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Search Results: 1 - 10 of 538054 matches for " Gisela; García-Carre?o "
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Efecto de la concentración de quitosano y ph sobre la remoción de sólidos en agua de cola de la industria sardinera
Pacheco-Aguilar,Ramón; Leyva-Soto,Pedro; Carvallo-Ruiz,Gisela; García-Carreo,Luis F; Márquez-Ríos,Enrique;
Interciencia , 2009,
Abstract: the stickwater is a complex effluent consisting of a variety of solids, most of which should be removed to produce a new effluent that can be directly poured into the sea. in this study, stickwater was centrifuged to remove solids and the resulting liquid was then treated with chitosan at different concentrations and ph to eliminate the solids left in it. centrifugation extracted 33.88% of total solids, 28.52% protein, 97.50% fat, 40% ash and 20% npn. it also decreased in 42.2 and 63.3% the bod5 and cod, respectively. transmittance percent increased from 14.6 to 18.4, a small change in relation to the content of solids removed. the addition of chitosan to centrifuged stickwater decreased 25% of the total solids content, 55% of protein, 40% fat, 24% ash and 60% npn. likewise, the addition of chitosan decreased the bod5 and cod in 48.4 and 31.2%, respectively. as a consequence, transmittance increased from 18.4 to 86.0%, indicating that such increase was mainly due to the elimination of pigments rather than organic matter. a significant decrease was achieved in bod5 and cod; nevertheless, other tools are required to reduce these figures to the levels established by the environmental health regulations.
Relationship of metabolic syndrome and its components with -844 G/A and HindIII C/G PAI-1 gene polymorphisms in Mexican children
Ulises De la Cruz-Mosso, José F Mu?oz-Valle, Lorenzo Salgado-Goytia, Adrián García-Carreón, Berenice Illades-Aguiar, Eduardo Casta?eda-Saucedo, Isela Parra-Rojas
BMC Pediatrics , 2012, DOI: 10.1186/1471-2431-12-41
Abstract: This study included 100 children with an age range between 6-11 years divided in two groups: a) 48 children diagnosed with metabolic syndrome and b) 52 children metabolically healthy without any clinical and biochemical alteration. Metabolic syndrome was defined as the presence of three or more of the following criteria: fasting glucose levels ≥ 100 mg/dL, triglycerides ≥ 150 mg/dL, HDL-cholesterol < 40 mg/dL, obesity BMI ≥ 95th percentile, systolic blood pressure (SBP) and diastolic blood pressure (DBP) ≥ 95th percentile and insulin resistance HOMA-IR ≥ 2.4. The -844 G/A and HindIII C/G PAI-1 polymorphisms were analyzed by PCR-RFLP.For the -844 G/A polymorphism, the G/A genotype (OR = 2.79; 95% CI, 1.11-7.08; p = 0.015) and the A allele (OR = 2.2; 95% CI, 1.10-4.43; p = 0.015) were associated with metabolic syndrome. The -844 G/A and A/A genotypes were associated with increase in plasma triglycerides levels (OR = 2.6; 95% CI, 1.16 to 6.04; p = 0.02), decrease in plasma HDL-cholesterol levels (OR = 2.4; 95% CI, 1.06 to 5.42; p = 0.03) and obesity (OR = 2.6; 95% CI, 1.17-5.92; p = 0.01). The C/G and G/G genotypes of the HindIII C/G polymorphism contributed to a significant increase in plasma total cholesterol levels (179 vs. 165 mg/dL; p = 0.02) in comparison with C/C genotype.The -844 G/A PAI-1 polymorphism is related with the risk of developing metabolic syndrome, obesity and atherogenic dyslipidemia, and the HindIII C/G PAI-1 polymorphism was associated with the increase of total cholesterol levels in Mexican children.Metabolic syndrome (MetS) is a common disorder caused by a combination of poor diet, sedentary lifestyle and genetic predisposition [1], the presence of MetS in children is the main risk factor that predisposes to the development of cardiovascular and metabolic diseases such as atherosclerosis and type 2 diabetes mellitus in adulthood [2]. The components of MetS include obesity, insulin resistance, hyperglycemia, atherogenic dyslipidemia, and hyperte
Upper lower Eocene calcareous nannoplankton from the Las Pocitas core (Tepetate formation), Baja California Sur, Mexico
García-Cordero, Erandi;Carreo, Ana Luisa;
Revista mexicana de ciencias geológicas , 2009,
Abstract: sixty species of calcareous nannoplankton from the tepetate formation were recovered from a drill hole near las pocitas, baja california sur. in spite of its low abundance and erratic distribution throughout the sedimentary column, the great amount of reworked species, as well as the absence of traditional index fossils representing the standard tropical biozonation, the co-occurrence of reticulofenestra dyctioda, rhabdosphaera crebra, r. pinguis, micrantholithus flos, pontosphaera pectinata and lanternithus minutus situates the studied stratigraphic column at the discoasteroides kuepperi cp12a subzone of okada and bukry, dated between 49.5 and 49 ma at the top of the upper lower eocene. the population structure as well as the lithological features of the sedimentary package, suggest a temperate open-sea deposit, which confirms interpretations based on other marine fossils at arroyo datilar, el conejo, salada, colorado y las pocitas, where rocks of the lower middle eocene tepetate formation crop out.
