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Search Results: 1 - 10 of 23013 matches for " Andrea; Troncoso Q "
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FACTORES SOCIALES QUE CONDICIONAN LA ASISTENCIA DE MUJERES A LA CONSULTA NUTRICIONAL
Troncoso P,Claudia; Astudillo O,Andrea; Troncoso Q,Grace;
Revista chilena de nutrición , 2011, DOI: 10.4067/S0717-75182011000100001
Abstract: nutritional consultation is one of the main professional activities of a nutritionist. the research was developed based on this activity, also considering the motivations presented by a group of women who were not referred to a consultation by a treating physician. the primary objective of the study is to interpret the social factors that condition the attendance of cesfam lagunillas users in coronel, (bio-bio region), to a nutritional consultation during the first semester of 2009. in order to achieve the primary objective, a qualitative phenomenological-type study was used as an investigative design. information was collected through structured interviews with 17 women who met the selection criteria, that is to say, the total sample size determined through theoretical saturation. the greatest motivation presented by women who were interviewed about the attendance to a nutritionist consultation was their body image. some social influences were also identified in this decision specially related to their families. regarding this influences, they mentioned their partners and sometimes their mothers. friends, means of communication, and the public opinion were also identified as an influence in their decision of attending to a nutritionist consultation. in conclusion, family is the greatest formal institution that conditions and directly influences the decision made by its members in attending a nutritional consultation.
FACTORES SOCIALES QUE CONDICIONAN LA ASISTENCIA DE MUJERES A LA CONSULTA NUTRICIONAL SOCIAL FACTORS THAT CONDITION WOMEN'S ATTENDANCE TO NUTRITIONAL CONSULTATION
Claudia Troncoso P,Andrea Astudillo O,Grace Troncoso Q
Revista Chilena de Nutricíon , 2011,
Abstract: La consulta nutricional es una de las actividades propias del quehacer profesional del nutricionista. Las motivaciones que presentan un grupo de mujeres que no fueron derivadas por médico tratante originó esta investigación, que tenía como objetivo el interpretar los factores sociales que condicionan la asistencia de usuarias del CESFAM Lagunillas de la comuna de Coronel, región del Bío-Bío a la consulta realizada por nutricionista durante el primer semestre del a o 2009. Para lograr esta meta, se utilizó como dise o investigativo un estudio cualitativo de tipo fenomenológico. La obtención de la información se realizó a través de una entrevista estructurada a 17 mujeres que cumplían con los criterios de selección del estudio, correspondiendo al total de la muestra obtenida a través del punto de saturación. La imagen corporal es la mayor motivación que presentan las mujeres entrevistadas para asistir a la consulta nutricional. Se presentan influencias sociales en esta decisión, en especial las referidas a sus familias, en el que se identifican a sus parejas y en algunas instancias a las madres. Los amigos, los medios de comunicación o la opinión externa social también son identificados como influyentes en su decisión de asistir con el nutricionista a su consulta. Se concluye que la familia es la mayor institución formal que condiciona e influye directamente en las decisiones de sus miembros en diversas actividades, como es, la asistencia a la consulta nutricional. Nutritional consultation is one of the main professional activities of a nutritionist. The research was developed based on this activity, also considering the motivations presented by a group of women who were not referred to a consultation by a treating physician. The primary objective of the study is to interpret the social factors that condition the attendance of CESFAM Lagunillas users in Coronel, (Bio-Bio Region), to a nutritional consultation during the first semester of 2009. In order to achieve the primary objective, a qualitative phenomenological-type study was used as an investigative design. Information was collected through structured interviews with 17 women who met the selection criteria, that is to say, the total sample size determined through theoretical saturation. The greatest motivation presented by women who were interviewed about the attendance to a nutritionist consultation was their body image. Some social influences were also identified in this decision specially related to their families. Regarding this influences, they mentioned their partners and sometimes their mothe
La radiación a la mesa
Rossi,Laura; Watson,Dana; Escandarani,Soledad; Miranda,Andrea; Troncoso,Alcides;
Revista chilena de infectología , 2009, DOI: 10.4067/S0716-10182009000500003
Abstract: zero tolerance to bacterial contamination means considering the acceptance of "radiation on the table". the process of food irradiation has been extensively studied, nevertheless its use remains a matter of some controversy. despite unanimous agreement within the medical community of the safety of this procedure, occasional concerns arise from the consumers. acommon consumer misconception is that irradiationmay turn the food "radioactive". a significant number of scientific studies on the topic were analyzed. we found no scientific study demonstrating that consumption of irradiated food might pose a risk to consumers. all studies conclude that food irradiation at the appropriate dose required to reduce contamination is safe and does not affect its nutritional valué. in order to emphasize the issue we discuss the potential benefit vs harm of irradiation of food contaminated with e. coli 0157: h7. the association of this bacteria with severe disease and death has been clearly established in contrast with the lack of a demonstrated risk due to meat irradiation. we conclude that the risks of food irradiation remains "unknown" simply because, after four decades of research, none has been identified. in contrast to the risks of acquiring a food transmitted bacterial disease, the risk of irradiation is negligible.
