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111.
Ben Lampert 《Development policy review : the journal of the Overseas Development Institute》2012,30(2):149-167
Diaspora organisations are increasingly being lauded as important actors in the development of their communities and countries of origin. Focusing on London‐based Nigerian organisations and their interventions in Nigeria, this article assesses the particular claims that diaspora organisations reach, benefit and ‘empower’ women and ‘the poor’ at ‘home’. It argues that, while many London‐based Nigerian organisations do connect with and support these groups, they often do so in ways that reinforce rather than transform established gender relations and socio‐economic inequalities. If international agencies are to support the progressive potential of the organised diaspora, it will be necessary to acknowledge the alternative and socially mediated ways in which development might be imagined and enacted both in diaspora and at ‘home’. 相似文献
112.
Ben Riley 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2014,30(1):163-171
Experiential avoidance (EA) has been shown to be an important etiological and maintenance factor in a wide range psychopathology that includes addictive, anxiety, depressive and impulse control disorders. One common form of EA is thought suppression. Problem gambling causes enormous problems for afflicted individuals and has major social costs for their families and the community. Despite increasing interest in the contribution of EA to a broad range of psychological problems, its association with problem gambling has not previously been empirically investigated. The purpose of this cross-sectional study was to investigate the relationship between EA, thought suppression, and mindfulness among a group of 103 treatment seeking problem gamblers. Of particular interest was the extent to which EA accounted for the relationships between problem gambling and the two theoretically opposing constructs: thought suppression and mindfulness. Results showed EA was predictive of problem gambling. Thought suppression was positively associated and mindfulness negatively associated with problem gambling, and these relationships were mediated by EA. Directions for future research are suggested which include the application of treatments for problem gambling that undermine EA, such as acceptance and mindfulness based therapies. 相似文献
113.
In spite of the belief instilled by the New Public Management reforms that nonprofit organizations (NPOs) can benefit from more management, more measurement and more market practices, systematic knowledge on the organizational effects of NPOs incorporating business practices in their day‐to‐day functioning remains absent to date. This research note addresses this limitation by reviewing 49 research articles. The focus lies on the redefinition of nonprofits' mission and income streams, changing governance arrangements and shifting management practices. We find that, despite numerous detrimental effects cited in the literature, (a) generating commercial income can contribute to the financial stability of NPOs, and (b) hybridization towards the market domain can strengthen the organizational legitimacy of NPOs, suggesting that imitating for‐profit enterprises might contribute to nonprofit functioning in perception, rather than in practice. 相似文献
114.
Skew normal distribution is an alternative distribution to the normal distribution to accommodate asymmetry. Since then extensive studies have been done on applying Azzalini’s skewness mechanism to other well-known distributions, such as skew-t distribution, which is more flexible and can better accommodate long tailed data than the skew normal one. The Kumaraswamy generalized distribution (Kw ? F) is another new class of distribution which is capable of fitting skewed data that can not be fitted well by existing distributions. Such a distribution has been widely studied and various versions of generalization of this distribution family have been introduced. In this article, we introduce a new generalization of the skew-t distribution based on the Kumaraswamy generalized distribution. The new class of distribution, which we call the Kumaraswamy skew-t (KwST) has the ability of fitting skewed, long, and heavy-tailed data and is more flexible than the skew-t distribution as it contains the skew-t distribution as a special case. Related properties of this distribution family such as mathematical properties, moments, and order statistics are discussed. The proposed distribution is applied to a real dataset to illustrate the estimation procedure. 相似文献
115.
We investigate how we can bound a discrete time Markov chain (DTMC) by a stochastic matrix with a low rank decomposition. In the first part of the article, we show the links with previous results for matrices with a decomposition of size 1 or 2. Then we show how the complexity of the analysis for steady-state and transient distributions can be simplified when we take into account the decomposition. Finally, we show how we can obtain a monotone stochastic upper bound with a low rank decomposition. 相似文献
116.
Ben Armstrong 《统计学通讯:模拟与计算》2013,42(3):529-544
This paper considers the problem of estimating the linear parameters of a Generalised Linear Model (GLM) when the explanatory variable is subject to measurement error. In this situation the induced model for dependence on the approximate explanatory variable is not usually of GLM form. However, when the distribution of measurement error is known or estimated from replicated measurements, application of the GLIM iteratively reweighted least squares algorithm with transformed data and weighting is shown to produce maximum quasi likelihood estimates in many cases. Details of this approach are given for two particular generalized linear models; simulation results illustrate the usefulness of the theory for these models. 相似文献
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Two effects of occupational structure on nuptiality levels are examined: a direct functional effect related to the influence of socioeconomic characteristics on the feasibility and desirability of marriage, and an indirect structural effect related to nuptiality levels via sex selective migration patterns and population sex ratios. Our analysis shows that nuptiality levels in nineteenth century English and Welsh districts were responsive to occupational variation and that both direct and indirect effects were significant. Our results suggest that socioeconomic factors, often overlooked in favor of cultural explanation, must be considered in the analysis of nuptiality. 相似文献
120.
Seasonality and vertical structure of light-attracted insect communities in a dipterocarp forest in Sarawak 总被引:6,自引:0,他引:6
Makoto Kato Tamiji Inoue Abang Abdul Hamid Teruyoshi Nagamitsu Mahamud Ben Merdek Abdul Rahman Nona Takao Itino Seiki Yamane Takakazu Yumoto 《Researches on Population Ecology》1995,37(1):59-79
Nocturnal flying insects were collected monthly for 13 months using ultra violet light-traps set at various vertical levels
in a weakly-seasonal, tropical lowland dipterocarp forest in Sarawak, Malaysia. Abundance, faunal composition, size distribution
and guild structure of these samples were analyzed with respect to temperal and vertical distributions. The nocturnal flying
insect community in the canopy level was highly dominated by fig wasps (84%) in individual number, and by scarabaeid beetles
(28%) in weight. A principal component analysis on monthly catches detected non-random, seasonal trends of insect abundance.
The first two principal trends were an alternation of wetter (September to January) and less wet seasons (February to August)
and an alternation between the least wet (January to March) and the other seasons. Many insect groups were less abundant in
the least wet season than the other seasons, whilst inverse patterns were found in Scarabaeidae and Tenebrionidae. Significantly
positive and negative correlations between monthly catch and rainfall were detected only in ovule-feeders and in phloem-feeders,
respectively. Delayed, significant negative correlations between monthly catch and 1–3 month preceding rainfall were more
frequently detected in phytophages, phloem-feeders, seed-feeders, wood-borers and scavengers. The peak in abundance along
vertical levels were found at the canopy level (35 m) for phloem-, ovule-, seed-, root-, fungal-feeders and nectar collectors,
at an upper subcanopy level (25 m) for scavengers and aquatic predators, and at a middle subcanopy level (17 m) for ants.
Catches at the emergent level (45 m) did not exceed those at the canopy level. 相似文献