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91.
Sarah J. Halvorson 《The Professional geographer》2003,55(2):120-133
Water‐related diseases continue to pose major threats to children's survival and well‐being in many places in the developing world. This article develops a theoretical perspective on the ways in which children's vulnerability to water‐related disease hazard is produced within the everyday circumstances of livelihood and child care. Central to this analysis is the role that household resources play in mediating or shaping particular microenvironments of health risk. Further, the effects of local geographies of gender on how household resources are accessed and on how child care is structured are examined. Children's vulnerability is evaluated in a community in the District of Gilgit in northern Pakistan, a region presently undergoing tremendous social and economic transformation. The case study highlights household‐level response and adaptation to child health risks associated with diarrheal disease transmission and infection in this mountain environment. The case study draws from ethnographic fieldwork involving qualitative household microstudies and interviewing to elicit mothers' resource and risk‐response strategies in the context of changes in livelihood systems and household dynamics. 相似文献
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摘要：作为新兴的功能学成像方法,胰腺CT灌注成像可以定量测量血容量、血流量、毛细血管表面通透性和平均通过时间等灌注参数,进而反映胰腺局部组织病理变化而引起的血流灌注改变。目前胰腺CT灌注成像的研究主要集中在正常胰腺组织、胰腺癌、胰腺炎及胰腺神经内分泌肿瘤等方面,部分灌注参数的研究结果在不同研究中差异较大。但随着多排螺旋CT软硬件技术的发展,胰腺CT灌注成像研究有加速趋势,全面临床应用将成为可能。关键词：胰腺疾病;体层摄影术;x线计算机;CT灌注成像文章编号：l004-4140（2014）Ol-0183-09中图分类号：R814．42;R445．3文献标志码：A 相似文献
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In the context of doing research on the geography of health and health care, ‘connecting’ takes on multiple meanings. First,
there are the connections between research topics although the political and socio-economic realities of the various geographical
contexts can lead to foci on different aspects and social and geographic processes. There are then the connections between
researchers from developed and developing countries who share an interest in the geography of health and health care, who
perhaps transfer or refine research methods to look at the different contexts and even different topics. Finally, in this
context, there are the connections between researchers and the IGU Commission on Health, Environment and Development (HED)
promoted by the HED for the past eight years through its activities. This paper uses examples from the literature and the
activities of HED to illustrate these various connections. It argues that if the geography of health and health care is to
continue to develop, these three sets of connections must continue to grow and strengthen.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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SAMSUVAN Watchar YEEMIN Thamasak SUTTHACHEEP Makamas PENGSAKUN Sittiporn PUTTHAYAKOOL Juthamart THUMMASAN Monthaphat 《海洋学报(英文版)》2019,38(1):118-127
In this study, we assess coral health by detecting the severity of coral diseases and compromised health states on massive Porites. Field surveys are conducted at twenty-two sites covering the eastern, inner and western Gulf of Thailand as well as the Andaman Sea during 2010-2015. A total of nine coral diseases and signs of compromised health are observed in the waters of Thailand, consisting of pigmentation responses (pink lines, pink patches, pink spots and pink borers), white syndromes (white patches, white bands and ulcerative white spots), growth anomalies, and unusual bleaching patterns. The highest severity of all observed coral diseases and signs of compromised health are found at Ko Khang Khao in the inner Gulf of Thailand, while that observed in the Andaman Sea is relatively low. Composition of the diseases vary across the study sites. Four groups of study sites, in which there is an 80% similarity of diseases or signs of compromised health composition, are clustered and detected based on the Bray-Curtis similarity. The canonical analysis of principal coordinates reveal that most study sites in the Gulf of Thailand, especially the inner Gulf of Thailand, tend to show a high severity of the diseases. The association of disease severity and composition and the level of human impact are also detected. The study sites located near the shores and/or the areas with intensive tourism tend to have higher human impact, especially on poor water quality, which may be linked to the higher severity and composition of coral diseases and signs of compromised health in the Gulf of Thailand. Fish bites are also observed in many study sites. The severity of fish bites in the Gulf of Thailand is much lower compared to the Andaman Sea. Ko Rawi exhibits the highest severity, following by Ko Surin Nua and Ko Butang. The study sites within marine national park boundaries have a significantly higher severity of fish bites than those outside of the marine national park boundaries. This study suggests that higher coral diseases and signs of compromised health severity might be linked to anthropogenic disturbances on coral communities in the waters of Thailand. 相似文献
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病毒: 海洋生态动力学和疾病学研究的创新点 总被引：6，自引：0，他引：6
病毒在海水中的浓度为10^7～10^9个／mL，多种多样的海洋病毒几乎对所有的海洋生物都有影响，5％～40％的海洋生物是被病毒销毁的，近30％海洋蓝藻和60％游离异养菌的死亡与病毒有关。地球26％的碳循环经海洋病毒完成。病毒可以影响许多生物地球化学过程和生态学过程，包括营养物循环、颗粒大小分布和沉积率、细菌和藻类的多样性和物种分布、赤潮控制、全球气候变化和种闻基因转移。各种生物种群内和种群闻有机会充分接触，为病毒传播及变异创造了条件，使海洋系统成为极富多样性的原始病毒库，除了对海洋细菌、蓝细菌、真核藻类、浮游生物等重要海洋初级生产力和次级生产力相关的种群的感染而影响整个海洋生态系以外，病毒还导致海水养殖品种发生多种病毒性痰病，病毒生态学特征对海洋生物痰病的发生和流行起着十分关键的影响作用。虽然国际上海洋病毒研究取得了重要的研究进展，但与海洋病毒的实际作用相比，研究还只是初现端倪，学科具有广阔的发展空间。 相似文献