117 research outputs found

    Transformational Focus in Strategic IT Vision: An Industry-Level Conceptual Model

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    It has recently been argued that the IT literature has neglected to sufficiently focus on the importance of the influence that industry factors have on a firm’s IT strategy and IT management practices, in short – industry matters. (Chiasson & Davidson, 2005) Strategic IT Vision (SIV) has been studied at the firm level for many years. The categories Automate, Informate & Transform have been used to categorize the Strategic IT Vision of firms for more than 20 years. At the same time, some have suggested that SIV can be observed at the industry level in that, at a given time, the firms within an industry exhibit a certain amount of homogeneity of IT strategy and vision. What industry factors might lead to the adoption of a particular SIV by its firms? This paper develops a conceptual framework of industry factors that can be theorized to lead to a greater transformative nature of the SIV of a particular industry

    The Social Structure of the Information Systems Collaboration Network: Centers of Influence and Antecedents of Tie Formation

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    In this study, we examine the historical information systems research collaboration network. We build the network using coauthorship information in the Senior Scholars’ basket of eight journals from the publication of MISQ’s first issue in April, 1977, to November, 2015. The different journals vary widely in their network configurations. We examine the influence of gender homophily, geographic homophily, and field tenure heterophily on coauthorship in the network. From using exponential random graph modeling (ERGM) on a randomly selected subset of the network, we present preliminary evidence that suggests that ties in the IS collaboration network exhibit homophily according to gender and geography. Conversely, coauthorship seems to exhibit heterophily along the temporal dimension: short-tenured researchers in the field prefer to collaborate with long-tenured researchers. ERGM enables one to make statistical inferences concerning the influence of node attributes and structural variables on network formation, which is hard to do with logistical regression because network relationships violate the independence of observations assumption. We also reveal the current center of the IS collaboration network. Based on this center, we propose a metric to measure a researcher’s connectedness in the network

    A Quantitative and Qualitative Study of Facebook Privacy using the Antecedent-Privacy Concern-Outcome Macro Model

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    Information privacy is a complex and important phenomenon to understand. Because of this, several recent review articles have integrated findings across various studies and contexts. In this study we investigate information privacy in the online social networking context using the Antecedent-Privacy Concern-Outcome (APCO) Macro Model as the theoretical lens. We use both quantitative and qualitative data collected in a survey of Facebook users. Online social networking provides a rich window into privacy concerns and the resulting behavioral reactions. By analyzing both types of data, we are able to show additional support and insights for our hypotheses tests. These results provide future research opportunities that include modifying the APCO model and refining its constructs to be more context and risk-specific

    Job Satisfaction in Agile Development Teams: Agile Development as Work Redesign

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    Agile software-development advocates claim that an important value proposition of agile methods is that they make people more motivated and satisfied with their jobs. While several studies present anecdotal evidence that agile methods increase motivation and satisfaction, research has not theoretically explained or empirically examined how agile development practices relate to team members’ feelings about their work. Drawing on the management and software-development literature, we articulate a model of job design that connects agile development practices to perceptions of job characteristics and, thereby, improve agile team members’ job satisfaction. Using data collected from 252 software-development professionals, we tested the model and found a positive relationship between agile project-management and software-development practices and employees’ perceptions of job characteristics. Further, we found direct effects between agile development-practice use and job satisfaction. Finally, we found interaction effects between the use of agile project-management and software-development approaches and the perception of job autonomy. With this study, we contribute to the literature by theoretically explaining and directly evaluating agile development practices’ impact on individuals’ perceptions about their job characteristics and on their job satisfaction

    SENSORS: A Novel Lateral Field Excited Acoustic Wave Sensor for Chemical and Biological Agents

