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Search Results: 1 - 10 of 10261 matches for " Javier;Moguel "
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Sociedad, familia y medios de comunicación de masas: jalones para su revisión
Carmen Moguel
Historia Actual Online , 2007,
Abstract: El educador actual debe ser testigo y adaptarse a los nuevos cambios sociales. El presente artículo pretende analizar los criterios con que se introducen los medios de comunicación de masas en la sociedad actual, donde la familia juega un papel importante. La sociedad de la información está generando un nuevo modelo y nosotros debemos estudiar los cambios acaecidos, no basta con ser testigos, hay que analizarlos. El texto pretende mostrar algunas reflexiones sobre la sociedad, la familia y los medios de comunicación de masa en el mundo actual.
House improvements and community participation in the control of Triatoma dimidiata re-infestation in Jutiapa, Guatemala
Monroy, Carlota;Bustamante, Dulce Maria;Pineda, Sandy;Rodas, Antonieta;Castro, Xochitl;Ayala, Virgilio;Qui?ónes, Javier;Moguel, Bárbara;
Cadernos de Saúde Pública , 2009, DOI: 10.1590/S0102-311X2009001300016
Abstract: the deterioration or absence of plaster walls in houses and poor hygienic conditions are the most important risk factors for indoor triatoma dimidiata infestation in guatemala. a cross-disciplinary study was conducted addressing t. dimidiata infestation, household hygiene, and housing construction. the study focused on local materials and cultural aspects (including gender roles) that could lead to long-term improvements in wall construction. a new plaster mix for walls was developed on the basis of laboratory studies on construction materials recommended by local villagers. four villages with persistent (post-spraying) t. dimidiata infestation were studied. in two villages, an ecosystem approach was implemented, and the homeowners conducted wall improvements and household sanitation with the support of the interdisciplinary team (the ecosystem intervention). in the other two villages, a vector control approach based on insecticide spraying was adopted (traditional intervention). both interventions were associated with a reduction in t. dimidiata infestation, but only the ecosystem approach produced important housing improvements (sanitation and wall construction) capable of preventing t. dimidiata re-infestation in the long term.
Risk factors for intradomiciliary infestation by the Chagas disease vector Triatoma dimidiatain Jutiapa, Guatemala
Bustamante, Dulce Maria;Monroy, Carlota;Pineda, Sandy;Rodas, Antonieta;Castro, Xochitl;Ayala, Virgilio;Qui?ónes, Javier;Moguel, Bárbara;Trampe, Ranferi;
Cadernos de Saúde Pública , 2009, DOI: 10.1590/S0102-311X2009001300008
Abstract: seventeen variables were evaluated as possible risk factors for the intradomiciliary infestation with triatoma dimidiata in 644 houses in jutiapa, guatemala. during 2004 the houses were assessed for vector presence and evaluated for hygiene, cluttering, material comfort, construction conditions and number of inhabitants, among other factors. chi-square analysis detected significant associations between vector presence and eight variables related to domestic sanitary and construction conditions. log-linear models showed that regardless of the age of the house, the odds of vector presence were 4.3 and 10 times lower in houses with a good socioeconomic status compared with poor and very poor houses respectively. log-linear models also pointed to a greater chance of vector presence when walls lacked plastering (3.85 times) or walls had low quality-incomplete plastering (4.56 times), compared with walls that were completely plastered. control strategies against t. dimidiata should include the introduction of better-quality but inexpensive plastering formulations and better sanitation practices should also be promoted among the population. such control strategies should not only reduce or eliminate infestation, but also prevent vector reinfestation.
Efectos de la correspondencia entre educación y empleo de los jóvenes en el mercado de trabajo mexicano
López Moguel, María del Rosario;
Revista mexicana de investigación educativa , 2009,
Abstract: this paper analyzes the effects of the relation between young people's education and employment in the labor market. we started by assuming that a difference exists between individuals who are working in the occupation for which they were educated, and individuals who were not educated for their work. the hypothesis is that a high degree of correspondence between education and occupation implies better performance and earnings. the methodology was based on empirical ex-post observation at a given moment in time. to measure the effects of the relation between education and employment and to observe young people's performance in the labor market, use was made of gini indexes and a wage model.
