We conduct the first-ever study of actual searches done in a public tax disclosure system, analyzing about one million 2014 and 2015 Norway. characterize social network these comprise, including its degree homophily reciprocation, demographics targets searchers. About one-fourth occur within identifiable household employment networks. Most searchers target people similar to themselves— parlance...

Complex social behaviour of primates has usually been attributed to the operation of complex cognition. Recently, models have shown that constraints imposed by the socio-spatial structuring of individuals in a group may result in an unexpectedly high number of patterns of complex social behaviour, resembling the dominance styles of egalitarian and despotic species of macaques and the difference...

AIM Special care is required in the fabrication of a Class IV Aramany removable partial denture (RPD) in order to minimize the stress distribution to supporting tissues. Using the finite element method, the aim of this study was to analyze the distribution stress to supporting tissues when a Class IV Aramany RPD is worn. METHODS AND MATERIALS Three RPD designs with circumferential cast retain...

BACKGROUND The evolution of altruism has been explained mainly from ultimate perspectives. However, it remains to be investigated from a proximate point of view how and in which situations such social propensity is achieved. We investigated chimpanzees' targeted helping in a tool transfer paradigm, and discuss the similarities and differences in altruism between humans and chimpanzees. Previous...