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31.
We present an algorithm for learning oblique decision trees, called HHCART(G). Our decision tree combines learning concepts from two classification trees, HHCART and Geometric Decision Tree (GDT). HHCART(G) is a simplified HHCART algorithm that uses linear structure in the training examples, captured by a modified GDT angle bisector, to define splitting directions. At each node, we reflect the training examples with respect to the modified angle bisector to align this linear structure with the coordinate axes. Searching axis parallel splits in this reflected feature space provides an efficient and effective way of finding oblique splits in the original feature space. Our method is much simpler than HHCART because it only considers one reflected feature space for node splitting. HHCART considers multiple reflected feature spaces for node splitting making it more computationally intensive to build. Experimental results show that HHCART(G) is an effective classifier, producing compact trees with similar or better results than several other decision trees, including GDT and HHCART trees.  相似文献   
32.
Researchers consider older women in rural Appalachia to have low levels of agency and high levels of fatalism regarding decision making about cancer treatment. Using the life course perspective, we examined older women’s agency with information seeking about gynecological cancer. Semistructured interviews with 20 White women living in central Appalachia revealed four trajectories: Surrendering Control, Accepting Death, Self-Care, and Advocacy, each with its own forms of agency. Some women experienced personal transformation, increased self-efficacy, and a passion for community empowerment. Fatalism was not understood apart from placing trust in medical expertise. We implore researchers to further explore rural expressions of agency.  相似文献   
33.
This article develops an analysis of the concept of disciplinary neo-liberal feminism through a focus on gendered poverty alleviation strategies and illustrates the value of this through a discussion of microfinance. By locating this study within an analysis of the expansion of global capital accumulation, the article argues that the liberal frameworks of female empowerment and entrepreneurialism that are central to these programs and to feminism in this form, mask their underlying political, social and economic objectives. In contrast, a Marxist Feminist approach more adequately explains the interplay of class and gender that underpins poverty alleviation strategies. This article argues that in the context of financial crisis and reduced social provision, women living in poverty in the Global South were identified as targets for the expansion of global finance. Their integration into global financial networks via microfinance and other pro-poor strategies has facilitated the expansion of markets for credit while at the same time disciplining market participation through the twin forces of risk and incentive. Disciplinary neo-liberal feminism has underpinned this incorporation of women into global capital accumulation creating profound effects for households and families, with microfinance programs representing important sites of contestation for the politics of class and gender.  相似文献   
34.
Most orphaned children in China are cared for by their extended families or become state wards under the guardianship of child welfare institutions. Some exceptions are children who are found and cared for by families in the community, without a formalized adoption or foster relationship. In some locations, institutions now accept guardianship for these children and support the informal adoptive family to continue to care for them. This article examines the outcomes for these children as they became young adults by comparing these 12 children raised within the system as they approach or have approached young adulthood (now aged 16–40 years-old). Some of the participants were either informally adopted or lived in institutional care. The results of this study found that the family environment was more conducive to the young people’s wellbeing as they approached or entered adulthood. The participants raised in informal care appeared to be treated similar to the biological children in these families. When the institution formalized the state guardianship responsibility, it also meant the families had state resources for support to protect the children’s rights to economic security, education, health care, and social participation. This practice by the institution supported the addition of informal adoption, as one step closer to permanency than foster care. Future implications include considering this option to help promote the family system assisting these children, families, and the state.  相似文献   
35.
BackgroundHeideggerian hermeneutic phenomenology has been used widely to understand the meaning of lived experiences in health research. For midwifery scholars this approach enables deep understanding of women's and midwives’ lived experiences of specific phenomena. However, for beginning researchers this is not a methodology for the faint hearted. It requires a period of deep immersion to come to terms with at times impenetrable language and perplexing concepts.ObjectivesThis paper aims to assist midwives to untangle and examine some of the choices they face when they first come to terms with an understanding of this methodology and highlights the methodology's capacity to reveal midwifery authenticity and holistic practice.DiscussionThe illumination of a selection of various concepts underpinning hermeneutic phenomenology will inform midwives considering this methodology as suitable framework for exploring contemporary midwifery phenomena.  相似文献   
36.
Two Special Issues of the Clinical Social Work Journal have been dedicated to building on the social work discipline’s tradition and commitment to the supervision of staff and field education of students. These issues bring together contemporary theorizing, clinical supervisory and field education practice experience and wisdom, and research studies to contribute to the knowledge base for practicing supervisors and field educators. As the first of the Special Issues, this issue has been dedicated to the supervision of staff. In this Introduction, we share the salient aspects of the articles published, as they relate to contemporary social work supervision, relational considerations within the supervisory dyad, models of supervision for fields of specialization, as well as measurement and evaluation. Implications are shared, with highlights and connections for practicing supervisors made throughout.  相似文献   
37.
Entrepreneurism is widely regarded as being one way in which women can sidestep the sexism of male‐dominated institutionalized work environments and enter into a world in which men and women operate on a level playing field. Yet, in a corpus of stories of female entrepreneurs’ experiences, we noted that being ignored by men was a constant theme. Taking a social constructionist and narrative approach to identity, we analyse the gendered identity work that female entrepreneurs do in these stories and we seek to explicate the process through which female entrepreneurs do not evaluate being ignored by men as sexism‐in‐action. Using positioning theory as an analytical tool, we analyse these stories at three different levels: the here‐and‐now interaction between interviewer and storyteller; the there‐and‐then identity work of the characters in the storyworld; and the wider societal Discourses that the storytellers enact, and which are enacted by such identity work. Findings indicate that despite making gendered difference, inferiority and lack of agency relevant, the stories are not evaluated as sexism‐in‐action because the female entrepreneurs enact a postfeminist and neoliberal Discourse of freedom, autonomy and choice, rather than a feminist Discourse of discrimination and sexism.  相似文献   
38.
This installment of "Serials Spoken Here" covers events that transpired between late September and late October 2008. Reported herein are two Webinars, one on ONIX for Serials, the other on SUSHI, and two conferences: the eighty-fourth annual Meeting of the Potomac Technical Processing Librarians and the New England Library Association's Annual Conference.  相似文献   
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40.
Much has been written that details the decline in living standards following the ‘credit crunch’ in the UK. It remains that we understand to a lesser degree the lived reality of poverty through the Great Recession and into the era of austerity. This article draws on testimonies of 62 participants from low income households conducted in three different areas of the UK during 2012–13 to document the pressures that this period brought to bear on these households. According to these testimonies, the experience of poverty intensified in key respects: first, participants reported feeling, more than ever before, that they were ‘existing, rather than living’ due to the meagre budgets they were forced to live on; second, the precarious nature of work and social security contributed to a sense of insecurity that was all pervasive in our participants' lives; third, due to the pejorative political rhetoric and media coverage of poverty, our participants felt that their lives were placed under increased scrutiny which deleteriously impacted their wider relationships and sense of belonging. Our analysis demonstrates the profound consequences for those living on low incomes of the continued shift to residual forms of state welfare and the increased reliance on the ‘Big Society’ as a means to deal with the pressures identified in this article.  相似文献   
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