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介绍了在C语言程序设计过程中内存和变量的关系,对集中内存的分区进行了说明,然后分析了内存泄漏的原因,并提出了相应的预防措施. 相似文献
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BackgroundEarly adversity and negative experiences in the adoptive family can put adopted children at risk for emotional and behavior problems.ObjectiveThis study analyzes the influence of children’s preadoptive history and adoptive parents’ characteristics on the psychosocial adjustment of nationally and internationally adopted children in Germany.Participants and settingThe survey included 172 adopted children aged between 24 and 145 months and their adoptive parents.MethodsParents provided information about preadoptive history. Information about emotional and behavior problems was obtained from the parental version of the Strengths and Difficulties Questionnaire (SDQ). Parental well-being was obtained through a composite score of three standardized measures (self-efficacy questionnaire, Perceived Stress Scale PSS-4, Brief Symptom Inventory BSI); parenting behavior was assessed with the Alabama Parenting Questionnaire (DEAPQ).Results12.5% of the adopted children scored in the clinical range of the SDQ. In a multiple regression analysis, the experience of maltreatment and neglect was the most important predictor of emotional and behavior problems at time of assessment, followed by pre- and perinatal risk and parental stress regulation difficulties, R² = .423, F(4, 128) = 28.539. Increases in the number of risk factors present were associated with a greater odd of children scoring in the clinical range of the SDQ.ConclusionsMost of the nationally and internationally adopted children in this sample were well-adjusted. Prenatal and preadoptive risk as well as stress regulation capacities of the main caregiver contributed to the child’s development. An accumulation of risks increased the likelihood of adjustment problems in adopted children. 相似文献
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This study examined differences in offending behavior and psychosocial problems between juvenile offenders who have been sexually abused (n = 231), physically abused (n = 1,568), neglected (n = 1,555), exposed to multiple forms of maltreatment (n = 1,767), and non-victims (n = 8,492). In addition, the moderating effect of gender in the association between type of maltreatment and offending behavior/psychosocial problems was examined. Results showed that violent offenses were more common in victims of physical abuse and victims of multiple forms of abuse than in non-victims, both in boys and girls. In boys, sexual offenses were far more common in victims of sexual abuse than in victims of other or multiple forms of maltreatment or in non-victims. In girls, no group differences were found in sexual offending behavior. For both boys and girls, externalizing problems were relatively common in victims of physical abuse and neglect whereas internalizing problems were relatively common in victims of sexual abuse. In victims of multiple forms of maltreatment, both internalizing and externalizing problems were relatively common. Implications for clinical practice are discussed. 相似文献
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余思慧 《湖南民族职业学院学报》2007,(4)
创造力包含创造的灵感和创造的实施,在艺术设计中起着举足轻重的作用,个性变量、动机变量、社会变量是影响艺术设计中创造力的三大因素,只有充分发挥变量的积极作用,才能使创造力在艺术设计中释放更大的能量。 相似文献
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目前国内对高新区绩效的研究存在评价目标单一、评价内容模糊不清的问题.为有效评价我国高新区绩效水平,基于高新区的"高新技术"和"政府引导"两个基本内涵和多元化的功能定位,以37个国家高新区为例,运用三阶段数据包络分析(DEA)模型测算其剔除环境和随机误差前后的综合效率、纯技术效率、规模效率以及规模报酬.结果表明:我国高新区整体绩效水平良好,而高新区综合效率无效的原因主要来源于规模效率无效;运用传统DEA模型测算存在纯技术效率被低估、规模效率被高估且被低估程度大于被高估程度的问题;对于高新区绩效,市场开放程度、宏观经济情况的影响为正,而产业结构、政策支持的影响为负.为进一步优化我国高新区资源配置,提出政府有关管理部门应当重视营造良好环境,对高新区的发展科学统筹规划,并加强引导和协调等政策建议. 相似文献
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Mark L. Berenson 《Decision Sciences Journal of Innovative Education》2013,11(3):243-262
There is consensus in the statistical literature that severe departures from its assumptions invalidate the use of regression modeling for purposes of inference. The assumptions of regression modeling are usually evaluated subjectively through visual, graphic displays in a residual analysis but such an approach, taken alone, may be insufficient for assessing the appropriateness of the fitted model. Here, an easy‐to‐use test of the assumption of equal variance (i.e., homoscedasticity) as well as model specification is provided. Given the importance of the equal‐variance assumption (i.e., if uncorrected, severe violations preclude the use of statistical inference and moderate violations result in a loss of statistical power) and given the fact that, if uncorrected, a misspecified or underspecified model could invalidate an entire study, the test developed by Halbert White in 1980 is recommended for supplementing a graphic residual analysis when teaching regression modeling to business students at both the undergraduate and graduate levels. Using this confirmatory approach to supplement a traditional residual analysis has value because students often find that graphic displays are too subjective for determining what constitutes severe from moderate departures from the equal variance assumption or for assessing patterns in plots that might indicate model misspecification or underspecification. 相似文献
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Audrey M. Pottinger Angela Gordon Stair Sharon Williams Brown 《International journal for the advancement of counseling》2008,30(1):15-24
This paper presents research findings on childrens’ responses to migratory separation and later reunion in Caribbean families
and the needs of these families when parents migrate and leave their children behind. Implications of this type of separation
on children, parents and surrogate caregivers are discussed. The challenges that counsellors in both the ‘sending’ and host
countries face working with this population are also examined and suggestions made for psychosocial intervention and guidelines
for counselling in both societies. The need for culturally competent counsellors to work with the growing population of immigrants
in North America and Europe is indicated. 相似文献
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证明了几个复变量空间Cn中著名的Bochner-Martinelli核的二个再生定理。设 表示超球面，则有，称为Bochner-Martinelli核的一个再生性质。设，,则为Bochner-Martinelli核的另一再生性质。二个再生定理在研究多复变数哥西型积分中有重要作用。 相似文献