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Search Results: 1 - 10 of 63417 matches for " Ariadna Crisantema Martínez Hernández "
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Memoria Prospectiva: Contexto y Calidad de Compromiso en una Situación de Recuerdo Libre Memoria Prospectiva: Contexto y Calidad de Compromiso en una Situación de Recuerdo Libre
Ariadna Crisantema Martínez Hernández,Martha Guevara Sanginés
Acta Universitaria , 2012,
Abstract: The memory processes, including recall, are influenced by the objective and logical structure of knowledge, as well as by subjective and motivational aspects. The frequency and distribution of units in a free recall task provide information about the organization of memory and the accesibility of material. The objective of this work was to investigate prospective memory as a function of personality (i. e. selfregulation), goal′s commitment quality (i. e. obligation, intention and desire) and context for which they are generated (i. e. labor and not-labor). Two instruments for free recall of goals were developed and were applied along with Action Control Scale to 70 hotel employees. The results indicate that the self-regulatory tendency, the quality of commitment and the context influence in the amount and structure of remembered goals. Los procesos de memoria, incluido el recuerdo, son influidos tanto por la estructura objetiva y lógica del conocimiento, como por aspectos subjetivos y motivacionales. La frecuencia y distribución de unidades en una tarea de recuerdo libre arrojan datos sobre la organización de la memoria y sobre la accesibilidad del material. En este trabajo se investigó la memoria prospectiva como función de la personalidad (i.e. tendencia autorregulatoria), de la calidad de compromiso de las metas (i.e. obligación, plan y deseo) y del contexto para el cual se generan (laboral y no-laboral). Se desarrollaron dos instrumentos de recuerdo libre de metas; mismos que fueron aplicados junto con la Escala de Control de la Acción a 70 empleados de un hotel. Los resultados indican que la tendencia autorregulatoria, la calidad de compromiso y el contexto influyen en la cantidad y la estructura de las metas recordadas.
From Public Policy to Equity and the Constitution. Are Mexican Women Still Invisible?  [PDF]
Nancy Guzmán-Raya, Martha Leticia Guevara-Sanginés, Ariadna Crisantema Martínez-Hernández
Open Journal of Social Sciences (JSS) , 2019, DOI: 10.4236/jss.2019.76017
Abstract: In Mexico, the political and social rights of women have been acquired slowly and in a limited way; this is a sign of their invisibility. Some rights such as voting and running for election, education and work are all signs of progress. However, in practice, the visibility of Mexican women has been limited to their reproductive, family and domestic functions. This is reflected from the legal aspect—where constitutionally it has taken time to be recognized as citizens—to daily life, as their possibility of choice in educational opportunities, work and personal decisions such as motherhood. Through documentary review, a historical study of Mexican public policies and associated sociopolitical events is made, where it is observed that in each of the six years of the Government, women have taken steps to achieve this visibility, yet, conditions of inequality still continue from the conception of public policy to its implementation as government programs. They continue to highlight policies that target women in a role of mother and caregiver, and socially restrict their power in areas of public and private leadership that limit them in terms of work. Currently the feminine effort is directed to the change of social thought on the roles assigned in public policies through the acquisition of equity and justice.
Consumo de Drogas en Estudiantes del Nivel Medio Superior de la Universidad de Guanajuato Consumo de Drogas en Estudiantes del Nivel Medio Superior de la Universidad de Guanajuato
Ana- María Chávez-Hernández,Luis-Fernando Macías-García,Daniel Páramo-Castillo,Crisantema Martínez Hernández
Acta Universitaria , 2012,
Abstract: Drug abuse is a public health world wide problem of, and Guanajuato’s University High School students are not exempt from this phenomenon. This study evaluated the prevalence in usage of several drugs, alcohol and tobacco, the associated psychosocial factors and the differences by sexes. The “Questionnaire for students 2002” was applied to 2 532 high school students (ranging from 13 to 22 yearsold). It was found that 14.2 % of the sample has used illegal drugs; the drugs mostly used were tranquilizers, marijuana and cocaine. In our sample, the drug consume (legal and illegal drugs) prevalences howed higher rate than the national reported. Family Influence and personal beliefs were detected as a consume protection factor. Differences by sexes about particular drugs use and the beliefs about them were found. In view of the results deeper studies are necessary. El consumo de drogas es un problema de salud pública a nivel mundial y los estudiantes del nivel medio superior de la Universidad de Guanajuato no están exentos de éste fenómeno. El presente estudio evaluó la prevalencia del consumo de varias drogas, alcohol y tabaco, los factores psicosociales asociados y las diferencias de éstos por sexo. Se aplicó el “Cuestionario de estudiantes 2002” a 2 532 alumnos (rango de edad 13 a 22 a os). Entre los resultados se encontró que el 14.2 % de la muestra ha consumido alguna droga ilegal alguna vez en su vida; las drogas más utilizadas son tranquilizantes, marihuana y cocaína. La prevalencia de consumo de drogas presentó índices superiores a los reportados nacionalmente. Fue detectada la influencia de la familia y de las creencias personales como factores protectores o de riesgo del consumo. Además, hubieron diferencias entre hombres y mujeres respecto a las drogas usadas y en las creencias sobre las mismas, entre otras. Ante un porcentaje de consumo tan elevado se vuelve necesario profundizar más en el tema.
