John J. May

University of Kentucky

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Paul Jenkins

Bassett Healthcare Network

David S. Pratt

SUNY Schenectady County Community College

Giulia Earle‐Richardson

National Center for Emerging and Zoonotic Infectious Diseases

Julie A. Sorensen

Bassett Healthcare Network

Dirk Bosteels

Association des Operateurs Postaux Publics Europeens

Alice D. Stark

Seattle Pacific University

Melissa Scribani

Bassett Medical Center

Eric M. Hallman

Cornell University

Marta I. Gómez

ERN GUARD-Heart

Cécile Favre

Université Grenoble Alpes

Cooperative Institutions

Museum of Heilongjiang Province

197

Bassett Healthcare Network

University College London

Inserm

Bassett Medical Center

Columbia University

New York Proton Center

Communities In Schools of Orange County

National Institute for Occupational Safety and Health

Assistance Publique – Hôpitaux de Paris

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Alterations in Carbohydrate Quantities in Freeze-Dried, Relative to Fresh or Frozen Maize Leaf Disks

Biomolecules (2023)

Lynnette M.A. Dirk Tianyong Zhao John J. May Tao Li Qinghui Han

For various reasons, leaves are occasionally lyophilized prior to storage at −80 °C and preparing extracts. Soluble carbohydrate identity and quantity from maize leaf disks were ascertained in two separate years using anion exchange HPLC with pulsed electrochemical detection. Analyses were made from disks after freezing in liquid nitrogen with or without subsequent lyophilization (both years) or directly after removal from plants with or without lyophilization (only in the second year). By adding the lyophilizing step, galactose content consistently increased and, frequently, so did galactoglycerols. The source of the galactose increase with the added lyophilizing step was not due to metabolizing raffinose, as the raffinose synthase (rafs) null mutant leaves, which do not make that trisaccharide, also had a similar increase in galactose content with lyophilization. Apparently, the ester linkages attaching free fatty acids to galactoglycerolipids of the chloroplast are particularly sensitive to cleavage during lyophilization, resulting in increases in galactoglycerols. Regardless of the galactose source, a systematic error is introduced for carbohydrate (and, most likely, also chloroplast mono- or digalactosyldiacylglycerol) amounts when maize leaf samples are lyophilized prior to extraction. The recognition of lyophilization as a source of galactose increase provides a cautionary note for investigators of soluble carbohydrates.

Stachyose

Freezing tolerance

10.3390/biom13010148

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Citations (0)

An Analysis of SelfâReported Joint Pain among New York Farmers

Journal of Agricultural Safety and Health (2003)

Marta I. Gómez Sungmin Hwang Alice D. Stark John J. May Eric M. Hallman

Data from the telephone interview portion of the New York State Farm FamilyHealth and Hazard Surveillance Project were used to study the prevalence and predictors ofjoint pain in a cohort of farmers and farm residents. The participants were owner/operators,workers, and residents from a representative sample of farms from 12 New York counties. Atotal of 1706 participants completed a telephone interview on musculoskeletal conditions.Joint trouble was defined as selfreported aches, pain, or discomfort in the past year in eachof five different joint areas. The 12month prevalence of joint trouble was: lower back 41%,neck/shoulders 35%, knees 29%, hands/wrists 28%, and hips 15%. Using logistic regressionmodeling, significant risk factors for joint trouble were identified (p < 0.05). Older age andbeing female increased the risk of aches, pain, or discomfort in most joints. Being theowner/operator increased the risk of neck/shoulder and lower back trouble, and being aworker increased the risk of neck/shoulder trouble. Doing tractor work was associated withtrouble in all five joint areas, and milking was associated with knee trouble. These findingsindicate that personal risk factors and the intensity and nature of the farm work contribute tojoint trouble. Ergonomic improvements to tractors and milking facilities should be a highpriority.

