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Encuesta nacional online aplicada en pacientes con enfermedad celíaca en Chile
Espino,Alberto; Castillo L,Cecilia; Guiraldes,Ernesto; Santibá?ez,Helga; Miquel,Juan Francisco;
Revista médica de Chile , 2011, DOI: 10.4067/S0034-98872011000700003
Abstract: background: celiac disease (cd) is an immune-mediated enteropathy triggered by the ingestion of gluten in genetically susceptible individuals. its prevalence in europe and the usa is 0.5 to 1%. aim: to analyze epidemiological aspects and degree of compliance with gluten-free diet (gfd) among chilean individuals with cd. material and methods: subjects with confirmed or suspected cd were invited to answer an online survey published on the web at www.fundacionconvivir.cl. the answers were reinforced with a telephone interview. results: the survey was answered by 1212 subjects (79% females). median age at diagnosis was 25.8 years (range 1 to 84 years), with a bimodal curve with two peaks at less than 3 years and at 20 to 40 years of age. the diagnosis was made only by serologic markers in 9%, only by intestinal biopsy in 17.5%, and by a combination of both methods in 70%o. conditions associated with cd were reported by 30%> of subjects and 20%> had relatives with cd. the gfd was strictly adhered to by 70%>, occasionally by 27%> and never by 3%>. seventy five percent of subjects with a strict adherence to gfd had a favorable clinical response compared with 42%> of those with incomplete or lack of adherence (odds ratio 4.0, 95%> confidence intervals 2.8-5.7p < 0.01). conclusions: in 30% of respondents, the diagnosis of cd was not confirmed according to international guidelines that require serology and duodenal biopsy. one third of subjects recognized a poor compliance with gfd. those with a strict adherence to it had a more favorable clinical course. however, 25%> did not experience a clinical improvement despite a strict gfd, a finding which requires further study.
Costo de una canasta básica de alimentos para celíacos en Chile Costs of a basic food basket for celiac patients in Chile  [cached]
Cecilia Castillo L,Cecilia Rivas C
Revista médica de Chile , 2008,
Abstract: Celiac disease requires a strict gluten free diet for life for proper recovery. This results in higher feeding costs. Aim: To analyze the cost of basic food basket (BFB) compared to a basket especially designed for celiac patients in Chile and to estimate the increment in food spending that these patients experience. Material and Methods: The cost of a daily BFB was calculated using the National Socioeconomic Characterization Enquiry (CASEN) methodology of the Ministry of Planning and the food prices delivered by the National Institute of Statistics for consumers, adjusted according to consumer prices at june 2007. To calculate the cost of the basket for celiac disease, equivalent foods without gluten were considered. Their daily and monthly values and the percentage difference between them were analyzed, by food groups and type of basket. Results: The monthly value of BFB and a basket for a celiac is, at june 2007, Ch $ 30.251 and Ch $ 57.250, respectively. This represents an increase in feeding costs for celiac patients of 89%. Conclusions: The greater cost of food without gluten represents a imitation in the budget of celiac patients
La ense anza del léxico del ELE. Resultados de una encuesta sobre la metodología aplicada en el aula
Ma Lourdes de Miguel García
MarcoELE : Revista de Didáctica , 2005,
Abstract: Este artículo evalúa la metodología aplicada en el aula relacionada con la ense anza del léxico espa ol como lengua extranjera. El estudio se llevó a cabo mediante encuestas realizadas a personal docente de varias universidades y centros privados espa oles. El análisis de los resultados nos indica que solo un tercio del profesorado aplica principios metodológicos sólidos y experimentados. Finalmente, se propone que la tarea de la ense anza y el aprendizaje del léxico sea afrontada de un modo sistemático y planificado. //// This article deals with the methodology applied in the classroom regarding the teaching of the lexis of Spanish as a foreign language. It involved an analysis and evaluation of a number of surveys completed by teaching staff from various universities and private language schools in Spain. Only one third of respondents dealt with the teaching of vocabulary in a planned and structured way. In general sound methodological and practiced principles were not applied in language classes. We conclude by suggesting that a systematic, planned approach is necessary to improve the vocabulary learning process.
Acuicultura Insostenible en Chile (Unsustainable aquaculture in Chile)  [PDF]
Sommer, Marcos
REDVET , 2009,
Abstract: ResumenLa acuicultura en Chile sólo será alternativa a la pesca si se consigue llevar su producción a parámetros de sostenibilidad, no solamente económica sino, fundamentalmente, ambiental. Con un esfuerzo dirigido hacia medidas legislativas y de control, e investigación aplicada, podríamos acercarnos a una acuicultura ambientalmente sostenible.
