Social network sites (SNS) allow users to share information with friends, family, and other contacts. However, current SNS sites such as Facebook or Twitter assume that users trust SNS providers with the access control of their data. In this paper we propose Scramble, the implementation of a SNS-independent Firefox extension that allows users to enforce access control over their data. Scramble ...

We investigate the discovery of social clusters from consumer photo collections. People’s participation in various social activities is the base on which social clusters are formed. The photos that record those social activities can reflect the social structure of people to a certain degree, depending on the extent of coverage of the photos on the social activities. In this paper, we propose to...

BACKGROUND Several aspects linked to social are involved in the onset of depressive feelings. We aimed to find out if social adaptability and substance abuse predict depression among end-stage renal disease (ESRD) patients undergoing hemodialysis (HD). METHODS We included 145 ESRD patients undergoing HD. Social adaptability was estimated by the Social Adaptability Index (SAI). Substance abuse...

Background: Several aspects linked to social are involved in the onset of depressive feelings. We aimed to find out if social adaptability and substance abuse predict depression among end-stage renal disease (ESRD) patients undergoing hemodialysis (HD). Methods: We included 145 ESRD patients undergoing HD. Social adaptability was estimated by the Social Adaptability Index (SAI). Substance abuse...

In online Recommender Systems, people tend to consume and rate items that are not necessarily similar to one another. This phenomenon is a direct consequence of the fact that human taste is influenced by many factors that cannot be captured by pure Content-based or Collaborative Filtering approaches. For this reason, a desirable property of Recommender Systems would be to identify correlations ...

To develop and validate an ultra-short measure to assess the Big Five in social network designs, the unipolar items of the Ten-Item Personality Inventory were adapted to create a bipolar single-item scale (TIPI-r), including a new Openness item. Reliability was examined in terms of the internal consistency and test–retest stability of self-ratings and peer-rating composites (trait reputations)....

BACKGROUND The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is a widely used patient reported outcome in osteoarthritis. An important, but frequently overlooked, aspect of validating health outcome measures is to establish if items exhibit differential item functioning (DIF). That is, if respondents have the same underlying level of an attribute, does the item give the...

OBJECTIVES Workplace social capital (WSC) has attracted increasing attention as an organizational and psychosocial factor related to worker health. This study aimed to assess the psychometric properties of a newly developed WSC scale for use in work environments, where bonding social capital is important. METHODS We assessed the psychometric properties of a newly developed 6-item scale to mea...