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51.
Examining the concepts underpinning the reasoning processes of social worker's decision‐making provides important insights into how social work practice is undertaken. This paper examines one of the major discourses used by social workers in decision reasoning in a non‐governmental organization child protection context in Aotearoa/New Zealand: family maintenance. This study found that family maintenance as a concept was strongly privileged by social workers. This resulted in attempts to preserve families and created a hierarchy of preferred decision outcomes. A preference for family maintenance was supported by legal, moral, psychological and Māori cultural concepts. This pattern of constructs underpinned the ‘weighing up of harms’ when considering removal, and generally reflected a child welfare orientation. In addition to this, it was found that ‘family’ was broadly defined, and could include people who had a relationship with the children, or Māori definitions of extended family, in addition to legal ones.  相似文献   
52.
This article presents an overview of the monetary benefits available in the context of long‐term care provided by family or other informal carers in 11 old and 10 new EU member states. All but one country in our sample offer at least some monetary benefits that can be used to help finance informal care. Old EU member states tend to direct benefits to individuals in need of care, whereas new EU member states place more emphasis on benefits for carers. Among new EU member states, monetary benefits are less often means‐tested and tend to be lower compared with benefits in old EU member states. Because social policies in many countries increasingly rely on monetary benefits rather than on benefits in kind and because the share of informal care in the overall provision of elderly care will scarcely decline, monetary benefit incentives for labour market participation need to be carefully monitored.  相似文献   
53.
The study examines the determinants of social expenditure in Sri Lanka for the period 1970–2010. The data are from a new data set assembled by the authors. The social spending data are collected from the Central Bank of Sri Lanka on education, health, and also on welfare spending. The study explains the determinants of social spending considering the demand‐side and the supply‐side driving forces and finds that inequality issues have been a major concern of social policy in Sri Lanka. Similarly, this study implies the influence of political behavior to satisfy voters as explained by the fiscal illusion theory. The globalization is not significant for social expenditure as commonly assumed in developed countries. Even the consequences of the self‐interested behavior of bureaucrats are not evident in the Sri Lankan welfare sector.  相似文献   
54.
The working‐class is typically regarded as the driving force of welfare state development. Yet, some argue that the middle‐classes' beneficial involvement in the welfare state is crucial for its financial sustainability and popular legitimacy. Against this backdrop, we investigate how recent welfare state reforms in Germany which affect the status of the middle‐class are viewed and discussed by this group. Germany is a particularly interesting case because its welfare state is seen to be centred on the desires of the middle‐class, especially through its focus on status maintenance and horizontal redistribution over the life‐course. However, the move from status maintenance to minimum income support in unemployment provision and the strengthening of private old age provision challenge this assumption. Thus, we ask how the German middle‐class views the emerging abandonment of the principle of status maintenance and the shift from collective to individual responsibility. Based on qualitative material from focus groups, we find that individual responsibility is generally supported, but that the state is still assigned responsibility for providing basic levels of social security. Furthermore, for those groups seen as less capable of acting individually responsible (e.g. the poor or long‐term unemployed) the ‘inducement’ of – or assistance for – individually responsible behaviour by the state is demanded. Overall, while the principle of ‘individual responsibility’ seems to find some resonance among the middle‐class members interviewed, they still try to balance individual and collective responsibility.  相似文献   
55.
In recent years, immunological science has evolved, and cancer vaccines are now approved and available for treating existing cancers. Because cancer vaccines require time to elicit an immune response, a delayed treatment effect is expected and is actually observed in drug approval studies. Accordingly, we propose the evaluation of survival endpoints by weighted log‐rank tests with the Fleming–Harrington class of weights. We consider group sequential monitoring, which allows early efficacy stopping, and determine a semiparametric information fraction for the Fleming–Harrington family of weights, which is necessary for the error spending function. Moreover, we give a flexible survival model in cancer vaccine studies that considers not only the delayed treatment effect but also the long‐term survivors. In a Monte Carlo simulation study, we illustrate that when the primary analysis is a weighted log‐rank test emphasizing the late differences, the proposed information fraction can be a useful alternative to the surrogate information fraction, which is proportional to the number of events. Copyright © 2016 John Wiley & Sons, Ltd.  相似文献   
56.
Bioequivalence (BE) studies are designed to show that two formulations of one drug are equivalent and they play an important role in drug development. When in a design stage, it is possible that there is a high degree of uncertainty on variability of the formulations and the actual performance of the test versus reference formulation. Therefore, an interim look may be desirable to stop the study if there is no chance of claiming BE at the end (futility), or claim BE if evidence is sufficient (efficacy), or adjust the sample size. Sequential design approaches specially for BE studies have been proposed previously in publications. We applied modification to the existing methods focusing on simplified multiplicity adjustment and futility stopping. We name our method modified sequential design for BE studies (MSDBE). Simulation results demonstrate comparable performance between MSDBE and the original published methods while MSDBE offers more transparency and better applicability. The R package MSDBE is available at https://sites.google.com/site/modsdbe/ . Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
57.
