安阳市高新区城乡结合部土地利用结构浅析

以安阳市高新区为例,选取1996,2007和2009年3个年段,从土地利用结构现状及存在问题入手,进行了土地利用结构变化实例分析;初步总结了高新区在土地利用中存在的一些问题,并有针对性地提出了相关建议。     

基于职业用途英语库建设探索专业分阶段教学模式

现实的英语教学不能满足高职高专人才培养的要求。通过职业用途英语库建设,依托专业,设置教学阶段及相应教学内容,模拟工作中问题的解决,探索与专业紧密结合的英语教学模式。     

卡多话衰变现状研究

卡多话是哈尼族卡多支系人所说的一种语言,属于哈尼语碧卡方言,其使用人口约有18万。近20年来,随着社会的发展,卡多话呈现出一种衰退的趋势。围绕卡多话的衰退现象,从语言使用的现状、词汇能力以及语言本体的衰退表现三个方面来论证和揭示卡多话衰退的现状,并探究其衰退的原因。     

Association between mothers’ problematic Internet use and maternal recognition of child abuse

BackgroundThere are few studies about mothers’ problematic Internet use (PIU). Mothers’ PIU may lead to inadequate parenting and child abuse.ObjectiveThis cross-sectional study aimed to clarify the association between mothers’ PIU and their recognition of child abuse.Participants and settingWe analyzed data collected of health examinations of children aged 4 months, 1.5 years, and 3 years which were carried out in Matsue City, Shimane Prefecture, Japan between April 2016 and March 2017. The number of the subjects were 1685, 1729, 1674, respectively.MethodsWe used logistic regression analysis to clarify the association between mothers’ PIU (Young’s Diagnostic Questionnaire for Internet Addiction score: ≥5) and their recognition of child abuse (selecting < True of me > for < I sometimes think that I am abusing my child > on a questionnaire survey), which was adjusted for covariates such as maternal age, number of children, daytime caretaker, social support, postpartum depression, and current smoking status of the parents.ResultsBased on the multivariate logistic regression analysis, the mothers’ PIU was significantly correlated with their recognition of child abuse for children aged 4 months, 1.5 years, or 3 years [odds ratio (OR): 13.30, 95% confidence interval (CI): 1.26–139.98, OR: 7.02, 95% CI: 1.28–38.55, and OR: 28.06, 2.48–317.93, respectively].ConclusionThis study revealed the possibility that mothers with PIU recognize child abuse more than mothers without PIU. However, further studies should be conducted to increase reliability and validity.     

Childhood experiences of maltreatment,reflective functioning and attachment in adolescent and young adult mothers: Effects on mother-infant interaction and emotion regulation

BackgroundMaternal childhood experiences of maltreatment affect parenting and have consequences for a child’s social-emotional development. Adolescent mothers have a higher frequency of a history of maltreatment than adult mothers. However few studies have analyzed the interactions between adolescent mothers with a history of childhood maltreatment and their infants.ObjectiveThe aim of the study was to examine the effect of maternal childhood experiences of maltreatment on mother-infant emotion regulation at infant 3 months, considering both infant and mother individual emotion regulation and their mutual regulation.ParticipantsParticipants were 63 adolescent and young adult mother-infant dyads recruited at a hospital.MethodsThe mothers were administered the Adult Attachment Interview to evaluate reflective functioning and attachment and the Childhood Experiences of Care and Abuse was used to evaluate maternal childhood experiences of maltreatment. Mother-infant interactions were coded with a modified version of the Infant Caregiver Engagement Phases.ResultsDyads with mothers with childhood maltreatment (vs dyads with mothers with no maltreatment) spent more time in negative emotional mutual regulation (p = .009) and less time in positive and neutral mutual emotion regulation (p = .019). Cumulative maternal childhood experiences of maltreatment were associated positively with mother and infant negative states at individual and dyadic level and with the AAI scales of Passivity and Unresolved Trauma (p < .05). The effect of cumulative maternal childhood experiences of maltreatment on mother-infant emotion regulation was direct and not mediated by maternal attachment and reflective function.ConclusionsMaternal childhood experiences of maltreatment increase the risk connected to early motherhood, affecting mother-infant emotion regulation.     

