151 research outputs found

    Eukaryotic microbial diversity of phototrophic microbial mats in two Icelandic geothermal hot springs

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    The composition of the eukaryotic community and the three-dimensional structure of diverse phototrophic microbial mats from two hot springs in Iceland (Seltun and Hveradalir geothermal areas) were explored by comparing eukaryotic assemblages from microbial mats. Samples were collected in July 2007 from 15 sampling stations along thermal and pH gradients following both hot springs. Physicochemical data revealed high variability in terms of pH (ranging from 2.8 to 7), with high concentrations of heavy metals, including up to 20 g Fe/l, 80 mg Zn/l, 117 mg Cu/l, and 39 mg Ni/l at the most acidic sampling points. Phylogenetic analysis of 18S rDNA genes revealed a diversity of sequences related to several taxa, including members of the Bacillariophyta, Chlorophyta, Rhodophyta, and Euglenophyta phyla as well as ciliates, amoebae, and stramenopiles. The closest relatives to some of the sequences detected came from acidophilic organisms, even when the samples were collected at circumneutral water locations. Electron microscopy showed that most of the microecosystems analyzed were organized as phototrophic microbial mats in which filamentous cyanobacteria usually appeared as a major component. Deposits of amorphous minerals rich in silica, iron, and aluminium around the filaments were frequently detected. [Int Microbiol 2010; 13(1):21-32

    Calidad nutricional de la alimentación y su asociación con la calidad de vida relacionada con la salud en adolescentes de escuelas secundarias de gestión estatal de Córdoba, año 2018

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    Fil: Aguilera, Melisa Alejandra. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Fil: Cerenich, Constanza. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Fil: González, Débora Virginia. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Introducción: Durante la adolescencia, la autopercepción de la salud y de la imagen corporal puede influir en los modos de alimentarse, aunque a nivel local, ésta es una relación poco estudiada. Objetivo: Analizar la relación entre la calidad nutricional de la alimentación y la CVRS en adolescentes (13-16 años) de escuelas secundarias estatales de la ciudad de Córdoba, 2018. Metodología: Estudio correlacional de corte transversal en 134 adolescentes (13-16 años) asistentes, en 2018, a escuelas estatales de Córdoba. Se valoró la ingesta alimentaria usando un cuestionario de frecuencia alimentaria. Se realizó una adaptación del Healthy Eating Index para puntuar los consumos según la adherencia a recomendaciones de 12 componentes: Frutas totales, Vegetales no amiláceos, Lácteos, Legumbres, Granos enteros, Total de alimentos proteicos, Pescados y frutos de mar, Granos refinados, Ácidos grasos, Azúcares agregados, Sodio, Grasas saturadas. El puntaje final fue categorizado en: alimentación saludable (>80 puntos), regular (50-80 puntos) y poco saludable (<50 puntos). La CVRS fue evaluada con el cuestionario KIDSCREEN y se analizó el puntaje total y de las dimensiones autopercepción y bienestar físico. Se aplicó test de Chi-cuadrado para valorar la asociación entre la calidad de la alimentación y CVRS (α=0,05). Resultados: El 88,81% de los/as adolescentes presentó una alimentación poco saludable y ninguno/a evidenció una alimentación saludable. Un 48,3% valoró su CVRS como baja. La autopercepción acumuló mayor proporción de adolescentes en la categoría alta (35,1%) y el bienestar físico en la categoría baja (45,5%), siendo significativamente mayor en mujeres (P=0,023). La calidad nutricional de la alimentación se asoció con la Autopercepción (P=0,032), pero no con el bienestar físico ni con el puntaje total de la CVRS. Conclusiones: La relación observada entre la calidad en la alimentación y la autopercepción amerita profundizar su estudio en esta población cuyas particularidades requieren atención por parte de los equipos sanitarios para la promoción de la salud.Fil: Aguilera, Melisa Alejandra. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Fil: Cerenich, Constanza. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina.Fil: González, Débora Virginia. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Escuela de Nutrición; Argentina

    Elaboración e Implementación de un manual de procedimientos contables para la empresa Optilosa "Óptica Lozano S.A. ", de la Ciudad de Guayaquil año 2012.

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    El problema que presenta la empresa Optilosa “Óptica Lozano S.A. “, se origina por no disponer dentro de la organización, un departamento contable, se maneja con un contador independiente que desconocían en un 90% de las actividades de la organización. No se verificaban lo documentos fuentes, no cuenta con un manual de procedimientos ni se aplicaban los principios de la contabilidad generalmente aceptados. La falta de controles y de reportes es lo que ocasionaba que no se tengan datos oportunos, confiable, la información presentada a terceros sea inconsistente. Nuestra responsabilidad como profesional al estar frente a estas empresas es solucionar la problemática y políticas contables apegados a la normativa y técnica de contabilidad vigente ene l país. Con esto se garantiza obtener información oportuna, veraz, confiable y que los estados financieros presenten razonablemente la situación financiera de la empresa

