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1.
广州市农业可持续发展问题与对策 总被引:3,自引:0,他引:3
近20年来,广州农业发展很快,粮食、蔬菜、水果和肉、蛋、奶等产量迅速提高,农业结构和基础设施较好,但是也面临着耕地不断减少,农业环境污染,服务体系滞后,农业生产不适应现代化水平要求等,为此,必须推进农村土地股份制,发展可持续农业科技,改善农业生态环境等对策。 相似文献
2.
目的:对传染病医院住院部感染管理的现状进行探讨分析,并研究相应的对策。方法:根据卫生部颁布的《医院感染诊断标准》对我院患者进行调查统计,重点对2009、2010、2011年的住院患者的感染率以及患者感染部位进行回顾性统计分析。结果:2009、2010、2011年医院感染率分别为3.07%、2.94%、3.05%。且这三年中,患者感染部位以呼吸道与腹腔为主。结论:通过切实加强传染病医院的医院感染的管理、监督以及控制,有效阻断了医院的院内所存在与潜在的传染源,从而有效降低了患者因医源性感染而患病的几率。 相似文献
3.
随着人们环境意识的不断觉醒,环境污染问题日益受到关注。环境保护和坚持可持续发展战略已成为我国的基本国策,环境工程管理也正是基于这样的观念开展工作的。但环境污染治理是一项长期的工程,需要全社会的共同努力才能从根本上得到解决。鉴于环境工程管理中存在的问题,本文探讨了环境工程管理的对策。 相似文献
4.
固体废物的污染防治与综合利用 总被引:1,自引:0,他引:1
在固、液、气3种形态的污染(固体污染、水污染、大气污染)中,固体废物的污染问题较之大气、水污染是最后引起人们注意的,也是最少得到人们重视的污染问题。从固体废物的定义和来源入手,简要分析固体废物的污染防治与综合利用,以期进一步提高公众的环保意识。 相似文献
5.
江西桃红岭梅花鹿国家级自然保护区是梅花鹿华南亚种最大的野生种群分布区,也是目前全国唯一以保护梅花鹿华南亚种及其生态系统为主的保护区,本文分析了该保护区梅花鹿的生存与保护现状、存在的问题,并提出了具体的保护管理对策. 相似文献
6.
在科学发展观的具体实践中,改善民生可以说是重中之重。作为一名档案工作者,怎样在工作中利用民生档案,服务于社会,服务于人民,并努力为通榆县"绿色能源名城、生态旅游名城、书法文化名城"的建设发挥积极的促进作用,是一个需要探索的课题。从通榆县民生档案工作的实际情况看,与民生档案工作的系统化、规范化、科学化管理和百姓的期望值尚有一定差距,整个态势并不令人乐观。 相似文献
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本文分析了高中生物实验教学的现况,指出要精减验证性实验的数量,增加探究性实验的比例,应引出问题,激发学生的学习兴趣,要重构实验考评体系等加强高中生物实验教学的对策。 相似文献
8.
改革开放以来,我国社会各方面事业都取得了举世瞩目的成就。近年来,随着工业化社会的到来,我国甚至全球都面临着严重的环境污染和植被破坏等问题。森林覆盖率的下降是环境问题最突出的表现,近年来由于社会发展的需要,大量森林被砍伐,而退耕还林的数量又极其有限,因此,解决森林的使用和养护成为亟待解决的问题。本文将针对森林管理经营的现状和相应的解决对策进行分析探讨,旨在促进我国森林覆盖率的增加,保护人类赖以生存的环境,社会主义的发展绝不以牺牲环境为代价。 相似文献
9.
目前在医德教育存在着医学生医德观念淡漠、学校教育内容单一、医德教育效果不理想等问题。本文从医学生医德信念的培养,加强师资队伍建设,教师改革教学方式,更新教学内容,学校改善校园文化环境,完善"校内校外一体"的医德教育体系等方面提出有效改善医德教育困境的对策。 相似文献
10.
