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101.
Men and masculinity are considered a key factor in changing gender inequality at the transition to parenthood. Prior research on gendered division of parental leave concentrated on fathers’ perspectives. This paper includes perspectives of fathers and mothers who make use of parental leave in different ways and asks how masculinity is jointly constructed, how these constructions are linked to the use of parental leave, and if and how they are oriented towards hegemonic masculinity. The analysis is based on 44 qualitative interviews with 11 Austrian couples before and after birth when decisions concerning parental leave were made. Our case reconstructions reveal that parents considered parental leave a central element of masculinity as long as it suited fathers’ needs and circumstances permitted. The decisions for sharing parental leave were father-centred as both partners valued father’s leave higher than mother’s.  相似文献   
102.
目前,针对供应链协同度的分析主要集中在单制造商与单供应商之间,为将协同度问题更为一般化,现将供应链协同问题扩展到多供应商、单制造商与多经销商情景中.基于供应链整体运营效率的角度,以制造商为主导,从多经销商、单制造商、多供应商与供应链稳定性四个维度构建供应链协同发展指标体系,将评价指标作为供应链子系统的序参量,运用协同学理论的有序度方法分析供应链子系统的协同性及供应链整体系统的协同度.实例分析说明评价指标体系和协同模型的有效性和可行性,针对协同测度结果提出了供应链系统的协同发展对策.  相似文献   
103.
This article offers an applied review of key issues and methods for the analysis of longitudinal panel data in the presence of missing values. The authors consider the unique challenges associated with attrition (survey dropout), incomplete repeated measures, and unknown observations of time. Using simulated data based on 4 waves of the Marital Instability Over the Life Course Study (n = 2,034), they applied a fixed effect regression model and an event‐history analysis with time‐varying covariates. They then compared results for analyses with nonimputed missing data and with imputed data both in long and in wide structures. Imputation produced improved estimates in the event‐history analysis but only modest improvements in the estimates and standard errors of the fixed effects analysis. Factors responsible for differences in the value of imputation are examined, and recommendations for handling missing values in panel data are presented.  相似文献   
104.
We are concerned with three different types of multivariate chi-square distributions. Their members play important roles as limiting distributions of vectors of test statistics in several applications of multiple hypotheses testing. We explain these applications and consider the computation of multiplicity-adjusted p-values under the respective global hypothesis. By means of numerical examples, we demonstrate how much gain in level exhaustion or, equivalently, power can be achieved with corresponding multivariate multiple tests compared with approaches which are only based on univariate marginal distributions and do not take the dependence structure among the test statistics into account. As a further contribution of independent value, we provide an overview of essentially all analytic formulas for computing multivariate chi-square probabilities of the considered types which are available up to present. These formulas were scattered in the previous literature and are presented here in a unified manner.  相似文献   
105.
In one-way ANOVA, most of the pairwise multiple comparison procedures depend on normality assumption of errors. In practice, errors have non-normal distributions so frequently. Therefore, it is very important to develop robust estimators of location and the associated variance under non-normality. In this paper, we consider the estimation of one-way ANOVA model parameters to make pairwise multiple comparisons under short-tailed symmetric (STS) distribution. The classical least squares method is neither efficient nor robust and maximum likelihood estimation technique is problematic in this situation. Modified maximum likelihood (MML) estimation technique gives the opportunity to estimate model parameters in closed forms under non-normal distributions. Hence, the use of MML estimators in the test statistic is proposed for pairwise multiple comparisons under STS distribution. The efficiency and power comparisons of the test statistic based on sample mean, trimmed mean, wave and MML estimators are given and the robustness of the test obtained using these estimators under plausible alternatives and inlier model are examined. It is demonstrated that the test statistic based on MML estimators is efficient and robust and the corresponding test is more powerful and having smallest Type I error.  相似文献   
106.
