adam Probolsky Tony 37 dean emeritus 37 Norval Glenn 37 curator 37 Postdoctoral Fellow 37 co authored 37 FSM Contributing Editor 37 Associate Director 37 Air Force ROTC cadet 37 Bioenvironmental Research 37 Professor Cornel 37 Hong Kong Lingnan 37 Shiriki Kumanyika 37 Quin Monson 37 archaeologist 37 Mao Shoulong professor 37 Emerita Professor 37 EDUCATION Attended 37 Ecole des Hautes Etudes 37 MD Ph.D. Associate Professor 37 Applied Demographics 37 Eagly 37 postdoctoral researchers 37 paleoecologist 37 economist Emmanuel Saez 37 Eliza Kempton 37 Lastovicka 37 Casanova sociology professor 37 Carol Byrd Bredbenner 37 Chancellor Emeritus 37 strategist 37 holds Juris Doctorate 37 DrPH 37 Damien Kingsbury professor 37 Leon Festinger 37 Mayka 37 Cooperative Extension educator 37 COL BKB Syracuse 37 scientist Steven Schier 37 Brookings scholar 37 geoarchaeologist 37 Ph.D. Professor Emeritus 37 National Evolutionary Synthesis 37 MD radiation oncologist 37 Weinhauer 37 rheumatologist 37 Meir Litvak 37 associate 37 Deborah Popper 37 Ira Sheskin 37 Perry Zirkel 37 sociologist Elaine Wethington 37 Zindel Segal 37 Puthenpurackal 36 Epel 36 WorkLife Law 36 alumna 36 MD pediatric neurologist 36 Mack Faragher 36 Jianguo Jack 36 adjunct instructor 36 Jonathan Schooler 36 Symphony concertmaster 36 Shira Gabriel 36 Jay Belsky 36 interim provost 36 China Fragile Superpower 36 A. Labroo 36 Troy Duster 36 Joseph Schwietermann professor 36 Carol Weissert 36 University Professors AAUP 36 Fulbright Lecturer 36 Social Norms 36 Dr. Ronald Chervin 36 Adjunct Professor 36 rabbi emeritus 36 Objectivist Club 36 Welsh Bohmer 36 Saguaro Seminar 36 Mary Walshok 36 Alexopoulos GS 36 MD Ph.D. MPH 36 Faculty Associations 36 NCAA Game Summary 36 EuroCollege 36 developmental psychopathology 36 Ezra Susser 36 adolescent psychiatry 36 Alberto Alesina 36 researches 36 Dr 36 Benhabib 36 atmospheric sciences 36 coauthored 36 Intercultural Studies 36 behavioral neuroscience 36 El Kati 36 MD pediatric endocrinologist 36 Chemistry colloquium 36 electron microscopist 36 economists Carmen Reinhart 36 faculty 36 Bill Ong Hing 36 Stephen Gillers professor 36 Neeraj Sood 36 evolutionary biology 36 Lawrence Palinkas 36 ornithologist 36 Timothy Salthouse 36 Electorate Nominating Committee 36 Morehouse Spelman 36 Robyn Gershon 36 Noted historian 36 Cristillo 36 professor Leo Braudy 36 Randt classmate 36 Laura Carstensen 36 Bruce Sacerdote 36 museum curator 36 Wilcox sociology professor 36 Alberto Palloni 36 BSEE degree 36 Neuropsychiatric Institute 36 doctoral degree 36 Tavris 36 teaches cyberlaw 36 An Na'im 36 MD MSPH 36 Comparative Studies 36 economist Gary Schnitkey 36 FPIF contributor 36 Ethnic Studies 36 Coauthors 36 Adjunct Faculty 36 Fiebert 36 F. Schaller 36 Powdthavee 36 Zhao Jian professor 36 reproductive biology 36 Slone Epidemiology Center 36 author Marcia Stefanick 36 starters 5/ss 36 MAR VISITORS 36 pollster Sergio Bendixen 36 Pierre Chandon 36 Doctoral Student 36 Allan Tupper 36 EP Seligman 36 Sciences Po 36 Marianne Bertrand 36 Christopher Gelpi 36 MD neonatologist 36 molecular virologist 36 Louise Hawkley 36 Meiji Gakuin University 36 Casden Forecast 36 Fels Institute 36 Annamaria Lusardi 36 Sleep Disorders Center 36 Molecular geneticist 36 Retired Col. 36 John M Grohol 36 Charles Derber 36 Ethnicity 36 forensic psychiatrist 36 gerontological nursing 36 PhysOrg.com Researchers 36 Lo Sasso 36 doctorate 36 grossly oversimplifies 36 Laitin 36 Univerisity 36 Brym 36 Philippe Rushton 36 A. Akerlof 36 starters #/#b [001] 36 Beijing Renmin 36 Ph.D. postdoctoral associate 36 professor Ernie Goss 36 languages literatures 36 Natalia Gavrilova 36 Sandweiss 36 starters 5/cf 36 Indo Tibetan Buddhist 36 Chaired Professor 36 Chicana o 36 PhD RD 36 gastroenterologist 36 Psychiatrist 36 psychologist Jonathan Haidt 36 Happiness Hypothesis 36 Jing X. 36 Millenson 36 cowrote 36 Charles Perrings 36 forest entomologist 36 Nowlis 36 Religious Studies 36 sessional lecturer 36 Tibetologist 36 Civitas ChildLaw Clinic 36 James Duderstadt 36 ecotoxicologist 36 Klenicki 36 David Neumark 36 Dobash 36 MD PhD MPH 36 Scripps Oceanography 36 electrochemist 36 chemical oceanography 36 SFS '# 36 Dolph Schluter 36 maternal fetal medicine 36 Bronfenbrenner 36 Chaddick Institute 36 UC Berkeley alumnus 36 Vanishing Voter Project 36 biological oceanography 36 fisheries ecologist 36 Pro fessor 36 Justiceworks 36 Harry Pachon 36 Brescoll 36 Biklen 36 pediatric infectious 36 Ludi Simpson 36 de la Universidad de 36 G. Philip Rightmire 36 Neuropsychologist 36 Child Traumatic Stress 36 clinical dietitian 36 adjoint professor 36 Rhie 36 Claudia Goldin 36 Applied Ethics 36 Fenglin Niu 36 Universitys 36 RAY SUAREZ Professor 36 Sam Gindin 36 Terisa 36 Barbara Dafoe Whitehead 36 Nancy Folbre 36 licensed psychotherapist 36 Moaddel 36 Seismology Laboratory 36 Urbana Champaign Chancellor 36 manuscript Klausen 36 laywoman 36 Philip Seib 36 sociology criminology 36 Robert Fatton Jr. 36 Jean Twenge psychology 36 coached collegiately 36 Lindsay Farrer 36 Jana Vamosi 36 Strategic Studies 36 DO MPH 36 economist Esmael Adibi 36 Stephan Haggard 36 Xu Mingbao senior 36 Virologist 36 psychobiology 36 Planetary scientist 36 Alexander Keyssar 36 Shu Ling 36 Tim Kasser 36 Janis Wolak 36 Karen Sternheimer 36 doctoral thesis