王沪渝 《现代生物医学进展》2008,8(9):1795-1796,1782
目的:我国目前医院临床科室护理人员配置普遍不足和护理人才的流失的问题日益突出,尤其是部队医院,由于受到军队编制调整的影响,护理人力资源的不足和人员流失更加严重。如何对护理人力资源进行合理配置以及如何提高现有护理人力资源利用率,已成为当前护理管理者急需解决的问题。护理人力资源与护理质量的水平有密切的关联,通过对护理人力资源情况的了解而相应地采取切实可行的对策。方法:调查某医院某临床科室病区床位数与护士之比,护理人员结构等。结果:人力资源配置不足,人力资源结构不合理,护理人员流失是护理人力资源中存在的主要问题。结论:针对目前状况,从人力资源管理角度出发进行对策思考:尽可能达到配置标准;重视人员招聘环节;提高护理工作的地位,激发从业人员的自豪感;认真进行岗位和人员能力特点分析,合理调配人力资源;善于利用激励和监督机制;建立后勤保障,提高员工福利;加强护理教育和人员培训等。 相似文献
11.
Waste information is necessary for proper management planning. However, data on waste generation and management are sometimes not reliable enough, do not exist or are not useful for the sector. This is due to the high number of waste types and flows, and actors (producers, managers and administrations), which make data collection and treatment difficult. Furthermore, data loss occurs because some waste flows have economic value and return to the second-hand markets without monitoring.The development of a waste information system for a region is more than just about establishing a routine data collection on waste. It is a way to support the challenges of decision-making on waste management. These challenges range from strategic issues of waste management in the national government to the basic challenges of running local governments.In the Cantabrian region, three indicator sets were defined to constitute the waste information system: (a) a Basic Indicator Set, which provides an overview of the status of the generation and management of the main waste streams, giving a national and international comparative analysis of the situation; (b) a Specific Indicator Set, which monitors the objectives of the different waste policies, and (c) a Transverse Indicator Set, which analyses the influence of different economic and social variables on the generation of specific waste streams.The Waste Information System of the Cantabrian Region has been created using a specific methodology for developing indicator sets with multiple objectives. This methodology consists of seven steps: (i) the synthesis, selection of the indicators sets; (ii) analysis of the system under study and data sources; (iii) evaluation of the indicators proposed; (iv) application and interpretation; (v) public review, dissemination and updating protocol; (vi) improvement of indicators sets using SWOT analysis; and (vii) aggregation of all indicators in an aggregated index.These indicator sets with a total of 27 indicators allow tracking the evolution of generation and management of waste streams and the achievement of the policy objectives, establishing a data record, evaluating the data and sources of data, monitoring proposed action and its effectiveness summarizing large amounts of data on waste in order to spread it to the public and finally, aggregate all information in a single index that allows the evaluation of the evolution of all waste sectors in time. 相似文献
12.
中药天麻的研究现状 总被引:13,自引:0,他引:13
徐玉娥 《中国野生植物资源》2003,22(4):12-14
天麻是我国传统名贵中草药,近年来的研究表明,天麻对中枢神经系统有镇静止痛作用,能增强心肌收缩力,增加冠脉流量,降低外周血压,抗缺血缺氧,并能增强免疫功能.天麻能提高SOD抗氧化酶的活力,消除氧自由基。天麻无任何毒副作用,可反复给药,是一种药理作用广泛的中药材。 相似文献
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14.
骨性关节炎(OA)是临床上常见的关节疾病之一,严重影响患者的关节功能和生活质量,由多种因素相互作用致病,多发于老年人,但是具体的发病原因尚未明确,因此给临床治疗造成障碍。目前研究认为白细胞介素在OA的发生及发展过程中起主要作用,因此可以将白细胞介素作为治疗OA的靶点,为治疗OA提供新思路。本文主要就不同种类白细胞介素在OA的发病机制中的作用进行综述。 相似文献
15.
