128 research outputs found

    Baan Company’s Corporate Web Strategy – An Effort To Reach Main Street

    Get PDF
    During the 1990s Baan Company became a market leader in the enterprise applications industry. Its mission was to become an independent software manufacturer, serving a global market. To speed up growth, Baan developed its Baan Web strategy which implied a far-reaching renewal of its corporate strategy. Burgelman and Grove (1996) define the moment of choosing a new strategy as a strategic inflection point. Their framework named “Dynamic Forces in Firm Evolution†explains that ssuccessful development and implementation of a new corporate strategy is a process of aligning five dynamic forces. The focus of this study is on the vital role of the internal selection environment. This force regulates the allocation of the company’s scarce resources – cash, competences/capabilities and senior management attention – to strategic action. It is the crucial force in the continuing alignment processes that have to take place. Every company has a unique combination of distinctive competences (Burgelman) or dynamic capabilities (Teece). The study explains that to execute a new strategy successfully new competences/capabilities have to be developed based on existent ones. The development of Baan’s corporate strategy is analyzed and discussed with reference to the Technology Adoption Life Cycle (Moore). The study concludes with the management implications of a strategic inflection point.globalization;growth;dynamic capabilities;ERP;software;business web;corporate strategy;distinctive competences;strategic inflection point

    Baan Company’s Corporate Web Strategy – An Effort To Reach Main Street

    Get PDF
    During the 1990s Baan Company became a market leader in the enterprise applications industry. Its mission was to become an independent software manufacturer, serving a global market. To speed up growth, Baan developed its Baan Web strategy which implied a far-reaching renewal of its corporate strategy. Burgelman and Grove (1996) define the moment of choosing a new strategy as a strategic inflection point. Their framework named “Dynamic Forces in Firm Evolution” explains that ssuccessful development and implementation of a new corporate strategy is a process of aligning five dynamic forces. The focus of this study is on the vital role of the internal selection environment. This force regulates the allocation of the company’s scarce resources – cash, competences/capabilities and senior management attention – to strategic action. It is the crucial force in the continuing alignment processes that have to take place. Every company has a unique combination of distinctive competences (Burgelman) or dynamic capabilities (Teece). The study explains that to execute a new strategy successfully new competences/capabilities have to be developed based on existent ones. The development of Baan’s corporate strategy is analyzed and discussed with reference to the Technology Adoption Life Cycle (Moore). The study concludes with the management implications of a strategic inflection point

    In strijd met de roeping der vrouw : De Staatkundig Gereformeerde Partij en het vrouwenkiesrecht

    Get PDF
    Lieburg, F.A. van [Promotor]Schutte, G.J. [Copromotor

    The Complexity of Reasoning for Fragments of Default Logic

    Get PDF
    Default logic was introduced by Reiter in 1980. In 1992, Gottlob classified the complexity of the extension existence problem for propositional default logic as \SigmaPtwo-complete, and the complexity of the credulous and skeptical reasoning problem as SigmaP2-complete, resp. PiP2-complete. Additionally, he investigated restrictions on the default rules, i.e., semi-normal default rules. Selman made in 1992 a similar approach with disjunction-free and unary default rules. In this paper we systematically restrict the set of allowed propositional connectives. We give a complete complexity classification for all sets of Boolean functions in the meaning of Post's lattice for all three common decision problems for propositional default logic. We show that the complexity is a hexachotomy (SigmaP2-, DeltaP2-, NP-, P-, NL-complete, trivial) for the extension existence problem, while for the credulous and skeptical reasoning problem we obtain similar classifications without trivial cases.Comment: Corrected versio

    On the thermal sunset diagram for scalar field theories

    Full text link
    We study the so-called `` sunset diagram'', which is one of two-loop self-energy diagrams, for scalar field theories at finite temperature. For this purpose, we first find the complete expression of the bubble diagram, the one-loop subdiagram of the sunset diagram, for arbitrary momentum. We calculate the temperature independent part and dependent part of the sunset diagram separately. For the former, we obtain the discontinuous part first and the finite continuous part next using a twice-subtracted dispersion relation. For the latter, we express it as a one-dimensional integral in terms of the bubble diagram. We also study the structure of the discontinuous part of the sunset diagram. Physical processes, which are responsible for it, are identified. Processes due to the scattering with particles in the heat bath exist only at finite temperature and generate discontinuity for arbitrary momentum, which is a remarkable feature of the two-loop diagrams at finite temperature. As an application of our result, we study the effect of the diagram on the spectral function of the sigma meson at finite temperature in the linear sigma model, which was obtained at one-loop order previously. At high temperature where the decay σππ\sigma\to\pi\pi is forbidden, sigma acquires a finite width of the order of 10MeV10 {\rm MeV} while within the one-loop calculation its width vanishes. At low temperature, the spectrum does not deviate much from that at one-loop order. Possible consequences with including other two-loop diagrams are discussed.Comment: 30 page

