43,860 research outputs found

    The Intermediate Line Region and the Baldwin Effect

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    Statistical investigations of samples of quasars have established that clusters of properties are correlated. The strongest trends among the ultraviolet emission-line properties are characterized by the object-to-object variation of emission from low-velocity gas, the so-called ``intermediate-line region'' or ILR. The strongest trends among the optical emission-line properties are characterized by the object-to-object variation of the line intensity ratio of [O III] 5007 to optical Fe II. Additionally, the strength of ILR emission correlates with [O III]/Fe II, as well as with radio and X-ray properties. The fundamental physical parameter driving these related correlations is not yet identified. Because the variation in the ILR dominates the variation in the equivalent widths of lines showing the Baldwin effect, it is important to understand whether the physical parameter underlying this variation also drives the Baldwin effect or is a primary source of scatter in the Baldwin effect.Comment: 11 pages, to appear in the proceedings of the meeting on "Quasars as Standard Candles for Cosmology" held on May 18-22, 1998, at La Serena, Chile. To be published by ASP, editor G. Ferlan

    UTILIZATION AND INTERPRETATION OF HYDROLOGIC DATA: WITH SELECTED EXAMPLES FROM NEW HAMPSHIRE

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    Religion and mental health among Hindu young people in England

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    The aim of this study was to explore the relationship between mental health and attitude toward their religious tradition among a sample of 330 young people attending the Hindu Youth Festival in London. The participants completed the Santosh-Francis Scale of Attitude toward Hinduism together with the abbreviated form of the Revised Eysenck Personality Questionnaire which provides measures of neuroticism and psychoticism. The data indicated that a more positive attitude toward Hinduism was associated with lower psychoticism scores but unrelated to neuroticism scores. There is no evidence, therefore, to associate higher levels of religiosity with poorer mental health among young people within the Hindu community

    Christianity, paranormal belief and personality: a study among 13- to 16-year-old pupils in England and Wales

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    Studies concerning the changing landscapes of religiosity and spirituality in the lives of young people in England and Wales draw attention to decline in traditional religiosity and to growth in alternative spiritualities. The present study examined whether such alternative spiritualities occupy the same personality space as traditional religiosity. A sample of 2,950 13- to 16-year-old pupils attending 11 secondary schools in England and Wales completed the Francis Scale of Attitude toward Christianity and an index of paranormal belief, alongside the abbreviated-form Junior Eysenck Personality Questionnaire Revised. The data demonstrated that these two forms of belief were related in different ways to Eysenck's dimensional model of personality space. While attitude toward Christianity occupied the space defined by low psychoticism scores (tendermindedness) and high lie scale scores (social conformity), paranormal belief was related to high psychoticism scores (toughmindedness) and was independent of lie scale scores. These findings support the view that alternative spiritualities may be associated with different personalities

    The spiritual revolution and suicidal ideation: an empirical enquiry among 13- to 15-year-old adolescents in England and Wales

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    The association between conventional religiosity and suicide inhibition has been well explored and documented since the pioneering work of Durkheim. Commentators like Heelas and Woodhead point to ways in which conventional religiosity is giving way in England and Wales to a range of alternative spiritualities, including renewed interest in paranormal phenomena. Taking a sample of 3095 13- to 15-year-old adolescents, the present study examines the association between suicidal ideation and both conventional religiosity and paranormal beliefs, after controlling for individual differences in sex, age and personality (extraversion, neuroticism and psychoticism). The data demonstrate that, while conventional religiosity is slightly associated with lower levels of suicidal ideation, paranormal beliefs are strongly associated with higher levels of suicidal ideation

    Risk Belief, Producer Demand, and Valuation of Improved Irrigations: Results from Field Experiments in Mt. Kilimanjaro

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    This paper systematically estimates the potential benefit of introducing improved irrigation schemes in Mt. Kilimanjaro to help rain dependent farmers cope with the risks of climate change. The study uses Contingent Valuation Method (CVM) to elicit farmers’ Willingness to Pay (WTP) for eliminating the risks of crop loss by accessing improved irrigation schemes. Data for the analysis were gathered using a double bounded survey from over 200 randomly-sampled farmers in 15 villages. The study makes a contribution to the applied welfare literature and should also be useful for policymakers in Africa. The policy contribution consists of valuation of improved irrigation in the presence of climate change risks. The applied welfare contribution consists of empirical evidence about the impact of farmer’s risk aversion on welfare valuation. Pratt and Zeckhauser (1996) argue on conceptual grounds that in the absence of complete contingent claims market, individual WTP per unit of risk reduction will depend significantly on the level of risk and the magnitude of reduction that is offered. The present study captures individual farmer’s risk exposure by constructing an index for farmers’ expected rainfall. Since mean WTP is nonlinear in its parameters, mean WTP is computed based on the Krinsky and Robb (1986) method, which simulates the confidence interval and the achieved significance levels (ASL) for testing the null hypothesis that WTP≤0. The results show that farmers with lower expectations about future rainfall are willing to pay more for accessing the improved irrigation scheme. In addition, Mt. Kilimanjaro farmers are willing to pay up to 10% of their income to have access to improved irrigation canals. Assuming a 5% discount rate, the study found that farmers will reimburse the cost of building the irrigation scheme after 7 to 9 years.Willingness to Pay, Climate Change, Irrigation, Risk Belief, Agricultural and Food Policy, Environmental Economics and Policy, Food Security and Poverty, International Development, Q12, Q18, Q25, Q51, Q56,
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