Annealing Effects on PECVD-grown Si rich aSiNx Thin Films

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Il peso dello stigma: gli effetti di stereotipi e pregiudizio sulla salute delle persone obese

none2noLe persone obese costituiscono una delle categorie sociali più colpite da stereotipi, pregiudizi e discriminazioni. In questa rassegna gli autori descrivono gli studi che, in particolare negli ultimi dieci anni, hanno documentato l’impatto negativo dello stigma legato al peso sulla salute e sul benessere psico-fisico delle persone obese. Verranno illustrati lavori correlazionali e sperimentali che evidenziano come, a parità di sovrappeso, le esperienze di stigmatizzazione e di discriminazione percepita riducano il benessere psicologico, incrementino il rischio di patologie organiche correlate all’obesità e riducano la probabilità di adottare comportamenti alimentari corretti e un livello di esercizio fisico adeguato. Verranno inoltre discussi i lavori che individuano negli atteggiamenti negativi e nei comportamenti discriminatori (o percepiti come tali) del personale medico un possibile ostacolo alla fruizione dei servizi sanitari da parte delle persone obese. L’insieme dei risultati suggerisce l’importanza di prevedere, nella progettazione di interventi di prevenzione e riduzione del sovrappeso, azioni di contrasto allo stigma e di supporto psico-sociale per le persone che ne sono colpite.mixedCarlo Tomasetto; Vanessa PrivatoCarlo Tomasetto; Vanessa Privat

Thin film silicon photovoltaics: Architectural perspectives and technological issues

Thin film photovoltaics is a particularly attractive technology for building integration. In this paper, we present our analysis on architectural issues and technological developments of thin film silicon photovoltaics. In particular, we focus on our activities related to transparent and conductive oxide (TCO) and thin film amorphous and microcrystalline silicon solar cells. The research on TCO films is mainly dedicated to large-area deposition of zinc oxide (ZnO) by low pressure-metallorganic chemical vapor deposition. ZnO material, with a low sheet resistance ( 82%) in the whole wavelength range of photovoltaic interest, has been obtained. "Micromorph" tandem devices, consisting of an amorphous silicon top cell and a microcrystalline silicon bottom cell, are fabricated by using the very high frequency plasma enhanced chemical vapor deposition technique. An initial efficiency of 11.1% (>10% stabilized) has been obtained.Renewable energy Thin film silicon photovoltaics Building integrated photovoltaics Micromorph solar cells

Characterization of High Efficiency c-Si CPV Cells

Concentrating Photovoltaics (CPV) represents an emerging market at its early stage for terrestrial application with large growth expectation and considerable research activity on new cells production has been conducting recently. As response to a fast growing demand for traceable and independent measurements on CPV cells and systems the European Solar Test Installation (ESTI) has started a research program on indoor/outdoor device characterization. This paper focuses on the results of an intercomparison of procedures and experimental setup for concentrating c-Si cell characterization held at ESTI and at the UTTP FOTO Laboratory of ENEA. Current voltage curves, short-circuit current and efficiency measurements have been performed at high intensities on three different setups: a recently developed 1500X pulsed solar simulator at ESTI and two modified solar simulators capable of achieving up to 250X concentration at ENEA. Reference c-Si cells equipped with neutral density filters of various optical densities have been used at ESTI for checking the linearity of cells under test at different concentration ratios. First results show the agreement within measurement uncertainties of the electrical parameters.JRC.DDG.F.8-Renewable Energy (Ispra

Characterization of High Efficiency c-Si CPV Cells

Concentrating Photovoltaics (CPV) represents an emerging market at its early stage for terrestrial application with large growth expectation and considerable research activity on new cells production has been conducting recently. As response to a fast growing demand for traceable and independent measurements on CPV cells and system the European Solar Test Installation (ESTI) has started a research program on indoor/outdoor devices characterization. This paper focuses on the results of an intercomparison of procedures and experimental setup for concentrating c-Si cells characterization held at ESTI and at the UTTP FOTO Laboratory of ENEA. Current-voltage curves, short-circuit current and efficiency measurements have been performed at high intensities on three different set up: a recently developed 1500X pulsed solar simulator at ESTI and two modified solar simulators capable to achieve up to 250X concentration at ENEA. Reference c-Si cells equipped with neutral density filters of various optical densities have been used at ESTI for checking cells under test linearity at different concentration ratio. First results show the agreement within measurement uncertainties of the electrical parameters.JRC.F.7-Renewable Energ

Cristallizzazione di silicio amorfo via laser: rapporto degli esperimenti a Frascati (progetto FOTO)

Consiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7, Rome / CNR - Consiglio Nazionale delle RichercheSIGLEITItal