Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Search Results: 1 - 10 of 3000 matches for " DUCUARA MORA "
All listed articles are free for downloading (OA Articles)
Page 1 /3000
Display every page Item
Consideraciones sobre la inapetencia infantil y la adopción de hábitos alimentarios saludables
CES Medicina , 2011,
Abstract: to adopt healthy eating styles requires a process of teaching which involves stimulus and the examples that might generate parents and other caregivers of children, and thus, prevent inadequate food consumption and improve the acceptance of a variety of food products when these are introduced into the infant diet. it is conceived as a reasonable alternative for the adoption of healthy eating behavior begin to educate and encourage adequate food since childhood, even when the fetus is still in the womb through the mother's proper alimentation. the sensations of hunger and satiety are influenced by physiological mechanisms mediated by hormones and nervous system structures, as well as genetic factors that influence the expression of these molecular elements involved in the stimulation of the senses. in addition, nutrients and other food items, behaviors and attitudes of the family and the environment in which the individual is to be able to determine the eating patterns of children. eating behavior is a condition that is influenced by internal and external situations the individual and some of them can manage to achieve the acquisition of healthy eating habits in children. in this sense, the family and especially mothers are the once to determine the influence on the behavior and food consumption in children. for this article, we conducted a systematic review is not primarily employing electronic database isi web of knowledge.
Búsqueda de especies vegetales productoras de follaje útiles en la elaboración de arreglos florales
Sabogal Rico Astrid Johanna,Linares Castillo édgar Leonardo,Ducuara Frank
Acta Biológica Colombiana , 2006,
Abstract: En este estudio se incluyen las fases de documentación, búsqueda, determinación, propagación y evaluación de algunas especies vegetales productoras de follaje para la elaboración de arreglos florales. En la fase de campo se realizaron colecciones botánicas en diferentes municipios de Cundinamarca (Colombia), incluyendo las plazas de mercado y los jardines de la ciudad de Bogotá. Se colectó un total de 57 especies en los diferentes ambientes, de las cuales 19 correspondieron a especies nativas y 38 a especies exóticas. En la fase de laboratorio se llevó a cabo la determinación y multiplicación del material utilizando diferentes formas de propagación. De esta forma se logró el enraizamiento por esquejes de 24 especies exóticas y cuatro nativas mediante la aplicación de la hormona líquida ácido indolbutírico (IBA 3.500 ppm) + solución madre compuesta de hidróxido de sodio. La propagación por semillas se logró con una especie nativa (Dodonaea viscosa) y con una especie exótica (Zantedeschia aethiopica). La propagación por bulbos se realizó eficientemente con la especie nativa Canna generalis y con una especie de la familia Orchidaceae. Finalmente las técnicas de cultivo in vitro fueron utilizadas para la siembra y multiplicación de Zantedeschia aethiopica como una contribución a la micropropagación de aráceas útiles en el sector floricultor. Para cada una de las especies propagadas se tuvo en cuenta su porcentaje de enraizamiento, el tiempo de enraizamiento y el tiempo que tardaron en producir tallos con los parámetros de calidad previamente establecidos. Los tallos fueron sometidos a las evaluaciones de cuarto frío, viaje simulado y evaluación en florero.
An extra Z' gauge boson as a source of Higgs particles
Diaz-Cruz, J. Lorenzo;Hernandez-Lopez, Javier M.;Orduz-Ducuara, Javier A.
High Energy Physics - Phenomenology , 2013,
Abstract: Models with extra gauge bosons often require an extended Higgs sector, which contains a rich spectrum of Higgs bosons with properties that deviate from the Standard Model (SM). Such Higgs bosons could be searched using standard mechanisms similar to the SM. However, the existence of the new gauge bosons could provide new production mechanisms, which could probe the non-standard origin of the Higgs particle. In this paper we study how the Z' from a model with extra U(1)' could be used as a source of Higgs bosons. We study 3-bodies decays of the Z' into a Higgs boson and a top anti-top pair or WW pair, namely Z'\to t\bar{t} h, WW h. We find that it is possible to get {\Br'}s as high as 10^{-2} for these modes, which could be studied at future colliders. We also study the production of the Higgs bosons in association with the Z vector boson at a linear collider, through the reaction e^+ e^- \to Z, Z'\to Z+h, including both the resonant and the non-resonant effects.
Moraxella Catarrhalis en tracto respiratorio inferior
Mora Mora,Minor;
Revista Costarricense de Ciencias Médicas , 1998,
Abstract: among 1598 lower respiratory tract samples corresponding to patients admitted at the san juan de dios hospital, san josé, costa rica, between november 1996 and august 1997 (the frecuency of isolation of moraxella catarrhalis) was 4,3%. patients with chronic obstrutive pulmonary disease (copd) had a higher risk of presenting moraxella catarrhalis (p< 0,05) and those 60 or more years of age were more susceptibility to infection. antibiotic susceptible tests were performed for all the strains of moraxella catarrhalis that were obtained and they yielded ad more than 90% susceptibility to amikacin, ampicillin, cefotaxime, cephalothin and chloramphenicol . it was determined that moraxella catarrhalis is not a primary lower respiratory tract infection agent, even though the clinical history of the patient must be considered as an important guide on the isolation of this microorganism and subsequent treatment.