Celiac Disease  [PDF]
Nikolaos Fotos,Hero Brokalaki
To Vima tou Asklipiou , 2008,
Abstract: Celiac disease is a small intestine disease caused by the immunological response to gluten, a component of wheat, rye and barley. The worldwide prevalence of celiac disease ranges between 0.2% and 2.2 %. The clinical features of celiac disease includes diarrhea, steatorrhea, flatulence, abdominal pain and weight loss. The asymptomatic type of celiac disease is characterized by soft or normally shaped stool, weakness, lassitude and moderate weight loss. In children, celiac disease usually arises between the first and the third year of age, with diarrhea, flatulence and low weight. The malabsorption in small intestine causes many extaintestinal manifestations, such us anemia, bone abnormalities, hemorrhage and neuropathy. Celiac disease is diagnosed by histological examination of tissue samples taken by duodenum due gastroscopy and by the detection of certain antibodies in blood (anti-GL-IgG, anti-GL-IgA, ΕΜΑ-IgA και anti-tTg-IgA). The only therapeutic approach to celiac disease is a gluten-free diet and, if it is necessary, the administration of iron, folic acid, calcium and vitamins (K, B12). The prognosis of celiac disease is excellent, if there is an early diagnosis and the patient keeps for life a gluten free diet.
Ensino Colaborativo Online (ECO): uma experiência aplicada ao ensino da Matemática  [cached]
Leonel Tractenberg,Rafael Barbastefano,Miriam Struchiner
Bolema: Boletim de Educa??o Matemática , 2011,
Abstract: Justificativa. O ensino colaborativo (EC) e o ensino colaborativo online (ECO) podem contribuir para romper a cultura de isolamento docente, favorecer o desenvolvimento dos professores, a implementa o de práticas pedagógicas inovadoras e a aprendizagem dos alunos. Apesar dos potenciais benefícios, há poucos estudos sobre EC e, ainda menos, sobre ECO no ambito do ensino da Matemática. Objetivos. Analisando uma experiência de ECO de Geometria, buscou-se identificar como nela se fazem presentes as contribui es do EC para o ensino da Matemática, e de que forma as TICs utilizadas contribuíram para a efetividade dessa experiência. Métodos. Foram utilizados métodos e procedimentos baseados nas abordagens etnometodológica e de análise conversacional. Resultados. Com base nos achados, s o discutidas as contribui es do EC e as vantagens e desafios do ECO para o ensino da matemática, bem como algumas vantagens da metodologia empregada.
Artemia (Crustacea, Anostraca) in Chile: a review of basic and applied biology Artemia Crustacea, Anostraca) en Chile: revisión de la biología básica y aplicada  [cached]
Patricio De los Rios-Escalante,Italo Salgado
Latin american journal of aquatic research , 2012,
Abstract: The brine shrimp Artemia in Chile has been studied since the 1980s, initially on populations inhabiting shallow coastal and inland mountain ponds, and saltworks in northern and central Chile. Based on morphometric and molecular evidence, these populations were identified as A. franciscana. In the 1990s, A. persimilis was recorded from southern Patagonia, a species previously considered endemic to Argentina. Recently, two new populations of A.franciscana have been recorded, from one saline coastal pond in northern Chile and from a saltwork in central Chile. The scope for further research to increase both understanding of the strain characterization and basic population ecology descriptions of the Chilean brine shrimps and improve their conservation status is discussed. It is suggested that future studies should investigate first the management of local brine shrimp population for local aquaculture or conservation resources, other direction would be the effects of ultraviolet radiation (UVR) exposition that is notoriously high in brine shrimp habitats. This last factor is very important because the UVR is an important mutagen on the genetic structure of the populations. In this scenario, it is suggest a carefully management for introduced brine shrimp populations for local aquaculture for avoid alterations in native populations that due their genetic isolation would need conservation procedures for avoid local extinctions. El camarón de salmuera o Artemia ha sido estudiado en Chile desde la década de 1980, las primeras descripciones de poblaciones fueron para lagunas someras en zonas costeras y de montana, y en salinas artificiales en la zona central y norte de Chile. Sobre la base de evidencias morfométricas y moleculares estas poblaciones fueron descritas como A. franciscana. En la década de 1990, se describió la presencia de A. persimilis en la zona sur de la Patagonia, lo cual fue una ampliación del rango de distribución significativa, pues esta especie se le consideró endémica de Argentina. Recientemente dos nuevas poblaciones de A. franciscana fueron reportadas en una laguna somera en el norte y para una salina artificial en la zona central. El objetivo del presente estudio fue realizar una investigación para entender la caracterización de poblaciones y ecología básica de las poblaciones chilenas del camarón de salmuera y discutir como mejorar el estado de la conservación de estas. Se discute que a futuro los estudios se deberían enfocar primero al manejo de poblaciones nativas para acuicultura local o como un recurso para su conservación, otras ori
Sobrediagnóstico microscópico de amebiasis intestinal: Resultados de una encuesta aplicada a responsables de laboratorios de la provincia de Cienfuegos  [cached]
