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Search Results: 1 - 10 of 1528 matches for " Franklin;Rodas "
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The number of families of Triatoma dimidiata in a Guatemalan house
Melgar, Sergio;Chávez, Juan José;Landaverde, Patricia;Herrera, Franklin;Rodas, Antonieta;Enríquez, Eunice;Dorn, Patricia;Monroy, Carlota;
Memórias do Instituto Oswaldo Cruz , 2007, DOI: 10.1590/S0074-02762007005000001
Abstract: triatoma dimidiata is an important vector of chagas disease in guatemala. to help understand the biology and population dynamics of the insect, we estimated the number of full sibling families living in one house. forty one families with an average size of 2.17 individuals were detected using random amplification of polymorphic dna-polymerase chain reaction genetic markers. this result suggests high levels of migration of the vector, polyandry, and a significant capability for spreading the disease.
Non-Dimensional Values for Convergence of Lift Prediction Using Panel Method  [PDF]
Rodas I. Fernando, Castillo C. Pablo
Open Journal of Fluid Dynamics (OJFD) , 2017, DOI: 10.4236/ojfd.2017.71003
Abstract: This paper presents an implementation and posterior analysis of the convergence of the panel method. The implemented panel method is based on vortex lines and an unsteady wake on a flat plate as a wing. The main goal of the study was to discover parameters and their values range to obtain convergence of the solution. Results of lift convergence in function of control panel’s position, the effect of the size of the wake panels, the dimension of the wake, and the computation time are quantitatively described. The lift results are similar to the predictions by the lifting-line theory and the wake exhibited an expected shape, showing wingtip, and start vortices. Geometric parameters and non-dimensional values were developed to increase accuracy and stability of the method.
Sentinel Surveillance of Influenza-Like-Illness in Two Cities of the Tropical Country of Ecuador: 2006–2010
Richard W. Douce, Washington Aleman, Wilson Chicaiza-Ayala, Cesar Madrid, Merly Sovero, Franklin Delgado, Mireya Rodas, Julia Ampuero, Gloria Chauca, Juan Perez, Josefina Garcia, Tadeusz Kochel, Eric S. Halsey, V. Alberto Laguna-Torres
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0022206
Abstract: Background Tropical countries are thought to play an important role in the global behavior of respiratory infections such as influenza. The tropical country of Ecuador has almost no documentation of the causes of acute respiratory infections. The objectives of this study were to identify the viral agents associated with influenza like illness (ILI) in Ecuador, describe what strains of influenza were circulating in the region along with their epidemiologic characteristics, and perform molecular characterization of those strains. Methodology/Findings This is a prospective surveillance study of the causes of ILI based on viral culture of oropharyngeal specimens and case report forms obtained in hospitals from two cities of Ecuador over 4 years. Out of 1,702 cases of ILI, nine viral agents were detected in 597 patients. During the time of the study, seven genetic variants of influenza circulated in Ecuador, causing six periods of increased activity. There appeared to be more heterogeneity in the cause of ILI in the tropical city of Guayaquil when compared with the Andean city of Quito. Conclusions/Significance This was the most extensive documentation of the viral causes of ILI in Ecuador to date. Influenza was a common cause of ILI in Ecuador, causing more than one outbreak per year. There was no well defined influenza season although there were periods of time when no influenza was detected alternating with epidemics of different variant strains.
El contrato social en Hobbes: ?absolutista o liberal?
Cortés Rodas,Francisco;
Estudios Políticos , 2010,
Abstract: this article presents the central elements of the classic contractualist model of state legitimacy as displayed by thomas hobbes in leviathan. it aims to question the proposal made by leo strauss on hobbes? political philosophy according to which hobbes is the founder of liberalism. through an interpretation of the hobbesian theory of political representation, it intends to detach his image as a defender of political absolutism. the type of liberalism from which it is possible to show that hobbes? conception is unacceptable, is liberalism represented by authors such as benjamin constant, madame de st?el and alexis de tocqueville.
La justicia económica global en el sistema internacional de estados
Cortés Rodas,Francisco;
Estudios de Filosofía , 2009,
Abstract: abstract: this article discusses some of the proposals that modern and contemporary discussions offer on the normative methods for a new international order. it treats of the possibility of demanding, as a matter of justice, the transformation of the relations of power in the international economical and political orders, between the richest societies and the poorer ones. four different models of internal and interstate state order are exposed and criticized. first) the realist model of the absolutist state which establishes peace internally and externally through dissuasion, and which denies that a criteria of justice can be formulated to define the relations between states. second) the kantian model of state of law. third) the social state of rawls with two differentiated models of the contract to define the relations in the interior and the exterior and fourth) the cosmopolitan project. finally, the liberal project of justice is criticized because it reduces the problem of the re-ordering of the international order to distributive justice and does not question the structures of the actual global economic system.
