Investigating Facebook groups through a random graph model

Facebook disseminates messages for billions of users everyday. Though there are log files stored on central servers, law enforcement agencies outside of the U.S. cannot easily acquire server log files from Facebook. This work models Facebook user groups by using a random graph model. Our aim is to facilitate detectives quickly estimating the size of a Facebook group with which a suspect is involved. We estimate this group size according to the number of immediate friends and the number of extended friends which are usually accessible by the public. We plot and examine UML diagrams to describe Facebook functions. Our experimental results show that asymmetric Facebook friendship fulfills the assumption of applying random graph models.

Engaging Élitism: the Mediating Effect of Work Engagement on Affective Commitment and Quit Intentions in Two Australian University Groups

Some universities rely on their élitism as one mechanism to attract and retain talented faculty. This paper examines two groups of élite and non-élite universities and the mediating effect that work engagement has on affective commitment and intention to quit. Findings indicate partial support for the mediating effect of work engagement in the non-élite group but no support in the élite university group. The implications of these diverse results are posed for the management of academics in élite and non-élite universities, suggesting that a ‘one size fits all approach’ to performance outcomes does not always fit.

Sociodemographic factors associated with healthy eating and food security in socio-economically disadvantaged groups in the UK and Victoria, Australia

Objective
To investigate the associations between sociodemographic factors and both diet indicators and food security among socio-economically disadvantaged populations in two different (national) contextual settings.

Design
Logistic regression was used to determine cross-sectional associations between nationality, marital status, presence of children in the household, education, employment status and household income (four low income categories) with daily fruit and vegetable consumption, low-fat milk consumption and food security.

Setting
Socio-economically disadvantaged neighbourhoods in the UK and Australia.

Subjects
Two samples of low-income women from disadvantaged neighbourhoods: (i) in the UK, the 2003–05 Low Income Diet and Nutrition Survey (LIDNS; n 643); and (ii) in Australia, the 2007–08 Resilience for Eating and Activity Despite Inequality (READI; n 1340).

Results
The influence of nationality, marital status and children in the household on the dietary outcomes varied between the two nations. Obtaining greater education qualifications was the most telling factor associated with healthier dietary behaviours. Being employed was positively associated with low-fat milk consumption in both nations and with fruit consumption in the UK, while income was not associated with dietary behaviours in either nation. In Australia, the likelihood of being food secure was higher among those who were born outside Australia, married, employed or had a greater income, while higher income was the only significant factor in the UK.

Conclusions
The identification of factors that differently influence dietary behaviours and food security in socio-economically disadvantaged populations in the UK and Australia suggests continued efforts need to be made to ensure that interventions and policy responses are informed by the best available local evidence.

A qualitative evaluation of online chat groups for women completing a psychological intervention for female sexual dysfunction

Because of the embarrassment that can surround female sexual dysfunctions, online interventions offer an anonymous and private treatment alternative. Recently, an online cognitive-behavioral treatment for female sexual dysfunctions was evaluated. Although significant improvements were observed in sexual functioning, the treatment was primarily a behavioral intervention because of difficulties with engaging participants in cognitive therapy over e-mail. To address this limitation, the use of chat groups was incorporated into a new online treatment for female sexual dysfunctions—the PursuingPleasure program. Thirty-eight women participated in the PursuingPleasure chat groups. The goals of the chat groups were to address and overcome challenges as women progressed through PursuingPleasure and to create a social support network where group therapy processes could be used. The chat groups aimed to address misunderstandings, monitor changes, and receive feedback. A qualitative analysis of the chat groups revealed that they helped to facilitate the cognitive-affective aspects of the program, as well as fulfill their other intended functions. This study demonstrates how the use of chat groups in the online treatment of female sexual dysfunctions is a useful addition to Internet-based treatment. Feedback suggests that the chat groups were one of the most helpful aspects of the program, although a small group of women reported finding the groups unhelpful.

