4,959 research outputs found

    Applications of an exact counting formula in the Bousso-Polchinski Landscape

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    The Bousso-Polchinski (BP) Landscape is a proposal for solving the Cosmological Constant Problem. The solution requires counting the states in a very thin shell in flux space. We find an exact formula for this counting problem which has two simple asymptotic regime one of them being the method of counting low Λ\Lambda states given originally by Bousso and Polchinski. We finally give some applications of the extended formula: a robust property of the Landscape which can be identified with an effective occupation number, an estimator for the minimum cosmological constant and a possible influence on the KKLT stabilization mechanism.Comment: 43 pages, 11 figures, 2 appendices. We have added a new section (3.4) on the influence of the fraction of non-vanishing fluxes in the KKLT mechanism. Other minor changes also mad

    From Zn to Mn: the study of novel manganese-binding groups in the search for new drugs against tuberculosis.

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    In most eubacteria, apicomplexans, and most plants, including the causal agents for diseases such as malaria, leprosy, and tuberculosis, the methylerythritol phosphate pathway is the route for the biosynthesis of the C(5) precursors to the essential isoprenoid class of compounds. Owing to their absence in humans, the enzymes of the methylerythritol phosphate pathway have become attractive targets for drug discovery. This work investigates a new class of inhibitors against the second enzyme of the pathway, 1-deoxy-D-xylulose 5-phosphate reductoisomerase. Inhibition of this enzyme may involve the chelation of a crucial active site Mn ion, and the metal-chelating moieties studied here have previously been shown to be successful in application to the zinc-dependent metalloproteinases. Quantum mechanics and docking calculations presented in this work suggest the transferability of these metal-chelating compounds to Mn-containing 1-deoxy-D-xylulose 5-phosphate reductoisomerase enzyme, as a promising starting point to the development of potent inhibitors

    Punishment and Work Law Compliance: Lessons from Chile

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    Workplace law activists and reformers find it increasingly more difficult to obtain redress for violation of workers’ rights. Some of them are calling for stricter enforcement and tougher penalties to bring employers into compliance. However, after seven and half months of participant observation at the Labor Directorate and the labor courts of Chile, institutions that use punishment as their main tools of enforcement, I am skeptical about the likelihood of success of mere punishment for effective workplace law enforcement and compliance. I am skeptical even though Chile is a country recognized as the Latin American “jaguar” for its successful economy and high respect for the rule of law. I observed that in Chile punishment bred a culture of resistance against workplace law enforcement. Some powerful employers mobilized courts and other government players against the labor inspectorate, the agency in charge of administratively enforcing all laws regarding the workplace, rendering the institution moot. My findings provide further evidence for New Governance, responsive regulation and traditional “Latin” inspection strategies being advocated by some law and policy scholars in the United States and beyond. While most of these scholars do not discard the importance of punishment, they call for more participatory and cooperative regulatory and enforcement processes, the use of persuasive rather than just punitive enforcement orientations, and conciliatory and remedial strategies by the enforcers to obtain better compliance results. In this manner, the Chilean case supports continued experimentation with non-punitive enforcement tools not just in Chile but also in the United States and beyond

    Solidarity or Colonialism? The Polemic of Labor Colonialism

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    Punishment and Work Law Compliance: Lessons from Chile

    Get PDF
    Workplace law activists and reformers find it increasingly more difficult to obtain redress for violation of workers’ rights. Some of them are calling for stricter enforcement and tougher penalties to bring employers into compliance. However, after seven and half months of participant observation at the Labor Directorate and the labor courts of Chile, institutions that use punishment as their main tools of enforcement, I am skeptical about the likelihood of success of mere punishment for effective workplace law enforcement and compliance. I am skeptical even though Chile is a country recognized as the Latin American “jaguar” for its successful economy and high respect for the rule of law. I observed that in Chile punishment bred a culture of resistance against workplace law enforcement. Some powerful employers mobilized courts and other government players against the labor inspectorate, the agency in charge of administratively enforcing all laws regarding the workplace, rendering the institution moot. My findings provide further evidence for New Governance, responsive regulation and traditional “Latin” inspection strategies being advocated by some law and policy scholars in the United States and beyond. While most of these scholars do not discard the importance of punishment, they call for more participatory and cooperative regulatory and enforcement processes, the use of persuasive rather than just punitive enforcement orientations, and conciliatory and remedial strategies by the enforcers to obtain better compliance results. In this manner, the Chilean case supports continued experimentation with non-punitive enforcement tools not just in Chile but also in the United States and beyond
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