Job tenure as a moderator of stressor-strain relations: A comparison of experienced and new-start teachers

Few studies have investigated the extent to which the effects of work stressors on strain change over the duration of employees' job incumbencies. Drawing on Karasek's (1979) job demands-control-support model, the current study examined the moderating influence of job tenure (experienced versus novice worker status) on stressor-strain relations. Using a sample of 422 experienced and 248 beginning schoolteachers in Australia, job factors and job strain were assessed on two occasions, 8 months apart. Analyses revealed that the three job factors were each correlated with strain as predicted, although the (elusive) demands×control interaction effect was evidenced amongst “new-start” teachers only. The findings provide mixed support for Karasek's model, and draw attention to the need to consider the role of job tenure and career stage in studies of work stress, as work stressor-strain effects may be routinely underestimated in research that ignores these factors.     

农产品销量预测的支持向量机方法

运用支持向量机(Support Vector Machine,SVM)智能预测方法对农产品的消费市场需求进行动态预测。为提高农产品销量预测精度,充分考虑了农产品供需随天气变化、气候条件、节假日等因素的影响而动态变化的情况,将这些影响因素纳入农产品销量预测中,运用模糊理论进行模糊化处理;在此基础上提出以支持向量机方法为主、多方法融合为辅的智能预测系统,对农产品销量进行动态预测。实际算例验证了这一智能预测系统的精确性。     

从社会阶层分化看职业群体生命教育的紧迫性

由于社会的不公正容易使人们产生消极的生命情感，贫富差距的拉大容易使人们轻视生命价值的追求，竞争的激烈容易使人们降低生命的质量，因此，针对社会阶层分化而进行的生命教育显得迫在眉睫。     

民办高等教育发展舆论支持的原则探析

民办高等教育的发展需要舆论支持。但不管哪个层面舆论的引导或调控,必须坚持和遵循一系列目标和原则,即正面宣传和正确引导原则、相信群众和依靠群众原则以及辩证原则。     

论匈奴分裂前与周边民族的关系

匈奴与周边各民族的关系复杂多变，既有联合也有冲突。匈奴以武力降服和役使各族，还以和亲、反间、招降纳叛、扶植傀儡等手段笼络和控制各族势力以联合对付汉王朝。在匈奴长期压迫和奴役下，各民族政权对匈奴时叛时附，甚至强烈反击。     

一种脱机手写体汉字识别的容错编码方法研究

手写体汉字识别是字符识别领域中的难点。为了使机器识别汉字适应于手写体汉字的变形等因素,基于人类认识汉字的容错机理,提出了一种用于机器识字的汉字容错编码方法,以提高手写体汉字识别率。该编码方法首先对横竖撇捺笔划形态给出了模糊化表示;然后定义了仿人拆字的字元集,并给出了易混淆笔划字元的多归类容错编码;接着给出了笔划字元的顺序判断规则和归结了36类简单常用字的部首子结构,并给出冗余的容错编码;进而建立了仿人构字的汉字编码规则和具有容错性的多模板字典,并对《新华字典》中收录的10000余个单字汉字进行了标准编码,重码率为0.48%;最后对HCCORG和NKIM手写体汉字库中的100个手写体汉字进行了仿真识别,识别正确率为96%。试验结果表明,这种编码方法可生成多模板字典,不仅对手写体汉字变形具有较好的容错性,且重码率和误识率较低。     

当代城乡居民的生活结构

把一个人拥有的社会关系和参与的社会团体作为生活结构的构成要素,来考察城乡居民的生活结构,可以发现:越是农村特征显著的地区,居民的生活越依赖于非正规性社会关系;城乡居民都没有积极地参与社会团体,生活结构主要由以亲戚、邻居为主的非正规性社会关系构成;城市居民因形成的社会关系少,又没有积极地参与社会团体,因此与社会结构的结合相对松弛一些;城乡居民拥有的社会关系和参与的社会团体因个人社会特征而不同。这种差异是由于社会结构的变动在城乡间、宏观层面和微观层面、物质领域和意识领域不同步,以及城乡居民在社会结构中的不同位置而引起的。     

以科技创新为支撑发展漳州现代农业

科技进步是第一生产力,农业科技进步是突破资源和市场对农业双重制约的根本出路。为此,本文以漳州农业科技创新为研究对象,分析其现状及存在的主要问题,并从农业科技创新主体的角度,提出促进农业科技创新的对策建议。     

What parents value from formal support services in the context of identified child abuse

Parents whose children are identified as having experienced or being at risk of experiencing significant harm potentially provide an invaluable dimension to our understanding of the circumstances that result in child abuse or neglect and how best to respond to these invariably complex situations. This paper reports findings from a study of the experiences of six parents.
In-depth interviews were conducted with four mothers and two fathers who had been referred to an intensive family support service by the Queensland statutory child protection authority. Using a critical ecological perspective, the study focused on identifying and understanding the experiences of the parents in using formal family support services, including aspects of service delivery that were helpful or unhelpful. Parents also commented on their experiences of statutory child protection services.
Service components and worker qualities that parents identified as being helpful included being accessible, targeted and integrated and being able to meet a continuum of needs, from a micro to a broader level. Their reports provide invaluable insight into how formal family support services, including child protection services, can better meet the needs of parents in addressing the recurring problem of child maltreatment.     

财政支农资金管理体制变迁研究述评

中国财政支农资金管理体制是中国农村经济体制和中国财政管理体制的一个组成部分，财政支农资金管理体制的变迁和整个经济管理体制、财政管理体制的变动有着密切的关系。本文结合中国财政管理体制和经济管理体制的变动，通过分析中国财政支农资金管理体制变迁的历程，找出其变迁中存在的特点，并为中国财政支农资金管理体制改革的方向提出政策性建议。