Today there are more than 80,000 chemicals in commerce and the environment. The potential human health risks are unknown for the vast majority of these chemicals as they lack human health risk assessments, toxicity reference values, and risk screening values. We aim to use computational toxicology and quantitative high‐throughput screening (qHTS) technologies to fill these data gaps, and begin to prioritize these chemicals for additional assessment. In this pilot, we demonstrate how we were able to identify that benzo[k]fluoranthene may induce DNA damage and steatosis using qHTS data and two separate adverse outcome pathways (AOPs). We also demonstrate how bootstrap natural spline‐based meta‐regression can be used to integrate data across multiple assay replicates to generate a concentration–response curve. We used this analysis to calculate an in vitro point of departure of 0.751 μM and risk‐specific in vitro concentrations of 0.29 μM and 0.28 μM for 1:1,000 and 1:10,000 risk, respectively, for DNA damage. Based on the available evidence, and considering that only a single HSD17B4 assay is available, we have low overall confidence in the steatosis hazard identification. This case study suggests that coupling qHTS assays with AOPs and ontologies will facilitate hazard identification. Combining this with quantitative evidence integration methods, such as bootstrap meta‐regression, may allow risk assessors to identify points of departure and risk‐specific internal/in vitro concentrations. These results are sufficient to prioritize the chemicals; however, in the longer term we will need to estimate external doses for risk screening purposes, such as through margin of exposure methods.  相似文献   
58.
Louis Anthony Cox  Jr. 《Risk analysis》2011,31(10):1543-1560
Whether crystalline silica (CS) exposure increases risk of lung cancer in humans without silicosis, and, if so, whether the exposure‐response relation has a threshold, have been much debated. Epidemiological evidence is ambiguous and conflicting. Experimental data show that high levels of CS cause lung cancer in rats, although not in other species, including mice, guinea pigs, or hamsters; but the relevance of such animal data to humans has been uncertain. This article applies recent insights into the toxicology of lung diseases caused by poorly soluble particles (PSPs), and by CS in particular, to model the exposure‐response relation between CS and risk of lung pathologies such as chronic inflammation, silicosis, fibrosis, and lung cancer. An inflammatory mode of action is described, having substantial empirical support, in which exposure increases alveolar macrophages and neutrophils in the alveolar epithelium, leading to increased reactive oxygen species (ROS) and nitrogen species (RNS), pro‐inflammatory mediators such as TNF‐alpha, and eventual damage to lung tissue and epithelial hyperplasia, resulting in fibrosis and increased lung cancer risk among silicotics. This mode of action involves several positive feedback loops. Exposures that increase the gain factors around such loops can create a disease state with elevated levels of ROS, TNF‐alpha, TGF‐beta, alveolar macrophages, and neutrophils. This mechanism implies a “tipping point” threshold for the exposure‐response relation. Applying this new model to epidemiological data, we conclude that current permissible exposure levels, on the order of 0.1 mg/m3, are probably below the threshold for triggering lung diseases in humans.  相似文献   
59.
Social work in the United Kingdom is an activity that benefits from, and often requires, co‐operation between different staff and across different professions. How this is to be achieved has been a central dilemma for practice and policy for many years. Primary care health services often play a key role. New policy and practice developments are designed to promote inter‐professional working with children, where research has shown significant problems in the community‐based health care of looked after children, children leaving care, and children at serious risk. There is, however, little evidence from research that supports current developments in inter‐professional practice; analysis of the particular nature of the inter‐professional problems is lacking, as are therefore the relevant inter‐professional solutions. A framework for better analysis, linked to developments in practice‐based research, one that would yield significant improvements for children's welfare, is presented here.  相似文献   
60.
After observing ostracism or social exclusion, older children, adolescents and adults report decreased satisfaction of the need for control. Attempting to regain control can motivate aggression in ostracized adults. Research has shown that the onset of ostracism’s harmful effects on children’s behavior is at preschool age. We investigated whether preschoolers would exert more control after witnessing ostracism. A sample of 53 children (Mage = 5 years, 5 months) first watched priming videos either showing ostracism or not. Subsequently, they participated in two ball games. In both of the games (order counterbalanced), children could control the flow of a ball’s motion, either live between two people (i.e., social control) or between two bars on a laptop screen (i.e., non‐social control). Overall, children understood social exclusion when it was displayed in the videos. We found an effect of observed ostracism only on social control. Four‐ to five‐year‐old boys who witnessed ostracism stopped a ball game between two persons longer than boys who did not witness ostracism. Our results suggest that observing social exclusion elevates young boys’ need for control over a social situation. Girls showed a different pattern but their responses did not differ significantly between ostracism and non‐ostracism conditions.  相似文献   
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