Rare K decays in a model of quark and lepton masses
P. Q. Hung,Andrea Soddu
Physics , 2001, DOI: 10.1103/PhysRevD.65.054035
Abstract: An extension of a model of neutrino masses to the quark sector provides an interesting link between these two sectors. A parameter which is important to describe neutrino oscillations and masses is found to be a crucial one appearing in various ``penguin'' operators, in particular the so-called Z penguin. This parameter is severely constrained by the rare decay process $K_{L} \to \mu^{+} \mu^{-}$. This in turn has interesting implications on the decay rates of other rare processes such as $K_{L} \to \mu e$, etc..., as well as on the masses of the neutrinos and the masses of the vector-like quarks and leptons which appear in our model.
Determinación de frecuencia cardiaca, frecuencia respiratoria, lactato deshidrogenasa, creatinkinasa y ácido láctico en caballos durante competencia de salto en la Sabana de Bogotá
Guerrero Nieto,Paula Andrea; Portocarrero Aya,Luisa; Mutis Barreto,Claudia Aixa; Ramírez Troncoso,Jorge;
Revista de Medicina Veterinaria , 2009,
Abstract: preliminary investigation results in physiological traits and changes due to exercise (horse jumping competition) in equines in colombia are presented. 24 horses were selected (silla argentina, psi and crossbred) at the national army cavalry school, where cardiac and respiratory rate, creatinkinase (ck), lactic dehydrogenase (ldh) and lactic acid were monitored. horses jumped obstacles of 1.10 to 1.20 m, and samples were taken before, immediately after and six hours following exercise. cardiac rate was determined using a polar s625 cardiac monitor; for respiratory rate, stethoscopes and blood samples were analyzed by spectophotometric methods. for muscle enzymes and lactic acid, statistic analysis (anava) was carried out and for cardiac and respiratory rates descriptive statistics were performed. results showed that lactic acid and creatinkinase had a notorious change with exercise, while lactic dehydrogenase had no alteration. cardiac and respiratory rate had a significant increase after exercise, but return to normal in the next six hours. lactic acid increased in a significant way and return to normal six hours after, unlike what other authors have reported. the research shows that changes are maybe due to type and time of exercise or altitude. further research is necessary to complement topic related studies.
Como saber se as conven??es internacionais de meio ambiente realmente funcionam? abordagens teórico-metodológicas sobre a eficácia dos regimes ambientais
Steiner, Andrea Q;Medeiros, Marcelo de Almeida;
Contexto Internacional , 2010, DOI: 10.1590/S0102-85292010000200012
Abstract: the last decades were marked by the large amount of transborder environmental problems and, consequently, the increase in the number of related international regimes. however, the creation of a regime per se does not guarantee that it be implemented nor that its objectives be fully attained, much less that the issue be solved. this fact has been stimulating an interesting debate: are international regimes really effective to deal with environmental issues? this article discusses the main methods of analyzing environmental regime effectiveness. for that purpose it presents general conceptual issues related to regime effectiveness, discusses the main questions and specific methodological needs in the specific case of international environmental policy, analyses its most important findings, and focuses on the factors that contribute to effectiveness.
EL ESTRéS AGUDO INTERFIERE CON LA EVOCACIóN Y PROMUEVE LA EXTINCIóN DE LA MEMORIA ESPACIAL EN EL LABERINTO DE BARNES
Troncoso Julieta
Acta Biológica Colombiana , 2010,
Abstract: Para evaluar los efectos del estrés agudo sobre la recuperación y la extinción de la memoria espacial, se utilizaron ratas entrenadas en el laberinto circular de Barnes. El entrenamiento consistió de 8 ensayos de adquisición (intervalo entre ensayos, IEE, de 5 min) en donde los animales debían aprender a encontrar una caja meta ubicada en uno de los 18 agujeros del laberinto. Todos los animales adquirieron el aprendizaje espacial, ya que invirtieron menos tiempo en encontrar la caja meta y cometieron menos errores a medida que se sucedían los ensayos de entrenamiento. Veinticuatro horas después del entrenamiento se evaluó la retención y extinción del aprendizaje espacial mediante una prueba con caja meta (PCC) seguida de siete pruebas sin caja (PSC), con un IEE de 5 min. Una hora y media antes de la sesión de evaluación de la memoria un grupo de animales fue sometido a estrés por restricción de movimientos durante una hora, permitiéndoles un período de recuperación de 30 min y otro grupo permaneció en su caja hogar sin manipulación (control). Los resultados indican que el estrés deteriora el proceso de evocación de la memoria espacial, ya que los animales estresados cometieron un mayor número de errores y demoraron más tiempo en encontrar la caja meta durante la PCC, respecto de los controles. Además, el estrés facilita el proceso de extinción, ya que, durante las PSCs los animales estresados no mostraron una persistencia en la exploración del agujero que, en el entrenamiento, conducía a la caja meta.
