The First-Order Theories of Dedekind Algebras

A Dedekind Algebra is an ordered pair (B,h) where B is a non-empty set and h is an injective unary function on B. Each Dedekind algebra can be decomposed into a family of disjoint, countable subalgebras called configurations of the Dedekind algebra. There are N₀ isomorphism types of configurations. Each Dedekind algebra is associated with a cardinal-valued function on omega called its configuration signature. The configuration signature of a Dedekind algebra counts the number of configurations in the decomposition of the algebra in each isomorphism type.The configuration signature of a Dedekind algebra encodes the structure of that algebra in the sense that two Dedekind algebras are isomorphic iff their configuration signatures are identical. Configuration signatures are used to establish various results in the first-order model theory of Dedekind algebras. These include categoricity results for the first-order theories of Dedekind algebras and existence and uniqueness results for homogeneous, universal and saturated Dedekind algebras. Fundamental to these results is a condition on configuration signatures that is necessary and sufficient for elementary equivalence.     

A Test of Evolutionary and Sociocultural Explanations of Reactions to Sexual Harassment

Although the field of evolutionary psychology has been perceived to generate predictions that are untestable, one potentially falsifiable prediction of the evolutionary approach is that women should be less upset by unwanted sexual advances from high than from low status men. Three experiments tested this hypothesis within a workplace and an academic setting. Across the first two experiments, women and men were actually more upset by perceived sexual harassment from higher than lower status members of the other sex. Results of Study 3 suggested that women only showed this difference when there was a power relationship involved. These results conflict with the evolutionary prediction and support a sociocultural explanation of reactions to sexual harassment; that is, that they are influenced by power differentials.     

Cognitive Induction of Anger and Depression: The Role of Power, Attribution, and Gender

The causes of and contributors to negative emotions have been areas of interest in psychology for decades. Recent work has shown a variety of negative emotions, including anger and depression, to be related. The present study investigated the effects of power, attributional style, and gender on anger and depression using a series of narrative mood inductions presented to 120 undergraduates. Results indicated that participants in the external attribution and low power conditions demonstrated significantly higher levels of postinduction anger than those in other conditions. In addition, the influence of internal attributions on postinduction depression scores approached significance. The effectiveness of the study's mood induction methodology is discussed and suggestions are made for future research.     

Sanctioned social violence: A psychoanalytic view. Part II

This paper is the second in a series of two papers. In Part I, the first paper, the author reviewed the influence on the development of socially sanctioned violence of psychodynamics of group psychology and mass psychology, the regressive pull of ideologies, personality features of social and political leadership, and historical trauma and social crises. In this Part II, the author explores, from a psychoanalytic perspective, the dehumanization processes related to fundamentalist ideologies and terrorism.     

Fruitful Interchange or Polite Chitchat? The Dialogue Between Science and Theology

The demand that epistemic support be explicated as rational compulsion has consistently undermined the dialogue between theology and science. Rational compulsion entails too restrictive a form of epistemic support for most scientific theorizing, let alone interdisciplinary dialogue. This essay presents a less restrictive form of epistemic support, explicated not as rational compulsion but as explanatory power. Once this notion of epistemic support is developed, a genuinely productive interdisciplinary dialogue between theology and science becomes possible. This essay closes by sketching how the Big Bang model from cosmology and the Christian doctrine of Creation can be viewed as supporting each other.     

Preservation Theorems Without Continuum Hypothesis

Many results concerning the equivalence between a syntactic form of formulas and a model theoretic conditions are proven directly without using any form of a continuum hypothesis. In particular, it is demonstrated that any reduced product sentence is equivalent to a Horn sentence. Moreover, in any first order language without equality one now has that a reduced product sentence is equivalent to a Horn sentence and any sentence is equivalent to a Boolean combination of Horn sentences.     

梁启超的学习心理学思想研究

本研究以现代教育心理学体系为框架,采用资料整理法,对梁启超的学习心理学思想进行了分析归纳。从中可以看出,梁启超重视学习兴趣,并把无所为、不息、深入研究、找朋友作为保持兴趣的方法;认为做学问的人应具备明敏、密察、别裁、通方等能力和忠实、深切、敬慎、不倦的习惯;并总结出了立志、善观、持敬、明义理、养成读书兴趣等学习方法。     

One size doesn’t fit all: the influence of supervisors’ power tactics and subordinates’ need for cognitive closure on burnout and stress

The present research investigated the notion of fit between supervisors’ power tactics and subordinates’ need for cognitive closure (NFCC) on subordinates’ burnout and stress. Subordinates who tend to avoid ambiguity (high NFCC) were expected to experience relatively less burnout (Study 1) and stress (Study 2) if their supervisors utilize harsh (controlling and unequivocal) power tactics and more burnout and stress if their supervisors utilize soft (autonomy-supportive and equivocal) power tactics. In contrast, it was expected that subordinates who avoid firm and binding conclusions (low NFCC) would experience relatively less burnout and stress if their supervisors use soft power tactics and more burnout and stress if they use harsh power tactics. Two studies conducted in diverse organizational settings supported these hypotheses. Collectively, these results support the conclusion that soft (vs. harsh) power tactics are not always associated with better (vs. worse) organizational outcomes. Theoretical and practical implications for organizations are discussed.     

Comparing the body to superior others: Associations with daily exercise and body evaluation in men and women

ObjectivesThis study tested the link between daily body-related upward social comparisons (BUSCs) and exercise behavior, and examined how appearance evaluation and gender may impact this association.MethodIn a weeklong assessment, 87 participants (54% women) completed daily retrospective measures of social comparisons and exercise behavior, and a one-time trait measure of appearance evaluation.ResultsBased on findings from hierarchical linear modeling, men with more negative appearance evaluations reported higher exercise engagement on days when they made more (compared to less) BUSCs. Meanwhile, women with more negative appearance evaluations reported less exercise engagement on days when they engaged in more (compared to less) BUSCs.ConclusionsAmong individuals who experience negative appearance evaluations, upward body comparisons are associated with more exercising among men, and lower exercise among women. BUSCs have an important role in promoting adaptive exercise behaviors and managing negative body image.