OBJECTIVE To assess and compare the attitudes and trust that African American and white parents have toward their children participating in research. DESIGN Self-administered, cross-sectional survey of a convenience sample of parents. SETTING Primary Care Center at Children's Hospital of Pittsburgh from August 2004 through April 2005. PARTICIPANTS One hundred ninety parents (140 African A...

Complex networks are becoming indispensable parts of our lives. The Internet, wireless (cellular) networks, online social networks, and transportation networks are examples of some well-known complex networks around us. These networks generate an immense range of big data: weblogs, social media, the Internet traffic, which have increasingly drawn attentions from the computer science research co...

Trust Networks are a specific kind of social network where edges in the network have positive and negative signs connoting friendship/trust and antagonism/distrust respectively. While the last few years have seen a rich body of work on generative models for social networks, there hasn’t been much work on understanding in what ways trust networks differ from social networks and to create generat...

Numerous real-world relations can be represented by signed networks with positive links (e.g., trust) and negative links (e.g., distrust). Link analysis plays a crucial role in understanding the link formation and can advance various tasks in social network analysis such as link prediction. The majority of existing works on link analysis have focused on unsigned social networks. The existence o...

According to transaction cost economics, contracts are always incomplete and offer opportunities to defect. Some level of trust is a sine qua non for trade. If the seller is better informed about product quality than the buyer, the buyer has to rely on information the seller provides or has to check the information by testing the product or tracing the supply chain processes, thus incurring ext...

Non-allopathic treatment methods still play a substantial role in management of orthopaedic injuries in Sri Lanka despite the provision of free allopathic health care in state sector. Traditional healing (‘deshiya chikithsa’/‘Sinhala wedakama’) has been practiced for centuries, well before the establishment of allopathic system [1]. These physicians are highly patronised on cultural background,...

Although trust plays a pivotal role in many aspects of life, very little is known about the manifestation and distrust everyday life. In this work, we integrated several prior approaches to investigated prevalence key determinants (vs. distrust) people’s natural environments, using preregistered experience-sampling methodology. Across more than 4,500 social interactions from heterogeneous sampl...