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Search Results: 1 - 10 of 136763 matches for " Víctor Mora "
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Vacas Mora,Víctor;
Antipoda. Revista de Antropología y Arqueología , 2008,
Abstract: this article briefy revises the most recent academic discussions about amazonic anthropophagy attempting to frame that practice on a wider background that provides a meaning for the activity of human fesh eating; a semiotic background that carries the discussion beyond the sensible and relocates it among the symbolic forms of social construction. the amazonic cannibalism works in different levels, making possible a concrete form of build identity, a sociocosmical predation relationships and a specifc way of generate, fortify and keep the kinship and family ties.
Cuerpos, Cadáveres y Comida: Canibalismo, Comensalidad y Organización Social enla Amazonia.
Víctor Vacas Mora.
Antipoda. Revista de Antropología y Arqueología , 2008,
Abstract: Este artículo revisa briefy los debates académicos más recientes sobre la antropofagia amazónica intentar marco de esa práctica en un contexto más amplio que proporciona un sentido de la actividad de fesh humanos de comer, un fondo que lleva la semiótica de la discusión más allá de lo sensible y que se traslada entre las formas simbólicas de construcción social. Las obras canibalismo amazónico en diferentes niveles, haciendo posible una forma concreta de construcción de identidad, las relaciones de depredación sociocosmical y una forma specifc de generar, fortalecer y mantener el parentesco y los lazos familiares.
Petrus Van Musschenbroek y la física experimental del siglo XVIII
Guijarro Mora, Víctor
Asclepio : Revista de Historia de la Medicina y de la Ciencia , 2001,
Abstract: The paper deals with the meaning and scope of Eigtheenth-century experimental physics. In particular, it is focused on anlysing the price role played by the different type of experiments considered among the strict experimental physicists. On the other hand, the paper is intended to account for one of the basic principles of these natural philosophers: the rejection of mathematics, especially the geometrical approach to nature. El artículo se centra en el estudio del significado y alcance de la física experimental en el siglo XVIII. En particular, se analiza el papel preciso que desempe aron los diferentes tipos de experimentos planteados dentro de esta concepción de los fenómenos naturales así como la importancia que el rechazo de las matemáticas (en especial la geometría) tuvo entre los físicos experimentales en sentido estricto.
Determinación fisicoquímica y bacteriológica del agua en las etapas de tratamiento en planta de potabilización
Mora,Víctor; Cede?o,Jorge;
Universidad, Ciencia y Tecnología , 2006,
Abstract: the purpose of this research was to determine if water is physicochemically and bacteriologically drinkable and corrosive in the treatment stages for raw, settled and filtered water at the angostura plant of ciudad bolivar, bolivar state. the research was descriptive and analytical and was made by means of water sampling between the pumping station in the orinoco river and the rapid mixture in the plant. samples were analyzed according to the standard method and the total number of bacillus coli (bc) was determined through the fermentation technique in multiple tubes. the results obtained for dissolved solids, co2, alkalinity, hardness, calcium, magnesium, chloride, sulfate and nitrate are in the range of acceptable values. however, the ph and mg/l of aluminum for settled and filtered samples are out of the limit values of the quality standards for drinkable water. the decrease of fecal bacillus coli in settled water samples and their absence in filtered samples, allows for water potability to be within the acceptable scale. the dosage of coagulant and the mixing mechanisms operate inadequately causing chemical instability with tendency to corrosion.
Logarithm of a Function, a Well-Posed Inverse Problem  [PDF]
Silvia Reyes Mora, Víctor A. Cruz Barriguete, Denisse Guzmán Aguilar
American Journal of Computational Mathematics (AJCM) , 2014, DOI: 10.4236/ajcm.2014.41001

It poses the inverse problem that consists in finding the logarithm of a function. It shows that when the function is holomorphic in a simply connected domain , the solution at the inverse problem exists and is unique if a branch of the logarithm is fixed. In addition, its demonstrated that when the function is continuous in a domain , where is Hausdorff space and connected by paths. The solution of the problem exists and is unique if a branch of the logarithm is fixed and is stable; for what in this case, the inverse problem turns out to be well-posed.

