Circadian rhythms in several species can be phase-shifted by procedures that stimulate locomotor activity ("exercise") during the usual sleep period. The role of arousal or sleep loss, independent of activity, in this effect has not been adequately resolved. We show here, using the sleep deprivation procedure of gentle handling, that comparably large phase shifts (up to 240 min advances) of the...

this study aims at using a deductive reasoning to extract several hypotheses from patriarchy, subordination, alienation and perceived relative deprivation theories to establish an empirical association between patriarchy as an independent variable and perceived relative deprivation and alienation of women as a dependent variable. specifically, the study attempts to answer the question: does pat...

Several well-defined sleep regulatory substances, e.g., interleukin-1β, activate the heterodimeric transcription factor nuclear factor-κB (NF-κB). Several substances that inhibit sleep, e.g., interleukin-4, inhibit NF-κB activation. NF-κB activation promotes production of several additional substances thought to be involved in sleep regulation, e.g., nitric oxide. We investigated, therefore, wh...

The role of the modulation of the pineal gland function in development of cancer is discussed in the review. An inhibition of the pineal function with pinealectomy or with the exposure to the constant light regimen stimulates mammary carcinogenesis, whereas the light deprivation inhibits the carcinogenesis. Epidemiological observations on increased risk of breast cancer in night shift workers, ...

The role of social-emotional competence in sustaining teachers’ professional development has been increasingly gaining prominence. Using Bronfenbrenner’s ecological systems theory, this study attempted to explore the deep internal mechanisms influence university climate on student context China. A cluster sampling method was used conduct a questionnaire survey 1776 teachers from 20 universities...

BACKGROUND Despite a concerted policy effort in Europe, social inequalities in health are a persistent problem. Developing a standardised measure of socioeconomic level across Europe will improve the understanding of the underlying mechanisms and causes of inequalities. This will facilitate developing, implementing and assessing new and more effective policies, and will improve the comparabilit...

\\.hereas sensory input and reflex discharge are constant phenomena in brain, the retina receives its functional stimuli from a specific, controllable source (I). Brattgard (2) has investigated effects of light deprivation on total mass, pentose nucleoprotein, and protein in ganglion cells of rabbit retina. Zetterstrom (3) determined elec%roretinographic responses of kittens grown in total dark...

3 monkeys impaired on delayed response and delayed alternation after midlateral frontal lesions, 3 monkeys unimpaired on these tasks after control lesions, and 3 unoperated monkeys were tested on spatial delayed response (with direct baiting) and spatial delayed alternation following 2, 26, and 50 hr. of food deprivation. Increased deprivation improved delayed response performance by all groups...

background: the present study examined the possible role of endogenous opioidergic system in effect of food deprivation on formalin-induced nociceptive behaviors in male and female rats. also, we investigated the effect of food deprivation on the plasma level of beta-endorphin and sex hormones. methods: food was withdrawn 48 h prior to performing the formalin test, but water continued to be ava...