Integration period of e-learning in universities： A survey in Turkey

E-learning is an important subject for successful university education. It is known that during the integration period of e-learning, universities face difficulties and trade-offs that will discourage their adoption. This study concentrates on e-learning with benefits and problems faced throughout the integration period by stakeholders and finally the university as a new education program method. The study aims to look at the factors which affect the integration period of e-learning programs and measure the drivers that affect the adoption process The research method is based on quantitative analysis which generally searches information about the factors＇ effectiveness related to the integration level of e-learning. During the empirical analysis, factors are categorized and measured according to their effectiveness, and then questionnaire study has examined the factors＇ effectiveness related to the adoption success of e-learning by using statistical analysis methods. The information about the factors that is effective for e-learning integration provides considerable educational framework for universities, instructors, students and also for information technology experts and other decision makers that manage the electronic environment for e-learning.     

92式手枪射击距离与射击残留物分布密度相关性的研究

目的研究92式手枪射击距离与射击残留物分布密度的相关性,为射击距离的推断提供依据。方法选择92式手枪,在带皮的猪肉上覆盖白色棉布,设计了0m,0．1m,0．2m,0．5m,1．0m,1．5m,3．0m,5．0m,10m,15．0m,20．0m,25．0m共12个距离进行射击,提取白棉布上的弹孔圆周和距弹孔2cm的圆周上的射击残留物,利用扫描电镜／能谱仪对不同射击距离遗留在白棉布上的射击残留物进行检验。结果白棉布上射击残留物分布密度与射击距离呈负相关的关系。结论根据棉布上射击残留物的分布密度,能够推断射击距离,对涉枪案件中射击距离的判断有一定的参考价值。     

五四、六四、七七式手枪射击残留物极限距离的分析研究

射击残留物是指在客体上沉积的射击物屑。在贴近射击和近距离射击时,弹孔的周围会留下射击残留物。通过对54、64、77式三种手枪在的确良布上多个距离的射击实验,以射击残留物能否嵌入、粘附、遗留作为分段依据,进行观察统计,确定射击残留物的极限距离。对于分析案情,区别案件的性质提供材料数据。     

Disappearing nature? Agribusiness,biotechnology and distance in Argentine soybean production

A recent trend identified in the agro-food literature is that financialization in the global food system is further increasing the distance between farm and plate as well as abstracting physical commodities into market derivatives. How does food, a basic material need, become a commodity, a financial asset divorced from its physical form? This contribution explores the growing distance and abstraction of food from farm using Argentina's soy model as a case study. I explore the various drivers of distancing across the soy value chain in Argentina, including industrialization, globalization, corporatization and finance. I argue that the push for technological innovation by large-scale agribusinesses, in articulation with financial sector involvement, are both an example of and are instrumental in the process of distancing and abstraction identified in the agro-food literature. This paper also highlights how, despite agribusiness efforts to ‘displace’ and ‘disappear’ nature, these processes are never fully accomplished. I thus reflect on the socio-ecological contradictions that arise from the processes of distancing and abstraction which accompany the financialization of the corporate food system under neoliberal globalization.     

THE DIFFERENTIAL RISK OF RETALIATION BY RELATIONAL DISTANCE: A MORE GENERAL MODEL OF VIOLENT VICTIMIZATION*

This research attempts to elaborate a routine activity model of violent victimization by incorporating an explicit rational choice perspective on potential targets’ decision making to avoid violent encounters. We propose that the costs associated with a violent attack and the probability of offender retaliation depend on whether the offender's targeting strategy is opportunistic or deliberate—a function of the relational distance between the offender and target. Specifically, we propose that victim efforts to limit exposure to an offender may motivate a violent retaliatory response when the victim and offender are intimates compared to when they are strangers. We develop hypotheses based on these ideas and test them using data from the National Crime Victimization Survey (1992–2000). The results suggest that female targets are more sensitive to an offender's targeting strategy than are males. We conclude with a discussion of how knowledge of the potential risk of violent retaliation on the part of intimate and spousal offenders can be used to create more efficacious policies to protect victims of violence.     

电大远程开放教育面授辅导教学方式的探析

电大远程开放教育利用网络、远程教学等技术手段，给学生提供了便利的学习平台，但相应面授辅导教学滞后。应改变面授教学模式，树立以学生为中心的教学理念，将学生的需求作为课堂教学设计的依据，使面授教学做到“量体栽衣”，更具有针对性。在教学中加入多种生动有效教学元素，由被动学变为主动学，这样才能取得预期效果。     

Face recognition as a function of distance and illumination: A practical tool for use in the courtroom

Abstract

This paper describes a practical courtroom tool that provides insight in face recognition accuracy as a function of distance and illumination. Subjects were shown 3/4 target portraits with an exposition time of 12 seconds, immediately followed by a target-absent or target-present lineup of six full-face portraits. Subjects were asked to identify the target. Seven distances (3 to 40 meter) and nine illumination levels (0.3 to 3000 lux) were used which resulted in a 7?9 matrix, with in the cells a hit score and a false alarm score. From these rough data several other measures were derived, like d-prime, diagnostic value and some idealised scores. The scores represent the upper margins of recognition accuracy with the memory component reduced to a minimum. The results clearly indicate a systematic increase of recognition performance with decreasing distance and increasing illumination. The end result is a practical rule of thumb, the Rule of Fifteen: Even in ideal conditions the desired diagnostic value of 15 is reached at not more than 15 meters, not less than 15 lux.     

当前我国居民收入分配不公的原因透视及治理对策

透视中国的四次收入分配过程 ,可见 ,市场竞争的初始条件的差异、政府的再分配政策、以及各种违法犯罪活动是形成收入分配不公的主要原因。为此 ,应建立城乡居民最低生活保障制度、完善个人所得税制、扩大就业机会、增加农民收入、支持中西部发展以及加强权力监督和整顿市场秩序等切实可行的对策 ,来解决收入分配不公 ,缩小收入差距 ,确保社会主义市场经济的效率与公平协调统一 ,促进国民经济的健康发展。     

Decolonising online development studies? Emancipatory aspirations and critical reflections – a case study

Academics in high-income countries are increasingly launching development studies programmes through online distance learning to engage practitioner-students in low-income countries. Are such initiatives providing opportunities to critically tackle social injustice, or merely ‘mirroring’ relations of global inequality and re-entrenching imperial practices? Building on recent scholarship addressing efforts to ‘decolonise development studies’ and the complex power dynamics they encounter, we reflect on this question by analysing experiences of faculty and students in a United Kingdom-based online development studies programme, focusing particularly on perspectives of development practitioner-students working from Africa. We discuss barriers to social inclusivity – including the politics of language – that shaped participation dynamics in the programme as well as debates regarding critical development course content, rethinking possibilities for bridging counter-hegemonic development scholarship with practice-oriented approaches in a range of social contexts. Our analysis unpacks key tensions in addressing intertwined institutional and pedagogic dilemmas for an agenda towards decolonising online development studies, positioning decolonisation as a necessarily unsettling and contested process that calls for greater self-reflexivity.