Circling the wagons or opening the circle

“To approach eudaimonia or human flourishing,” Darcia Narvaez writes, “one must have a concept of human nature… a normal baseline.” This article asks: what is the human baseline so that we may develop public policy to suit and advance human and planetary flourishing? It proposes that our “baseline” is relational, where each person becomes her singular self through networks of relations with others and planet. Relationality is explored through Trinity, covenant, evolutionary biology, and psychology. The article concludes that public policy must be grounded not in “us-them” thinking but in relationality as this is how we are created.     

PHILOSOPHICAL QUESTIONS AND BIOLOGICAL FINDINGS,PART I: HUMAN COOPERATIVITY,COMPETITION, AND AGGRESSION

This Part II of a two-part article illustrates how research in evolutionary biology, anthropology, archeology, and psychology illuminates questions arising in philosophy—specifically questions about René Girard's theory of aggression. Part I looked at: (i) how old the systemic practice of severe aggression is; (ii) how much of it results from humanity's mimetic/social and competitive nature and how much from ecological, resource, and cultural conditions; and (iii) if ecological, resource, and cultural conditions are important, might we adapt this information toward greater cooperativity today? Part II investigates Girard's theory of ritual sacrifice—especially human sacrifice—as a societal steam valve for the systemic aggression explored in Part I. It draws on theories of play, theater, and art to examine the role and function of such ritual sacrifice.     

Long-term rod dark adaptation in man. Threshold measurements, rhodopsin regeneration and allosteric sensitivity regulation. An evaluation

Recent evidence strongly suggests that the relationship between threshold elevation ( T ) and fraction of bleached rhodopsin ( B ), obtained during a major, middle period of long-term rod dark adaptation in man, is well described by a power function, i. e., T = k · Bⁿ , where k is a multiplicative constant and n is the exponent. Due primarily to the low reliability of measurements of rhodopsin regeneration, however, the exponent n of the power function cannot, at present, be given an exact value. Available information indicates that the value of the exponent ranges between 2.4 and 4. Implications of this uncertainty are discussed within the framework of the allosteric, tetrameric model of rod dark adaptation. It is concluded that this model in its simplest form may only offer a first approximation of the real system implicated in the process.