María de los ángeles Fernández Ferrer,Lizet Sánchez Valdez,Humberto Marín Iglesias,Ivón Montano Goodridge
Revista Cubana de Salud Pública , 1998,
Abstract: Empleando ENZYMEBA, procedimiento diagnóstico de amebiasis intestinal desarrollado en el Instituto de Medicina Tropical "Pedro Kourí", se demostró que en la provincia Cienfuegos el examen microscópico de heces se asocia a un marcado sobrediagnóstico de esta parasitosis (de 424 muestras positivas a Entamoeba histolytica por examen microscópico sólo 61 lo fueron por ENZYMEBA). Para incusionar en los factores que podrían estar incidiendo en la calidad del trabajo de los técnicos de aquella provincia, aplicamos una encuesta al universo de los responsables de laboratorios de ésta. El conjunto de los resultados de la aplicación de este cuestionario (11 preguntas) nos sugiere que en la calidad del diagnóstico de amebiasis intestinal por examen microscópico de heces podrían estar incidiendo deficiencias técnico-organizativas asociadas a otros factores objetivos y subjetivos. Using ENZIMEBA, diagnostic procedure of intestinal amebiasis, developed in the Institute of Tropical Medicine "Pedro Kourí", it could be shown that in the Cienfuegos Province, the microscopic assay of feces, was associated to a marked superdiagnosis of this parasitosis (out of 424 Entamoeba histolytica positive sample by microscopic screenings, only 61 were positive ENZYMEBA samples). In order to know the factors that could be influencing on the quality of work of that province's technicians, we applied a survey to the universe of that province's laboratory personnel. The group of results from this survey (11 questions) suggest us that the quality of the intestinal amebiasis diagnosis, by microscopic screening of feces, could be affected by tecnnical and organizational defficiencis associated to other objective and subjective factors.
Celiac disease
Wolfgang Holtmeier, Wolfgang F Caspary
Orphanet Journal of Rare Diseases , 2006, DOI: 10.1186/1750-1172-1-3
Abstract: Celiac disease (CD) in children and celiac sprue in adults are probably the same disorder with the same pathogenesis. The synonyms are: Coeliac disease (British spelling) – Celiac sprue – Nontropical sprue-Gluten-sensitive enteropathy – Idiopathic steatorrheaCeliac disease is a chronic intestinal disease mostly associated with malabsorption caused by intolerance to gluten. It is characterized by immune-mediated enteropathy (villous flattening), resulting in maldigestion and malabsorption. Clinical and histological improvement can be obtained after withdrawal of dietary gluten.Celiac disease is characterized by malabsorption and villous atrophy. However, diseases other than CD can cause marked villous flattening and increased intraepithelial lymphocytes (IEL) [1]. Differential diagnosis is of special importance for subjects in whom CD is suspected and who have negative serology. The following diseases, which can have similar features, must be ruled out [1-4]:? Tropical sprue? Collagenous colitis? Whipple's disease? Giardiasis? Viral enteritis? AIDS? Crohn's disease of the small intestine? Small intestinal lymphoma? Carbohydrate intolerance, cow's milk intolerance? Autoimmune enteropathy? Graft-vs-host disease? Radiation damagePrevalence of clinically overt celiac disease varies from 1/270 in Finland to 1/5,000 in North America. However, since celiac disease can be asymptomatic, most subjects are not diagnosed or they can present with atypical symptoms. In epidemiological studies aimed to assess CD prevalence, large cohorts in North America and Europe were screened for highly-sensitive endomysium or tissue transglutaminase antibodies. Besides, they underwent subsequent small intestinal biopsies when antibody testing was positive. The CD prevalence was found to be much higher than expected. Approximately 1/100 to 1/500 were found positive for antibodies and had villous atrophy of the small intestine [5-10]. Thus, up to 1% of a western population tests positive for celi
Violencia sexual en hombres y mujeres jóvenes en Chile: Resultados de una encuesta (a?o 2005) a estudiantes universitarios
Lehrer,Jocelyn A; Lehrer,Evelyn L; Oyarzún,Pamela B;
Revista médica de Chile , 2009, DOI: 10.4067/S0034-98872009000500002
Abstract: background: experiences of sexual violence in adolescence and young adulthood have received little attention in chilean public health research and practice. aim: to describe the prevalence and contexts of sexual violence victimization in a sample of university students in chile. material and methods: a self-administered, quantitative survey including items on sexual violence was completed by 484 female and 466 male students at a public university in chile in 2005. results: thirty-one percent of women and 21 % of men reported having experienced at least one incident of sexual violence since age 14; the corresponding percentages for the past 12 months were 17% and 12%, respectively. the perpetrators were identified predominantly as an acquaintance; another important fraction corresponded to a partner or a date. alcohol or other substances were involved in most cases. among students who indicated having been assaulted, the incident was reported to the police by none of the men and 2% of women. twenty one percent of women and 9% of men reported having experienced sexual violence before age 14. conclusions: the high prevalence of sexual violence found in this study indicates that this issue merits further public health attention in chile.
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