119 research outputs found

    Child Care Arrangements in Affluence and Poverty

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    A study of the attitudes of 40 mothers toward their child care arrangements tested hypotheses concerning the conditions of economic and child care necessity under which mothers of two socio-economic groups would be satisfied with their arrangements. It was hypothesized that the satisfaction with an arrangement would be associated inversely with economic necessity and child care necessity. A prediction was also made that the mothers\u27 expressive satisfactions with the child care arrangements (benefits to the child and relationship to the sitter) would only be realized after the instrumental necessities of convenience and dependability of the arrangement were met. Interest in this study developed from Perry et al. (1967) where satisfaction with child care arrangements of employed mothers was studied. However, this study broadened the area of investigation to include all mothers using child care arrangements. A sample of 40 mothers was chosen, 20 from an upper middle class residential area, and 20 women receiving Aid to Dependent Children. The attitudes of these women were assessed through an interview schedule, a Likert scale of satisfaction items, and an independent rating by the interviewer. Four case studies of two mothers from each group were used to enrich the study with further descriptive data on the respective life styles of the two socioeconomic groups. No difference was found between the two samples in the level of satisfaction with the child care arrangement. However, the groups did differ in the pattern of satisfactions reported. Guttman scale patterns of the four subscales (convenience, money, benefits to child, and relationship to sitter) were reversed for the two groups. This difference in patterns was interpreted as a reflection of the socioeconomic standing and life circumstances of the mothers

    Recital: Opera Workshop

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    Branch retinal vein occlusion associated with quetiapine fumarate

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    <p>Abstract</p> <p>Background</p> <p>To report a case of branch retinal vein occlusion in a young adult with bipolar mood disorder treated with quetiapine fumarate.</p> <p>Case Presentation</p> <p>A 29 years old gentleman who was taking quetiapine fumarate for 3 years for bipolar mood disorder, presented with sudden vision loss. He was found to have a superior temporal branch retinal vein occlusion associated with hypercholesterolemia.</p> <p>Conclusion</p> <p>Atypical antipsychotic drugs have metabolic side effects which require regular monitoring and prompt treatment.</p

    Comparison between Wild and Hatchery Populations of Korean Pen Shell (Atrina pectinata) Using Microsatellite DNA Markers

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    Pen shell (Atrina pectinata) is a popular food source with a high commercial value in a number of Asian Pacific areas. The natural A. pectinata population has been declining continuously over the past several decades. Microsatellite DNA markers are a useful DNA-based tool for monitoring the genetic variation of pen shell populations. In this study, 20 polymorphic microsatellite (MS) DNA markers were identified from a partial genomic pen shell DNA library enriched in CA repeats, and used to compare allelic variation between wild and hatchery pen shell populations in Korea. A total of 438 alleles were detected at the 20 MS loci in the two populations. All loci were easily amplified and demonstrated allelic variability, with the number of alleles ranging from 5 to 35 in the wild population and from 5 to 22 in the farmed population. The average observed and expected heterozygosities were 0.69 and 0.82, respectively, in the hatchery samples and 0.69 and 0.83, respectively, in the wild samples. Statistical analysis of fixation index (FST) and analysis of molecular variance (AMOVA) showed minor, but significant, genetic differences between the wild and hatchery populations (FST = 0.0106, CI95% = 0.003–0.017). These microsatellite loci may be valuable for future aquaculture and population genetic studies for developing conservation and management plans. Further studies with additional pen shell samples are needed to conclusively determine the genetic diversity between the wild and hatchery populations

    Ultraviolet radiation shapes seaweed communities

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    The Homeobox Protein CEH-23 Mediates Prolonged Longevity in Response to Impaired Mitochondrial Electron Transport Chain in C. elegans

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    Recent findings indicate that perturbations of the mitochondrial electron transport chain (METC) can cause extended longevity in evolutionarily diverse organisms. To uncover the molecular basis of how altered METC increases lifespan in C. elegans, we performed an RNAi screen and revealed that three predicted transcription factors are specifically required for the extended longevity of mitochondrial mutants. In particular, we demonstrated that the nuclear homeobox protein CEH-23 uniquely mediates the longevity but not the slow development, reduced brood size, or resistance to oxidative stress associated with mitochondrial mutations. Furthermore, we showed that ceh-23 expression levels are responsive to altered METC, and enforced overexpression of ceh-23 is sufficient to extend lifespan in wild-type background. Our data point to mitochondria-to-nucleus communications to be key for longevity determination and highlight CEH-23 as a novel longevity factor capable of responding to mitochondrial perturbations. These findings provide a new paradigm for how mitochondria impact aging and age-dependent diseases

    Bioinformatics tools for cancer metabolomics

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    It is well known that significant metabolic change take place as cells are transformed from normal to malignant. This review focuses on the use of different bioinformatics tools in cancer metabolomics studies. The article begins by describing different metabolomics technologies and data generation techniques. Overview of the data pre-processing techniques is provided and multivariate data analysis techniques are discussed and illustrated with case studies, including principal component analysis, clustering techniques, self-organizing maps, partial least squares, and discriminant function analysis. Also included is a discussion of available software packages
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