11,342 research outputs found

    The social production of psychocentric knowledge in suicidology

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    Suicidology, the scientific study of suicide and suicide prevention, constructs suicide as primarily a question of individual mental health. Despite recent engagement with suicide from a broader public health perspective, and efforts of critical suicide studies scholars and activists to widen the disciplinary and theoretical base of suicidology, the narrow focus on individual pathology and deficit in conceptualising suicide persists. In this article, I consider the ways in which this ‘psychocentric’ knowledge of suicide is produced and organised, offer reasons why this to be problematic, and outline other available forms of knowledge production. This knowledge production is psychopolitical rather than psychocentric that emphasises much more the contexts (political, economic, social, cultural and historical) within which suicide occurs. Psychopolitical analysis aims to better understand the complex social and political contexts of such deaths, and, ultimately, seeks to open up collective and political possibilities for action which are denied when suicide is conceptualised solely as an issue of individual mental health

    Suicide: the hidden cost of the financial crisis

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    Are we limited in the ways we can discuss suicide? It is not just a mental health problem – it’s a social, ethical and political issue too

    ‘Critical suicidology': toward an inclusive, inventive and collaborative (post) suicidology

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    In the spirit of Jennifer White’s (2015) comments, I am going to take a mildly optimistic stance. Though I too have experienced mainstream suicidology as excluding (and I have often felt quite demoralized as a consequence so I have sympathy with Tom Widger and Jennifer White with regards to this) I think the limited (and limiting) underlying assumptions the field operates within and maintains are beginning to be effectively critiqued. The paper by Scott Fitzpatrick, Claire Hooker, and Ian Kerridge (2014), Tom Widger’s response (2015) and Jennifer White’s subsequent comments bear witness to that. This ‘critical suiciology’, I believe, can facilitate the development of a ‘post-suicidology’ that has the potential to be far more inclusive, creative, collaborative and critically engaged that the current field of study, and would draw on a broader range of interests and people

    Solid propellant motor

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    A case bonded end burning solid propellant rocket motor is described. A propellant with sufficiently low modulus to avoid chamber buckling on cooling from cure and sufficiently high elongation to sustain the stresses induced without cracking is used. The propellant is zone cured within the motor case at high pressures equal to or approaching the pressure at which the motor will operate during combustion. A solid propellant motor with a burning time long enough that its spacecraft would be limited to a maximum acceleration of less than 1 g is provided by one version of the case bonded end burning solid propellant motor of the invention

    ENDOGENOUS PROTECTION IN THE MEXICAN CORN AND SORGHUM MARKET

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    Trade relations between the United States (U.S) and Mexico are increasingly interrelated and important ever since the ratification of NAFTA in 1994. With the advent of NAFTA, tariffs on many agricultural products were lowered or are in the process of being lowered. Mexico implements a tariff-rate quota for corn which is to be phased out by 2009. This quota is divided among the various Mexican corn importers with "cupos", which are import permits. Import permits are administrative trade barriers that can be defined as any obstacle that appears and disappears as market conditions change. It is widely recognized in the literature that administrative trade barriers create numerous obstacles to the international exchange of agricultural products. In this paper a conceptual structural model of international marketing margins and trade uncertainty is specified that links the private market to political factors influencing administrative trade barriers. In doing so, this systematically links trade models specified by Gallagher (1998) and others, which characterize private markets under uncertainty but ignore direct influences from political markets, to work by Trefler (1993) and others, which focus on endogenous trade protection. The general objective of this study is to increase the understanding of the impact of institutional aspects on agricultural trade. The specific objectives are to quantify the impact of import permits for white and yellow corn on international marketing margins between the U.S. and Mexico for white corn, yellow corn, and sorghum, as well as approximate the impact of changing political market variables on total welfare. Conceptually understanding the underlying processes and estimating empirical relationships for these objectives leads to important insights into the effect of the Mexican government's policy of allocating corn import permits have on the price and quantity of corn and sorghum. A complete structural model of white corn, yellow corn, and sorghum is specified, wherein import demand equations are generalized to incorporate simultaneous variables of trade protection (Trefler 1993) and then estimated with a simultaneous tobit estimator. The results provide interesting insights into the way that import permits work in Mexico. Interestingly, generalizing the import demand equations to account for trade protection dramatically alters international marketing margins for white corn and sorghum in a manner consistent with findings in Trefler. However, yellow corn appears unaffected. Further, political and industry interests driving trade protection in Mexico are found to influence import demand. For example, political pressure from corn and sorghum producers has a negative affect on the import demand for corn and sorghum. These results are consistent with other conjectures and findings in public choice analysis, which indicate that increases in import penetration will increase lobbying efforts from domestic firms to decrease imports. These results indicate that as grain producers lobby for a decrease in import permit allocations the import demand for these grains decreases, meaning that they have succeeded in their efforts to reduce import competition. In all, these insights provide the means to better understand how subtle trade barriers affect the trade flow between countries.Crop Production/Industries,

    Latitudinal dependence of low cloud amount on cosmic ray induced ionization

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    A significant correlation between the annual cosmic ray flux and the amount of low clouds has recently been found for the past 20 years. However, of the physical explanations suggested, none has been quantitatively verified in the atmosphere by a combination of modelling and experiment. Here we study the relation between the global distributions of the observed low cloud amount and the calculated tropospheric ionization induced by cosmic rays. We find that the time evolution of the low cloud amount can be decomposed into a long-term trend and inter-annual variations, the latter depicting a clear 11-year cycle. We also find that the relative inter-annual variability in low cloud amount increases polewards and exhibits a highly significant one-to-one relation with inter-annual variations in the ionization over the latitude range 20--55^\circS and 10--70^\circN. This latitudinal dependence gives strong support for the hypothesis that the cosmic ray induced ionization modulates cloud properties.Comment: GRL, in pres
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