    Factors Associated with Exposure to Dietary Bisphenols in Adolescents

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    Obesogenic endocrine-disrupting chemicals, such as bisphenol A (BPA) and its analogue bisphenol S (BPS), seem to play an important role in the development of obesity, although contradictory results have been reported. The aim of the present study was to conduct a gender analysis of the factors associated with exposure to dietary bisphenols in 585 Spanish adolescents. Dietary BPA and BPS exposure was assessed using a food frequency questionnaire. Foods and macronutrients accounting for more than 95% of energy intake were selected for analysis. Stepwise regression was used to estimate the foods that most contributed to dietary bisphenol exposure in the sample. Gender-related factors associated with greater dietary bisphenol exposure were evaluated using multivariate logistic regression models. Canned tuna was the main dietary source of BPA and BPS in both adolescent boys and girls. Overweight/obese girls showed a higher risk of high dietary exposure to BPA (odds ratio (OR): 3.38, 95% confidence interval (CI): 1.25–9.07) and total bisphenols (OR: 2.81, 95% CI: 1.03–7.67) in comparison with girls with a BMI lower than 25 kg/m2 . Present results indicate a positive association of dietary exposure to both total bisphenols and BPA with being overweight/obese in adolescent girls.GP/EFSA/ENCO/380 2018/03/G04: OBEMIRISK: Knowledge platform for assessing the risk of bisphenol on gut microbiota and its role in obesogenic phenotypes: looking for biomarkers’ frameworkPlan Estatal de I + D + I 2013–2016FEDER-ISCIII PI17/01758FEDER-Consejería de Salud y FamiliasJunta de Andalucía PE-0250–2019FEDER-Junta de Andalucía-Consejería de Transformación Económica, Industria, Conocimiento y Universidades/ Proyecto P18-RT-4247Fundación Mapfre MAPFRE201

    Influence of Women Age on Berries Consumption: The Role of Liking and Properties of Berries as Determinants of Their Intake

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    Due to the benefits of berries to health and aging in women and the fact that as women age, they are increasingly concerned about remaining healthy and looking young, the aim of this paper is to determine if the consumption of berries among women is influenced by their age; also, to identify if the reasons why berries are ingested vary with age. This study evaluated berries intake and motives of consumption of 240 adult women from Jalisco, Mexico, ranging from 18 to 65 years old, divided into three groups: Young Adult Women (YAW, from 18 to 35 years old), Middle-Aged Adult Women (MAW, from 36 to 55 years old) and Older Adult Women (OAW, from 56 to 65 years old). Berries (blueberry, raspberry, strawberry and blackberry) consumption was collected by an adapted Food Consumption Frequency Questionnaire validated for Mexican population, and intake reasons were assessed by a qualitative section. Spearman’s Correlations, ANOVA and Bonferroni test were done. While berries consumption lowers in the MAW group, it increases when women reach the advanced adulthood. YAW consumes berries mainly because of liking and OAW due to its properties. Only 60% of OAW consumes berries and frequency of consumption is occasional in all women, so policies to increase berries intake are needed

    Dietary exposure to parabens and body mass index in an adolescent Spanish population

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    This work was carried out in line with 'GP/EFSA/ENCO/380 2018/03/G04: OBEMIRISK: Knowledge platform for assessing the risk of Bisphenols on gut microbiota and its role in obesogenic phenotype: looking for biomarkers'. This research was also funded by Plan Estatal de I + D + I 2013-2016 and co-funded by FEDER-ISCIII PI17/01758, FEDER-Consejeria de Salud y Familias, Junta de Andalucia PE-0250-2019, FEDER/Junta de Andalucia-Consejeria de Transformacion Economica, Industria, Conocimiento y Universidades/Proyecto P18-RT-4247. All individuals participating in this research signed an informed consent form and the study protocol was approved by the Ethics Com-mittee of the University of Granada.Parabens are alkyl esters of p-hydroxybenzoic acid which are extensively used in cosmetics, pharmaceuticals and foodstuffs due to their antimicrobial properties. The most commonly used parabens are methyl-(MeP), ethyl- (EtP), propyl-(PrP) and butyl-(BuP) paraben. Most human exposure to parabens is achieved through the consumption of food or pharmaceutical products and the use of personal care products. However, studies on dietary parabens exposure and the associated factors are very scarce. The main aim of the present study was to explore factors associated with dietary exposure to parabens in Spanish adolescents according to gender. Dietary data and anthropometric measures were collected from 585 adolescents (53.4% boys) aged 12–16 years. Parabens exposure through diet was assessed using a food frequency questionnaire with food products providing more than 95% of energy and macronutrient intake being included in analysis. Stepwise regression was used to identify the foods that most contributed to parabens intake. Logistic regression was used to evaluate factors predicting higher dietary exposure to parabens. The main contributors to dietary MeP, EtP, PrP and BuP exposure in adolescent boys were eggs (41.9%), canned tuna (46.4%), bakery and baked goods products (57.3%) and pineapple (61.1%). In adolescent girls, the main contributors were apples and pears (35.3%), canned tuna (42.1%), bakery and baked goods products (55.1%) and olives (62.1%). Overweight/obese girls were more likely to belong to the highest tertile of overall parabens intake (odds ratio [OR]: 3.32; 95% confidence interval [95% CI]: 1.21–9.15) and MeP (OR: 3.05; 95% CI: 1.14–8.12) than those with a body mass index lower than 25 kg/m2. These findings suggest a positive association between dietary exposure to parabens and overweight/obesity in adolescent girls.Plan Estatal de I + D + I 2013-2016FEDER-ISCIII PI17/01758FEDER-Consejeria de Salud y FamiliasJunta de Andalucia PE-0250-2019FEDER/Junta de Andalucia-Consejeria de Transformacion Economica, Industria, Conocimiento y Universidades/Proyecto P18-RT-424
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