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1.
介绍硝化作用对氯胺测定和消失的影响,以及由此产生的余氯测定误差。  相似文献   

2.
介绍硝化作用和CT值计算、输配水系统内的硝化作用以及氯胺在保存期内的稳定性。  相似文献   

3.
长江原水排泥水处理的目的是将大量悬浮固体物质经过收集、浓缩、脱水等工艺处理,使浓缩池上清液和污泥脱水后的分离水水质达到国家《污水综合排放标准》的二级标准, 即 SS≤150 mg/L,泥饼含固率达到40%以上。排泥水处理工程实现了生产工艺废水的零排放, 提高了水资源的利用效率,有利于城市生态环境的可持续发展。  相似文献   

4.
教师的素质和能力是开展ESP教学的保障。合格的ESP教师应具备丰富的学科知识。本文通过对PCK与ESP教师发展的关系,归纳出ESP教师的PCK构成因素,并提出教师的PCK发展途径。  相似文献   

5.
目的:筛选出与多囊卵巢综合症(PCOS)相关的特异表达基因,以期阐明PCOS的发病机制.方法:将本实验室自主建立的PCOS来源和非PCOS来源的人胚胎干细胞(hESCs)系定向分化成脂肪细胞,应用北京博奥生物有限公司的晶芯人类全基因组寡核苷酸微阵列芯片检测不同来源脂肪细胞中的差异基因.结果:PCOS来源和非PCOS来源的人胚胎干细胞均成功诱导分化成了脂肪细胞,共筛选出2种脂肪细胞中的差异表达基因153个,其中PCOS来源脂肪细胞上调表达91个,下调表达62个.挑选上调表达的6个基因进行Real-time PCR验证,与基因芯片检测结果一致.结论:PCOS和非PCOS来源hESCs分化的脂肪细胞在基因表达上有差异,这些差异基因很多涉及糖、脂代谢,并与甾体激素相关,进一步研究后有部分基因可作为PCOS发生、发展的候选基因.  相似文献   

6.
主要探讨问题学习法(PBL)结合循证医学(EBM)在人体解剖学教学中的应用效果。方法:将西安培华学院医学院2017级护理专业两个合班学生随机分为78人的试验组(PBL+EBM)组和82人的对照组(PBL组)。结果:试验组学生在参加校级课题、大学生创新创业项目课题、提高文献信息检索训练、社会调查评价利用能力、了解过循证医学、PBL等方面均优于对照组学生。结论:PBL+EBM教学法联合循证医学运用于解剖学教学中,通过增强学生学习以提高其分析问题解决问题的能力,能够使其更加牢固地掌握解剖学基础知识及提高护理学专业学生综合能力的各个重要环节,值得借鉴。  相似文献   

7.
本科毕业设计(论文)是体现本科生教育的重要环节,也是学生科研能力和专业技能的一次初检验。本文剖析了影响毕业毕业设计(论文)质量水平相关因素,提出了一系列质量监控措施,以此提高毕业设计(论文)质量。  相似文献   

8.
当下,对于教材内阅读材料的研究很少关注阅读材料在重新编写的过程中所发生的变化以及这些变化的深层原因。通过比较中学英语课本——人教社出版的《新目标》(2012)与其原版本David Nunan(2005)的阅读材料,试图找出《新目标》(2012)阅读材料中存在的问题及其造成因,进而深入探讨教材改编的理据与原则。  相似文献   

9.
介绍用四甲基联苯胺分光光度法测定水中余氯的原理、氯标准曲线的绘制、样品测试,该方法的结果与讨论。  相似文献   

10.
为迎接省委中心组学习督查,按照中共永州市委统一安排,市委中心组学习督查组,于2013年5月15日—31日赴全市各级党委(党组)对中心组学习情况、十八大精神的学习宣传贯彻情况和学习型党组织建设情况开展专项督查。笔者对此次督查进行思考研究,发现全市各级党委(党组)学习特点突出、亮点纷呈,但同时也存在一些问题,需要进一步采取措施完善。  相似文献   

11.
《科学发展》2013,(11):61-72
上海教育国际化的核心内涵是通过教育活动国际化、教育者与受教育者的国际化、教学机构国际化以及国际维度与观念融入过程的国际化等途径,推动上海整体教育水平的提高,吸引和培养高素质的国际型人才,服务于上海经济社会可持续发展的大局。上海教育国际化的配套政策要围绕优质教育资源的引入和输出展开:制定“引智”政策,以吸引优秀海外专家、学者,扩大开放现行科研体系,引入教育国际化高端资源;制定教学计划与课程国际化建设、“留学上海”系列服务、优质教育资源引进、“国际化品牌项目”支持、全社会共同参与、服务体系信息化等政策。建立以政府各相关部门为主体的管理体系、以高校及其他办学机构为主体的教学体系及以企业、各类社会组织及市民为主体的社会服务体系。  相似文献   

12.
In 1994, South Africans embarked on a project to create new meanings of citizenship in order to transcend the disenfranchisement and divisions created by apartheid. This article examines the context in which new forms of citizenship are evolving in South Africa and how South African citizens use the media to give meaning to concepts such as “an active public sphere,” “civic agency” and “participatory politics.” The objective of the research is to provide information about the way in which the media contribute to the quality of democracy in South Africa through mediating citizenship in a way that improves prospects for citizens to exert influence over public decisions. As has been the case in other post-authoritarian and postcolonial settings, the continuation of existing unequal relationships to government persists even when new democratic spaces have opened up. This article interrogates the assumption that media are central to citizens’ political and civic engagements in a transitional society marked by persisting inequalities. This interrogation draws on empirical research with citizens to investigate the question that the media are central to constructions of citizenship and participation and engagement with democratic processes. Our research finds that young South Africans interviewed are disengaged from politics and find that the media does not speak to or connect with their everyday lives. They view the state on both national and local levels as not being prepared to listen to their experiences, ideas or conditions of life. While the respondents trust the media as credible institutions, they do not experience the media as being relevant to their lives. The perceived disinterest of the state and the lack of relevance of the media, work together to create a sense of powerlessness and inability to influence policy-making among the young people interviewed. For the media to intervene in this state of affairs, it would have to create more opportunities for young people to participate directly in meaning production through the media, starting by listening more closely to their experiences in order to respond to their concerns in a relevant way.  相似文献   

