自然体育视域下健康生活方式的研究     

曾顺旭 《当代体育科技》2021,(7):189-191

为了解自然体育是如何成为人们的一种健康生活方式。该文采用文献资料法和逻辑推理法对不健康的生活方式进行了分析,得出健康的隐患包括环境恶化、营养过剩、运动量不合理3个方面,表明生活方式与健康的关系十分密切。分析了“自然体育”对人们健康生活方式的作用和价值,认为自然体育运动正在成为人们的一种健康的生活方式。  相似文献   

A hybrid approach to managing job offers and candidates     

Rémy Kessler  Nicolas Béchet  Mathieu Roche  Juan-Manuel Torres-Moreno  Marc El-Bèze 《Information processing & management》2012

The evolution of the job market has resulted in traditional methods of recruitment becoming insufficient. As it is now necessary to handle volumes of information (mostly in the form of free text) that are impossible to process manually, an analysis and assisted categorization are essential to address this issue. In this paper, we present a combination of the E-Gen and Cortex systems. E-Gen aims to perform analysis and categorization of job offers together with the responses given by the candidates. E-Gen system strategy is based on vectorial and probabilistic models to solve the problem of profiling applications according to a specific job offer. Cortex is a statistical automatic summarization system. In this work, E-Gen uses Cortex as a powerful filter to eliminate irrelevant information contained in candidate answers. Our main objective is to develop a system to assist a recruitment consultant and the results obtained by the proposed combination surpass those of E-Gen in standalone mode on this task.  相似文献   

基于DEA方法的省级自然科学基金效率实证研究     

李新杰  李雄诒  孙泽厚 《软科学》2012,26(6):78-82

选取2007～2008年我国16个省自然科学基金的数据作为研究样本,从省级自然科学基金成果对促进地方知识发展、创新能力提升以及人才培育等三个方面出发,构建了省级自然科学基金效率评价指标体系,并运用DEA模型对16个省级自然科学基金相对效率进行评价。结果显示:6个省的自然科学基金DEA评价无效,其中有4个省的自然科学基金纯技术效率和规模效率同时无效。通过投影分析,发现造成省级自然科学基金低效主要原因是现有投入规模下科技产出严重不足。最后针对研究结论,提出相应的对策建议。  相似文献   

基于净初级生产力的海南天然橡胶产胶潜力研究   总被引：2，自引：0，他引：2  

李海亮  罗微  李世池  刘海清 《资源科学》2012,34(2):337-344

以CASA模型为基础,建立基于MODIS数据的天然橡胶林净初级生产力遥感估算模型,利用2009年生长季（4月-12月）250m分辨率的MODIS数据和气象站点的气象数据估算了阳江农场天然橡胶的生长季净初级生产力（NPP）。并通过天然橡胶的干物质分配率计算了阳江农场天然橡胶的产胶潜力,最后以地面实际橡胶干胶产量的时间序列、空间序列与估算的天然橡胶林产胶潜力进行了相关分析。结果表明,阳江农场天然橡胶产胶潜力空间差异显著,且在时间变化上具有明显的季节性规律;产胶潜力与实际干胶产量存在明显的线性关系,表明本研究所采用的天然橡胶林净初级生产力估算模型、产胶潜力估算模型可行。2009年阳江农场全场的产胶潜力为5573t,比实际年干胶产量4572t高出22%,阳江农场干胶产量仍有很大的提升空间。  相似文献   

中国资源法律规制的演进、评价与展望     

周洪  谷树忠  姚予龙  胡咏君 《资源科学》2012,34(10):2007-2016

资源法律规制、规划规制、标准规制和指标规制构成资源规制的基本体系,其中资源法律规制是最高层次的规制,规制效力最强。本文在对资源法律规制的规制主体、规制内容和规制强度的演进历程进行梳理的基础上,将建国以来中国资源法律规制分为四个阶段：起源阶段（1949年-1966年）、停滞阶段（1967年-1976年）、起步阶段（1977年-2000年）和拓展提升阶段（2000年-）。研究认为,目前中国的资源法律规制存在诸多问题：资源法律规制体系尚未建立,缺乏系统性的自然资源基本法;规制主体繁多,但是缺乏独立的规制主体;惩罚性手段多,奖励性手段少;规制内容不全面、不协调,存在规制交叉、重叠和冲突的情况;规制结果考核有效性不足,缺乏对规制者的规制。未来,中国应从完善资源法律体系、明确资源法律规制主体及其责任、提高资源法律规制的强度、实现资源规制手段的多元化等方面建立健全中国资源法律规制体系。  相似文献   

