农业产业结构调整的风险识别与协整分析——以安徽省为例

利用1978-2008年安徽省农业经济发展数据,选取若干代表性变量,采取因果关系检验和长期动态的协整分析,研究了农业产业结构调整的风险识别以及长期的均衡发展关系。结论认为,安徽省农业结构的调整始终面临自然风险,一定程度的结构调整还会加剧农业的自然风险,同时也存在着农业技术风险,而且有关风险之间产生相互波及的影响,但目前还不能识别出农产品市场风险。长期来看,主要农业风险对农业结构调整存在着Pareto改进的余地。     

传统理论中对攻击性研究综述

攻击是儿童、青少年中一种比较常见的不良的社会行为,对此学界已有较多研究。综述传统理论研究中攻击性的界定、类型、影响因素,相关理论基础四个方面,不但可以清晰展现已有的研究成果,而且能够对未来的发展趋势进行预测。     

赛场观众语言攻击行为的动因分析和对策研究

语言攻击现象已经普遍存在于体育赛场上,与体育的人文理念相违背。文章对赛场观众的语言攻击行为的动因进行分析,并提出相应的预防措施。     

蒙古西征下的伊斯兰世界——试论13世纪伊斯兰教的发展

1206年成吉思汗统一蒙古后,新兴的蒙古帝国先后发动三次西征。蒙古的西征一直打到地中海沿岸,其对伊斯兰世界的破坏可以说是毁灭性的。在蒙古军的暴力破坏下,短短数年一大批城市变成废墟,同时伊斯兰的哈里发教廷亦遭摧毁。然而,在伊斯兰教临近灭亡的边缘时,却得以奇迹般地生存下来,并开始了新一轮的发展,蒙古人建立的察合台汗国、伊尔汗国、金帐汗国纷纷伊斯兰化,同时,伊斯兰教在中国亦得到长足发展。整个13世纪可以说是伊斯兰教在其历史中的一个转折点。     

原始社会神与人关系初探

神是由人所创造出来的,神是人心理的投射,是人类天性的自然流露,反映的是原初人类自身的状况;神话契合着原初人类的思维方式,成为推动人类自身和社会发展的巨大动力。     

关怀型德育师生关系的建构——诺丁斯关怀德育模式的启示

本文从对诺丁斯关怀德育模式的本质、特点的解读入手,分析了其有关德育师生关系的思想及对我国德育工作的启示。     

未成年人的攻击行为研究综述

未成年人的攻击行为因其巨大的危害性越来越受到心理学研究者的广泛关注，本文从攻击行为的概念、攻击行为最新的测评方法和统计软件、影响攻击行为的生理、心理及环境因素和对攻击行为的干预四个方面，总结了近几年关于攻击行为的研究成果，通过本文使人可以进一步了解攻击行为研究的现状。     

Behaviour and misbehaviour of Latino children in a time of zero tolerance: mothers' views

Thirty‐eight Latin American mothers with young children tell of their perceptions of school discipline and comportment issues and talk of their children's encounters with ‘zero tolerance’ legislation, and related rules for conduct, implemented by the local school boards. The purpose of this exploratory study is to understand: (a) parents' views of and concern about disciplinary practices at school; (b) parents' ideas about the connection between home and school discipline; and (c) parents' understanding of the officially prescribed consequences of behaviour identified as non‐tolerable. Implications of the findings are discussed with regard to professional practice.     

Parenting and childhood aggression in the Chinese context: an examination of parental responses,physical coercion and warmth

Parental response, physical coercion and warmth and their relationships with childhood aggression were assessed with 277 children (142 boys; M age = 56.5 months, SD = 10.93 months) in Hong Kong. Results indicated that both fathers and mothers reported significantly more intervention strategies in response to hypothetical vignettes of physical aggression than relational aggression. Both fathers’ and mothers’ self-reported physical coercion was positively correlated with boys’ and girls’ composite scores of physical and relational aggression as reported by teachers, fathers and mothers, whereas fathers’ self-reported warmth was associated with a lower level of physical and relational aggression in boys. Furthermore, maternal warmth moderated the association between physical coercion and girls’ relational aggression. Findings suggest that parents’ normative beliefs regarding relational aggression should be challenged and the general acceptability of parental control in the Chinese context does not necessarily imply the absence of a link with childhood aggression.     

借助复合关系图求复合函数偏导数

本通过借助复合关系图来进行求复合函数的偏导数，这种方法可使我们快速而准确地解决复合函数的偏导数问题．