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821.
透析实施生育保险制度的局势 总被引:1,自引:1,他引:0
从社会学视角对实施生育保险制度的必要性进行探讨,分别从宏观(包括人口转变规律、经济体制改革、提高人口素质的需求三个方面)、中观(包括社会支持网络的变迁、保障女性群体地位、保障企业平等竞争三个方面)和微观层面(包括生育观念的转变、生育的风险性、体现女性的生育价值三个方面)进行层层剖析,说明实施和拓宽生育保险制度势在必行。 相似文献
822.
青藏高原特色农业国际竞争力评价指标体系的构建 总被引:2,自引:0,他引:2
基于农业国际竞争力评价指标体系相关文献回顾的基础上,从国内比较优势指标、显示性指标、解释性指标和实体性指标四个方面提出了青藏高原特色农业国际竞争力的评价标准,建立了包括4个一级指标、12个二级指标和24个三级指标的特色农业国际竞争力的评价指标体系,以期为进一步研究青藏高原特色农业发展提供参考. 相似文献
823.
传统节日文化生存发展策略——写在传统节日法定化之后 总被引:2,自引:0,他引:2
当前,中国传统节日文化要得以生存与发展,有三个方面的工作是紧迫和重要的:提升对传统节日的"文化自觉",这是中国传统节日文化的生存之本,这方面媒体、学校教育、家庭、社区均有着重要的责任;重建传统节日的符号体系,在这方面,企业、商家和政府肩负着重要的使命;转换传统节日的参与模式,将封闭型的"血缘共同体参与模式"转换为适应现代生活的开放型的"业缘共同体参与模式",这对中国传统节日文化的生存与发展有着现实而又长远的意义,这方面,各类社会组织起着重要的作用. 相似文献
824.
T.V. Ignatova V.A. Ivichev F.F. Khusnoiarov 《Russian social science review : a journal of translations》2017,58(1):69-73
It is impossible to imagine the contemporary Internet without social media. Government agents, commercial, state, and social organizations, the opposition, and other citizens use social media as a giant turbine. Unfortunately, this turbine can also be used to spread disinformation as well as hostile propaganda on a mass scale. In this article we show how vulnerable social media are to infiltration by botnets with the goal of launching information attacks. 相似文献
825.
Margarita Frederico Associate Professor Maureen Long Patricia McNamara Lynne McPherson Richard Rose Associate Professor 《Child & Family Social Work》2017,22(2):1064-1074
How best to support children and young people in foster care remains a challenge for child welfare. There has been little Australian research on the outcomes for children and young people placed in therapeutic foster care (TFC). This article aims to address this knowledge gap, presenting the evaluation of a state‐wide model of TFC known as the Circle Program operating in Victoria, Australia. Data sources for the study were case assessment analysis; surveys of foster carers, program workers and other stakeholders in the sector; and both focus groups and individual interviews with foster care workers. The evaluation found that the Circle Program lessened the number of unplanned exits of children from foster placements compared with generalist foster care. Another important finding was that the Circle Program positively influenced foster carers' decisions to stay in the carer role. Key components perceived as contributing to outcomes of the Circle Program included enhanced training of foster carers, intensive carer support, specialist therapeutic support to the child and carer, therapeutic service to family members and a network of services to provide support to the child. 相似文献
826.
M. Hermanns 《Journal of Statistical Computation and Simulation》2017,87(3):607-630
Point and interval estimators for the scale parameter of the component lifetime distribution of a k-component parallel system are obtained when the component lifetimes are assumed to be independently and identically exponentially distributed. We prove that the maximum likelihood estimator of the scale parameter based on progressively Type-II censored system lifetimes is unique and can be obtained by a fixed-point iteration procedure. In particular, we illustrate that the Newton–Raphson method does not converge for any initial value. Furthermore, exact confidence intervals are constructed by a transformation using normalized spacings and other component lifetime distributions including Weibull distribution are discussed. 相似文献
827.
ABSTRACTIn 2013, after nearly two decades of operating in a distributed legacy Integrated Library System (ILS) environment on local servers, the Orbis Cascade Alliance, a consortium of public and private academic libraries in Washington, Oregon, and Idaho, began a two-year-long process to migrate its 37 members to a shared implementation of Ex Libris's cloud-based Alma library management system (LMS) and Primo discovery interface. Although much has been written on electronic resource management (ERM) functionality at an institution level, little has been written on serials and ERM functionality and workflows within a shared consortial environment. This article discusses the challenges and opportunities of implementing a consortial-based LMS, with particular emphasis on serials and ERM functionality. Key migration issues related to serials control, acquisitions, licensing, administration, cataloging, statistics, and interoperability are examined at the institutional and large-scale networked levels. Benefits and limitations of using a shared consortial cloud-based LMS are explored, and the overall capabilities of the Alma LMS for electronic resource management are reviewed. 相似文献
828.
Copulas have proved to be very successful tools for the flexible modeling of dependence. Bivariate copulas have been deeply researched in recent years, while building higher-dimensional copulas is still recognized to be a difficult task. In this paper, we study the higher-dimensional dependent reliability systems using a type of decomposition called “vine,” by which a multivariate distribution can be decomposed into a cascade of bivariate copulas. Some equations of system reliability for parallel, series, and k-out-of-n systems are obtained and then decomposed based on C-vine and D-vine copulas. Finally, a shutdown system is considered to illustrate the results obtained in the paper. 相似文献
829.
This paper treats the problem of stochastic comparisons for the extreme order statistics arising from heterogeneous beta distributions. Some sufficient conditions involved in majorization-type partial orders are provided for comparing the extreme order statistics in the sense of various magnitude orderings including the likelihood ratio order, the reversed hazard rate order, the usual stochastic order, and the usual multivariate stochastic order. The results established here strengthen and extend those including Kochar and Xu (2007), Mao and Hu (2010), Balakrishnan et al. (2014), and Torrado (2015). A real application in system assembly and some numerical examples are also presented to illustrate the theoretical results. 相似文献
830.
The new rural cooperative medical system (NCMS) is the primary form of social insurance in rural China. This study aims to explore how the NCMS influences the health care seeking behaviors of middle-aged and older Chinese, considering the family and community contexts. A series of multi-level (three-level) models using data from the first wave of the China Health and Retirement Longitudinal Study (CHARLS) are used. We find that the presence of NCMS coverage has a statistically significant association with seeking inpatient and outpatient care but not physical checkups among middle-aged and older rural Chinese: Rural residents insured by NCMS were more likely to seek inpatient and outpatient care than people who were not insured. Other factors at the individual level (such as self-perceived health and number of doctor-diagnosed chronic diseases), the family level (such as living arrangements and household expenditures), and the community level (such as the presence of township hospitals within the community) are also significant predictors of health care seeking behaviors. 相似文献