完善刑事被害人社会救助制度的思考

我国的社会救助制度已经可以在一定的程度上对刑事被害人实施社会救助。但存在的问题是:在治疗费用、生活照顾和心理救助方面考虑不够。完善刑事被害人社会救助制度的基本思路是:在医疗保险制度中明确规定,刑事被害人也属于医疗保险的保障范围;建立刑事被害人生活照顾制度;建立刑事被害人心理救助制度。     

Perceived group cohesion versus actual social structure: A study using social network analysis of egocentric Facebook networks

Research on group cohesion often relies on individual perceptions, which may not reflect the actual social structure of groups. This study draws on social network theory to examine the relationship between observable structural group characteristics and individual perceptions of group cohesion. Leveraging Facebook data, we extracted and partitioned the social networks of 109 participants into groups using a modularity algorithm. We then surveyed perceptions of cohesion, and computed group density and size using social network analysis. Out of six linear mixed effects models specified, a random intercept and fixed slope model with group size as a predictor of perceived group cohesion emerged as best fitting. Whereas group density was not linked to perceived cohesion, size had a small negative effect on perceived cohesion, suggesting that people perceive smaller groups as more cohesive. We discuss the potential of social network analysis, visualization tools, and Facebook data for advancing research on groups.     

How dominance hierarchies emerge from conflict: A game theoretic model and experimental evidence

We develop a game theoretic model of conflict and empirically test its predictions to study the emergence of social hierarchies in small groups. Previous research shows uncertainty about actors' ability may lead to more conflict; conflict demonstrates actors' ability and establishes relationships of dominance and submissiveness. Since we assume uncertainty regarding ability to be a crucial cause of conflict, we focus on the effects of different information conditions. We posit that actors know the distribution of abilities in their group and vary whether or not they know (1) their own ability and (2) their interaction partners' interaction histories. Our results from a laboratory experiment closely match qualitative model predictions. Most importantly, conflict produces information about actors’ ability, which reduces subsequent conflict. In an exploratory analysis we investigate to what extent gender, social value orientation, risk preferences and a competitive personality account for the quantitative discrepancies between model predictions and subject behavior.     

Mobile use,personal values,and connectedness with civic life

This study aims to examine whether and how mobile communication enables citizens to translate their value orientations into their connectedness to the civic life. Specifically, we probe the indirect process in which different types of personal values predict key dimensions of engagement with civic affairs through patterns of mobile phone use. We show that individualism is indirectly associated with engagement with civic affairs through informational mobile use, whereas the link between collectivism and community involvement is positively intervened by relational mobile use. Additionally, socio-tropic empathy yields indirect relationships with civic engagement through informational mobile use. Implications of these findings are discussed.     

Linking young individuals' capital to investment intentions: Comparing two cultural backgrounds

By integrating the Entrepreneurial Intentionality Model and the Theory of Planned Behaviour, we explored the effects of human, social and financial capital on young individuals' investment intentions in two groups (97 English and 97 Greeks). Results indicated that human capital is directly and indirectly related to investment intentions via, first, subjective norms and, consequently, personal attitudes and perceived behavioural control, while social capital is only indirectly related to investment intentions via perceived behavioural control. In the individualistic group (English), human capital related directly and positively with investment intentions while social capital related indirectly to investment intentions via its positive relationship to subjective norms. With regard to participants from a collectivistic background (Greeks), human capital related indirectly to investment intentions via, first, subjective norms and, consequently, personal attitudes and perceived behavioural control, while social capital related directly and indirectly to investment intentions via perceived behavioural control. Financial capital was only negatively related to investment intentions in the total and Greek sample.     

Estimation of system reliability for exponential distributions based on L ranked set sampling

Abstract

In the case where strength and stress both follow exponential distributions, this paper considers the maximum likelihood estimator (MLE) of the system reliability based on L ranked set sampling (LRSS). The proposed MLE is shown to have existence, uniqueness and asymptotic normality, and its asymptotic variance is obtained by the Fisher information matrix of LRSS. The values of asymptotic relative efficiencies show that the proposed MLE is always more efficient than the MLE using simple random sampling (SRS). However, the MLE using LRSS cannot be written in closed form. Therefore, the modified MLE is proposed using the technique replaced some terms in the maximum likelihood equations by their expectations. The newly modified MLE using LRSS is shown to be superior to the MLE using SRS. Finally, the proposed method is applied to a real data set on metastatic renal carcinoma study.     

Rumour and decertification in exile politics: evidence from the Egyptian case

ABSTRACT

Does exile affect activism and if so how? In this paper, the case of Egyptian activists exiled in England is taken as illustrative of processes typical of exiled activism. The case study draws on primary and secondary sources including a series of biographical interviews with exiled activists. The analysis compares activism in Egypt with exiled activism in England using the participants’ critical self-reflections to explain the mechanisms mediating the changes. Contrary to reasonable expectations that exile is a spontaneous response to a change in political context, the conditions for exile predate banishment and lie within the institutions of dictatorship which decertify activism. Decertification continues throughout the exile process as fear of repression becomes internalized within the movement. Within the sanctuary of the host country, a process of brokerage counteracts decertification expanding and modifying the exile repertoire.     

A sampling plan for one-shot systems considering destructive inspection

Abstract

The paper is concerned with an acceptance sampling problem under destructive inspections for one-shot systems. The systems may fail at random times while they are operating (as the systems are considered to be operating when storage begins), and these failures can only be identified by inspection. Thus, n samples are randomly selected from N one-shot systems for periodic destructive inspection. After storage time T, the N systems are replaced if the number of working systems is less than a pre-specified threshold k. The primary purpose of this study is to determine the optimal number of samples n*, extracted from the N for destructive detection and the optimal acceptance number k*, in the sample under the constraint of the system interval availability, to minimize the expected cost rate. Numerical experiments are studied to investigate the effect of the parameters in sampling inspection on the optimal solutions.     

Towards standardization of field work practicum: experiential reflections from Delhi,India

ABSTRACT

Field work is the signature pedagogy of social work. As a central form of instruction, it enables the course of learning by enabling the students to perform the role of practitioner. Field work contains pedagogical norms with which students learn to connect and integrate theory and practice. The current paper delineates the pedagogy of field work practicum in the Indian context and attempts to explore the challenges in transaction of field work curriculum with respect to placement agencies, at the levels of supervisor and supervisee and the ever evolving and dynamic relationship between the two. Based on authors’ experiential accounts, the paper recommends few strategies for enhancing the scope of professional growth and learning within the broad realms of field work placement.