面向用户需求分析的产品评论用例提取研究

[目的/意义]实现海量产品评论数据的快速分析,帮助产品设计人员高效地获取用户需求,在新产品设计的决策中提供参考。[方法/过程]在特征提取和情感分析的基础上,构造了包括"词+词性+词干+位置+依存关系"等节点特征的条件随机场模型,按照"产品特征、谁、在何种情境下、遇到了什么问题"4个要素,以描述手机屏幕和电池的负面评论为例,从产品评论中提取用例。[结果/结论]模型评估和实证研究表明,所构造的模型可以有效地从评论文本中识别产品特征、使用主体、使用情景和遇到的问题,从而快速构造用例,获取用户需求。     

互联网环境下国外健康信息替代搜索研究的回顾与展望

[目的/意义]健康信息搜索对改善人们的健康水平具有重要作用。近年来由非医学专业人士辅助他人搜索健康信息的现象受到了学者的关注,对这一现象的研究将有助于弥合数字不平等对人们健康信息获取造成的差异。[方法/过程]以国外已有的相关研究成果为基础,梳理健康信息替代搜索的概念内涵和理论基础,并从现有文献的研究方法、影响因素和行为特征三个方面对健康信息替代搜索的知识体系进行分析,最后从理论研究和实践探索两个维度进行前沿展望。[结果/结论]研究发现,国外现有的健康信息替代搜索大多局限于现象层面的分析,对主体参与动机、信息交换过程和效果机制的研究都不够深入,我国图书情报领域的学者在这一研究方向上有进一步探索的空间。     

IT engagement as a blessing and a curse? Examining its antecedents and outcomes in organizations

Information technology (IT) engagement is defined as a need to spend more time using IT. Practice-based examples show that IT engagement can have adverse effects in organizations. Although users can potentially get more work done through IT engagement, observations show that the users might jeopardize their well-being and hamper their work performance. We aimed to investigate this complexity in the research on IT engagement by examining its potential antecedents and outcomes in organizations. Considering the potentially mixed outcomes, we developed a model to examine the effects of IT engagement on personal productivity and strain. We also aimed to explain the antecedents of IT engagement by drawing on the collective expectations for IT use. In particular, we examined the extent to which normative pressure on IT use drives users’ information load and IT engagement. Finally, we sought to understand whether users’ attempts to avert dependency on IT use reduced their IT engagement. Several hypotheses were developed and tested with survey data of 1091 organizational IT users. The findings help explain the role of normative pressure as a key driver of IT engagement and validate the positive and negative outcomes of IT engagement in organizations.     

If you Build it,They Won’t Come: What Motivates Employees to Create and Share Tagged Content: A Theoretical Model and Empirical Validation

The purpose of this paper is to investigate factors influencing employees’ knowledge-sharing behavior on social tagging supported systems. Using the strong theoretical background of the well-known technology acceptance model (TAM), this paper proposes and empirically validates a model that fits the social and technical nature of social tagging tools within the public sector. The analyses in this paper were based on data collected from a large survey of more than 480 respondents working for two public organizations in the United States. The findings demonstrate a significant impact of the role of social presence in encouraging employees to create and share content. Further, there is a strong relationship between the benefits employees receive from using tagging tools and their creation and sharing of tagged content. Specifically, the following factors showed a significant impact on employees’ creation and sharing behavior, specifically their attitudes towards and intentions to create and share tags: perceived ease of use, perceived usefulness, social presence, and pro-sharing norms. For researchers, the paper offers an opportunity to further study knowledge-sharing behavior regarding social media technologies. The findings should motivate practitioners to inject these tools with a social aspect so that employees are encouraged to share content.     

黄河流域河源区土地利用变化及其影响研究综述

黄河流域河源区是国家生态屏障和“中华水塔”的重要组成部分,是生态保护优先的践行区。本文梳理了近40年来对黄河流域河源区土地利用格局和过程研究的相关文献,从土地利用现状、变化、效应及政策启示等方面进行了全面分析。研究发现：①黄河流域河源区土地利用格局相对稳定,草地面积占绝对优势。2000年是土地利用及其效应变化的重要转折点。2000年之前,草地、林地和湿地等生态用地减少,草地退化、沙化、土壤侵蚀等效应加剧。2000年之后,生态用地增加,植被指数增加,生态系统逐渐向良性方向转变,碳汇功能增强。②生态工程实施和气候变化使该区域土地利用及其效应极具复杂性。整体上土地退化面积有所减少,程度趋缓,草畜基本实现平衡。东部河湟谷地耕地面积减少,集约度提高,种植结构逐步优化;但局部恶化的态势依旧严峻,土壤侵蚀尤其高寒地带的冻融侵蚀加剧。建议应加强土地利用格局变化的影响因素、土地利用变化的生态效应以及生态保育区溢出价值与自然资产的评估研究,为黄河流域河源保护区可持续发展以供有力的科技支撑。