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61.
盟友选择是网络联盟企业创建阶段的核心任务,是一个典型的多目标决策问题。本文分析了网络联盟企业创建时盟友的选择过程及其影响因素,以层次分析法和模糊数学为理论基础,提出了盟友选择的多目标决策方法。通过一个盟友选择的实例,用工具软件Criterium DecisionPlus应用和验证了该方法。  相似文献   
62.
基于数据仓库技术的虚拟企业合作伙伴选择系统设计   总被引:1,自引:0,他引:1  
针对虚拟企业合作伙伴选择过程中,如何搜集和处理大量数据为伙伴选择提供依据的问题,提出了建立数据仓库的必要性,根据数据仓库的开发原理,结合实际情况设计了数据仓库的数据模型,并对如何进行数据搜集、数据转换和数据加载的过程进行了设计,为盟主企业分析和处理潜在伙伴信息提供了强有力的支持系统.  相似文献   
63.
BackgroundIntimate partner violence (IPV) victimization is a serious public health problem in the world. It is imperative to examine risk factors for IPV victimization.ObjectiveThis meta-analysis aimed to explore the relationship between childhood maltreatment (CM) and IPV victimization and investigate the moderating effects of gender and marital status.Participants and SettingExamination of the literature produced a sample of 56 effect sizes (N = 23,127) for review.MethodsPsycINFO, PsycArticles, EBSCO-ERIC, Medline, Google Scholar, and ProQuest Dissertations & Theses databases were systematically searched until March 31, 2018. Forty-six eligible studies were included in the meta-analysis. Random effects model was used for meta-analysis of the studies.ResultsResults indicated a significant association between total CM and IPV victimization (r = .18, p < .001). Further subgroup analyses revealed that all four types of CM (childhood physical abuse, psychological abuse, sexual abuse, and neglect) were positively related to IPV victimization (r = .19, .18, .17, and .12, respectively). Moreover, the moderation analyses revealed that the association between CM and IPV victimization was stronger for dating couples than for married ones. However, this relation did not show significant difference between males and females.ConclusionsThere is an association between CM and IPV victimization, and it is moderated by marital status.  相似文献   
64.
BackgroundExperiences of intimate partner violence (IPV) victimization negatively impact maternal parenting. However, little is known about the association between fathers’ perpetration of IPV and paternal parenting.ObjectiveTo examine associations between fathers’ IPV perpetration against the child’s mother and fathers’ stimulation and spanking practices with their young child.Participants and SettingWe used two waves of data from the Fragile Families and Child Wellbeing Study in the United States. The analytic sample comprised of 2,257 biological fathers who had been in a romantic relationship with the child’s mother.MethodsFathers’ IPV perpetration at year 1 and 3 was measured based on maternal report. Fathers were categorized into: never perpetrators (no IPV at either year), persisters (IPV at both years), desisters (IPV at year 1 only), and emergers (IPV at year 3 only). Fathers’ parenting at year 3 was measured based on self-reported stimulation (e.g., reading books, playing games, telling stories) and spanking.ResultsApproximately one-third of fathers never perpetrated IPV, 35.8% were persisters, 14.4% were desisters, and 16.9% were emergers. For stimulation, persisters (β=-0.16, 95% CI: -0.25, -0.06) and emergers (β=-0.25, 95% CI: -0.36, -0.14), but not desisters (β=-0.02, 95% CI: -0.14, 0.11), were less engaged in stimulation than fathers who never perpetrated IPV. However, for spanking, there were no differences in the associations by father IPV profiles.ConclusionsFindings suggest that fathers’ perpetration of IPV is related to their stimulation practices. Partner-abusive men and their children may benefit from parenting programs that promote engagement in stimulation and improve the quality of parent-child relationships.  相似文献   
65.
