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51.
Fisk University began the genesis of HBCU graduate programs in 1880. During the next fifty years, several other HBCUs established graduate programs. That group included Lincoln, Howard, and Morgan State. However, only Lincoln University established a PhD program. The primary goal of this paper is to provide a historical perspective regarding the development of social work doctoral degree programs in the context of HBCU graduate degree program development. Although HBCU social work doctoral programs have only existed since 1978, they are significant and growing academic enterprises which are expanding the pool of doctoral level social work experts and professors of color. Further, these programs should be viewed contextually as producers of scholars on the larger landscape of the academy.  相似文献   
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53.
Urban Ecosystems - Land transformation for anthropogenic use is the leading cause of species decline globally. However, few species are able to succeed in anthropogenically disturbed environments....  相似文献   
54.
Abstract

At a time when public debates about radicalization of Muslim youth in the West are taking center stage and when questions about “home-grown” security threats are increasing in the wake of a number of terrorist attacks in many émigré societies, this article provides fresh empirical insights from the perspective of religious leadership. It outlines a picture of a highly diverse Muslim religious landscape where competing religious discourses are struggling to attract and support Muslim youth facing social dislocation and identity crises within increasingly contested social milieus. The article argues that a typology of religious leadership is clearly emerging where a spectrum of faith-based orientations and religious practice emphasize, to different degrees, notions of attachment to universal ethics and individual agency. The fact that conservative, sometimes radical, interpretations of such contestations represent a minority of voices is heartening even though the actual damage by such minority is often disproportionate to its actual size within the so-called silent majority. The empirical insights provided by the religious leaders interviewed for this study offer hope that the future of Western Muslims is more positive than we are led to think, if the possibility of combining devout faith with local political engagement becomes a real and sustainable conduit towards social inclusion and intercultural understanding and if necessary support and understanding are extended by the host communities.  相似文献   
55.
In the class of discrete time Markovian processes, two models are widely used, the Markov chain and the hidden Markov model. A major difference between these two models lies in the relation between successive outputs of the observed variable. In a visible Markov chain, these are directly correlated while in hidden models they are not. However, in some situations it is possible to observe both a hidden Markov chain and a direct relation between successive observed outputs. Unfortunately, the use of either a visible or a hidden model implies the suppression of one of these hypothesis. This paper prsents a Markovian model under random environment called the Double Chain Markov Model which takes into account the maijn features of both visible and hidden models. Its main purpose is the modeling of non-homogeneous time-series. It is very flexible and can be estimated with traditional methods. The model is applied on a sequence of wind speeds and it appears to model data more successfully than both the usual Markov chains and hidden Markov models.  相似文献   
56.
ABSTRACT

Transgender people seek social services for a variety of reasons. This literature review highlights needs assessments and social science research articles (N = 30) from the last 16 years that demonstrate the many ways in which social services are further revictimizing transgender people. Studies indicate that transgender people often encounter ignorance, hostility, and transphobic environments while attempting to access social services, and these environments can dissuade transgender people from gaining needed care. Suggestions are made to address these inequalities and include simple measures that social service agencies can begin with to make their services more transinclusive. Future research should address the bias in social services more directly and also develop a clear plan of action and best practices to help agencies remove discrimination from social service settings.  相似文献   
57.
Methods for comparing designs for a random (or mixed) linear model have focused primarily on criteria based on single-valued functions. In general, these functions are difficult to use, because of their complex forms, in addition to their dependence on the model's unknown variance components. In this paper, a graphical approach is presented for comparing designs for random models. The one-way model is used for illustration. The proposed approach is based on using quantiles of an estimator of a function of the variance components. The dependence of these quantiles on the true values of the variance components is depicted by plotting the so-called quantile dispersion graphs (QDGs), which provide a comprehensive picture of the quality of estimation obtained with a given design. The QDGs can therefore be used to compare several candidate designs. Two methods of estimation of variance components are considered, namely analysis of variance and maximum-likelihood estimation.  相似文献   
58.
Measurement error is well known to cause bias in estimated regression coefficients and a loss of power for detecting associations. Methods commonly used to correct for bias often require auxiliary data. We develop a solution for investigating associations between the change in an imprecisely measured outcome and precisely measured predictors, adjusting for the baseline value of the outcome when auxiliary data are not available. We require the specification of ranges for the reliability or the measurement error variance. The solution allows one to investigate the associations for change and to assess the impact of the measurement error.  相似文献   
59.
The demand by stakeholders for information about companies’ social and environmental performance has led to sustainability reporting becoming essential. The Global Reporting Initiative (GRI) guidelines are the international reporting standard whereas the Johannesburg Securities Exchange Socially Responsible Investment (JSE SRI) Index guidelines are used in South Africa. Although South Africa is regarded as one of the leaders in sustainability reporting in the world, the JSE SRI Index is still a relatively new standard and its efficiency will only be proved over time. The research on which this paper is based, determined whether reporting patterns exist across specific market sectors of the sustainability reports of companies listed on the JSE in order to establish if the JSE SRI Index guidelines on reporting are efficient. Results indicated that all the selected market sectors reported on the environment, society and governance (ESG) categories as per requirements of the JSE SRI Index. The mining and materials sector reported more in the environment and the society categories than the other sectors, while in the governance category less reporting on indirect impacts by all the sectors was noted. The implication of this is that in general, companies find the JSE SRI Index guidelines on reporting easy to implement. However, less reporting of companies’ indirect impacts on their operating environments could mean that there is still a lack of completeness and transparency from the companies’ reports, which could be as a result of a lack of firmer guidelines by the JSE SRI Index guidelines on reporting of such issues.  相似文献   
60.
The male pelvic floor muscles comprise a pair of compound muscle layers referred to as the levator ani. Studies have shown that pelvic floor muscle strength is affected by physical activity. This study aimed to assess male pelvic floor muscle strength through manometry of the external anal sphincter and evaluation of its association with physical activity level, BMI, and rectal pressure in healthy men. To assess physical activity level over the previous week, we used the International Physical Activity Questionnaire 8 (IPAQ). Pelvic floor muscle strength was assessed via anorectal manometry. The results shows a negative correlation between resting pressure and MET, a positive correlation between rectal pressure and resting and maximum pressure. The novel finding of this study is a negative correlation between walking and pelvic floor strength. This study raises new questions about the understanding of the interaction among physical activity, intraabdominal pressure, and pelvic floor strength in the physiology of continence in men.  相似文献   
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