2,649 research outputs found

    Infecciones orofaciales de origen odontogénico

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    La naturaleza polimicrobiana de las infecciones odontógenas así como la heterogeneidad de los cuadros clínicos asociados son consecuencia de la diversidad de la microbiota bucal y de la complejidad anatómica y funcional de la cavidad oral. Así mismo, estos procesos pueden dar lugar a múltiples complicaciones que pueden limitarse a afecciones locales o derivar hasta compromisos sistémicos. En el tratamiento farmacológico de estas infecciones es crucial la elección del antibiótico y la pauta posológica más eficaces. La farmacodinamia proporciona los parámetros que hacen posible valorar como varía la actividad de los antibióticos en función del tiempo. Como norma general, en el manejo inicial de las infecciones orofaciales en el adulto, incluidas las infecciones odontógenas, se utilizará amoxicilina/ac. Clavulánico en dosis de 875 mg de amoxicilina y 125 mg de ac. clavulánico pautado cada 8 horas. El cumplimiento terapéutico es clave para evitar la aparición de resistencias, por lo que se ha de maximizar la aceptación por parte de los pacientes. En este sentido se ha demostrado que la nueva presentación de 2000/125 mg de Augmentine Plus pautado cada 12 horas tanto en profilaxis como tratamiento disminuye significativamente la tasa de complicaciones infecciosas derivada de la extracción del tercer molar.The polymicrobial nature of the odontogenic infections as well as the variety of associated conditions are a consequence of the diversity of the buccal microbiota and the anatomical and functional complexity of the oral cavity. In addition to this, all these processes can give way to multiple complications which range from the local to the systemic level. The appropriate choice of antibiotic and posology is crucial in the successful management of these infections. Pharmacodynamics provides those parameters that make it possible to assess how antibiotics activity varies in time. As a general rule, the first step in the initial management of orofacial infections in adults, included odontogenic infections, will be the administration of 875 mg of amoxicillin and 125 mg of clavulanic every 8 hours. Therapeutic compliance is paramount to avoid resistance, therefore patient's acceptance must be sought. In this sense, it has been proved that Augmentine Plus (2000/125) every twelve hours both as profylaxis and as treatment significantly decreases the rate of infective complications associated to extraction of the third molar

    A Practical Environment to Apply Model-Driven Web Engineering

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    The application of a model-driven paradigm in the development of Web Systems has yielded very good research results. Several research groups are defining metamodels, transformations, and tools which offer a suitable environment, known as model-driven Web engineering (MDWE). However, there are very few practical experiences in real Web system developments using real development teams. This chapter presents a practical environment of MDWE based on the use of NDT (navigational development techniques) and Java Web systems, and it provides a practical evaluation of its application within a real project: specialized Diraya.Ministerio de Educación y Ciencia TIN2007-67843-C06-03Ministerio de Educación y Ciencia TIN2007-30391-

    Towards a Programming Language in Cellular Computing

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    AbstractSeveral solutions to hard numerical problems using P systems have been presented recently, and strong similarities in their designs have been noticed. In this paper we present a new solution, to the Partition problem, via a family of deterministic P systems with active membranes using 2-division. Then, we intend to show that the idea of a cellular programming language is possible (at least for some relevant family of NP-complete problems), indicating some “subroutines” that can be used in a variety of situations and therefore could be useful for designing solutions for new problems in the future

    Bounds on the anomalous HZγHZ\gamma vertex arising from the process e+eτ+τγe^+e^-\to \tau^+ \tau^- \gamma

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    We obtain limits on the anomalous coupling HZγHZ\gamma through data published by the L3 Collaboration on the process e+eτ+τγe^+e^-\to \tau^+\tau^- \gamma. Our analysis leads to bounds on this coupling of order 10210^{-2}, for an intermediate mass Higgs boson 115<MH<145115 < M_H < 145 GeVGeV, two orders of magnitude above the Standard Model prediction.Comment: 10 pages, 3 figure

    Y-stent-assisted coil embolization of anterior circulation aneurysms using two solitaire AB devices: a single enter experience