Levantamento de registros dos acidentes com cnidários em algumas praias do litoral de Pernambuco (Brasil)
Neves,Ricardo F.; Amaral,Fernanda D.; Steiner,Andrea Q.;
Ciência & Saúde Coletiva , 2007, DOI: 10.1590/S1413-81232007000100026
Abstract: cnidarians are among the most venomous organisms known to man. they are characterized by stinging cells called cnidocytes, and several species, such as the portuguese-man-of-war and the jellyfish, can cause harm to human beings. despite not attracting () much attention on the brazilian coast, the studies that have been carried out to date show that the occurrence of this kind of accident is significant. the aim of this study was to survey cnidarian related accidents with beach goers on some beaches of the state of pernambuco, as well as to investigate the knowledge of relevant professions on this theme. () archives of hospitals and life guard posts were visited for the survey, and 17 professionals were interviewed. during the visits, records were obtained for a total of 35 accidents at boa viagem beach (recife) over a two-year period, as well as informal records of an average of four to five cases a week at piedade beach and an average of two to three cases a week for pontas de pedras beach. as to the knowledge of the professionals interviewed, most answers agree, in general, with the literature available, despite a certain level of inadequate or insufficient information on the theme.
Regulation of spindle orientation and neural stem cell fate in the Drosophila optic lobe
Boris Egger, Jason Q Boone, Naomi R Stevens, Andrea H Brand, Chris Q Doe
Neural Development , 2007, DOI: 10.1186/1749-8104-2-1
Abstract: Here we investigate the relationship between neural progenitor identity and spindle positioning in the Drosophila optic lobe. We use molecular markers and live imaging to show that there are two populations of progenitors in the optic lobe: symmetrically dividing neuroepithelial cells and asymmetrically dividing neuroblasts. We use genetically marked single cell clones to show that neuroepithelial cells give rise to neuroblasts. To determine if a change in spindle orientation can trigger a neuroepithelial to neuroblast transition, we force neuroepithelial cells to divide along their apical/basal axis by misexpressing Inscuteable. We find that this does not induce neuroblasts, nor does it promote premature neuronal differentiation.We show that symmetrically dividing neuroepithelial cells give rise to asymmetrically dividing neuroblasts in the optic lobe, and that regulation of spindle orientation and division symmetry is a consequence of cell type specification, rather than a mechanism for generating cell type diversity.The division modes of stem cells are tightly regulated during development and adult tissue homeostasis. This ensures that tissues and organ systems develop to the correct size and contain the correct cell types for proper function. One way to expand the pool of stem or progenitor cells during development is to undergo symmetric cell division. Conversely, one way to generate differentiating cell types, while maintaining a constant stem/progenitor population, is to undergo asymmetric cell division where one daughter differentiates and the other remains a stem cell [1]. Recently, it has been suggested that the ratio of stem/progenitor cells to differentiating cells in a tissue can be regulated by changing spindle orientation, thereby altering the proportion of symmetric to asymmetric cell divisions. For example, it has been proposed that mammalian neuroepithelial cells first expand via symmetric divisions, followed by a burst of neuron production resulti
EXCRECIóN URINARIA DE ISOFLAVONAS EN ADULTOS MAYORES DE 65 A?OS QUE CONSUMEN UN ALIMENTO FUNCIONAL
Lutz R,Mariane; Segura Q,Verónica; Cruz V,Andrea; López O,Andrea;
Revista chilena de nutrición , 2009, DOI: 10.4067/S0717-75182009000400006
Abstract: functional foods (ff) are aimed to exert beneficial health effects. the isoflavones daidzein and genistein are bioactive phytoestrogens that may act as functional food ingredients. this study measured urinary excretion of these isoflavones contained in a powdered novel ff oriented to the elderly population, ready to consume as such or included into culinary preparations. the ingredients containing isoflavones were soybean flour, soybean protein (glycine max l) and red clover extract (trifolium pratense l). the study involved 30 volunteers of both sexes, 60 to 75 years old, who consumed 50 g of ff (n=16) or placebo food without isoflavones (n=14). the 24-hour urinary excretion of genistein and daidzein were determined before and after the intake of the mentioned foods by hplc with diode array detector. the 24-h urinary concentration of genistein was 2.06+1.41 ppm and the daidzein concentration was 8.80 ±4.55 ppm. none of the individuals in the placebo group exhibited detectable amounts of isoflavones in urine. the study demonstrates that both phytoestrogens contained in the ff are bioavailable, first step to confirm their ability to exert bioactive effects. the study opens the possibility to verify the effects of both isoflavones to reduce risk factors of non transmissible chronically diseases.
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