Kevin Riley

Kevin Riley is the director of research and evaluation at LOSH. With over a decade of experience conducting worker- and community-engaged research and worker training initiatives, he leads LOSH efforts to investigate job hazards among workers in various industries and sectors, with the goal of informing public policy and improving workplace health and safety programs. His work has examined the injury experiences of workers in the low-wage labor market, community-level associations between heat-related hospitalizations and outdoor work, and workers’ compensation eligibility and access among residential day laborers and domestic workers. His interests also include the history of occupational safety and health policies and activism.

Kevin serves as principal investigator for the Western Region Universities Consortium (WRUC), a partnership of four university-based hazardous materials (HAZMAT) training programs funded by the National Institute of Environmental Health Sciences (NIEHS) Worker Training Program. In this role, he has led training initiatives on infectious disease hazards for healthcare workers in California as well as several projects to evaluate the impacts of HAZMAT training on workers and managers.

He holds a PhD in sociology and a master’s in public health, both from UCLA.

Niklas Krause

Dr. Krause is the Director of the NIOSH Southern California Education and Research Center and Professor in Environmental Health Sciences at UCLA. Before his appointment at UCLA, Dr. Krause has been associate professor in residence in the Division of Occupational and Environmental Medicine of the Department of Medicine at the University of California San Francisco. He received his medical degree and a doctoral degree in orthopedic medicine from the University of Hamburg, Germany, and a doctoral degree in epidemiology from the University of California Berkeley.

Recent Publications

The Paradoxical Effects of Occupational Versus Leisure-Time Physical Activity
Holtermann A., Coenen P., Krause N. (2020) In: Theorell T. (eds) Handbook of Socioeconomic Determinants of Occupational Health. Handbook Series in Occupational Health Sciences. Springer, Cham.

Job strain associated with increases in ambulatory blood and pulse pressure during and after work hours among female hotel room cleaners.
Feaster M, Krause N.
Am J Ind Med. 2018 Jun;61(6):492-503. PMID: 29569256

Do highly physically active workers die early? A systematic review with meta-analysis of data from 193 696 participants.
Coenen P, Huysmans MA, Holtermann A, Krause N, van Mechelen W, Straker LM, van der Beek AJ.
Br J Sports Med. 2018 May 14. PMID: 29760168

Do Sit-Stand Workstations Improve Cardiovascular Health?
Rempel D, Krause N.
J Occup Environ Med. 2018 Apr 19. PMID: 29677023

Parental occupational exposures and the risk of childhood sporadic retinoblastoma: a report from the Children’s Oncology Group.
Omidakhsh N, Bunin GR, Ganguly A, Ritz B, Kennedy N, von Ehrenstein OS, Krause N, Heck JE.
Occup Environ Med. 2018 Mar;75(3):205-211. PMID: 29074554

The physical activity paradox: six reasons why occupational physical activity (OPA) does not confer the cardiovascular health benefits that leisure time physical activity does. 
Holtermann A, Krause N, van der Beek AJ, Straker L.
Br J Sports Med. 2018 Feb;52(3):149-150. PMID: 28798040

Parental occupational exposures and the risk of childhood sporadic retinoblastoma: a report from the Children’s Oncology Group 
Omidakhsh N, Bunin GR, Ganguly A, Krause Net al
Occup Environ Med. 26 October 2017.

Physical activity and 22‐year allcause and coronary heart disease mortality 
Krause N, Arah OA, Kauhanen J
American Journal of Industrial Medicine 60 (11), 976-9900. 20 September 2017.

The physical activity paradox: six reasons why occupational physical activity (OPA) does not confer the cardiovascular health benefits that leisure time physical activi
Holtermann A, Krause N, van der Beek AJ, et. al
Br J Sports Med. 10 August 2017.

Do highly active workers die early? elucidating the physical activity health paradox in a systematic review with meta-analyses 
Coenen P, Huysmans M, Holtermann A, Krause N et al
Occup Environ Med 2017;74:A3-A4. 