Joint pain

Telephone interview

Neck pain

Signage

10.13031/2013.13004

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Citations (58)

Encouraging Farmers to Retrofit Tractors: A Qualitative Analysis of Risk Perceptions Among a Group of High-Risk Farmers in New York

Journal of Agricultural Safety and Health (2008)

J A Sorensen John J. May Kris Paap Mark A. Purschwitz Maria Emmelin

Tractor rollovers continue to be one of the most frequent causes of agricultural fatalities. Despite knowledge of rollovers and the efficacy of rollover protective structures (ROPS), few New York farmers have considered installing ROPS on their unprotected tractors. Qualitative interviews conducted with an "at-risk" segment of the New York farming community indicate that there are a number of barriers to safety in general and to retrofitting, in particular. The following themes and categories emerged in relation to safety and risk taking: constant exposures to risk with positive outcomes normalizes risk; the modeling of risk by significant others positions risk as part of a farming identity; and the pressure to reduce costs, save time, and accept risk frames risk-taking as the cost-effective option (especially in regard to retrofitting, which farmers believe is both expensive and time-consuming). Recommendations for researchers planning retrofitting interventions would be to focus safety messages on the risk to significant others or on the financial impact of rollovers, and to provide financial incentives and assistance to farmers considering retrofitting.

Retrofitting

Rollover (web design)

Risk Perception

10.13031/2013.24127

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Citations (42)

Organic dust toxic syndrome: A follow‐up study

American Journal of Industrial Medicine (1990)

John J. May Laura H. Marvel David S. Pratt Dominic Coppolo

General hospital

10.1002/ajim.4700170137

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Citations (20)

The God-Image of Nietzsche's 'Also Sprach Zarathustra' as Reflected in Rilke's 'Stundenbuch.'.

John J. May

The concept of God found In Frledi'ich Nietzsche's

Zoroaster

10.31390/gradschool_disstheses.2072

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Massive exposure to aeroallergens in dairy farming: Radioimmunoassay results of dust collection during bedding chopping with culture confirmation

American Journal of Industrial Medicine (1990)

David S. Pratt John J. May Charles E. Reed Mark C. Swanson Amy R. Campbell

10.1002/ajim.4700170132

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Citations (7)

Electromyographic assessment of apple bucket intervention designed to reduce back strain

Ergonomics (2008)

Giulia Earle‐Richardson Paul Jenkins David Strogatz Erin M. Bell Andris Freivalds

The authors previously developed an apple bucket that was modified by use of a hip belt to reduce muscle fatigue. The intervention of belt use was accepted by workers and shown not to interfere with productivity. However, use of this intervention did not appear to reduce muscle fatigue when measured by tests of voluntary muscle strength. The purpose of the present study was to evaluate the intervention's effect on muscle fatigue employing surface electromyographic (EMG) amplitude. Amplitude measurements on 15 muscles were taken from 10 laboratory volunteers who were carrying a full bucket of apples, once while wearing the intervention belt and once without the intervention. These measurements were taken for seven different postures (four angles of trunk flexion (0°, 20°, 45°, 90°) and three raised-arm positions (both up, dominant up, non-dominant up)) common to apple harvest work. Participants were measured in these conditions both with the bucket carried in front and with the bucket carried to the side. Significant reductions in amplitude favouring the intervention were seen for 11 of the 15 muscles in models considering the four body flexion angles. Ten of these were of the middle and lower back. These control/intervention differences were seen with both bucket-carrying positions (front vs. side) and tended to increase with increasing flexion angle. In contrast, no significant intervention effects were observed in models considering treatment by arm-raised position. One significant main effect (upper trapezius, side bucket) showed an amplitude reduction in the treatment condition. Another main effect showing increased amplitude in the intervention condition use was observed in the dominant levator scapulae (side bucket). Thus, the use of the intervention belt reduces EMG amplitude among a number of mid- and lower-back muscles. This is suggestive of a protective effect against back strain.

