管理空白区域探析

管理者面临的一个重要问题是如何对管理群体实施有效管理，使之发挥最佳效用，从而实现企业目标，为此研究管理群体中如何进行管理，以及对管理空白区域的探析将是十分有价值的，如管理空白区域的客体假设，管理载荷的分析；管理客体的受力分析；管理客体的变形分析；管理客体的承载能力及保证措施。     

六四式手枪弹壳发射顺序的研究

目的　研究六四式手枪射击弹壳的排序规律。方法　对已知顺序实弹射击取样 ,显微观察弹壳上发射过程中形成的痕迹 ,通过统计、归纳 ,从中发现与排序有关的痕迹特征 ,及其与发射顺序之间的关系。结果　研究发现 ,因子弹发射顺序不同 ,弹壳上出现的抛壳挺痕的高低 ,弹底边缘压擦痕的有无轻重 ,推弹突笋痕迹的形状位置与发射顺序有关。结论　根据抛壳挺等痕迹的具体形态 ,及变化特点 ,可判断出六四手枪弹壳的发射顺序。     

七七式手枪推弹突笋痕与发射顺序的研究

目的研究七七式手枪射击弹壳的排序,找出射击顺序之间的关系。方法通过已知顺序的实弹射击取样,用显微镜观察弹壳上连续射击过程中形成的推弹突笋痕迹,经过统计、归纳,从中发现与射击顺序之间的关系。结果根据弹壳底面的推弹突笋痕迹变化规律判断出七七式手枪发射子弹的顺序。结论为指导涉枪案件的检验鉴定提供依据。     

QSZ92式9mm手枪射击弹壳击针痕迹次种类特征的研究

目的研究QSZ92式9mm手枪击针在生产加工过程中潜在的次种类特征,以区别于个体特征。方法用超景深体式显微镜对特定工序连续生产加工的10件QSZ92式9mm手枪击针的射击痕迹进行观察比对。结果不同击针形成的击针痕迹痕底特征具有特定性,而痕壁特征中的同心圆状或圆弧状加工痕迹具有相似性,属于次种类特征。结论同一认定过程中不能将击针痕迹中的同心圆状或圆弧状加工痕迹作为个体特征使用。     

Modified landscapes: vulnerabilities to genetically modified corn in northern Guatemala

From the countryside to the cubicle, this contribution explores vulnerabilities to genetically modified (GM) contamination of maize landraces in northern Guatemala following the DR-CAFTA (Dominican Republic-Central America-United States Free Trade Agreement). Although some industrial farmers elsewhere in Guatemala might welcome GM seeds, in this lowland refuge zone, transnational agribusiness corporations would largely face a recalcitrant and risk-averse peasantry not easily converted into reliable customers. While the unpredictability of improvisational swidden systems in this dynamic frontier zone has protected small farmers from corporate seed marketers, it also leaves them vulnerable to informal (and invisible) GM gene flow into local maize landraces. Recent changes to Guatemala's biosafety regulatory structure may compound processes of involuntary contamination despite latent citizen opposition to GM corn.     

改良醋酸铵盐析法提取福尔马林固定石蜡包埋组织DNA

目的采用改良醋酸铵盐析法提取福尔马林固定石蜡包埋组织DNA,并评价其应用价值。方法取死后24h内人体肾组织用10%中性福尔马林溶液固定7d,石蜡包埋。采用酚/氯仿法、Chelex-100法及改良醋酸铵盐析法提取DNA。经用紫外分光光度计法、AGE及PCR-PAGE检测比较不同方法提取DNA的质量。结果改良醋酸铵盐析法、酚/氯仿法、Chelex-100法OD260/OD280比值分别为1.962±0.195、2.110±0.470、1.018±0.124,两两比较均有显著性差异(P<0.05);3种方法提取DNA含量(μg)分别为0.515±0.447、0.328±0.345、5.346±1.994;AGE电泳图谱可印证上述结果;PCR-PAGE检测显示改良醋酸铵盐析法提取DNA的谱带清晰度好于其它两种方法。结论改良醋酸铵盐析法更适合微量福尔马林固定石蜡包埋组织样本DNA的提取。     

Tactics,traditions and opportunities: British and French crop‐trashing actions in comparative perspective

This article compares the tactic of trashing genetically modified crops in activist campaigns in Britain and France. In Britain, most crop trashing was carried out covertly, while in France most activists undertook open, public actions. In seeking an explanation for this, the article shows that the analysis of political opportunities, dominant in comparative studies of social movements, can only take us so far. While it helps explain the occurrence of direct action, it is much less useful in explaining the tactical differences between each country. It is argued that a fuller explanation requires an understanding of how action was shaped by different activist traditions. In France, action was staged as a demonstration of serious, responsible, collective Republican citizenship; in the United Kingdom, activists combined a sceptical view of legality developing from anarchist individualism with an explicitly non‐threatening, playful, ethos. The article concludes that a focus on activist traditions can provide an effective bridge between structural and cultural approaches to understanding the determinants of social movement action.     

Discordance of Gross and Histologic Findings in Estimating the Range of Fire of Gunshot Wounds

Forensic pathologist use soot and/or stippling surrounding entrance gunshot wounds in categorizing range of fire. If absent, some pathologists suggest utilizing histology when the range is diagnostically critical. This study investigates the concordance of macroscopic and microscopic findings in estimating range of fire by evaluating gunshot entrance and exit wounds made through human tissue analogs at defined distances using two handgun calibers. Examination of over 150 entrance wounds verified the ease of visually detecting soot from a muzzle distance of contact to 1 foot (30.5 cm), and its absence at 9 feet (274.3 cm). Distinctly apparent was bullet wipe surrounding the entrance wounds regardless of muzzle distance. Although variations existed, dark material was histologically identified in many skin, soft tissue, and bone sections at all ranges with both calibers. These nonparallel results decrease the dependability of histology for range of fire estimation and reinforce using gross observation.     

手枪实用射击训练对射击教学的启示

根据现代警察手枪实用射击训练新内容、新方法,提出在新形势下的公安院校射击教学改革的新思路,改革手枪射击教学训练的内容和方法,有针对性的采取灵活多变的教学方法和教学手段,力求公安院校射击教学有所突破。     

“Does Contain” vs. “Does Not Contain”: Does it Matter which GMO Label is Used?

An analytical framework where heterogeneous consumers are imperfectly informed about product content is used to investigate the welfare effects of a public labeling system. Although a mandatory label that reads Does Contain or one that reads Does Not Contain genetically modified organisms (GMOs) provides information for both the labeled and the unlabeled goods, there is no reason why these labels should cause the same welfare effects. This paper shows that the two labels imply different distortions due to the associated cost of labeling. It is shown that the label Does Contain should be used if the ratio of consumers with a strong reluctance for consuming GMO goods to indifferent consumers is high, while the label Does Not Contain should be used if this ratio is low. Given the findings, the authors argue that current labeling differences in various countries need not be the result of protectionist trade regulations.