Work environment: An opportunity for ground-breaking collaborations in cardiovascular disease prevention 
Ferrario MM, Landsbergis P, Tsutsumi A, Li J, Hynek P, Krause N, Smith P …
European journal of preventive cardiology 24 (2_suppl), 4-60 2/15/2017

Does aerobic exercise increase 24-hour ambulatory blood pressure among workers with high occupational physical activity?—a RCT 
M Korshøj, N Krause, E Clays, K Søgaard, P Krustrup, A Holtermann
American Journal of Hypertension 30 (4), 444-4500 2/15/2017

Shift work and 20-year incidence of acute myocardial infarction: results from the Kuopio Ischemic Heart Disease Risk Factor Study 
A Wang, OA Arah, J Kauhanen, N Krause
Occup Environ Med 73 (9), 588-594 2016

Effects of leisure-time and occupational physical activities on 20-year incidence of acute myocardial infarction: mediation and interaction 
A Wang, OA Arah, J Kauhanen, N Krause
Scandinavian Journal of Work Environment & Health 42 (5), 1 Jan 2016. 

Physical activity and 22-year all-cause and coronary heart disease mortality.

Krause N, Arah OA, Kauhanen J.

American journal of industrial medicine. 2017; 60(11):976-990. PMID 28940659

Patrick Dowling

Patrick T. Dowling, M.D., M.P.H. Bio Sketch Patrick T. Dowling, MD, MPH is the Kaiser Permanente Endowed Professor of Community Medicine and Chair of the UCLA Dept. of Family Medicine. A graduate of the Medical College of Ohio and the University Of Michigan School of Public Health, he completed his residency training in Family Medicine at Cook County Hospital in Chicago under Jorge Prieto, MD and Michael Stocker, MD. He is board certified in Family Medicine, Preventive Medicine and Public Health. Prior to joining UCLA as the first permanent Chair of Family Medicine in 1998, Dr. Dowling directed Family Medicine Residency training programs at Cook County Hospital, Brown University in Rhode Island and at Harbor-UCLA Medical Center. He has served on the National Advisory Council of the National Health Service Corps, as a Commissioner of Public Health for LA County and is presently a member of the Board of Trustees of the Drew University of Medicine and Science in South-Central LA. His professional interests include health policy, the science of health care delivery and the provision of care to underserved and minority communities. A common thread in his career has been the linkage of graduate medical education to underserved communities as a means to improve access and reduce health outcomes disparities among racial and ethnic minorities. Further, his research interests include chronic disease management, cross cultural and bi-national medicine and the integration of substance abuse treatment programs within primary care. He is Co-founder and Associate Director of the UCLA Department of Family Medicine IMG program, an innovative program to prepare bilingual (English-Spanish) International Medical Graduates (IMGs) to become eligible for licensure and residency training in Family Medicine in California. Ever since his days as Medical Director of the United Farm Workers Clinics (UFW) under Cesar Chavez in California?s Coachella and Imperial valleys he has believed that health care is a unique social goal and basic right. He remains optimistic that President Obama and the Congress will finally do what 7 presidents since Franklin Roosevelt tried and failed, that is to provide universal coverage for all, like the rest of the industrialized world.

Candace Tsai

Dr. Candace Tsai is an Associate Professor in the Department of Environmental Health Sciences at UCLA. She is a Certified Industrial Hygienist (CIH) and has several years of practical experience in industry and business settings.  She has been working on multidisciplinary research projects and collaborates with scientists in the U.S. and internationally.  She has applied her expertise in research and teaching, in the fields of health science, aerosol science, toxicology, engineering, human protection, and policy. She serves as a board member in the Sustainable Nanotechnology Organization, as Associate Editor for Journal of Nanoparticle Research, and on the Editorial Advisory Board for ACS Chemical Health and Safety Journal. With her special expertise in nanomaterials, she has served as an expert for the International Organization for Standardization (ISO) and the World Health Organization (WHO) in the nanotechnology programs and she currently serves as a Threshold Limit Value (TLV) committee candidate for the American Conference of Governmental Industrial Hygienists (ACGIH).


Ellenbecker, M.J., and Tsai, S., Health and Safety Considerations for Working with Engineered Nanoparticles, Wiley Interscience, 2015.

