Isothermal heat flux sensing unit Final report, Jun. 21, 1967 - Jan. 2, 1968

Thermal analysis, theory of operation, and operating instructions for isothermal heat flux sensing uni

EFFECTS OF SHIFT WORK ON CARDIOVASCULAR ACTIVITY, SERUM CORTISOL AND WHITE BLOOD CELLS COUNT IN A GROUP OF ITALIAN FISHERMEN

We analyzed the effects of working activity and working shifts on the circadian rhythmicity and circadian phase relations of serum cortisol level, white blood cells count, resting heart rate and systolic/diastolic blood pressure in a group of italian fishermen. We observed a shift-induced displacement of cortisol secretion and a modification in leukocyte count. Moreover, systolic/diastolic blood pressure and resting heart rate were markedly influenced by the night shift, whereas no appreciable changes were observed after the morning and afternoon shifts, compared to pre-working values. These data suggest that the human circadian system is greatly influenced by shift work, and serum cortisol level, leukocyte count, systolic and diastolic blood pressure, and resting heart rate are sensitive indicators of the biological responses to a stress workload in shift workers, especially after a night shif

Stroke after tadalafil use

No abstract availabl

EFFECTS OF SHIFT WORK ON CARDIOVASCULAR ACTIVITY, SERUM CORTISOL AND WHITE BLOOD CELLS COUNT IN A GROUP OF ITALIAN FISHERMEN

We analyzed the effects of working activity and working shifts on the circadian rhythmicity and circadian phase relations of serum cortisol level, white blood cells count, resting heart rate and systolic/diastolic blood pressure in a group of italian fishermen. We observed a shift-induced displacement of cortisol secretion and a modification in leukocyte count. Moreover, systolic/diastolic blood pressure and resting heart rate were markedly influenced by the night shift, whereas no appreciable changes were observed after the morning and afternoon shifts, compared to pre-working values. These data suggest that the human circadian system is greatly influenced by shift work, and serum cortisol level, leukocyte count, systolic and diastolic blood pressure, and resting heart rate are sensitive indicators of the biological responses to a stress workload in shift workers, especially after a night shif

POST-TRAUMATIC STRESS DISORDER: A FREQUENT WORK-RELATED ILLNESS

Post-traumatic stress disorder (PTSD) is an anxiety disorder that results from exposure to a traumatic event, and is characterized by hypermnesia of the traumatic event with frequent re-experiencing of the tragic occurrence, hyperarousal, and avoidance behaviour. Depression, anxiety, sleep dysfunction and substance abuse are also commonly reported. PTSD is highly prevalent both in the general population and in certain occupations that are particularly exposed to life-threatening situations, physically and psychological demanding activities, and physical assault, such as rescue workers, firefighters and paramedics. Recent advances in the comprehension of the epidemiology, physiopathology and clinical presentation of PTSD could push toward increased identification of this common psychiatric disorder with significant reflections on the chances of successful treatmen

Nonlinear modelling of the seismic response of masonry structures: Calibration strategies

In this paper, a simple and practitioners-friendly calibration strategy to consistently link target panel-scale mechanical properties (that can be found in national standards) to model material-scale mechanical properties is presented. Simple masonry panel geometries, with various boundary conditions, are utilized to test numerical models and calibrate their mechanical properties. The calibration is successfully conducted through five different numerical models (most of them available in commercial software packages) suitable for nonlinear modelling of masonry structures, using nonlinear static analyses. Firstly, the panel stiffness calibration is performed, focusing the attention to the shear stiffness. Secondly, the panel strength calibration is conducted for several axial load ratios by attempts using as reference the target panel strength deduced by well-known analytical strength criteria. The results in terms of panel strength for the five different models show that this calibration strategy appears effective in obtaining model properties coherent with Italian National Standard and Eurocode. Open issues remain for the calibration of the post-peak response of masonry panels, which still appears highly conventional in the standards