Huaquín Mora,Víctor R; Loaíza Herrera,Renato;
Estudios pedagógicos (Valdivia) , 2004, DOI: 10.4067/S0718-07052004000100003
Abstract: to examine the levels of academic demands and their stressor consequences is one of the main objectives of this work. in order to do this, twenty four university careers corresponding to two chilean universities were evaluated: universidad austral de chile (uach) and the universidad de santiago de chile (usach). a total sample of 1.334 students was used for the study. this article focuses its attention on the four uach's medicine careers, using a sample of 225 students. in a comparative analysis of the twenty four careers analyzed as a whole, the uach's medicine faculty achieved the highest grades according to the evaluation made by the students of their respective curricular system. the measuring instrument contains a test battery for cognitive evaluations and curricular stress. this partial result coincides with the total result of the sample. in this way, the inverse relationship between the high level of academic demands and the corresponding low level of stress, and vice-versa, is confirmed. the uach's medicine faculty careers show high demand levels with moderately high stress levels. in particular, the evaluations of personal situations reflect a high self esteem, accompanied with moderately low stress levels. in relation to the ideal idea of what is supposed to be a good curricular system, the students expect high demand levels, showing moderate stressor consequences. these expectations are similar to the rest of the evaluated careers of both universities.
Caballero,Víctor; Parra,Mauricio; Mora Bohorquez,Andrés Roberto;
Boletin de Geología , 2010,
Abstract: associated to the colombian andes uplift, the present day middle magdalena valley basin resulted from the fragmentation of an ancestral foreland basin associated first to the central cordillera and then to the uplift by tectonic inversion of the oriental cordillera. to constrain the initial uplift of the oriental cordillera a study of paleocurrent directions, sediment provenance and facies distribution on the cenozoic units of the e part of the middle magdalena valley basin was conducted. a drastic change in the paleocurrent directions was founded from n ne and e se in the la paz and esmeraldas formations (late eocene), toward w nw in the mugrosa formation (early oligocene), which maintains in the overlying neogene units. petrography data indicates at least two sediment source areas, one contributing to the la paz and esmeraldas formations, the other to the mugrosa and colorado formations and both supplied sediment to the real formation. the analysis of all this outcrop data and information let us to propose an initial uplift of the oriental cordillera since the late eocene to early oligocene. from this finding we can infer deformation and oil trap configuration until at least the eocene time in the colombia middle magdalena basin.
Valuación de corrosión e incrustaciones en instalaciones hidráulicas de una planta de potabilización en el estado Bolívar, Venezuela
Mora Arellano,Víctor; Cede?o,Jorge Luis;
Boletín de Malariología y Salud Ambiental , 2006,
Abstract: corrosion in metallic materials (valves, pumps and pipes) and rigid elements (reinforced concrete) are seen as being susceptible to destructive attack and as an important factor during the life of the infrastructure. given this situation, the object was to carry out an evaluation of corrosion and encrustation of the hydraulic facilities of the water treatment plant ?angostura? in bolivar city, bolivar state. the investigation was of the descriptive and analytic type: 16 photographs of metal and rigid elements with corrosion and encrustation flaws were obtained for carrying out a qualitative description. conditions in corrosions and incrustations were estimated considering the deterioration both in unitary segments of the hydraulic system and the probability of operation in metallic and rigid components. the conclusion was that the observed results were caused by atmospheric elements, water (hard, settled and leaked), and by chemical reactions (aluminum sulfate, hydrated lime, and chlorine gas) used in the process. the results of softening, chipping and disintegration in the reinforced concrete are the multifactorial results of the processes of carbonation, influences of the chloride ion, and biological oxidization. the maximum unitary deterioration in rigid specimens was 3.4% per year and in the metallic specimens 3.26%. the greater probability of operation for the rigid elements was placed at 109.24 years and for the metallic elements at 81.15 years.
