Richard May

ORCID: 0000-0001-8021-5105
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About
Contact & Profiles
Research Areas
  • Birth, Development, and Health
  • Gestational Diabetes Research and Management
  • Obesity, Physical Activity, Diet
  • Circadian rhythm and melatonin
  • Autopsy Techniques and Outcomes
  • Fibromyalgia and Chronic Fatigue Syndrome Research
  • Forensic Anthropology and Bioarchaeology Studies
  • Stress Responses and Cortisol
  • Urological Disorders and Treatments
  • Pregnancy and preeclampsia studies
  • Health and Conflict Studies
  • Health and Lifestyle Studies
  • Oceanographic and Atmospheric Processes
  • Cardiovascular Disease and Adiposity
  • Syphilis Diagnosis and Treatment
  • Data-Driven Disease Surveillance
  • Blood Pressure and Hypertension Studies
  • Non-Invasive Vital Sign Monitoring
  • Child Nutrition and Water Access
  • Cardiovascular and exercise physiology
  • Infant Nutrition and Health
  • Heart Rate Variability and Autonomic Control
  • Census and Population Estimation
  • Marine and fisheries research
  • Oil Spill Detection and Mitigation

Southern Oregon University
2002-2022

Ashland (United States)
2002-2022

Arizona Department of Health Services
2016

Maricopa County Department of Public Health
2016

Pima County Health Department
2016

Centers for Disease Control and Prevention
2016

The Centers
2016

Morningside College
2000-2001

Kent State University
1992-1993

Abstract The effects of changes in nutritional and health status upon bone enamel development are examined a sample 63 rural Guatemalan children (24 females, 39 males). number ossified hand‐wrist centers at 3 years the linear hypoplasias (LEH) ∼0–3 year zones developing teeth were used to monitor response mineralization matrix formation illness supplementation. Numbers LEH compared across sex, supplementation, morbidity groups. Enamel secretion responded positively increased Children who...

10.1002/ajpa.1330920104 article EN American Journal of Physical Anthropology 1993-09-01

Accurate identification of fetal age is important in a wide variety circumstances. Seventeen anthropometric and radiographic measurements were taken on fetuses between 15 42 weeks gestational age, both with without pathologic conditions. A full evaluation including radiographic, karyotypic, gross anatomic, histologic examination the fetus placenta identified 72 individuals as nondysmorphic no signs chronic uterovascular insufficiency. These specimens served control group. Based least-squares...

10.1002/1096-8644(200011)113:3<305::aid-ajpa3>3.0.co;2-r article EN American Journal of Physical Anthropology 2000-01-01

Baseline heart rate variability (HRV) is linked to prospective cardiovascular health. We tested intensity and duration of weekly physical activity as predictors in young adults. Time frequency domain indices HRV were calculated based on 5-min resting electrocardiograms collected from 82 undergraduate students. Hours per week both moderate vigorous estimated using the International Physical Activity Questionnaire. In regression analyses, hours activity, but not significantly predicted greater...

10.1186/s40101-017-0140-z article EN cc-by Journal of PHYSIOLOGICAL ANTHROPOLOGY 2017-06-14

This study was designed to test predictors of infant birth weight based on categories prepregnancy body mass index (BMI), gestational gain, and smoking. Data were collected retrospectively from records 233 mother-infant pairs enrolled in the Siouxland Women, Infants, Children (WIC) Program Sioux City, Iowa. Prepregnancy BMI gain coded according Institute Medicine guidelines. Smoking behavior reported smoking during last 3 months pregnancy. Multiple regression analysis used weight. Forty-two...

10.1002/ajhb.20572 article EN American Journal of Human Biology 2007-04-09

Abstract Demographic, nutritional, and anthropometric data were collected from 134 preschool children enrolled in the Siouxland Special Supplemental Nutrition Program for Women, Infants, Children (WIC). All diagnosed as overweight between ages of 8 months 3 years. Weight length/height z‐scores calculated birth measurements postnatal up to The main hypothesis involved stability weight successive WIC visits. Average changes tested significance using paired t ‐tests. Multiple regression...

10.1002/ajhb.10094 article EN American Journal of Human Biology 2002-10-24

Patterns of early postnatal growth were analyzed among low birthweight infants enrolled in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). Infants divided into four groups according to their neonatal status: (1) term, normal (NBW); (2) (LBW); (3) moderately preterm LBW; (4) very LBW. Comparison mean weight length z-scores indicated that term NBW LBW at or near national reference averages 8, 12, 18 months. Term lighter shorter than other two study each...

10.1002/1520-6300(200102/03)13:2<261::aid-ajhb1037>3.0.co;2-m article EN American Journal of Human Biology 2001-01-01

Increasing numbers of reported primary and secondary (P&S) syphilis cases in the United States suggest need for improved surveillance methods. An outbreak detection method using test results, which can be counted before conclusion a case investigation, could lead to timelier detection.The historical limits comparison was used compare number positive rapid plasma reagin results during 2011-2014 with data preceding 3 years. alert generated when monthly count quantitative greater than mean plus...

10.1097/olq.0000000000000443 article EN Sexually Transmitted Diseases 2016-05-19

Abstract According to National Oceanic and Atmospheric Administration's (NOAA's) official economic statistics, over half of the U.S. population lives within 50 miles coast. At sea, maritime commerce has tripled since about 1960‐2010. The Weather Service (NWS) Marine Program a mission provide marine forecasts warnings for coastal waters Great Lakes, offshore high seas portions Pacific Atlantic Oceans, Gulf Mexico, Caribbean, portion Arctic Ocean (north Alaska). This information helps protect...

10.4031/mtsj.49.2.12 article EN cc-by-nc-nd Marine Technology Society Journal 2015-03-01

This study was designed to identify maternal characteristics associated with smoking during pregnancy and inappropriate gestational weight gain.Data were collected retrospectively from records of 252 women enrolled in the Siouxland WIC (Women, Infants, Children) program Sioux City, Iowa.Twenty-three percent reported pregnancy.Forty-four gained more than recommended 21 less recommended.Maternal demographic tested as predictors gain using logistic regression analysis.Adjusted odds ratios...

10.2174/1874297100902010020 article EN The Open Epidemiology Journal 2009-02-27

This paper introduces and discusses the use of standardized residuals as a technique for comparing growth normal pathologic human fetuses. Anthropometric measures, radiographic organ weights were regressed on known gestational age second- third-trimester Standardized calculated group potentially growth-impaired Use aids in identification patterns alteration specific pathologies. Most important, studying response developing systems to variety insults may elucidate mechanisms regulation fetus....

10.1002/tera.1420460506 article EN Birth Defects Research 1992-11-01
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