Estrategias sociales: de la sobrevivencia a la contingencia
Reyna Moguel Viveros,Sandra Urania Moreno Andrade
Papeles de población , 2005,
Abstract: Este artículo emprende una discusión en torno al concepto de "estrategias sociales", apuntando las inconsistencias teóricas y metodológicas de éste, así como la forma en que puede ser abordado desde las críticas sociológicas a los supuestos clásicos weberianos de la acción social. Se observa que el concepto ha tenido cambios que lo llevan a apuntalar una perspectiva moderna neoliberal de la sociedad donde los individuos pobres pueden organizarse frente a las restricciones que les impone la estructura social, participando sólo como sociedad civil anónima (unidad doméstica) a través de dise ar un cúmulo de estrategias sociales que les permite "sobrevivir" o "reproducirse". Esta perspectiva puede ser revertida con la noción de "contingencias provocadas dentro de los ámbitos globalizados del Estado, del mercado y del deterioro ambiental".
Parasitología básica. Helmintología
Bárbara Moguel-Rodríguez
Biomédica , 2011,
Abstract:
Polyphenols, Ascorbic Acid and Carotenoids Contents and Antioxidant Properties of Habanero Pepper (Capsicum chinense) Fruit  [PDF]
Maira Rubi Segura Campos, Karen Ramírez Gómez, Yolanda Moguel Ordo?ez, David Betancur Ancona
Food and Nutrition Sciences (FNS) , 2013, DOI: 10.4236/fns.2013.48A006
Abstract:

Their high bioactive compounds content and importance as dietary antioxidants has increased interest in Capsicum fruit. The fruit of seven Capsicum chinense Jacq. var. habanero genotypes grown in Yucatan, Mexico, were analyzed to quantify their phenolic compounds, carotenoids and ascorbic acid contents, and to measure their free radical scavenging (ABTS assay) and antioxidant activities (β-carotene/linoleic acid assay). Phenolics (20.54 to 20.75 mg/100 g sample), carotenoids (1.00 to 1.26 mg/100 g sample) and ascorbic acid contents (187.24 to 281.73 mg/100 g sample) varied between genotypes. Trolox equivalent antioxidant capacity (TEAC) ranged from 1.55 to 3.23 mM/mg sample. During the 120-min decolorization trial, antioxidant capacity decreased over time in the studied genotypes. Values ranged from 36%to 57% β-carotene bleaching during the first 30 minutes. Fruit from all seven studied genotypes are good antioxidant sources and hold promise as natural ingredients in functional foods.

Rapid HPLC Method for Determination of Rebaudioside D in Leaves of Stevia rebaudiana Bertoni Grown in the Southeast of México  [PDF]
Irma Aranda-González, Yolanda Moguel-Ordo?ez, David Betancur-Ancona
American Journal of Analytical Chemistry (AJAC) , 2014, DOI: 10.4236/ajac.2014.513090
Abstract: Stevia leaves contain glycosides on which biological activity and sweetening capacity has been reported. Besides the main glycosides—stevioside and rebaudioside A—there are minor glycosides that may contribute to the activity and thus it is important to quantify them. Rebaudioside D is one of the minor glycoside present in S. rebaudiana leaves and there are no reports of a validated method to quantify it. Therefore a simple and sensitive high performance liquid chromatography (HPLC) method was validated for the determination of rebaudioside D in leaves of Stevia rebaudiana B. grown in the southeast of México. HPLC method was performed using a C18 column (250 mm × 4.6 mm, 5 μm) and UV detector set at 210 nm. The mobile phase consisted of 32:68 (v/v) mixture of acetonitrile and sodium phosphate buffer (10 mmol/L, pH 2.6), set to a flow rate of 1.0 ml/min. The calculated parameters were: sensitivity, linearity, limit of detection (LOD), limit of quantification (LOQ), accuracy and precision. The retention time of rebaudioside D was found to be 3.47 min ± 0.04 (S.D.). The calibration curves were linear over the working range (25 - 150 μg/ml), with correlation coefficient ≥0.99 and determination coefficient ≥0.98. The calculated limit of detection (LOD) was 8.53 μg/ml, while the limit of quantitation (LOQ) was 25.85 μg/ml. The percent recoveries of fortified samples were 100% ± 10% and precision relative standard deviation was ≤2.79%. The criteria of validation showed accuracy, linearity, and precision; therefore the method is suitable for quantitative analysis of rebaudioside D in Stevia rebaudiana leaves. Rebaudioside D content (g/100g) in Morita II and Criolla varieties grown in the southeast of Mexico were 0.43 and 0.46, respectively with no significant differences (p > 0.05) between them.
