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Search Results: 1 - 10 of 35362 matches for " Luisinho Eder Salas Martínez "
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Rese a de "Historia de El Carmen de Bolívar y su tabaco en los Montes de María. Siglos XVIII - XX" de Wilson Blanco Romero
Luisinho Eder Salas Martínez
Memorias: Revista Digital de Historia y Arqueología desde el Caribe , 2011,
Abstract:
Association between Metabolic Syndrome and Erythrocyte Fatty Acid Profile in Mexican Adolescents: A Trans Fatty Acid Approach  [PDF]
Martínez-Razo Gabriel, Martínez-Basila Azucena, Salas-Fernández Alejandra, Maldonado-Hernández Jorge
Food and Nutrition Sciences (FNS) , 2013, DOI: 10.4236/fns.2013.49A1009
Abstract:

The type of fat consumed in the Mexican diet could predispose to the development of Metabolic Syndrome (MS) which has been associated with an increased risk to develop cardiovascular disease and type 2 diabetes mellitus. Our study included adolescents between 12 and 16 years of age, divided in two groups: Control Group (n = 31) and MS Group (n = 44). Waist circumference, blood pressure, fasting glucose, triglycerides, and HDL-cholesterol were determined. Erythrocytes’ fatty acids methyl esthers were quantified using gas chromatography with ionized flame detector. We identified 16 fatty acids (FA) with chain lengths from C12 to C24, with emphasis in four trans FA (TFA) isomers: vaccenic (C18:1n7t), elaidic (C18:1n9t), linoelaidic (C18:2n6t), and conjugated linoelaidic acids (C18:2n7t). MS Group had a less proportion of: myristic (C14), palmitoleic (C16:1), C18:1n7t, and linoleic acids (C18:2); and a higher one of C18:1n9t, C18:2n7t, and nervonic acids (C24:1) when compared to the control group. C24:1 and C18:1n9t had a significant positive association with MS (OR = 14.17 and OR = 12.94, respectively); whereas C14 (OR = 0.14), C18:1n7t (OR = 0.14), and C18:2 (OR = 0.22) appear to have a protective effect against the disease. The proportion of specific FAs in erythrocytes’ membranes differs between adolescents with MS and healthy controls; these FA not only showed a strong association with MS, but also correlated with most of its individual components. Interestingly, TFA displayed an antagonic behavior; while C18:1n9t had a strong association with MS, apparently C18:1n7t confers a protective effect; these results suggest that analyzing each TFA separately will constitute a more accurate approach to determine the role of TFAs in the pathogenesis of MS or other related metabolic disorders.

Comparative Study between D2EHPA and Cyanex 272 as Extractants of Mn(II) from a Leached Liquor Produced by Reductive Leaching of a Pyrolusite Ore with SO2  [PDF]
R. Pérez-Garibay, J. Martínez-Jiménez, A. Uribe-Salas, A. Martínez-Luévanos
Engineering (ENG) , 2012, DOI: 10.4236/eng.2012.49067
Abstract: This paper compares the efficiency of D2EHPA and Cyanex 272 to extract the divalent manganese cation from an actual leaching solution obtained by reductive leaching of a low-grade pyrolusite ore, using SO2 gas. The studied variables were the extractant concentration in the organic phase, the pH of the leached liquor and the volume ratio between organic phase and leached liquor. It was observed that D2EHPA is a better extractant than Cyanex272. Therefore, with the best experimental conditions found, both extractants reach a manganese recovery around 95% with five extraction stages conducted under the following conditions: 25?C, O/A = 2, 10% volume of extractant concentration in the organic phase, pH of the leached liquor before the mixing between 8 and 8.5, and one minute of mixing time for each extraction stage.
On Solvable Potentials, Supersymmetry, and the One-Dimensional Hydrogen Atom  [PDF]
R. P. Martínez-y-Romero, H. N. Núnez-Yépez, A. L. Salas-Brito
Communications and Network (CN) , 2010, DOI: 10.4236/cn.2010.21009
Abstract: The ways for improving on techniques for finding new solvable potentials based on supersymmetry and shape invariance has been discussed by Morales et al. [1] In doing so they address the peculiar system known as the one-dimensional hydrogen atom. In this paper we show that their remarks on such problem are mistaken. We do this by explicitly constructing both the one-dimensional Coulomb potential and the superpotential associated with the problem, objects whose existence are denied in the mentioned paper.
