A novel method for cyanide quantification in human whole blood using ion chromatography with amperometric detection and its application to cyanide intoxication cases

Cyanide is a highly toxic agent that has been frequently used for suicide in South Korea. It is also used in various industrial fields, such as metal plating, in which many accidental cyanide intoxications have occurred. To overcome the disadvantages of conventional cyanide analysis methods, a simple and fast method for the analysis of cyanide in whole blood using ion chromatography (IC) with amperometric detection was developed in this study. Whole blood samples were deproteinized, diluted, and analyzed using an IC–amperometric detection system. The limits of detection and quantitation were 0.1 and 0.2 mg/L, respectively. The method showed good linearity in the range of 0.2 to 50 mg/L with R² > 0.99. The intra- and inter-assay precision and accuracy values were <10%. The established method was successfully applied to analyze whole blood samples from three cyanide intoxication cases.     

税收结构改变的长期影响与转型特征

提高直接税比重是优化我国税制结构和调节收入分配的重要实现途径，但可能同时对经济增长和社会福利产生影响。当政府降低消费税，如果维持长期总税收不变，那么不管是提高工资收入税税率还是资本收入税税率，经济中的资本积累和生产规模都会有一定程度的缩减；从长期看，提高直接税比重会降低消费者福利，但是转型过程中可能会有部分代际受益。相比于提高资本收入税，提高工资收入税税率在长期给经济增长和消费者福利带来的负效应更为明显。     

Parenting and Centrality: The Role of Life Meaning as a Mediator for Parenting and Language Broker Role Identity

Journal of Youth and Adolescence - Language brokering is a prevalent phenomenon in ethnic minority immigrant populations. Although accruing evidence points to the beneficial impacts of healthy role...     

The effects of national cultures on two technologically advanced countries: The case of e-leadership in South Korea and the United States

The increased use of information and communication technologies (ICTs) has triggered enormous innovation in the public sector and created positive public value at the managerial, delivery of services, and policy levels. However, these positive outcomes do not automatically accrue simply by adoption of ICTs as public leaders can fail to adopt relevant new ICTs, use them poorly, or use them in ways that actually diminish public value, which raises the question of the importance of e-leadership. This article examines e-leadership and innovation capacity at the individual public manager level and fills in some gaps about the practice and implementation of ICTs in the public sector. We explore eight research questions useful in theorizing about e-leadership, develop constructs of e-leadership, and describe the current development of e-leadership. By comparing e-leadership in two country settings (South Korea and the United States), we also overcome the limitations of the existing Western-oriented studies about innovations in the public sector. In addition to the growth of e-leadership use and requirements for a variety of competencies equivalent to, but separate from, traditional communication competences, we find that national cultures exert significant influence on the major constructs of e-leadership, which implies that an effective e-leadership strategy should consider cultural contexts seriously.     

刑事法律援助制度的发展与完善——兼评《法律援助法》相关条文

《法律援助法》的施行，标志着我国初步建立了符合现实国情的法律援助制度体系。刑事法律援助制度的发展历程对于《法律援助法》的施行有启示意义。《法律援助法》在刑事法律援助制度的设计中既有突破性的亮点，也存在一些缺憾。在《法律援助法》实施以后，仍然应当加强对刑事法律援助制度的研究，并从立法推进和配套机制建设两个方面继续对其加以完善。必须加强法律援助的国家保障，确保《法律援助法》发挥功效。     

Molecular Identification of Necrophagous Dermestes Species in South Korea Using Cytochrome c Oxidase Subunit I Nucleotide Sequences (Genus Dermestes)

Species identification of necrophagous insects found on a dead body is an essential key in applying medicolegal entomology to the estimation of postmortem interval (PMI). Due to limited morphological identification of insect evidence, several studies have identified species using molecular information such as DNA markers. While considerable cytochrome c oxidase subunit I (COI) gene sequence data of necrophagous fly species have been collected and annotated, those of necrophagous beetle species have not. Since necrophagous beetles such as Dermestes species have a larval period longer than that of flies, beetles are useful in even the late decomposition phase in estimating minimum PMI. To obtain the full-length COI gene sequences of six Dermestes species collected from South Korea, we designed primers for polymerase chain reaction amplification and sequencing. The obtained full COI nucleotide sequences were used for performing phylogenic analysis and comparison with previously reported sequences. The results demonstrated that the COI gene sequences could be used to identify forensically important Dermestes species in South Korea.     

从科学概念看我国综合科学教科书的缺陷

与传统分科课程相比,综合科学课程仍存在着概念过多、过难的严重缺陷。这会影响学生对科学概念的理解,使科学探究活动大打折扣,使学生的学业负担更重。教科书的这一缺陷,使综合科学课程未能体现出应有的优势,直接导致新世纪综合科学课程改革步履维艰。     

战后初期泰国华人进步团体探析

二战后,中国共产党领导的人民革命斗争与国民党反动派的斗争也影响到泰国①华人社会,侨社中民主与反民主势力彼此针锋相对,     

政府农业投入与农民发展权的法律保护

农业是国民经济的基础产业,同时又是弱质产业。我国政府长期以来采取向工业倾斜的政策,对农业投入严重不足,不仅如此,还从农业中抽取大量剩余用以发展工业,从而忽视了农民的发展权。农民作为弱势群体,只有形式上的正义是不能解决农民发展权问题的,必须从实质正义的角度来加以调整。此外,我国加入世贸组织后,在面对国外发达农业的激烈竞争时,更需要政府用法律手段保证加大对农业的投入,保护农民的权益。     

Spatial variation of refractive index in a pane of float glass.

In the statistical interpretation of forensic glass evidence it is standard practice to make the assumption of homogeneity of the refractive index (RI) of the source glass, or of localized homogeneity. However, the work of Locke and Hayes showed that, for toughened windscreen glass, this assumption might not be true. This work is well cited, but there appears to have been little follow-on published research. Furthermore, the toughening process is something known to affect the refractive index, and is a process that float glass does not undergo. Float glass is a major component of casework in New Zealand and for that reason it would be interesting to know whether the findings of Locke and Hayes apply when dealing with float glass. In this paper we describe an experiment similar to that of Locke and Hayes, systematically examining the variation of RI in a pane of float window glass. It was found that, although there were no systematic differences in refractive index, there were observable differences across the pane.