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https://www.readbyqxmd.com/read/29159835/precarious-schedules-linked-with-workplace-aggression-in-a-high-risk-occupation
#1
David A Hurtado, Lisset M Dumet, Samuel A Greenspan, Miguel Marino, Kimberly Bernard
INTRODUCTION: Night work and prolonged work hours increase the risk for workplace aggression, however, the risk related to precarious schedules remains unknown. METHODS: Cross-sectional study among Parole Probation Officers (PPOs) (n = 35). A precarious schedules index was created including the following indicators (a) experiencing one or more unexpected shifts during the last 4 weeks; (b) having minimal control over work hours; and (c) shifts notifications of less than a week...
November 21, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/29158910/association-between-working-time-quality-and-self-perceived-health-analysis-of-the-3rd-korean-working-conditions-survey-2011
#2
Jaeyoup Jung, Gyuree Kim, Kyusung Kim, Domyung Paek, Sung-Il Cho
Background: Self-perceived health, a subjective assessment of one's health condition, is an important health indicator at the level of quality of life. In this study, working time quality refer to job factors with qualitative aspects of working time. This study was conducted to investigate the association between working time quality and self-perceived health in paid workers in Korea. Methods: In this study, 35,902 paid workers were analyzed based on the 3rd Korean working conditions survey...
2017: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29154305/an-active-transition-from-offshore-work-to-family-life-activities-that-may-impact-recovery
#3
Suzanne L Merkus, Maaike A Huysmans, Kari Anne Holte, Willem van Mechelen, Allard J van der Beek
BACKGROUND: Night shift workers, particularly those working offshore, take a long time to recover from their shifts. The activities that shift workers, such as offshore employees, pursue during their leisure time can influence the process of recovery from work-related fatigue, but little is known about these leisure time activities. OBJECTIVE: To explore what leisure time activities are pursued that may be relevant to recovery for offshore employees. METHODS: Sixty-one offshore working family men-20 night shift, 16 swing shift, and 25 day shift workers-reported on six predefined activities for 14 days following their offshore tours...
2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/29146117/implications-of-disturbances-in-circadian-rhythms-for-cardiovascular-health-a-new-frontier-in-free-radical-biology
#4
REVIEW
Neelam Khaper, Craig D C Bailey, Nilesh R Ghugre, Cristine Reitz, Zikra Awosanmi, Ryan Waines, Tami A Martino
Cell autonomous circadian "clock" mechanisms are present in virtually every organ, and generate daily rhythms that are important for normal physiology. This is especially relevant to the cardiovascular system, for example the circadian mechanism orchestrates rhythms in heart rate, blood pressure, cardiac contractility, metabolism, gene and protein abundance over the 24-hour day and night cycles. Conversely, disturbing circadian rhythms (e.g. via shift work, sleep disorders) increases cardiovascular disease risk, and exacerbates cardiac remodelling and worsens outcome...
November 13, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29145258/shift-work-night-work-and-the-risk-of-prostate-cancer-a-meta-analysis-based-on-9-cohort-studies
#5
Hong-Bing Du, Kai-Yun Bin, Wen-Hong Liu, Feng-Sheng Yang
BACKGROUND: Epidemiology studies suggested that shift work or night work may be linked to prostate cancer (PCa); the relationship, however, remains controversy. METHODS: PubMed, ScienceDirect, and Embase (Ovid) databases were searched before (started from the building of the databases) February 4, 2017 for eligible cohort studies. We pooled the evidence included by a random- or fixed-effect model, according to the heterogeneity. A predefined subgroup analysis was conducted to see the potential discrepancy between groups...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144171/circadian-gene-methylation-in-rotating-shift-nurses-a-cross-sectional-study
#6
Edyta Reszka, Edyta Wieczorek, Monika Przybek, Ewa Jabłońska, Paweł Kałużny, Agnieszka Bukowska-Damska, Shanbeh Zienolddiny, Beata Pepłońska
Investigating the methylation status of the circadian genes may contribute to a better understanding of the shift work-related circadian disruption in individuals exposed to artificial light at night. In the present study, we determined the methylation status of the circadian genes associated with a shift work pattern among nurses and midwives participating in a cross-sectional study in Lodz, Poland. Quantitative methylation polymerase chain reaction assays were used to assess promoter CpG methylation in PER1, PER2, PER3, CRY1, CRY2, BMAL1, CLOCK, and NPAS2 in genomic DNA from whole blood of 347 women having a rotating-shift work schedule and 363 women working days only...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29144169/bright-light-exposure-during-daytime-sleeping-affects-nocturnal-melatonin-secretion-after-simulated-night-work
#7
Shunsuke Nagashima, Madoka Osawa, Hiroto Matsuyama, Wataru Ohoka, Aemi Ahn, Tomoko Wakamura
