Social work ‘logged on’: contemporary dilemmas in an evolving ‘techno-habitat’

Information and communication technologies have become an integral part of daily life. This article explores the impact of the social networking site, Facebook, e-mail and text messaging for social workers in the Republic of Ireland. The study is small-scale and the findings, derived from a number of research interviews with practitioners and a survey of social work students, cannot be regarded as representative. However, the findings illuminate key dilemmas which are becoming apparent in social work’s evolving ‘techno-habitat’ and these are likely to be replicated, to different degrees, elsewhere in Europe.     

随机过程的概念解析

通过分析Bernoulli试验对应的随机变量序列,给出随机过程的直观定义导致的矛盾.借助测度论的基本概念系统,解析随机过程的数学定义,给出随机过程样本函数与随机过程实现的概念一致性.     

‘Show me the money and the party!’ – variation in Facebook and Twitter adoption by politicians

Our study explores the adoption of Facebook and Twitter by candidates in the 2013 German Federal elections. Utilizing data from the German Longitudinal Election Study candidate survey fused with data gathered on the Twitter and Facebook use of candidates, we draw a clear distinction between Facebook and Twitter. We show that adoption of both channels is primarily driven by two factors: party and money. But the impact of each plays out differently for Facebook and Twitter. While the influence of money is homogenous for Facebook and Twitter with the more resources candidates have, the more likely they are to adopt, the effect is stronger for Facebook. Conversely, a party’s impact on adoption is heterogeneous across channels, a pattern we suggest is driven by the different audiences Facebook and Twitter attract. We also find candidates’ personality traits only correlate with Twitter adoption, but their impact is minimal. Our findings demonstrate that social media adoption by politicians is far from homogenous, and that there is a need to differentiate social media channels from one another when exploring motivations for their use.     

Determining the effects of intraclass correlation on factorial experiments

This paper considers the effects of the presence of eqmi-correlation between observations in a k-way factorial experiment, A technique to provide unbiased F-tests is also constructed.     

“Like My Status”

This paper engages with the relatively new area of research into teenage girls and online social networks, focusing on the experiences and views of Israelis. In particular, we examine how Israeli girls construct social relationships on Facebook. Adopting a feminist interpretive approach, this qualitative study is based on focus group interviews with Israeli girls aged between twelve and eighteen from diverse cultural, economic, and social backgrounds. The girls clearly distinguish between different circles of social closeness on Facebook, with each circle marked by different relationships, dynamics, and expectations. The study's findings beg the question of whether social networks allow Israeli girls to exercise control, power, choice, and agency in their social world, or whether they remain informed by existing social structures that shape and restrict their choices and actions. The significance of these findings is discussed in the contexts of feminism, girl power, and Neoliberal discourse.     

聚合物/表面活性剂二元复合驱研究进展

从聚合物/表面活性剂二元体系的特点出发，综述了聚/表聚/表二元复合体系的实验室研究现状以及在胜利油田孤东七区54-61进行的矿场试验情况。聚/表二元复合驱是在聚/表/碱三元复合驱的基础上去掉碱所形成的低浓度的驱油体系，可以最大限度地发挥聚合物的粘度和弹性，减少乳化液处理带来的负面影响，减弱由于碱的存在引起的地层以及井筒结垢的现象。通过国内外研究结果分析表明，聚/表二元复合体系提高原油采收率幅度在20%左右；矿场试验取得了较好的效果。聚/表二元复合体系可以克服三元体系的缺点，作为一项新的驱油方法具有宽阔的发展空间。     

论化学实验过程中的理论思维

化学实验不是一种纯粹的感性认识过程,它是在理论思维的指导下对化学的自然本质进行“解剖”的过程,是理论思维的物化。     

卢作孚教育思想及其实践活动述论

近代实业家卢作孚同时也是一位著名的教育家。在 192 5年筹建民生公司以前 ,他是典型而真诚的教育救国论者 ,致力于实业建设后仍以教育为实业的核心。卢作孚的教育活动多姿多彩 ,涉及了民众教育、学校教育、企业教育、社会教育、职业教育等诸多领域 ,期间恰是中国教育转折、反思并通过争鸣和实验而走向中国化探索的关键时期。在我国近现代教育史上 ,卢作孚作为教育家应占有重要地位。     

计算机实验教学中的“人本化”探讨

本文针对目前计算机实验教学中所面临的学生能动性方面的薄弱环节,从"人本化"的理念角度,分析其产生的根源及影响因素,探讨计算机实验教学的"人本化"这一新课题.