现代仪器分析在环境无机分析化学中的应用探讨

灵敏性、精确性是现代仪器分析的重要特征,同时其对于环境的适应能力也可圈可点,这就使得在现如今的环境无机分析过程中,现代仪器处于至关重要的地位。文章对现代仪器在环境无机分析化学中的应用进行了探讨。     

浅谈仪器分析实验教学

<正>随着人才培养模式和科学技术的不断发展,培养学生创新能力和实践动手能力是我国教学改革的重点,注重应用创新型人才的培养是教学体系改革的目标[1]。仪器分析是一门实践性很强的综合应用型学科,在医药卫生、农业、工业、现代生命科学、环境科学等领域发挥着越来越重要的作用。仪器分析实验对于培养学生观察、思考、判断、推理问题的能力,掌握独立地进行科学实验的方法,养成良好的实验习惯与严谨的科学态度起着重要的作用[2],因此仪器分析课程应该重视仪器分析实验     

食品工程专业的农药残留分析实验

将现代分析技术与食品专业的食品分析与检验、食品质量与安全等课程相结合,开发大型分析测试仪器用于农药残留分析的食品专业实验,并介绍了饮用水、果酒、果蔬等食品中农药残留的GC-MS检测实验内容与方法。     

成都地区现代物流产业的SWOT分析

本文运用SWOT分析方法对当前环境下成都发展现代物流业所具有的优势、劣势、机遇和挑战进行了分析,指出成都物流业发展的环境会更加宽松,各类企业只有抓住机遇发挥优势,消除劣势迎接挑战,才能促进成都物流业更好更快地发展.最后根据分析结果对成都地区发展现代物流业提出几点建议.     

仪器分析实验改革探索

仪器分析是化工类专业重要的专业基础课之一,而仪器分析实验在教学中尤为重要。仪器分析实验对于培养学生的动手能力、创新能力及分析问题、解决问题的能力起着重要的作用。本文以仪器分析实验目的入手,结合几年仪器分析实验教学经验,分别从教学内容、教学方法等方法进行研究。     

如何提高气相色谱定量分析的准确度

随着科学技术的发展,气相色谱法作为一种新型分离分析技术被迅速发展起来,它是一种高效能、选择性好、灵敏度高、应用广泛的仪器分析方法。但在应用过程中,由于环境、样品、仪器或操作等都将造成分析误差。那么如何提高气相色谱定量分析的准确度呢？有以下几个方面：     

浅谈涂料成分分析

文章采用气质联用仪对涂料中的溶剂进行定性,气相色谱仪以内标法进行定量;采用溶剂萃取法分离涂料成膜物,结合红外光谱仪、凝胶色谱仪和气质联用仪等现代仪器分析其成分,确定出该涂料的类型及基本组成。     

河北省现代服务业SWOT分析及发展对策

现代服务业对于河北省增强可持续发展能力、加快经济发展有重要的意义。本文在利用SWOT分析方法对河北省现代服务业内外部环境进行分析的基础上,结合河北省现代服务业发展战略,试图提出促进其快速发展的具体措施。     

基于SWOT分析论重庆发展现代化区域物流中心的战略

文章运用SWOT分析方法对当前环境下重庆地区发展现代区域物流中心所具有的优势、劣势、机遇、挑战进行了综合分析.在分析的基础上,提出了几点重庆发展现代区域物流中心的战略措施.     

浅谈仪器分析实验教学

分析了仪器分析实验教学现状,指出仪器分析实验教学中存在实验内容陈旧、教学模式单一、人多机少等问题,从改进教学方法、教学内容、实验教材、考核方法、教学模式等几方面,提出仪器分析实验教学中的改革思路和设想,以提高学生的动手能力和创新能力.     

仪器分析实验教学中渗透创新教育初探

素质教育的核心是创新教育,创新教育的重点是培养学生的创新精神和创新能力,该文从仪器分析实验创新、激发学生的创新意识、培养学生的创新精神等方面探讨在仪器分析实验教学中渗透创新教育的研究。     

试论仪器分析技术在油品分析中的运用

随着社会经济的迅速发展,我国的人口数量一直处于持续上升趋势,不断扩大了人们对能源的需求量,在一定程度上推动了我国石油业的发展。具体分析石油产品以及产品带来的好处,能够将石油产品的表征性充分展现出来。就现阶段而言,我国很多技术部门依然会选择使用传统的分析方法对石油产品进行分析,不仅浪费了很多时间,还无法确保分析结果的精确性。仪器分析技术是现阶段被人们广泛使用的新兴技术。论文主要讲述了在油产品分析中如何使用仪器分析技术。     

Influences on expatriate social networks in China

This study applied social network theory to investigate the factors influencing expatriate social networks and the consequences of expatriate social networks in China. Based on analysis of 171 Taiwanese expatriates in China, this study found that core self-evaluations and extraversion are significant for expatriates in developing expressive and instrumental ties with host country nationals. Moreover, job autonomy assists expatriates in developing instrumental ties with host country nationals. The expressive and instrumental ties of expatriates with host country nationals are significant for overseas adaptation. Finally, instrumental ties with host country nationals are significant for expatriate job performance.     

Finding Form: Looking at the Field of Organizational Aesthetics

abstract Organizational research has long focused on the instrumental sphere with its questions of efficiency and effectiveness and in recent decades there has been interest in the moral sphere with its questions of ethics. Within the last decade there has also emerged a field that draws on the aesthetic sphere of our existence in organizations. In this review we look at the field of organizational aesthetics in terms of content and method, suggesting four broad categories of organizational aesthetics research: intellectual analysis of instrumental issues, artistic form used to look at instrumental issues, intellectual analysis of aesthetic issues, and artistic form used to look at aesthetic issues. We then suggest how organizational scholars might pursue artistic aesthetic organizational research.     

