851 research outputs found

    The Development of Security Community in Croatia: Leading the Pack

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    Of the former Yugoslav republics, Croatia is in an enviable position. After years of difficult reforms and restructuring, its efforts are paying off. The country recently assumed a seat on the UN Security Council, it joined NATO and there is an expectation of forthcoming EU membership. Through these steps, the country has begun to integrate into the well-established Euro-Atlantic community. This article explores the depths of this integration through the theoretical lens of security community. We draw conclusions regarding security community in Croatia to provide lessons for NATO’s New Strategic Concept. Ultimately, we argue that NATO must remember that there remain security concerns in the European neighborhood, even in apparent successes like Croatia

    Religion and health : the application of a cognitive-behavioural framework

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    The empirical examination of the relationship between religion and health has often lacked theoretical direction. The aim of the study was to examine the relationship between dimensions of religiosity and health within the context of James and Wells’ cognitive-behavioural framework of religion. A community sample of 177 UK adults completed measures of religious orientation, religious coping, and prayer activity alongside the SF-36 Health Survey. Consistent with the cognitive-behavioural framework of religion, intrinsic religiosity and meditative prayer scores accounted for unique variance in both physical and mental health scores over a number of religious measures. These findings suggest the potential usefulness and importance of a cognitive-behavioural framework to understand the relationship between religion (as measured by meditative prayer and intrinsic religiosity) and health

    Detecting very-high-frequency relic gravitational waves by electromagnetic wave polarizations in a waveguide

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    The polarization vector (PV) of an electromagnetic wave (EW) will experience a rotation in a region of spacetime perturbed by gravitational waves (GWs). Based on this idea, Cruise's group has built an annular waveguide to detect GWs. We give detailed calculations of the rotations of the polarization vector of an EW caused by incident GWs from various directions and in various polarization states, and then analyze the accumulative effects on the polarization vector when the EW passes n cycles along the annular waveguide. We reexamine the feasibility and limitation of this method to detect GWs of high frequency around 100 MHz, in particular, the relic gravitational waves (RGWs). By comparing the spectrum of RGWs in the accelerating universe with the detector sensitivity of the current waveguide, it is found that the amplitude of the RGWs is too low to be detected by the waveguide detectors currently running. Possible ways of improvements on detection are discussed also.Comment: 18pages, 10 figures, accepted by ChJA

    Adventist Youth and Drugs

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    This article lays out a research of Adventist youth and drugs. It was conducted in the United States and Canada. A questionnaire was used for data collection.https://digitalcommons.andrews.edu/hrsa/1113/thumbnail.jp

    Detection and Estimation Theory

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    Contains research objectives and reports on two research projects.Joint Services Electronics Programs (U. S. Army, U.S. Navy, and U.S. Air Force) under Contract DA 28-043-AMC-02536(E)U. S. Navy Purchasing Office Contract N00140-67-C-021

    A systematic review of the antecedents and prevalence of suicide, self-harm and suicide ideation in Australian Aboriginal and Torres Strait Islander youth

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    Suicide and self-harm represent serious global health problems and appear to be especially elevated amongst indigenous minority groups, and particularly amongst young people (aged 24 years or younger). This systematic review investigates for the first time the antecedents and prevalence of suicide, self-harm and suicide ideation among Australian Aboriginal and Torres Strait Islander youth. Web of Science, PubMed, PsychINFO, CINAHL databases and grey literature were searched from earliest records to April 2019 for eligible articles. Twenty-two empirical articles met the inclusion criteria. The data confirmed that indigenous youth in Australia have elevated rates of suicide, self-harm and suicidal ideation relative to the nonindigenous population. Risk factors included being incarcerated, substance use and greater social and emotional distress. Notably, though, information on predictors of suicide and self-harm remains scarce. The findings support and justify the increasing implementation of public health programs specifically aimed at tackling this crisis. Based on the review findings, we argued that Aboriginal communities are best positioned to identify and understand the antecedents of youth self-harm, suicide ideation and suicide, and to take the lead in the development of more effective mental health preventive strategies and public policies within their communities

    Control of Energy Storage with Market Impact: Lagrangian Approach and Horizons

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    Construction and testing of the optical bench for LISA pathfinder

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    eLISA is a space mission designed to measure gravitational radiation over a frequency range of 0.1–100 mHz (European Space Agency LISA Assessment Study Report 2011). It uses laser interferometry to measure changes of order 10pm/Hz10\,{\rm pm /\sqrt{Hz}} in the separation of inertial test masses housed in spacecraft separated by 1 million km. LISA Pathfinder (LPF) is a technology demonstrator mission that will test the key eLISA technologies of inertial test masses monitored by laser interferometry in a drag-free spacecraft. The optical bench that provides the interferometry for LPF must meet a number of stringent requirements: the optical path must be stable at the few pm/Hz{\rm pm /\sqrt{Hz}} level; it must direct the optical beams onto the inertial masses with an accuracy of better than ±25 μm, and it must be robust enough not only to survive launch vibrations but to achieve full performance after launch. In this paper we describe the construction and testing of the flight optical bench for LISA Pathfinder that meets all the design requirements

    Revisit relic gravitational waves based on the latest CMB observations

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    According to the CMB observations, Mielczarek (\cite{Mielczarek}) evaluated the reheating temperature, which could help to determine the history of the Universe. In this paper, we recalculate the reheating temperature using the new data from WMAP 7 observations. Based on that, we list the approximate solutions of relic gravitational waves (RGWs) for various frequency bands. With the combination of the quantum normalization of RGWs when they are produced and the CMB observations, we obtain the relation between the tensor-to-scalar ratio rr and the inflation index β\beta for a given scalar spectral index nsn_s. As a comparison, the diagram rβr-\beta in the slow-roll inflation model is also given. Thus, the observational limits of rr from CMB lead to the constraints on the value of β\beta. Then, we illustrate the energy density spectrum of RGWs with the quantum normalization for different values of rr and the corresponding β\beta. For comparison, the energy density spectra of RGWs with parameters based on slow-roll inflation are also discussed. We find that the values of nsn_s affect the spectra of RGWs sensitively in the very high frequencies. Based on the current and planed gravitational wave detectors, we discuss the detectabilities of RGWs.Comment: 16 pages, 6 figures, accepted for publication in Class. Quantum Gra
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