185 research outputs found

    Change and Innovation Management in IS/IT: A Simulation Approach

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    Why do so many IS/IT-related projects fail to deliver the level of tangible and sustainable performance improvements organizations target and expect? Why are the new mindsets and ways of operating enabled by IS/IT innovations so difficult to be integrated and adopted in organizations? Why do factors such as resistance to change, insufficient executive sponsoring, unrealistic expectations, or ineffective leadership still nullify the efforts put into the implementation of conceptually and technically sophisticated information and communication (including enterprise resource planning, supply chain management, collaboration, knowledge management and similar IS/IT-based) systems? These questions, which are relevant to both IS/IT research and practice, are at the core of a simulation-based experience aimed at deepening and extending our understanding of issues related to managing organisational change and transformation in the context of IS/IT implementation projects, providing at the same time a new approach to model, validate and diffuse efficiently (through a gamelike experience) knowledge in this relevant domain

    Open Source Platforms Under Co-opetition: A Comparative Analysis of SourceForge and \u27CodeX\u27 (Xerox) as Two \u27Co-opetitive Learning and Knowledge Exchange Networks\u27 (CoLKENs)

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    This paper investigates \u27Co-opetitive Learning and Knowledge Exchange Networks\u27 (CoLKENs) deploying open source platforms. The balancing act between cooperation and competition which CoLKENs must execute when engaging in collaboration with eventual competitors is heightened within an open source environment. This requires the designing and implementing of specific management processes to enable economic value maximization for participating individuals and firms. The authors first describe the concept of CoLKENs, their components and their generic structure. Relevant dimensions to examine when investigating CoLKENs are then identified. Specific characteristics of open source CoLKENs are reviewed and two cases, SourceForge and CodeX (Xerox) are analyzed. Findings indicate varying motivations for participation, diverse methods of leadership and governance, several specifically tailored tools for managing collaboration and primarily hidden coordination and control mechanisms for dealing with competition. Finally, the authors identify the need for future research, especially in the area of evaluating and managing the element of competition

    Enhancing Knowledge Management Systems with Cognitive Agents

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    After identifying the key challenges of knowledge management and proposing a vision that address them, this paper explores how cognitive agents can be used to design management systems that implement this vision and that in particular support the knowledge management processes in both their social, organizational and individual dimension

    ICIS 2008 Panel Report: Design Science in Information Systems: Hegemony, Bandwagon, or New Wave?

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    In the past few years, design science has become a topic of increasing importance, especially in the North American academic IS community. Some observers see a new hegemony forming. Others dispute that but suggest that design science is merely the latest bandwagon rolling through the IS domain. A panel at the 2008 International Conference on Information Systems debated views of design science prevalent in the IS community. This paper reports on the panel discussion and attempts to position design science from various perspectives, including North American and European views, the latter with a long tradition of design-based IS scholarship

    ICIS 2008 Panel Report: Design Science in Information Systems: Hegemony, Bandwagon, or New Wave?

    Get PDF
    In the past few years, design science has become a topic of increasing importance, especially in the North American academic IS community. Some observers see a new hegemony forming. Others dispute that but suggest that design science is merely the latest bandwagon rolling through the IS domain. A panel at the 2008 International Conference on Information Systems debated views of design science prevalent in the IS community. This paper reports on the panel discussion and attempts to position design science from various perspectives, including North American and European views, the latter with a long tradition of design-based IS scholarship

    Number of comorbidities and their impact on perioperative outcome and costs - a single centre cohort study

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    AIMS OF THE STUDY Multimorbidity is a growing global health problem, resulting in an increased perioperative risk for surgical patients. Data on both the prevalence of multimorbidity and its impact on perioperative outcome are limited. The American Society of Anesthesiologists (ASA) classification uses only the single most severe systemic disease to define the ASA class and ignores multimorbidity. This study aimed to assess the number and type of all anaesthesia-relevant comorbidities and to analyse their impact on outcome and hospital costs. METHODS This cohort study is nested in the ClassIntra® validation study and includes only patients enrolled at the University Hospital of Basel. Approximately 30 patients per surgical discipline undergoing any type of in-hospital surgery were followed up until hospital discharge to record all intra- and postoperative adverse events. In addition, the type and severity of all perioperatively relevant comorbidities were extracted from the electronic medical record according to a predefined list. The primary endpoint was the number of all anaesthesia-relevant comorbidities by ASA class. Using structural equation models, the direct and indirect effects of comorbidities on costs were estimated after adjustment for the ASA class and further relevant confounders and mediators. RESULTS Of 320 enrolled patients, 27 were ASA I (8%), 150 ASA II (47%), 116 ASA III (36%) and 27 ASA IV (8%). The median number of comorbidities per patient was 5 (range 0-18), this number significantly increasing with higher ASA class: 1 comorbidity (95% CI 0.0-2.0) in ASA I, 4 comorbidities (3.8-4.2) in ASA II, 9 (8.1-9.9) in ASA III and 12 (10-14) in ASA IV patients. Independent of ASA class, each additional comorbidity increased hospital costs by EUR 1,198 (95% CI 288-2108) with almost identical proportions of direct and indirect effects. The number of anaesthesia-relevant comorbidities also increased postoperative complications and postoperative length of hospital stay. CONCLUSIONS Multimorbidity in perioperative patients is highly prevalent and has a relevant impact on hospital costs, independent of the ASA class. Incorporating multimorbidity into the ASA classification might be warranted to improve its predictive ability and support adequate reimbursement

