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Search Results: 1 - 10 of 40377 matches for " Jorge Alberto; "
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Anthropogenic Disturbances and the Natural Vegetation Regeneration: A Case Study of a Forest Fragment Located in a Cuesta Relief Area, State of S?o Paulo, Brazil  [PDF]
Luiz Alberto Blanco Jorge, Vanessa Rodrigues Pereira
Open Journal of Forestry (OJF) , 2015, DOI: 10.4236/ojf.2015.56055
Abstract: The present study has been conducted in one of the five natural vegetation fragments at the Experimental Farm Edgardia, in Botucatu, São Paulo State, Brazil. In the past the forest fragment suffered disturbances due to the selective exploitation of tree species and the use of part of the surface as pasture. The objectives of this research were to evaluate the structure and the dynamics of natural vegetation. Three phytosociological surveys (2006, 2010 and 2014) were carried out in a sampled area of one hectare. The most abundant species were mapped in 2014, in a sampling unit with two hectares. Individuals of 37 families and 110 species have been recorded. The oscillation of the basal area observed through the forest inventories was due to the instability caused by disturbances. Only two out of the seven most abundant species mapped showed exponential diameter distribution. The unimodal distributions shown by the other five species have suggested that the vegetation has been occupying the most open spaces through regeneration in cycles. There was direct association between the spatial distribution and the dispersion syndrome for five out of the seven most abundant species. Three species have zoochoric dispersion, showing that wild animals populations have accomplished their function in the dispersion of seeds/fruit. The spatial distributions of four out of the seven most abundant species have provided evidence of how the regeneration of natural vegetation is being processed in this area.
Estudios Gerenciales , 2008,
Abstract: the purpose of this study is to find the factors that influence the long term funding decision making in the metal mechanic industry at valle del cauca (colombia), unexplored until now. the study covers the 2000-2006 period. the method used was an analysis of the financial structure and a panel data econometric model. the reference framework in based on the main theories for capital structures and field test at the domestic and international level. a long term debt level is found that is highly dependent on credit with financial institutions; the determining factors and their relationship with debt are: fiscal protection other than debt (-), growth opportunities (+) and profitability (-). the analysis of the factors don?t allow to fully demonstrate if the companies want to find an optimum capital structure or to avoid asymmetrical information problems given the poorly developed colombian capital market, which warrants expanding the research in this field.
Estudios Gerenciales , 2002,
Abstract: this paper shows the most widespread and accepted capital structure theories in the finance world form the fifties until today. in a chronological order, it identifies the best known research work and its authors, the factors analized, the hypothesis, the scenarios and the economic theories supporting them. it also presents the most controversial aspects. the thesis are compared, and the relationship between leverage, capital cost and firm valuation is analized. this paper provides an overview of the "state of art" capital structure in corporations today.
Ramos Torres,Jorge Alberto;
Universidad y Salud , 2011,
Abstract: introduction: many research projects suggest that essential hypertension can be present at an early age; this implies that blood pressure in young adults is a risk indicator for essential hypertension in adulthood. this study was aimed to standardize the blood pressure levels of young university students determining their relationship with the universal patterns and also to identify student’s habits and lifestyle, in order to establish the presence of risk factors for hypertension. methods: two hundred forty young students (ages ranging from 18 to 23) participated in this cross-sectional study. their blood pressure was tested and a subsequent survey of prevalence was applied. the analysis of the information was carried out in epi info and spss statistical packages and the participants signed a consent form. results: the most relevant finding was the prevalence of prehypertension in a group of young participants, as well as the presence of stage i hypertension in some of them. it was also clear an exposure to cardiovascular risk factors among the participants. conclusions: changes in blood pressure and exposure to cardiovascular risk factors among the participants need to be further monitored and reevaluated.