Solid waste management is a worldwide problem and it is becoming more and more complicated day by day due to rise in population, industrialization and changes in our life style. Transformation of industrial sludges into vermicompost is of double interest: on the one hand, a waste is converted into value added product, and, on the other, it controls a pollutant that is a consequence of increasing industrialization. Garden waste, kitchen waste and cow dung were subjected to recycle through vermicomposting by using the epigeic earthworm Eisenia fetida under field conditions. The pH, moisture content, total organic carbon, humus, nitrogen, phosphorous and potassium in vermicompost was analysed. It was found that moisture content, total organic carbon, humus, nitrogen, phosphorous and potassium was high in cow dung, followed by kitchen waste and garden waste. This study clearly indicates that vermicomposting of garden waste, kitchen waste and cow dung can not only produce a value added produce (vermicomposting) but at the same time reduce the quantity of waste. 相似文献
16.
Solid waste management is a serious ecological problem in Saudi Arabia due to rapid industrialization, population growth and urbanization. Recycling and sorting are in their infancy in Saudi Arabia and huge amounts of mixed household and industrial wastes are still dumped without any pre-treatment. Solid waste management techniques such as incineration, pyrolysis and gasification have high investment costs. Composting and vermicomposting of solid organic waste have been considered as an economically viable and sustainable waste management technologies. However, wastes often contain pollutants, such as heavy metals that are toxic to decomposer micro-organisms. Thus, heavy metals are a challenge for the successful biological treatments. Waste may also contain a mixture of organic pollutants that certain microbes, such as micro-algae are known to degrade. The present review paper focuses on understanding the role of vermicomposting as a management tool in mitigating solid organic wastes. It is noteworthy to mention that the microbes also play a pivotal role in the degradation process, wherein the enzymes secreted during the process aid in decomposition of complex molecules into simpler compounds. Also, the extracellular polymeric substance secreted by the earthworm under metal stress serves a source of nutrient for the bacteria to flourish. Henceforth the goal of discussion in present review shows the way forward in using vermicomposting as a novel approach in dealing with solid organic waste. 相似文献
17.
《Médecine Nucléaire》2017,41(4):291-298
Incidental discovery of pulmonary nodules is a frequent finding on a CT or a PET-CT examination. When found, those nodules should be classified as (1) certainly benign, (2) certainly malignant or (3) undetermined. The purpose of this paper is to present a diagnostic approach allowing such classification. 相似文献
18.
工业固体废弃物的急性生物毒性研究 总被引:7,自引:0,他引:7
工业固体废弃物的急性生物毒性研究谢思琴,顾宗濂,周德智(中国科学院南京土壤研究所,南京210008)Acutebiotoxicityofindustrialsolidwastes¥.XieSiqin;GuZonglianandZhouDezhi(In... 相似文献
19.
Although mostly mineral, municipal solid waste incineration (MSWI) bottom ashes also contain organic matter that may support heterogeneous microbial activities. The objective of the present study was to evaluate the potential influence of such activities on the physico-chemical properties of the waste with respect to the release of contaminants into water. Fresh and aged MSWI bottom ashes originating from the same incineration plant were studied. Respirometry assays were carried out under various experimental conditions, where the microbial flora was quantitatively and qualitatively analyzed before and after the incubations. The leaching behavior of the waste was studied before and after the incubations to determine the effects of microbial activities.Relatively high O2 consumption and CO2 production were observed during incubation, particularly with the fresh waste which contained more organic matter and was less carbonated than the aged one. Cell counts and DGGE molecular profiles indicated the presence of an abundant and diversified microbial biomass in both aged and fresh waste. Incubations resulted in a reduction of the dissolved fraction of organic carbon in the leaching tests and a modification of the leaching patterns of many metallic species (Al, Cr, Cu, Fe, Pb and Zn). This influence on the leaching behavior was particularly significant with the fresh waste. It was mostly explained by the pH decrease due to the carbonation of the bottom ash resulting from the CO2 generated by the microbial respiration. 相似文献
20.
伴随着鱼类作为科研重要材料的迅猛发展,实验用鱼类福利引起了人们的关注。本文旨在阐述国内外鱼类福利发展的历史和现状,剖析鱼类福利实施困难的因素,提供提高福利的参考对策,以期帮助科研工作者进一步地了解实验用鱼类福利,促进在实验过程中鱼类福利的发展。 相似文献