浅述碱-骨料反应对混凝土耐久性的影响及预防措施     

楚秋霞 《邢台职业技术学院学报》2011,28(1):99-100,103

碱骨料反应对混凝土耐久性有极大的危害,本文就碱骨料反应的机理、产生条件、破坏特征、骨料碱活性的测定和如何预防进行了阐述。  相似文献   

玉竹根腐病的发生与防治     

邹坤  陈勇 《娄底师专学报》2011,(2):82-83

在玉竹的栽培生产中,病害大量发生,其中最为严重的是根腐病。玉竹根腐病是由镰刀菌引起的一类土传病害,近年在湖南、广东老栽培区域有逐年加重的趋势。分析其危害症状和发生特点,可对其采取合理轮作、栽培措施防治、土壤消毒、药剂防治等综合防治措施,以促进玉竹的产量和品质。  相似文献   

风险社会下我国刑法理论的调整     

胡莎 《广东广播电视大学学报》2011,20(2):82-86

为了更好地应对风险社会给我国带来的挑战,应对刑法理论进行调整,即刑法体系由罪责刑法向安全刑法转变,刑法机能应以保护社会为主、保障人权为辅,刑罚价值观的侧重点应是秩序而不是自由。  相似文献   

乒乓球运动中常见的运动损伤及预防措施     

袁辉 《雁北师范学院学报》2011,27(4)

通过问卷调查法对参加乒乓球运动训练的高校专修学生和体校运动员进行乒乓球运动损伤的调查,找出乒乓球运动中常见的运动损伤,并从生物力学、解剖学方面,对在乒乓球运动中引起损伤的原因进行分析,提出了一系列预防运动损伤的相应措施,希望能对乒乓球的教学和训练有所帮助。  相似文献   

沈阳市房地产市场的预测与预警   总被引：1，自引：0，他引：1  

张雷 《牡丹江教育学院学报》2011,(5):161-163

近年来,沈阳房地产市场结构基本合理,供求基本平衡,房价运行基本稳定,被业界认为是最健康、最具活力的市场,特别是从2010年起,频繁调控接踵而来,但对沈阳房地产市场的影响甚微。为了沈阳房地产市场更稳健地发展,有必要了解沈阳房地产未来的需求状况以及建立起一套有效的房地市场预警体系,这样才能及时发现潜在的问题。本文主要从定量角度来探讨这两个问题,希望能对政府制定政策和开发商投资有一定的参考意义。  相似文献   

OPGW光缆断股的分析及处理     

岳江 《太原大学学报》2011,12(4):138-139,142

通过一起OPGW光缆外层绞线断股现象,分析了其形成的机理和产生的原因,得出了外层采用铝合金单丝时在雷击情况下易产生外层断股的结论,并从设计、施工、运行等方面提出了具体的防范措施。  相似文献   

The association between perceived injunctive norms toward corporal punishment,parenting support,and risk for child physical abuse     

《Child abuse & neglect》2019

The use of corporal punishment (CP) is a strong risk factor for many poor outcomes for children including child maltreatment. The use of CP occurs within social contexts which are important to understand. Although it is known that perceived social norms regarding CP are related to its use, the specific role that a mother’s primary support person plays in influencing attitudes toward and use of CP remains unknown. The current study assessed linkages between maternal perceived social support in parenting and perceived injunctive norms of CP from her primary source of support, with maternal attitudes toward and use of CP. Survey data were collected from female primary caregivers (N = 436) of children age 2 to 7 years (mean age = 3.7) enrolled in Special Supplemental Nutrition Program for Women, Infants and Children (WIC) clinics in Southeastern Louisiana. Most frequently, the biological father of the child (37.9%) and the maternal grandmother of the child (24.2%) were identified as the participant’s primary source of social support in parenting. Perceived injunctive norms of this support person toward CP use were significantly and positively associated with attitudes toward, AOR = 5.97, 95% CI = [4.04, 8.82], and use of CP, AOR = 3.77, 95% CI = [2.55, 5.59]. However, perceived social support was not associated with these outcomes and also did not moderate these associations. Findings suggest that efforts to reduce maternal risk for child physical abuse and use of CP must include the mother’s primary source of social support if they are to be successful.  相似文献   

Child protection cases,one size fits all? Cluster analyses of risk and protective factors     

《Child abuse & neglect》2019

BackgroundTo provide effective tailor made case management in Child Protection Services (CPS) a insight is needed into the specific characteristics of the target group. Using the ecological perspective of maltreatment, this study explored poorly known characteristics of the CPS population.ObjectiveTo distinguish CPS subgroups based on risk and protective factors enables tailor made case management that fits the specific needs of these subgroups.Participants and settingWe studied 250 Dutch CPS cases of family supervision by court order that had completed the LIRIK and Action Plan checklists in August 2014–March 2015.MethodsThis quantitative study analyzed risk and protective factors for children and parents reported in client files. Subgroups were identified by two-step cluster analyses. Chi-square analyses identified relations between parental risk subgroups and other groups.ResultsBuilding on the interplay between risk and protective factors on the levels of child, parent and environment, we found five distinct subgroups in the CPS population. The most vulnerable is parents with multiple problems (31%) or socio-economic problems (13%). Parts of both subgroup have limited protective factors. Parents with major life events (16%) or poor parenting (13%) are characterized by single-level problems. One subgroup (28%), the unaccepted, has no parental risk factors registered.ConclusionsStudying client files can lead to a better understanding of the healthcare needs of the CPS population. To develop and implement more effective case management requires constant dialogue between science, policy, and the experiences of both clients and professional.  相似文献   

Constellations of risk factors as moderators of the impact of a randomized intervention on students’ reading skills in rural India     

《Studies in Educational Evaluation》2019

Individual, family and community risk factors might determine the success or failure of educational interventions. The study is a secondary analysis, aimed at identifying distinctive constellations of risk for educational attainment, and at exploring whether membership to these constellations moderated the impact of a cluster-randomized reading intervention in rural India. By means of latent profile analysis, four constellations of risk were identified based on individual and family risk-factors. Multilevel cumulative logit models confirmed that the intervention had a positive impact on the outcome, and revealed that profile membership did not moderate the effect of the intervention. However more nuanced analysis showed that the intervention worked differently for children with different risk-profiles depending on contextual factors.  相似文献   

千阳县山洪灾害防治非工程措施初探     

景琰侠  张华 《杨凌职业技术学院学报》2011,10(3):63-65

根据千阳县的实际情况,提出了建立监测预警设施、监测预警平台、防御转移预案、组织责任体系、宣传培训演练等非工程措施,实现预警及时、反映迅速、转移快捷、避险有效,全面提高山洪灾害防御水平。  相似文献