Determination of Rebaudioside A and Stevioside in Leaves of S. rebaudiana Bertoni Grown in México by a Validated HPLC Method  [PDF]
Irma Aranda-González, Yolanda Moguel-Ordo?ez, David Betancur-Ancona
American Journal of Analytical Chemistry (AJAC) , 2015, DOI: 10.4236/ajac.2015.611083
Abstract: Stevia rebaudiana is a plant with high sweetening capacity due to its content of glycosides, mainly stevioside and rebaudioside A. Several techniques have been used to determine the concentrations of glycosides in Stevia, although an HPLC method is recommended by the FAO/WHO-JECFA. Varieties of Stevia have been recently grown in Mexico, with no previous report of glycosides by a validated method. The aim of this study was to validate an isocratic HPLC method for content determination of main glycosides in the leaves of Stevia cultivated in Mexico. HPLC method was performed using a C18 column (250 mm × 4.6 mm, 5 μm) and UV detector set at 210 nm. The mobile phase consisted of 32:68 (v/v) mixture of acetonitrile and sodium-phosphate buffer (10 mmol/L, pH 2.6), set to a flow rate of 1.0 mL/min. Rebaudioside A and stevioside were determined in two Stevia varieties: Morita II and Criolla, and also validation parameters were calculated. Rebaudioside A content (g/100g) in Morita II was 15.15 ± 0.02 while stevioside was 3.97 ± 0.003; in the case of Criolla they were 4.03 ± 0.01 and 8.80 ± 0.14, respectively (p < 0.001). The recoveries of fortified samples were 100% ± 10% and precision RSD was ≤6.27%. The criteria of validation showed accuracy, linearity (≥0.99), and precision; therefore, the determination of glycosides was performed with reliability.
Tratamiento con toxina botulínica para estrabismo en retraso psicomotor
Moguel,S; Martínez-Oropeza,S; Orozco,L;
Archivos de la Sociedad Espa?ola de Oftalmología , 2004, DOI: 10.4321/S0365-66912004000900006
Abstract: purpose: strabismus is associated with 80% of people with psychomotor retardation. surgical treatment is difficult owing to brain instability. the aim of this study is to determine the efficacy of a direct application of botulinum toxin in cases strabismus related to psychomotor retardation. methods: this is a retrospective, longitudinal, observational study of treatment of strabismus associated to brain damage (under the laws of health of mexico) using a direct application technique of botulinum toxin, considering age, type of strabismus, number of toxin applications, response and cause of brain damage. results: we analyzed 30 patients, age: 3.5 years old (s.d.: 2), follow-up12.7 (s.d.: 2.3 months). eighty percent of the patients had moderate psychomotor retardation and 20% had a severe retardation. the response was good in 44% and moderate in 24%, there were no cases without response. the patients were treated with 1.7 (s.d.:1) injections of toxin. age and type of strabismus was not related to success of treatment (x2: 9.4; 7.8 to null hypothesis). first application of toxin determines the response to treatment (fisher test: <0.05). moderate retardation was related to better response. bad results were related to unstable brain disease. conclusions: the difficulty and prognosis of surgical treatment of strabismus in patients with brain damage and psychomotor retardation, cuases us to consider the use of botulinum toxin as the first choice for this cases.
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