The social environment is a key feature influencing primate life histories. Chacma baboons (Papio hamadryas ursinus) are a female-bonded species with a strict linear dominance hierarchy. In this species, the allocation of energy to competing demands of growth and reproduction is hypothesized to vary as a function of competitive ability, which in turn increases with social rank. Since growth rat...

This paper introduces the rank-dependent quality-adjusted life-years (QALY) model, a new method to aggregate QALYs in economic evaluations of health care. The rank-dependent QALY model permits the formalization of influential concepts of equity in the allocation of health care, such as the fair innings approach, and it includes as special cases many of the social welfare functions that have bee...

Technological advances have led to an increasing development of data sources. Since the introduction of social networks, numerous studies on the relationships between users and their behaviors have been conducted. In this context, trip behavior is an interesting topic that can be explored via Location-Based Social Networks (LBSN). Due to the wide availability of various spatial data sources, th...

In this paper, we propose three new tensor decompositions for even-order tensors corresponding respectively to the rank-one decompositions of some unfolded matrices. Consequently such new decompositions lead to three new notions of (even-order) tensor ranks, to be called the M-rank, the symmetric M-rank, and the strongly symmetric M-rank in this paper. We discuss the bounds between these new te...

In many studies on social demeanour it is overlooked how complex social behaviour may result from simple self-reinforcing interactions between entities. In this paper an individualoriented computer model is used to study whether the spatial dynamics between artificial agents and their autocatalytic interactions may result in a rank-related differentiation of social-activity profiles and ‘repaym...

This paper examines the obstacles of marriage and analyzes the tendency towards marriage in Hamedan Province. This paper uses survey data required a sample of 400 young individuals by using a multistage cluster sampling and stratified random sampling. The main obstacles of marriage in this study in terms of priority, were cultural obstacles with an average rank (4.94), social obstacles with an ...

The brain nanopeptides arginine vasotocin and isotocin are considered to be involved in the regulation of social and reproductive behavior in teleosts. We investigated the immunoreactivity of brain arginine vasotocin and isotocin neurons in four pairs of the protandrous false clown anemonefish Amphiprion ocellaris (Cuvier, 1830). After 450 days of pairing, the social rank of each individual was...

The presence of hierarchy is a ubiquitous feature of human social groups. An evolutionary perspective provides novel insight into the nature of hierarchy, including its causes and consequences. When integrated with theory and data from social psychology, an evolutionary approach provides a conceptual framework for understanding the Advances in Experimental Social Psychology, Volume 54 # 2016 El...

The complex nature of organizational culture challenges our ability to infer its underlying dynamics from observational studies. Recent computational studies have adopted a distinctly different view, where plausible mechanisms are proposed to describe a wide range of social phenomena, including the onset and evolution of organizational culture. In this spirit, this work introduces an empiricall...