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Search Results: 1 - 10 of 24025 matches for " Emira Rodríguez "
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Posición competitiva de los destinos turísticos latinoamericanos en el mercado espa ol
Emira Rodríguez,Karen Requena,José Mu?oz,María Olarte
Revista Venezolana de Análisis de Coyuntura , 2006,
Abstract: La imagen del lugar, de alguna forma recoge la percepción de los turistas sobre la atracción o rechazo del mismo, factores que en algún momento de la elección permitirán decidir a dónde viajar. Esta evaluación posibilitará ubicar el destino dentro de una posición, al considerar la per-cepción que tienen del mismo con respecto a los demás, partiendo de los factores de atracción y rechazo que afectan su demanda. En tal sentido, esta investigación tuvo por objeto determinar el posicionamiento de los destinos turísticos latinoamericanos (México, Cuba, Venezuela, Repúbli-ca Dominicana, Brasil y Centro América) en el mercado espa ol, partiendo de los factores de atracción y rechazo que afectan su demanda. Se utilizó un análisis de correspondencia para am-bos factores valorados sobre la información suministrada por las empresas minoristas de viaje de la ciudad de Madrid durante el a o 2003, de donde se desprendió que los países sufren ciertos procesos de estereotipación que se evidencian a través de la forma de diferenciarlos dentro del mercado turístico espa ol.
Methodology and Equations of Mineral Production Forecast
—Part I. Crude Oil in the UK and Gold in Nevada, USA. Prediction of Late Stages of Production

Sergio Pérez Rodríguez
Open Journal of Geology (OJG) , 2013, DOI: 10.4236/ojg.2013.35040

The equations of mineral production forecast link the change in time of mineral reserves with the production and the ratio of reserves to production. These equations allow us to model the development of the mineral resources evaluated at any scale. Probabilistic bidimensional charts made from montecarlo simulations provide intervals of confidence for the forecasts. The set of equations is devised and presented for a variety of applications to the oil and gas industry, as well to the production of any other mineral resource, either metals or non metals, whose ore deposit volumes and production might be quantified. The cases studied in the UK and USA are at late stages of production, periods for what the equations are most suitable to be applied without further adjustments. Experimental design allows the diagnosis of the likely values of the variables pertaining to the equations, in order to achieve the results provided by conventional production forecasts or to explore other scenarios of investigation. The method can be practical to evaluate commitments of production of mineral resources with time, to support strategic plans for companies, corporations, countries or regions based on those evaluations, for the screening and ranking of mineral assets based on their production potential and many other tasks where the prediction of future volumes of mineral production is required.

Methodology and Equations of Mineral Production Forecast. Part II. The Fundamental Equation. Crude Oil Production in USA  [PDF]
Sergio Pérez Rodríguez
Open Journal of Geology (OJG) , 2013, DOI: 10.4236/ojg.2013.36044

The fundamental equation of mineral production allows to model and design the dynamics of mineral production, however complex they are or could be. It considers not only the case of a constant production to reserves ratio for given intervals of time, but with a piecewise approach, it is also enabled to account the variation on time of this ratio. With a constant production to reserves ratio, the limit expression of the fundamental equation takes the form of an Erlang distribution with a fixed shape parameter. The rate parameter equals the scale factor. The discrete piecewise version, instead of considering the reserves and the production to reserves ratio being constant through certain intervals of time, updates both variables by units of time. This version, using either lineal or non lineal functions for the variables involved, let to model known production profiles or to forecast them by experimental design. The Hubbert’s linearization updated with recent data and the p-box method applied to determine ultimate recovery of U.S. crude oil reserves indicate official accounts underestimate them. The analysis of the ideal model of production based on Hubbert’s linearization and curve, can be made by decomposing it in the distribution with time of the reserves and of the production to reserves ratio. The distribution of reserves with time is synchronized for both the ideal Hubbert’s curve and real profiles, disregarding whether they match or not. The departure of real profiles from the ideal Hubbert’s curve lies on the differences or correspondences of the distribution with time of the production to reserves ratio. The MonteCarlo simulation applied to forecast US crude oil production for the next five years points to a slow decline, with average annual yields presenting a difference lower than 10% between the start and the end of the simulation.

