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Search Results: 1 - 10 of 1264 matches for " Stefania Balzan "
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ALPINE FARM SCALE INVESTIGATIONS OF THE RELATIONSHIPS BETWEEN PRODUCTIVE SYSTEM AND QUALITY OF DAIRY PRODUCTS
Severino Segato,Stefania Balzan,Carla Azzurra Elia,Ariadne Granata
Poljoprivreda (Osijek) , 2007,
Abstract: Alpine dairy farming is shifted from an extensive activity based on pasture and low genetic merit cow to an intensive system with specialized breeds and increasing level of concentrate as a supplement in the diet. As a main consequence, a lower echo-compatibility could determine adverse externalities on environment and quality of dairy products. Considering 18 dairy farming located in the mountain area of Veneto Region (Italy), the Environmental Summarizing Indicator (ESI) was estimated by using agronomic and dairying variables. Results indicated that variability of ESI was manly due to productive performance of dairy cowsprobably because there was a lack of information in the assessment of pasture characteristics. However, higher level of ESI were closely related to the increase of N-phile species and/or less attractive vegetation for grazing cows, even if the indicator seems to explain only a limited part of the variability of the phenomenon. The increase of ESI values seemed to lead to a loss of nutritive value of milk because of the incidence of health favourable fatty acids was reduced.
Colour traits in the evaluation of the ripening period of Asiago cheese
Giorgio Marchesini,Stefania Balzan,Severino Segato,Enrico Novelli
Italian Journal of Animal Science , 2010, DOI: 10.4081/ijas.2009.s2.412
Abstract: The research was carried out on Asiago d’Allevo cheese samples produced in a single farm located in the Altopiano dei Sette Comuni (above 1000m a.s.l.). After 6-12-18 and 36 months of ripening, samples were analyzed for quality traits, in order to evaluate the effect of ripening on colour and gross composition. As expected crude protein and fat significantly increased through the considered period. Ripening led to a significant decrease of L*, a* and b* values. Lightness showed a negative relationship with crude protein, meanwhile a* and b* were both negatively related to fat content. Concerning L*, the trend could be explained by water loss and N-soluble compounds concentration, which could alter protein matrix. a* and b* reduction was probably related to degradation processes such as lipolysis, which seemed to be extensive in hard and long ripened cheese. Ripening affected significantly the light reflectance at all λ with green cheese having the higher values.
Teses e disserta es: a qualidade em quest o. Desdobramentos Theses and dissertations: quality in question. developments
Newton Cesar Balzan
Avalia??o: Revista da Avalia??o da Educa??o Superior (Campinas) , 2012, DOI: 10.1590/s1414-40772012000300011
Abstract: A pesquisa educacional vem registrando forte crescimento nas últimas décadas. Há dúvidas, porém, sobre a qualidade dessa produ o e de seus posteriores desdobramentos. Este estudo faz parte de uma pesquisa mais ampla que teve como objetivo principal avaliar a qualidade de teses e disserta es defendidas entre 2000 e 2004, cujo foco de investiga o envolveu 13 cursos de gradua o correspondentes a 7 grandes áreas do conhecimento. Levantamento junto a bases de dados permitiu localizar 436 trabalhos direcionados à Educa o Superior. Desses, 36 deles foram considerados como os mais relevantes para a investiga o pretendida. Para o presente artigo, após leituras e releituras desse material, passou-se à análise por unidades, tendo-se como referência 10 categorias levantadas através do exame detalhado de 12 trabalhos selecionados aleatoriamente. Os resultados obtidos apontam para níveis de qualidade superiores àqueles que este pesquisador tinha como pressuposto inicial. Os autores foram entrevistados, procurando-se identificar os desdobramentos de suas pesquisas em termos de divulga o dos resultados, contribui o para a Educa o Superior e desenvolvimento de suas carreiras acadêmicas. Educational research presented strong growth in the last decades. However, there are doubts about the quality of this production and of its further developments. This study is part of a broader research having as main purpose to evaluate the quality of theses and dissertations defended between 2000 and 2004 whose focus of investigation were 13 undergraduate programs in seven fields of knowledge. A survey on data bases permitted to locate 436 works related to higher education, of which 36 were considered as the most relevant for this research. For the present paper, after the readings and re-readings of the material, we made an analysis by units, having as reference 10 categories defined after detailed examination of twelve works randomly selected. The results obtained indicated levels of quality superior to those previously hypothesized. The authors were interviewed in order to identify the developments of their researches in terms of publication of results, contribution to higher education and advancement of their academic careers.
