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Search Results: 1 - 10 of 24941 matches for " Gianfranco Cattaneo Rodríguez "
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Lo ominoso y el artefacto de la mirada // The uncanny and the device of the look
Gianfranco Cattaneo Rodríguez
Affectio Societatis , 2011,
Abstract: Para Freud lo Unheimlich es una palabra-concepto porque comporta un núcleo que justifica su empleo en el psicoanálisis. Otorgándole estatuto de concepto, Freud articulará lo ominoso a la angustia buscando no perder lo particular de este nuevo descubrimiento, diferenciando algo "ominoso al interior de lo angustioso". En su seminario de 1963-64 dedicado a la angustia, Lacan revisará los desarrollos freudianos respecto al único "afecto verdadero", ubicando en un lugar metodológicamente privilegiado al concepto de Unheimlich; y ejemplificándolo mediante las variantes de su esquema óptico, retornará sobre la relación entre lo ominoso, la angustia y el deseo, desarrollada por Freud en 1919. // The Unheimlich is for Freud a word-concept because it brings a nucleus that justifies its usage in the psychoanalysis. Granting it the state of concept, Freud will articulate what is ignored into the angst looking for what is particular in this new discovery, differentiating something "ignored inside the angst". Lacan will check, in his seminar of 1963-1964 dedicated to the angst, the Freudians developments about the only "true affection", putting the Unheimlich concept in a place methodologically privileged; and exemplifying through the variants of the optical schema, and he will return about the relationship between the uncanny, the angst, and the desire, developed by Freud in 1919.
La pregunta por el fundamento como pregunta por el pensar en Martin Heidegger, una relectura a partir de "La proposición del fundamento" e "Introducción a la metafísica"
Gianfranco Cattaneo Rodríguez
Revista Observaciones Filosóficas , 2011,
Abstract: The following paper aims to place the question of thinking in Martin Heidegger through the reading of The Principle of Reason and Introduction to Metaphysics. The reading of these texts reveals that questioning with Heidegger of what is thinking we are drove to another way of thinking, because the heideggerian way to ask, for leading to the event of difference between thinking and reason, reveals how the former has been subordinated to the latter. This event of difference, reaching the very foundation of understanding and represent, is what will lead to the familiar from the right, and what the family considers reason, appears, moving across the terrain of the disturbing and homelessness (Unheimlich), the other way of thinking. If the philosophy and its thinking are of another order of existence that the reason that lead to the science is towards the ground without foundation of all thinking and so commemorate the oblivion of Being, because if science does not think, as Heidegger says is because it rejects the question of being stepping forgetting: forgetting the oblivion of being and avoiding the question of its paradoxical formulation based on.
Species-Specific Diversity of a Fixed Motor Pattern: The Electric Organ Discharge of Gymnotus
Alejo Rodríguez-Cattaneo, Ana Carolina Pereira, Pedro A. Aguilera, William G. R. Crampton, Angel A. Caputi
PLOS ONE , 2008, DOI: 10.1371/journal.pone.0002038
Abstract: Understanding fixed motor pattern diversity across related species provides a window for exploring the evolution of their underlying neural mechanisms. The electric organ discharges of weakly electric fishes offer several advantages as paradigmatic models for investigating how a neural decision is transformed into a spatiotemporal pattern of action. Here, we compared the far fields, the near fields and the electromotive force patterns generated by three species of the pulse generating New World gymnotiform genus Gymnotus. We found a common pattern in electromotive force, with the far field and near field diversity determined by variations in amplitude, duration, and the degree of synchronization of the different components of the electric organ discharges. While the rostral regions of the three species generate similar profiles of electromotive force and local fields, most of the species-specific differences are generated in the main body and tail regions of the fish. This causes that the waveform of the field is highly site dependant in all the studied species. These findings support a hypothesis of the relative separation of the electrolocation and communication carriers. The presence of early head negative waves in the rostral region, a species-dependent early positive wave at the caudal region, and the different relationship between the late negative peak and the main positive peak suggest three points of lability in the evolution of the electrogenic system: a) the variously timed neuronal inputs to different groups of electrocytes; b) the appearance of both rostrally and caudally innervated electrocytes, and c) changes in the responsiveness of the electrocyte membrane.
Seroprevalence and Risk Factors for Taenia solium Cysticercosis in Rural Pigs of Northern Peru
César M. Jayashi ,Gianfranco Arroyo,Marshall W. Lightowlers,Héctor H. García,Silvia Rodríguez,Armando E. Gonzalez
PLOS Neglected Tropical Diseases , 2012, DOI: 10.1371/journal.pntd.0001733
Abstract: Taenia solium is a cestode parasite that causes cysticercosis in both humans and pigs. A serological survey was undertaken to assess the seroprevalence and risk factors associated with porcine cysticercosis in the rural district of Morropon, Peru. Pigs aged between 2 and 60 months were assessed by the Enzyme-linked Immunoelectrotransfer blot (EITB) assay to determine their serological status against porcine cysticercosis in a cross-sectional study. A total of 1,153 pigs were sampled. Porcine seroprevalence was 45.19% (42.31–48.06). The information about the animals and households was analyzed and risk factors associated with seroprevalence were determined by a multivariate logistic regression analysis. In the porcine population, the risk of being seropositive increased by 7% with every month of age (OR 1.07, 95% CI 1.05–1.09), and by 148% for pigs living in East Morropon (OR 2.48, 95% CI 1.82–3.37). Whereas, the presence of latrines in a household decreased the risk of being seropositive by 49% (OR 0.51; 95% CI 0.39–0.67). Sex and rearing system did not represent either risk or protective factors associated with the seroprevalence of porcine cysticercosis. The findings of this study could be used for further development of control programs that might focus on similar population groups within rural communities of developing countries where cysticercosis is endemic.
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
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