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Search Results: 1 - 10 of 11245 matches for " Patricia Montoya "
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Immature stages and natural history of the Andean butterfly Altinote ozomene (Nymphalidae: Heliconiinae: Acraeini)
Velez, Patricia Duque;Montoya, Hugo Hernando Vargas;Wolff, Marta;
Zoologia (Curitiba) , 2011, DOI: 10.1590/S1984-46702011000500007
Abstract: the immature stages (eggs, larvae and pupae), oviposition and larval behavior of altinote ozomene (godart, 1819) are described here for the first time. larvae were reared from egg clutches collected from the host plants erato vulcanica (klatt) h.rob and munnozia senecionidis benth (asteraceae). eggs were laid in groups on the undersides of leaves. the number of instars varied from five to eight within the same egg clutch, and the corresponding development time from larva to adult varied from 91 to 115 days. most (72%) larvae pupated during the sixth instar. the first four instars fed only on the leaf cuticle, whereas later instars consumed the whole leaf. larvae were gregarious during all instars but rested together only during the day in later instars, either hidden inside dry leaves, on the stem at the base of the host plants, or in the leaf litter. larvae showed similar morphology and behavior to those previously described for species of actinote hübner, 1819 from southeastern brazil and the andes.
Quality of diet related to food insecurity and food stamps use among older people
Maria F Montoya,Andre W Hite,Patricia Rohrbeck,Binky Bawa
Ageing Research , 2011, DOI: 10.4081/ar.2011.e3
Abstract: We explore the association between quality of diet and food security status among older persons. Cross-sectional survey of large national samples, from the National Health & Nutrition Examination Surveys (1988-1994 & 2001-2002), in the United States. A total of 5,039 and 2,040 men and women aged 60 and older, respectively. The dependent variable was the healthy eating index (HEI; 2000 and 2005) as a measure of diet quality. The independent variable of interest was food security status and was categorized as food secure, food insecurity receiving food stamps and food insecurity not receiving food stamps. In multivariate analyses, food insecure individuals not receiving food stamps had lower total HEI-2000 scores compared to food secure individuals (b=-3.91, SE=1.81, P=0.0310). Factors independently associated with high HEI (2000 or 2005) scores were female gender, being married, highly educated or wealthy, with very good/ excellent perceived health, or without functional limitations. Food secure individuals had better quality of diet than food insecure individuals. Among food insecure individuals, receiving food stamps was not associated with diet quality. Food insecure families with older individuals may need new methods of dissemination of food and nutrition programs – methods that yield positive and promising changes in the health status of this special population group.
EFECTO DEL INCREMENTO EN LA TURBIEDAD DEL AGUA CRUDA SOBRE LA EFICIENCIA DE PROCESOS CONVENCIONALES DE POTABILIZACIóN EFEITO DO INCREMENTO NA TURBIEDADE DA áGUA CRUA SOBRE A EFICIêNCIA DE PROCESSOS CONVENCIONAIS DE POTABILIZA O EFFECT OF INCREASE OF RAW WATER TURBIDITY ON EFFICIENCY OF CONVENTIONAL DRINKING WATER TREATMENT PROCESSES
Carolina Montoya,Diana Loaiza,Patricia Torres,Camilo Hernán Cruz
Revista EIA , 2011,
Abstract: Los fenómenos ambientales provocan fuerte impacto sobre la variación de la calidad del agua de fuentes de abastecimiento, exigiendo que los procesos de potabilización respondan a tales variaciones y mantengan los estándares de calidad en la producción de agua segura. El análisis histórico del comportamiento de la turbiedad del río Cauca y del agua clarificada y tratada permitió evaluar el efecto del incremento en la turbiedad del agua cruda sobre la eficiencia de los procesos convencionales de potabilización que se realizan en la planta Puerto Mallarino en Cali (Colombia). Se encontró que dicho fenómeno afectó la eficiencia del tratamiento y la calidad del agua tratada, siendo la filtración la etapa más vulnerable. Se identificó alta correlación lineal entre la turbiedad máxima del agua cruda y la dosificación de productos químicos utilizados en el tratamiento del agua (coagulante y desinfectante). Os fen menos ambientais provocam forte impacto sobre a varia o da qualidade da água de fontes de abastecimento, exigindo que os processos de potabilizac o respondam a tais varia es e mantenham os standards de qualidade na produ o de água segura. A análise histórica do comportamento da turbidez do rio Cauca e da água clarificada e tratada permitiu avaliar o efeito do incremento na turbidez da água crua sobre a eficiência dos processos convencionais de potabilizac o que se realizam na planta Porto Mallarino em Cali (Col mbia). Encontrou-se que dito fen meno afetou a eficiência do tratamento e a qualidade da água tratada, sendo a filtra o a etapa mais vulnerável. Identificou-se alta correla o linear entre a turbidez máxima da água crua e a dosagem de produtos químicos utilizados no tratamento da água (coagulante e desinfetante). Environmental phenomena cause a strong impact in the variation of the quality of sources for drinking water, demanding that potable water treatment processes respond to these changes and maintain quality standards in the production of safe drinking water. The historical analysis of river Cauca turbidity and behavior of clarified and filtrated water allowed evaluating the effect of increase in raw water turbidity over water treatment conventional processes of Puerto Mallarino plant at Cali (Colombia). It was determined that the high turbidity of the water of river affected the treatment efficiency and also the quality of treated water; filtration was the most vulnerable stage to these high turbidity events. A high linear correlation between maximum turbidity and chemical products dose (coagulant and disinfectant) was identified.
