654 research outputs found

    New frontiers in qualitative longitudinal research: an agenda for research

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    This paper outlines the state of the art in qualitative longitudinal methodology, reflecting on more than 10 years of development since a previous special issue on QLR was published by the International Journal of Social Research Methodology in 2003. The papers presented in this special issue emerge from a methodological innovation network that brought together an international community of researchers in order to map new frontiers for the method. This paper summarises the development of the method from a design to a sensibility, identifying three new frontiers as part of a future research agenda including: the need for a processual imaginary; experimentation with temporal perspectives and orientations and explicating the temporal affordances of our methods

    Getting antimalarials on target: impact of national roll-out of malaria rapid diagnostic tests on health facility treatment in three regions of Tanzania.

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    OBJECTIVES: Parasitological confirmation of malaria prior to treatment is recommended for patients of all ages, with malaria rapid diagnostic tests (mRDTs) an important tool to target artemisinin-based combination therapies (ACTs) to patients with malaria. To evaluate the impact on case management practices of routine government implementation of mRDTs, we conducted large-scale health facility surveys in three regions of Tanzania before and after mRDT roll-out. METHODS: Febrile patients at randomly selected health facilities were interviewed about care received at the facility, and blood samples were collected for reference blood smears. Health facility staff were interviewed about their qualifications and availability of malaria diagnostics and drugs. RESULTS: The percentage of febrile patients tested for malaria at the facility increased from 15.8% in 2010 to 54.9% in 2012. ACTs were obtained by 65.8% of patients positive by reference blood smear in 2010 and by 50.2% in 2012 (P = 0.0675); no antimalarial was obtained by 57.8% of malaria-negative patients in 2010 and by 82.3% in 2012 (P < 0.0001). Overall, ACT use decreased (39.9-21.3%, P < 0.0001) and antibiotic use increased (31.2-48.5%, P < 0.0001). CONCLUSION: Roll-out of mRDTs in Tanzania dramatically improved diagnostic testing for malaria and reduced overuse of ACTs for patients without parasitemia. However, post-roll-out almost 50% of febrile patients did not receive a diagnostic test, and almost 50% of patients testing positive did not receive ACTs. Stock-outs of ACTs and mRDTs were important problems. Further investigation is needed to determine reasons for not providing ACTs to patients with malaria and potential for inappropriate antibiotic use

    The effect of autonomy in sustaining social entrepreneurial intention through management education: the cases of Malaysia and Scotland

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    he study examines what is the role of autonomy on individual social entrepreneurial intention (EI) for students. Furthermore, it examines the differences between the emerging market setting and developed market to gather an understanding of context differences. Using principal component analysis the study finds that the motivators of EI can be divided into 5 components. Following from that the autonomy variable can be divided into 3 sub components. The results present differences in propensity towards EI in the two country settings along with differences in propensity towards social entrepreneurship. The results are unique as they test EI variables from the literature on social entrepreneurship and in an emerging market context. The role of autonomy as a bridge between education and attitude or intention is presented

    Identification and transcript analysis of a novel wallaby (Macropus eugenii) basal-like breast cancer cell line

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    <p>Abstract</p> <p>Background</p> <p>A wide variety of animal models have been used to study human breast cancer. Murine, feline and canine mammary tumor cell lines have been studied for several decades and have been shown to have numerous aspects in common with human breast cancer. It is clear that new comparative approaches to study cancer etiology are likely to be productive.</p> <p>Results</p> <p>A continuous line of breast carcinoma cells (WalBC) was established from a primary breast cancer that spontaneously arose in a female tammar wallaby (<it>Macropus eugenii</it>). The primary tumor was 1.5 cm<sup>3 </sup>and although large, did not appear to invade the stroma and lacked vimentin expression. The WalBC cell line was cultured from the primary tumor and passaged for 22 months. WalBC cells displayed an epithelial morphology when grown on plastic, were not EGF responsive, stained strongly for cyto-keratin and negatively for vimentin. WalBC cells were shown to be non-invasive within a Matrigel invasion assay and failed to produce tumors following transplantation into nude mice. Gene expression profiling of WalBC cells was performed using a cDNA microarray of nearly 10,000 mammary gland cDNA clones and compared to normal primary mammary cells and profiles of human breast cancer. Seventy-six genes were down-regulated and sixty-six genes were up-regulated in WalBC cells when compared to primary mammary cells. WalBC cells exhibited expression of known markers of basal invasive human breast cancers as well as increased KRT17, KRT 14 and KRT 19, DSP, s100A4, NDRG-1, ANXA1, TK1 and AQP3 gene expression and decreased gene expression of TIMP3, VIM and TAGLN. New targets for breast cancer treatment were identified such as ZONAB, PACSIN3, MRP8 and SUMO1 which have human homologues.</p> <p>Conclusion</p> <p>This study demonstrates how novel models of breast cancer can provide new fundamental clues regarding cancer etiology which may lead to new human treatments and therapies.</p
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