Perceptual load in central and peripheral regions and its effects on driving performance: advertizing billboards

A broadened version of the perceptual load model was utilized to explore systematically the influence of four variables on driver's behavior: a. levels of load on the road; b. levels of load at the sides of the road; c. event's initial location (on the road vs. at the sides of the road); and d. the presence and size of advertizing billboards. 18 participants participated in two experimental sessions in a driving simulator. One of the sessions contained advertizing billboards and the other session did not. The results indicated that billboards can have a considerable effect on various aspects of driving like the time required responding to a potentially dangerous event or simply the number of accidents occurring during driving, but importantly the effect of billboards on driving was modulated by the levels of perceptual load.     

Managing human resource shortages in a unionized setting: Best practices in air traffic control

Human resource shortages require effective human resource management (HRM). Findings from research about ongoing labor shortages in air traffic control (ATC) are used to build a preliminary theory of appropriate HRM responses. Our international sample of major ATC agencies generally developed a set of best HRM practices to attract, motivate, and retain human assets. Key factors included (1) cultural and institutional norms, (2) technological change, (3) union responses, and (4) organizational form and structure (e.g., civil service versus commercial firms). While ATC’s rare human aptitudes, lengthy training to develop firm-specific human capital, and lifelong employment may limit the preliminary theory’s general applicability, crucial lessons emerge about human resource planning. This research was conducted with the support of the Social Sciences and Humanities Research Council, the Rice Fellowship, the Ziegler Fellowship, and the Center for International Business Studies at the University of Alberta. We are indebted to the individuals interviewed.     

A theory of instrumental and existential rational decisions: Smith,Weber, Mauss,Tönnies after Martin Buber

This paper proffers a dialogical theory of decision-making: decision-makers (DMs) are engaged in two modes of rational decisions, instrumental and existential. Instrumental rational decisions take place when the DM views the self externally to the objects, whether goods or animate beings. Existential rational decisions take place when the DM views the self in union with such objects. While the dialogical theory differs from Max Weber’s distinction between two kinds of rationality, it follows Martin Buber’s philosophical anthropology. The paper expounds the ramifications of the dialogical theory in understanding structures of exchange considering assessments of diverse thinkers.

     

Single-cell antisense RNA amplification and microarray analysis as a tool for studying neurological degeneration and restoration

Neurodegenerative diseases typically affect subpopulations of neurons. Characterizing these vulnerable cells and identifying the factors that make them susceptible to damage while neighboring cells remain resistant are essential to the understanding of molecular pathogenesis that underlies neurodegenerative diseases. Classically, molecular analysis of the central nervous system involves the identification and isolation of an anatomic region of interest; next, the relevant tissue is pulverized, and the resulting homogenate is analyzed. Although this method provides useful data, its effectiveness diminishes when used in areas of high cellular diversity or in instances in which one cell type is lost as a consequence of selective cell death or quiescence. A technique that affords the ability to assess molecular events in a very precise anatomical site would provide a powerful tool for this research discipline. In this review, we discuss the amplification of messenger RNA from single neural cells and the subsequent use of the RNA to probe DNA microarrays in an effort to create cell-specific molecular profiles. Specifically, recent work in single-cell expression profiling in Alzheimer's and Huntington's diseases is discussed. We also review some new work with neural stem cells and their application to restorative neurobiology. Finally, we discuss the use of cell-specific molecular profiles to better understand the basics of neuronal cell biology.     

An American Wordless Picturebook in Italian Classrooms: Inspiring Global Connections of People,Places, and Environments

What happens when five teacher candidates and their professor bring a wordless picturebook into Italian classrooms? This article presents a grounded discussion of our immersive experiences from the United States and the minilessons they taught stemming from a piece of children's literature through our study abroad program in Italy. The opening of Italian classroom doors provided reflective observations of the critical and creative thinking processes of more than 200 Italian students (ages 7–16). We (one professor and five early childhood and special education teacher candidates) taught minilessons in five Italian schools during a monthlong study abroad program offered by our university (further described in Author 1, 2017). Although this project was conducted in Italy, we have since used this minilesson successfully in our own classes, and we invite you to adapt our use to fit your teaching.     

Ambiguity in the Small and in the Large

This paper considers local and global multiple‐prior representations of ambiguity for preferences that are (i) monotonic, (ii) Bernoullian, that is, admit an affine utility representation when restricted to constant acts, and (iii) locally Lipschitz continuous. We do not require either certainty independence or uncertainty aversion. We show that the set of priors identified by Ghirardato, Maccheroni, and Marinacci's (2004) “unambiguous preference” relation can be characterized as a union of Clarke differentials. We then introduce a behavioral notion of “locally better deviation” at an act and show that it characterizes the Clarke differential of the preference representation at that act. These results suggest that the priors identified by these preference statements are directly related to (local) optimizing behavior.     

Male pressure in the decision to remain childfree

To examine the negotiations and resolutions of disagreement over childlessness (the childfree lifestyle), questionnaires were sent to 100 married couples drawn randomly from membership lists of the National Organization for Non-Parents (NON). Responses of 40 couples were analyzed, in a synthesized theoretical framework drawn from Thibaut and Kelley (1959) and sex role socialization theory. The pattern that emerged was: if it was the husband's decision to remain childfree and not the wife's at first, she was likely to come into agreement with him; if it was the wife's decision to remain childfree, only very rarely would the husband consent. The more likely result, if she remained adamant, was divorce. Because marital power was so much greater for the husbands, the childfree life-style as an alterntive marital form may not differ greatly from traditional marital patterns. Author's Note: An earlier draft of this paper was presented at the annual meetings of the American Sociological Association, Chicago, September 1977. I am indebted to Dr. Roger Libby for his helpful comments, and to the anonymous reviewers for their suggestions.