The Extended Wigner’s Friend thought experiment, comprising a quantum system containing an agent who draws conclusions upon observing the outcome of measurement state prepared in two nonorthogonal versions by another agent, led its authors to conclude that theory cannot consistently describe use itself. It has also been proposed this experiment is equivalent entangled (Bell-type) experiments. a...

Individual privacy settings allow members of Social Networking Sites (SNS) to share personal data with specifically selected contacts, such as close friends. This allows members to use SNS for sharing even more private data they would otherwise not want to share with all of their contacts. Although a considerable part of data sharing activities on SNS is limited to the direct contacts of its me...

The paradox of Wigner’s friend challenges the objectivity of description in quantum theory. A pragmatist interpretation can meet this challenge by judicious appeal to decoherence. On this interpretation, quantum theory provides situated agents with resources for predicting and explaining what happens in the physical world— not conscious observations of it. Even in Wigner’s friend scenarios, di¤...

An online community is a group whose members are connected by means of information technologies, typically the Internet rather than face to face. Online communities allow social and cultural barriers to be spanned for communication. Social communities rely on interpersonal trust to regulate cohesion in their communities. After a general discussion, we offer protocols that extend viability of fr...

We are exploring the use of small displays as an instrument to enhance social communication. Our focus is on encouraging communication between strangers by revealing the existence of common friends. In the following we present the concept of the SocialButton, a wearable mobile device which displays aspects of friend-of-a-friend networks. A group study has provided us with an initial understandi...

BACKGROUND Social support has been widely known as a protective factor for the emotional well-being (EWB) of older adults, but less studies have investigated the roles of different sources of social support (i.e., family and friend support) on different facets of EWB (i.e., positive affect and negative affect) simultaneously. METHODOLOGY AND FINDINGS In this study, the associations between fa...

Let G be a bounded simply-connected domain in the complex plane C, whose boundary Γ := ∂G is a Jordan curve, and let {pn}n=0 denote the sequence of Bergman polynomials of G. This is defined as the unique sequence of polynomials {pn(z)}n=0, with positive leading coefficient, that are orthonormal with respect to the area measure on G. The asymptotic behaviour of pn(z) in the exterior of Γ, in cas...

We have used integral two-point spatial correlation function and its second derivative to analyze the distribution of quasars in three very deep surveys published in the literature. Statistically significant (∼ 2 − 3σ) correlations were found at scales of ∼ 50 − 100h Mpc in all of the analyzed surveys. We have used the friend-of-friend cluster analysis to show that these correlations can be exp...