农村养老保险与经济增长的相关性研究——以乳山市为例

以乳山市为例,介绍了我国新型农村养老保险发展现状,分析了农村存在的问题,并对农村养老保险与经济增长的相关关系进行了实证分析,提出了完善新型农村社会养老保险的对策建议。     

发展型社会政策视角下新型农村社会养老保险的构建

新型农村社会养老保险还存在一些尚待解决的问题,通过对发展型社会政策的认识,对新型农村社会养老保险中几个受到关注的层面进行了探讨,提出新型农村社会养老保险的完善与发展路径就是加强社区组织的培育,重建农村经济组织和融入社会组织。     

破解江西新型农村社会养老保险发展瓶颈的思考

2009年国家新型农村社会养老保险试点工作全面启动,江西有11个县区参与试点.作为欠发地区,江西要全面深入地推行新型农村社会养老保险,存在资金短缺、保值升值难等瓶颈.破解发展瓶颈,有助于新型农村社会养老保险的健康发展.     

制度全覆盖后新型农村社会养老保险制度可持续发展研究——以广西壮族自治区为例

新型农村社会养老保险制度既是一项重大的惠民工程,又是一项复杂的社会系统工程。阐述了新型农村社会养老保险制度全覆盖的理论依据,分析了制度全覆盖后新型农村社会养老保险制度实施过程中面临经办机构建设与信息化建设滞后、地方各级政府财政面临较大的财政硬约束、新农保制度"碎片化"、青年农民逆向选择、新农保制度的动态发展等问题,并提出了制度全覆盖后新型农村社会养老保险制度可持续发展有效途径的对策建议。     

潍坊市新型农村养老保险试点调查

潍坊市新型农村社会养老保险试点工作已全面推开,在筹资管理模式、统筹城乡发展等方面取得明显成效。但调查中也发现试点存在某些局限和有待于纾解的问题。基于潍坊市试点的个案研究,对当前新型农村养老保险的推广进行探讨,并在广泛借鉴成熟经验的基础上,提出了完善新型农村养老保险的政策建议。     

对我国建立新型农村养老保险制度的思考

阐述了我国建立新型农村养老保险制度的必要性及指导原则,提出了建立新型农村养老保险的路径。     

长沙市新型农村社会养老保险筹资机制研究

资金是长沙市新型农村社会养老保险实施的根本保障,建立稳定可靠的新型农村社会养老保险筹资机制,明确资金来源渠道,是长沙市新型农村社会养老保险持续健康发展的关键。从政府投入、个人缴费和集体补助等方面探索建立多方合理分担的筹资机制。     

制度视角下河北省农村社会养老保险探析

河北省自1992年1月正式启动农村社会养老保险工作以来,成绩与问题并存。新型农村社会养老保险试点工作于2009年在全国10%的县展开,以后逐步扩大,到2020年前基本实现全覆盖。在新型农村社会养老保险工作即将全面展开的大背景下,从河北省农村社会养老保险制度的发展及其成绩入手,揭示了河北省农村社会养老保险制度存在的问题,探讨了新形势下完善河北省农村社会养老保险制度的策略。     

农村公众新型农村社会保险教育探析

农民作为新型农村社会养老保险的参与主体,他们对这一制度的认识如何,关系到新型农村社会养老保险的实施效果及农民的保障。因此,加强公众农村社会养老保险制度的宣传教育势在必行。讨论了开展公众农村社会养老保险教育的目的、特点,提出了加强农村公众社会保险教育的方法。从可持续发展的角度为宣传普及新型农村养老保险制度提出探索性建议。     

新农保对家庭教育支出的影响及其作用机制——基于CFPS数据的实证分析

新型农村社会养老保险是农村家庭一项基本的生活保障。基于中国家庭追踪调查（China Family Panel Studies,CFPS）2016年、2018年、2020年3期数据,研究新型农村社会养老保险对农村家庭教育支出的影响及其作用机制。结果发现：农村家庭参加新型农村社会养老保险可以显著增加家庭教育支出,并且教育期望在其中发挥了调节效应;在新型农村社会养老保险的影响下,从子女特征来看,家庭教育支出对女性的影响大于男性,对独生子女的影响比多子女的家庭更为显著;从家庭收入来看,新型农村社会养老保险对低收入家庭的生活影响大于高收入家庭。     

Transformation of a star into a planet in a millisecond pulsar binary

Millisecond pulsars are thought to be neutron stars that have been spun-up by accretion of matter from a binary companion. Although most are in binary systems, some 30% are solitary, and their origin is therefore mysterious. PSR J1719-1438, a 5.7-millisecond pulsar, was detected in a recent survey with the Parkes 64-meter radio telescope. We show that this pulsar is in a binary system with an orbital period of 2.2 hours. The mass of its companion is near that of Jupiter, but its minimum density of 23 grams per cubic centimeter suggests that it may be an ultralow-mass carbon white dwarf. This system may thus have once been an ultracompact low-mass x-ray binary, where the companion narrowly avoided complete destruction.     

Action at a distance along a DNA

A number of ways are known by which an event at one location on a DNA molecule can affect an event at a distant location on the same molecule. Three classes of mechanisms are described for such distal actions: tracking or translocation of a protein along a DNA, the association of two proteins bound at separate sites to form a DNA loop in between, and distal interactions that are affected by the topology of the DNA. The basic characteristics of each type of mechanism are discussed in terms of the known physicochemical properties of DNA. The various modes of action at a distance are often interrelated. Examples include the formation of positively and negatively supercoiled DNA loops by tracking and the strong effects of DNA topology on looping.     

Development of a receptor on a foreign nerve fiber in a Pacinian corpuscle

When the sensory fiber of a Pacinian corpuscle (in cat mesentery) is transected (at the inferior mesenteric nerve) transduction fails within 30 hours: the nerve ending produces no generator potentials in response to mechanical stimulation. Electrically elicited nerve impulse conduction continues for at least another 18 hours. A transducer mechanism develops on a regenerating nerve fiber when this fiber enters the denervated corpuscle. Such transducer development takes place on myelinated fibers from the inferior mesenteric nerve, which normally supplies corpuscles, as well as on myelinated hypogastric nerve fibers, which normally do not go to corpuscles, including fibers larger than the original corpuscle afferents.     

Conversion of a peroxiredoxin into a disulfide reductase by a triplet repeat expansion

Pathways for the reduction of protein disulfide bonds are found in all organisms and are required for the reductive recycling of certain enzymes including the essential protein ribonucleotide reductase. An Escherichia coli strain that lacks both thioredoxin reductase and glutathione reductase grows extremely poorly. Here, we show that a mutation occurring at high frequencies in the gene ahpC, encoding a peroxiredoxin, restores normal growth to this strain. This mutation is the result of a reversible expansion of a triplet nucleotide repeat sequence, leading to the addition of one amino acid that converts the AhpC protein from a peroxidase to a disulfide reductase. The ready mutational interconversion between the two activities could provide an evolutionary advantage to E. coli.     

一个具有非自治性扰动的拟线性椭圆方程非平凡解的存在性

利用变量替换和Ekeland变分原理,在R～N上获得了一类具有非自治扰动的拟线性椭同方程非平凡解的存在性结果.

Abstract：

The existence of a nontrivial solution is obtained for a quasilinear elliptic equations on RN with a non-autonomous perturbation by the change of variable and the Ekeland's variational principle.