911 resultados para Cixi, Empress dowager of China, 1835-1908


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Founded upon facts in the life of the Empress dowager of China.

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Mode of access: Internet.

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Forty-five male yaks (born April 2001) were studied to determine how seasonal changes on the Qinghai-Tibetan plateau affected BW and body composition. Thirty yaks were weighed monthly from birth to 26 mo of age to determine seasonal changes in BW. The remaining 15 yaks were allocated randomly to five groups (three yaks per group), designated for slaughter at 13, 15, 18, 22, and 25 mo to measure seasonal effects on body chemical composition. All yaks were grazed on the alpine-meadow grassland of the plateau without any supplementation. All BW and body composition data were calculated on an individual basis. Body weight and body composition data were both compared across seven growth periods spanning 2 yr and defined by season. From April (birth) to December 2001 of the first growing season, yak BW increased (P < 0.01); however, during the subsequent cold season (December 2001 to May 2002), BW decreased (P < 0.01). The second growing season ran from May 2002 (13 mo of age) to October 2002 (18 mo of age), and the second live weight-loss season ran from October 2002 until May 2003. The weight loss experienced by yaks during the first weight loss season was 25.64% of the total weight gain in the first growing season. The weight loss experienced by yaks during the second weight-loss season was 29.73% of the total weight gain in the second growing season. Energy retention in the second growing season was 291.07 MJ, 50.8% of which was consumed during the subsequent cold season. Energy accumulation in the summer (from May to July) and fall (from July to October) of the second growing season did not differ (5.01 and 6.30 MJ/kg of EBW gain, respectively; P = 0.63). The energy mobilized during the second winter (from October 2002 to February 2003) was 16.49 MJ/kg of EBW, and in the second spring (from February to May 2003), it was 9.06 MJ/kg of EBW. These data suggest that the decrease in grazing yak BW during the first cold season is much less than during the second cold season, and that the energy content per unit of BW mobilized is greater (P = 0.02) in winter than in spring. Results from this study demonstrate highly efficient compensatory growth in grazing yaks following the first weight loss period during the first cold season. This benefit could be exploited by herders to improve yak production. Yaks may have developed a type of self-protection mechanism to overcome the long cold seasons in the Qinghai-Tibetan plateau.

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Mode of access: Internet.

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"Printed in China."

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Background Zoonotic schistosomiasis japonica is a major public health problem in China. Bovines, particularly water buffaloes, are thought to play a major role in the transmission of schistosomiasis to humans in China. Preliminary results (1998–2003) of a praziquantel (PZQ)-based pilot intervention study we undertook provided proof of principle that water buffaloes are major reservoir hosts for S. japonicum in the Poyang Lake region, Jiangxi Province. Methods and Findings Here we present the results of a cluster-randomised intervention trial (2004–2007) undertaken in Hunan and Jiangxi Provinces, with increased power and more general applicability to the lake and marshlands regions of southern China. The trial involved four matched pairs of villages with one village within each pair randomly selected as a control (human PZQ treatment only), leaving the other as the intervention (human and bovine PZQ treatment). A sentinel cohort of people to be monitored for new infections for the duration of the study was selected from each village. Results showed that combined human and bovine chemotherapy with PZQ had a greater effect on human incidence than human PZQ treatment alone. Conclusions The results from this study, supported by previous experimental evidence, confirms that bovines are the major reservoir host of human schistosomiasis in the lake and marshland regions of southern China, and reinforce the rationale for the development and deployment of a transmission blocking anti-S. japonicum vaccine targeting bovines.

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Transnational nurse migration is a growing phenomenon. However, relatively little is known about the experiences of immigrant nurses and particularly about non-English speaking background nurses who work in more economically developed countries. Informed by a symbolic interactionist framework, this research explored the experience of China-educated nurses working in the Australian health care system. Using a modified constructivist grounded theory method, the main source of data were 46 face to face in-depth interviews with 28 China-educated nurses in two major cities in Australia. The key findings of this research are fourfold. First, the core category developed in this study is reconciling different realities, which inserts a theoretical understanding beyond the concepts of acculturation, assimilation, and integration. Second, in contrast to the dominant discourse which reduces the experience of immigrant nurses to language and culture, this research concludes that it was not just about language and nor was it simply about culture. Third, rather than focus on the negative aspects of difference as in the immigration literature and in the practice of nursing, this research points to the importance of recognising the social value of difference. Finally, the prevailing view that the experience of immigrant nurses is largely negative belies its complexities. This research concludes that it is naïve to define the experience as either good or bad. Rather, ambivalence was the essential feature of the experience and a more appropriate theoretical concept. This research produced a theoretical understanding of the experience of China-educated nurses working in Australia. The findings may not only inform Chinese nurses who wish to immigrate but also contribute to the implementation of more effective support services for immigrant nurses in Australian health care organisations.