110 research outputs found

    Optimal block-type-decodable encoders for constrained systems

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    Exploring how bicultural and assimilated children of Mexican origin influence their Latina mothers' diet: Perspectives from mothers and children

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    Social and cultural factors influence dietary intake and behaviors. Research shows that mothers consume a lower quality diet when they have a child who is assimilated to the US culture versus bicultural. The purpose of this study was to qualitatively compare how bicultural and assimilated children influenced their culturally traditional mothers' dietary intake/behaviors. Separate one-on-one interviews with 21 Mexican-origin mothers and their bicultural (n = 11) or assimilated (n = 10) children (10–13 years old) were conducted. We used framework analysis to reduce qualitative data to themes and subthemes. Data were analyzed separately and then compared between mothers of bicultural versus assimilated children. Mothers of bicultural children reported typically having an easier time consuming a better quality diet than mothers of assimilated children. For example, although all children requested non-traditional foods, bicultural children were typically more accepting of their mothers preparing traditional healthier foods than assimilated children. Furthermore, mothers believed their children's food preferences both influenced and were influenced by their own feeding styles. Mothers of bicultural children described using more “Mexican” (i.e., authoritative) feeding styles that they believed shaped their children's palate into preferring traditional foods. Mothers of assimilated children explained that their children's preference for non-traditional foods resulted in their use of more permissive or indulgent feeding styles. Longitudinal research is needed to test and confirm the directionality between feeding styles and child's food preferences. Interventions may need to consider the reciprocal influences between mothers' feeding styles, children's food preferences, and how children influence their mothers' dietary intake/behavior

    A systematic review of physical activity promotion strategies

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    This article was first published in:British Journal of Sports Medicine:1996:30:84-89We have reviewed randomised controlled trials of physical activity promotion to provide recent and reliable information on the effectiveness of physical activity promotion. Computerised databases and references of references were searched. Experts were contacted and asked for information about existing work. Studies assessed were randomised controlled trials of healthy, free living, adult subjects, where exercise behaviour was the dependent variable. Eleven trials were identified. No United Kingdom based studies were found. Interventions that encourage walking and do not require attendance at a facility are most likely to lead to sustainable increases in overall physical activity. Brisk walking has the greatest potential for increasing overall activity levels of a sedentary population and meeting current public health recommendations. The small number of trials limits the strength of any conclusions and highlights the need for more research

    Commensal viruses of mosquitoes: Host restriction, transmission, and interaction with arboviral pathogens

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    Recent advances in virus detection strategies and deep sequencing technologies have enabled the identification of a multitude of new viruses that persistently infect mosquitoes but do not infect vertebrates. These are usually referred to as insect-specific viruses (ISVs). These novel viruses have generated considerable interest in their modes of transmission, persistence in mosquito populations, the mechanisms that restrict their host range to mosquitoes, and their interactions with pathogens transmissible by the same mosquito. In this article, we discuss studies in our laboratory and others that demonstrate that many ISVs are efficiently transmitted directly from the female mosquito to their progeny via infected eggs, and, moreover, that persistent infection of mosquito cell cultures or whole mosquitoes with ISVs can restrict subsequent infection, replication, and transmission of some mosquito-borne viral pathogens. This suggests that some ISVs may act as natural regulators of arboviral transmission. We also discuss viral and host factors that may be responsible for their host restriction

    A meta-analysis of gene expression signatures of blood pressure and hypertension

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    Genome-wide association studies (GWAS) have uncovered numerous genetic variants (SNPs) that are associated with blood pressure (BP). Genetic variants may lead to BP changes by acting on intermediate molecular phenotypes such as coded protein sequence or gene expression, which in turn affect BP variability. Therefore, characterizing genes whose expression is associated with BP may reveal cellular processes involved in BP regulation and uncover how transcripts mediate genetic and environmental effects on BP variability. A meta-analysis of results from six studies of global gene expression profiles of BP and hypertension in whole blood was performed in 7017 individuals who were not receiving antihypertensive drug treatment. We identified 34 genes that were differentially expressed in relation to BP (Bonferroni-corrected p<0.05). Among these genes, FOS and PTGS2 have been previously reported to be involved in BP-related processes; the others are novel. The top BP signature genes in aggregate explain 5%-9% of inter-individual variance in BP. Of note, rs3184504 in SH2B3, which was also reported in GWAS to be associated with BP, was found to be a trans regulator of the expression of 6 of the transcripts we found to be associated with BP (FOS, MYADM, PP1R15A, TAGAP, S100A10, and FGBP2). Gene set enrichment analysis suggested that the BP-related global gene expression changes include genes involved in inflammatory response and apoptosis pathways. Our study provides new insights into molecular mechanisms underlying BP regulation, and suggests novel transcriptomic markers for the treatment and prevention of hypertension

    'It is fun, fitness and football really': a process evaluation of a football-based health intervention for men

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    Concerns about gender inequalities in longevity, particularly premature male mortality, have prompted a range of innovative approaches to health promotion work dating back to the 1980s. In developing such work, sport, and football in particular, has emerged as a gendered cultural field that has utility for engaging men in community health initiatives. Evaluations of such work have shown that health initiatives using football settings, football interventions or even club branding can have positive impact on various health measures in the short and longer term. However, little work to date has looked at the underlying mechanisms that generate success in such projects. This paper presents secondary analysis of data collected during the evaluation of the Premier League Health (PLH) programme specifically focusing on these underlying mechanisms and how/where gender (masculinities) appears in these processes. We draw on interview data with 16 staff who had been involved in the delivery of the PLH initiative and 58 men who took part. Thematic analysis highlighted two overarching (and underpinning) themes: 'Trust', what processes it was key to and how it was developed and sustained; and 'Change', including what it was facilitated by and what impact it had. The paper adds to our understanding of how active listening, flexibility and sustained engagement are key to community-based sports projects' success. Furthermore, it demonstrates how the physicality and sociability of involvement, rather than any direct focus on 'health', are important in acting as a springboard for facilitating reflection and aiding lifestyle changes for men. © 2013 Taylor & Francis

    Environmental Design for Patient Families in Intensive Care Units

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