19,619 research outputs found

    Continuous turning slip ring assembly Patent

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    Development of slip ring assembly with inner and outer peripheral surfaces used as electrical contacts for brushe

    Hawks\u27 Herald -- February 5, 2015

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    Strategy for Tomorro

    Some comments on embedding inflation in the AdS/CFT correspondence

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    The anti-de Sitter space/conformal field theory correspondence (AdS/CFT) can potentially provide a complete formulation of string theory on a landscape of stable and metastable vacua that naturally give rise to eternal inflation. As a model for this process, we consider bubble solutions with de Sitter interiors, obtained by patching together dS and Schwarzschild-AdS solutions along a bubble wall. For an interesting subclass of these solutions the bubble wall reaches spacelike infinity in the black hole interior. Including the effects of perturbations leads to a null singularity emanating from this point. Such solutions are interpreted as states in a single CFT, and are shown to be compatible with holographic entropy bounds. The construction suggests de Sitter entropy be interpreted as the total number of degrees of freedom in effective field theory, with a novel adaptive stepsize cutoff.Comment: 15 pages, 4 figures, revtex

    What causes the word gap? Financial concerns may systematically suppress child-directed speech

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    Parents with fewer educational and economic resources (low socioeconomic-status, SES) tend to speak less to their children, with consequences for children’s later life outcomes. Despite this well-established and highly popularized link, surprisingly little research addresses why the SES “word gap” exists. Moreover, existing research focuses on individual-level explanations with little attention to structural constraints with which parents must contend. In two pre-registered studies, we test whether experiencing financial scarcity itself can suppress caregivers’ speech to their children. Study 1 suggests that caregivers who are prompted to reflect on scarcity—particularly those who reflect on financial scarcity—speak to their 3-year-olds less than a control group in a subsequent play session. Study 2 finds that caregivers speak less to their children at the end of the month—when they are more likely to be experiencing financial hardship—than the rest of the month. Thus, above and beyond the individual characteristics of parents, structural constraints may affect how much parents speak to their children

    Analysis of ISER 2008-2009 Survey Data

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    In September 2008, the superintendent of the Anchorage School District and the mayor of Anchorage sent a letter to the governor of Alaska, reporting what they thought might be an influx of students into Anchorage from rural communities. Enrollment in the school district was higher than expected, and it coincided with the largest-ever Alaska Permanent Fund dividend and with a one-time payment of $1,200 the state made per person, to help offset high energy costs. Researchers at the Institute of Social and Economic Research (ISER) at UAA have a longstanding interest in migration patterns in Alaska and the Arctic, and they saw the increased enrollment in Anchorage schools as a potential opportunity to better understand: • If rural Alaskans are moving to Anchorage • Where they are coming from • Why they are moving So with the cooperation of the Anchorage School District, ISER conducted a survey of the parents or guardians of students who had enrolled in Anchorage in the 2007-2008 or 2008-2009 school years and who had transferred in from other Alaska school districts. Besides finding out where students were coming from—and why—another purpose of the study was to provide the Anchorage School District and the Municipality of Anchorage with information about what they could do to help students and families who are new to the city. To our knowledge, this may be the first survey ever conducted to find out why people move to Anchorage from other areas of Alaska.University of Alaska Foundation. BP-Conoco Phillips Charter AgreementExecutive Summary / Introduction / Methods / Where are Alaskan's Moving From? / Organization of Survey Findings / Migration Patterns / Who is Moving? / Challenges and Transitions / Conclusions and Recommendations / References / Appendix A. Survey For

    Alaska Coastal Community Youth and the Future

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    The Alaska Sea Grant College Program. Project No. R/72-02.Executive Summary / Introduction / Background to the Research / Methods / Findings / Discussion and Policy Recommendations / Products from the Research / References Cited / Appendix A. Focus Group Protocol (High School) / Appendix B. Focus Group Protocol (12-20 year olds) / Appendix C. Focus Group Questionnaire / Appendix D. Occupational Rating Worksheet / Appendix E. Consent/Assent For

    All Transparent Conservation Scheme for the Menokin Ruins

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    The challenge of preserving the 18th century ruin at Menokin, Virginia USA, hasinspired a radical scheme to authentically conserve the surviving architecture. Theruined building is in a state of decay and Dewhurst Macfarlane & Partners havedesigned a glass structure to re-establish the protection of the building envelope.The plans presented are not ready for construction. Details for splicing togethertimber and glass beams are discussed. The conservators plans to recreate themissing elements in glass has led to the development of an all transparent structuralsystem. The paper discusses how the properties of acrylic and glass can becombined to create composite elements that are sufficiently versatile to meet thedemands of reconstructing 18th century building elements

    The Blind Who See

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    Non-fiction by Robert E. Low

    Ah! Women!

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    Non-fiction by Robert E. Low

    Thrombotic variables and risk of idiopathic venous thromboembolism in women aged 45-64 years - Relationships to hormone replacement therapy

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    Hormone replacement therapy (HRT) has been shown to increase the relative risk of idiopathic venous thromboembolism (VTE) about threefold in several observational studies and one randomised controlled trial. Whether or not this relative risk is higher in women with underlying thrombophilia phenotypes, such as activated protein C (APC) resistance, is unknown. We therefore restudied the participants in a case-control study of the relationship between the use of HRT and the occurrence of idiopathic VTE in women aged 45-64 years. After protocol exclusions, 66 of the cases in the original study and 163 of the controls were studied. Twenty haematological variables relevant to risk of VTE were analysed, including thrombotic states defined from the literature. The relative risk of VTE showed significant associations with APC resistance (OR 4.06; 95% CI 1.62, 10.21); low antithrombin (3.33; 1.15, 9.65) or protein C (2.93; 1.06, 8.14); and high coagulation factor IX (2.34: 1.26, 1.35), or fibrin D-dimer (3.84; 1.99, 7.32). HRT use increased the risk of VTE in women without any of these thrombotic static; (OR 4.09; 95% CI 1.26, 13.30). A similar effect of HRT use on the relative risk of VTE was also found in women with prothrombotic states. Thus for example, the combination of HRT use and APC resistance increased the risk of VTE about 13-fold compared with women of similar age without either APC resistance or HRT use (OR 13.27; 95%, CI 4.30, 40.97). We conclude that the combination of HRT use and thrombophilias (especially if multiple) increases the relative risk of VTE substantially; hence women known to have thrombophilias (especially if multiple) should be counselled about this increased risk prior to prescription of HRT. However. HRT increases the risk of VTE about fourfold even in women without any thrombotic abnormalities: possible causes are discussed
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