Isonymy analysis between 2 populations in northwestern Colombia Análisis de isonimia entre poblaciones del noroeste de Colombia
Gabriel Bedoya,Jenny García,Patricia Montoya,Winston Rojas
Biomédica , 2006,
Abstract: Introduction. Surname frequency (isonymy) is used as a marker of paternal lineage and is used to characterize human population structure. Principles of isonymy were used to determine the genetic structure, migration rates, ancestry relations and origins of populations. This analysis was applied to two historically related local populations which currently are considered to be genetically isolated. Objective. The genetic relationships and influence zones of the Aranzazu and Marinilla populations were assessed by means of surname frequency analysis. Materials and methods. Data originated from database with the title "System of Identification of Beneficiaries of the Social Programs" database or Sisben. Population parameters such as a priori kinship (fii), population homogeneity with B and C estimators, and Cavalli-Sforza's genetic distance were calculated for (a) three towns of Marinilla and its influence zone and (b) Aranzazu. The Rionegro population served as an external, comparison population. Results. The Aranzazu and Marinilla populations showed the higher homogeneity (B value between 0.25 and 0.5) in contrast with Rionegro (B = 0.159), as well as greater a priori kinship values (fii between 0.003 and 0.010). The lowest distances were found between Marinilla and Aranzazu. Conclusions. Aranzazu is a population with characteristics similar to those of Marinilla and its influence zone. The close similarity of genetic characteristics for these populations is due probably to a founder effect. Furthermore, the genetic similarity predicts that genetic diseases will have the same etiology in both populations and provides optimum conditions for gene mapping studies. Introducción. La utilización de la frecuencia de apellidos como marcadores de linajes paternos ha permitido caracterizar poblaciones. Los principios de isonimia se han empleado para determinar el grado de estructuración genética, las tasas de migraciones y las relaciones de ancestría y origen entre poblaciones. Este análisis se aplicó a dos poblaciones históricamente relacionadas y consideradas como aislados genéticos. Objetivo. Evaluar las relaciones genéticas y de origen entre Aranzazu y Marinilla y su zona de influencia por medio de análisis de frecuencia de apellidos. Materiales y métodos. A partir de la base de datos del Sistema de Identificación de Beneficiarios de los Programas Sociales, Sisbén, se calcularon los parámetros poblacionales de coeficiente de parentesco (fii), la homogeneidad poblacional con los estimadores B (porcentaje de la población que comparte los siete apellidos más frecue
Efecto de la temperatura elevada en las propiedades mecánicas de los conectores de alta tensión
Gloria Patricia Fernández Morales,Juan Guillermo Maya Montoya
DYNA , 2004,
Abstract: Los conectores de alta tensión son dispositivos utilizados para la interconexión entre dos elementos de un circuito eléctrico tales como dos conductores o un conductor y la terminal de un equipo de alta tensión. Los conectores son fabricados en aleaciones de aluminio Al-Si-Mg y en algunos casos tratados térmicamente para conferirles las excelentes propiedades mecánicas requeridas para las condiciones de servicio. Sin embargo, es sabido que dichas propiedades no permanecen constantes durante el tiempo teórico de vida útil debido a las severas condiciones de operación de los elementos interconectados. Como herramienta de mantenimiento, las inspecciones termográficas han demostrado incrementos de temperatura superiores a las temperaturas de tratamiento térmico para dichas aleaciones de aluminio, pero los termogramas no dan idea real de que tan afectado se encuentra el conector en su estructura y si es necesario su reposición o puede continuar en servicio durante otro período de tiempo no determinado.
