藏成药七十味珍珠丸中矿物质元素在体内蓄积性水平研究   总被引：1，自引：0，他引：1  

李天才  索有瑞 《中国科学院研究生院学报》2003,20(3):348-352

名贵藏成药七十味珍珠丸是传统藏药的典型代表,疗效显著.其中矿物类药的大量运用为现代医学科学不可理喻,给传统藏医药学的健康发展带来了困惑。以金诃七十味珍珠丸为研究材料,以Wistar大白鼠为试验对象,用等离子体发射光谱(ICP AES)和氢化物原子吸收光谱(HAAS)等分析仪器,测定了对照组和给药组实验动物在连续 1 8周试验期间心、肝、肾等组织器官中的矿物质元素含量水平,阐述金诃七十味珍珠丸中矿物质元素在动物主要组织器官中的长期蓄积性及其对生物机体的毒性效应  相似文献   

中国农业:报酬递增与"剩余之谜"     

刘金山 《未来与发展》2007,(6):25-28

本文在综述我国农业增长"剩余之谜"研究基础上,从报酬递增角度考察农业发展,分析我国农业报酬递增的源泉,探讨农业发展中的逆报酬递增行为,最后提出实现农业报酬递增的政策含义。  相似文献   

极限组织的概念、框架与网络化生存     

卢致杰  覃正 《软科学》2005,19(1):1-4,8

首先研究了组织理论在发展过程中遇到的新问题,而后运用信息技术对组织理论进行拓展,建立了网络环境下超越时间与空间限制的极限组织理论框架体系,描述了极限组织构架的“轻量级”实现方法以及“点击熵”知识的获取过程;最后分析极限组织的网络化生存战略。  相似文献   

逆变焊机中电容的应用     

邓文  万金保 《科技广场》2004,(11):76-77

本文讨论了在逆变电焊机中不同用途的电容特性及选用规则，以及预防早期失效的对策。  相似文献   

Mixed control of uncertain jumping time-delay systems     

Magdi S. Mahmoud  Fouad M. AL-Sunni  Yan Shi   《Journal of The Franklin Institute》2008,345(5):536-552

In this paper, we investigate a class of linear continuous-time systems with Markovian jump parameters. An integral part of the system dynamics is a delayed state with time-varying and bounded delays. The jumping parameters are modeled as a continuous-time, discrete-state Markov process. Employing norm-bounded parametric uncertainties and utilizing the second-method of Lyapunov, we examine the problem of designing a mixed controller which minimizes a quadratic performance measure while satisfying a prescribed -norm bound on the closed-loop system. It is established that sufficient conditions for the existence of the mixed controller and the associated performance upper bound could be cast in the form of linear matrix inequalities.  相似文献   

近10年中医外治法治疗支气管哮喘研究概况     

韦思尊  苏齐鉴  周继红  冯洁 《大众科技》2016,(7)

支气管哮喘是临床常见的呼吸系统疾病之一,其病死率高,严重影响病人的生活质量,给个人和社会造成了巨大的疾病负担。西医对于支气管哮喘的治疗取得了较大的进展,但治疗费用较高,长期应用容易引起多种并发症。相比之下,中医外治法在治疗支气管哮喘方面具有一定的优势。文章旨在就近10年来中医外治法治疗支气管哮喘的研究进展作一综述。  相似文献   

Three Cases of Lead Toxicity Associated with Consumption of Ayurvedic Medicines     

Raviraja A  Vishal Babu GN  Sehgal A  Saper RB  Jayawardene I  Amarasiriwardena CJ  Venkatesh T 《Indian journal of clinical biochemistry : IJCB》2010,25(3):326-329

Ayurveda is a traditional form of medicine used by majority of the Indians. Here we report three cases of lead toxicity, following intake of Ayurvedic medicines. Three patients presented with blood lead levels (BLLs) of 122.4, 115 and 42.8 μg/dl respectively at the time of hospitalization. The first case was chelated with D- penicillamine, the second with calcium disodium ethylene diamino tetra acetate (EDTA) and the third with environmental intervention and education. Associated Ayurvedic products were collected from patients and analyzed for metallic concentration. Cessation of Ayurvedic medication along with chelation, nutritional intervention and education, reduced the BLL to 27.4 μg/dl in the first case after 1 year, 21.1 μg/dl after 9 months in the second and 18.2 μg/dl after 6 months in the third case.  相似文献   

角色扮演法在教学中的应用   总被引：4，自引：0，他引：4  

宋锁英 《安阳工学院学报》2005,(6):159-160

现在教育强调,在向学生传授知识的同时,不仅要注意学生智能的培养和发展,还要注意实践能力的培养.木文着重强调角色扮演在内科护理教学(内护)中对提高护生临床实践能力具有极其重要的作用.  相似文献   

The multi-paradigmatic character of contemporary educational action research: a promising perspective or an underlying threat?     

Eleni Katsarou 《Educational Action Research》2017,25(5):673-686

From the very first moment action research started to be used in the social research field until now, it has presented significant variations. Action research looks like a mosaic of theoretical and methodological approaches, named differently from time to time and/or from place to place: for example, practitioner inquiry, practitioner research, teacher research, participatory action research, and so forth. The basic aims of this article are to find the reasons for this and to discuss the implications of the phenomenon. Starting with the first issue, we could ask ourselves: why do we today find so many and considerable variations in action research approaches in the literature? The evident reason is because action research draws upon many theoretical paradigms that – in some circumstances – are not only different, but also contradict each other. Hammersley states characteristically that action research draws upon positivism, pragmatism, hermeneutics, critical theory and postmodernism! After such claims, we can easily wonder: how can such a multi-paradigmatic approach compose cohesive methodological proposals? We can also pose another crucial question: although we can easily understand that this multi-paradigmatic nature is a real advantage which gives action research a pluralistic essence, is it really ‘a strong indicator of the power of action research to reinvent itself according to local needs’ as Somekh stated, or might it at the same time conceal serious risks?  相似文献   

College/University Counseling Centers Supporting Study Away: Challenges and Opportunities     

Charles C. Morse  Janet Dee Spoltore  Paul Galvinhill 《Journal of College Student Psychotherapy》2017,31(4):325-335

Research points to significant numbers of students on college campuses experiencing mental health distress and an ever increasing number of college students who are choosing to make an off-campus educational experience a part of their college careers. When we consider both of these trends together, it is quite apparent that a significant number of students with mental health concerns will spend periods of time studying away from campus, with converging concerns among college mental health and study away professionals about how to best support these students. This article seeks to outline both challenges and opportunities inherent in the collaboration between campus professionals in supporting students with mental health issues before and during their study away experiences.  相似文献