    Quantum Theory in Accelerated Frames of Reference

    Get PDF
    The observational basis of quantum theory in accelerated systems is studied. The extension of Lorentz invariance to accelerated systems via the hypothesis of locality is discussed and the limitations of this hypothesis are pointed out. The nonlocal theory of accelerated observers is briefly described. Moreover, the main observational aspects of Dirac's equation in noninertial frames of reference are presented. The Galilean invariance of nonrelativistic quantum mechanics and the mass superselection rule are examined in the light of the invariance of physical laws under inhomogeneous Lorentz transformations.Comment: 25 pages, no figures, contribution to Springer Lecture Notes in Physics (Proc. SR 2005, Potsdam, Germany, February 13 - 18, 2005

    How does the electromagnetic field couple to gravity, in particular to metric, nonmetricity, torsion, and curvature?

    Get PDF
    The coupling of the electromagnetic field to gravity is an age-old problem. Presently, there is a resurgence of interest in it, mainly for two reasons: (i) Experimental investigations are under way with ever increasing precision, be it in the laboratory or by observing outer space. (ii) One desires to test out alternatives to Einstein's gravitational theory, in particular those of a gauge-theoretical nature, like Einstein-Cartan theory or metric-affine gravity. A clean discussion requires a reflection on the foundations of electrodynamics. If one bases electrodynamics on the conservation laws of electric charge and magnetic flux, one finds Maxwell's equations expressed in terms of the excitation H=(D,H) and the field strength F=(E,B) without any intervention of the metric or the linear connection of spacetime. In other words, there is still no coupling to gravity. Only the constitutive law H= functional(F) mediates such a coupling. We discuss the different ways of how metric, nonmetricity, torsion, and curvature can come into play here. Along the way, we touch on non-local laws (Mashhoon), non-linear ones (Born-Infeld, Heisenberg-Euler, Plebanski), linear ones, including the Abelian axion (Ni), and find a method for deriving the metric from linear electrodynamics (Toupin, Schoenberg). Finally, we discuss possible non-minimal coupling schemes.Comment: Latex2e, 26 pages. Contribution to "Testing Relativistic Gravity in Space: Gyroscopes, Clocks, Interferometers ...", Proceedings of the 220th Heraeus-Seminar, 22 - 27 August 1999 in Bad Honnef, C. Laemmerzahl et al. (eds.). Springer, Berlin (2000) to be published (Revised version uses Springer Latex macros; Sec. 6 substantially rewritten; appendices removed; the list of references updated

    Early nasogastric tube feeding in optimising treatment for hyperemesis gravidarum: The MOTHER randomised controlled trial (Maternal and Offspring outcomes after Treatment of HyperEmesis by Refeeding)

    Get PDF
    Background: Hyperemesis gravidarum (HG), or intractable vomiting during pregnancy, is the single most frequent cause of hospital admission in early pregnancy. HG has a major impact on maternal quality of life and has repeatedly been associated with poor pregnancy outcome such as low birth weight. Currently, women with HG are admitted to hospital for intravenous fluid replacement, without receiving specific nutritional attention. Nasogastric tube feeding is sometimes used as last resort treatment. At present no randomised trials on dietary or rehydration interventions have been performed. Small observational studies indicate that enteral tube feeding may have the ability to effectively treat dehydration and malnutrition and alleviate nausea and vomiting symptoms. We aim to evaluate the effectiveness of early enteral tube feeding in addition to standard care on nausea and vomiting symptoms and pregnancy outcomes in HG patients. Methods/Design: The MOTHER trial is a multicentre open label randomised controlled trial ( www.studies-obsgyn.nl/mother ). Women ≥ 18 years hospitalised for HG between 5 + 0 and 19 + 6 weeks gestation are eligible for participation. After informed consent participants are randomly allocated to standard care with intravenous rehydration or early enteral tube feeding in addition to standard care. All women keep a weekly diary to record symptoms and dietary intake until 20 weeks gestation. The primary outcome will be neonatal birth weight. Secondary outcomes will be the 24-h Pregnancy Unique Quantification of Emesis and nausea score (PUQE-24), maternal weight gain, dietary intake, duration of hospital stay, number of readmissions, quality of life and side-effects. Also gestational age at birth, placental weight, umbilical cord plasma lipid concentration and neonatal morbidity will be evaluated. Analysis will be according to the intention to treat principle. Discussion: With this trial we aim to clarify whether early enteral tube feeding is more effective in treating HG than intravenous rehydration alone and improves pregnancy outcome. Trial registration: Trial registration number: NTR4197. Date of registration: October 2nd 2013
    corecore