Oxidative Stress and Programmed Cell Death in Yeast
Gianluca Farrugia,Rena Balzan
Frontiers in Oncology , 2012, DOI: 10.3389/fonc.2012.00064
Abstract: Yeasts, such as Saccharomyces cerevisiae, have long served as useful models for the study of oxidative stress, an event associated with cell death and severe human pathologies. This review will discuss oxidative stress in yeast, in terms of sources of reactive oxygen species (ROS), their molecular targets, and the metabolic responses elicited by cellular ROS accumulation. Responses of yeast to accumulated ROS include upregulation of antioxidants mediated by complex transcriptional changes, activation of pro-survival pathways such as mitophagy, and programmed cell death (PCD) which, apart from apoptosis, includes pathways such as autophagy and necrosis, a form of cell death long considered accidental and uncoordinated. The role of ROS in yeast aging will also be discussed.
A vez e a voz dos coordenadores das CPAS das IES de Campinas que integram o SINAES
Augusto, Rosana;Balzan, Newton Cesar;
Avalia??o: Revista da Avalia??o da Educa??o Superior (Campinas) , 2007, DOI: 10.1590/S1414-40772007000400004
Abstract: the purpose of this article is to present the work done by the internal evaluation commissions of higher education institutions of campinas that integrate the national higher education evaluation system (sinaes), from the point of view of a fundamental actor - the coordinator - who, along with the institutional assessment team, is responsible for the institution's self evaluation process. the main focus of this work is to investigate how the evaluation process is coordinated. additionally, the research investigated who the coordinators are, what are their expectations and how the institutional evaluation process was conceived.
An in Vitro Evaluation of Pressure Generated by Programmed Intermittent Epidural Bolus (PIEB) or Continuous Epidural Infusion (CEI)  [PDF]
Silvia Stirparo,Stefania Fortini,Stefania Espa,Antonio Cenedese
Open Journal of Anesthesiology (OJAnes) , 2013, DOI: 10.4236/ojanes.2013.34049
Abstract: PIEB has been reported as being superior to CEI for labor analgesia. The aim of this study was to measure the pressures generated by two commercially available pumps (CADD PIB, Smiths and Gemstar, Hospira) when delivering PIEB or CEI at 2 commonly used rates of infusion (10 or 5 mL). The two pumps were set to deliver fluid at four rates (CEI: 5 or 10 mL/h; PIEB: 5 or 10 mL every h) and connected to a pressure transducer (PCB Piezotronics 1500 connected to a NI USB-6251 Screw Terminal) to determine the pressures applied during each infusion. The peak pressure generated during the PIEB mode was consistently higher when compared to the CEI mode in both pumps. When comparing the two pumps in the PIEB 10 mL every hour mode, the peak pressures were approximately the same, while the pressure pattern differed. For each cycle the pressure generated by Gemstar oscillated from 25 mmHg to 0 mmHg; whereas with the CADD pump the baseline pressure was above 0. The Gemstar pump piston frequency (1.2 Hz) was twice as high as the CADD (0.5 Hz), so the volume delivered per cycle was lower. In the PIEB 5 mL every hour mode the peak pressures followed the same wave patterns. However, unlike the 10 mL mode, the pump piston frequency was approximately the same in both pumps. In both the CEI 5 or 10 mL/h modes, the CADD peak pressure was four times greater than the Gemstar. Both cycled between their respective peak pressures and 0 mmHg. Since the peak pressure of the CADD was approximately the same with PIEB and CEI, we speculated that the most important factor affecting the distribution of the solution in the epidural space was not the peak pressure per se, but the mode of delivery of the bolus.
