Powdered Activated Carbon: An Alternative Approach to Genomic DNA Purification

Forensic evidence samples are routinely found as stains on various substrates, which may contain substances known to inhibit polymerase chain reaction (PCR). The goal of this study was to evaluate post‐Chelex^®100 purification using powdered activated carbon (PAC). Mock crime scene DNA extracts were analyzed using quantitative PCR and short tandem repeat (STR) profiling to test the DNA recovery and inhibitor removal using PAC with those of the Amicon^®Ultra 100K. For extracted bloodstains on soil and wood substrates, PAC and Amicon^®Ultra 100K generated similar DNA yield and quality. Moreover, the two methods significantly decreased the concentration of humic substances and tannins compared to nonpurified extracts (p < 0.001). In instances where extracts contained indigo dye (bloodstains on denim), Amicon^®Ultra 100K performed better than PAC due to improved amplifiability. Efficient adsorption of humic substances and tannins, which are common inhibitors, indicates PAC's potential application in the purification of high‐template DNA extracts.     

成趟足迹提取方法导致误差的探讨

目的研究提取成趟足迹的低误差方法。方法比较相同条件下一次性拍照、分段连续拍照和扫描仪提取所产生的误差的大小。结果扫描仪提取法的误差最小。结论扫描仪提取足迹的方法易于掌握,适合基层技术员推广使用。     

Sectoral Opposition to Carbon Taxes in the EU – a Myopic Economic Approach

Over 10 years ago the EU Commission proposed a directive on carbon taxes, but faced so much domestic resistance that agreement was not reached until last year – and after it had been considerably watered down. The aim of this paper is to look into economic reasons for the political infeasibility of extensive carbon taxes. Since opposition is believed to arise prior to the policy implementation, the cost estimates have a myopic character compared with market estimates, in the sense that sectors are presumed to take into account their own substitution opportunities, but disregard changes in other sectors as well as the macroeconomic welfare gains from a tax regime. With this myopic approach, we estimate and compare costs of emissions cuts across sectors and across countries in the EU, showing how different sectors might have anticipated the impacts from an expected carbon tax. This focus illustrates that what seems to be cost-effective and to the best for the region on paper turned out too controversial to be politically feasible.     

现场足迹查询比对系统的可行性研究及应用

目的建立现场足迹查询比对系统,加强现场足迹的利用意识。方法以现场足迹文本查询、现场足迹图形特征查询和两者复合查询为比对系统的主要内容,并对现场足迹文本字段和足迹图形进行统一的科学界定。结果具有输入、浏览和异地查询功能。结论现场足迹查询比对系统能提高足迹的认定率,提高案件的并串质量和速度,达到破案目的。     

Evidence of Premeditation in Skin Messages in Suicide

A 34‐year‐old man with manic‐depressive disorder was found dead sitting in a vehicle with a hose running from the exhaust pipe to the cabin. Numerous suicide notes were found inside his house. At autopsy, the decedent was wearing jeans and a long‐sleeved windcheater. Upon removal of his clothes, a series of messages were also found written on the legs and forearm. Death was due to carbon monoxide toxicity with a blood level of carboxyhemoglobin of 84%. Skin messages represent a rare form of suicide note that may suggest that a suicide has not been planned, as the decedent may have used the nearest surface to write on. This case demonstrates, however, that skin messages may be more organized, being written prior to dressing and setting up the fatal episode. They also may compliment other notes and messages.     

Meeting a Forensic Podiatry Admissibility Challenge: A Daubert Case Study

This article is an introduction to the United States Supreme Court's standard of admissibility of forensic evidence and testimony at trial, known as the Daubert standard, with emphasis on how this standard applies to the field of forensic podiatry. The author, a forensic podiatrist, provided law enforcement with evidence tying a bloody sock‐clad footprint found at the scene of a homicide to the suspect. In 2014, the author testified at a pretrial hearing, known as “a Daubert hearing,” to address the admissibility of this evidence in court. This was the first instance of forensic podiatry being the primary subject of a Daubert hearing. The hearing resulted in the court ordering this evidence admissible. The expert's testimony contributed to the suspect's conviction. This article serves as a reference for forensic podiatrists and experts in similar fields that involve impression evidence, providing evidentiary standards and their impact on expert evidence and testimony.     

One global deal from Paris 2015: Convergence and contestations on the future climate mitigation agenda

This article analyses the 2015 Paris Agreement of the UN Framework Convention on Climate Change, with a focus on mitigation. The history of climate negotiations and the mitigation agenda shows the divide between developed and developing countries, with the latter insisting that the former, having caused the problem, need to do more to reduce carbon emissions to address climate change. However, as some emerging economies had continued to emit more carbon, there were calls to treat these as developed countries, requiring increased mitigation measures. The article examines the record of these emerging economies, and establishes that there was some convergence in Paris, a positive element that resulted in a single global climate treaty. However, the Paris negotiations also witnessed contestations, with the final agreement insufficient to keep global warming within advised limits, and in any case only partly legally binding, leaving its implementation success to good will.     

生态文明视域下的桂林低碳城市建设

低碳城市建设对于推进桂林生态文明,打造国际旅游胜地具有重要意义。桂林需探索一条以低碳产业为主导的经济发展模式、市民崇尚低碳化生活方式、政府以建设低碳社会为目标、具有自身特色的低碳城市建设道路,推动经济、社会、文化、生态的可持续发展,从而实现桂林建设"全国生态文明建设示范区"的目标。     

一氧化碳中毒致死之案例研究

通过两例一氧化碳中毒致死特殊案例的分析,探讨一氧化碳中毒原因,中毒机理,中毒致死量。案例分析表明,只有通过详细认真的现场勘查,专业性的尸体检验及检材采取,科学的富有逻辑性的案件分析论断,才能准确为案件定性,解答死者家属疑问,以避免冤案错案的产生。     

Renewable energy and East Asia's new developmentalism: towards a low carbon future?

Abstract

East Asia's renewable energy (RE) sector has grown faster than any other region's since the mid-2000s. It is argued that renewables formed an integral part of the region's new industrial policies and new developmentalism, which are founded on new configured forms of state capacity shaped in response to various challenges, primarily climate change, energy security, globalisation and global neo-liberalism. By studying the recent progress of East Asia's RE sector, we gain useful insights into these key developments in East Asia's political economy and the region's prospects for transition towards low carbon development. This analysis considers how and why different approaches to RE policy emerged in East Asia, to what extent the promotion and expansion of East Asia's RE sector is part of a new industrial policy paradigm and new developmentalism, and what the study of East Asian policies on promoting renewable energy can tell us about the region's broader approach to low carbon development. Although the promotion of renewable energy has been a fundamental part of East Asia's recent macro-development plans and new developmentalism generally, these same plans suggest that East Asian states will simultaneously continue to significantly promote high carbon and ecologically damaging industrial activities, thus undermining the low carbon credentials of East Asia's new developmentalism. The path to meaningful low carbon development will be very long and will take many decades to achieve. However, it is contended that by maintaining and improving their various forms of state capacity over time, the East Asian states will be well positioned to sustain the significant growth of their renewable energy sectors and thereby further strengthen the low carbon development orientation of their new industrial policies, macro-development plans and strategic economic thinking.