Efecto de diferentes niveles de proteína y lípidos totales en la dieta sobre el crecimiento y supervivencia de juveniles de pargo lunarejo Lutjanus guttatus
Abdo de la Parra,Ma. Isabel; Rodríguez-Ibarra,L. Estela; Hernández,Crisantema; Hernández,Karina; González-Rodríguez,Blanca; Martínez-Rodríguez,Irma; García-Ortega,Armando;
Revista de biología marina y oceanografía , 2010, DOI: 10.4067/S0718-19572010000300008
Abstract: the spotted rose snapper (lutjanus guttatus) is one of the most commercially important fish species in méxico. as it is considered a suitable candidate for culture, then it is necessary to identify its nutritional requirements in order to succeed. the aim of this study was to evaluate the effects of different protein and lipid levels on growth and survival of juvenile spotted rose snappers. nine semi-purified diets were formulated with three protein levels (40, 45 and 50%) and three lipid levels (9, 12 and 15%). hatchery-produced juvenile spotted rose snappers (2.2 ± 0.1 g) were used throughout the eight-week feeding experiment. body weight, specific growth rate, condition factor, feed consumption, feed conversion rate, and survival were determined in each treatment at the end of the experiment. the highest weight gained and better feed conversion ratio were obtained in fish fed diets with 45 and 50% protein and their three lipids levels. survival, feed consumption and condition factor were not affected by the treatments. these results indicate that juvenile spotted rose snappers require a minimum of 45% protein and 9% lipid for maximum growth and survival.
Problemas clínicos durante el mantenimiento del donante potencial de órganos Clinical problems during the maintenance of potential organ-donors
Omar Martínez Mompeller,Ariadna García Rodríguez,Alina Breijo Puentes,Juan A Prieto Hernández
Revista de Ciencias M??dicas de Pinar del R?-o , 2004,
Abstract: Se realizó un estudio descriptivo y retrospectivo de los donantes de órganos para trasplantes en el Hospital Abel Santamaría Cuadrado de Pinar del Río en el período comprendido entre enero del 2000 y diciembre del 2003 para conocer los principales problemas durante el mantenimiento de los 23 donantes reales. Hubo un incremento del número de casos con el transcurso de los a os. El trauma cráneo encefálico fue la causa principal de muerte encefálica. La hipotensión arterial y las arritmias fueron los eventos hemodinámicos más reportados. Los disturbios hidroelectrolíticos más relevantes fueron la hipopotasemia y la hipernatremia. La alcalosis mixta fue la alteración del equilibrio ácido - básico de mayor incidencia. La hipotermia, la poliuria y la hiperglicemia constituyeron otras alteraciones también presentes. Demostramos la importancia de un estrecho seguimiento del donante para prevenir y/o tratar los problemas clínicos que se presentan en este tipo de paciente. La información recogida fue procesada y analizada con la utilización de frecuencias absolutas y porcentajes, los resultados obtenidos se mostraron en tablas para una mejor comprensión de los mismos permitiéndonos arribar a conclusiones finales y hacer recomendaciones pertinentes. A descriptive and retrospective study on donors of organs for transplantations was performed at Abel Santamaría Hospital in Pinar del Río in the period of January 2000 and December 2003 aimed at assessing the most significant disorders during the management of 23 potential donors. There was an increase in the number in cases in years. Cranioencephalic trauma was the main cause of encephalic death. Hypotension and dysrrythmias were the most relevant hemodynamic disorders as well as electrolyte imbalance (hypokalemia and hypernatremia); mixed alkalosis was the most significant disorder of the acid-base balance, hypothermia, polyuria and hyperglycemia were other present disorders. The importance of a close follow-up of the donors to prevent and/or manage clinical disorders of these kinds of patients was shown. The information recorded was processed and analyzed using absolute frequencies and percentages, the results obtained were registered in tables in order to understand conclusions and recommendations.
Problemas clínicos durante el mantenimiento del donante potencial de órganos
Martínez Mompeller,Omar; García Rodríguez,Ariadna; Breijo Puentes,Alina; Prieto Hernández,Juan A; Ceballo Morejón,Yosbel; Martínez Fabregas,Armando;
Revista de Ciencias M??dicas de Pinar del R?-o , 2004,
Abstract: a descriptive and retrospective study on donors of organs for transplantations was performed at abel santamaría hospital in pinar del río in the period of january 2000 and december 2003 aimed at assessing the most significant disorders during the management of 23 potential donors. there was an increase in the number in cases in years. cranioencephalic trauma was the main cause of encephalic death. hypotension and dysrrythmias were the most relevant hemodynamic disorders as well as electrolyte imbalance (hypokalemia and hypernatremia); mixed alkalosis was the most significant disorder of the acid-base balance, hypothermia, polyuria and hyperglycemia were other present disorders. the importance of a close follow-up of the donors to prevent and/or manage clinical disorders of these kinds of patients was shown. the information recorded was processed and analyzed using absolute frequencies and percentages, the results obtained were registered in tables in order to understand conclusions and recommendations.
