What happens if a decision maker does not have the right information, and she does not know that she does not have this information? This type of incomplete information, formally called unawareness, is drawing more and more attention, especially in the literature on bounded rationality and behavioral economics. It is hard to deny that many individuals, such as consumers, investors, patients, wo...

People living with human immunodeficiency virus and acquired immune deficiency syndrome (PLWHA) face numerous social challenges. The objectives of this study were to assess the level of self-disclosure of status by PLWHA, to describe the level and patterns of stigma and discrimination, if any, experienced by the PLWHA and to assess the effect of sero-positivity on the attitude of friends, famil...

Disclosure of HIV status has been the focus of three decades of research, which have revealed its complex relations to many behaviors involved in HIV prevention and treatment, and exposed its central role in managing the HIV epidemic. The causes and consequences of disclosure acts have recently been the subject of several theoretical models. Although it is acknowledged that individual disclosur...

In the disclosure problem already collected data are disclosed only to such extent that the individual privacy is protected to at least a prescribed level. For this problem estimators are introducted which are both simple and efficient.

BACKGROUND The need for a high level of adherence to antiretroviral drugs has remained a major hurdle to achieving maximal benefit from its use in pregnancy. This study was designed to determine the level of adherence and identify factors that influence adherence during pregnancy. METHOD This is a cross-sectional study utilizing a semistructured questionnaire. Bivariate and multiple logistic ...

OBJECTIVES To assess the internal consistency and factor structure of the abridged Spanish version of the Berger HIV Stigma Scale (HSS-21), to provide evidence for its convergent and discriminant validity, and to describe perceived stigma in an urban population from northeast Mexico. METHODS Seventy-five HIV-positive men who have sex with men (MSM) were recruited. Participants answered the Sp...

Applying the Elaboration Likelihood Model (ELM), this study investigated the moderating effects of involvement with an online group-buying (OGB) website in relation to the effects of information disclosure on customers’ OGB intentions. This study collected data consisting of a total of 142 responses from individuals with previous experience with purchasing products from OGB websites, and applie...

Sharing of log data is a valuable step towards the improvement of network security. However, logs often contain sensitive information and organizations are hesitant to share them. Anonymization methods are used for increasing protection, lowering the disclosure risk to a level considered safe. Accordingly, a metric for anonymity is necessary to quantitatively assess the risk before releasing lo...

In recent years, privacy concerns about social network graph data publishing has increased due to the widespread use of such data for research purposes. This paper addresses the problem of identity disclosure risk of a node assuming that the adversary identifies one of its immediate neighbors in the published data. The related anonymity level of a graph is formulated and a mathematical model is...