Descripción clínica y epidemiológica de un grave brote de salmonelosis transmitida por alimentos
García-Huidobro,Diego; Carreo,Mónica; Alcayaga,Sergio; Ulloa,Jenny;
Revista chilena de infectología , 2012, DOI: 10.4067/S0716-10182012000200002
Abstract: background: foodborne diseases have increased considerably. aim: to report a foodborne outbreak, remarking the importance of early notification to activate the epidemiological surveillance system. results: during february 2011 we observed a salmonella enteritidis outbreak. 31.6% of the cases were seen in the same emergency care unit where all required intravenous fluid rehydration, and 41.7% were hospitalized because of severe dehydration. in the emergency room 45.5% of cases required a second visit to be diagnosed correctly. discussion: physicians under report the cases of this disease, delaying the activation of the epidemiological surveillance system. conclusions: besides providing good treatment to patients, physicians need to be qualified to recognize foodborne diseases and communicate early the suspicion of an outbreak to the epidemiological surveillance system in order to prevent new cases of disease in the community.
Interrupción voluntaria del embarazo en mujeres de un distrito sanitario de Almería durante el período 1998-2002
Barroso García,Pilar; Lucena Méndez,Ma ángeles; Parrón Carreo,Tesifón;
Revista Espa?ola de Salud Pública , 2005, DOI: 10.1590/S1135-57272005000400006
Abstract: background: the immigrant population has undergone an increase in andalusia as a whole and in almeria in particular. the primary healthcare districts manage the requests for voluntary interruption of pregnancy. this study is aimed as describing the trend in requests for voluntary interruption of pregnancy among immigrant and non-immigrant women in the "levante-alto almanzora" health district of almeria. methods: descriptive study conducts during the 1998-2002 period. study material: requests for voluntary interruption of pregnancy, andalusian institute of statistics demographic data, temporary medical care cards. variables studied: age, date of request, pregnancy ≥, or < 12 weeks, type of population (immigrant or non-immigrant). voluntary interruption of pregnancy rates were calculated per 1000 women within the 15-49 age range and the relative risk with confidence intervals and statistical significance for studying the relationship between the number of interruptions and populations type. results: a total of 224 requests were studied. the largest number were made in 2002, for a 3.1 rate. the age group making the largest number of requests was the 20-24 age range (29.5%). ninety-five percent (95%) of the women were less than 12-weeks pregnant. a total of 52.7% were immigrant women, a greater risk of requesting voluntary interruption of pregnancy having been found among immigrants as compared to native spanish women, rr of 66.45 (ci 95%: 36.11-122.28) in 2001; 292.8 (ci 95%: 91.12-940.9) in 1999. conclusions: voluntary interruption of pregnancy was found to have increased in the public services, particularly among immigrant women, within the period studied.
Validación de un cuestionario breve para medir conductas alimentarias de riesgo
Unikel-Santoncini,Claudia; Bojórquez-Chapela,Ietza; Carreo-García,Silvia;
Salud Pública de México , 2004, DOI: 10.1590/S0036-36342004000600005
Abstract: objetive: to assess the validity and reliability of a questionnaire for the screening of risk eating behaviors. material and methods: the questionnaire was applied to female high school students in mexico city in october2002, as well as to a sample of eating disorder patients seen at the eating disorders unit of the national institute of psychiatry between september and december 2002. statistical methods included internal consistency analysis (cronbach's alpha) and factor and principal component analysis with oblique rotation. the cutoff point, sensitivity, specificity, and predictive values of the questionnaire were determined using 2 x 2 tables. results: the questionnaire showed a high reliability (·=0.83) and a three-factor structure with 64.7% of the total explained variance. a discriminant analysis showed that almost 90% of cases were correctly classified. conclusions: this questionnaire is reliable and valid for assessing risk eating behaviors in the study population.
