800 research outputs found

    AN INVESTIGATION OF IT USAGE OVER TIME

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    Information Systems Success Factors In China

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    Predicted to be the world\u27s largest economy in the 21st century, China has captured attentions from around the globe because of its size, growth potential, and impact on the global market. China\u27s population, consisting of a quarter of the world’s population, makes up unarguably the most important target market of many of the U.S., European, and Asian multinational corporations. Not only is it a huge market, it is also a fast growing market. China\u27s economy has been growing at an exception rate, more than 10% annually since 1992, whereas, the U.S., 2.3% (CIA, 1997). In addition, China\u27s impact on other countries is unprecedented. For example, the trading deficit between the US and China has been consistently increasing for the past ten years; it has grown from $ 0.3 billion in 1985 to 42 billion in 1996 (CIA, 1997). This demonstrates the growing dependency of the U.S. on China

    Information Technology Acceptance: How Much Do We Know?

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    Gender Differences in the Effect of Privacy on Location-Based Services Use on Mobile Phones

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    More and more businesses implement location-based services (LBS) to attract consumers to purchase their products or services. However, using LBS may pose privacy concerns for consumers. An understanding of what drives consumers to use LBS on their mobile phones and how privacy concerns may prevent them from using would help marketers promote LBS services more effectively. We augmented the technology acceptance model with privacy concerns and subjective norms. Specifically, we investigated the influence of privacy concerns on consumers ’ behavioral intentions to use LBS and to spread positive word-of-mouth about LBS. In addition, we also investigate gender differences in the effect of privacy concerns on the outcome measures. The research model was tested using data collected from an online survey of 563 LBS users. The results indicate significant gender differences and that privacy concerns negatively affected intention to spread positive word-of-mouth among females only. Practical implications and theoretical contributions are discussed

    The Distinct Roles of Prior IT Use and Habit Strength in Predicting Continued Sporadic Use of IT

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    This article studies prediction of continued IT use in conditions where individuals use the technology sporadically. Our study augments the unified theory of acceptance and use of technology (UTAUT) model [Venkatesh et al., 2003] with measures of prior IT use frequency and habit strength. We find these two factors provide distinct predictions which explain most of the effects that occur within the model under sporadic use conditions

    Forced back into shape: Mechanics of epithelial wound repair

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    Wound repair, the closing of a hole, is inherently a physical process that requires the change of shape of materials, in this case, cells and tissues. Not only is efficient and accurate wound repair critical for restoring barrier function and reducing infection, but it is also critical for restoring the complex three-dimensional architecture of an organ. This re-sculpting of tissues requires the complex coordination of cell behaviours in multiple dimensions, in space and time, to ensure that the repaired structure can continue functioning optimally. Recent evidence highlights the importance of cell and tissue mechanics in 2D and 3D to achieve such seamless wound repair

    First principles study of the graphene/Ru(0001) interface

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    Annealing the Ru metal that typically contains residual carbon impurities offers a facile way to grow graphene on Ru(0001) at the macroscopic scale. Two superstructures of the graphene/Ru(0001) interface with periodicities of 3.0-nm and 2.7-nm, respectively, have been previously observed by scanning tunneling microscopy. Using first-principles density functional theory, we optimized the observed superstructures and found interfacial C-Ru bonding of C atoms atop Ru atoms for both superstructures, which causes the graphene sheet to buckle and form periodic humps of ~1.7 A in height within the graphene sheet. The flat region of the graphene sheet, which is 2.2-2.3 A above the top Ru layer and has more C atoms occupying the atop sites, interacts more strongly with the substrate than does the hump region. We found that interfacial adhesion is much stronger for the 3.0-nm superstructure than for the 2.7-nm superstructure, suggesting that the former is the thermodynamically more stable phase. We explained the 3.0-nm superstructure's stability in terms of the interplay between C-Ru bonding and lattice matching.Comment: 16 pages; 5 figure

    Predicting Continuing Acceptance of IT in Conditions of Sporadic Use

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    This paper tests a new predictive model of IT acceptance in conditions where use is characteristically sporadic. The model utilizes cognitive constructs from the well-known technology acceptance model (TAM) [8] in combination with habit and a new construct measuring perceived regularity of use. Initial tests indicate that the model explains several important effects of regularity and predicts substantially more of the variance in continuing acceptance than alternative models

    Management Information Systems Research: What\u27s There in a Methodology?

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    Management information systems (MIS) is both a young and unique field , constantly experiencing rapid change and turmoil. Consequently, MIS research faces dual changes of rigor and relevance. Many research methodologies exist that provide various combinations of rigor and relevance. The MIS researcher selects a methodology based on several factors including rigor, relevance, subject area, and personal preferences. In this article, we examine thirteen different methodologies as used by seven leading MIS journals during a recent five-year period. The results of this extensive analysis yielded some interesting results. Survey methodology consistently ranks at the top; while frameworks and conceptual models, lab experiments, and case studies also found significant use among the MIS community. Several trends were observed, one of them being a greater use of the case study method and other qualitative technologies over the years. Clear patterns also emerged based on the journal itself and the subject areas. At a macro level, this information should help authors in the choice of appropriate methodologies to use in specific subject areas and in targeting manuscripts to appropriate journals. It would also be helpful to journal editors in assessing the type of research and methods being used across journals and subjects, and whether they need to make any changes in the emphases of their own journals
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