The time-of-day that breaks occur between consecutive duty periods affects the sleep strategies used by shiftworkers.

abstract：:Daily schedules of many organisms, including birds, are thought to affect fitness. Timing in birds is based on circadian clocks that have a heritable period length, but fitness consequences for individuals in natural environments depend on the scheduling of entrained clocks. This chronotype, i.e., timing of an individ...

journal_title：Chronobiology international

authors： Lehmann M,Spoelstra K,Visser ME,Helm B

更新日期：2012-10-01 00:00:00

abstract：:Career decisions are based on the fit between an individual and his/her environment. This study explores the effect of person-environment fit regarding actual and preferred weekly working hours on early and late retirement intentions in a sample of 7,859 employees aged 50 to 65 years of age living in Germany. Findings...

journal_title：Chronobiology international

authors： Wöhrmann AM,Brauner C,Michel A

更新日期：2020-08-24 00:00:00

abstract：:The first aim of the study was to assess clock-time patterning of work-related injuries (WRIs) of firemen (FM) of Saône et Loire-71 (France) during the 4-yr span of 1 January 2004 to 31 December 2007. FM of this service are legally required to log every WRI and seek its evaluation by the medical service, whether the W...

journal_title：Chronobiology international

authors： Riedel M,Berrez S,Pelisse D,Brousse E,Forget C,Marlot M,Smolensky MH,Touitou Y,Reinberg A

更新日期：2011-10-01 00:00:00

abstract：:The effect of altitude on four basic properties of the pacemaker controlling the circadian rhythm of oviposition in two strains of Drosophila ananassae was determined. The high altitude (HA) strain from Badrinath (5123 m above sea level) had a low amplitude peak in the forenoon while the low altitude (LA) strain from ...

journal_title：Chronobiology international

authors： Khare PV,Satralkar MK,Vanlalnghaka C,Keny VL,Kasture MS,Shivagaje AJ,Barnabas RJ,Joshi DS

更新日期：2005-01-01 00:00:00

abstract：:Time-dependent variations in the vasodilator effects of beta-adrenergic agonists terbutaline (Ter) and dobutamine (Dob) were studied in isolated rings of rat thoracic aorta in both endothelium-intact and endothelium-denuded preparations. Rats were housed in light from 08:00 to 20:00 and in darkness from 20:00 to 08:00...

journal_title：Chronobiology international

authors： Güney HZ,Hodoğlugil U,Uluoğlu C,Görgün CZ,Ercan ZS,Abacioğlu N,Zengil H

更新日期：1998-03-01 00:00:00

abstract：:The aim of this study was to carry out a comparison of the ability to discriminate between extreme chronotypes, i.e., morning- and evening-types, among the Morningness-Eveningness Questionnaire (MEQ) and its reduced version (rMEQ). To this end a secondary analysis of cohort studies, using two different approaches, was...

journal_title：Chronobiology international

authors： Tonetti L,Natale V

更新日期：2019-02-01 00:00:00

abstract：:Facebook has become the most popular social networking site round the world. In seeking an explanation for this phenomenon, individual differences in circadian functioning seem to be an interesting issue. The main aim of this study was to examine the potential associations between morningness/eveningness and Facebook ...

journal_title：Chronobiology international

authors： Blachnio A,Przepiorka A,Díaz-Morales JF

更新日期：2015-01-01 00:00:00

abstract：:The pineal hormone melatonin is potentially useful in the treatment of disorders, especially sleep disorders, associated with circadian rhythm disturbance. We have examined its effects on sleep, mood, and behaviour in a double-blind, placebo-controlled study of a small group of police officers working spans of seven s...

journal_title：Chronobiology international

authors： Folkard S,Arendt J,Clark M

更新日期：1993-10-01 00:00:00

abstract：:The circadian clock and the hypoxic signaling pathway play critical roles in physiological homeostasis as well as in tumorgenesis. Interactions between both pathways have repeatedly been reported for mammals during the last decade, the molecular basis, though, has not been identified so far. Expression levels of oxyge...

journal_title：Chronobiology international

authors： Egg M,Köblitz L,Hirayama J,Schwerte T,Folterbauer C,Kurz A,Fiechtner B,Möst M,Salvenmoser W,Sassone-Corsi P,Pelster B

更新日期：2013-05-01 00:00:00

abstract：:The increased prevalence of circadian disruptions due to abnormal coupling between internal and external time makes the detection of circadian phase in humans by ambulatory recordings a compelling need. Here, we propose an accurate practical procedure to estimate circadian phase with the least possible burden for the ...

