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371.
The effects of age and experience on accident involvement for bus drivers were investigated, with special emphasis upon the first years of being an operator, using two methods. First, direct calculations between these variables were undertaken. Thereafter, a variant of the method of quasi-induced exposure (a ratio of culpable versus nonculpable accidents in the population) was used and referred to as the indirect method. These methods yielded fairly similar results, given that the samples used were drawn from the same population but only partly overlapping. It was found that experience had the strongest effect on accidents in the first year of driving, while age had a u-shaped association with accidents, that is, young and old drivers had more accidents, something that was more apparent when experience was held constant. These results show that, for bus drivers, experience is initially more important than age, but after two or three years, the effect is small. Thereafter, age is the more discernible variable, although it is a very weak factor in predicting crash risk. 相似文献
372.
Despite that interaction terms are standard tools of regression analysis, the side effects of the inclusion of these terms in models estimated by ordinary least squares (OLS) are yet not fully penetrated. The inclusion of interaction effects induces multicollinearity problems since all non zero values are equal between the interaction term and the regressor. In this article, we propose a procedure to remedy this problem by the use of new ridge regression (RR) shrinkage parameters—which we call the asymmetric interaction ridge (AIR) regression method. By means of Monte Carlo simulations we evaluate both OLS and AIR using the mean square error (MSE) performance criterion. The result from the simulation study confirms our hypothesis that AIR always should be preferred to OLS since it has a lower estimated MSE. Moreover, the advantages of our new method are demonstrated in an empirical application where positive asymmetric price transmission effects are exposed for the mortgage interest rates of Handelsbanken Stadshypotek. It is observed that the mortgage interest rates increase more fully and rapidly to an increase in the bank's borrowing costs than to a decrease. This asymmetry is defined as positive asymmetric price transmission (APT). 相似文献
373.
374.
Existential social work and the quest for existential meaning and well-being: A conceptual framework
Håkan Nilsson 《Journal of Religion & Spirituality in Social Work》2018,37(1):64-76
ABSTRACTThe aim of this article is to conceptualize “existential social work.” A greater understanding of what existential social work means may enable social workers and those studying social work to see how its practice can reveal “the truth” about human existence and how they, as professionals, can enhance existential meaning and existential well-being among their clients. In such work, existential social workers have at their disposal tools such as the Frankl therapeutic approach to existential analysis (i.e., logotherapy) as well as spiritual-sensitive modalities (prayer and mindfulness). To interpret and understand apparent phenomena in the therapy is the ultimate goal with existential social work practices, thus providing clients with the opportunity to discover the meaning that exists in themselves. In addition, these practices pave the way for existential well-being. 相似文献
375.
Sylvia Frühwirth-Schnatter Rudolf Frühwirth Leonhard Held Håvard Rue 《Statistics and Computing》2009,19(4):479-492
The article considers Bayesian analysis of hierarchical models for count, binomial and multinomial data using efficient MCMC
sampling procedures. To this end, an improved method of auxiliary mixture sampling is proposed. In contrast to previously
proposed samplers the method uses a bounded number of latent variables per observation, independent of the intensity of the
underlying Poisson process in the case of count data, or of the number of experiments in the case of binomial and multinomial
data. The bounded number of latent variables results in a more general error distribution, which is a negative log-Gamma distribution
with arbitrary integer shape parameter. The required approximations of these distributions by Gaussian mixtures have been
computed. Overall, the improvement leads to a substantial increase in efficiency of auxiliary mixture sampling for highly
structured models. The method is illustrated for finite mixtures of generalized linear models and an epidemiological case
study. 相似文献
376.
This article presents a field study of technology-supported elderly care analyzed from an activity theory perspective. Leont’ev’s hierarchical structure of activity is used to analyze how elderly people learn new technology-mediated care practices. We also used Engeström’s activity system in studying particular work contexts. We combined activity theory with Corbin and Strauss’s trajectory concept to represent a time line perspective on technology-mediated elderly care. This combination made it easier to focus on transitions between the stages in the trajectory. Our analysis of technology-supported care emphasizes providing for increasing levels of automation in care and shifting relations between the subject and the tool as a way to maintain the stability of the object of activity. 相似文献
377.
Dorothea Bowyer Milissa Deitz Anne Jamison Chloe E. Taylor Erika Gyengesi Jaime Ross Hollie Hammond Anita Eseosa Ogbeide Tinashe Dune 《Gender, Work and Organization》2022,29(1):309-341
Based on a collection of auto-ethnographic narratives that reflect our experiences as academic mothers at an Australian university, this paper seeks to illustrate the impact of COVID-19 on our career cycles in order to explore alternative feminist models of progression and practice in Higher Education. Collectively, we span multiple disciplines, parenting profiles, and racial/ethnic backgrounds. Our narratives (initiated in 2019) explicate four focal points in our careers as a foundation for analyzing self-definitions of professional identity: pre- and post-maternity career break; and pre- and post-COVID-19 career. We have modeled this research on a collective feminist research practice that is generative and empowering in terms of self-reflective models of collaborative research. Considering this practice and these narratives, we argue for a de-centering of masculinized career cycle patterns and progression pathways both now and beyond COVID-19. This represents both a challenge to neo-liberal norms of academic productivity, as well as a call to radically enhance institutional gender equality policies and practice. 相似文献
378.
Tina Herman Buck Melanie J. Church Anita Foster Elizabeth McHugh Jessica Robertson Michael Rodriguez 《Serials Review》2017,43(2):163-178
This quarter's column spans nearly eight months in 2016 and comprises reports from three library conferences. The UKSG 39th Annual Conference and Exhibition took place in the Bournemouth International Center (BIC), April 11 to April 13. The Potomac Technical Processing Librarians 92nd Annual Meeting convened October 21 at the University of Richmond. The Charleston Conference took place in Charleston, SC, October 31 to November 5. 相似文献
379.
Anita Skrstad Storhaug Bente Heggem Kojan Grethe Fjellviks 《Child & Family Social Work》2019,24(2):165-172
Emergency placements in child welfare services have increased during the last 10 years in Norway. At the time of placement, some of these children have been in the child welfare system for several years. Based on qualitative interviews, our study explores Norwegian child welfare workers' perceptions of long‐term cases resulting in emergency placements. The participants reported that they felt they had intervened too late, as it took them too long to understand the severity of the situation. This occurred mainly due to three factors: (a) The work had mainly been based on the parents' premises; (b) having too much distance to the child, as they talked too little with the child, too late in the process; (c) an experience of lacking methodological skills needed and sufficient opportunities to conduct proper observations and assessments; (d) supportive measures were tried for too long, and these measures were not properly evaluated. Giving other professionals' assessments considerable weight in the decision‐making process, and the use of legal language rather than independent, professional assessments, can be seen as another way of distancing themselves from both the family and the decisions being made. 相似文献
380.