多重环境规制对区域产业结构变动的时滞效应

探究环境规制政策对产业结构变动的时滞效应是理解政策在时间维度上影响产业结构变动的关键.选取京津冀及周边地区作为研究区域,通过量化分析2004年~2016年中央层面和京津冀及周边地区的环境规制政策,研究“中央+地方”多重环境规制政策对产业结构变动的时滞效应.结果表明:1)环境规制政策对产业结构变动的时滞效应是多期的,不同时期的影响效应不相同.产业结构变动亦是多期环境规制政策作用的结果,多期环境规制政策对产业结构变动的影响呈现倒“U”形.2)环境规制政策通常在颁布当年由于“冲击效应”对污染企业产生规制作用,但冲击往往是强烈且短暂的,会导致污染企业在短期内做出暂时性应对行为.3)环境规制政策从颁布后的第三年开始对产业结构变动发挥持续稳定的规制作用,使京津冀及周边地区第二产业结构向政策期望的方向变动.     

Women's expectations and experiences with labour pain in medical and midwifery models of birth in the United States

BackgroundThis research focuses on how women understand and experience labour as related to two competing views of childbirth pain. The biomedical view is that labour pain is abnormal and anaesthesia/analgesia use is encouraged to relieve the pain. The midwifery view is that pain is a normal part of labour that should be worked with instead of against.AimsTo determine differences in the preparation for and experiences with labour pain by women choosing midwives versus obstetricians.MethodsPrenatal and postpartum in-depth semi-structured interviews were conducted with a convenience sample of 80 women in Florida (United States): 40 who had chosen an obstetrician and 40 who had chosen a licensed midwife as their birth practitioner.FindingsWomen in both groups were concerned with the pain of childbirth before and after their labour experiences. Women choosing midwives discussed preparing for pain through various non-pharmaceutical coping methods, while women choosing physicians discussed pharmaceutical and non-pharmaceutical pain relief.ConclusionsEqual numbers of women expressed concerns with childbirth pain during the prenatal interviews, while more women choosing doctors spoke about pain after their births. Women had negative experiences when their planned pain relief method, either natural or medical, did not occur. The quandary facing women when it comes to labour pain relief is not choosing what they desire, but rather preparing themselves for the possibility that they may have to accept alternatives to their original preferences.     

From compliance to self‐regulation: Development during early childhood

This study examined the development of self‐regulation during early childhood and the reciprocal relations between self‐regulation and maternal sensitivity. Data (N = 1,364) were drawn from the NICHD Study of Early Child Care and Youth Development (NICHD SECCYD). Children's situational and committed compliance were assessed in the laboratory at 24 and 36 months, delay of gratification at 54 months, self‐control at 54 months and kindergarten age, and maternal sensitivity was observed at 24, 36, and 54 months. Self‐regulation was characterized to progress from situational compliance to committed compliance and then to fully self‐motivated regulation. Findings also suggest that the development of self‐regulation reflects an ongoing transactional process in which child self‐regulation and maternal sensitivity mutually influence each other.     

Affective Social Competence and Teacher–child Relationship Quality: Race/Ethnicity and Family Income Level as Moderators

This study examined whether race/ethnicity and family income level moderated associations between children's affective social competence and teacher–child relationships among 132 Black, White, and Latino preschoolers. Boys and girls were equally represented in the sample. Of the three racial/ethnic groups, Latino children scored lowest on emotion regulation, were less close to their teachers, and experienced more teacher–child conflict and dependence. In contrast, Black children had closer, less conflict‐laden, and less dependent teacher–child relationships than children of other racial/ethnic backgrounds. Emotion regulation served as a protective factor against problematic teacher–child relationships, particularly for Latino and Black children compared with high‐income White children. Emotion regulation was positively associated with teacher–child closeness for Black children. However, it was negatively associated with teacher–child conflict for Latino children, regardless of income. For all outcomes, teacher characteristics accounted highly for the differences in teacher–child relational quality. Findings are discussed in terms of the functional role of emotions for teacher–child relationships and suggest important contextual influences on the associations.     

Proactive Parenting and Children's Effortful Control: Mediating Role of Language and Indirect Intervention Effects

We examined associations of proactive parenting, child verbal ability, and child effortful control within the context of a randomized prevention trial focused on enhancing parenting practices in low‐income families. Participants (N = 731) were assessed annually from the age of two to five, with half randomly assigned to the Family Check‐Up (FCU). Results indicated that the child's verbal ability at the age of three partially mediated the influence of proactive parenting at the age of two on children's effortful control at the age of five. More importantly, the FCU indirectly facilitated children's effortful control by sequentially improving proactive parenting and children's verbal ability. The findings are discussed with respect to taking a more integrative approach to understanding early predictors and the promotion of self‐regulation in early childhood.     