Fostering resilience later in life: a narrative approach involving people facing disabling circumstances, carers and members of minority groups

Over the last two decades, the concept of resilience has become the focus of a growing body of gerontological research. However, there is a dearth of qualitative research that explores how socio-economic and socio-cultural factors shape older people's resilience. This study addresses this gap and explores the concept of resilience through the lens of 25 Australians from a variety of backgrounds, investigating the resilience strategies they employed in the face of different challenging life events. A qualitative narrative methodology involving one focus group and semi-structured interviews was employed. A stratified convenience sample of 34 people aged 60 and over participated in semi-structured interviews between 2009 and 2011. The study describes the meaning participants assigned to the term resilience, and focuses on the range of resilience responses and strategies they employed, bringing to light some key commonalities and differences. The study's findings suggest that access to economic and cultural resources and the nature of the adversity older people face can shape and limit their resilience strategies. The article outlines how the concept of resilience could be incorporated into aged care practice and argues that resilience-focused interventions that potentially broaden the resilience repertoire of older people should be explored within an aged care context.

Differences in health behaviours between immigrant and non-immigrant groups: a protocol for a systematic review

Health behaviours are important determinants of health and adoption of unhealthy behaviour is considered as one of the mechanisms through which immigrants' health changes over time in the host country. The change in health behaviours over time can contribute either to improving or worsening the overall health status of immigrants. Despite being the important mediators for the change in overall health status and chronic health conditions, no previous review (either general or systematic) has examined differences in key health behaviours simultaneously between immigrants and non-immigrants. This study aims to provide a systematic overview of the current global literature on differences in key health behaviours (that is, tobacco smoking, physical activity and alcohol drinking) between immigrant and non-immigrant groups.

Sociocultural influences on strategies to lose weight, gain weight, and increase muscles among ten cultural groups

This study determined how sociocultural messages to change one's body are perceived by adolescents from different cultural groups. In total, 4904 adolescents, including Australian, Chilean, Chinese, Indo-Fijian, Indigenous Fijian, Greek, Malaysian, Chinese Malaysian, Tongans in New Zealand, and Tongans in Tonga, were surveyed about messages from family, peers, and the media to lose weight, gain weight, and increase muscles. Groups were best differentiated by family pressure to gain weight. Girls were more likely to receive the messages from multiple sociocultural sources whereas boys were more likely to receive the messages from the family. Some participants in a cultural group indicated higher, and others lower, levels of these sociocultural messages. These findings highlight the differences in sociocultural messages across cultural groups, but also that adolescents receive contrasting messages within a cultural group. These results demonstrate the difficulty in representing a particular message as being characteristic of each cultural group.

An effective program design to support older workers with intellectual disability to participate individually in community groups

The foreshadowed increase of older people with intellectual disability has become a reality in many developed countries. As these adults age, improved quality of life can be achieved through applications of conjoint policy aims of inclusion and participation. A transition-to-retirement (TTR) program developed for employees of a large multisite disability employment service in Sydney, Australia, used these aims to effect successful partial retirement. The authors describe the program logic of the TTR, detailing its conceptual components as the first step to enabling it to be tested and replicated in other settings. The TTR program has three components: promoting the concept of retirement, laying the groundwork for inclusion of would-be retirees with intellectual disability in the community, and constructing the reality. The third component comprised five stages: planning, locating a group, mapping new routine, recruiting and training mentors, and monitoring and ongoing support. The project's participants were 24 older employees, who replaced 1 day a week of work with membership of a community group and were supported by mentors who facilitated involvement of the participants in their group. Data collected provided information on the implementation of the program, the time and costs expended, and challenges encountered. Key to the model was a coordinator, skilled in generic case management and specific disability interventions (such as active support), who collaborated with others to manage the program. The authors note that by detailing the program logic underpinning the TTR program, they have exposed the hidden work of supporting meaningful inclusion of people with intellectual disability in community groups and added to the limited stock of evidence-informed programs in this area. © 2014 International Association for the Scientific Study of Intellectual and Developmental Disabilities and Wiley Periodicals, Inc.

Writing groups, change and academic identity: research development as local practice

The development of the research potential of university staff has been given less attention than many other aspects of professional development, particularly teaching development. Yet there is an important need for the development of staff in the research role in the light of growth of higher education and changes to the organisation of the sector in many countries. This article examines one strategy for research development: the use of writing groups. It argues that writing is best seen as a starting point, rather than an endpoint, of the research process and hence that fostering academic writing is a useful place to do research development work. The article provides details of the use of a number of writing groups over three years in a particular faculty and explores the responses of leaders and participants. It identifies factors important in the use of this strategy and focuses on the contextual conditions required for initiatives of this kind to be effectively implemented.