In a recent issue of CHEST (December 2007), Burns and Truog1 argued that the history of futility can be divided into the following three sequential periods: the definitional approach; the procedural approach; and the conflict resolution approach. We agree that attempts to define futility have failed, and we agree that the procedural approach of the Texas Advance Directives Act fails to accord n...

This study examined the relationship between social support and objective task performance in a field setting. a sample of 197 participants, mean age 23.13 years (Sd 3.56) completed measures of stressors, social support, and self-efficacy prior to performance. moderated hierarchical regression analysis revealed significant (p < .05) main effects for stressors (R2 = .12) and social support (∆R 2...

The tendency for banded birds to "repeat", i.e. re-enter a decoy trap, is greatest for Grackles, followed by Cowbirds, Red-wings, and Starlings in that order. This finding is based on 6477 repeats contributed by 29,479 birds. The species differences are statistically significant (p<.01). Analysis of seasonal variables tends to minimize their contaminating effect. From an explanatory standpoint,...

Online forum is a popular approach for sharing of ideas and problem resolution. It is a very useful tool for education where students and lecturers can communicate with each other without time and space constraints. This paper presents an exploratory study to investigate students’ involvement with online forum, which in turn may affect their intention to seek answers and share ideas. The Social...

Statistical mediation and moderation analysis are widespread throughout the behavioral sciences. Increasingly, these methods are being integrated in the form of the analysis of ―mediated moderation‖ or ―moderated mediation,‖ or what Hayes and Preacher (in press) call conditional process modeling. In this paper, I offer a primer on some of the important concepts and methods in mediation analysis...

Given that age is considered a key demographic variable for IS research, recent work has accumulated overwhelming evidence that older workers perform worse on computerized tasks than their younger counterparts. This finding is alarming given the facts that the workforce is rapidly growing older and, at the same time, organizational technologies are proliferating. However, the reasons for the fi...

The current research drew upon the resource perspective (Grzywacz & Marks, 2000; ten Brummelhuis & Bakker, 2012) and firstly focused on the reciprocal mediation relationship between schedule control, work interference with family (WIF) and emotional exhaustion. First, the present study proposed that WIF mediates the negative relationship between schedule control and emotional exhaustion, and em...

In chemistry, lack of academic preparation and math ability have been offered as explanations as to why women seem to enroll, perform, and graduate at lower levels than men. In this paper, we explore the alternative possibility that the gender gap in chemistry instead originates from differential gender effects of academic factors on students’ motivation. Using a sample of approximately 670 stu...