Peer-Reviewed Journal Articles

Tsai, C.S.J.*, Shin, N., Brune, J., Evaluation of sub micrometer sized particles generated from diesel locomotive and drilling within an experimental underground mine, Annals of Work Exposures and Health, July 28, 2020.

Back, D., Theisen, D., Seo, W., Tsai, C.S.J.*, Janes, D.*, Development of Interdigitated Capacitive Sensor for Real-time Monitoring of Sub-micron and Nanoscale Particulate Matters in Personal Sampling Device for Mining Environment, IEEE Sensors Journal, May 20, 2020.

Calcaterra, H., Shin, N., Quirk, P., Tsai, C.S.J.*, Low Concentration Analysis of Silver Nanoparticles in Consumer Spray Products, Atmosphere, 11, 403, April 17, 2020.

Khattak, J., Theisen, D., Tsai, C.S.J.*, Sampling Techniques on Collecting Fine Carbon Nanotube Fibers for Exposure Assessment, Scientific Reports, 9, article number: 7137, 2019.

Shin, N., Velmurugan, K., Su, C., Bauer, A., Tsai, C.S.J.*, Assessment of fine particles emitted during paper printing and shredding processes, Environmental Science: Processes & Impacts, 21, 1342-1352, 2019.

Tsai, C.S.J.*, Theisen, D., A sampler designed for nanoparticles and respirable particles with direct analysis feature, Journal of Nanoparticle Research, 20:209, 2018.

Ellenbecker, M., Tsai, C.S.J., Jacobs, M., Riedeker, M., Peters, T., Liou, S., Avila, A., Foss-Hanson, S., The difficulties in establishing an occupational exposure limit for carbon nanotubes, Journal of Nanoparticle Research, 20:131, 2018.

Pastrana, H., Avila, A., Tsai, C.S.J.*, Nanomaterials in cosmetics products: the challenges with regard to current legal frameworks and consumer exposure, NanoEthics, Aug. 12(2), 2018.

Lo, L., Tsai, C.S.J.*, Heitbrink, W., Dunn, K., Topmiller, J., Ellenbecker, M., Particle emissions from laboratory activities involving carbon nanotubes, Journal of Nanoparticle Research, 19:293, 2017.

Tsai, S.*, Shin, N., Castano, A., Khattak, J., Wilkerson, A., Lamport, N., A pilot study on particle emission from printer paper shredders, Aerosol Science and Technology, 1-12, 2017.

Shinde, A., Tsai, S.*, Toxicity mechanism in fetal lung fibroblast cells for multi-walled carbon nanotubes defined by chemical impurities and dispersibility, Toxicology Research, 5:248-258, 2016.

Tsai, S.*, Dysart, A., Beltz, J., Pol, V., Identification and mitigation of generated solid by-products during advanced electrode materials processing, Environmental Science and Technology, 50(5):2627-2634, 2016.

Tsai, S.*, Contamination and release of nanomaterials associated with the use of personal protective clothing, Annals of Occupational Hygiene, 59(4):491-503, 2015.

Tsai, S.*, Hofmann, M., Kong, J., Hallock, M., Ada, E., Ellenbecker, M., Assessment of exhaust emissions from carbon nanotube production and particle collection by sampling filters, Journal of the Air & Waste Management Association, 65(11):1376-1385, 2015.

Liou, S.H., Tsai, S., Pelclova, D., Schubauer-Berigan, M., Schulte, P., Assessing the first wave of epidemiological studies of nanomaterial workers, Journal of Nanoparticle Research, 17:413, 2015.

Lo, L., Tsai, S.*, Dunn, K., Hammond, D., Marlow, D., Topmiller, J., Ellenbecker, M., Performance of particulate containment at nanotechnology workplaces, Journal of Nanoparticle Research, 17:435, 2015.

Gordon, S., Butala, J., Carter, J., Elder, A., Gordon, T., Gray, G., Sayre, P., Schulte, P., Tsai, S., West, J., Workshop report: strategies for setting occupational exposure limits for engineered nanomaterials, Regulatory Toxicology and Pharmacology, 68:305-311, 2014.