Challenges for Divorced Parents: Regulating Negative Emotions in Post‐Divorce Relationships

Emotion regulation processes in post‐divorce parental relationships are analysed using thematic qualitative analysis. In two separate interview episodes, three and five years post‐divorce, 55 people were interviewed: 10 couples and 35 individuals. Two themes emerged on how parents deal with their negative emotions after divorce. The first theme, emotion regulation flexibility, reveals how some parents effectively regulate negative emotions following the divorce. The second theme, emotion regulation rigidity, reveals that other parents retain feelings of anger, hostility, and resentment following the divorce as a consequence of dysfunctional emotion regulation strategies. This allows a deeper understanding of the processes of emotion regulation in family conflict, which may be easily applied in most therapeutic orientations.     

家训家规的社会管理价值

由于某些主客观原因，集装箱空箱运转存在时空不平衡性，低效率的干货集装箱空箱调整会增加运输成本，不利于集装箱货运的发展。现从系统混沌的角度分析空箱调整系统的动态发展过程，用熵来量化该系统的稳定性，得出通过优化空箱调整过程来降低系统的熵值，增加系统稳定。在考虑集装箱站空箱调运优先级的情况下，引入径路阻抗的概念，建立一定的空箱调整模型，确定从发送站到终点站的空箱流分配，以总箱阻抗最小化为目标，并用算例验证模型的实用性。     

Mother Emotion,Child Temperament,and Young Children's Helpless Responses to Failure

Young children differ in their responses to failure, displaying mastery or helpless behavior patterns. We examine the moderating role of child temperament on the association between parent warmth/negativity and children's helpless responses to failure. Regarding temperament, we focus on tendencies to experience interest and sadness because they entail task engagement and withdrawal, respectively. We measured mother (n=150) expressions of positive and negative emotion during a teaching task, assessed temperament using LabTAB‐Preschool episodes, and coded helplessness during an impossible puzzle task. Maternal negative emotion during teaching was positively associated with helplessness, but only for children low in interest. Maternal warmth was negatively associated with helplessness, but only for children high in sadness; sadness did not moderate the relation between maternal negativity and helplessness. Findings provide support for parenting by temperament goodness‐of‐fit models and for a discrete emotions approach to temperament.     

Getting the first birth right: A retrospective study of outcomes for low-risk primiparous women receiving standard care versus midwifery model of care in the same tertiary hospital

BackgroundThere is national and international concern for increasing obstetric intervention in childbirth and rising caesarean section rates. Repeat caesarean section is a major contributing factor, making primiparous women an important target for strategies to reduce unnecessary intervention and surgeries in childbirth.AimThe aim was to compare outcomes for a cohort of low risk primiparous women who accessed a midwifery continuity model of care with those who received standard public care in the same tertiary hospital.MethodsA retrospective comparative cohort study design was implemented drawing on data from two databases held by a tertiary hospital for the period 1 January 2010 to 31 December 2011. Categorical data were analysed using the chi-squared statistic and Fisher's exact test. Continuous data were analysed using Student's t-test. Comparisons are presented using unadjusted and adjusted odds ratios, with 95% confidence intervals (CIs) and p-values with significance set at 0.05.ResultsData for 426 women experiencing continuity of midwifery care and 1220 experiencing standard public care were compared. The study found increased rates of normal vaginal birth (57.7% vs. 48.9% p = 0.002) and spontaneous vaginal birth (38% vs. 22.4% p = <0.001) and decreased rates of instrumental birth (23.5% vs. 28.5% p = 0.050) and caesarean sections (18.8% vs. 22.5% p = 0.115) in the midwifery continuity cohort. There were also fewer interventions in this group. No differences were found in neonatal outcomes.ConclusionStrategies for reducing caesarean section rates and interventions in childbirth should focus on primiparous women as a priority. This study demonstrates the effectiveness of continuity midwifery models, suggesting that this is an important strategy for improving outcomes in this population.     

Too Many Rationales,Not Enough Reason: A Call to Examine the Goals of Including Lay Members on Institutional Review Boards

Every major U.S. commission appointed to review Institutional Review Boards (IRBs) as well as numerous reports and scholarly articles have recommended increasing the number of lay (nonscientist and unaffiliated) members on IRBs. Meanwhile, qualitative studies have shown that lay IRB members experience confusion about their roles, including ambiguity whether their roles are different from other members of the board. Without articulating the unique reasons why unaffiliated and nonscientist members are needed, IRBs have little guidance on how to recruit and train these members, and how many should be at the table. By looking back through the history of IRB regulations, policies, and commentaries we can articulate unique contributions these members can make. Only with these contributions in mind can we make arguments for how to best achieve them and make the case that increasing their numbers is necessary.