Search results for "termit"
showing 10 items of 220 documents
Obstructive sleep apnea and cancer: a complex relationship
2020
Purpose of review Obstructive sleep apnea (OSA) has been recognized as a risk factor for cancer mainly through hypoxia, based on studies that did not distinguish among cancer types. The purpose of this review is to discuss the most recent data on epidemiology and pathophysiology of the OSA-cancer association. Recent findings According to epidemiological studies, OSA may have different influences on each type of cancer, either increasing or decreasing its incidence and aggressiveness. Time spent with oxygen saturation below 90% appears the polysomnographic variable most strongly associated with unfavorable effects on cancer. Experimental studies support the role of hypoxia as an important ri…
Study and simulation of photovoltaic installation connected to the grid with storage system
2016
In the present paper, a new approach to the management of energy resources in a research laboratory is proposed and evaluated by a simulation for the PV installation realized for the Tunisian-Italian cooperation project DE.DU.ENER.T, using renewable energy and economic criteria. The aim of this project is to improve energy efficiency order to minimize the electricity cost consumed at the laboratory, because according to the bills of electricity received we noticed that there is a high consumption of electrical current, from the STEG grid, and especially by the energy intensive equipment such as drying ovens and all the workstations. So we targeted to install a photovoltaic field of 12KWc to…
Longevity: epigenetic and biomolecular aspects
2015
AbstractMany aging theories and their related molecular mechanisms have been proposed. Simple model organisms such as yeasts, worms, fruit flies and others have massively contributed to their clarification, and many genes and pathways have been associated with longevity regulation. Among them, insulin/IGF-1 plays a key and evolutionary conserved role. Interestingly, dietary interventions can modulate this pathway. Calorie restriction (CR), intermittent fasting, and protein and amino acid restriction prolong the lifespan of mammals by IGF-1 regulation. However, some recent findings support the hypothesis that the long-term effects of diet also involve epigenetic mechanisms. In this review, w…
Peripheral artery disease: potential role of ACE-inhibitor therapy
2008
Giuseppe Coppola, Giuseppe Romano, Egle Corrado, Rosa Maria Grisanti, Salvatore NovoDepartment of Internal Medicine, Cardiovascular and Nephro-Urological Diseases, Chair of Cardiovascular Disease, University of Palermo, Palermo, ItalyAbstract: Subjects with peripheral arterial disease (PAD) of the lower limbs are at high risk for cardiovascular and cerebrovascular events and the prevalence of coronary artery disease in such patients is elevated. Recent studies have shown that regular use of cardiovascular medications, such as therapeutic and preventive agents for PAD patients, seems to be promising in reducing long-term mortality and morbidity. The angiotensin-converting-enzyme (ACE) system…
Statins and peripheral arterial disease: effects on claudication, disease progression, and prevention of cardiovascular events.
2006
Peripheral arterial disease (PAD) of the lower limbs is the third most important site of atherosclerotic disease alongside coronary heart disease (CHD) and cerebrovascular disease (CVD). Best medical treatment is beneficial even in patients who eventually need invasive treatment, as the safety, immediate success, and durability of intervention is greatly improved in patients who adhere to best medical treatment. In recent years, a number of studies have suggested that the ACE-inhibitor ramipril and different statins, together with antiplatelet drugs, reduce cardiovascular morbidity and mortality in PAD. Patients with PAD are really a category of patients with a very high cardiovascular risk…
A model of the filling process of an intermittent distribution network
2010
In many countries, private tanks are acquired by users to reduce their vulnerability to intermittent supply. The presence of these local reservoirs modifies the user demand pattern and usually increases user water demand at the beginning of the service period depending on the tank filling process. This practice is thus responsible for the inequality that occurs among users: those located in advantaged positions of the network are able to obtain water resources soon after the service period begins, while disadvantaged users have to wait much longer, after the network is full. This dynamic process requires the development of ad hoc models in order to obtain reliable results. This paper discus…
Studies on Reticulitermes lucifugus Rossi (Isoptera: Rhinotermitidae): a review of associated hindgut flagellates and investigations on protist speci…
2017
The present study was conducted on protist species from R. lucifugus “Sicily” subspecies in a field site of Palermo (Sicily, Italy) on June 2015. Since protist species associated with R. lucifugus in Europe are still confused and recent revisions are lacking, this work aims at achieving greater clarity on these symbiosis trough a review of the literature in light of new phylogenetic studies on this termite species. The purpose of this work was also to highlight and quantify protists associated with the Sicilian subspecies, R. l. “Sicily”. Results pointed out the real protist community attributable to R. lucifugus from the literature and showed 13 protist species detected in the subspecies R…
PALAZZO STERI DI PALERMO, SOFFITTO LIGNEO DELLA SALA MAGNA INDAGINE FITOSANITARIA
2012
ABSTRACf - Steri Palace of Palermo; Wooden Ceiling of the "Sala Magna ", Phytosanitary Survey. The Steri Palace (from Hosterium = fortified residence) of Palermo was built in the early fourteenth century, exactly from 1307 to 1320, it was Chiaramonte's family residence. Later, it became the seat of the viceroy of Sicily (from 1412 to 1577), of the Director of the Royal "Magna Curia", and Royal Customs (until 1698), of the Inquisition Tribunal (from 1701 to 1792), of the Judicial offices and Custom offices (from 1800 to 1958). Today it is the Centre of the Chancellor's offices of the University of Palermo. It contains several interesting cultural heritage artefacts, including the beautiful d…