885,115 research outputs found

    Barriers and Bridges: An Action Plan for Overcoming Obstacles and Unlocking Opportunities for African American Men in Pittsburgh

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    Among the region's residents, Pittsburgh's African American men have historically and disproportionately faced unprecedented barriers to economic opportunities. This study, supported by The Heinz Endowments, focuses on structural barriers that contribute to persistent racial disparities in the Pittsburgh region. Structural barriers are obstacles that collectively affect a group disproportionately and perpetuate or maintain stark disparities in outcomes. Structural barriers can be policies, practices, and other norms that favor an advantaged group while systematically disadvantaging a marginalized group. A community touched by racebased structural barriers can be identified by the racial and economic stratification of its residents; Pittsburgh, like many large cities in the United States, fits that description

    Help seeking in the New Zealand Defence Force using the Theory of Planned Behaviour : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Science in Psychology at Massey University, Albany, New Zealand

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    Mental health is of utmost importance in military settings due to the demanding and often dangerous nature of the work involved. However, military personnel are disproportionately deterred from seeking mental health help when the need arises. Perceived stigma and structural barriers to help seeking have been widely researched in military settings, however, results are often mixed. The current study examined the traditional stigma and structural barriers help seeking model alongside an alternative model of the Theory of Planned Behaviour to explain help seeking behaviour. A cross-sectional study design surveying 2633 enlisted New Zealand Defence Force Personnel was carried out. Within the two models, attitudes, subjective norms, perceived behavioural control, stigma, and structural barriers were assessed as predictors of intentions to seek professional help for mental health problems. The Theory of Planned Behaviour model accounted for 26% of total variance in help seeking intentions, while the traditional model only accounted for 7%. Additionally, the Theory of Planned Behaviour model showed potential for its capacity to include stigma and structural barriers as antecedents to its core predictors, with stigma being partially mediated by attitudes, and structural barriers being fully mediated by perceived behavioural control. Additional group level measures were also considered in relation to help seeking intentions which highlighted at risk groups. A common theme arose across these groups of less chances for both formal and informal learning opportunities about mental health help seeking in the defence force. Using these group level differences, recommendations for how the Theory of Planned Behaviour can be utilized to increase mental health learning experiences for the New Zealand Defence Force personnel are made. Specifically, the potential efficacy of incorporating the sharing of highly ranked personnel’s positive experiences of help seeking early on in new recruits training

    Dark costs, missing data: shedding some light on services trade

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    A structural gravity model is used to estimate barriers to services trade across many sectors, countries and time. Since the disaggregated output data needed to flexibly infer border barriers are often missing for services, we derive a novel methodology for projecting output data. The empirical implementation sheds light on the role of institutions, geography, size and digital infrastructure as determinants of border barriers. We find that border barriers have generally fallen over time but there are differences across sectors and countries. Notably, border effects for the smallest economies have remained stable, giving rise to a divergent pattern across countries

    The Incidence of Geography on Canada's Services Trade

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    We estimate geographic barriers to export trade in nine service categories for Canada's provinces from 1997 to 2007 using the structural gravity model. Constructed Home, Domestic and Foreign Bias indexes (the last two new) capture the direct plus indirect effect of services trade costs on intra-provincial, inter-provincial and international trade relative to their frictionless benchmarks. Barriers to services international trade are huge relative to inter-provincial trade and large relative to goods international trade. A novel test confirms the fit of structural gravity with services trade data.

    NiTi shape-memory transformations: minimum-energy pathways between austenite, martensites, and kinetically-limited intermediate states

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    NiTi is the most used shape-memory alloy, nonetheless, a lack of understanding remains regarding the associated structures and transitions, including their barriers. Using a generalized solid-state nudge elastic band (GSSNEB) method implemented via density-functional theory, we detail the structural transformations in NiTi relevant to shape memory: those between body-centered orthorhombic (BCO) groundstate and a newly identified stable austenite ("glassy" B2-like) structure, including energy barriers (hysteresis) and intermediate structures (observed as a kinetically limited R-phase), and between martensite variants (BCO orientations). All results are in good agreement with available experiment. We contrast the austenite results to those from the often-assumed, but unstable B2. These high- and low-temperature structures and structural transformations provide much needed atomic-scale detail for transitions responsible for NiTi shape-memory effects.Comment: 4 pages, 4 figure

    Reducing structural dominance and entry barriers in Russian industry

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    Many industrial firms in Russia have undergone changes in ownership, but relatively few have been competitively restructured. Using survey and other data, the author suggests that much of Russian industry is immune from robust competition because of heavy vertical integration, geographic segmentation, and the concentration of buyers and sellers, in selected markets. Moreover, regulatory constraints protect incumbent firms from competition with new entrants, both domestic and foreign. The author sketches a reform agenda for Russia's post-privatization program, which emphasizes the restructuring of anti-competitive structures and the reduction of barriers to entry. The author's proposed reform agenda calls broadly for strengthening Russia's nascent rules-based framework for competition policy to reduce discretion, increase transparency, and improve accountability.Markets and Market Access,Environmental Economics&Policies,Economic Theory&Research,Banks&Banking Reform,Small and Medium Size Enterprises,Environmental Economics&Policies,Economic Theory&Research,Private Participation in Infrastructure,Small Scale Enterprise,Microfinance

    Sectoral Structure and Entry Regulations

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    The sectoral allocation of labor differs considerably across developed economies, even in the presence of similar patterns of structural change. A general equilibrium model that captures the stylized facts of structural change is presented. In this framework, economy-wide barriers to entry hinder the development of dynamic sectors such as service industries. Moreover, higher service prices and rents in regulated economies reduce labor supply, providing a rationale for the negative association between product market regulations and the employment rate previously found in the literature. Empirical evidence presented shows that regulatory entry barriers help explaining differences in the sectoral allocation of labor across OECD countries.unbalanced growth, entry regulations

    More Color More Pride: Addressing Structural Barriers to Interracial LGBTQ Loving

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    Through an examination of State-supported racial structures, this Essay illustrates that even after the legalization of interracial and same-sex marriages, the State’s control over housing, education, and employment prospects impedes the formation of interracial LGBTQ relationships. This Essay suggests that reducing residential segregation can be a first step in dismantling structural barriers to interracial LGBTQ loving, as truly integrated housing would increase cross-racial contact, lead to better educational and employment outcomes, and give LGBTQ people of color a chance to improve their social capital. This, together with altering how issues of race are framed within the LGBTQ community, will help dispel negative racial stereotypes and facilitate the formation of interracial LGBTQ relationships

    The Long and Viscous Road: Uncovering Nuclear Diffusion Barriers in Closed Mitosis

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    During Saccharomyces cerevisiae closed mitosis, parental identity is sustained by the asymmetric segregation of ageing factors. Such asymmetry has been hypothesized to occur via diffusion barriers, constraining protein lateral exchange in cellular membranes. Diffusion barriers have been extensively studied in the plasma membrane, but their identity and organization within the nucleus remain unknown. Here, we propose how sphingolipid domains, protein rings, and morphological changes of the nucleus may coordinate to restrict protein exchange between nuclear lobes. Our spatial stochastic model is based on several lines of experimental evidence and predicts that, while a sphingolipid domain and a protein ring could constitute the barrier during early anaphase; a sphingolipid domain spanning the bridge between lobes during late anaphase would be entirely sufficient. Additionally, we explore the structural organization of plausible diffusion barriers. Our work shows how nuclear diffusion barriers in closed mitosis may be emergent properties of simple nanoscale biophysical interactions.Comment: 21 pages, 6 figures and supplementary material (including 8 additional figures and a Table
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