journal_title：Chronobiology international

authors： Bonmati-Carrion MA,Middleton B,Revell V,Skene DJ,Rol MA,Madrid JA

更新日期：2014-02-01 00:00:00

abstract：:Ninety-five nonresident girls of a private school volunteered for the study with the teachers' help as well as parental consent. Ages were approximately 8, 9, and 10 years. They were synchronized with diurnal activity from 0730 to 2100 h and nocturnal rest. Fatigue, drowsiness, and attention were self-rated using visu...

journal_title：Chronobiology international

authors： Guérin N,Boulenguiez S,Reinberg A,Di Costanzo G,Guran P,Touitou Y

更新日期：1991-01-01 00:00:00

abstract：:Several substances change the period length of the circadian oscillator in the laminar pulvinus of Phaseolus coccineus L. if offered continuously via the transpiration stream to the isolated leaves in continuous light and constant temperature. The osmotica mannitol and PEG 6000 (polyethylene glycol) lengthen the circa...

journal_title：Chronobiology international

authors： Mayer WE,Maier M,Flach D

更新日期：1985-01-01 00:00:00

abstract：:Chronotypes have been associated with psychopathology. The eveningness chronotype has been consistently linked with depressed states or depressive disorder, but the underlying mechanism remains unclear. Prior studies have shown associations between chronotype and personality traits that are linked to depression (e.g. ...

journal_title：Chronobiology international

authors： Antypa N,Verkuil B,Molendijk M,Schoevers R,Penninx BWJH,Van Der Does W

更新日期：2017-01-01 00:00:00

abstract：:Background: Numerous clinical studies have evaluated valsartan and found more efficacious control of blood pressure (BP) variability when administered before sleep. The treatment leads to improved outcomes when compared to administration upon awakening. The mechanism underlying this etiology is not fully understood. T...

journal_title：Chronobiology international

authors： Yang K,Wang Y,Ding Y,Cui H,Zhou D,Chen L,Ma Z,Wang W,Zhang W,Luan J

更新日期：2019-08-01 00:00:00

abstract：:The present study was designed to investigate the effect of Ramadan fasting on feelings, dietary intake, rating of perceived exertion (RPE) and repeated high-intensity short-term maximal performance. Thirteen physically active men (age: 21.2 ± 2.9 years, height: 175.6 ± 5.6 cm, body-mass: 72.4 ± 8.6 kg) performed a 5-...

journal_title：Chronobiology international

authors： Boukhris O,Hsouna H,Chtourou L,Abdesalem R,BenSalem S,Tahri N,Trabelsi K,Stannard SR,Chtourou H

更新日期：2019-01-01 00:00:00

abstract：:The circalunidian-clock hypothesis is a formulation describing the means by which the tide-associated rhythms of intertidal organisms are generated. The postulate was described in a 1995 article in this journal (12:299-310). A recent paper published here (13:153-62) by Prof. Ernest Naylor challenges the validity of th...

journal_title：Chronobiology international

authors： Palmer JD

更新日期：1997-07-01 00:00:00

abstract：:Chronic sympathetic denervation of the pineal gland by bilateral removal of the superior cervical ganglia (SCG) was performed on female rats 30 days before impregnation. The offspring, maintained in the dark from birth, had disruption of the malate dehydrogenase circadian rhythm in the testes at 25 days of age. A dail...

journal_title：Chronobiology international

authors： Vermouth NT,Carriazo CS,Gallará RV,Carpentieri AR,Bellavía SL

更新日期：1995-02-01 00:00:00

abstract：:Therapy with oral anticoagulants (OACs) is a risk factor for cerebral hemorrhage (CH). Although different studies have been undertaken to investigate the timing of the onset of major cardiovascular events, no data exist on temporal patterns of the onset of CH in subjects treated with OACs. The aim of this study is to ...

journal_title：Chronobiology international

authors： Fabbian F,Manfredini R,De Giorgi A,Gallerani M,Cavazza M,Grifoni S,Fabbri A,Cervellin G,Ferrari AM,Imberti D,PROMPT Registry Investigators.

更新日期：2016-01-01 00:00:00

abstract：:This study aims to investigate independent associations of habitual sleep durations and sleep timings on weekdays and weekends with depressive symptoms in adolescents who have classes in the morning. We studied grade 7-9 students (942 males and 940 females, aged 12-15 years), who had classes in the morning, at public ...

journal_title：Chronobiology international

authors： Ojio Y,Kishi A,Sasaki T,Togo F

更新日期：2020-06-01 00:00:00

abstract：:Two different experimental models were used to test if a temporal relationship exists between the rhythm of adrenal steroid secretion and the vulnerability of the hamster reproductive system to short photoperiod exposure or to the daily afternoon injection of melatonin. In the first experiment adrenalectomized hamster...