Dunn, K., Tsai, S., Woskie, S., Bennett, J., Garcia, A., Ellenbecker, M., Evaluation of leakage from fume hoods using tracer gas, tracer nanoparticles and nanopowder handling test methodologies, Journal of Occupational and Environmental Hygiene, 11(10):D164-D173, 2014.

Tsai, S.*, Echevarría-Vega, M., Sotiriou, G., Santeufemio, C., Schmidt, D., Demokritou, P., Ellenbecker, M., Evaluation of environmental filtration control to engineered nanoparticles using the Harvard versatile engineered nanomaterial generation system (VENGES), Journal of Nanoparticle Research, 14:812, 2012.

Ellenbecker, M., Tsai, S., Engineered nanoparticles: safer substitutes for toxic materials, or a new hazard? Journal of Cleaner Production, 19(5):483-487, 2011.

Tsai, S.*, Huang, R.F., Ellenbecker, M., Airborne nanoparticle exposures while using conventional, constant velocity and air-curtain isolated hoods, Annals of Occupational Hygiene, 54(1):78-87, 2010.

Tsai, S.*, Ada, E., Isaacs, J., Ellenbecker, M., Airborne nanoparticle exposures associated with the manual handling of nanoalumina and nanosilver in fume hoods, Journal of Nanoparticle Research, 11(1):147-161, 2009.

Tsai, S.*, Hofmann, M., Kong, J., Hallock, M., Ada, E., Ellenbecker, M., Characterization and evaluation of nanoparticle release during the synthesis of single-walled and multi-walled carbon nanotubes by chemical vapor deposition, Environmental Science and Technology, 43(15):6017-6023, 2009.

More Publications at Google Scholar

Jian Li

Li has joined in UCLA as a professor from 2019. He shares a position between the Fielding School of Public Health, Environmental Health Sciences Department and the School of Nursing. Before his appointment at UCLA, Dr. Li had been working in China and Germany with extensive experience on occupational health. He is an active member of the International Commission on Occupational Health (ICOH) Scientific Committees on Cardiology in Occupational Health, and on Work Organisation and Psychosocial Factors. During 2006-2010, Dr. Li received three Early Career Awards from the US National Institute for Occupational Safety and Health (NIOSH) and other international research societies. Dr. Li’s research interests are psychosocial factors, work stress and health, particularly on epidemiology and intervention evaluation. He has published more than 100 scientific articles in peer-reviewed journals.

Recent Publications

Cumulative Exposure to Long Working Hours and Occurrence of Ischemic Heart Disease: Evidence from the CONSTANCES Cohort at Inception. 
Fadel M, Li J, Sembajwe G, Gagliardi D, Pico F, Ozguler A, Evanoff BA, Baer M, Tsutsumi A, Iavicoli S, Leclerc A, Roquelaure Y, Siegrist J, Descatha A.
J Am Heart Assoc. 2020 Jun 16;9(12):e015753.

The effect of exposure to long working hours on ischaemic heart disease: A systematic review and meta-analysis from the WHO/ILO Joint Estimates of the Work-related Burden of Disease and Injury. 
Li, J., Pega, F., Ujita, Y., Brisson, C., Clays, E., Descatha, A., … & Metzendorf, M. I. (2020). Environment International142, 105739.

The effect of exposure to long working hours on stroke: A systematic review and meta-analysis from the WHO/ILO Joint Estimates of the Work-related Burden of Disease and Injury. 
Descatha A, Sembajwe G, Pega F, Ujita Y, Baer M, Boccuni F, Di Tecco C, Duret C, Evanoff BA, Gagliardi D, Godderis L, Kang SK, Kim BJ, Li J, Magnusson Hanson LL, Marinaccio A, Ozguler A, Pachito D, Pell J, Pico F, Ronchetti M, Roquelaure Y, Rugulies R, Schouteden M, Siegrist J, Tsutsumi A, Iavicoli S. Environ Int. 2020 Sep;142:105746.

Effort-Reward Imbalance and Occupational Health
Siegrist J, Li J. Handbook of Socioeconomic Determinants of Occupational Health: From Macro-level to Micro-level Evidence. (2020)1-28.