Agentes etiológicos de onicomicosis diagnosticadas en el laboratorio de micología médica de la Universidad de Costa Rica
Salas-Campos,Ingrid; Gross-Martínez,Norma T;
Acta Médica Costarricense , 2012,
Abstract: background and aim: among the onychodistrophies, onychomycosis are the most frequently encountered. this infection not only constitutes an esthetic problem for the patients, but can also affect their daily activities. for dermatologists, it is crucial to make a differential diagnosis; thus, the medical mycology laboratory plays an important role to achieve this purpose. the fungal agents most frequently encountered are the dermatophytes, however, other filamentous non-dermatophyte fungi have been isolated and are known to be less susceptible to antifungals. in the present work, the frequency of onychomycosis among patients attending the medical mycology laboratory, ucr, was studied during four years, according to the age and sex of the patients, as well as the isolated etiological agents identified. methods: the study included all patients that requested the community service provided by the department of medical mycology, school of microbiology, ucr, between january 2007 and december 2010 and that showed nail alterations suspicious for onychomycosis. the age and sex of each patient were registered and samples were processed for direct microscopy and culture. results: a total of 431 nail samples were collected, of which 85.4% were toenails and 14.6% fingernails. the mean age of the patients was 49 years, of which 64% were females and 36% males. onychomycosis was diagnosed, either by direct microscopy and culture, or only with positive direct microscopy, in 73.4% of the sample population, of which 89.4% were toenails and 10.6% fingernails. trichophyton rubrum was the etiological agent most frequently isolated from toenails, followed by fusarium spp. c albicans was the most frequent fungal agent observed in fingernails. conclusion: the diagnosis of onychomycosis relies upon both the clinical and laboratory diagnosis. dermatophytes, yeasts and non-dermatophyte filamentous fungi were identified in the population studied. these findings should be considered due to their
Uso de la citología vaginal en mujeres afiliadas al régimen subsidiado atendidas en la Unidad Hospitalaria La Manga de Barranquilla (Colombia), 2006
Navarro Lechuga,Edgar; De las Salas Martínez,Roxana Patricia;
Revista Salud Uninorte , 2008,
Abstract: objective: establish the papanicolau (pap) smear prevalence amongst women 18 - 65 years old, affiliated to the susbsidiary regime and attended in the hospital la manga of barranquilla. methods: cross-sectional study that included 573 women from 18 - 65 years. the information was obtained by a survey. the statistical analyses were performed using epi-info 6.04. results: the average age was 39,46 years (sd+/-: 13.98). the papanicolau (pap) smear prevalence was of 34,2% (95% ci 30.35-38.27). the gynecological symptom increases the use of the pap to 47,2% (95% ci 33,51 - 61,23) compared with its absence in 32,9% (95% ci 28,89 - 37,13). the proximity of the institution promotes the use of pap in 35,2% (95% ci 30,80 - 39,88) compared with the women that take some kind of transportation 26,7% (95% ci 18,72 - 36,34). association was found association between the no-use of pap smear and to be between 60-65 years old (or=1.90 ic 95% 1.01-3.64), the no-knowledge about the pap smear utility (or=3.27 ic 95% 1.45-7.66), not have had childbirths (or=3.70 ic 95% 1.26-14.75), not use contraceptive methods (or=1.57 ic 95% 1.09-2.26) and absence of previous history of vaginal infection (or=1.65 ic 95% 1.10-2.47). conclusions: the pap smear prevalence was low for the studied population. it is necessary to extend the activities of health promotion and disease prevention to avoid the loss of opportunities at health programs.
Lorca Taller del Tiempo
Ramón Martínez Medina,Elena Montaner Salas
Papeles de Geografía , 2003,
Abstract:
Agentes etiológicos de onicomicosis diagnosticadas en el laboratorio de micología médica de la Universidad de Costa Rica Etiological agents of onychomycosis diagnosed in the medical mycology laboratory of the University of Costa Rica
Ingrid Salas-Campos,Norma T Gross-Martínez
Acta Médica Costarricense , 2012,
Abstract: Justificación y objetivos: Entre las onicodistrofias, la onicomicosis es la afección más frecuente. Esta infección no solo representa un problema estético para el paciente, sino que puede afectar sus actividades diarias. Para el dermatólogo se hace indispensable realizar el diagnóstico diferencial, por lo que el laboratorio de micología médica es de gran ayuda para este propósito. En cuanto a los agentes etiológicos incriminados, los dermatofitos son los más frecuentes; sin embargo, otros hongos filamentosos no dermatofitos se han aislado, cuya sensibilidad a los antimicóticos es menor. En este trabajo se estudió la frecuencia de las onicomicosis diagnosticadas en el laboratorio de Micología Médica de la UCR durante cuatro a os, según edad y sexo de los pacientes, así como agentes etiológicos identificados. Métodos: Se incluyó a todos los pacientes que solicitaron el servicio de acción social que brinda la sección de Micología Médica, Facultad de Microbiología, Universidad de Costa Rica, entre enero del 2007 a diciembre del 2010 y que presentaban alteraciones ungueales sospechosas de onicomicosis. Se registró la edad y sexo de los pacientes y