Development of a Novel Finger-Trigger Interface for Trigger Pull Measurement

Trigger pull is the force that needs to be exerted on the trigger to discharge a firearm. The measurement of trigger pull can assist in the evaluation of the safety, function, and manufacturing characteristics associated with a firearm during the forensic firearm examination process. Nonetheless, the accuracy and uncertainty of trigger pull measurements may be affected by the measuring device, test procedure, and environmental conditions. In this work, an innovative finger-trigger interface device was developed to facilitate accurate trigger pull measurements. The idea was to reduce the variation related to the position of the measurement device on the trigger in existing measuring methods and devices. Three force sensors based on different technologies were initially evaluated. While two of the three sensors failed to produce data, the miniature capacitive plate sensor exhibited high precision and a linear response over the range of typical trigger pulls. To examine the effects of the finger-trigger interface on trigger pull measurement, different sensor housing prototypes were designed in silico and 3D printed for the construction of three finger-trigger interface devices. The performance of each finger-trigger interface device was evaluated by measuring the trigger pulls of several selected firearms and comparing the data to a previously published study. Our preliminary results demonstrated the novel finger-trigger interface device offered a new way to measure trigger pull in situ with acceptable accuracy and precision.     

共产党和工人党国际会议综述

从1999年开始,遭受苏东剧变严重冲击的国际共产主义运动出现了新的联合形式,即一年一度召开的当代世界“共产党和工人党国际会议”。经过20多年的发展,该会议在召开时间、地点、议题、主办方和参加党派、常设机构、运行原则等方面确立起了基本固定的架构,并逐渐成长为一个非组织化、非中心化的共产主义多边交流平台。研究该会议的构成要素、运行机制和功能定位对于探索国际共产主义运动团结合作具有重要意义。     

Fatal Methemoglobinemia Due to Acute Inhalation of Methyl Nitrite in an Industrial Accident

Methyl nitrite is suggested to cause methemoglobinemia by generating methemoglobin, which may be lethal when the methemoglobin concentration exceeds 70%. However, intoxication with methyl nitrite is seldom reported compared with that with other nitrites. Here, we present an industrial accident involving methyl nitrite inhalation during its synthesis process that resulted in three fatalities and one survivor. The autopsy revealed conspicuous blue-gray discoloration in various parts of the body, including the skin, airway mucosa, vessels, brain, heart, and among other areas. The toxicological tests on the deceased showed methemoglobin concentrations in the blood over the lethal level and increased nitrite ion levels in the blood, gastric contents, liver, and lung tissue compared with those in control samples. The cause of death was determined to be methemoglobinemia-induced hypoxia due to methyl nitrite inhalation. This report provides evidence that in methyl nitrite intoxication, exposure duration has a significant influence on the postmortem changes and likelihood of a fatal outcome may be related to the age of the victim. More attention is required regarding the industrial hazards of this substance.     

Juvenile and Family Court Judges’ Knowledge and Attitudes About Sex Trafficking of Minors: Associations with Gender,Race, and U.S. Region

Juvenile and family court judges are a professional group that have a significant amount of decision-making power in cases of sex trafficking of minors. The purpose of this project is to examine the association of juvenile and family court judges’ gender, race, and U.S. region with their attitudes and knowledge about sex trafficking of minors. Drawing from a survey of 55 juvenile and family court judges in the U.S., this study used standardized scales to measure attitudes and knowledge about child sex trafficking. Results indicate some differences by gender and geography in a sample of experienced judges across the U.S. The consistency of these findings are discussed in the context of other research and implications for targeted training.     

Corporate policy entrepreneurship and cross-boundary strategies: How a private corporation champions mobile healthcare payment innovation in China?

The private nature of corporate actors does not necessarily preclude them from contributing to public interest. When business strategies and genuine public motivation are favorably aligned, corporate actors from the private sector can also drive public sector innovations. For a private corporation, policy entrepreneurship inherently entails crossing not only the public–private boundary but also various policy domains. This study formulates five propositions to characterize the cross-boundary strategies of corporate policy entrepreneurship, a distinct form of policy entrepreneurship in a developing authoritarian state. The case study of mobile healthcare payment innovation in China finds that the corporate entrepreneur used a series of cross-boundary strategies adeptly that eventually made the innovation not only adopted in one locality but also rapidly diffused nationwide. These strategies were not used in isolation or in a pure stepwise fashion but appeared to be recursive and interactive, suggesting the dynamic nature of corporate policy entrepreneurship in a multilevel governance system. More studies could be done to further examine strategies and processes of other forms of policy entrepreneurship in various national and sectoral settings.     

专业学会在应对突发公共卫生事件中的作用——以新型冠状病毒肺炎疫情应对为例

与一般危机事件相比,突发公共卫生事件具有突发性、高度专业性、未知性、群体性、社会性以及应对协同性等特征。在现代化治理体系中,专业学会作为突发公共卫生事件应急管理的重要补充力量,应当发挥专业优势、组织协调优势、凝聚精神等优势,在疾病的预测、健康科普、组织动员、心理干预等方面发挥积极作用。     

对构建“四警一化”现代警务机制的思考

构建现代警务机制,实现传统警务向现代警务的跨越,是公安工作发展的长远之计。嘉兴市公安机关着眼于特色发展、创新发展和内涵式发展,积极构建“四警一化”现代警务机制,即以信息警务为主导、以主动警务为突破、以合作警务为依托、以人文警务为支撑、以队伍职业化为保障,不断提升公安机关的创新力、执行力、拓展力、软实力和职业化水平。