基于生态文明的鄱阳湖农村环境问题分析及污染防治对策

对鄱阳湖农村环境问题进行了调研和分析,从生态意识文明建设、生态行为文明建设、生态制度文明建设、生态产业文明建设4个方面阐述加强鄱阳湖农村环境污染防治的对策与建议,为鄱阳湖生态经济区的环境保护规划与建设提供科学决策依据.     

村庄内生秩序与农村生态社区建设

当前在我国农村由传统村落向现代社区转型时期,由传统村落内部携带而来的内生秩序,正不可避免地对农村生态社区建设施加着特有的影响.在阐述村庄内生秩序对农村生态社区建设积极影响的基础上,剖析了其制约因素,提出了村庄内生秩序与农村生态社会的和谐共进的机制构想.     

沱江流域资阳段面源污染现状及防治对策

通过实地调查和资料收集分析,研究了沱江流域资阳段面源污染的现状和成因.结果表明,滥用农业生产资料、畜禽养殖废水排放、农村生活污染以及水土流失是造成面源污染的主要原因.针对区域面源污染现状,从发展生态经济的角度提出了建设以绿色食品基地为依托的生态养殖园区和生态种植园区,推广农村沼气工程,加强环保基础设施建设等防治对策,从而保障沱江流域资阳段的水环境安全,实现该区域社会、经济、生态的可持续发展.     

农村文化与文化产业共建关系研究

在分析农村文化社会价值的基础上,分别从农村文化作为文化产业发展的品牌、资源与保障,以及动力、活力与实力2个方面入手,探讨了农村文化与文化产业的共建关系与结构特征,提出了在生态文明思路下建设社会主义新农村的战略构想.     

沼气技术在生态农村建设中的作用

在生态农村建设中,应用沼气技术不仅能够提供优质生活燃料,改善农村环境卫生和生态环境,还可推动农业结构调整,提高农产品质量,有效减少环境面源污染.     

华北地区傍水村落生活污水处理研究

农村村落由于相对较为分散,污水排放情况差异较大,污水管网建设缺乏,致使农村地区污水收集率和处理率较低,造成附近河流水体污染。本文以华北某地区傍水村落污水处理实际工程为对象,介绍了华北地区农村污水排放特征,如污水水量、水质、排放要求、污水收集方式等,并重点分析了不同生化处理技术和生态处理技术的原理和优势等。农村污水治理应根据当地污水排放特征,综合考虑财政投资、后期维护等因素,采取因地制宜、分类治理的措施。     

沈阳市县域地区三农问题现状及其对策探索

沈阳市县域地区经济上主要以农业为主.近年来各县政府高度重视农业结构调整,积极吸引外地先进技术并通过鼓励农村发展养殖业、种植业等渠道促进农民增收.但是仍然存在一些制约经济发展的因素,特别是三农问题.主要体现在农村养老医疗保险、农村基层民主建设、农村文化教育和农村基础社会设施建设方面都有待进一步加强.     

中国农村公共事业发展中的问题与对策

农村公共事业发展的滞后是影响社会主义新农村建设顺利进行的重要制约因素,加强农村公共事业的发展与建设是建设社会主义新农村的突破口.只有发展农村公共事业,才能增强农村的自我造血功能,城乡差距才有望逐步得到缩小,农村的面貌才会迎来新一轮的历史巨变.在推进新农村建设过程中,政府应结合农村的实际需要,改革原有公共事业发展机制,逐步扭转农村公共事业发展滞后的局面.     

我国农村就业中存在的问题与对策

文章对农业产业化水平、农业内部产业结构、非农产业发展水平、农民文化素质及农村基础设施建设状况等因素进行分析,认为这些方面存在的问题限制了农村就业空间的开拓,针对这些问题,进而提出拉长农业产业链,发展农村非农产业,优化农村居住环境等具体对策.     

浅析当前中国农村城镇化建设

农村城镇化建设是贯彻落实科学发展观的重要内容,也是全面建设小康社会的重要任务.本文介绍了城镇化的现状,分析了城镇化进程中的制约因素,最后提出了相应的对策.     

论从实践理解世界的物质性和自然世界的先在性

马克思主义唯物论是一种物本主义形态的唯物论,还是一种超越物本主义形态、从实践理解世界的本质相关问题的实践的唯物主义的唯物论?这是一个我们必须搞清楚的有关马克思主义唯物论的本质规定性和精神实质的重大问题.在考察物本主义的唯物论及其思维方式的局限性的基础上,揭示了马克思主义唯物论是现代的、实践的唯物主义,并重点研讨了马克思主义唯物论关于从实践理解世界的物质性和自然世界的先在性的原理,以期为马克思主义唯物论进一步阐明人类世界的实践性原理奠定基础.     

Effect of cyproheptadine on the ultrastructure of the neurons of the arcuate nucleus in the hypothalamus of the rat

The data are presented on changes in the rat arcuate nuclear neuron ultrastructure after using cyproheptadine (peritol, Egyt Pharmaceutical Works, Hungary) in a water suspension at a dose of 20 mg/kg once daily during 7 successive days and twice a day within 10 days. It was shown that cyproheptadine decreases the functional activity of the arcuate nuclear neurons, depending on the total amount of the drug used. Cyproheptadine-induced inhibition of the forming neurohormone release from neurons is likely to be one of the mechanisms of its therapeutic effect in Itsenko-Cushing's disease.     

Characteristics of the sympathetic innervation of the nictitating membrane and of the vasculature of the nose and tongue of the cat

Vasomotor responses from the nasal mucosa and tongue, and contractions of the nictitating membrane, were recorded on stimulation of the cervical sympathetic or internal carotid nerves. Preganglionic sympathetic nerve fibres which elicited a membrane response possessed a lower threshold than those which evoked nasal vasoconstriction, while the latter displayed a lower threshold than fibres which evoked tongue vasoconstriction. The sympathetic vasodilator fibres to the tongue whose activity was revealed after alpha-receptor blockade, had a similar threshold to the vasoconstrictor fibres. Membrane contraction, nasal vasoconstriction and occasionally tongue vasoconstriction could be evoked by stimulating the internal carotid nerve. The postganglionic fibres innervating the nasal mucosa had a similar threshold to those of the nictitating membrane, which may indicate that there are small myelinated fibres innervating the mucosa. The preganglionic compound nerve action potential had four major components, S1-S4. S1, S2 and usually S3 fibres were associated with membrane contraction; S2, S3 and sometimes S1 fibres were associated with nasal vasoconstriction; and S3, usually S2 and occasionally S1 fibres were associated with vasoconstriction in the tongue. It is concluded that each of these three groups of nerve fibres, but not S4 fibres, may include fibres associated functionally with the three effectors. There was a considerable difference between the relative amplitude of the responses of the three effectors elicited by stimulation of the cervical sympathetic nerve at frequencies between 0.2 and 2 Hz. Vasoconstrictor responses were relatively larger than membrane contractions suggesting differences in the mechanisms of neurotransmission at the neuroeffector junctions.