Instrumentalism, the Principle of Continuity and the Life Process

A bstract . Instrumentalism and the instrumental logic , as developed and reconstructed by John Dewey, Clarence Ayres , and Jacob Bronowski , is a mode of philosophy exceedingly critical of dualistic, teleological, tautological, and atomistic individualistic biases in philosophy and in economic theory. Instead, it has emphasized processual, contextual, and evolutionary systems of analysis, accentuating conceptual linkages, topological connectivity and joint relationships as a basis of rejecting conceptions of scientific neutrality and intellectual "instruments" forged in an insulating and compartmentalizing style. The principle of continuity becomes the key to the truth process and its directly associated theory of instrumental value. Applying this instrumental philosophy to the critical analysis of the utility theory of value underpinning orthodox economic theory not only exposes the theoretical and philosophical failures of the utility approach but also highlights the strengths of the instrumental logic as a reconstructive tool. The "life process of mankind" is most enhanced by distinguishing truth from falsity and by applying warranted knowledge to the examination of social and economic problems and the power institutions which give them an exacerbated life.     

中国跨国公司员工社会资本对外派适应的影响研究

理论界从社会资本视角探讨外派适应的研究仍处于探索阶段。本文在回顾相关文献的基础上,首先,构建了中国企业外派人员社会资本对外派适应影响的理论框架;其次,采用问卷法进行调查,获取255份有效问卷;再次,采用探索性因素分析、验证性因素分析和层次回归等多种统计方法对这些问卷进行,结果显示,外派人员与东道国居民的工具性关系对一般适应和互动适应有显著正向影响,在工作适应中,仅外派人员与母国其他外派人员的情感性关系发挥显著作用;最后,根据研究结论,本文提出相应的建议,希望能为跨国公司外派实践提供帮助。     

What is the effect of university education on chances to be self-employed in transitional countries?: Instrumental variable analysis of cross-sectional sample of 29 nations

We used a high-quality cross-sectional data set that covers a diverse set of 29 transitional countries, to find the effect of education of probability of people being self-employed using standard probit models and instrumental variable biprobit that address endogeneity. Our findings suggest a negative effect of university education on the propensity of being self-employed. This finding remains the same for the single-stage model (i.e. standard probit) and the instrumental variable model (i.e. biprobit). We found strong endogeneity in the estimation of education effect on the propensity of being self-employed, ignoring which renders estimations biased. Regression models, which do not address endogeneity tend to underestimate the negative effect of the education on the probability of being self-employed in the countries of transition. Researchers should use alternative approaches to reduce endogeneity, such as instrumental variables and longitudinal analysis.     

Adolph Löwe's Political Economics: Instrumentalism as Enlightened Intervention

A bstract Adolph Lowe's work was dedicated chiefly to developing "political economics" as a foundation for economic theory and instrumental analysis to direct a politically free economy along the path of economic growth
This paper argues that the public management inherent in instrumentalism is not likely to be acceptable in the U S or the U K, except in national economic emergency Yet, the formerly planned economies of central and eastern Europe, whose history is one of stringent control, may have a political preference for a Lowe type of instrumentalism to avoid the results of uncontrolled market processes
The reception accorded Lowe's political economics by economists, as members of a professional community, reflects their methodological preferences and policy views Those who are skeptical of the market clearing capability of the price mechanism, and explain capitalist development as an ongoing historical process, are more likely to be appreciative of instrumental analysis as a policy tool     

Risk management affecting IS/IT project success through communicative action

Project risk management is defined in the literature as being instrumental action based on rational problem solving. Research indicates limited positive effects of an exclusive focus of instrumental action on project success. This article proposes to extend this instrumental view through communicative action. This theoretical broadening was explored by interviewing project stakeholders about project success and risk management application. Analysis demonstrates stakeholders deliberately use risk management to convey messages to others, with the aim of influencing their behavior, synchronizing their perception, and making them aware of the context and their responsibilities. Stakeholders perceive these effects as contributing to project success.     

Treatment effect bounds: An application to Swan–Ganz catheterization

We reanalyze data from the observational study by Connors et al. (1996) on the impact of Swan–Ganz catheterization on mortality outcomes. The study by Connors et al. (1996) assumes that there are no unobserved differences between patients who are catheterized and patients who are not catheterized and finds that catheterization increases patient mortality. We instead allow for such differences between patients by implementing both the instrumental variable bounds of Manski (1990), which only exploits an instrumental variable, and the bounds of Shaikh and Vytlacil (2011), which exploit mild nonparametric, structural assumptions in addition to an instrumental variable. We propose and justify the use of indicators of weekday admission as an instrument for catheterization in this context. We find that in our application, the Manski (1990) bounds do not indicate whether catheterization increases or decreases mortality, where as the Shaikh and Vytlacil (2011) bounds reveal that at least for some diagnoses, Swan–Ganz catheterization reduces mortality at 7 days after catheterization. We show that the bounds of Shaikh and Vytlacil (2011) remain valid under even weaker assumptions than those described in Shaikh and Vytlacil (2011). We also extend the analysis to exploit a further nonparametric, structural assumption–that doctors catheterize individuals with systematically worse latent health–and find that this assumption further narrows these bounds and strengthens our conclusions. In our analysis, we construct confidence regions using the methodology developed in Romano and Shaikh (2008). We show in particular that the confidence regions are uniformly consistent in level over a large class of possible distributions for the observed data that include distributions where the instrument is arbitrarily “weak”.