We evaluated if the theory of planned behavior explains students activity in a web-based learning environment. Two of the considerations of the theory, attitude toward the behavior (behavioral beliefs and outcome evaluations) and perceived behavioral control (computer selfefficacy), were evaluated. The scope was also widened to students approaches to learning and anxiety in computer using situa...

Presenilins have been implicated in the development of Alzheimer's disease and in facilitating LIN-12/Notch activity. Here, we use genetic methods to explore the relationship between C. elegans LIN-12 and SEL-12 presenilin. Reducing sel-12 activity can suppress the effects of elevated lin-12 activity when LIN-12 is activated by missense mutations but not when LIN-12 is activated by removal of t...

Information system researchers have recently devoted considerable attention to the concept of computer self-efficacy in order to understand computer user behavior and system use. This article reports on the development and examination of a contingency model of computer and Internet self-efficacy. User attitude and computer anxiety were assumed to influence the development of computer and Intern...

Selenium is one of the most essential trace elements in fishes. Therefore, determining the optimal level of selenium in the fish diet is one of the main concerns of researchers. This study investigated the effects of Sel-Plex (Selenium yeast) supplement on the hematological parameters and immunological parameters, and growth performance in Siberian Sturgeon, Acipenser baerii. The Siberian Sturg...

Suppressor genetics in C. elegans has identified key components of the LIN-12/Notch signaling pathway. Here, we describe a genetic and molecular characterization of the suppressor gene sel-7. We show that reducing or eliminating sel-7 activity suppresses the effects of constitutive lin-12 activity, enhances the effects of partially reduced lin-12 activity, and causes a synthetic Lin-12(0) pheno...

Atherosclerosis is an inflammatory disease characterized by accumulation of leukocytes in the arterial intima. Members of the selectin family of adhesion molecules are important mediators of leukocyte extravasation. However, it is unclear whether L-selectin (L-sel) is involved in the pathogenesis of atherosclerosis. In the present study, mice deficient in L-selectin (L-sel(-/-)) animals were cr...

Purpose: the present study evaluated the relationship between library anxiety and attitude toward computer based on as integrated model of ATC and BELCAT of public libraries’ user. Methodology: the study was conducted using the analytic survey. A sample of 370 participants was randomly selected out of 10757 users of public libraries in Dezful city, Khouzestan, Iran. To collect data for library ...