Changes in the association between job decision latitude and work engagement at different levels of work experience: A 10-year longitudinal study. 
Heinrichs K, Angerer P, Li J, Loerbroks A, Weigl M, Müller A. Work & Stress. 2019 Feb 12:1-6.

Concepts and Social Variations of Disability in Working-Age Populations. 
Siegrist J., Li J. (2020) In: Bültmann U., Siegrist J. (eds) Handbook of Disability, Work and Health. Handbook Series in Occupational Health Sciences, vol 1. Springer, Cham

Additional Publications

FADEL M, SEMBAJWE G, GAGLIARDI D, PICO F, LI J, OZGULER A, SIEGRIST J, EVANOFF BA, BAER M, TSUTSUMI A, IAVICOLI S, LECLERC A, ROQUELAURE Y, DESCATHA A. Association Between Reported Long Working Hours and History of Stroke in the CONSTANCES Cohort. Stroke. 2019 Jul;50(7):1879-1882.

LI J, ATASOY S, FANG X, ANGERER P, LADWIG KH. Combined Effect of Work Stress and Impaired Sleep on Coronary and Cardiovascular Mortality in Hypertensive Workers: The MONICA/KORA Cohort Study. European Journal of Preventive Cardiology, online published on 2019 Apr 27:2047487319839183. doi: 10.1177/2047487319839183.

MUTAMBUDZI M, THEORELL T, LI J. Job Strain and Long-Term Sickness Absence from Work – A Ten-Year Prospective Study in German Working Population. Journal of Occupational and Environmental Medicine, 2019, 61 (4): 278-284.

LI J, SIEGRIST J. The Role of Compensation in Explaining Harmful Effects of Overtime Work on Self-reported Heart Disease: Preliminary Evidence from a Germany Prospective Cohort Study. American Journal of Industrial Medicine, 2018, 61 (10): 861-868.

LI J, BIDLINGMAIER M, PETRU R; PEDROSA GIL F; LOERBROKS A; ANGERER P. Impact of Shift Work on the Diurnal Cortisol Rhythm: A One-year Longitudinal Study in Junior Physicians. Journal of Occupational Medicine and Toxicology, 2018, 13: 23.

LI J, BRISSON C, CLAYS E, FERRARIO MM, IVANOV ID, LANDSBERGIS P, LEPPINK N, PEGA F, PIKHART H, PRÜSS-ÜSTÜN A, RUGULIES R, SCHNALL PL, STEVENS G, TSUTSUMI A, UJITA Y, SIEGRIST J. WHO/ILO Work-related Burden of Disease and Injury: Protocol for Systematic Reviews of Exposure to Long Working Hours and of the Effect of Exposure to Long Working Hours on Ischaemic Heart Disease. Environment International, 2018, 119: 558-569.

KAEWBOONCHOO O, SEMBAJWE G, LI J. Associations between Job Strain and Arterial Stiffness: A Large Survey among Enterprise Employees from Thailand. International Journal of Environmental Research and Public Health, 2018, 15 (4). pii: E659.

WEGE N, LI J, SIEGRIST J. Are There Gender Differences in Associations of Effort-Reward Imbalance at Work with Self-Reported Doctor-Diagnosed Depression? Prospective Evidence from the German Socio-Economic Panel. International Archives of Occupational and Environmental Health, 2018, 91 (4): 435-443.

BECHER H, DOLLARD MF, SMITH P, LI J. Predicting Circulatory Diseases from Psychosocial Safety Climate: A Prospective Cohort Study from Australia. International Journal of Environmental Research and Public Health, 2018, 15 (3). pii: E415.

MAUSS D, HERR RM, THEORELL T, ANGERER P, LI J. Validating the Demand Control Support Questionnaire among White-Collar Employees in Switzerland and the United States. Journal of Occupational Medicine and Toxicology, 2018, 13: 7.

MUTAMBUDZI M, SIEGRIST J, MEYER JD, LI J. Association between Effort-Reward Imbalance and Self-Reported Diabetes Mellitus in Older U.S. Workers. Journal of Psychosomatic Research, 2018, 104: 61-64.

