Search results for " panel"
showing 10 items of 190 documents
The analysis of poverty in Italy. A fuzzy dynamic approach
2004
The commonly used criterion to sharply separate the poor from the non poor on the basis of a poverty threshold appears to be too severe in comparison with the nature of poverty. The latter is multidimensional in its components (domain) and continue in its states (codomain). Moreover an income-based poverty line allows for a remarkable number of spurious transitions below and over that line, which do not correspond to true variations in household’s standard of living. This study starts from the analysis of common (with crisp states) transition matrices; then a fuzzy multidimensional poverty indicator is built. In conclusion, fuzzy states transition matrices synthesize interpretative content …
A three-wave panel study on longitudinal relations between problematic social media use and psychological distress during the COVID-19 pandemic
2022
Background: It still remains unclear whether problematic social media use (PSMU) is a cause or a consequence of psychological distress. The present study aimed to investigate the temporal relationships between PSMU and psychological distress through a three-wave panel study (between April and July 2020, with an interval of 1 month between each period of time). Methods: 3,912 adult Italian participants were surveyed during the COVID-19 pandemic for psychological distress (Depression, Anxiety and Stress Scale) and PSMU (Bergen Social Media Addiction Scale). Random-Intercept Cross-Lagged Panel Models were applied to disaggregate between-person from within-person associations as regards PSMU an…
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…
SAFETY COVER HYDRO-PV Dispositivo domotico multifuzione per la manutenzione e la sicurezza dei pannelli fotovoltaici con aumento dell’efficienza e de…
2018
Con l’aumento dell’uso dell’energia solare, sia in ambito civile che in ambito industriale, diventa sempre più importante il problema della manutenzione e della gestione dei pannelli fotovoltaici.Il dispositivo Safety Cover Hydro - PV, ideato e brevettato dai membri dalla Safety Environmental Engineering (spin-off dell’Università degli Studi di Palermo che opera nell’ambito della Sicurezza Ambientale) consente di superare tali limiti
Datu vizualizācijas vieta datu noliktavas arhitektūrā: informācijas paneļu lietojums
2020
Maģistra darbs apskata datu vizualizācijas un to pielietojumu studentu datu analīzē, izmantojot informācijas paneļu rīkus. Tika veikts kritēju apskats, izmantojot Gartner uzņēmuma piedāvātos kritērijus un papildināts ar zinātnisko rakstu kritērijiem. Apskatīta datu vizualizācijas nozīme datu noliktavas arhitektūrā. Darba gaitā tika izpētīts informācijas paneļu funkcionalitāte, kādas iespējas sniedz paneļu izmantošana, kā arī problēmas ar ko saskaras informācijas paneļi. Piemērots datu analīzes rīks, ļauj labāk izprast datu būtību un ļauj ātrāk izdarīt secinājumus. Darba mērķis ir izpētīt informācijas paneļu iespējas un pielietot QlikView datu vizualizācijas rīku, kas nodrošina informācijas …
On the distribution of education and democracy
2006
This paper empirically analyzes the influence of the distribution of education on democracy by controlling for unobservable heterogeneity and by taking into account the persistency of some of the variables. The most novel finding is that increase in the education attained by the majority of the population is what matters for the implementation and sustainability of democracy, rather than the average years of schooling. We show this result is robust to issues pertaining omitted variables, outliers, sample selection, or a narrow definition of the variables used to measure democracy.
The Global Side of the Investments-Savings Puzzle
2008
In this paper we re-examine the long standing and puzzling correlation between national savings and investment in industrial countries. We apply an econometric methodology that allows us to separate idiosyncratic correlation at the country level from correlation at the global level. In a major break with the existing literature, we find no evidence of a long run relationship in the idiosyncratic components of savings and investment. We also find that the global components in savings and investments commove, indicating that they react to shocks of a global nature.
CHEMICAL AND SENSORY CHARACTERISTICS OF FIVE LOQUAT CULTIVARS
2015
Fruit quality can be evaluated by combining chemical-physical and sensory analyses. In this trial, both instrumental and sensory analyses were carried out on fruit of 5 loquat cultivars (âNespolone di Trabiaâ, âSanfilipparaâ, âVirticchiaraâ, âMarcenA²â and âGolden Nuggetâ), with the aim of assessing their commercial quality. Fruit weight, transversal and longitudinal diameter, total soluble solid content (TSS), and titratable acidity (TA) were measured. In addition, a sensory profile of each cultivar was defined by a trained panel, which generated 16 attributes. The highest fruit weight was found in âGolden Nuggetâ and âSanfilipparaâ; the latter exhibited also th…
Foliar Applications with SUNRED® Biostimulant Advance and Uniform Fruit Ripening in Orange and Olive
2015
This study evaluated the effect of foliar biostimulants on fruit quality of adult 'Valencia' orange and 'Biancolilla' olive trees. Half of the selected orange and olive trees were sprayed twice before harvest with the SUNRED® commercial mix containing phenylalanine, methionine, mono-saccharides and oxylipins from plant extracts as well as potassium salts and urea. Orange and olive yields and fruit quality were measured at harvest, and fruit peel color was determined by digital image analysis. Phenolic and sensory profiles were also determined in the olive oil. In orange, the foliar spray increased TSS:acid ratio and peel color uniformity, while in olive, it increased peel color uniformity, …
Gelso: disidratazione ad essiccazione ad aria calda per la sua conservazione
2020
L’obiettivo di questo lavoro è stato quello di valutare la possibilità di disidratare con aria calda frutti di gelso, cercando di ottenere un prodotto nuovo contribuendo alla risoluzione dei problemi legati alla sua diffusione. L’obiettivo di questo lavoro è stato quello di valutare la possibilità di disidratare con aria calda frutti di gelso, cercando di ottenere un prodotto nuovo contribuendo alla risoluzione dei problemi legati alla sua diffusione.