Moviéndose con la mente y el cuerpo: entendiendo la diferencia entre planear y realizar rutas en el espacio construido
Mora, Rodrigo;
Fractal : Revista de Psicologia , 2010, DOI: 10.1590/S1984-02922010000800011
Abstract: this paper is concerned with route behavior in people. specifically, it aims to better understand whether people follow routes planned in advance, and whether these routes are identical irrespective of the direction of travel. a total of 42 participants (27 belonging to utfsm and 15 from outside) were asked to trace routed between a pair of points in a map of the campus. after that, they were brought to these places and asked to physically navigate these routes. the main results showed that planned routes were not necessarily employed in real-world scenarios, and that people often changed routes depending on the direction of travel. these results suggest that route choice criteria are somehow dependant on contextual information.
Evaluación de los mamógrafos en Costa Rica
Acta Médica Costarricense , 2005,
Abstract: introduction: due to the increasing incidence of breast cancer in costa rican women, an evaluation of national mamographic equipment was conducted. materials and methods: from june 2002 to october 2003, 2 of the 3 global indicators of image quality were evaluated, (mean glandular dose and phantom image) in 26 mamography machines. results: the mean glandular dose found was 1.7 ± 0.60 mgy with a range of 0.8 a 2.56. regarding quality image, 73% of the evaluated equipment was able to see 4 or more fibers, 53% saw 3 or more groups of microcalcifications and 82% saw 3 or more mass groups. conclusions: all mean glandular doses were below the international reference dose value of 3 mgy. however, the analysis of phantom images showed that only 54% of all the equipment had a total score (sum of mass groups, fibers and microcalcifications) superior or equal to 10, as expected. a correct diagnosis that could eventually save the patient?s life is the main objective of a mammogram; the factors that are degrading the images must be found and it might be necessary to increase the doses to achieve this. this study demonstrates the urgent necessity to introduce permanent quality control programs that will provide excellent images with the lowest internationally recommended doses.
Optimización de la técnica radiográfica del tórax PA
Acta Médica Costarricense , 2002,
Abstract: objective: low kilovoltages (<100 kvp) to obtain chest films are commonly used in costa rica, regardless of international recommendations. this study aims to demonstrate that at higher kvps the visualization of low contrast objects is improved and that the absorbed doses are lower. methods: two chests films, one at high kvp and one at low kvp, were taken to 11 patients. at the skin of each patient, two tld-100 chips were placed to record the entrance skin doses, the chips were analyzed at the nuclear physics laboratory of the university of costa rica. using the anatomic criteria test tool 28 radiologists compared the anatomic findings for each technique. results: at higher kvps the average entrance skin doses were lower by 40% and the overall contrast of the image was decreased between 10% to 50%. the anatomic criteria test tool gave a total of 448 positive points, showing a clear preference for the high kilovoltaje technique. conclusions: the optimization of chest studies based on the ratio risk versus benefit shows that high kilovoltage techniques should be implemented in our country due to the diminution in the delivered doses and an improved visualization of the anatomy shown in the chest film according to the interpreting radiologists.
Acerca de la racionalidad y la irracionalidad de nuestras decisiones
Mora, Rodrigo;
Fractal : Revista de Psicologia , 2011, DOI: 10.1590/S1984-02922011000200013
Abstract: as its title suggests, this book postulates that human behavior is fundamentally irrational, that is, driven by emotional factors that are difficult to understand for logical mind. this irrationality is, nonetheless, neither random or subjective, but to some extent predictable and rather universal. furthermore, such irrational reasoning can be found at different levels , from the way in which people acquire small or large-scale goods (a tv set or a house respectively), to the way in which individuals make ethical decisions.
La máscara rupturista: Sobre Tres tristes tigres de Guillermo Cabrera Infante
Acta literaria , 2007, DOI: 10.4067/S0717-68482007000100004
Abstract: the aesthetics of rupture that according to octavio paz is one of the most prominent paradigms of modernity is discussed with regard to its power of fascination and seduction. we propose that the novel tres tristes tigres by the cuban writer guillermo cabrera infante is an outstanding example of an aesthetics of rupture in latin america. considering its most remarkable elements such as humor and orality, we try to question the historical and aesthetic hypotheses of what can be considered an extreme writing practice. finally, and with regard to the concept of seduction, we criticize the traditional manner of comprehending this concept as an evident will to disrupt. although it can be considered as a mask that hides in a very particular way every text desire: to attract.
Globalización, Género y Migraciones
Polis (Santiago) , 2008, DOI: 10.4067/S0718-65682008000100015
Abstract: this paper explores the transformations in contemporary migratory patterns and on their composition, as they are linked to changes in the global economy. it suggests that the high number of women migrants is related to new niches of precarious work, especially in the service sector, and that the decision over the settlement society is related to migrants' gender, which contributes to explain the feminization of south-to-south migration. it argues that the conditions of economic vulnerability of labor migrants, their gender, and their national origin, all determine processes of social exclusion in the host society, which affect their access to social benefits, social integration, and life trajectories.
Page 1 /3000
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.