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141.
142.
Beatrice I. J. M. van der Heijden Arnold B. Bakker 《The Career development quarterly》2011,59(3):232-248
This study examines whether jobs that enable competence development and a constructive leadership style enhance workers' employability or career potential through their assumed positive relationship with work‐related flow (absorption, work enjoyment, and intrinsic work motivation). The authors conducted an explorative study with 303 pairs of employees and their direct supervisors working in a Dutch building company. Results indicate that self‐ratings of learning value of the current job and transformational leadership have an indirect relationship with supervisor ratings of employability through work‐related flow. 相似文献
143.
Provisional estimates from the 2001 census of India, which showed unusually high sex ratios for young children, have sparked renewed concern about the growing use of sex‐selective abortions to satisfy parental preferences for sons. According to the 1998–99 National Family Health Survey (NFHS‐2), in recent years the sex ratio at birth in India has been abnormally high (107–121 males per 100 females) in 16 of India's 26 states. Data from NFHS‐2 on abortions, sex ratios at birth, son preference, and the use of ultrasound and amniocentesis during pregnancy present compelling evidence of the extensive use of sex‐selective abortions, particularly in Gujarat, Haryana, and Punjab. The authors estimate that in the late 1990s more than 100,000 sex‐selective abortions of female fetuses were being performed annually in India. Recent efforts to expand and enforce government regulations against this practice may have some effect, but they are not likely to be completely successful without changes in the societal conditions that foster son preference. 相似文献
144.
Murray A. Straus Arnold S. Linsky Ronet Bachman-Prehn 《Social indicators research》1989,21(3):229-257
The State Stress Index (SSI) described in this paperI measures difference between the states of the United States, and differences over time, in the occurrence of stressful life events. The method of constructing the SSI is described and the scores for each of the American states in 1976 and 1982 are presented. There are large differences between the states in the stressfulness of life. The construct validity of the SSI was supported by analysis which show that the higher the SSI, the higher the incidence of behaviors that have long been assumed to be affected by stress, such as violence and heavy smoking and drinking, and suicide. Scores on the SSI revealed an increase in the stressfulness of life between 1976 and 1982, largely due to the economic recession in 1982. Despite this the 1982 rank order of the states was essentially the same as their relative position in 1976. The West remained the most stressful region of the United States, despite its other attractions, and the North Central and North East remained the least stressful regions, despite their rustbelt and frostbelt images. 相似文献
145.
Susan Johnson Steven Arnold 《Development policy review : the journal of the Overseas Development Institute》2012,30(6):719-748
Policy emphasis on financial‐sector development has shifted away from microfinance and towards the development of ‘inclusive financial markets’. But, for inclusion to take place, policy must address barriers to access. This article analyses the socio‐economic, demographic and geographical factors associated with financial‐service use across formal, semi‐formal and informal financial services in Kenya between 2006 and 2009, including the new and rapidly growing mobile‐phone‐based payments service – M‐PESA. It finds that, despite an expansion of services, evidence of access barriers is now clearer than it was in 2006. However, there is some evidence that M‐PESA is reversing age as a barrier to inclusion, but, as yet, it is more of a complement than a substitute for formal services. 相似文献
146.
Fran C. Blumberg Kirby Deater-Deckard Sandra L. Calvert Rachel M. Flynn C. Shawn Green David Arnold Patricia J. Brooks 《Social policy report / Society for Research in Child Development》2019,32(1):1-33
We document the need to examine digital game play and app use as a context for cognitive development, particularly during middle childhood. We highlight this developmental period as 6- through 12-year olds comprise a large swath of the preadult population that plays and uses these media forms. Surprisingly, this age range remains understudied with regard to the impact of their interactive media use as compared to young children and adolescents. This gap in knowledge about middle childhood may reflect strong and widely held concerns about the effects of digital games and apps before and after this period. These concerns include concurrent and subsequent influences of game use on very young children's and adolescents’ cognitive and socioemotional functioning. We highlight here what is currently known about the impact of media on young children and adolescents and what is not known about this impact in middle childhood. We then offer recommendations for the types of research that developmental scientists can undertake to examine the efficacy of digital games within the rapidly changing media ecology in which children live. We conclude with a discussion of media policies that we believe can help children benefit from their media use. Our hope is that this review will foster greater investigation of the cognitive socialization, as raised over 20 years ago by developmental psychologist and early games researcher Patricia Greenfield, that digital games serve during the middle childhood period, and childhood more generally. 相似文献
147.
It is already shown in Arnold and Stahlecker (2009) that, in linear regression, a uniformly best estimator exists in the class of all Γ-compatible linear affine estimators. Here, prior information is given by a fuzzy set Γ defined by its ellipsoidal α-cuts. Surprisingly, such a uniformly best linear affine estimator is uniformly best not only in the class of all Γ-compatible linear affine estimators but also in the class of all estimators satisfying a very weak and sensible condition. This property of a uniformly best linear affine estimator is shown in the present paper. Furthermore, two illustrative special cases are mentioned, where a generalized least squares estimator on the one hand and a general ridge or Kuks–Olman estimator on the other hand turn out to be uniformly best. 相似文献
148.
Elliot Rabinovich Arnold Maltz Rajiv K. Sinha 《Production and Operations Management》2008,17(3):320-337
We investigate trade‐offs among markups, service quality, and product attributes across customer, Internet retailer, and wholesaler echelons. Research has documented the reality of retail price dispersion, but little is known about how retail markups, in particular, are related to service quality and product attributes. For example, do Internet retailers deliver superior service in return for high markups? Do product characteristics affect the relationship between service and markups for retailers? To examine these issues, we first developed a model of Internet retail profitability that separates revenues and costs related to sales from other profit sources. This framework allowed us to position our work alongside the extant literature about Internet retailing. Moreover, it led us to synthesize service quality dimensions found in Internet retailing studies. We subsequently developed a critical‐event study based on the profit model and the synthesis of service quality dimensions to delineate service aspects that retailers should emphasize to address buyers' utility. Finally, we collected data from Internet purchases across retailers to isolate markup‐service quality trade‐offs along our delineated service aspects. We find that high markups are associated with superior performance across service quality dimensions. Furthermore, this trade‐off becomes more acutely defined when products with variable popularity are transacted. 相似文献
149.
In order to obtain optimal estimators in a generalized linear regression model we apply the minimax principle to the relative squared error. It turns out that this approach is equivalent to the application of the minimax principle to the absolute squared error when an ellipsoidal prior information set is given. We discuss the admissibility of these minimax estimators. Furthermore, a close relation to a Bayesian approach is derived. 相似文献
150.
Jennifer Arnold Lloyd Chittenden K.D. Ellis Jacob Eubanks Iris Godwin Elizabeth McDonald 《Serials Review》2013,39(3):175-187
AbstractThis article provides a background for Comics Librarianship and the sources which can be, and are, used. The author describes the application of FRBR (Functional Requirements for Bibliographic Records) for serials to the cataloging of the comic book format and ways to adapt these methods to flat MARC records, to aid in retrieval of items. Sample records are included for illustration of methods. 相似文献