525 research outputs found
The Impact of the Introductory IS Course on Students\u27 Perceptions of IS Professionals
Increasing the number of students pursuing Information Systems (IS) majors and careers is vital to the advancement of our knowledge-based economy. Literature suggests that one of the main reasons for students’ lack of interest in IS has been the negative stereotypical image of IS professionals. Research has also emphasized that the introductory IS course plays a significant role in busting prevailing myths about the IS profession and in attracting larger pools of students to the discipline. Therefore, the purpose of this study was to understand students’ perceptions of IS professionals before and after they were exposed to the IS field and careers through the introductory IS course. The findings suggest that students’ image of IS professionals might not be as negative as previously thought. Furthermore, the study confirms the importance of the introductory IS course on how students view the IS field. The paper concludes with a discussion of the findings, implications, limitations, and future research directions
Electrochemically Obtained Insulating and Conducting Polymers and Composites of Acrylonitrile
Electrochemically obtained polyacrylonitrile and a commercial polyacrylonitrile were heat treated to improve their conductivities. The parameters chosen for heat treatment conditions were the temperature, treatment medium (vacuum or air) and, doping agent. The conductivity of all heat treated polymers was measured. The characterization of the heat treated polymers was made by IR analysis. The composite films of polyacrylonitrile with polypyyrole and polythiophene were electrochemically prepared at different compositions. The change in the conductivity of composites was analyzed as a function of the percent composition of the insulating component. IR, DSC, TGA and SEM analyses were used to characterize the polymer composites
Immobilization of invertase in conducting polymer matrices
Cataloged from PDF version of article.This paper reports a novel approach in the electrode immobilization of an enzyme, invertase, by
electrochemical polymerization of pyrrole in the presence of enzyme. The polypyrrolelinvertase and
polyamide/polypyrrole/invertase electrodes were constructed by the entrapment of enzyme in
conducting matrices during electrochemical polymerization of pyrrole. This study involves the
preparation and characterization of polypyrrole/invertase and polyamidelpolypyrrolelinvertase
electrodes under conditions compatible with the enzyme. It demonstrates the effects of pH and
temperature on the properties of enzyme electrode. Enzyme leakage tests were carried out during
reuse number studies. The preparation of enzyme electrodes was done in two different electrolyte/
solvent systems. The enzyme serves as a sucrose electrode and retains its activity for several
months. (c) 1997 Elsevier Science Limited. All rights reserve
Online Advice Taking: Examining the Effects of Self-Efficacy, Computerized Sources, and Perceived Credibility
The Internet offers limitless advice on a multitude of products and services. The quality of the advice varies and is inherently a matter of human judgment. To help users determine the quality of advice and whether to use the advice, design features of web sites include information about the type and credibility of the advice source. This research examines how characteristics of the online user (i.e., self-efficacy) and characteristics of the advice source (i.e., type and credibility) affect advice taking in an online investing context. A laboratory experiment provides evidence that users with higher levels of self-efficacy are less likely to take advice than those with lower levels of self-efficacy. Results also suggest users given highly credible advice are more likely to take the advice compared to users who receive advice with dubious credibility. The implications are discussed
Invited Paper: Teaching Information Systems in the Age of Digital Disruption
The Information Systems discipline has long suffered an identity crisis. It has also been prone to program sustainability issues as a technology focus has waxed and waned over the last 50 years. This paper suggests a new approach to teaching Information Systems, utilizing the notion of “fundamental and powerful concepts.” Using digital disruption as a fundamental and powerful concept, the authors argue for the core IS course and the courses that make up the major to be developed and centered around the transformation of business models, products, and services caused by emerging digital technologies. The paper includes an outline for the core IS course and the other courses in the major and concludes with a suggestion that the fundamental and powerful concept of digital disruption be used as an approach to teaching Information Systems
Primary extranodal Non-Hodgkin`s lymphoma presenting as painful gingval swelling
Primary extra-nodal non-Hodgkin’s lymphomas (NHL) constitute 25–40% of NHL but less than 1% arises in oral cavity. Here in 53-year-old man with stage IE gingival diffuse large B cell lymphoma who was treated successfully with chemotherapy and radiotherapy was presented
The statistical analysis of some volumetric measurements in the japanese quails" head with different feather color: a computed tomography study
Structural and functional properties of the distal muscles of front and hind legs of malakan horses (equus caballus)
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