OBJECTIVE To test the hypotheses that sleep deprivation in neurology residents is associated with performance deficits and that vigilance and cognitive performance is more compromised after overnight on-call duty compared to night shift. METHODS Thirty-eight neurology residents of a university teaching hospital participated in a prospective single-blind comparison study. Residents were recrui...

A large-arena bioassay is used to examine sex differences in spatiotemporal patterns of bed bug Cimex lectularius L. behavioural responses to either a human host or CO2 gas. After release in the centre of the arena, 90% of newly-fed bed bugs move to hiding places in the corners within 24 h. They require 3 days to settle down completely in the arena, with generally low activity levels and the ab...

ABSTRACT Objectives: to compare the parameters of activity/rest cycle early postpartum breastfeeding women under a controlled and uncontrolled long wavelength ray light regimen. Methods: quasi-experimental study with their babies during postnatal rooming-in, São Paulo, Brazil. Participants were allocated either an experimental (intervention) or comparison group. The intervention involved exposu...

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Background: spacecrafts rotate around the Earth every 90 minutes, so the 24-hour cycle turns to 90 minutes. Retinoic acid, an active metabolite of vitamin A, plays a role in regulating the circadian rhythm and its deficiency can impair the biological clock function and consequently impair the circadian rhythm of locomotor activity. The goal of the study was to assay the effects of simulated spa...

Parents of young infants are faced with a number of adjustments and challenges. In particular, during the first few weeks or months following birth, infants require feeding at regular intervals throughout the day and night. Infants signal their need to be fed by crying, and thus the nighttime sleep of parents is frequently disrupted by the cry signal and the need to awaken to feed the infant, c...

Napping at night may benefit both health professionals and their patients elivering medical care is a 24-hour business that inevitably involves working the night shift. However, night shift requires the health professional to work when the body' s clock (circadian system) demands sleep. Added to this is the problem of " sleep debt " , arising from both prolonged prior wakefulness on the first n...

People requiring palliative care should have their needs met by services acting in accordance with wishes. A hospice the south of England provides such via a 24/7 at home service. This study aimed to establish how nurse-led night service supported patients and family carers remain avoid hospital admissions. Semi-structured interviews were carried out (n=38) hospice-at-home staff (n=9). Through ...

Aims To study loop diuretic response and effect of omission in ambulatory heart failure (HF) patients on chronic low-dose diuretics. Methods results Urine collections were performed two consecutive days 40 HF with 40–80 mg furosemide (day 1 diuretic; day 2 without diuretic). Three phases collected each day: (i) first 6 h; (ii) rest the day; (iii) night. On intake, total natriuresis was 125.9 (8...