Descripción clínica y epidemiológica de un grave brote de salmonelosis transmitida por alimentos Clinical and epidemiological description of severe outbreak of foodborne infection by Salmonella Enteritidis
Diego García-Huidobro,Mónica Carreo,Sergio Alcayaga,Jenny Ulloa
Revista chilena de infectología , 2012,
Abstract: Introducción: Las enfermedades transmitidas por alimentos (ETA) han aumentado considerablemente. Objetivo: Reportar un grave brote de ETA destacando la importancia de la notificación precoz para la activación del sistema de vigilancia epidemiológica. Resultados: Durante febrero de 2011 se observó un brote de Salmonella Enteritidis. Un 31,6% de los casos fueron atendidos en un mismo servicio de urgencia, donde todos requirieron la administración de fluidos endovenosos y 41,7% fueron hospitalizados por deshidratación grave. El 45,5% de los casos necesitó de una segunda consulta para ser diagnosticados correctamente. Discusión: La identificación de pacientes integrantes de un brote de ETA es difícil en los servicios de urgencia y los médicos sub-reportan los casos, retrasando al sistema de vigilancia epidemiológica. Conclusiones: Junto con brindar un adecuado tratamiento, los médicos deben estar capacitados para reconocer las ETA y comunicar tempranamente la sospecha de un brote para prevenir nuevos casos en la comunidad. Background: Foodborne diseases have increased considerably. Aim: To report a foodborne outbreak, remarking the importance of early notification to activate the epidemiological surveillance system. Results: During February 2011 we observed a Salmonella Enteritidis outbreak. 31.6% of the cases were seen in the same Emergency Care Unit where all required intravenous fluid rehydration, and 41.7% were hospitalized because of severe dehydration. In the Emergency Room 45.5% of cases required a second visit to be diagnosed correctly. Discussion: Physicians under report the cases of this disease, delaying the activation of the epidemiological surveillance system. Conclusions: Besides providing good treatment to patients, physicians need to be qualified to recognize foodborne diseases and communicate early the suspicion of an outbreak to the epidemiological surveillance system in order to prevent new cases of disease in the community.
Validación del Eating Disorder Inventory en una muestra de mujeres mexicanas con trastorno de la conducta alimentaria
Claudia Unikel Santoncini,Ietza Bojorquez Chapela,Silvia Carreo García,Alejandro Caballero Romo
Salud mental , 2006,
Abstract:
Características organizacionales, estrés y consumo de alcohol en trabajadores de una empresa textil mexicana
Silvia Carreo García,Ma. Elena Medina Mora,Nora Martínez Vélez,Francisco Juárez García
Salud mental , 2006,
Abstract: En el ambiente laboral hay diversos factores que pueden propiciar bienestar o malestar en los obreros. La percepción del clima organizacional y la valoración que las personas hagan, tiene efectos negativos y positivos que producen consecuencias tanto a nivel individual como en el desempe o laboral. El estrés laboral es otro factor que tiene repercusiones significativas en la salud de las personas y en la calidad del trabajo y se ha relacionado con el consumo excesivo de alcohol, el uso de sustancias psicoactivas y el incremento de múltiples problemas sociales y laborales. Con base en lo anterior, el objetivo de este trabajo es determinar qué factores organizacionales como estrés laboral, clima organizacional y satisfacción en el trabajo se relacionan con el consumo de alcohol, la presentación de problemas laborales y los accidentes, en los trabajadores mexicanos de una empresa textil. Método El estudio se hizo en una empresa textil. La muestra fue de 277 trabajadores, todos hombres, de 16 a 65 a os de edad, 85% con estudios de secundaria y 82.7% casados o en unión libre. Se utilizó un cuestionario auto aplicado y anónimo; con la prueba AUDIT de alcohol, escalas de estrés laboral, clima organizacional, satisfacción laboral y preguntas generales. Resultados En cuanto al clima organizacional, la mayoría (92%) percibe buena comunicación con su grupo de trabajo, 87.2% mencionó tener ayuda de su jefe, 78% indicó contar con apoyo suficiente para resolver problemas...
Relación entre nivel de consumo de alcohol, salud mental y sintomas somaticos en un grupo de trabajadores de la industria gastronomica y hotelera de la Ciudad de México
Eunice Ruiz Cortés,Silvia Carreo García,Nora Martínez Vélez,Francisco Juárez García
Salud mental , 2006,
Abstract:
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