The Hypothesis of Hyperia from the Perspective of Neuronal Plasticity  [PDF]
Javier álvarez-Rodríguez
Open Journal of Medical Psychology (OJMP) , 2016, DOI: 10.4236/ojmp.2016.51003
Abstract: We analyze certain mental automatisms appearing in the consciousness with phenomenological features of simple partial seizures (SPSs). We propose to include all these phenomena into a cognitive function to which we term hyperia. In this paper, we analyze the similarities between the nature of this cognitive function and the mechanisms used by our brain to elicit neuronal plasticity.
Nutritional Composition of Sea Cucumber Isostichopus sp.  [PDF]
Wensy Vergara, Adriana Rodríguez
Natural Resources (NR) , 2016, DOI: 10.4236/nr.2016.73013
Abstract: The knowledge of the chemical composition of invertebrates as sea cucumber contributes to improving our understanding of these living organisms. This study compared the chemical composition of wild sea cucumber Isostichopus sp., between February 2013 and January 2014. Sea cucumbers were captured by hand by artisanal fishermen and transported alive to the laboratory of Aquaculture of the Universidad del Magdalena (Colombia), where they were subsequently killed and taken to freeze until analysis. For proximate analysis 20 g of muscle were used for each sample. The analysis (in triplicate) was performed according to [1]. Significant differences (p < 0.05) in the protein content, lipids and ash were found. The chemical composition ranged from 2.74% to 6.63% for protein; about 0.07% to 0.35% for lipids; 3.16% to 3.81% for ash; between 83.74% and 86.92% for moisture. Chemical composition of muscle Isostichopus sp. was similar to that reported for fresh sea cucumbers internationally traded, which indicates that it is a species with a competitive commercial value for use in food.
Anthropometric specimens and picturesque curiosities: the photographic orchestration of the “black” body (Brazil, circa 1865)
Rodríguez BE
Revista Ciencias de la Salud , 2012,
Abstract: In Against Race Paul Gilroy writes that the “race producing” activity unleashed in the eighteenth and nineteenth-centuries “required a synthesis of logos with icon, of formal scientific rationality with something else, something visual and aesthetic” (1). During this period, scientific discourses that elaborate the concept of race adopt new technologies, especially photography. In this article, I am particularly interested in analyzing how the “black” body is arranged photographically. I probe some examples taken from the archives collected by the Swiss scientist Louis Agassiz and the photographer Christiano Júnior in mid-19th century Rio de Janeiro. Objective: to question how these visual artifacts contributed to the re-assemblage of racial discourses precisely at the moment when the black body was invested with legal subjectivity
Efecto de la cobertura del suelo con cascarilla de arroz en el crecimiento y rendimiento del tomate de ramillete
Rodríguez Rodríguez,Gisela;
Ciencia e investigación agraria , 2007, DOI: 10.4067/S0718-16202007000300006
Abstract: from the spring to fall of 2005, in northern kanto, located in central japan, an open field was prepared for cultivating cherry tomatoes (lycopersicon esculentum var. cerasiforme) with three types of mulch: 1. rice straw with rice bran, 2. rice straw alone, and 3. polyethylene film covering. the fruits were harvested from june to the end of september. there were significant differences between the treatments in both the total yield of fruit (p = 0.0379) as well as in the yield of normal fruit (p = 0.0458). the highest total fruit production (3.4 kgplant') was obtained with the rice straw and bran treatment, followed by the other two treatments, with about 2.5 kg-plant'. other factors, such as total fruit number and the weight of damaged fruit, were not significantly different. forty days after planting in the field, plant height and other vegetative characteristics were measured; no statistically significant differences between the studied soil treatments were observed. these results indicate that the application of rice bran on a field surface previously covered with rice straw contributed to an increase in the yields of the tomato plants. the application of rice bran also facilitated weed control management