The guidelines for night and shift workers recommend that after night work, they should sleep in a dark environment during the daytime. However, staying in a dark environment during the daytime reduces nocturnal melatonin secretion and delays its onset. Daytime bright-light exposure after night work is important for melatonin synthesis the subsequent night and for maintaining the circadian rhythms. However, it is not clear whether daytime sleeping after night work should be in a dim- or a bright-light environment for maintaining melatonin secretion...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29144168/the-effects-of-extended-nap-periods-on-cognitive-physiological-and-subjective-responses-under-simulated-night-shift-conditions
#8
Jonathan Davy, Matthias Göbel
Extended nap opportunities have been effective in maintaining alertness in the context of extended night shifts (+12 h). However, there is limited evidence of their efficacy during 8-h shifts. Thus, this study explored the effects of extended naps on cognitive, physiological and perceptual responses during four simulated, 8-h night shifts. In a laboratory setting, 32 participants were allocated to one of three conditions. All participants completed four consecutive, 8-h night shifts, with the arrangements differing by condition...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29138967/mice-lacking-egr1-have-impaired-clock-gene-bmal1-oscillation-locomotor-activity-and-body-temperature
#9
Casper Schwartz Riedel, Birgitte Georg, Henrik L Jørgensen, Jens Hannibal, Jan Fahrenkrug
Early growth response transcription factor 1 (EGR1) is expressed in the suprachiasmatic nucleus (SCN) after light stimulation. We used EGR1-deficient mice to address the role of EGR1 in the clock function and light-induced resetting of the clock. The diurnal rhythms of expression of the clock genes BMAL1 and PER1 in the SCN were evaluated by semi-quantitative in situ hybridization. We found no difference in the expression of PER1 mRNA between wildtype and EGR1-deficient mice; however, the daily rhythm of BMAL1 mRNA was completely abolished in the EGR1-deficient mice...
November 14, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/29129126/chronic-circadian-misalignment-without-circadian-arrhythmicity-or-sleep-deprivation-does-not-impair-adult-hippocampal-neurogenesis
#10
Phan Q Duy, Samer Hattar
Artificial light in modern society has led to the ubiquity of light exposure at night as individuals work night shifts and use light-emitting electronic devices before bedtime. These aberrant light conditions have detrimental consequences on cognitive and mental health, compelling the need to understand the mechanisms by which light affects brain functions. Although it was believed that aberrant light impairs health by first disrupting circadian rhythms and sleep, we showed that chronic exposure to a light cycle termed T7 (3...
November 1, 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/29128210/short-communication-the-effects-of-morning-compared-with-evening-feed-delivery-in-lactating-dairy-cows-during-the-summer
#11
M Niu, K J Harvatine
Delivering fresh feed in the evening is a management strategy sometimes used during periods of heat stress, but previous experiments have observed that night feeding increased feed intake during the 2 h after feeding and did not change intake during the overnight period. The objective of this study was to determine the effect of night feeding on daily rhythms of the dairy cow during the summer season. Twelve Holstein cows were used in a crossover design with 14-d periods. An automated system recorded the timing of feed intake over the last 7 d of each period...
November 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29126462/prediction-of-drowsiness-events-in-night-shift-workers-during-morning-driving
#12
Yulan Liang, William J Horrey, Mark E Howard, Michael L Lee, Clare Anderson, Michael S Shreeve, Conor S O'Brien, Charles A Czeisler
The morning commute home is an especially vulnerable time for workers engaged in night shift work due to the heightened risk of experiencing drowsy driving. One strategy to manage this risk is to monitor the driver's state in real time using an in vehicle monitoring system and to alert drivers when they are becoming sleepy. The primary objective of this study is to build and evaluate predictive models for drowsiness events occurring in morning drives using a variety of physiological and performance data gathered under a real driving scenario...
November 7, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/29106308/sleep-quality-and-methylation-status-of-core-circadian-rhythm-genes-among-nurses-and-midwives
#13
Agnieszka Bukowska-Damska, Edyta Reszka, Pawel Kaluzny, Edyta Wieczorek, Monika Przybek, Shanbeh Zienolddiny, Beata Peplonska
ABSTARCT Poor sleep quality or sleep restriction is associated with sleepiness and concentration problems. Moreover, chronic sleep restriction may affect metabolism, hormone secretion patterns and inflammatory responses. Limited recent reports suggest a potential link between sleep deprivation and epigenetic effects such as changes in DNA methylation profiles. The aim of the present study was to assess the potential association between poor sleep quality or sleep duration and the levels of 5-methylcytosine in the promoter regions of PER1, PER2, PER3, BMAL1, CLOCK, CRY1 CRY2 and NPAS2 genes, taking into account rotating night work and chronotype as potential confounders or modifiers...
