نتایج جستجو برای: southwest china
تعداد نتایج: 212500 فیلتر نتایج به سال:
The HIV-1 epidemic among men-who-have-sex-with-men (MSM) continues to expand in China. A large-scale national survey we conducted on HIV-1 strains among MSM in 11 provinces in China from 2008 to 2013 (n = 920) identified a novel transmission cluster consisting of six strains (0.7%) that belonged to a new circulating recombinant form (designated CRF59_01B). CRF59_01B contains two subtype B segme...
[1] The observed trends in extreme precipitation events, and those in annual and seasonal mean precipitation in China during 1961–2001 are analyzed. The results show that the annual mean precipitation increases significantly in southwest, northwest, and east China, and decreases significantly in central, north and northeast China. The increasing trends in east China occurred mainly in summer, w...
The dengue viruses (DEN, genus Flavivirus, family Flaviviridae) are mosquito borne and have caused 100 million cases of dengue fever each year in most tropical and subtropical areas of the world. However, in the southwest area of Yunnan-Guizhou Plateau, China, the previous work demonstrated that different geographic strains of Aedes albopictus were susceptible to dengue virus. In this study, we...
Data on coal-burning endemic fluorosis throughout China and on the exposure-response relationship between concentrations of fluoride determined in coal samples and the prevalence of dental fluorosis reported from 17 representative surveillance stations in Southwest China were used to estimate the safety threshold for coal fluoride. Coal-burning endemic fluorosis occurs mainly in the mountainous...
Broussonetia papyrifera is an important native tree species with high economic value in southwest China. Its resources are drastically reduced because of over-harvesting and habitat fragmentation. In this study, 17 natural populations of B. papyrifera were analyzed using inter-simple sequence repeat (ISSR) markers to assess the genetic diversity and population structure. In total, 100 bands wer...
PURPOSE To determine the epidemiological characteristics of work-related eye injury in representative southwest region of China. METHODS Patients with eye injuries treated at the Ninth People's Hospital of Chongqing from 1 January 2014 to 31 December 2014 were included in the current study. All patients completed a comprehensive examination and interview. Demographic characteristics and injur...
PURPOSE To detect risk factors that may be related to chalazia in children in southwest China. DESIGN Prospective case-control study. METHODS The case group, 88 children with chalazia, was divided into 2 subgroups. One had 48 children 6 months to 6 years of age (defined as young children), and the other had 40 children 7 to 12 years of age (defined as older children). The control group cons...
This study was aimed to investigate the direction and magnitude of soil organic carbon (SOC) dynamics and the underlying mechanisms following agricultural abandonment in a subtropical karst area, southwest China. Two post-agriculture succession sequences including grassland (~10 years), shrubland (~29 years), secondary forest (~59 years) and primary forest with cropland as reference were select...
The rubber boom across much of Southeast Asia has led to environmental destruction, and the resultant crash in the price of rubber has destabilised livelihoods. We investigated the necessary factors required to enable a transition towards a more sustainable model for rubber cultivation in Southwest China (i.e. the 'greening' of rubber cultivation), using a framework for the integrative study of...
We investigated the knowledge level and risk factors for pediatric unintentional burns in rural Southwest China with an aim to provide basic evidence for the prevention strategies. A stratified sampling method was used to recruit 1842 rural children from 9 schools. Self-reported burns during the past 12 months and relevant risk factors were collected by questionnaires. The burn incidence of all...
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