La atención integral centrada en las personas. Principios y criterios que fundamentan un modelo de intervención de discapacidad
Pilar Rodríguez Rodríguez
Palabras Mayores , 2011,
Abstract: Reflexiones sobre el modelo clásico de atención a personas mayores y personas con discapacidad, frente a lo cual se propone y grafica un modelo de atención integral centrado en la persona, en el marco de los cambios sociales, el avance en políticas sociales y en los derechos. http://www.imsersomayores.csic.es/documentos/documentos/pilar-atencion-01.pdf
Ciudad educadora. Una perspectiva politica desde la complejidad
Jahir Rodríguez Rodríguez
Urbano , 2007,
Abstract: El Proyecto Ciudad Educadora, tiene como finalidad primordial- la construcción de una ciudadanía organizada, autónoma y solidaria, capaz de convivir en la diferencia y de solucionar pacíficamente sus conflictos. Ciudad educadora es un proyecto que reivindica lo colectivo y lo público, lo político y lo ético y busca ingresar a la modernidad haciendo uso de la educación como fenómeno eminentemente comunicativo cuyo desarrollo potenciará la capacidad de incidencia de la sociedad sobre sus propios destinos, estableciendo cambios en la conducta y los comportamientos de los ciudadanos, buscando la construcción de la democracia y la ciudadanía como proyecto colectivo.
Psychocardiology, discipline is essential in these times La Psicocardiología, disciplina indispensable de estos tiempos
Teresa Rodríguez Rodríguez
MediSur , 2010,
Abstract: The paper addresses the need to consider Psychocardiology indispensable in modern times, taking into account the continuous increase of cardiovascular disease, implying the existence of genetic markers, as well as psychological and social factors. Emphasis is on considering the psychological intervention on prevention and rehabilitation for these conditions, the psychological aspects associated with invasive procedures in patients with coronary artery disease, the changes arising from acute illness and the critical condition of the patient also changes cognitive order result of changes in the microcirculation and cardiac ischemia. It emphasizes the importance of giving the study and psychological interventions in heart disease and a gender focus to include the study of the family as the cradle of learning styles of life, social support agent, as well as subjects that involved directly in the complex network of heart disease by genetic markers. It appeals to the need to sensitize medical professionals and doctors in the multifactorial approach of these diseases, as the only way to reduce morbidity and mortality from this cause and raise the quality of life of coronary patients. En el trabajo se aborda la necesidad de considerar la Psicocardiología como indispensable en los tiempos actuales, teniendo en cuenta el continuo incremento de las enfermedades cardiovasculares, al implicar la existencia de marcadores genéticos, además de factores psicológicos y sociales. Se enfatiza en considerar la intervención psicológica en la prevención y rehabilitación de tales padecimientos, en los aspectos psicológicos asociados a procedimientos invasivos en pacientes con afecciones coronarias, a las alteraciones que se derivan del padecimiento agudo y el estado crítico del enfermo, además, las alteraciones de orden cognitivo consecuencia de modificaciones en la microcirculación e isquemia cardiaca. Se insiste en la importancia de otorgarle al estudio e intervencionismo psicológico de las enfermedades coronarias un enfoque de género y en incluir el estudio de la familia por ser la cuna de aprendizaje de estilos de vida, agente de apoyo social, y también como sujetos que se involucran de manera directa en el complejo entramado de las enfermedades cardiacas por marcadores genéticos. Se apela a la necesidad de sensibilizar a profesionales médicos y no médicos en el enfoque multifactorial de estas enfermedades, como única vía de disminuir la morbimortalidad por esta causa y elevar la calidad de vida de los enfermos coronarios.
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