November 6, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29094691/night-shifts-circadian-biology-for-public-health
#14
Charleen Adams, Erika Blacker, Wylie Burke
No abstract text is available yet for this article.
November 1, 2017: Nature
https://www.readbyqxmd.com/read/29090319/-thedress-categorical-perception-of-an-ambiguous-color-image
#15
Rosa Lafer-Sousa, Bevil R Conway
We present a full analysis of data from our preliminary report (Lafer-Sousa, Hermann, & Conway, 2015) and test whether #TheDress image is multistable. A multistable image must give rise to more than one mutually exclusive percept, typically within single individuals. Clustering algorithms of color-matching data showed that the dress was seen categorically, as white/gold (W/G) or blue/black (B/K), with a blue/brown transition state. Multinomial regression predicted categorical labels. Consistent with our prior hypothesis, W/G observers inferred a cool illuminant, whereas B/K observers inferred a warm illuminant; moreover, subjects could use skin color alone to infer the illuminant...
October 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/29081124/-a-survey-of-sleep-quality-of-employed-nurses-in-military-hospitals
#16
Z Y Cui, L Li, Y Wang, H Chao, Z Huang
Objective: To investigate the sleep quality of the employed nurses in three grade A tertiary military hospitals in Beijing, China and its influential factors and to provide a reference for improving the sleep quality of employed nurses. Methods: From January 2014 to January 2017, a questionnaire survey was carried out to investigate the sleep quality of 253 employed nurses in three grade A tertiary military hospitals in Beijing, China using the Pittsburgh Sleep Quality Index (PSQI) and a general status questionnaire...
August 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29081121/-reproductive-health-status-of-female-workers-in-a-railway-system-and-possible-influencing-factors
#17
H H Li, W L Yu, S W Huang, H J Qin, Q D Lu
Objective: To investigate the reproductive health status of female workers in a railway system and possible influencing factors. Methods: From January to June, 2016, a cross-sectional epidemiological investigation was performed to collect 2 165 female workers aged 17-55 years. A women's health questionnaire was used to collect the data on their occupation and health, and their reproductive health status was analyzed. Results: The female workers exposed to occupational hazards had significantly higher incidence rates of gynecological diseases, abnormal menstruation, and infertility than those not exposed to such hazards (χ(2)=32...
August 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29080950/is-poor-sleep-associated-with-obesity-in-older-adults-a-narrative-review-of-the-literature
#18
Maria C Norton, Stefano Eleuteri, Silvia Cerolini, Andrea Ballesio, Salvatore C Conte, Paolo Falaschi, Fabio Lucidi
INTRODUCTION: To address the worldwide epidemic of obesity, a sizable literature implicates sleep problems in the onset of obesity in younger populations. However, less is known about how this process may operate among older adults, which is of concern, given demographic shifts that have resulted in a much higher proportion of developed nations around the world reaching late life. METHODS: We offer a current review of the literature studying older adults and examining associations between sleep quality and obesity in this population...
October 28, 2017: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/29073827/needlestick-and-sharps-injuries-among-nursing-students-in-nanjing-china
#19
Xujun Zhang, Yu Chen, Yang Li, Jie Hu, Cong Zhang, Zhen Li, Lorann Stallones, Henry Xiang
Needlestick and sharps injuries (NSIs) are a major cause of occupational injuries for health care workers worldwide. In this study, the authors report the prevalence of and risk factors for NSIs among Chinese nursing students. A cross-sectional survey was distributed to 442 nursing students; 393 completed questionnaires were submitted. A total of 237 (60.3%) nursing students reported NSIs, which were more commonly reported by female students, younger students, students who worked frequent night shifts, students without safety training, and students who did not use personal protective equipment...
October 1, 2017: Workplace Health & Safety
https://www.readbyqxmd.com/read/29073823/mechanical-restraint-and-characteristics-of-patient-staff-and-shifts-in-a-psychiatric-ward
#20
Johanne Sofie Kodal, Jesper Nørgaard Kjær, Erik Roj Larsen
BACKGROUND: The use of coercion is a balance between depriving the patients' autonomy and dignity and preventing endangerment of the body or health of self or others. It is of importance to obtain more knowledge about mechanisms leading to mechanical restraint in the attempt of reducing it. OBJECTIVE: To analyse for associations between incidence of mechanical restraint (MR) and staffing level, staff demographics, patient characteristics, type of shift (day/evening/night) and change of shifts...
October 26, 2017: Nordic Journal of Psychiatry
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