安徽省农业产值增长制约因素的相关分析

安徽是一个农业大省，从安徽省农业产值13年的数据资料中可以看出，尽管产值有了一定的提高，但是幅度不大。究竟是什么因素制约了农业产值的进一步提高？本文应用Eviews软件对安徽省农业产值时间序列资料进行分析，找出了农业产值增长的关键影响因素，并提出了相关政策建议。     

基于蓝牙技术的小区警情无线监测系统

蓝牙技术目前是最先进的无线网络技术,它以低成本、近距离、微功耗的无线连接为基础,取代电缆,将一定范围的计算机通信电路及设备连接起来,实现不同设备之间的快速互连。应用蓝牙技术与蓝牙芯片ROK101007相结合,提出了“智能小区警情监控系统”方案,这种“高效、快速、低耗、稳定、可靠”的方案,具有广阔的应用前景。     

S-CDMA技术在HFC网络上行信道中的分析应用

在基于CATV的HFC双向网络中,S-CDMA的同步处理技术可以最大限度地克服上行信道中的噪声干扰,提高信道的利用率,确保数据传输的可靠性。     

平板显示产品缓冲包装方法及其设计要领

以液晶显示器(LCD)、等离子显示器(PDP)等典型平板显示器件作显示屏的家电及信息产品,称为平板显示产品。平板显示器基本结构是由两块玻璃板构成,其间由介质均匀间隔开。因此该类产品对包装缓冲、防震、抗压性能要求极高,特别是显示屏,若一旦损坏就无法修复,产品几乎完全报废。目前常用的包装方法有两类:一类是使用单一缓冲材料,另一类是使用组合缓冲材料。使用单一缓冲材料的包装方法有:①聚苯乙烯(以下简称EPS)缓冲包装方法;②聚乙烯泡沫塑料(以下简称EPE)缓冲包装方法;③聚丙烯泡沫塑料(以下简称EPP)缓冲包装方法。使用组合缓冲材…     

转换增长方式的行业思索

随着中美两国就纺织品贸易签署备忘录,20多年来中国社会反响最大的贸易争端-美欧对华纺织品特保争端已经全部结束.     

Diversification and Capital Structure: Some International Evidence

This study examines the effects of international and product diversification on capital structure with 232 firms from 30 countries. Results for the full sample show that international diversification is negatively related to financial leverage, but further analyses indicate that this is mainly attributable to US firms. For non-US firms, we fail to find a significant relationship. Results also show that product diversification is positively related to financial leverage, indicating that such diversification allows firms to reduce their risks, thereby enabling firms to carry higher debt levels.     

Sociology,risk and the environment: a material-semiotic approach

Abstract

Sociology has made significant contributions to the conceptualisation of risk and critique of technical risk analysis. It has, however, unintentionally reinforced the division of labour between the natural/technical and social sciences in risk analysis. This paper argues that the problem with conceptualisations of risk is not a misplaced emphasis on calculation. Rather, it is that we have not adequately dealt with ontological distinctions implicit in both sociological and technical work on risk between material or objective risks and our socially mediated understandings and interpretations of those risks. While acknowledging that risks are simultaneously social and technical, sociologists have not, in practice, provided the conceptual and methodological tools to apprehend risk in a less dualistic manner. This limits our ability both to analyse actors and processes outside the social domain and to explore the recursive relationships between risk calculus, social action and the material outcomes of risk. In response, this paper develops a material-semiotic conceptualisation of risk and provides an assessment of its relevance to more sociologically informed risk governance. It introduces the ideas of co-constitution, emergent entities and enactment as instruments for reconciling the material and social worlds in a sociological study of risk. It further illustrates the application of a material-semiotic approach using these concepts in the nuclear industry. In deconstructing social–material dualisms in the sociology of risk, this paper argues that a material-semiotic conceptualisation of risk enables both technical and social perspectives on risk not only to coexist but to collaborate, widening the scope for interdisciplinary research.     

高校研究生党员的先进性和纯洁性教育研究

保持党的先进性和纯洁性,是我党建设的内在要求,是马克思主义政党的本质属性。高校研究生党员保持党的先进性和纯洁性对党和国家事业的发展具有深远的意义,是历史发展的要求,是时代发展的要求。文章首先界定了研究生党员先进性和纯洁性的基本内容;其次,对高校研究生党员先进性和纯洁性教育研究的现状以及存在的问题进行了分析;最后,针对高校研究生党员先进性和纯洁性教育中存在的问题提出有效的建议和措施。     

An investigation of restaurant food safety performance: A comparison between ethnic and nonethnic and chain and independent restaurants in Louisiana

This study examines health inspection data from casual dining restaurants and compares differences of food code violations between ethnic and nonethnic restaurants. A total of 7,415 violations were retrieved from the restaurant inspection reports of 769 restaurants. Ethnic restaurants have more violations than nonethnic restaurant in categories related to food time/temperature violations, cross contamination, and food condition/surface/labels. Nonethnic and chain restaurants had fewer behavioral violations than ethnic and independently operated restaurants. Ethnic restaurants were 1.74 times more likely than nonethnic restaurants to have critical violations. Meanwhile, independent restaurants were 1.64 times more likely than chain restaurants to have critical violations.