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1.
ABSTRACT

Annual net cash returns and net capital gains provide farmers with their actual and potential monetary rewards, respectively. This article reports on a national farm survey showing both actual and potential returns, on average, are not as high as might be imagined. This is supported by the findings of earlier studies and has implications for rural societies and their associated economies. Data on income, expenses and profit is presented as is data on farm value changes over the life of each farm. The information is adjusted for inflation to provide ‘real’ data. The profit and net capital gain figures are divided into groupings based on a range of criteria such as total farm capital, and labour compliment as a reflection of farm size. Statistically significant differences occur for some groupings such as farm type and farm size.  相似文献   
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This paper deals with models and methods for count data derived from observations on pairing phenomena. Pairs formed from “similar” members are excluded. Various models are considered and analyzed. Particular emphasis is on developing methods for testing whether particular pairs are prone to occur more or less often than expected by chance.  相似文献   
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“小产权房”应理性看待和恰当解决   总被引:2,自引:0,他引:2  
“小产权房”问题的产生既有历史原因也有现实原因,目前在关于“小产权房”地位的论争中存在两种截然相反的观点。对“小产权房”的合法化不应一概反对,应具体分析,恰当处理与疏导“小产权房”问题,从农村内部、城市内部和城乡一体化发展中寻求解决途径。  相似文献   
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农业行政执法正逐步成为一项重要的农业行政职能 ,农业行政综合执法是我国农业行政执法体制改革中产生的新生事物 ,在实践中受到各方利益群体的质疑。本文以我国行政体制改革是行政边界和行政组织边界的双重边界重构为理论基础 ,研究归纳出我国农业行政执法的三种理论模型 ,并阐述了模型形成的依据和模型的替代顺序 ,认为综合执法是我国现阶段提高农业行政执法效率切实可行的选择 ,从长远来看也可能是一种过渡形式。  相似文献   
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To examine children's ability to control their affective expression facially, 68 second- and fourth-grade boys and girls were unobtrusively videotaped while discussing six self-chosen activities about which they felt positively, neutrally, or negatively. Children then performed three facial management tasks: (a)inhibition (showing no emotion instead of a felt emotion); (b)simulation (showing an emotion when not feeling anything); and (c)masking (showing an emotion that is different than what is felt). Twelve raters judged the edited tapes of the children's performance for affect positivity and deceptiveness. Repeated measures ANOVAs indicated, in contrast to previous research, that children were highly competent in managing facial displays. To understand children's techniques for managing affective displays, two raters categorized the primary cognitive strategies children used. Results showed that fourth graders used more complex strategies more often than second graders. These results highlight children's skill and strategies in affect management.Funding for this project was provided by a NICHHD grant (#HD22367) to the first author. We gratefully acknowledge the assistance of Nancy A. Ballard and Michael G. Rakouskas in data collection and preparation. We also thank the children whose participation and cooperation made this research possible.  相似文献   
8.
Evidence suggests there is increasing use of computers by children and poor workstation designs for children. This laboratory study investigated the effect of adjusting computer display height and desk height on upper quadrant posture and muscle activity. Thirty three children aged 4-17 years worked on a desktop computer at a standard school workstation and at a workstation adjusted to the individual, typically consisting of a lower display and desk height. The adjustments resulted in increased head tilt, neck flexion, gaze angle, cervical erector spinae activity and a trend for lower right upper trapezius activity. The recent evidence that suggests more head and neck flexion is not necessarily worse is discussed and normative values for children's head tilt and neck flexion presented. The role of forearm support in decreasing trapezius activity is also discussed.  相似文献   
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新闻报道的空间建构是新闻报道有效叙事之重点环节,聚焦于现场的报道,是一种立足于深刻认知新闻现场和现场新闻之内在关联的选择性重构,现场既代表新闻报道的语境与情境还原,同时也是实现传受双方互动理解的一种审美超越。现场的报道空间建构不仅体现出新闻报道的时效要求对叙事策略选择的必然,更通过叙事设计的结构化、进入化策略来实践传受双方知觉场的共建,尤其在当代新媒体环境下,新闻报道的空间叙事策略将伴随社会空间的心灵感知而不断创新发展。重视并有效发掘、应用那些能够激发受众感知的想象力的空间要素,才是新闻报道未来创新的方向,空间的重构也绝非是媒介技术提供的拟态逼真,而是构建合乎受众认知需求与审美体验的空间实践,是叙事的社会参与,也是其心灵对话空间的共建。  相似文献   
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