Male and female victims’ communication of intimate partner violence to others in the face of potential repercussions shows how language reflects/is reflected by relational identities when deciding to stay/leave abusive relationships. In this study, a non-clinical sample (N?=?484), self-identified as male (n?=?156) or female (n?=?331) victims, indicated reason-messages used with self and/or others for why they stayed in these violent relationships. Analyses of both independent messages and grouped themes showed victims’ communication as inherently (and perhaps, falsely) gendered. Viewed through a gender- (versus sex-) lens, victims’ reasons for staying suggest barriers to support may be communicated as gendered.  相似文献   
66.
运用文献资料法、教学实验法、数理统计法等研究手法,对本校2012级2个排球选项普修班的学生进行了教学实验。实验结果表明:在排球教学中运用同伴教育教学方法是有效的、可行的,对学生技术成绩的提升是明显的,并在激发学生学习积极性、端正学习态度、合作意识以及社会交往能力等方面都优于传统教学方法。  相似文献   
67.
将创新类型因素及伙伴合作意愿因素考虑到企业伙伴选择影响因素路径分析中,在问卷调查的基础上,运用结构方程模型及多群组结构方程模型等方法,对企业原始创新中学研合作伙伴选择的影响因素及其作用路径进行了实证分析。结果表明:企业原始创新能力虽不直接影响企业伙伴选择过程,但通过学研方参与原始创新的意愿间接影响企业伙伴选择投入及企业伙伴评价过程,企业伙伴选择投入及企业伙伴评价过程是企业与学研方建立正式合作关系的重要影响因素。企业规模特征、企业行业特征及企业所有权性质在不同假设路径中的影响均存在显著差异。研究结论为企业及政府制定相关政策措施促进我国产学研合作原始创新提供了依据。  相似文献   
68.
《Child abuse & neglect》2014,38(12):1902-1913
Child maltreatment is one of the most commonly examined risk factors for violence in dating relationships. Often referred to as the intergenerational transmission of violence or cycle of violence, a fair amount of research suggests that experiencing abuse during childhood significantly increases the likelihood of involvement in violent relationships later, but these conclusions are primarily based on correlational research designs. Furthermore, the majority of research linking childhood maltreatment and dating violence has focused on samples of young people from the United States. Considering these limitations, the current study uses a rigorous, propensity score matching approach to estimate the causal effect of experiencing child physical abuse on adult dating violence among a large sample of South Korean emerging adults. Results indicate that the link between child physical abuse and adult dating violence is spurious rather than causal. Study limitations and implications are discussed.  相似文献   
69.
《Child abuse & neglect》2014,38(12):1966-1975
The relational model of trauma (Scheeringa & Zeanah, 2001) proposes that infants’ trauma symptoms may be influenced by their mothers' trauma symptoms and disruptions in caregiving behavior, although the mechanisms by which this occurs are less well understood. In this research, we examined the direct and indirect effects of a traumatic event (maternal intimate partner violence [IPV]), maternal trauma symptoms, and impaired (harsh and neglectful) parenting on infant trauma symptoms in a sample of mother–infant dyads (N = 182) using structural equation modeling. Mothers completed questionnaires on IPV experienced during pregnancy and the child's first year of life, their past-month trauma symptoms, their child's past-month trauma symptoms, and their parenting behaviors. Results indicated that the effects of prenatal IPV on infant trauma symptoms were partially mediated by maternal trauma symptoms, and the relationship between maternal and infant trauma symptoms was fully mediated by neglectful parenting. Postnatal IPV did not affect maternal or infant trauma symptoms. Findings support the application of the relational model to IPV-exposed mother–infant dyads, with regard to IPV experienced during pregnancy, and help identify potential foci of intervention for professionals working with mothers and children.  相似文献   
70.
教育大数据正成为推动教育系统创新与变革的颠覆性力量。文章围绕教育大数据促进精准教学以提升教学效果为目标,从常态教学的挑战与问题出发,阐释大数据技术改进教学之道:大数据何以解决常态教学问题、何以改进教学效果、何以促进个性化自适应学习。以此为理论基础,文章以"智慧学伴"为例,探究了基于"智慧学伴"开展精准教学的应用与实践,并形成了基于数据分析的精准教学模式,文章的研究结果可为应用大数据改进教学提供借鉴。  相似文献   
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