基于ESI数据的高校优势学科实证分析     

衣春波  许鑫 《数字图书馆论坛》2020,(1):47-54

长三角一体化战略为长三角的"双一流"高校发展提供了重大历史机遇。本研究在"双一流"和长三角一体化背景下,对长三角8所"双一流"高校从优势学科分布与潜力学科建设进行研究。首先,采用文献计量方法,以ESI数据为基础,对8所高校的优势学科分布情况进行分析;其次,通过学科比重方法和学科潜力指标方法,并结合长三角一体化发展需求以及8所"双一流"高校学科发展需要,探讨各个高校应着力打造和重点培育的潜力学科;最后,结合8所高校已有的优势学科和需要重点发展的潜力学科提出形成系列学科集群、建立学科联盟、特色发展的建议。  相似文献   

Potential production simulation and optimal nutrient management of two hybrid rice varieties in Jinhua,Zhejiang Province,China     

Xie WX  Wang GH  Zhang QC 《Journal of Zhejiang University. Science. B》2007,8(7):486-492

Potential growth of two widely-grown hybrid rice varieties in the Jinhua district of Zhejiang Province, Shanyou63 for mid-rice and Xieyou46 for late rice, was simulated using a crop growth model of WOFOST. Parameters of the rice growth in WOFOST were calibrated through field experiments from 1999 to 2002 in Jinhua. The potential yield simulated with WOFOST was about 12 t/ha for Shanyou63 and 10 t/ha for Xieyou46, which are in good agreement with the highest recorded yield obtained in this area. Under farmers practice, current yield is about 7.5 t/ha for Shanyou63 and 6.5 t/ha for Xieyou46. There is a gap between the actual rice yield and the potential yield for these two hybrid rice varieties grown in this area. The attainable target yields were set to 70% to 75% of their potential yields for the two varieties. A recently developed software ＂Nutrient Decision Support System （NuDSS）＂ for irrigated rice was used to optimize nutrient management for these two rice varieties. According to NuDSS, the optimal fertilizer N requirement for the target yields was about 150 kg/ha for Shanyou63 and about 120 kg/ha for Xieyou46, which were only about 70% of the fertilizer N application under current farmers＇ practice. Comparing with farmers＇ practice, there is great potential to increase actual rice yields and to reduce fertilizer N use rates by improving rice crop management practice in Jinhua.  相似文献   

以色列的中介学习经验理论及其应用     

张丽锦  张莉 《外国教育研究》2011,(6)

二战后,为满足以色列儿童心理成长和能力促进的实际需要,以弗厄斯坦为代表的以色列教育学家和认知心理学家提出了中介学习经验理论并将之应用于教育实践。该理论从教授者与学习者间交互作用的视角看待学习者的认知发展与学习,主张个体的认知结构是一个开放的系统,教授者在中介学习过程中可采用多种有益的中介策略指导和训练儿童,以促进他们认知能力的提高和认知结构的改善,并推动其学习潜能的实现。该理论的实践应用包括:1)构建学习潜能评估工具,用它评价个体认知能力的改变,诊断个体的认知缺陷;2)设立工具强化程序并施之于教学中以巩固儿童已改变的认知结构。中介学习经验理论对于在测评和教学中动态把握和促进巩固儿童的潜能发展具有重要意义。  相似文献   

Parents’ PTSD symptoms and child abuse potential during the perinatal period: Direct associations and mediation via relationship conflict     