Una Crítica a las Teorías de Justicia Global: al Realismo, a Rawls, Habermas y Pogge
CORTéS RODAS,FRANCISCO;
Ideas y Valores , 2010,
Abstract: this paper discusses some of the proposals raised within the contemporary debate about normative models for a new international order. in the first part, the argumentative strategies of political realism, of john rawls' liberalism and of jürgen habermas' deliberative model are presented. these authors' objections to the cosmopolitan idea of a transformation in the international order based on the demands for global economic justice are debated. in the last part, the text shows that the proposal f global justice presented by thomas pogge is insufficient because, although it shows the implication of the global economic order in the increase of poverty and formulates a global redistributive proposal, it does not consider the problem of the transformation of the prevailing system of power relations within the current capitalist order.
Contenido de aceite, ácidos grasos y escualeno en variedades crudas y procesadas de grano de amaranto
Rodas,Brenda; Bressani,Ricardo;
Archivos Latinoamericanos de Nutrición , 2009,
Abstract: six amaranth grain varieties were processed to yield a nixtamalized flour, one cooked in water, one expanded, a malted one and a laminate samples after a thermic treatment. the chemical values of the raw samples contained from 14.5% to 15.1% protein, 5.9 to 6.7% ether extract and from 2.3% to 3.2% ash on a dry weight basis. the flours from the different processes yield products with a fat content which varied from 6.4% to 7.0% for the 6 varieties. the flours coming from dry heat processing contained higher oil levels than those flours coming from wet processes. the oil from only 3 varieties and from 4 processes were analyzed from its fatty acid composition. the oil contained on the average 17.85% of c16:0, 68.1% of stearic, olic and linoleic acids, 3.86% of c18:3, 5.1% of c20:0 and small amounts of c20:1 and c22:0. the squalene content in the oil of the processed flours varied from 7.0 to 9.6 g/100 g for the raw flour, 8.1 - 12.6 g/100 g for the flour from wet cooking in water, 9.0 -12.7g/100 g for the flour from the nixtamalization process, 10.1-12.8g/100 g for the expanded grain flour, 9.0 to 11.2 g/100 g for the malted flour and 6.0 -9.5 g/100 g for the laminated grain flour. the squalene averages per process showed statistical significant differences.
El contrato social liberal: John Locke
Cortés Rodas,Francisco;
Co-herencia , 2010,
Abstract: the author of this piece shows the key elements of the classic contractualist model of the state legitimacy, proposal by john locke in his major work two essays on civil government. this essay pretend to bring out that although hobbes as well as locke used the instruments of the social contract in order to justify the origin of the political power and both of them come from similar categories there is, nevertheless, a big difference between them. locke defends a model of the liberal state and hobbes personifies the justification of an absolutist state. this difference is emphasized basically because of the role that the doctrine of the resistance plays in locke’s theory. this one allows to show how is possible to conceive a political form whose power is not be irresistible.
La Chanson de Florence de Rome y Otas de Roma: Algunas consideraciones sobre traducción en la Edad Media
Rodas,Giselle; Soria,Gabriela;
Olivar , 2009,
Abstract: comparison between character- and space-construction in la chanson de florence de rome and its castilian version, otas de roma, allows us to establish an outline of the particular features of medieval translation. under this 'transfer circumstance', the material undergoes logical transformations due to its re-contextualization.
Análisis Comparativo de Métodos para la Medición del ángulo de Reposo de Suelos Granulares
Rodas,R; Rousé,P;
Revista de la construcción , 2010, DOI: 10.4067/S0718-915X2010000100011
Abstract: the angle of repose is the maximum angle that allows a heap of soil to remain stable without sliding failure. this angle plays a fundamental role in estimating the maximum steepness of soil masses -such as slopes or soil walls-which directly impacts both on safety and cost of projects. however, despite its importance, chile lacks a common and accepted methodology to measure the angle of repose of soils. in addition, in the literature, several methods have been proposed; even, in 2000, astm published a specific standard for the united states. in this paper we compare the values of angles of repose measured through three methods proposed in literature with the values obtained by the chilean practice, so that differences may be sized and the impact thereof on designs may be analyzed. results show that -for all sands tested- the lowest values correspond to chilean practice, which are in average 35% below the value provided by astm. an application to slope stability shows that the differences in the angles of repose measured translate, for example, in factors of safety differing as much as 82%, and in significant differences in volumes of soil to excavate.
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