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111.
In this article I argue that in their current genealogical and philosophical configuration, qualitative longitudinal research (QLR) practices – and a wider regime of knowledge, ethical, moral, legal, technological, political and economic practices with which they are entangled – embed and enact representational assumptions in which the realities being investigated – time, change and continuity; the past, present and future – are taken as ontologically given and independent of these QLR (and wider) practices. My approach is to conceptualize QLR practices along nonrepresentational lines, through a philosophical framework that is able to materialize the constitutive effects of QLR (and wider) practices on the objects of study and knowledges produced. For this, I turn to Karen Barad’s posthumanist performative metaphysics – ‘agential realism’ – a framework that embodies and enacts a non-classical ontology in which entities are seen as constituted through material-discursive practices. On this account, QLR (and wider) practices are understood as an ineliminable and constitutive part of the realities they help bring into being.  相似文献   
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In this paper we study the robustness of the likelihood ratio, circular mean and circular trimmed mean test functionals in the context of tests of hypotheses regarding the mean direction of circular normal and wrapped normal distributions. We compute the level and power breakdown properties of the three test functionals and compare them. We find that the circular trimmed mean test functional has the best robustness properties for both the above-mentioned distributions. The level and power properties of the test statistics corresponding to these functionals are also studied. Two examples with real data are given for illustration. We also consider the problem of testing the mean direction of the von-Mises–Fisher distribution on the unit sphere and explore the robustness properties of the spherical mean direction and likelihood ratio test functionals.  相似文献   
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It is rare that family members other than the identified patient are followed over time in studies of therapy effectiveness. Family therapy is believed to be effective because it targets processes within the system that maintain symptoms. If these processes are changed, then all family members can benefit. Using a sample of 183 mother–child dyads from a study comparing family therapy for adult substance use versus an attention control, change in child's substance use (tobacco, alcohol, and marijuana) was estimated. Children who participated in family therapy with their mothers showed greater decreases in alcohol and tobacco use and were less likely to begin using compared to children whose mothers participated in the attention control condition.  相似文献   
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Blended families face unique challenges that differ greatly from those encountered by nuclear families. Societal stereotypes that view blended families as abnormal, taking nuclear family functioning as the prototype for all family units, create a lack of role clarity for each of the members involved. Although many strategies exist with which to help families, many are based on nuclear family systems and thus are inapplicable to blended families. The creation of a blended family life cycle specific to blended family systems could help members of a blended family create a successful family unit as they work with a counselor.  相似文献   
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The study highlights the challenges and opportunities in HIV/AIDS counseling. The major challenges are recruiting the right individuals and their capacity building and retention. The finding shows that most of the counselors are not befitting in terms of qualification and experience besides motivation, remuneration, and other issues. The study suggests that to ensure the effective counseling to reverse the epidemic, it is important to focus on such issues through appropriate policy interventions.  相似文献   
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