Effectiveness of an Secondary Prevention Program in Chronic Kidney Disease  [PDF]
Carlos Enrique Yepes Delgado, Yanett Marcela Montoya Jaramillo, Beatriz Elena Orrego Orozco, Paulina Bernal Ramírez, Luz Denise González, José Miguel Abad Echeverri, María Patricia Arbeláez Montoya
Open Journal of Nephrology (OJNeph) , 2013, DOI: 10.4236/ojneph.2013.33026
Abstract:

Background: There are many programs which focus on late-stage chronic kidney disease (CKD), and it is considered that further evidence needs to be generated regarding the effectiveness of the programs used before renal replacement therapy. Study Design: A cohort study. Settings & Participants: Patients over 15 years of age who had been diagnosed with CKD according to the KDOQI (Kidney Disease Outcomes Quality Initiative) guidelines and who had undergone conventional treatment (CT) or a renal protection program (RPP). These were patients of two Colombian health insurance companies. Predictors: Age, sex, marital status, comorbidities, CKD stage, and clinical indicators. Outcomes: First CKD progression, and need for renal replacement therapy (RRT). Measures: Clinical marker. Results: The RPP is structurally and functionally different from the CT. It offers the interdisciplinary management of patients, a greater number of medical appointments, and patients start to receive treatment at younger ages and at earlier stages of their condition. The clinical markers of the patients following the RPP are within adequate ranges, and their renal function is less impaired, despite the differences in basal conditions. Upon finishing the study, we found that patients who received CT had a higher risk of receiving nephrotoxic drugs and not receiving nephroprotective drugs. The explanatory variables for the first progression were age, stage, history of dyslipidemia, and hemoglobin, potassium, and albumin levels. These variables, together with glycemia levels were also valid for RRT, except for history of dyslipidemia, as it was not significant. Upon adjusting for the explanatory variables, it was found that belonging to the RPP and attending more appointments had a protective effect in the process of controlling renal damage. Limitations: A possible selection bias. Conclusions: Belonging to a structured renal protection program is an effective way to keeping the clinical markers associated with renal impairment within normal ranges.

Identificación empírica de subtipos clínicos de esquizofrenia Empirical Identification of Schizophrenia Subtypes
Jenny García Valencia,ángela Patricia Rodríguez Betancur,María Patricia Arbeláez Montoya,Carlos Alberto Palacio Acosta
Revista Colombiana de Psiquiatría , 2010,
Abstract: Objetivos: Identificar empíricamente subtipos de esquizofrenia con base en síntomas presentados a lo largo del trastorno y determinar si existen entre éstos diferencias en características sociodemográficas y clínicas. Métodos: Se obtuvo información clínica de 217 sujetos con esquizofrenia aplicando la Entrevista Diagnóstica para Estudios Genéticos (DIGS). Los ejes de síntomas clínicos de esquizofrenia se identificaron usando análisis de correspondencias múltiples y con base en éstos se hizo una clasificación jerárquica, para determinar los subtipos de individuos con esquizofrenia. Resultados: Se obtuvo una solución de tres ejes de síntomas clínicos: (1) delirios y alucinaciones, (2) catatónico y (3) síntomas desorganizados y negativos. Con base en éstos, se identificaron cinco subtipos: paranoide sin vivencias de influencia, desorganizado puro, catatónico, desorganizado con alucinaciones y delirios y paranoide con vivencias de influencia. Al comparar con el subtipo 1: el 2 presentó con mayor frecuencia un inicio temprano del trastorno (OR: 2,64; IC95%: 1,00-6,96) y deterioro grave (OR: 4,12; IC95%: 1,73-9,79); el 3 tenía menos comorbilidad con trastorno por uso de sustancias (OR: 0,12; IC95%: 0,01-1,00); y el 4 evidenció un mayor número de sujetos con curso continuo (OR: 4,40; IC95%: 1,84-10,52) y deterioro grave (OR: 5,34; IC95%: 2,15-13,27). No había diferencias significativas entre los subtipos 1 y 5. Conclusión: Se obtuvieron empíricamente cinco subtipos clínicos de esquizofrenia similares a descripciones previas y que tienen diferencias en el curso del trastorno y comorbilidad. Objectives: To empirically identify subtypes of schizophrenia based on symptoms recorded during the duration of the disorder, and to determine demographic and clinical differences among subtypes. Methods: Clinical information was obtained from 217 subjects with schizophrenia by the Diagnostic Interview for Genetic Studies (DIGS). The axes of symptoms were identified using Multiple Correspondence Analysis. Based on these axes, subtypes of individuals with schizophrenia were determined by hierarchical classification analysis. Results: A solution of three axes of symptoms was obtained: (1) hallucinations and delusions, (2) catatonic, and (3) negative and disorganized symptoms. Based on these axes, i ve subtypes were identified: Paranoid without influence experiences, disorganized, catatonic, disorganized with hallucinations and delusions, and paranoid with influence experiences. When compared with Subtype 1, Subtype 2 had a higher frequency of early onset (OR: 2.64; 95CI%: 1.00