13.
Derrida’s account of forgiveness appears to oppose politics to ethics, challenging political reconciliation in the name of unconditional forgiveness. Yet at the same time Derrida seems to sacrifice ethics to politics by advancing but refusing to take the side of what he calls an “indecent objection” to reconciliation. This essay seeks to account for Derrida’s strategy and to think through some of the consequences of Derrida’s emphasis on the “impossibility” of forgiveness.  相似文献   

14.
ABSTRACT

Experimental vignettes were used to investigate attributions relating to child sexual abuse with a focus on the degree of blame allocated to the family and to society, factors thought to be particularly relevant in a collectivist society. One hundred and sixty-two undergraduates in Singapore evaluated media reports describing a case of child sexual abuse. A 2 x 2 x 2 between-subjects design manipulated victim sex, perpetrator sex, and victim–perpetrator relationship. Participants rated the vignettes on degree of blame and prevention potential and rated the abusiveness of the case. Individualism and collectivism attitudes of the participants were also measured. While the highest blame ratings were attributed to perpetrators, significantly more blame was attributed to the family and to society than to the victim. The demonstration of the present attributions of blame to family and to society is a timely finding given recent recommendations to broaden approaches to child abuse prevention by moving away from a reliance on school based child protection programs, which leave the onus on the child to prevent and report abuse, toward a public health approach, which is particularly inclusive of parent and community education approaches . Allocation of some blame to victims, in spite of their status as children, while not a unique finding in victimology research, emphasizes the challenges still to be faced in encouraging the reporting of child sexual abuse.  相似文献   

15.
Earlier work on the preparation of student teachers to deal with child protection concerns had indicated that initial teacher training (ITT) providers were often struggling to determine what to include on the subject and who should provide the input, as well as coping with the difficulty of trying to fit it into an overfull curriculum. In an attempt to support this work, the National Society for the Prevention of Cruelty to Children (NSPCC) developed a course for this group of students. Although an evaluation indicated the need for the materials to be redrafted, the views of both those involved in the exercise and a subsequent survey of ITT providers not only contributed to the redraft but also to the debate around the most effective approach to training professionals to protect children and young people. Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   

16.
The insights from one state illustrate the challenges of working to shape public will to favor support for out-of-school learning opportunities for youth ages nine to fifteen. With the leadership of the Frameworks Institute, local and national research and refraining concepts were used to develop a strategy to help advocates communicate the value of these learning opportunities in ways the public is less likely to dismiss out of hand. Messages reinforcing the developmental need to practice skills using the illustration of brain architecture and emphasizing the important role of community contribution on future leadership proved to be important aspects of the communication strategy.  相似文献   

17.
The end of displacement is a main goal of international peacebuilding strategies, with increasing financial and human resources committed to it. Nevertheless, protracted internal displacement remains unabated, necessitating a review of the responses provided thus far. Durable solutions to internal displacement require a safe, permanent and secure place to settle, which puts security of tenure at the centre of any sustainable option. This article emphasizes the limited understanding of the factors that contribute to secure tenure as one of the main flaws in a predominantly legal approach to the right to restitution and the right to adequate housing in responses to internal displacement. It calls for the design of contextualized and inclusive strategies to align the de jure, de facto and perception dimensions of tenure security to support the sustainable settlement of internally displaced persons as well as the construction of peace.  相似文献   

18.
This paper discusses the barriers encountered in undertaking an oral history project with survivors of a total institution for 'mental defectives' in the province of Alberta, Canada. Powerful social actors were able to bar access to survivors through legal guardianship orders, and to make access to the institution and its grounds and to publicly archived materials quite prohibitive to the researcher. In addition to overt efforts on the part of powerful social actors to block the project, concerns about the potential to discredit survivor narratives led to changes in the research design. Specifically, research and literature about the 'acquiescence' of intellectuals with intellectual impairments led the researcher to broaden the sources for this history as a preemptive strategy. Despite these barriers, survivors of the institution provided a rich and powerful testimony to the brutality of institutionalization, and provide us with an emancipatory history from the perspectives of those most oppressed by disability policies and practices.  相似文献   

19.
20.
The present article delineates the state of health and socioeconomic situation of migrants and refugees in Sweden. Special attention is given to refugees. Migrants appear to have more extensive health problems and a shorter longevity span than native Swedes. The refugees constitute an especially exposed group of migrants. Experiences in the home country that relate to organised violence is a specific problem for this group. It has been estimated that 20 to 25 per cent of all adult refugees who have arrived to Sweden during the recent years have experienced torture in their native countries. Swedish migrant and refugee policy operates according to a model of decentralisation, aiming to avoid ethnic segregation in the big city areas. However, the integration policy seems, in many instances, to have had a negative affect on the situation of the refugees. During the period of time, in which the refugees wait for a residence permit, they are not permitted to work. The long period of forced inactivity—in some instances up to a couple of years—seems frequently to have aggravated the health of the refugees. In addition it appears to contribute to the ever increasing animosity towards them.  相似文献   

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