Pigeons' preference for variable-interval water reinforcement under widely varied water budgets.

Water budget of pigeons was varied to assess the dependence of risk-sensitive preferences upon economic context such as has been reported for energy-budget manipulations with small animals in behavioral ecology research. Fixed- and variable-interval terminal-link water schedules reinforced choice between equal variable-interval initial-link schedules arranged on two pecking keys. While keeping a severely restrictive budget the same across three phases of the experiment, a contrasting distinct ample budget was arranged in each. To mimic typical methods in behavioral ecology studies, in each ample budget a more than three-fold increase in amount of water per reinforcer presentation was instituted simultaneously with significantly increased overall access to water. Total choice response rates plummeted in the ample budgets, and body weights either increased significantly or remained unchanged in different phases as expected by the nature of the different manipulations. Clear preferences for the variable-interval schedule were found throughout the experiment, except for rare instances of key bias. The results agree with similar operant food-reinforcement studies and extend conditions under which risk preference apparently does not depend upon economic context.     

明代初期道德生活的政治导向

明代道德生活的偏执性,在中国历史上极其特殊的。追根溯源,是明代初期政治生活的特殊性所引发的。分封、废相、厂卫、教化、粮长等制度的改革与创设,不同程度地将社会道德生活引入了无以复加的偏执境地。     

TOWARD AN EVOLUTIONARY ECOLOGY OF MEANING

Abstract. I will discuss some of the implications of the ongoing Darwinian revolution for theology as a constructor and interpreter of human meaning. Focus will be directed toward the following issues: How should we best understand ourselves in the new, evolutionary cosmos? What are the problems with the kind of genetic reductionism espoused by neo-Darwinism? How are those problems resolved by the “relational” understanding of life made available by thermodynamics and ecology? How do we generate meaning-structures in this relationally-constituted cosmos? Finally, how do these developments enrich our understandings of responsibility—to each other and to our private conceptions of God?     

The Reaction of the Youth in Israel to the Assassination of Prime Minister Yitzhak Rabin

The assassination of Israeli Prime Minister Yitzhak Rabin by a political assassin caused shock, disbelief, and deep grief to the Israeli people. Particularly prominent was the reaction of the youth, who gathered in large crowds, at the site of the murder and in other places, and engaged in various mourning behaviors of a ritual nature. This drew the attention of the media in Israel and around the world. A study of approximately 700 teenagers conducted after the assassination examined their emotional reactions, participation in ritualistic mourning activities, and assessments of the reasons for feeling shocked. In all areas, differences were found as a function of gender, and attitudes toward Rabin's peace policy. An attempt was made to explain the youth's behavior in terms of the formation of groups and group identity.     

Celebrity and Political Psychology: Remembering Lennon

This article is a contribution toward the task of constructing a distinctive political psychology and social theory of celebrity. The article begins by noting some recent approaches to the analysis of mass communications in political theory, and moves to consider what these theories mean for the conceptual analysis of celebrity. A substantive example of the political construction of celebrity is given in a case study of the ex-Beatle, John Lennon—specifically, the social drama surrounding his death in 1980. A number of issues, ranging from the denial of death in modernity to the multiplex modes of cultural remembering, are discussed as they relate to celebrity.     

The Effects of Investments in theSocial Capital of Youth on Political and Civic Behavior in Young Adulthood: A Longitudinal Analysis

This paper uses the National Education Longitudinal Study to examine whether early investments in the social capital of young people produce greater political involvement and civic virtue in young adulthood. Parental involvement in a young person's life, youth religious involvement, and voluntary association participation were some of the forms of social capital hypothesized to influence adult political behavior. Structural equations modeling was used to trace the effects of the presence of social capital as early as the 8th grade year in shaping young adult political and civic behavior. The analysis shows that early extensive connections to others, close familial relationships, religious participation, and participation in extracurricular activities in one's youth are significant predictors of greater political and civic involvement in young adulthood.     

Behavior systems and reinforcement: an integrative approach.

Most traditional conceptions of reinforcement are based on a simple causal model in which responding is strengthened by the presentation of a reinforcer. I argue that reinforcement is better viewed as the outcome of constraint of a functioning causal system comprised of multiple interrelated causal sequences, complex linkages between causes and effects, and a set of initial conditions. Using a simplified system conception of the reinforcement situation, I review the similarities and drawbacks of traditional reinforcement models and analyze the recent contributions of cognitive, regulatory, and ecological approaches. Finally, I show how the concept of behavior systems can begin to incorporate both traditional and recent conceptions of reinforcement in an integrative approach.     

Enumeration and simulation methods for 0–1 matrices with given marginals

Data in the form of zero-one matrices where conditioning on the marginals is relevant arise in diverse fields such as social networks and ecology; directed graphs constitute an important special case. An algorithm is given for the complete enumeration of the family of all zero-one matrices with given marginals and with a prespecified set of cells with structural zero entries. Complete enumeration is computationally feasible only for relatively small matrices. Therefore, a more useable Monte Carlo simulation method for the uniform distribution over this family is given, based on unequal probability sampling and ratio estimation. This method is applied to testing reciprocity of choices in social networks.The author wishes to thank Cajo ter Braak and John Birks for pointing out the relevance of this subject for ecology; and also Albert Verbeek and Ivo Molenaar, a referee, the Editor, and the Associate Editor for their comments. An earlier version of this paper was presented at the Stockholm Conference on Random Graphs and Applications (April 25–27, 1989), organized with financial support from the Swedish Council of Research in the Humanities and the Social Sciences.     

ECOLOGICAL SAINTS: ADOPTING A GREEN GAZE OF THE LIFE AND WRITINGS OF SAINT MARGUERITE BOURGEOYS

During this time of ecological crisis, spiritual guides are needed to provide inspiration and impel action. In the Roman Catholic tradition, saints act as role models and are associated with particular causes, locations, or professions. Who, then, are the ecological saints, whose witness can inspire hope and action in support of the environment? This article explores that question in two ways. First the writings and accounts of saints who are traditionally connected to the environment are examined to produce six indicators of the beliefs, characteristics, and actions of ecological saints. Second, a green gaze is applied to Saint Marguerite Bourgeoys, a seventeenth-century educator who lived in what would become Montreal, Canada, by comparing her writings and accounts of her life to the six indicators of an ecological saint. Identifying more ecological saints can promote environmental responsibility, and the six indicators of an ecological saint can be the lens through which beloved saints are re-examined.     

ESCHATOLOGY IN THE POLITICAL THEORY OF MICHAEL WALZER

This essay examines the relevance of eschatological themes to the political theory of Michael Walzer. A distinctive eschatological hope is identified, which functions as a guide to thought throughout Walzer's writings, even though he seldom expresses it (and sometimes denies it). This analysis of Walzer's work demonstrates that eschatology is relevant to the contemporary discussion of justice, and conversely, that contemporary political theory can be a guide for the construction and evaluation of theological doctrines of eschatology. Any eschatology that enters into political debate in a modern, pluralistic society like the United States, however, must have at least one important characteristic: it must be informed by a profound sense of limitation.