企业自有资金与借入资金结构研究

在市场经济条件下,企业倾向于大量借入资金以获得更高的投资利润率。本文分析了企业该行为的利弊,并提出了量化模型。该模型表明企业自有资金与风险之间的关系,偿试从宏观角度来确定企业负债的比率。     

Risk terrain modeling predicts child maltreatment

As indicated by research on the long-term effects of adverse childhood experiences (ACEs), maltreatment has far-reaching consequences for affected children. Effective prevention measures have been elusive, partly due to difficulty in identifying vulnerable children before they are harmed. This study employs Risk Terrain Modeling (RTM), an analysis of the cumulative effect of environmental factors thought to be conducive for child maltreatment, to create a highly accurate prediction model for future substantiated child maltreatment cases in the City of Fort Worth, Texas. The model is superior to commonly used hotspot predictions and more beneficial in aiding prevention efforts in a number of ways: 1) it identifies the highest risk areas for future instances of child maltreatment with improved precision and accuracy; 2) it aids the prioritization of risk-mitigating efforts by informing about the relative importance of the most significant contributing risk factors; 3) since predictions are modeled as a function of easily obtainable data, practitioners do not have to undergo the difficult process of obtaining official child maltreatment data to apply it; 4) the inclusion of a multitude of environmental risk factors creates a more robust model with higher predictive validity; and, 5) the model does not rely on a retrospective examination of past instances of child maltreatment, but adapts predictions to changing environmental conditions. The present study introduces and examines the predictive power of this new tool to aid prevention efforts seeking to improve the safety, health, and wellbeing of vulnerable children.     

高职生校园心理压力的调查与分析

心理压力问题是现代社会中人们十分关注的问题，高职生校园心理压力是指当代高职生在校期间所面临的各方面的心理压力，其中主要包括学习压力、就业压力、经济压力、感情压力、人际交往的压力这五种形式。文章在对江西省昌北地区五所高校的高职生采用问卷调查的同时借助学校的图书馆资源查阅了相关文献，对高职生校园心理压力进行成因分析，提出解决高职生校园心理压力的几点可行性建议。     

中国古代息讼思想探源

中国古代息讼思想源于春秋战国,形成于汉代。儒、道、法三家的息讼思想及其传播是中国古代息讼思想之源。家国一体的社会结构,农业经济对劳动力的过度需求,是息讼思想产生的社会和经济根源。统治者对教化的推崇,对礼让止讼的赞许,是息讼思想形成的政治根源。诉讼结果的不确定性是息讼思想产生的内在根源。     

建立我国竞技体育多元投资渠道的必要性和可行性分析

竞技体育的政府一元投资已经越来越不适应市场经济的发展要求和竞技体育自身发展的需要.竞技体育资金来源的问题是涉及到竞技体育可持续发展的重大问题,我国竞技体育的资金来源多元化是体育社会化的发展方向,是体育产业化的发展要求.随着我国经济实力的日益增强,竞技体育产业化进程的加快等因素,我国的竞技体育多元投资格局将逐渐形成.     

基于PSB的高频开关电源的仿真分析

分析了采用Buck变换器的PWM控制的开关电源的仿真问题,并利用PSB建立了一个离散的、非线性开关电源模型。通过在仿真模型中修改电路参数,可方便地进行系统的优化设计,而且可以部分地替代硬件实验,极大提高开发效率。     

Running into trouble: constructions of danger and risk in girls' access to outdoor space and physical activity

This paper considers girls' participation in running and other outdoor physical activities in their local areas in London, UK. The paper is concerned with the operation of risk discourses in and around this participation and looks at the way that such discourses impacted on girls' opportunities to take part in physical activities that required outdoor space. Drawing on data from longitudinal research into girls' participation in sport and physical activity, the findings suggested that girls, in particular, were subject to risk discourses around their participation in physical activities which constructed the girls as ‘weak’, and ‘vulnerable’. I look at the ways in which girls understood these messages and how they came to define certain spaces and activities as either ‘safe’ or ‘unsafe’. I look in particular at how girls were able to resist certain constructions of their embodied physical capacities and also at the ways in which this was constrained by specific incidences of sexual harassment.     

清江源头Streeter-Phelps模型分析

本文以清江源头为研究对象,利用室内碘量法实验获得针对清江源头附近的Streeter-Phelps模型的耗氧系数以及复氧系数,得到清江源头附近河段的氧垂曲线,根据曲线求得极限溶解氧、极限氧亏、极限距离,预测河水含氧量的变化。     

试析供电企业管理中的法律风险及防范措施

供电企业服务于公众事业,在营运过程中承担着较高的法律风险。文章首先分析了供电企业法律风险的各种表现形式,接着就法律风险的产生根源进行论述,最后提出全面防控法律风险的对策措施,以期为提升供电企业法律风险管理水平而抛砖引玉。     

引导农户施肥行为在农业面源污染治理中的影响——基于中英项目调查分析

基于中英项目实施情况,利用陕西省杨凌示范区及泾阳县331份农户实地调查数据,实证分析引导农户化肥施用行为在污染治理中的影响。分析结果表明对农户化肥施用行为的正确引导会减少化肥量的投入,最终影响我国农业面源污染的治理效果。因此,在构建我国农业面源污染微观治理机制时,要重视具有引导农户生产行为作用的治理手段。