Shape of (101955) Bennu indicative of a rubble pile with internal stiffness

The shapes of asteroids reflect interplay between their interior properties and the processes responsible for their formation and evolution as they journey through the Solar System. Prior to the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) mission, Earth-based radar imaging gave an overview of (101955) Bennu’s shape. Here we construct a high-resolution shape model from OSIRIS-REx images. We find that Bennu’s top-like shape, considerable macroporosity and prominent surface boulders suggest that it is a rubble pile. High-standing, north–south ridges that extend from pole to pole, many long grooves and surface mass wasting indicate some low levels of internal friction and/or cohesion. Our shape model indicates that, similar to other top-shaped asteroids, Bennu formed by reaccumulation and underwent past periods of fast spin, which led to its current shape. Today, Bennu might follow a different evolutionary pathway, with an interior stiffness that permits surface cracking and mass wasting

Sex doll ownership: an agenda for research

Purpose of review: The topic of sex doll ownership is becoming an increasingly discussed issue from both a social and legal perspective. This review aims to examine the veracity of the existing psychological, sexological, and legal literature in relation to doll ownership. Recent findings: Strong views exist across the spectrum of potential socio-legal positions on sex doll ownership. However, there is an almost total lack of empirical analyses of the psychological characteristics or behavioral implications of doll ownership. As such, existing arguments appear to represent the philosophical positions of those scholars expressing them, rather than being rooted in any objective evidence base. Summary: Despite an absence of empirical data on the characteristics and subsequent effects of doll ownership, discussions about the ethical and legal status of doll ownership continue. This highlights a real and urgent need for a coherent research agenda to be advanced in this area of work

Facebook Addiction and Subjective Well-Being: a Study of the Mediating Role of Shyness and Loneliness

Within the rise of social networking sites, Facebook has gained a huge amount of popularity and Facebook has been matched with an expanding body of research. Nevertheless, research examining the complex relationships between Facebook addiction and well-being is still insufficient. Previous studies have focused on the direct relationships between Facebook addiction, shyness, loneliness, and subjective well-being. However, no empirical study has dealt with the mediating effect of shyness and loneliness on the relationship between Facebook addiction and subjective well-being. Thus, the present study has examined whether shyness and loneliness mediated the relationship between Facebook addiction and subjective well-being. Our theoretical model was tested using data collected from 280 Turkish university students. Participants completed the Bergen Facebook Addiction Scale, the Satisfaction with Life Scale, the Positive and Negative Affect Schedule, the Shyness Scale, and the UCLA Loneliness Scale. The hypothesized model was tested using structural equation modeling and bootstrapping. Structural equation modeling results provide evidence of indirect effects of Facebook addiction on subjective well-being fully mediated by shyness and loneliness. Bootstrapping showed that Facebook addiction exerted a significant indirect effect on subjective well-being via shyness and loneliness. The findings emphasized the role of youth shyness and loneliness in explaining the relationship between Facebook addiction and subjective well-being. Limitations, implications, and future directions were discussed