延安时期,陈云在担任中组部部长期间,充分认识到特殊历史条件下加强党的纪律建设的重要性,从而要求党员必须真心地、具体地、统一地遵守党的纪律,这些要求对于新形势下加强党的建设具有十分重要的现实意义。

延安时期,陈云在担任中组部部长期间,号召党员干部利用延安相对稳定和平的环境,抓住机遇,进行学习,并对如何建设学习型政党进行了探索。一是强调学习任务的重要性;二是突出学习内容的实用性;三是重视学习方法的科学性;四是处理复杂关系的有序性;五是发挥领导干部的模范性。

Objective To explore learning and memory abilities and changes of hippocampal neurons in mice after subchronic exposure to perfluorooctane sulphonate(PFOS).Methods ICR mice were randomly divided into four groups,eight in each and intraperitoneally exposed to PFOS for six consecutive weeks at the doses of 0,5,20 and 40 mg/kg body weight respectively.Learning and memory ability of mice were assayed by Morris water maze.Neuropathology by HE staining and statistical analysis for morphology in hippocampus were carried out.Results In Morris water maze test,the escape latency in 20 mg/kg PFOS group was significantly increased compared with the control group in the first training day(P0.05).While,in the first,second and fifth day,the escape latency all significantly delayed after subchronic exposure to PFOS in the dose of 40 mg/kg compared with the control(P0.05).Hippocampal neurons in CA1 region showed smaller cell body with dark stained nucleus in the higher dose exposure group.In comparison with the control group,neuron density declined both in CA1 and CA3 region,while darkness degree of cell nuclear significantly increased in CA1 of the higher dose exposure group.Conclusion Subchronic PFOS exposure may reduce learning and memory ability,which is relative to neural damage and loss of hippocampal neurons in mice.

The article emphasizes a set of reference points for academic standards and quality is the foundation of an effective quality assurance system.In the process of discipline construction and reform in China,a set of reference points for academic standards and quality should be developed timely.Furthermore,internal quality assurance carried out by higher education institutions should be promoted.

<正>根据世界卫生组织的统计,中国是全球22个结核病流行严重的国家之一,同时也是全球27个耐多药结核病流行严重的国家之一。目前我国结核病年发病人数约为130万,占全球发病的14.3%,位居全球第2位,其中80%在农村。提高公众结核病的认知意识,对控制结核病流行至关重要,

Objectives To analyze the sanitary condition of drinking water in some rural areas of Nanchang and provide scientific evidence for preventive measures.Methods Water samples were collected both in dry season and wet season in 2009,and were monitored,evaluated and analyzed according to standard methods.Results The unqualitied rate of total coliforms(49.7%),thermotolerant coliforms(45.3%) and bacteria count(8.4%) were high.Conclusions There are many problems on the quality of drinking water in rural areas.Microbial contamination is especially serious because of ineffective disinfection.