Diagnóstico del sistema de recolección de desechos generados en el Hospital Ruiz y Páez, Ciudad Bolívar, estado Bolívar, Venezuela
Rodríguez,Glacelidys; Mago,Neil; Mora Arellano,Víctor;
Boletín de Malariología y Salud Ambiental , 2006,
Abstract: inadequate handling of solid waste coming from hospital facilities is considered as one of the principal occupational risk factors because of the infectious nature of some components and the presence of sharps waste. for this reason, the present analytic and descriptive investigation has as its goal the diagnosis of current waste management in the ruiz y páez hospital, bolívar state, venezuela. through random inspections carried at the different hospital service areas referred to, the implementation of a survey of cleaners and assistance personal was carried and photos taken. it was demonstrated that 79.19% of the decree 2,218 ?rules for classification and waste handling coming from health establishments? was not complied with and that 100% of the questioned personal had not received training for the management of dangerous and infectious waste. in 2004-2005 31 occupational accidents with sharps objects were reported. from the information obtained, it is necessary to institute a new system of collection and final disposal of the medical waste generated. for the establishment and achievement of this system, all the hospital community must be involved and trained.
In vitro antimalarial activity of extracts of some plants from a biological reserve in Costa Rica
Misael Chinchilla,Idalia Valerio,Ronald Sánchez,Víctor Mora
Revista de Biología Tropical , 2012,
Abstract: Treatment with the usual antimalarial drugs, have induced parasite resistance, reinforcing the need to finding natural antimalarial components that would be found on plants from the forest. Therefore, we decided to look for these components in Costa Rican plants from a protected forest area. Fresh and dry extracts of roots, bark, leaves, flowers and fruits of 25 plants from a biological reserve in Costa Rica, Reserva Biológica Alberto Manuel Brenes (REBAMB), were studied in vitro for the presence of substances with antimalarial activity. By studying the inhibition of P. berghei schizogony, we assessed the antimalarial activity of several plant extracts: Aphelandra aurantiaca, A. tridentata (Acanthaceae); Xanthosoma undipes (Araceae); Iriartea deltoidea (Arecaceae); Neurolaena lobata (Asteraceae); Senna papillosa, Pterocarpus hayessi, Lonchocarpus pentaphyllus (Fabaceae); Nectandra membranacea, Persea povedae, Cinamomum chavarrianum (Lauraceae); Hampea appendiculata (Malvaceae); Ruagea glabra, Guarea glabra (Meliaceae); Psidium guajava (Myrtaceae); Bocconia frutescens (Papaveraceae); Piper friedrichsthalii (Piperaceae); Clematis dioica (Ranunculaceae); Prunus annularis (Rosaceae); Siparuna thecaphora (Siparunaceae); Solanum arboreum, Witheringia solanácea (Solanaceae); Ticodendrum incognitum (Ticodendraceae); Heliocarpus appendiculatus (Tiliaceae) and Myriocarpa longipes (Urticaceae). We used different parts of the plants as well as fresh and dried extracts for testing IC50. The solid content of the extracts ranged from 1-71.9μg/mL. The fresh extracts showed stronger activity than the dry ones. Since the plants showing the strongest antimalarial activity are very common in Central America, and some similar genera of these plants have shown positives results in South America, we considered important to present these findings for discussion. On the other hand, this is the first systematic study of this kind ever realized in a circumscribed and protected area of Costa Rica. Rev. Biol. Trop. 60 (2): 881-891. Epub 2012 June 01. El tratamiento con las drogas antimaláricas de uso común han inducido resistencia por parte del parásito, lo que obliga a buscar en las plantas de los bosques, componentes naturales con actividad en contra de esta enfermedad. Por lo tanto, decidimos buscar dichos componentes en plantas de una Reserva Forestal de Costa Rica. Extractos tanto frescos como secos de raíz, corteza, hojas, flores y frutos, de 25 plantas de la Reserva Biológica Alberto Manuel Brenes (REBAMB), fueron estudiados in vitro en busca de sustancias con actividad antim
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