26 research outputs found

    Ethical Mastery of Innovative Technologies

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    In this paper we present an alternative bio-epistemological-based approach to economic ethics issues, which suggests that economists need not only an understanding of the ecosystem in terms of irreversibility, but even more an understanding of the way the process in ecosystem make actual the principle of ameliorative equilibration. This means that among many technological innovations that extend the field of the possibilities only those that prove to be integrative and able to ameliorate the adaptation process will be chosen and preserved. In our view, only this type of prospective approach could be considered ethical as it realizes the principle of ameliorative equilibration and harmonizes the technological innovation process with the process of the ecosystem.social cooperation, biophysical constraints, negentropic rocess, ameliorative equilibration, vection, cross-disciplinary research.

    Newtonian Lorentz Metric Spaces

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    This paper studies Newtonian Sobolev-Lorentz spaces. We prove that these spaces are Banach. We also study the global p,q-capacity and the p,q-modulus of families of rectifiable curves. Under some additional assumptions (that is, the space carries a doubling measure and a weak Poincare inequality) and some restrictions on q, we show that the Lipschitz functions are dense in those spaces. Moreover, in the same setting we show that the p,q-capacity is Choquet provided that q is strictly greater than 1. We also provide a counterexample to the density result of Lipschitz functions in the Euclidean setting when q is infinite.Comment: v2: 32 pages. Formula on page 23 corrected; typos remove

    BMO Estimates for the H(Bn)H^{\infty}(\mathbb{B}_n) Corona Problem

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    We study the H(Bn)H^{\infty}(\mathbb{B}_{n}) Corona problem j=1Nfjgj=h\sum_{j=1}^{N}f_{j}g_{j}=h and show it is always possible to find solutions ff that belong to BMOA(Bn)BMOA(\mathbb{B}_{n}) for any n>1n>1, including infinitely many generators NN. This theorem improves upon both a 2000 result of Andersson and Carlsson and the classical 1977 result of Varopoulos. The former result obtains solutions for strictly pseudoconvex domains in the larger space HBMOAH^{\infty}\cdot BMOA with N=N=\infty , while the latter result obtains BMOA(Bn)BMOA(\mathbb{B}_{n}) solutions for just N=2 generators with h=1h=1. Our method of proof is to solve \overline{\partial}-problems and to exploit the connection between BMOBMO functions and Carleson measures for H2(Bn)H^{2}(\mathbb{B}_{n}). Key to this is the exact structure of the kernels that solve the \overline{\partial} equation for (0,q)(0,q) forms, as well as new estimates for iterates of these operators. A generalization to multiplier algebras of Besov-Sobolev spaces is also given.Comment: v1: 20 pg

    Where is the contre-coup? Atypical localization of occipital brain contusion

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    Most traumatic brain injuries with occipital impact cause frontal and temporal contre-coup lesions, while patients with coagulopathies are more susceptible to such lesions. We present the case of a chronic ethylic patient with thrombocytopenia, who was treated for ethanol withdrawal syndrome at a psychiatric service. The head CT scan revealed an occipital contusion with atypical localization and the absence of fronto-temporal contre-coup lesions. In conclusion, it is recommended a head CT scan to chronic alcoholic patients with psychiatric manifestations, especially in the context of systemic coagulopathies related to excessive alcohol consumption. In the case of chronic ethylic patients that frequently display systemic coagulation disorders, the head CT scan is necessary at the first psychiatric manifestations

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries
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