journal_title：Chronobiology international

authors： Joshi BN,Vaughan MK,Nürnberger F,Reiter RJ

更新日期：1985-01-01 00:00:00

abstract：:Intolerance to shift work may result from individual susceptibility to an internal desynchronization. Some shift workers (SW) who show desynchronization of their circadian rhythms (e.g., sleep-wake, body temperature, and grip strength of both hands) exhibit symptoms of SW intolerance, such as sleep alteration, persist...

journal_title：Chronobiology international

authors： Reinberg A,Ashkenazi I

更新日期：2008-07-01 00:00:00

abstract：:Four healthy non obese young volunteers were observed for a 24-hr period, every other month, over the course of one year. Tolbutamide was injected i.v. each day of the experiment every four hours. Tolbutamide-induced insulin secretion (T.I.I.S.) was evaluated by planimetrically measuring insulin areas above basal leve...

journal_title：Chronobiology international

authors： Del Ponte A,Guagnano MT,Sensi S

更新日期：1984-01-01 00:00:00

abstract：:The validity of a commercially available wearable device for measuring total sleep time was examined in a sample of well-trained young athletes during night-time sleep periods and daytime naps. Participants wore a FitBit HR Charge on their non-dominant wrist and had electrodes attached to their face and scalp to enabl...

journal_title：Chronobiology international

authors： Sargent C,Lastella M,Romyn G,Versey N,Miller DJ,Roach GD

更新日期：2018-06-01 00:00:00

abstract：:Intense artificial light can phase-shift circadian rhythms and improve performance, sleep, and well-being during shiftwork simulations. In real shiftworkers, however, exposure to sunlight and other time cues may decrease the efficacy of light treatment, and occupational and family responsibilities may make it impracti...

journal_title：Chronobiology international

authors： Stewart KT,Hayes BC,Eastman CI

更新日期：1995-04-01 00:00:00

abstract：:A physiological dose of orally administered melatonin shifts circadian rhythms in humans according to a phase-response curve (PRC) that is nearly opposite in phase with the PRCs for light exposure: melatonin delays circadian rhythms when administered in the morning and advances them when administered in the afternoon ...

journal_title：Chronobiology international

authors： Lewy AJ,Ahmed S,Jackson JM,Sack RL

更新日期：1992-10-01 00:00:00

abstract：:There is strong association between chronic kidney disease (CKD) and increased prevalence of hypertension, risk of end-organ damage, and cardiovascular disease (CVD). Non-dipping, as determined by ambulatory blood pressure (BP) monitoring (ABPM), is frequent in CKD and has also been consistently associated with increa...

journal_title：Chronobiology international

authors： Mojón A,Ayala DE,Piñeiro L,Otero A,Crespo JJ,Moyá A,Bóveda J,de Lis JP,Fernández JR,Hermida RC,Hygia Project Investigators.

更新日期：2013-03-01 00:00:00

abstract：:Seasonal Affective Disorder (SAD) is a condition of regularly occurring depressions in winter with a remission the following spring or summer. In addition to depressed mood, the patients tend to experience increased appetite and an increased duration of sleep during the winter. SAD is a relatively common condition, af...

journal_title：Chronobiology international

authors： Magnusson A,Boivin D

更新日期：2003-03-01 00:00:00

abstract：:Twenty-two depressed subjects who met criteria for major depressive disorder were grouped according to their initial REM latency. Subjects with short (less than or equal to 60 min) initial REM latency were separated from those with normal (greater than 60 min) initial REM latency. Subjects with short initial REM laten...

journal_title：Chronobiology international

authors： Zammit GK,Pollak C,Rosenbaum AH,Roth T

更新日期：1990-01-01 00:00:00

abstract：:Previous studies have demonstrated seasonal variation in the incidence of acute myocardial infarction (AMI) with an increase in cases during the winter months. However, they did not assess whether ST-elevation MI (STEMI) and non-ST-elevation MI (NSTEMI) exhibit similar changes. The object of this study was to compare ...

journal_title：Chronobiology international

authors： Leibowitz D,Planer D,Weiss T,Rott D

更新日期：2007-01-01 00:00:00

abstract：:The circadian system is organized in a hierarchy of multiple oscillators, with the suprachiasmatic nucleus (SCN) as the master oscillator in mammals. The SCN is formed by a group of coupled cell oscillators. Knowledge of this coupling mechanism is essential to understanding entrainment and the expression of circadian ...

journal_title：Chronobiology international

authors： Silva CA,Melo LIM,Pires AR,Barbalho JC,Melo AV,Fernandes DAC,Oliveira EB,Azevedo CVM,Cambras T,Díez-Noguera A,Fontenele-Araujo J

更新日期：2018-01-01 00:00:00