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排序方式: 共有543条查询结果,搜索用时 109 毫秒
61.
62.
从心身医学的角度,阐述冠状动脉硬化性心脏病的病因学,心理生物学机制及防治;对现代社区医疗卫生工作中的老年疾病的康复保健具有一定的指导意义。 相似文献
63.
通过以制备香烟烟雾水溶液(water-soluble contents of cigarette smoke,WSCCS)为阳性对照组,生理盐水为阴性对照组,观察0.1ml/lOg、0.2ml/10g、0.4ml/10g的WSCCS对小鼠的急慢性(稀释原配制溶液50倍)毒性作用.结果显示:急性中毒小鼠可出现耳部黏膜变白,竖尾,呼吸、心率加快,抽搐,惊厥甚至死亡;慢性中毒小鼠则出现体重下降、性格暴躁、大便溏稀等症状,解剖后可观察到内脏各器官肺、肝、肾、胃肠道颜色、体积等改变.由此得出香烟烟雾水溶物对小鼠各系统有较强的急性和慢性毒性作用,从而间接证明香烟对人体会产生各种可能的危害. 相似文献
64.
Ajesh George Margaret H. Vickers Lesley Wilkes Belinda Barton 《Employee Responsibilities and Rights Journal》2008,20(3):165-176
This paper shares some pertinent findings from an initial, qualitative stage of a larger, national study currently being undertaken
in Australia, exploring the support needs of parents who are working full time and caring for a child with chronic illness.
The findings presented here depict the negative impact of these parents caring responsibilities on their work life and the
increased stress they experience trying to maintain full time employment. In-depth interviews revealed how these parents had
to rearrange their working hours, use up their leave entitlements, work unsatisfactory hours, sacrifice their careers and
even change their jobs in order to balance their dual roles. In addition, the findings also highlight the negative and unsupportive
attitude that employers had towards these parents. These employment conditions were extremely stressful and frustrating for
parents affecting their physical and emotional well being. 相似文献
65.
Douglas C. A. Taylor Jessica L. Abel Jalpa A. Doshi Breanna Essoi Stephanie Korrer 《Journal of medical economics》2020,23(10):1072-1083
Abstract
Aims
To characterize a US population of patients with irritable bowel syndrome with constipation (IBS-C) or chronic idiopathic constipation (CIC) using CONTOR, a real-world longitudinal research platform that deterministically linked administrative claims data with patient-reported outcomes data among patients with these conditions. 相似文献66.
Meike Wolf 《International journal of urban and regional research》2016,40(5):958-982
How should we understand the relationship between urban environments and infectious diseases? This article addresses this question from three particular perspectives: that of the materialities of health, that of nature and that of networks. The first perspective analytically blends biological dynamics, environmental influence and social practice. The second perspective, mainly influenced by multispecies ethnographies, foregrounds the liveliness and unboundedness of cities. Finally, the third perspective analyses how health is drawn into the domain of security. The article argues that while globalization and urbanization are often discussed as having triggered the emergence and spread of pathogens, urban epidemics are not self‐evident and ‘natural' consequences of these pro‐cesses. They do not fall neatly into universal categories of space, modernity or risk; rather, they are produced and shaped by a range of social, political, biological and economic sites and scales. Accordingly, the emergence of pathogens depends on its articulation through specific analytical frameworks. This article suggests that a critical focus on how infectious diseases manifest themselves differently in different local contexts may not only provide insights into the manifold forms of urban life, but also into the multiple, complex and highly political constitution of health. 相似文献
67.
城市桥梁是城市交通体系重要组成部分,文章依据桥梁退化模式,结合桥梁病害的发展表现,提出一套简便易行、安全可靠的城市桥梁结构周期性安全监测方法,以供同行参考。 相似文献
68.
Exchange Rate Economics 总被引:1,自引:0,他引:1
John Williamson 《Open Economies Review》2009,20(1):123-146
The paper summarizes the current theory of how a floating exchange rate is determined, dividing the subject into what determines
the steady state and what determines the transition to steady state. The inadequacies of this model are examined, and an alternative
“behavioral” model, which recognizes that the foreign exchange market is populated by both fundamentalists and chartists is
presented. It is argued that the main importance of understanding the foreign exchange market for development strategy is
to permit a correct appraisal of the dangers of Dutch disease. Empirically it seems that from the standpoint of promoting
development it is preferable to have a mildly undervalued rate. The paper concludes by examining implications for exchange
rate regimes.
相似文献
John WilliamsonEmail: |
69.
70.
文章构建了旅游产业升级的就业效应测算模型,将旅游产业升级的就业效应分解为就业创造和就业破坏两个方面,并从总量、结构以及行业异质性三个角度对2000-2014年中国旅游产业升级的就业创造和破坏机制进行了研究。结果表明:(1)中国旅游产业升级总体上具有积极的就业增长效应,但由于旅游产业功能升级不足,旅游产业升级的就业创造效应主要来源于规模扩张和结构变动。(2)各行业就业增长与其效率滞后性基本呈现为正相关的关系,说明在旅游业内部存在鲍莫尔成本病问题。(3)住宿业就业创造与旅游总产出增长之间出现了此消彼长的两难困境。未来中国旅游产业升级应注重与文化产业融合,推进旅游向审美化、品质化、体验化方向发展。 相似文献