FACTORES ASOCIADOS AL SíNDROME DE BURNOUT EN DOCENTES DE ENFERMERíA, MEDELLíN-COLOMBIA 2008
Bare?o Silva,José; Berbesi Fernández,Dedsy Yajaira; Montoya Zapata,Claudia Patricia;
Investigaciones Andina , 2010,
Abstract: introduction: the syndrome "burnout" whose meaning would be "job stress" burnout. "has been defined as an occupational hazard that leads to deterioration of the quality of life of workers. the present study strives to determine the prevalence of burnout syndrome in nurses, teachers of educational institutions in medellín and possible risk factors. methods: an observational cross-sectional type with professional nurses, teachers in the educational institutions using a questionnaire addressed medellin, with a convenience sampling. results: in total 95 surveys were collected. the statistically significant variables were working relationship, satisfaction of employees working at another institution. conclusions: the prevalence of the tendency of the syndrome of burnout in nurse educators was 94.7%. it recommends actions to control the emotional tiredness and strengthen personal fulfillment in teaching nurses.
Probable brote de transmisión oral de enfermedad de Chagas en Turbo, Antioquia
Ríos,Juan Fernando; Arboleda,Margarita; Montoya,Alba Nelly; Alarcón,Erika Patricia;
Biomédica , 2011,
Abstract: introduction. chagas′ disease is endemic in 21 countries of south and central america, including colombia, where 700,000 to 1.2 million persons are infected and eight millions are at risk. in endemic areas, chronic cases are predominant. however, in recent years, increasing reports of acute oral transmission have appeared. objective. an outbreak of acute chagas′ disease was verified in the municipality of turbo (antioquia), and the most probable cause of transmission was determined in order to establish prevention and control measures. materials and methods. a descriptive study was done. a search for information from local health authorities was conducted to uncover all case reports. laboratory tests, risk factor analysis and search for vectors and reservoirs were undertaken in turbo. results. of the156 people evaluated, 11 cases of acute chagas′ disease were identified. ten had significant titers of igm and igg antibodies against the trypanosoma cruzi parasite by ifat and elisa tests; one fatal case was linked epidemiologically. in 3 cases, pcr was positive for t. cruzi, two of which displayed chagas cardiomyopathy, and one with acute fever. four cases required specialized health care for acute cardiomyopathy. all positive cases had a common source of food. one specimen of the triatomid vector species, panstrongylus geniculatus, and one reservoir, the woolly opossum caluromys lanatus, were collected; both were negative to t. cruzi. conclusions. an outbreak of acute chagas′ disease occurred in turbo, antioquia. the mode of transmission may have occurred by the ingestion of t. cruzi-contaminated food by infected triatomines or opossum feces.
Association of severe malaria with ABO-blood group types in an endemic zone of Colombia
HERRERA,ANA MILENA; MONTOYA,LILIANA PATRICIA; ARBOLEDA,MARGARITA; ORTIZ,LUISA FERNANDA;
CES Medicina , 2009,
Abstract: introduction: malaria is considered one of the most important tropical illnesses in public health causing millions of infections and deaths each year. many studies have tried to establish an association between the severe form of the disease and the abo-blood group type. in colombia, a country with large endemic zones for malaria there are not enough studies or statistic data about this possible association. methods: a retrospective case-control study of patients with severe and uncomplicated malaria in the endemic zone of apartadó, colombia, was performed between january 2000 and june 2006. only the clinical records with blood group abo and rh classification were included. results: a total sample of 92 patients was obtained: 49 with severe malaria and 43 with uncomplicated malaria. from the total sample, 68.5% were women and the median age of 21.5 years (min 1-max 80). of the patients with diagnosis of severe malaria, 59.2 % were women. the more frequent parasite species was plasmodium falciparum. severe malaria was more frequent among patients classified with blood group o (65.3 %) and positive rh (93.9 %), but this association was not statistically significant. conclusion: even though severe malaria was more frequent among patients classified with blood group o and positive rh, an association between blood group and severe malaria could not be established. the controversial association of these variables previously found in other populations could be probably explained by the demographic distribution and characteristics of those.
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