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    Sensors for the sensitive and selective detection of chemical agents and a biological agent are being developed. The sensor structure consists of a piezoelectric platform that is coated with a film that selectively sorbs a chemical or biological agent of interest. The sensitivity of the sensor is embodied in the sensor platform, which consists of a quartz crystal that is excited by a lateral electric field. The exciting electrodes are placed opposite to the sensing surface, and the sensing film is attached directly to the sensor platform. This arrangement is in contrast to the standard quartz microbalance (QCM), where the sensing surface is normally coated with a gold film, and it offers increased sensitivity along with selectivity. The high sensitivity exhibited by this novel lateral-field-excited (LFE) QCM is attributed to the fact that the sensor can measure both electrical and mechanical property changes in the sensing film caused by the sorbed chemical or biological agent. The selectivity of the LFE-QCM sensor is obtained by performing molecular filtering directly in the sensing film. In this specific project the LFE-QCM sensor is being designed to detect two specific chemicals and one biological agent. The target chemicals are dimethyl phosponate (DMMP), which simulates VX and G nerve agents, and an organophosphate pesticide that is chemically similar to many other chemical-warfare agents. The biological agent is E. coli O157:H7, which could appear in food or water supplies. In order to realize the desired chemical and biological sensors, the research team is exploring several issues relating to the LFE-QCM platform and the sensing film. These issues include the optimum electrode geometry in the LFE-QCM platform, the development of novel polymer and silica films for the detection of organophosphates in water, and the coupling of E. coli antibodies to the sensing surface. Homeland security as well as environmental and industrial health concerns dictate that improved chemical and biological sensors must be developed and deployed. After various sorbate-selective films have been attached to the LFE-QCM surface, they will be exposed to the chemical simulants and the biological agent in order to determine the sensing properties. It is anticipated that the proposed work on these organo-phosphorus chemicals and E. coli can be extended to development of selective sensors for other significant chemical and biological agents. In addition, by coupling with existing GK-12 and REU programs, this project will contribute to the education of a number of students and teachers who will participate in the research program

    Workgroup Embeddedness and Professionalism among IT Professionals: Impacts on Work-Life Conflict and Organizational Citizenship

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    Over the course of their careers, IT professionals become embedded in their workplace. In the organizational behavior literature, research has found that job embeddedness provides direct, positive benefits for employers, including lower turnover intentions, lower levels of withdrawal behaviors, lower actual turnover, and more. In this paper, we present a more nuanced view, namely that embeddedness among IT professionals may influence the development of professionalized mindsets, which, in turn, has a mix of positive and negative consequences. To understand these relationships, we introduce a concept called workgroup embeddedness (WGE). WGE captures how IT professionals become embedded in their organizational workgroup or unit. We report a multiphase study that (1) developed a measure of WGE, (2) established the validity of WGE, and (3) evaluated the implications of WGE among 150 IT professionals using data collected at two points in time. We found that WGE drives an increase in professionalism, which, in turn, increases work-life conflict. Also, we found that both WGE and professionalism positively influence organizational citizenship behaviors. These findings indicate that WGE may play a role in socializing and driving more professionalized mindsets among IT professionals, such as professional identification, which leads to positive outcomes like citizenship behaviors but may come at the expense of negative consequences in professionals’ nonwork lives. Post hoc findings highlight that belief in public service and identification with the IT profession influence work-life conflict and organizational citizenship. We conclude with implications for research and practice