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    Wide-neck intracranial aneurysms remain a challenge to endovascular treatment. We describe our experience in repairing wide-neck aneurysms of the anterior circulation located at arterial branch points using coil embolization assisted by Y-stenting using two Solitaire® stents. Six wide-neck intracranial aneurysms located on the middle cerebral artery bifurcation 3, pericallosal artery 1, and anterior communicating artery 2 were repaired by Y-stent-assisted coil embolization using two Solitaire® stents. Four cases were incidental findings of aneurysm and two cases were previously treated ruptured aneurysms that had undergone recanalization. All the cases were successfully treated without complications. Follow-up by digital subtraction angiography and magnetic resonance angiography at six months showed the stents to be patent with no recanalization of the aneurysm sacs. Repairing wide-neck aneurysms of the anterior circulation by Y-stent-assisted coil embolization using two Solitaire® stents is a simple and safe method of treating complex aneurysms. While the results are promising, larger series with longer term follow-ups are needed to corroborate that this treatment method is superior to other technique

    Limits on the Electromagnetic and Weak Dipole Moments of the Tau-Lepton in E_6 Superstring Models

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    We obtain limits on the electromagnetic and weak dipole moments of the tau-lepton in the framework of a Left-Right symmetric model (LRSM) and a class of E6E_6 inspired models with an additional neutral vector boson ZθZ_\theta. Using as an input the data obtained by the L3 and OPAL Collaborations for the reaction e+eτ+τγe^+e^-\to \tau^+\tau^-\gamma, we get a stringent limit on the LRSM mixing angle ϕ\phi, 1.66×103<ϕ<1.22×103-1.66\times 10^{-3}< \phi<1.22\times 10^{-3}, which in turn induces bounds on the tau weak dipole moments which are consistent with the bounds obtained recently by the DELPHI and ALEPH Collaborations from the reaction e+eτ+τe^+e^-\to \tau^+\tau^-. We also get similar bounds for the weak dipole moments of the tau lepton in the framework of E6E_6 superstring models.Comment: 18 pages, 5 figure

    On the uniformization of L-valued frames

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    This note discusses the appropriate way of uniformizing the notion of an L-valued frame introduced by A. Pultr and S. Rodabaugh in [Lattice-valued frames, functor categories, and classes of sober spaces, Chapter 6 of Topological and Algebraic Structures in Fuzzy Sets: A Handbook of Recent Developments in the Mathematics of Fuzzy Sets, Kluwer, 2003]. It covers the case of a completely distributive lattice L (which is, in a certain sense, the most general one) and studies the corresponding category of uniform L-valued frames

    Evaluation and optimization of the Sysmex UF1000i system for the screening of urinary tract infection in primary health care elderly patients

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    Objective Urinary tract infections (UTIs) are a common problem in the elderly population. Urine culture is still considered the "gold standard" to diagnose infection in this population. However, urine cultures are laborious and costly, and most samples will yield no growth. Methods An evaluation was made of the Sysmex UF-1000i flow cytometer as a screening tool for UTI in an elderly population older than 65 years who lived in the community, using 346 urine samples submitted for culture. Results The Receiver Operating Characteristic (ROC) analysis showed a significant difference (P < 0.01) between 0.98 bacteria area under the curve value and 0.82 of white blood cells (WBC). The combination of both counts for screening did not show any improvement in specificity or sensitivity. According to our data, the use of a single cut-off point of 200 bacteria/μL is suggested, in which the sensitivity and specificity were 99.11% and 91.59%, respectively, with a NPV of 99.49%. Moreover, this cut-off value could avoid 60.24% of the samples to be cultured, with a minimal false negative results rate of 0.87%. Conclusions The stratification of age groups stratification helps in selecting a more adjusted Sysmex UF1000i cut-off limit, leading to an improvement in the screening parameters that would imply a better management of these infections, as well as a high reduction in the workload and cost savings

    Electronic structure of crystalline binary and ternary Cd-Te-O compounds

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    The electronic structure of crystalline CdTe, CdO, α\alpha-TeO2_2, CdTeO3_3 and Cd3_3TeO6_6 is studied by means of first principles calculations. The band structure, total and partial density of states, and charge densities are presented. For α\alpha-TeO2_2 and CdTeO3_3, Density Functional Theory within the Local Density Approximation (LDA) correctly describes the insulating character of these compounds. In the first four compounds, LDA underestimates the optical bandgap by roughly 1 eV. Based on this trend, we predict an optical bandgap of 1.7 eV for Cd3_3TeO6_6. This material shows an isolated conduction band with a low effective mass, thus explaining its semiconducting character observed recently. In all these oxides, the top valence bands are formed mainly from the O 2p electrons. On the other hand, the binding energy of the Cd 4d band, relative to the valence band maximum, in the ternary compounds is smaller than in CdTe and CdO.Comment: 13 pages, 15 figures, 2 tables. Accepted in Phys Rev
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