Efecto de la temperatura y salinidad del agua en la incubación de huevos de botete diana Sphoeroides annulatus
Abdo-de la Parra,Ma. Isabel; Martínez-Rodríguez,Irma E; González-Rodríguez,Blanca; Rodríguez-Ibarra,L. Estela; Duncan,Neil; Hernández,Crisantema;
Revista de biología marina y oceanografía , 2012, DOI: 10.4067/S0718-19572012000100014
Abstract: the effects of different water temperatures (22, 25, 28 and 31oc) and salinities between 0 and 60 psu (with intervals of 5 psu) on egg incubation of the bullseye puffer (sphoeroides annulatus) were evaluated in this study. the embryos could not develop at 22oc and the highest hatching rate for normal larvae was observed at 28oc. at 0, 50, 55 and 60 psu larvae were unable to develop. highest hatching rates were obtained at 25, 30 and 35 psu. it was concluded that water temperature and salinity affects the incubation period, embryo development stage and larval survival of the bullseye puffer.
Use of PIXE analysis to study urban atmospheric aerosols from downtown Havana City
Pérez Zayas,Grizel; Pi?era Hernández,Ibrahin; Ramos Aruca,Maridelin; Guibert Gal,Rolando; Molina Esquivel,Enrique; Martínez Varona,Miriam; Fernández Arocha,Ariadna; Aldape Ugald,Francisca; Flores Maldonado,Javier;
Nucleus , 2009,
Abstract: abstract the present work shows the results of a first study aimed at determining the elemental composition in airborne particulate matter (in fine and coarse particle size fractions). it was collected at the atmospheric monitoring station in the municipality of centro habana, using the particle induced xray emission (pixe) technique. at present, there is no information available about elemental contents in airborne particulate matter from this region. for this study, we carried out a sampling campaign during five months (november 14, 2006 to april 19, 2007). the samples were collected every second day during 24 h under an air flux of 20 l/min. the air sampler used was a gent sampler equipped with a stacked filter unit (sfu) system which allows the aerosol collection in both size fractions simultaneously. a total of 144 aerosol samples were collected (72 correspond to the fine mass particle and 72 to the coarse mass particle). for pixe analysis, the samples were irradiated by 2.0 mev energy protons from the 2 mv tandetron accelerator from the laboratory of pixe analysis at inin, mexico. a total of 14 elements (s, cl, k, ca, ti, v, cr, mn, fe, ni, cu, zn, br and pb) were consistently detected in both of particle size fractions with minimum detection limits in the range of 1-10 ng/ . the quantitative results obtained from pixe elemental analysis for mass of particles in both fractions have revealed important information that has been used in a first attempt to understand and characterize the atmospheric pollution in this area. a general discussion about these results is presented in this paper.
Los aneurismas de la aorta torácica y su enfoque terapéutico
Martínez Hernández, Humberto;
Archivos de cardiología de México , 2006,
Abstract: the aorta was saw has a tube who transport blood from the heart to all the human economy, today we see the aorta like an specific organ who not only is design to transport the blood and it is elements, the aorta also produce hormones and elements of the inflammatory responds and control the systemic pressure. that's why the aorta has it specific illness. in the entire world the pathology of the aorta is quite frequent with the appearance of a lot of new cases and occupies a predominant place in the general mortality of countries like united states of america, japan or brazil. this pathology needs the utilization of large amounts of economics, human and structural resources. in mexico do not have the statistical information of the aortic illness because it is few diagnosed, and when induce death it confusing to another diseases. in the present time with the new no invasive diagnostic methods more approachable to the general population this disease is easier to diagnose. that is why he need to develop a multidisciplinary specialize group who can make the diagnosed and do the specific treatment for these disease.
Evaluación de procesos en Escuelas Técnicas desde una Pedagogía de la práctica
Martínez Hernández,Leonardo;
Paradígma , 2008,
Abstract: four processes should be present in schools that adopted a pedagogy of practice (critical, based on constructivism) they are: problem development, empowerment, evaluation and integration. an instrument was built to evaluate to what extent pedagogy of practice has been adopted in agricultural schools. 22 agricultural technology teachers reacted and their responses were confronted with experience, interviews, previous instrument discussions and other observations. teachers claimed they have the competences requested by the instrument, but some responses were not aligned with observed reality. some competences were identified as not available on teacher?s experiences. at the end, researchers are invited to explore pedagogy of practice as presented in these four processes.
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