Altruistic donation of organs from living donors is widely accepted as a virtue and even encouraged as a duty. Selling organs, on the other hand, is highly controversial and banned in most countries. What is the Jewish legal (halachic) position on these issues? In this review it is explained that altruistic donation is praiseworthy but in no way obligatory. Selling organs is a subject of rabbin...

The role of ecological constraints in promoting sociality is currently much debated. Using a direct-fitness approach, we show this role to depend on the kin-discrimination mechanisms underlying social interactions. Altruism cannot evolve under spatially based discrimination, unless ecological constraints prevent complete dispersal. Increasing constraints enhances both the proportion of philopat...

How did human cooperation evolve? Recent evidence shows that many people are willing to engage in altruistic punishment, voluntarily paying a cost to punish noncooperators. Although this behavior helps to explain how cooperation can persist, it creates an important puzzle. If altruistic punishment provides benefits to nonpunishers and is costly to punishers, then how could it evolve? Drawing on...

The organ donor shortage has been the most important hindrance in getting listed patients transplanted. Living kidney donors who are incompatible with their intended recipients are an untapped resource for expanding the donor pool through participation in transplant exchanges. Chain transplantation takes this concept further, with the potential to benefit even more recipients. We describe the f...

Many animals show altruistic behavior by using signals, such as alarm calls. However, few study have discussed the coevolution of altruistic behavior and common words among agents, although many studies have discussed how altruism have evolved. In this study we performed simulation experiments in order to explore the condition of the emergence of altruistic behavior with common words between ag...

We study numerically and analytically a stochastic group selection model in which a population of asexually reproducing individuals, each of which can be either altruist or non-altruist, is subdivided into M reproductively isolated groups (demes) of size N . The cost associated with being altruistic is modelled by assigning the fitness 1 − τ , with τ ∈ [0, 1], to the altruists and the fitness 1...

This study aims to build the new concept of sharia value added. Value added is main measuring income find out performance an entity. Meanwhile, economic, mental and spiritual The kaamilah with Qur'anic morals a construction concept. used qualitative method type literature research, namely research in which data collection was carried by collecting from various literatures. results this were mor...

Green consumption such as buying green food, purchasing eco-label products, recycled or zero-wasted shopping is becoming more common in developing countries. The paper, using value theory, identity theory and self-regulation aims to develop validate an integrative theoretical model that explain consumer willingness pay purchase behavior. A cross-sectional survey with PLS-SEM analysis of 279 ind...

UNLABELLED Current psychological concepts of social and ecological responsibility emphasize the relevance of altruism, suggesting that more altruistic individuals are more likely to engage in sustainable behaviors. Emerging evidence indicates a central role of the neuropeptide oxytocin in promoting altruism. Whether this influence extends to ecological responsibility or is limited to the social...