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31.
A system of predictors for estimating a finite population variance is defined and shown to be asymptotically design-unbiased (ADU) and asymptotically design-consistent (ADC) under probability sampling. An asymptotic mean squared error (MSE) of a generalized regression-type predictor, generated from the system, is obtained. The suggested predictor attains the minimum expected variance of any design-unbiased estimator when the superpopulation model is correct. The generalized regression-type predictor and the predictor suggested by Mukhopadhyay (1990) are compared.  相似文献   
32.
This paper considers an inventory system with non-instantaneous deteriorating item in which demand rate is a function of advertisement of an item and selling price. This paper aids the retailer in maximizing the total profit by determining optimal inventory and marketing parameters. In contrast to previous inventory models, an arbitrary holding cost rate and arbitrary deterioration rate have been incorporated to provide general framework to the model. First, a mathematical model is formulated and then some useful theoretical results have been framed to characterize the optimal solutions. The necessary and sufficient conditions for the existence and uniqueness of the optimal solutions are also derived. An algorithm is designed to find the optimum solutions of the proposed model. Numerical examples are included to illustrate the algorithmic procedure and the effects of key parameters are studied to analyze the behavior of the model.  相似文献   
33.
This article describes the development of a generic loss assessment methodology, which is applicable to earthquake and windstorm perils worldwide. The latest information regarding hazard estimation is first integrated with the parameters that best describe the intensity of the action of both windstorms and earthquakes on building structures, for events with defined average return periods or recurrence intervals. The subsequent evaluation of building vulnerability (damageability) under the action of both earthquake and windstorm loadings utilizes information on damage and loss from past events, along with an assessment of the key building properties (including age and quality of design and construction), to assess information about the ability of buildings to withstand such loadings and hence to assign a building type to the particular risk or portfolio of risks. This predicted damage information is then translated into risk-specific mathematical vulnerability functions, which enable numerical evaluation of the probability of building damage arising at various defined levels. By assigning cost factors to the defined damage levels, the associated computation of total loss at a given level of hazard may be achieved. This developed methodology is universal in the sense that it may be applied successfully to buildings situated in a variety of earthquake and windstorm environments, ranging from very low to extreme levels of hazard. As a loss prediction tool, it enables accurate estimation of losses from potential scenario events linked to defined return periods and, hence, can greatly assist risk assessment and planning.  相似文献   
34.
The authors analyze civilian occupations and employment data collected by the U.S. Census Bureau in 1960, 1970, 1980, 1990, and 2000 with respect to 6 kinds of work (Holland's RIASEC [Realistic, Investigative, Artistic, Social, Enterprising, Conventional] classification), employment, and gender. For the 1990 and 2000 censuses, kinds of work, gender, and income are analyzed, and for the 2000 census, kinds of work, age, and gender are examined. Past employment trends developed from census data are further analyzed with respect to Bureau of Labor Statistics employment projections through 2012. Implications for further research, employment policy, and career services are offered.  相似文献   
35.
In the aftermath of the economic recession that began in 2008, governmental bodies have been assisting private sector companies to create jobs. To increase financial performance under greater economic uncertainty and liquidity constraints, this study proposes that a leader's type of passion could explain why some project leaders who receive government funding succeed in creating jobs whereas others do not. Harmonious passion, a voluntary but not overpowering urge to engage in an activity, leads to higher job creation, especially under greater environmental complexity. Obsessive passion, an uncontrollable urge to engage in an activity, also leads to higher job creation, particularly under increasing environmental dynamism. Using survey data from 105 European Union projects and archival data on job creation from the EU funding agency, we find support for the proposed framework. The findings provide a basis for acknowledging the relevance of a leader's passion for environmental adaptation.  相似文献   
36.
Child and Adolescent Social Work Journal - Limited evidence exists of the effectiveness of combining cash transfers and family strengthening interventions in developing country contexts. This study...  相似文献   
37.
While services have been assisting women who have been victims of domestic violence for many years, it has only been in recent times, that children exposed to domestic violence have begun to receive attention by service providers as clients in their own right. A number of specialised programs have now been designed to meet the needs of these children by domestic violence services and agencies that have a child protection or child welfare/family support focus. This paper aims to describe the types of programs currently in operation across Australia which cater specifically for the needs of children who have been exposed to domestic violence by analysing programs listed on the Child Abuse Prevention Programs Database developed by the National Child Protection Clearinghouse. A number of suggestions are made with regard to the means by which therapeutic responses and research in this area could be enhanced.  相似文献   
38.
In response surface designs, it is not usually easy to handle the moment matrix X'X, especially for higher orders. This paper presents a method in which the moment matrix of a response surface of any order can be standardized, i.e., X'X splits into a diagonal matrix consisting of sub-matrices of lower order. This eases the calculation of the determinant and the inverse of X'X. The method has been illustrated with applications to second, third and fourth order response surfaces.  相似文献   
39.
This paper explores whether the field of sociology harbors a dismissive attitude towards religion. Specifically it examines whether introductory sociology textbooks present the classic secularization theory over the more recent religious economies explanation of religious change. The classical secularization thesis suggests that religion is declining in importance in modern societies and may disappear completely. The religious economies perspective proposes that religion has actually become more influential and dynamic over time. While both theories are well represented in the sociology of religion literature, we explore whether generalist sociology textbooks reflect this reality. This article provides a content analysis of 31 introductory sociology textbooks published between 2003 and 2006. We assess the presence and promotion of the above theories in these textbooks. Our analysis reveals that 20 (65%) of the 31 textbooks in our study present only secularization theory, while seven (23%) of the textbooks cover both secularization theory and religious economies theory. We assess the ramifications of such a lopsided arrangement and conclude by encouraging a more open dialogue on this issue.  相似文献   
40.
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