Circadian and seasonal variations were observed in the karyometric index of pinealocytes in the cortical and medullary regions of the distal pineal body. The study involved 70 Wistar rats over a 24-hour interval (0:6, 10:00, 14:00, 18:00, 22:00, 02:00, 06:00 h) during two natural photoluminous periods, i.e. late summer (Long photoperiod) and Winter (Short photoperiod). The results show a differ...

Circadian variation in susceptibility to the ambulation-increasing effect of scopolamine in mice was investigated. The mice housed under a 12-hr light-dark situation (light period: 6:00-18:00 and dark period: 18:00-6:00) for 5 weeks were administered scopolamine HBr at 0.5 or 2 mg/kg s.c. at one of six times of the day (3:00, 7:00, 11:00, 15:00, 19:00 and 23:00), and the ambulatory activity was...

Circadian rhythm of seizure is underestimated in the study of focal epilepsies. A review of the current literature revealed a clear correlation between cortical epileptogenic focus and the circadian phase of seizure peak occurrence in adult patients. A single diurnal peak at 19:00 was found in seizures originating from the occipital lobe, between 5:00 and 7:00 in frontal lobe seizures, and betw...

Fish hatcheries must adapt larval feeding protocols to feeding behavior and metabolism patterns to obtain more efficient feed utilization. Fish larvae exhibit daily ingesting rhythms rather than ingesting food continuously throughout the day. The aim of this study was to determine the daily patterns of feed intake, protein digestibility, protein retention and catabolism in Senegalese sole post-...

The study examined how nap length, nap timing and sleep quality affect early morning performance (6:00 to 8:00). Twelve students participated in a simulated nightshift schedule (22:00 to 8:00) where the length and timing of nocturnal naps were manipulated (0:00-1:00, 0:00-2:00, 4:00-5:00 and 4:00-6:00). A performance test battery was administered consisting of a psychomotor vigilance test, a lo...

SETTING Implementation of novel diagnostic assays in tuberculosis (TB) laboratory diagnosis requires effective management of time and resources. OBJECTIVE To further develop and assess at multiple centres a time-and-motion (T&M) tool as an objective means for recording the actual time spent on running laboratory assays. DESIGN Multicentre prospective study conducted in six European Union (E...

Abstract The flight behavior of honey bee Apis cerana is influenced by environmental conditions. observation the number bees flying in and out from hives needed to detect Colony Collapse Disorder (CCD) phenomena. In this research, we build a prototype an automatic monitoring system based on image processing. This instrument intended automatically monitor count activities A. forager bees. detect...

Urban road traffic safety has always been vital in transportation research. This paper analyzed the factors influencing degree of accident casualties on Jinan Jingshi Road and its branch roads, taking them as study area for urban problems. Additionally, it used application Particle Swarm Optimization (PSO), a Support Vector Machine (SVM) model, recursive feature elimination (RFE) to rank contri...