las muestras se procesaron por examen directo y cultivo. Resultados: Se procesaron 431 muestras de u as, el 85,4% eran de pie y el 14,6% de mano, la edad promedio de los pacientes fue de 49 a os, el 64% eran mujeres y el 36% eran hombres. En el 73,4% se diagnosticó onicomicosis, ya sea por examen directo positivo y cultivo positivo, o solo con el examen directo, de las cuales 89,4% eran u as de pie y 10,6% u as de manos. De las u as de los pies se aisló más frecuentemente Trichophyton rubrum y en segundo lugar Fusarium spp. En u as de manos C. albicans fue el agente etiológico más frecuente. Conclusión: En el diagnóstico de las onicomicosis se debe considerar tanto la clínica como los hallazgos de laboratorio. En la población estudiada se identificaron dermatofitos, levaduras y hongos filamentosos no dermatofitos, lo que es importante tener en cuenta por las implicaciones en la elección del tratamiento. Background and aim: Among the onychodistrophies, onychomycosis are the most frequently encountered. This infection not only constitutes an esthetic problem for the patients, but can also affect their daily activities. For dermatologists, it is crucial to make a differential diagnosis; thus, the medical mycology laboratory plays an important role to achieve this purpose. The fungal agents most frequently encountered are the dermatophytes, however, other filamentous non-dermatophyte fungi have been isolated and are kno
Uso de la citología vaginal en mujeres afiliadas al régimen subsidiado atendidas en la Unidad Hospitalaria La Manga de Barranquilla (Colombia), 2006
Edgar Navarro Lechuga,Roxana Patricia De las Salas Martínez
Revista Salud Uninorte , 2008,
Abstract: Objetivo: Determinar prevalencia de uso de la citología vaginal en mujeres de 18 a 65 a os de edad afiliadas al régimen subsidiado y atendidas en la Unidad Hospitalaria La Manga de Barranquilla. Métodos: Estudio descriptivo transversal que incluyó a 573 mujeres de 18 a 65 a os. La información se obtuvo a través de un cuestionario. El análisis estadístico se realizó usando Epi-info 6.04d. Resultados: El promedio de edad fue de 39.46 a os (DE+/-: 13.98). La prevalencia de uso reciente de la citología vaginal fue de 34.2% (IC 95% 30.35 38.27). La presencia de síntoma ginecológico aumenta el uso de la citología en un 47.2% (IC 95% 33.51 - 61.23) frente a su ausencia con un 32.9% (IC 95% 28.89 - 37.13). La cercanía de la institución promueve el uso de la citología en un 35.2% (IC 95% 30.80 - 39.88) frente a las mujeres que usan un medio de transporte: 26.7% (IC 95% 18.72 - 36.34). Se encontró asociación entre el no uso de citología vaginal y estar entre 60-65 a os (OR=1.90 IC 95% 1.01-3.64), no conocer la utilidad de la prueba (OR=3.27 IC 95% 1.45-7.66), no haber tenido partos (OR=3.70 IC 95% 1.26-14.75), no usar métodos anticonceptivos (OR=1.57 IC 95% 1.09-2.26) y tener ausencia de antecedente de infección vaginal (OR=1.65 IC 95% 1.10-2.47). Conclusiones: La prevalecía de uso reciente de la citología vaginal fue baja para la población estudiada. Es necesario ampliar las actividades de promoción de la salud y prevención de la enfermedad para evitar la pérdida de oportunidades en programas de salud.
Leptina, lípidos y sobrepeso en escolares de sexto grado de un área urbano-marginal
Laclé,Adriana; Takayuki,Tamada; Serrú,Lisseth; Salas,Pilar; Martínez,Virya; Salas,Edwin;
Acta Médica Costarricense , 2003,
Abstract: introduction: the hormone called leptine has been associated with severas factors of the metabolic syndrome, including hypertension, obesity, insulin resistance and high density lipoprotein, not only in adults but also in adolescents. in costa rica the levels of leptinemia in adolescents and its relationship with obesity and lipids is unknown. objective: to describe the leptinemia levels in sixth graders in an urban- marginal area, and its association with lipids and overweight. material and methods: transversal study was carried on in the year 2001, with a representive sample sixth graders of 12 schools of the area desamparados 3 (n= 220). previous written consent of parents and scholars, weight and height was measured and a 12 hour plasma sample was taken to quantify leptine (irma,) total cholesterol, hdl- colesterol and triglicerides; the ldl-col was calculated. results: the leptinemia levels did not follow a normal distribution, so non-parametric analysis was used. its range varied from a minimum value of 1.0 ng/ml to a maximum value of 42.8 ng/ml in males, and from 3.9 ng/ml to 65.2ng/ml in females. the comparison of quartiles by sex was highly significant (p <0.0003); having higher levels in females. the plasma leptine concentration showed a positive correlation with the body mass index (bmi) (rs= 0.43, p<5.7e-11) and triglicerides (rs= 0.31,p<4.3e-06), but a negative correlation with hdl- cholesterol (rs -0.20, p <0.002); there was no correlation with total cholesterol or ldl- cholesterol. when the correlation was done by sex, the positive correlation was given mainly by the feminine sex (rs 0.59, p <1.05e-12) and its was moderate. the triglicéridos behavior was similar in both sexes, not so with the hdl, where the negative correlation was only found in females (rs -0.40 p <5.1e-06), but it was weak. when the quartiles of leptine were compared with the children's nutritional status a significant differences was found in both sexes between the categories of no
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