    The Carnegie Supernova Project: First Near-Infrared Hubble Diagram to z~0.7

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    The Carnegie Supernova Project (CSP) is designed to measure the luminosity distance for Type Ia supernovae (SNe Ia) as a function of redshift, and to set observational constraints on the dark energy contribution to the total energy content of the Universe. The CSP differs from other projects to date in its goal of providing an I-band {rest-frame} Hubble diagram. Here we present the first results from near-infrared (NIR) observations obtained using the Magellan Baade telescope for SNe Ia with 0.1 < z < 0.7. We combine these results with those from the low-redshift CSP at z <0.1 (Folatelli et al. 2009). We present light curves and an I-band Hubble diagram for this first sample of 35 SNe Ia and we compare these data to 21 new SNe Ia at low redshift. These data support the conclusion that the expansion of the Universe is accelerating. When combined with independent results from baryon acoustic oscillations (Eisenstein et al. 2005), these data yield Omega_m = 0.27 +/- 0.0 (statistical), and Omega_DE = 0.76 +/- 0.13 (statistical) +/- 0.09 (systematic), for the matter and dark energy densities, respectively. If we parameterize the data in terms of an equation of state, w, assume a flat geometry, and combine with baryon acoustic oscillations, we find that w = -1.05 +/- 0.13 (statistical) +/- 0.09 (systematic). The largest source of systematic uncertainty on w arises from uncertainties in the photometric calibration, signaling the importance of securing more accurate photometric calibrations for future supernova cosmology programs. Finally, we conclude that either the dust affecting the luminosities of SNe Ia has a different extinction law (R_V = 1.8) than that in the Milky Way (where R_V = 3.1), or that there is an additional intrinsic color term with luminosity for SNe Ia independent of the decline rate.Comment: 44 pages, 23 figures, 9 tables; Accepted for publication in the Astrophysical Journa

    Back to the future : the Arab uprisings and state (re)formation in the Arab world

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    This article contributes to debates that aim to go beyond the “democratization” and “post-democratization” paradigms to understand change and continuity in Arab politics. In tune with calls to focus on the actualities of political dynamics, the article shows that the literatures on State Formation and Contentious Politics provide useful theoretical tools to understand change/continuity in Arab politics. It does so by examining the impact of the latest Arab uprisings on state formation trajectories in Iraq and Syria. The uprisings have aggravated a process of regime erosion – which originated in post-colonial state-building attempts – by mobilizing sectarian and ethnic identities and exposing the counties to geo-political rivalries and intervention, giving rise to trans-border movements, such as ISIS. The resulting state fragmentation has obstructed democratic transition in Syria and constrained its consolidation in Iraq.PostprintPeer reviewe

    Undergraduate Research Participation in Electrical Engineering

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    During the 1990-2003 summers the Electrical Engineering Department at the University of Maine will offer ten undergraduate students the opportunity to actively participate in research. Students will receive financial awards plus a subsistence allowance. The available research projects include (1) Environmental Sensors; (2) Intelligent Systems for Automation; (3) Communications Devices and Applications; (4) Motion Control; (5) Microprocessor/Instrumentation Applications; (6) Growth and Characterization of Thin Film Materials; and (7) Power Systems Applications. At least five students will come from institutions where research opportunities are limited and at least four students will be women, minorities or students with disabilities. Students chosen for the program will have displayed a high degree of initiative and independence of thought in both laboratories and course work. Student research projects are chosen to match the student\u27s interest and educational level. In addition to extensive University facilities, students will also have access to facilities at various nearby industries such as Sensor Research and Development Corporation, BIODE Corporation, Bangor Hydro Electric and Central Maine Power Companies, James River, Champion, and Scott Paper Companies, Digital Equipment Corporation, Fairchild and National Semiconductor. At the program culmination a written report and an oral seminar are required from the student. Three academic credits are awarded to the student upon satisfactory completion of the program

    Evolution of the Scale Factor with a Variable Cosmological Term

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    Evolution of the scale factor a(t) in Friedmann models (those with zero pressure and a constant cosmological term Lambda) is well understood, and elegantly summarized in the review of Felten and Isaacman [Rev. Mod. Phys. 58, 689 (1986)]. Developments in particle physics and inflationary theory, however, increasingly indicate that Lambda ought to be treated as a dynamical quantity. We revisit the evolution of the scale factor with a variable Lambda-term, and also generalize the treatment to include nonzero pressure. New solutions are obtained and evaluated using a variety of observational criteria. Existing arguments for the inevitability of a big bang (ie., an initial state with a=0) are substantially weakened, and can be evaded in some cases with Lambda_0 (the present value of Lambda) well below current experimental limits.Comment: 29 pages, 12 figures (not included), LaTeX, uses Phys Rev D style files (revtex.cls, revtex.sty, aps.sty, aps10.sty, prabib.sty). To appear in Phys Rev
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