ZHANG M, LOERBROKS A, LI J. Job Burnout Predicts Decline of Health-Related Quality of Life among Employees with Cardiovascular Disease: A One-Year Follow-Up Study in Female Nurses. General Hospital Psychiatry, 2018, 50: 51-53.

HERR RM, ALMER C, LOERBROKS A, BARRECH A, ELFANTEL I, SIEGRIST J, GÜNDEL H, ANGERER P, LI J. Associations of Work Stress with Hair Cortisol Concentrations – Initial Findings from a Prospective Study. Psychoneuroendocrinology, 2018, 89: 134-137.

HERR RM, LI J, LOERBROKS A, ANGERER P, SIEGRIST J, FISCHER JE. Effects and Mediators of Psychosocial Work Characteristics on Somatic Symptoms Six Years Later: Prospective Findings from the Mannheim Industrial Cohort Studies (MICS). Journal of Psychosomatic Research, 2017, 98: 27-33.

FERRARIO MM, LANDSBERGIS P, TSUTSUMI A, LI J, HYNEK P, KRAUSE N, SMITH P, HOLTERMANN A, CLAYS AE; ICOH Scientific Committee on Cardiology in Occupational Health. Work Environment: An Opportunity for Ground-Breaking Collaborations in Cardiovascular Disease Prevention. European Journal of Preventive Cardiology, 2017, 24 (2_suppl): 4-6.

ANGERER P, SCHMOOK R, ELFANTEL I, LI J. Night Work and the Risk of Depression: A Systematic Review. Deutsches Ärzteblatt International, 2017, 114 (24): 404-411.

LI J, RIEDEL N, BARRECH A, HERR RM, AUST B, MÖRTL K, SIEGRIST J, GÜNDEL H, ANGERER P. Long-Term Effectiveness of a Stress Management Intervention at Work: A 9-Year Follow-Up Study Based on a Randomized Wait-List Controlled Trial in Male Managers. BioMed Research International, 2017, 2017: 2853813.

RIEDEL N, LOERBROKS A, BOLTE G, LI J. Do Perceived Job Insecurity and Annoyance due to Air and Noise Pollution Predict Self-Rated Poor Health? A Prospective Analysis of Independent and Joint Associations Using a German National Representative Cohort Study. BMJ Open, 2017, 7 (1): e012815.

RIEDEL N, SIEGRIST J, WEGE N, LOERBROKS A, ANGERER P, LI J. Do Effort and Reward at Work Predict Changes in Cognitive Function? First Longitudinal Results from the Representative German Socio-Economic Panel. International Journal of Environmental Research and Public Health, 2017, 14 (11). pii: E1390.

WEGE N, ANGERER P, LI J. Effects of Lifetime Unemployment Experience and Job Insecurity on Two-Year Risk of Physician-Diagnosed Incident Depression in the German Working Population. International Journal of Environmental Research and Public Health, 2017, 14 (8). pii: E904.

LI J, RIEDEL N, BARRECH A, HERR RM, AUST B, MÖRTL K, SIEGRIST J, GÜNDEL H, ANGERER P. Nine-Year Longitudinal Psychosocial and Mental Outcomes of a Stress Management Intervention at Work Using Psychotherapeutic Principles. Psychotherapy and Psychosomatics, 2017, 86 (2): 113-115.

SIEGRIST J, LI J. Work Stress and Altered Biomarkers: A Synthesis of Findings Based on the Effort-Reward Imbalance Model. International Journal of Environmental Research and Public Health, 2017, 14 (11). pii: E1373.

LI J, LOERBROKS A, BOSMA H, ANGERER P. Work Stress and Cardiovascular Disease: A Life Course Perspective. Journal of Occupational Health, 2016, 58 (2): 216-219.

LOERBROKS A, SHANG L, ANGERER P, LI J, CHINESE NEXT STUDY GROUP. Psychosocial Work Characteristics and Needle Stick and Sharps Injuries among Nurses in China: A Prospective Study. International Archives of Occupational and Environmental Health, 2015, 88 (7): 925-932.

LI J, DOLLARD MF, LOERBROKS A, ANGERER P. Cardiovascular Disease is Associated with the Perception of Worsening Psychosocial Work Characteristics. International Journal of Cardiology, 2015, 186: 149-151.