SolidFlexTM - la cuarta generación en endoscopia
Campos Castellanos,Jorge Alberto;
Archivos Espa?oles de Urología (Ed. impresa) , 2009, DOI: 10.4321/S0004-06142009000700006
Abstract: objectives: to design and develop the fourth generation in endoscopy after the rigid, semi-rigid and flexible instruments. this next generation technology has been named solidflextm, and it was designed by a surgeon based on many years of research with the objective to provide easier and faster solutions for physicians when performing endoscopic procedures. methods: this new endoscope called solidflextm has been brought to light with the latest technology to provide surgeons of every age the capabilities to carry out any possible endoscopic procedure. solidflextm is state-of-the-art in both design and construction, giving the instrument a much better balance with only one third of the weight of the usual flexible endoscope. the instrument is ergonomic, intuitive (instinctive perception) and coherent, meaning that the handle control moves the instrument's active flexible section towards predictable, pre-selected areas, driving the procedure fluidly throughout. it provides the stability of a rigid and semi-rigid instrument with the exploration capabilities of the flexible endoscope in order to achieve the best means of rendering a patient 100% stone free. results: the solidflextm ureteroscope prototype has retrieved urinary stones in 9 patients and 11 renal units. these procedures were divided in two groups: group i, pre-stented after double "j" withdrawal for a previous renal colic episode. group ii, during the acute renal colic episode. ureteral dilatation was carried out only in group ii and after dilatation in both groups, insertion up to the renal pelvis or the area were the obstruction was present, took only a matter of 15 seconds at the most. all procedures could be completed in each group and stones in the renal papilla from 200 nm, to 4 mm in any given papilla were removed either by laser energy, retrieved with a basket or both. patients did not experience any pain or major discomfort after the procedure, and no analgesic medication was required, nor requeste
Practice firms and networked learning: matches and mismatches
Santos, Jorge Alberto dos;
Cadernos EBAPE.BR , 2008, DOI: 10.1590/S1679-39512008000500002
Abstract: this paper is concerned with how students describe their experiences of the practice firms network learning environment (pfn) within a management course in a private institution of higher education in brazil (faculty pitágoras-mg). the work is derived from a broader study where i investigated the pfn concept as it is used in the brazilian context. the students' description of their relationship with the pfn model is made the object of study in a phenomenographic perspective (marton, 1986; marton and booth, 1997). the paper discusses the data and results of the research and concludes that the model is potentially effective to link participants in management education but that it has yet to learn how to use more effectively the power of information technology. from students' descriptions, flaws in the model derive from the following features: a) the model itself does not stress networked learning; b) the infrastructure does not support the design; and c) the teachers' approach to the model is not congruent.
Estructura financiera y factores determinantes de la estructura de capital de las pymes del sector de confecciones del Valle del cauca en el período 2000-2004
Rivera Godoy,Jorge Alberto;
Cuadernos de Administración , 2007,
Abstract: this article presents the results of a study whose purpose was to know the financial structure and determining factors for the capital structure of the garment manufacturing sector smes located in valle del cauca (colombia). the main contributions of theories on capital structure and empirical evidence were used as a point of reference and the methodology employed was an economic - financial analysis and an econometric panel data model for the 2000-2004 period. a great and growing concentration of short-term indebtedness was found, especially to financial institutions and vendors although some differences in financing were seen between small enterprises and medium enterprises. also, we may appreciate that growth opportunities, profit retaining, debt costs, profitability, the age of the company, and non-debt fiscal protection are the factors with most influence when it comes to making decisions on long-term indebtedness. those findings encourage a detailed inquiry on each one of the pertinent factors in the capital structure.
"M'hijo el dotor" como hijo y protagonista de la universidad de la calle
Kulemeyer,Jorge Alberto;
Cuadernos de la Facultad de Humanidades y Ciencias Sociales. Universidad Nacional de Jujuy , 2010,
Abstract: the university of the street (udelac) was part of the thoughts and beliefs of the main part of the argentine society during an age that can be placed in the last two decades of the xix century and the first seven decades of the xx century. at the beginning of that time, the first or second generations of european immigrants located in the "pampa gringa", had learnt different trades from other people′s experience withouth studing at any institution, but making great efforts to have success. they believed that the key instrument to secure social promotion to their children avoiding poverty and suffering was to study at a free public university. it was clearly shown in the famous theatre play "m′hijo el dotor" ("my son, the doctor"), by florencio sánchez, which reinforced that belief. the most attractive option in the social landscape of those times were the "doctors", especially physicians and lawyers. there was a possibility of being successful and having economic welfare without the support of a family fortune. that belief of the necessity of social promotion by studying liberal professions still continues in poor rural areas that have asymmetric social structures and more creole population. gradually, the mechanisms and strategies of the university of the street, that were originally defined and understood as an undoubtedly contrast to the formal university, were taking many aspects from the essence of the university system. this piece of work is written appealing to some resources of both thought and action systems in order to take into account the aim of achieving an appropriate integration according to the present university system.
Entre el romance, las "perras" y el desencanto: una mirada a las relaciones amorosas de los jóvenes bogotanos
Palomino Forero,Jorge Alberto;
Nómadas , 2012,
Abstract: the article presents the tensions generated in romantic life among young people in bogota, as a new way of subjectivity that emerges through the so-called figure of the doggy - bitch. the text explores how the seduction performances done by this subject, destabilize the notion of legitimate partner through romantic love, giving way to other modes of comprehending love and sexuality. however, it is concluded that the ideal of romantic love remains a strong ally for the capitalist system reproduction process.
Giraldo,Jorge Alberto;
Revista EIA , 2008,
Abstract: financial crises generate injurious macroeconomic effects that finish affecting the standard of life of the majority of the population. identification, prevention, or minimization of their effects is task of the economic authorities that use different tools for diagnosis. in this article the methodology of goldstein, kaminsky and reinhart for the construction of indicators of early warning system of financial crises is explained, introducing some innovating concepts for the accomplishment of the analysis and, in addition, it is designed to be applied in the developing countries so-called emerging markets.
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