Muscle Fatigue

10.1080/00140130801939790

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Citations (13)

Respiratory Disease in Migrant Farmworkers

Journal of Occupational and Environmental Medicine (2021)

Nancy W. Bethuel Kai Wasson Melissa Scribani Nicole Krupa Paul Jenkins

Respiratory problems are prevalent among persons who work in agriculture, however, publications examining the respiratory status in LatinX farmworkers are limited. The purpose of this study is to assess the respiratory status of LatinX farmworkers across New York State.This is a retrospective analysis of data gathered from Spanish language OSHA respiratory questionnaires completed between January 2017 and March 2019. The best of three peak flows were compared with predicted normal values derived from regressions using age, gender, and height.Key information was present in 162 Spanish questionnaires. Rates of reported respiratory symptoms were low, less than 2%; 11.7% farmworkers smoked. Best of three peak flows showed a mean of 97.2 ± 16.8% of predicted.New York LatinX farmworkers do not appear to have abnormal rates of respiratory symptoms or low peak flows.

10.1097/jom.0000000000002234

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Citations (1)

Screening Events to Reduce Farmers' Hazardous Exposures

Journal of Agricultural Safety and Health (2007)

Paul Jenkins Suzanne G. Stack Giulia Earle‐Richardson Sharon M. Scofield John J. May

Dairy farmers may be exposed to high levels of noise and dust. Protections against these hazards exist, but many farmers do not use them. An intervention consisting of hearing and respiratory screenings combined with personalized education was implemented. This study evaluates the impact of this intervention on farmers' self-reported use of personal protective equipment (PPE) and implementation of noise and dust abatement. Participants were screened as to noise (n = 209) or dust (n = 392) hazards and use of PPE. Following this, they were counseled on PPE use, and identification and reduction of noise or dust hazards. Counselors sought a pledge from the farmers to eliminate hazards and increase PPE use. Farmers were subsequently surveyed and asked whether they had implemented the changes. At baseline, 70% (146/209) of farmers exposed to high levels of noise reported poor use (sometimes, rarely, or never) of hearing protection. Results indicated that two months after intervention, 25.2% (28/111) of these subjects had successfully improved their PPE use. At baseline, 79% (311/392) of farmers reported poor use of respiratory protection, with 27.3% (41/150) showing improvement in PPE use within the same time. Strategies to reduce noise hazards were identified by 92.8% (194/209) of hearing screening attendees; 13.2% (18/136) successfully reduced or removed exposure. These values for dust screening attendees were 98.2% (385/392) and 30.7% (54/176), respectively. Use of this intervention appears to be an effective method for increasing PPE use on the farm. However, it is not effective for reducing noise hazards.

Personal Protective Equipment

Baseline (sea)

Hearing protection

10.13031/2013.22312

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Citations (16)

Hearing Conservation for Farmers: Source Apportionment of Occupational and Environmental Factors Contributing to Hearing Loss

Journal of Occupational and Environmental Medicine (2000)

William S. Beckett Diane Chamberlain Eric M. Hallman John J. May Syni‐An Hwang

Those who work on farms continue to have a strikingly high prevalence of hearing loss, despite efforts to promote hearing conservation in agriculture. To develop improved hearing conservation programs, we performed a source apportionment analysis for hearing loss in a large, multiphasic health survey, the New York Farm Family Health and Hazard Survey. We used information from audiometric, otoscopic, and tympanometric examinations; detailed general health and farm exposure interviews; and a second interview that focused on additional potential determinants of hearing loss. Hearing loss on audiometry was significantly associated with increased age, male gender, education through high school or less, lifetime years of hunting with guns, lifetime years of use of a grain dryer, and a history of spraying crops during the previous year. Hearing conservation programs for farmers should thus be directed toward reduction in noise exposure, both from occupational and non-occupational sources. Additional study is needed to evaluate the association seen between crop spraying and hearing loss.

Apportionment

10.1097/00043764-200008000-00008

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Citations (84)