LOERBROKS A, SHANG L, ANGERER P, LI J. Effort-Reward Imbalance at Work Increases the Risk of the Metabolic Syndrome: A Prospective Study in Chinese University Staff. International Journal of Cardiology, 2015, 182: 390-391.

LI J, ZHANG M, LOERBROKS A, ANGERER P, SIEGRIST J. Work Stress and the Risk of Recurrent Coronary Heart Disease Events: A Systematic Review and Meta-Analysis. International Journal of Occupational Medicine and Environmental Health, 2015, 28 (1): 8-19.

LOERBROKS A, WEIGL M, LI J, GLASER J, DEGEN C, ANGERER P. Workplace Bullying and Depressive Symptoms: A Prospective Study among Junior Physicians in Germany. Journal of Psychosomatic Research, 2015, 78 (2): 168-172.

LOERBROKS A, BOSCH JA, DOUWES J, ANGERER P, LI J. Job Insecurity is Associated with Adult Asthma in Germany during Europe’s Recent Economic Crisis: A Prospective Cohort Study. Journal of Epidemiology and Community Health, 2014, 68 (12): 1196-1199.

JARCZOK MN, JARCZOK M, MAUSS D, KOENIG J, LI J, HERR RM, THAYER JF. Autonomic Nervous System Activity and Workplace Stressors – A Systematic Review. Neuroscience & Biobehavioral Reviews, 2013, 37 (8): 1810-1823.

LI J, WEIGL M, GLASER J, PETRU R, SIEGRIST J, ANGERER P. Changes in Psychosocial Work Environment and Depressive Symptoms: A Prospective Study in Junior Physicians. American Journal of Industrial Medicine, 2013, 56 (12): 1414-1422.

GALATSCH M, LI J, DERYCKE H, MÜLLER BH, HASSELHORN HM. Effects of Requested, Forced and Denied Shift Schedule Change on Work Ability and Health of Nurses in Europe – Results from the European NEXT-Study. BMC Public Health, 2013, 13: 1137.

LI J, JARCZOK MN, LOERBROKS A, SCHÖLLGEN I, SIEGRIST J, BOSCH JA, WILSON MG, MAUSS D, FISCHER JE. Work Stress is Associated with Diabetes and Prediabetes: Cross-Sectional Results from the MIPH Industrial Cohort Studies. International Journal of Behavioral Medicine, 2013, 20 (4): 495-503.

LI J, SHANG L, GALATSCH M, SIEGRIST J, MÜLLER BH, HASSELHORN HM, NEXT STUDY GROUP. Psychosocial Work Environment and Intention to Leave the Nursing Profession: A Cross-National Prospective Study of Eight Countries. International Journal of Health Services, 2013, 43 (3): 519-536.

LI J, GALATSCH M, SIEGRIST J, MÜLLER BH, HASSELHORN HM, EUROPEAN NEXT STUDY GROUP. Reward Frustration at Work and Intention to Leave the Nursing Profession – Prospective Results from the European Longitudinal NEXT Study. International Journal of Nursing Studies, 2011, 48 (5): 628-635.

LI J, FU H, HU Y, SHANG L, WU YH, KRISTENSEN TS, MUELLER BH, HASSELHORN HM. Psychosocial Work Environment and Intention to Leave the Nursing Profession: Results from the Longitudinal Chinese NEXT Study. Scandinavian Journal of Public Health, 2010; 38 (Suppl 3): 69-80.

LI J, YANG W, CHO SI. Gender Differences in Job Strain, Effort-Reward Imbalance, and Health Functioning among Chinese Physicians. Social Science & Medicine, 2006, 62 (5): 1066-1077.

LI J, YANG W, CHENG Y, SIEGRIST J, CHO SI. Effort-Reward Imbalance at Work and Job Dissatisfaction in Chinese Healthcare Workers: a Validation Study. International Archives of Occupational and Environmental Health, 2005, 78 (3): 198-204.

LI J, YANG W, LIU P, XU Z, CHO SI. Psychometric Evaluation of the Chinese (Mainland) Version of Job Content Questionnaire: a Study in University Hospitals. Industrial Health, 2004, 42 (2): 260-267.

