1,514 research outputs found
Disturbi del sonno e sonnolenza diurna in una popolazione di turnisti della Polizia di Stato
No full textShift-work seniority increases the importance of sleep disorders. A comparison between different shift-working categories
No full textShift-work disrupts the sleep-wake cycle and could bring about sleep disorders and excessive daytime sleepiness. We studied two samples of shift-workers, a group of 178 nurses and one of 174 police officers, all working in the town of Palermo (Italy); their answers to a sleep disorder questionnaire were scored and added in order to create a Sleep Disorder Score (SDS). The SDS cut-off value, discrimining pathological values from physiological ones, was settled a-priori. In both groups SDS did not depend on sex, age, weight, height nor on working seniority, but it increased non linearly (cubic form) with shift-work seniority. In nurses this mathematical description of SDS exceeded the cut-off value after 15 years of shift-work seniority; in police officers it settled asymptotically under the critical value. This could be ascribable both to the different composition in sex of the two samples (nurses: 49% F-51% M vs. police officers: 6% F-94% M) both to the self-selection process that seems to undergo police officers (nurses do not leave shift-work because of salary incentives
EFFECTS OF ACUTE INTRAVENOUS ADMINISTRATION OF MET-ENKEPHALIN IN THE RABBIT: A COMPUTER ANALYSIS.
No full textRepigmentation of White Forelock in a Familial Case of Piebaldism Reported via Teledermatology in the COVID-19 Era
No full textPiebaldism is a rare autosomal dominant disorder characterized by leucoderma with leucotrichia. We describe a case of white forelock repigmentation in an infant with piebaldism, thanks to a photograph sent by the patient's mother to our dermatology clinic, during COVID-19 pandemic
Skeletal maturation evaluation: which is the reliability of dental calcification Demirjian method versus hand-wrist X-ray in growing subjects? A systematic review
No full textObjectives: This systematic review aimed at evaluating the reliability of dental maturation (DM) according to Demirjian method compared to hand and wrist maturation (HWM) to assess skeletal maturity (SM) in growing subjects, to identify the teeth and the corresponding mineralisation stages related to the pubertal growth spurt (PGS). Materials and Methods: PubMed, Scopus, and Web of Science were systematically searched until January 5th, 2024, to identify observational cross-sectional studies that assessed the reliability of Demirjian method compared to the HWM methods (i.e., Grave and Brown and Fishman) in growing subjects. The quality assessment was evaluated using the Joanna Briggs Institute (JBI) Critical Appraisal Checklist. Results: Out of 136 papers suitable for title/abstract screening, 19 included studies. Of them, 17 papers showed the reliability of Demirjian DM method compared to HWM Fishman and Grave and Brown methods to assess SM in growing subjects. According to JBI Critical Appraisal Checklist, 12 papers were high-quality studies and 7 papers were medium-quality studies. Conclusions: The mandibular second molar might be considered as the best indicator compared to other teeth and that the peak of growth occurs no earlier than stage F in females and stage G in males according to Demirjian method. Also, the mandibular canine might be analysed as indicator of SM in males, and results suggest that the peak of growth occurs no earlier than maturation stage F according to Demirjian method, only in male subjects. Further studies are needed to confirm these findings
Sleep disorders and day sleepiness in a population of shift workers of the State Police
No full textPolicemen are workers exposed to risk from both shiftwork and delicate tasks. This study aims to investigate sleep habits, prevalence of sleep disturbance, sleepiness and hypnotic drug intake in the whole population of Italian State Policemen working in the Genoa district. Italian literature is completely lacking of such data. The study has been carried out by means self administered and assisted questionnaires. Eighty-five percent of the population accepted and answered the questionnaire. Here we focus on the differences between 540 not-shiftworkers, NS, (413 males, 127 females), and 575 shiftworkers, S, (483 males, 92 females). A higher prevalence of difficulties in falling asleep, sleep-latency longer than 20 min. and early awakenings was found in S. No significative differences in daytime sleepiness and drug intake were found between the two groups. Concerning the self-evaluation of the numbers of hours slept during the night and during the 24 hours a higher quantity of sleep was reported by S. CONCLUSIONS: Data seem to indicate a low quality of sleep in S without any evidence of increased daytime sleepiness or increased hypnotic drugs assumption. Shiftworkers seem to compensate their poor quality of sleep with a greater amount of time spent sleeping in the 24 hour period. Such a condition could be the expression of a prolonged recovery from the shift effects
An integrated model of sleep regulation.
No full textWe present a new model of sleep regulation which integrates the two process model and the limit cycle reciprocal interaction model. In the two process model the interaction of a homeostatic process (S signal) and of a circadian process determines the timing of sleep and waking. In the limit cycle model, the NREM-REM sleep cycle is generated by the reciprocal interaction of two coupled cell population. The present model integrates the two considered models introducing the trigger REM-NREM generated by the REM-ON signal and activated when REM-ON overcomes the S signal
Corrispondenza tra analisi spettrale e analisi microstrutturale con cyclic alternating pattern
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