This paper studies the asymptotic behaviour of the false discovery and non‐discovery proportions of the dynamic adaptive procedure under some dependence structure. A Bahadur‐type representation of the cut point in simultaneously performing a large scale of tests is presented. The asymptotic bias decompositions of the false discovery and non‐discovery proportions are given under some dependence structure. In addition to existing literatures, we find that the randomness due to the dynamic selection of the tuning parameter in estimating the true null rate serves as a source of the approximation error in the Bahadur representation and enters into the asymptotic bias term of the false discovery proportion and those of the false non‐discovery proportion. The theory explains to some extent why some seemingly attractive dynamic adaptive procedures do not outperform the competing fixed adaptive procedures substantially in some situations. Simulations justify our theory and findings.  相似文献   
107.
运用多源流理论构建宅基地使用权确权的分析框架,探讨宅基地使用权确权工作现实、政策与政治等问题,从而为完善宅基地使用权和收益权权能等政策制定提供参考和借鉴。采用了文献法,实地调研法,访谈法等对江苏省10市进行实地调研,结果发现:宅基地使用权确权发证率低以及确权工作受诸多因素的影响,宅基地使用权确权还存在着历史界限不清晰、登记主体模糊、实践操作程序不规范、“户宅不均”、“面积不等”、专业技术人才缺乏和工作经费投入不足等现实困境;已颁布的法律还存在着条文间的相互矛盾、“户”的界定不统一、宅基地面积计算方法多样化、宅基地使用权流转标准苛刻等体制局限;农户认知水平与情绪、利益相关者意愿以及政府态度与行动策略等利益失衡的影响。由此,以不动产登记为契机,围绕三大源流,从政策支持机制、法律规范机制、监督动员机制三大策略着手,提出了宅基地使用权确权工作的政策建议。  相似文献   
108.
In the June issue ofSociological Forum, several authors addressed the question, What's Wrong with Sociology. Answers included increased fragmentation of the discipline, and the lack of an identifiable cumulative core of sociological knowledge. This paper examines many of the claims made by the contributors to the June 1994Sociological Forum, reframes their arguments, and by placing debates regarding the problems in sociology in a broader perspective, identifies many of the recent advances made by the discipline. Focusing on such notable contributions to the field as feminist and postmodern scholarship, we locate the positive side of multiple perspective research.Feminist Scholars in Sociology is a collective of researchers and teachers at the University of Colorado interested in exploring and sharing feminist theory and methodology.  相似文献   
109.
BackgroundIdentifying common factors that influence job satisfaction for midwives working in diverse work settings is challenging. Applying a work design model developed in organisational behaviour to the midwifery context may help identify key antecedents of midwives job satisfaction.AimTo investigate three job characteristics – decision-making autonomy, empowerment, and professional recognition as antecedents of job satisfaction in New Zealand (NZ) midwives.MethodsLatent multiple regressions were performed on data from Lead Maternity Carer (LMC) midwives n = 327, employed midwives n = 255, and midwives working in ‘mixed-roles’ n = 123.FindingsWe found that professional recognition is positively linked to job satisfaction for midwives in all three work settings. At the same time, decision-making autonomy and empowerment were shown to influence job satisfaction for midwives working as LMCs only.DiscussionOur main finding suggests that the esteem generated from being acknowledged as an expert and valuable contributor by maternity health colleagues is satisfying across all work contexts. Professional recognition encompasses the social dimension of midwifery work and influences midwives job satisfaction. Decision-making autonomy and empowerment are task and relational job characteristics that may not be similarly experienced by all midwives to noticeably influence job satisfaction.ConclusionGiven that job satisfaction contributes to recruitment, retention, and sustainability, our findings show that drivers of job satisfaction differ by midwifery work context. We present evidence to support tailored efforts to bolster midwives job satisfaction, especially where resources are limited.  相似文献   
110.
如同经济学的供求关系一样,社会道德水平的状况与道德的有效供给之间有着内在的关联.道德的多元化特征与社会利益的多元化需求是一致的,多元化的利益需求引发多元化的道德需求,缺乏有效的道德供给,特别是缺乏有效的主流道德供给,是道德危机产生的原因.而主流道德的有效供给取决于社会当前及未来的政治、经济走向和社会文化底蕴,以及宣传教育等等手段.  相似文献   
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