John Froines

Professor Froines joined the faculty of the School of Public Health in 1981. He received a B.S. in chemistry from UC Berkeley (1963), M.S. in chemistry (1964) and Ph.D. in physical-organic chemistry (1967) from Yale University. He conducted postdoctoral research at the Royal Institution of Great Britain under Nobel Laureate, Sir George Porter from 1966-68. Before coming to the UCLA School of Public Health, Dr. Froines was Assistant Professor of Chemistry at the University of Oregon and later served as Director of Toxic Substances at the Occupational Safety and Health Administration and Deputy Director of the National Institute for Occupational Safety and Health. Dr. Froines served as the Director of the Center for Occupational and Environmental Health for 25 years and is currently the Director of the Southern California Particle Center and Supersite. He is Associate Director of the Southern California Environmental Health Sciences Center and the Director of the UCLA Fogarty Program in Occupational and Environmental Health. He is Director of the Sustainable Technology and Policy Program. He serves on three advisory committees of the South Coast Air Quality Management District. Dr. Froines’ area of expertise is toxicology and exposure assessment. His research interests are in the qualitative and quantitative characterization of risk factors in environmental and occupational health.
Dr. Froines chairs the State of California’s Scientific Review Panel; the central review panel at the State level for identifying toxic air contaminants.

Brian Cole

Brian Cole, Dr.P.H., is program manager and lead analyst for the Health Impact Assessment Group at the UCLA School of Public Health, conducting and providing technical assistance on  HIAs on a wide range of public policies and projects, including Living Wage Ordinances, urban redevelopment, school programs and transportation projects.  Overlapping this work in HIA, Dr. Cole is also engaged in research on the environmental determinants of physical activity in school, workplace and community settings.  He teaches courses in school-based health education and community organization for public health promotion.  He earned his Doctor of Public Health degree from the UCLA School of Public Health and Bachelor degrees in Environmental Science and Biology from Washington State University.

Shane Que Hee

Professor of Environmental Health Sciences (EHS) and a faculty member of the UCLA Center for Occupational and Environmental Health (COEH), came to the Department in 1989 from the University of Cincinnati where he had been Assistant and Associate Professor since 1978. As of the end of 2010, he had 161 peer-reviewed publications including 126 in peer-reviewed journals, 25 book chapters, 4 books, six EPA criteria documents,134 national & international meeting presentations, and 46 keynote addresses at international and national meetings. In addition, he has had 41 grants awarded as Principal Investigator at UCLA. He has organized 13 scientific roundtables and symposia at national and international meetings. He is a Fellow of the American Institute of Chemists and the American Industrial Hygiene Association. He formed the first national committee for risk assessment of skin absorbed chemicals. He reviews for many journals, and many government agencies. He has been a member of TOXNET, the NIOSH Board of Advisors, and currently reviews for the National Toxicology Program.

Recent Publications

Double gloving of disposable nitrile gloves exposed to diethylene glycol mono-n-butyl ether.
Takaku-Pugh S, Que Hee S. Journal of Occupational and Environmental Hygiene. 2020 May 29:1-9.

Glove permeation of chemicals: The state of the art of current practice–Part 2. Research emphases on high boiling point compounds and simulating the donned glove environment.
Banaee S, Que Hee SSJournal of Occupational and Environmental Hygiene. 2020 Apr 2;17(4):135-64.

Glove permeation of chemicals: The state of the art of current practice, Part 1: Basics and the permeations standards. 
Banaee, S., & Que Hee, S. S. (2019). Journal of occupational and environmental hygiene, 1-13.

Whole glove permeation of cyclohexanol through disposable nitrile gloves on a dextrous robot hand: Fist clenching vs. non-clenching.
Airek R. Mathews & Shane S. Que Hee
J Occup Environ Hyg. 2017 Apr;14(4):252-257. doi: 10.1080/15459624.2016.1250006.

Permeation of limonene through disposable nitrile gloves using a dextrous robot hand
Banaee S, and Que Hee, SS.
Journal of Occupational Health. 2017 Jan 21, 2017