    Number of comorbidities and their impact on perioperative outcome and costs - a single centre cohort study

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    AIMS OF THE STUDY: Multimorbidity is a growing global health problem, resulting in an increased perioperative risk for surgical patients. Data on both the prevalence of multimorbidity and its impact on perioperative outcome are limited. The American Society of Anesthesiologists (ASA) classification uses only the single most severe systemic disease to define the ASA class and ignores multimorbidity. This study aimed to assess the number and type of all anaesthesia-relevant comorbidities and to analyse their impact on outcome and hospital costs. METHODS: This cohort study is nested in the ClassIntra(R) validation study and includes only patients enrolled at the University Hospital of Basel. Approximately 30 patients per surgical discipline undergoing any type of in-hospital surgery were followed up until hospital discharge to record all intra- and postoperative adverse events. In addition, the type and severity of all perioperatively relevant comorbidities were extracted from the electronic medical record according to a predefined list. The primary endpoint was the number of all anaesthesia-relevant comorbidities by ASA class. Using structural equation models, the direct and indirect effects of comorbidities on costs were estimated after adjustment for the ASA class and further relevant confounders and mediators. RESULTS: Of 320 enrolled patients, 27 were ASA I (8%), 150 ASA II (47%), 116 ASA III (36%) and 27 ASA IV (8%). The median number of comorbidities per patient was 5 (range 0-18), this number significantly increasing with higher ASA class: 1 comorbidity (95% CI 0.0-2.0) in ASA I, 4 comorbidities (3.8-4.2) in ASA II, 9 (8.1-9.9) in ASA III and 12 (10-14) in ASA IV patients. Independent of ASA class, each additional comorbidity increased hospital costs by EUR 1,198 (95% CI 288-2108) with almost identical proportions of direct and indirect effects. The number of anaesthesia-relevant comorbidities also increased postoperative complications and postoperative length of hospital stay. CONCLUSIONS: Multimorbidity in perioperative patients is highly prevalent and has a relevant impact on hospital costs, independent of the ASA class. Incorporating multimorbidity into the ASA classification might be warranted to improve its predictive ability and support adequate reimbursement

    Section Extension from Hyperbolic Geometry of Punctured Disk and Holomorphic Family of Flat Bundles

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    The construction of sections of bundles with prescribed jet values plays a fundamental role in problems of algebraic and complex geometry. When the jet values are prescribed on a positive dimensional subvariety, it is handled by theorems of Ohsawa-Takegoshi type which give extension of line bundle valued square-integrable top-degree holomorphic forms from the fiber at the origin of a family of complex manifolds over the open unit 1-disk when the curvature of the metric of line bundle is semipositive. We prove here an extension result when the curvature of the line bundle is only semipositive on each fiber with negativity on the total space assumed bounded from below and the connection of the metric locally bounded, if a square-integrable extension is known to be possible over a double point at the origin. It is a Hensel-lemma-type result analogous to Artin's application of the generalized implicit function theorem to the theory of obstruction in deformation theory. The motivation is the need in the abundance conjecture to construct pluricanonical sections from flatly twisted pluricanonical sections. We also give here a new approach to the original theorem of Ohsawa-Takegoshi by using the hyperbolic geometry of the punctured open unit 1-disk to reduce the original theorem of Ohsawa-Takegoshi to a simple application of the standard method of constructing holomorphic functions by solving the d-bar equation with cut-off functions and additional blowup weight functions

    Small bound for birational automorphism groups of algebraic varieties (with an Appendix by Yujiro Kawamata)

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    We give an effective upper bound of |Bir(X)| for the birational automorphism group of an irregular n-fold (with n = 3) of general type in terms of the volume V = V(X) under an ''albanese smoothness and simplicity'' condition. To be precise, |Bir(X)| < d_3 V^{10}. An optimum linear bound |Bir(X)|-1 < (1/3)(42)^3 V is obtained for those 3-folds with non-maximal albanese dimension. For all n > 2, a bound |Bir(X)| < d_n V^{10} is obtained when alb_X is generically finite, alb(X) is smooth and Alb(X) is simple.Comment: Mathematische Annalen, to appea
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