An in Vitro Evaluation of Pressure Generated by Programmed Intermittent Epidural Bolus (PIEB) or Continuous Epidural Infusion (CEI)  [PDF]
Silvia Stirparo, Stefania Fortini, Stefania Espa, Antonio Cenedese, Giorgio Capogna
Open Journal of Anesthesiology (OJAnes) , 2013, DOI: 10.4236/ojanes.2013.34049
Abstract:

PIEB has been reported as being superior to CEI for labor analgesia. The aim of this study was to measure the pressures generated by two commercially available pumps (CADD PIB, Smiths and Gemstar, Hospira) when delivering PIEB or CEI at 2 commonly used rates of infusion (10 or 5 mL). The two pumps were set to deliver fluid at four rates (CEI: 5 or 10 mL/h; PIEB: 5 or 10 mL every h) and connected to a pressure transducer (PCB Piezotronics 1500 connected to a NI USB-6251 Screw Terminal) to determine the pressures applied during each infusion. The peak pressure generated during the PIEB mode was consistently higher when compared to the CEI mode in both pumps. When comparing the two pumps in the PIEB 10 mL every hour mode, the peak pressures were approximately the same, while the pressure pattern differed. For each cycle the pressure generated by Gemstar oscillated from 25 mmHg to 0 mmHg; whereas with the CADD pump the baseline pressure was above 0. The Gemstar pump piston frequency (1.2 Hz) was twice as high as the CADD (0.5 Hz), so the volume delivered per cycle was lower. In the PIEB 5 mL every hour mode the peak pressures followed the same wave patterns. However, unlike the 10 mL mode, the pump piston frequency was approximately the same in both pumps. In both the CEI 5 or 10 mL/h modes, the CADD peak pressure was four times greater than the Gemstar. Both cycled between their respective peak pressures and 0 mmHg. Since the peak pressure of the CADD was approximately the same with PIEB and CEI, we speculated that the most important factor affecting the distribution of the solution in the epidural space was not the peak pressure per se, but the mode of delivery of the bolus.

El siglo decimonónico latinoamericano en la Red
Gallini,Stefania;
Historia Crítica , 2007,
Abstract: this essay describes and analyzes a series of internet resources that refer to nineteenth-century latin american history, and organizes them by kind. the purpose is to demonstrate various possible ways that people who research, teach and study nineteenth-century latin america can make use of the internet. an additional goal is to stimulate discussion on the challenges -epistemological and practical- that the internet and hypermedia present to the historian and the traditional ways of constructing and publishing historical narratives.
Historia, ambiente, política: el camino de la historia ambiental en América Latina
Gallini,Stefania;
Nómadas , 2009,
Abstract: after several years of gestation the environmental history is currently an academic field with recognized relevance as an investigation and education area in many latin american countries. the article makes a reading about the development of this field in the region and identifies three aspects which have characterized the literature published in latin america: first, the theories and methods of latin american environmental history; second, the cultural reading of the environmental history; finally, the analysis of the relationship between territorial expansion, exported goods, and new learning from 1870 to 1930.
El ambiente entre representación y ecología - Un estudio de caso en Guatemala, siglo XIX
Gallini, Stefania;
Varia Historia , 2005, DOI: 10.1590/S0104-87752005000100005
Abstract: guatemala - where the culture of coffee became relevant - was the target of intense idealization of its nature, at the same time that it was exalted as an essentially agricultural nation. such images were built upon natural bases as well as upon social and historical representations. many studies point to the existence of two homogeneous macroregions in the territory. however, each one of them presents an ecological composition much more varied than is traditionally supposed, which is one of the main factors for understanding the historical constitution of coffee plantation regions in that country.
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