Clinical implications of exercise immunology     

David C. Nieman 《运动与健康科学(英文)》2012,1(1):12-17

Maintaining leanness and a physically active lifestyle during adulthood reduces systemic inflammation, an underlying factor in multiple chronic diseases. The anti-inflammatory influence of near-daily physical activity in lowering C-reactive protein, total blood leukocytes, interleukin-6, and other inflammatory cytokines may play a key role in lowering risk of cardiovascular disease, certain types of cancer, type 2 diabetes, sarcopenia, and dementia. Moderate exercise training causes favorable perturbations in immunity and a reduction in incidence of upper respiratory tract infection (URTI). During each bout of moderate exercise, an enhanced recirculation of immunoglobulins, neutrophils, and natural killer cells occurs that persists for up to 3-h post-exercise. This exercise-induced surge in immune cells from the innate immune system is transient but improves overall surveillance against pathogens. As moderate exercise continues on a near-daily basis for 12–15 weeks, the number of symptoms days with URTI is decreased 25%–50% compared to randomized sedentary controls. Epidemiologic and animal studies support this inverse relationship between URTI risk and increased physical activity.  相似文献   

“物极必反”、“物极必变(异)”辨谬——“以空为实”的诡论     

黄展骥 《毕节学院学报》2010,28(9)

"物极必反" (P)是我国传统哲学中卓越的经典命题,影响深远.然而,由于P暗中用"反"之前一阶段来定义"极",因此犹如"乌鸦是黑色的"(Q)命题一样,是隐蔽的重言真句,进而犯"以空为实"谬误,即表面有经验内容,甚至"无所不包",但实质几近"空无所指".至于"质量互变(物极必变异)" (R)比P更为笼统,也有类似P的谬误.  相似文献   

基于ANSYS的高速包装机的椭圆齿轮模态分析   总被引：1，自引：1，他引：0  

黄志东  韩杨 《辽宁科技学院学报》2010,12(3):29-30,46

采用有限元法,建立了椭圆齿轮的动力学模型,通过有限元分析软件ANSYS对椭圆齿轮进行模态分析,得到了椭圆齿轮的前六阶固有频率和对应振型。该方法和所得结果为动态设计提供了参考,同时也为椭圆齿轮系统的动态响应计算和分析奠定了基础。  相似文献   

Using the Arts to Raise Awareness and Communicate Environmental Information in the Extension Context     

David J. Curtis 《The Journal of Agricultural Education and Extension》2013,19(2):181-194

Abstract

Extension services face an increasing challenge as the state of Australia's environment declines. It is, therefore, opportune to explore some innovations in the way extension is traditionally delivered. This paper introduces the concept of the visual and performing arts being useful in extension of natural resources management issues such as land water degradation, biodiversity conservation, catchment protection and vegetation management. The paper surveys how the arts and science have met historically and contemporaneously, focusing on examples from ecology such as wildlife and botanical art. It then examines how extension practitioners view the arts, through an analysis of interviews with 26 extensionists working in natural resources management. Extensionists identified five areas that the arts might be utilized to help increase understanding and knowledge of natural resources issues: improving presentations; improving public campaigns and general awareness-raising; aiding facilitation and community development; reinforcing values and beliefs; and helping build a culture that is environmentally sustainable. Despite the potential value of arts in extension, few practitioners in extension use the arts to any great extent to assist in the communication of their messages. The research points to new opportunities for natural resources agencies and conservation organizations to improve their reach into the community. By building a relationship with the arts community they will be able to improve the efficacy of their extension.  相似文献   

邓小平管理哲学对唯物辩证法的运用及其重要意义     

刘笃成  郑文杰 《乐山师范学院学报》2013,(7):96-101

邓小平坚持运用唯物辩证法实事求是地分析中国社会主义初级阶段的基本国情、基本矛盾和主要矛盾,提出了一系列运用唯物辩证法解决我国社会主义国家管理和现代化建设过程中的重大问题的方法：即通过改革来解决社会主义社会的基本矛盾和主要矛盾;既坚持对外开放,又坚持独立自主、自力更生的方针＂;让一部分人、一部分地区先富起来＂,最终实现共同富裕＂;两个文明一起抓＂＂、和平统一、一国两制＂实现祖国统一的创造性构想等。这是马克思主义中国化的重大成果,是对马克思主义关于社会主义建设理论的丰富和发展,不仅指导我国的改革开放和现代化建设取得了举世瞩目的伟大成就,而且对我国今后的改革开放和现代化建设还仍然有重要的指导意义。  相似文献