《Child abuse & neglect》2019

BackgroundPosttraumatic stress disorder (PTSD) symptoms are associated with parental aggression towards children, but little is known about the relation between parents’ PTSD symptoms and their risk for perpetrating child physical abuse during the early parenting years, when the potential for prevention of abuse may be highest.ObjectiveTo examine direct associations between mothers’ and fathers’ PTSD symptoms and child abuse potential, as well as indirect effects through couple relationship adjustment (i.e., conflict and love) in a high-risk sample of parents during the perinatal period, most of whom were first-time parents.Participants and settingFrom March 2013 to August 2016, data were collected from 150 expecting or new parental dyads in which the mother was participating in a home visiting program.MethodsData were analyzed using the Actor-Partner Interdependence Mediation Model.ResultsFor mothers and fathers, there were direct associations between PTSD symptom severity and child abuse potential (βs = .51, ps <.001), and this association for fathers was stronger at higher levels of mothers’ PTSD symptoms (β = .15, p = .03). In addition, parents’ own and their partners’ PTSD symptoms were each indirectly associated with parents’ own child abuse potential through parents’ report of interparental conflict (standardized indirect effects = .052–.069, ps = .004) but not love.ConclusionsAddressing parents’ PTSD symptoms and relationship conflict during the perinatal period using both systemic and developmental perspectives may uniquely serve to decrease the risk of child physical abuse and its myriad adverse consequences.  相似文献   

The moderating effect of regulatory focus in the relationship between potential flexibility and practical flexibility     

《Contemporary educational psychology》2019

  相似文献   

论我国2008年奥运会潜优势项目的确定与超常规发展策略   总被引：3，自引：0，他引：3  

田麦久  石岩  黄竹杭  许小冬  蔡睿 《北京体育大学学报》2007,30(12):1585-1592

我国奥运优势项目和潜优势项目的研究经历了概念的提出、界定标准的建立、具体项目的认定等过程,通过对2008年奥运会我国项目实力水平的评定与优势、潜优势项目的确定,提出我国奥运会潜优势项目超常规发展策略:1)提供政策保障的"环境优化策略";2)优势项目带动潜优势项目发展的"双赢策略";3)投入倾斜、重点布局的"偏食策略";4)进一步突出女子项目优势的"凤飞策略";5)打破固定程序的"催化策略";6)聚合人力资源、优选优训的"人才支前策略".  相似文献   

APF方法在船舶自动避碰中的应用     

张鸣鸣  施朝健 《上海海事大学学报》2007,28(1):126-131

提出一种改进的人工势场(Artificial Potential Field,APF)方法,将船舶的速度和操纵特性引入到模型的引力和斥力函数中,用于实现船舶自动避碰.讨论APF中的局部最小点问题,并提出解决方法.  相似文献   

飘球原理归结及其潜在威力之分析   总被引：3，自引：0，他引：3  

许浒 《中国体育科技》1997,(Z2)

本文以排球新规则有关发球条文为依据，运用流体力学原理，根据风洞实验、自由落体实验的结论与数据，对飘球的原理及特点进行了深入的探讨分析，揭示了现阶段挖掘飘球潜在威力的可行性与现实性。  相似文献   

基于势科学角度的网络新兴产业集聚机制与路径研究     

张向阳  张红利  罗胜 《科技管理研究》2015,(16)

势科学是研究系统论、信息论、创新论及其他社会科学的新兴理论之一。虚拟的网络空间具有"差别最大化,而联系最紧密"等特点,因而拥有最大的"信息势";以IT科技、电子商务、云智慧为代表的网络新兴产业集聚模式符合"势增"驱动机制;构建信息人社会环境下网络新兴产业集聚要素模型,凝练出吸引力、管理力、创新力、转化力、资本力及辐射力6项关键要素,并依托势科学的"成群"原理分析网络新兴产业向数字化、网络化、云智慧等逐步演进的"园区集聚"发展路径。  相似文献   

陕北黄土高原土地生产力与人口适宜容量研究     

戴进 《资源科学》1997,19(6):10-18

陕北黄土高原土地生产力及人口容量研究是关系到该地区今后如何发展的重要问题。本文在划分陕北为3个农业生态区基础上，提出了一套简洁而实用的土地分类方案对应产量估算模式，进行区域土地生产潜力和人口容量分析。指出了陕北人地关系的基本态势和调控策略。  相似文献