K9 water searches: scent and scent transport considerations

Increased use of water search dogs for detecting submerged bodies has created the need for a better understanding of scent emanating from the bodies and how it transits the water to the dog's nose. A review of recent literature identifies likely scent sources, potential scent transport processes, and research needs. Scent sources include gases in bubbles or dissolved in the water, liquids as buoyant plumes and droplets or dissolved in the water, and solids consisting of buoyant particulates with secretions, bacteria, and body fluids. Potential transport processes through the water include buoyancy, entrainment, and turbulence. Transport processes from the water surface into the air include volatilization and evaporation enhanced by bubble bursting, breaking waves, splashing, and wind spray. Implications for the use of water search dogs are examined. Observations of submerged, decomposing bodies are needed to quantify the physical and chemical characteristics of the scent and scent transport processes.     

Full STR profile of a 67-year-old bone found in a fresh water lake

DNA extraction from and DNA typing of fresh water-exposed aged bone specimens poses a challenging task and is not very well examined. This study presents a new method to extract typable DNA from such problematic bone specimens. The procedure comprises low-heat drilling and cryogrinding, mild lysis conditions, and silica-column-based DNA cleaning. DNA quantity is assessed by quantitative PCR prior to short tandem repeat (STR) amplification. The procedure was employed with a 67-year-old tibia bone fragment recovered from a fresh water lake and succeeded to produce a full STR profile using the MPX-SP1 and MPX-SP2 mini-STR kits and a partial profile with 12 successfully amplified STRs using the Identifiler STR kit. The new method for the extraction of DNA from aged fresh water-exposed bone specimens presented herein was successfully applied to prepare DNA of sufficient quality and quantity to generate a full STR profile.     

掺杂Cd的水溶性荧光ZnSe/MPA量子点显现胶带手印方法

目的探索水溶性荧光量子点溶液——掺杂镉的硒化锌（ZnxCd（1-x）Se）对胶带手印的显现方法。方法以巯基丙酸（MPA）为修饰剂合成了掺杂Cd的水溶性荧光ZnSe/MPA量子点,利用它显现水浸胶带及粘连胶带上的油汗指印,并在365nm下拍照成像。结果良好的显现出水浸胶带上的指印以及粘连胶带上的指印。与常规方法相比,优势更为明显。结论水溶性荧光量子点ZnxCd（1-x）Se溶液显出的指印纹线细腻流畅,在法庭科学领域具有很好的应用前景。     

南水北调中线工程与河南省区域联合治理机制研究

南水北调工程是一个典型跨主体、跨行业、跨期和跨行政区域的水利工程,繁杂的工程建设以及信息不对称和管理认识上的滞后,管理者往往低估了各种潜在风险对工程的影响。本文从南水北调工程与河南区域关系特征入手,分析了两者间存在的问题,在此基础上,从理顺治理结构、探索具有激励相容的工程区域合作模式、选择可行的政策工具组合、从博弈论角度构建工程区域关系、引入工程影响评价机制等角度提出了对策建议。     

Delivering Science into Public Policy: An Analysis of Murray‐Darling Basin Sustainable Yields Assessment as a Model for Impact

The desire to base policy at least in part upon scientific information is a clear trend in Australian governance. The growing literature on how to facilitate this intent highlights a few important principles complemented by examples from the application of social sciences. An example from a very large research project based on physical sciences responding to a national crisis is presented in the context of how it approached delivery to policy‐makers. The Murray‐Darling Basin Sustainable Yields Assessment, widely considered an outstanding success in both scientific terms and for its impact, is reviewed with respect to how the scientific challenge of assessing the future security of water resources in Australia's most important and politically contentious catchment translated into the policy domain. The lessons learned offer a potential template for science with policy intent.     

社区矫正问题的调研和思考——以抚顺市为例

社区矫正是与监禁矫正相对的行刑方式,是指将符合社区矫正条件的罪犯在社区内,由专门的国家机关在相关社会团体和民间组织以及社会志愿者的协助下,在判决、裁定或决定确定的期限内,矫正其犯罪心理和行为恶习,并促进其顺利回归社会的非监禁刑罚执行活动。社区矫正积极利用各种社会资源、整合社会各方面力量,对社会危害性不大的罪犯,进行有针对性管理、教育和改造的工作,是当今世界各国刑罚制度的发展趋势。     

清代水事纠纷解决途径及其启示

作为封建农业大国,清代水事纠纷发生频繁,解决这些纠纷的诉讼途径和非诉讼途径相配合,其中诉讼解纷途径注重实地勘验获取第一手材料,并且注重国家法令与地方风土人情和水事习惯规则相变通和协调;非诉讼解决机制中的调解注重利用乡绅、＂水老＂等民间力量。尤其是诉讼和调解都注重发挥熟人社会的自我监督和教育功能,并促进水事习惯规则生成和传承,值得研究扬弃。     

Waxing grave about adipocere: soft tissue change in an aquatic context

When postmortem environmental conditions are "just right," according to the "Goldilocks Phenomenon," soft tissues (and associated fatty acids) are converted into and preserved as adipocere. To better understand this conversion process and the development of adipocere three human cadavers were immersed in outside, water-filled pits for over 3 months to observe adipocere formation in an underwater context simulating actual field conditions. Recordings of environmental conditions showed that temperatures were between 21 degrees C and 45 degrees C, a range sufficient for the growth of Clostridium perfringens. Chemical analysis of liquid and tissue samples revealed an increase in palmitic acid and decrease in oleic acid. This study tracked the remarkable gross morphological changes that can occur in human bodies subjected to an aquatic postmortem environment. The results support the "Goldilocks Phenomenon" and substantiate previous findings that the presence of bacteria and water is crucial for adipocere to form.     

青少年滥用“咳嗽水”的危害及其防治

"咳嗽水"里含有管制药品磷酸可待因和麻黄素,揭示滥用咳嗽水对人体产生的依赖性及危害性。分析导致咳嗽水泛滥的社会原因,提出防治青少年滥用咳嗽水应做好的防治工作。     

政府应充分发挥工会在调整利益分配格局中的作用

社会和谐稳定的基础是各阶层利益相对均衡。工资协商共决,是工会维权的核心举措和基本手段;公共服务社会治理,是工会维权的相关领域。这是工会在调整社会利益格局中两个基本支点。各级政府在调整劳资利益和社会阶层利益中,运行手中行政权力资源,提供相应制度配置和物质保障,充分发挥工会的国家政权重要社会支柱作用。