996 resultados para P-25 TiO2


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Ten new species of Apenesia Westwood, 1874, from Brazil, Acre, are described and illustrated. They belong, respectively, to the following species-groups: nitida group, Apenesia lobata sp. nov., A. serrulata sp. nov. and A. subangulata sp. nov.; laevigata group, A. ocullata sp. nov. and A. rostrum sp. nov.; columbana group, A. apicilata sp. nov.; mexicana group, A. triapicalis sp. nov.; brasiliensis group, A. megaventris sp. nov., A. ventosa sp. nov. and A. triangula sp. nov. New geographical records and some morphological data on A. funebris Evans, 1963, A. nitida (Kieffer, 1910) and A. truncaticeps (Kieffer, 1910) are added.

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Artigo original Ergoespirometria

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Este trabalho apresenta e discute diferentes aspectos da realidade da Pós-Graduação brasileira, relevantes para a discussão de sua produção intelectual. Também são descritas e discutidas as estratégias adotadas para a avaliação dessa produção.

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Shear transparent cellulose free-standing thin films can develop iridescence similar to that found in petals of the tulip Queen of the Night. The iridescence of the film arises from the modulation of the surface into bands periodically spread perpendicular to the shear direction. Small amounts of nanocrystalline cellulose (NCC) rods in the precursor liquid-crystalline solutions do not disturb the optical properties of the solutions but enhance the mechanical characteristics of the films and affects their iridescence. Smaller bands periodicity, not affected by the NCC rods, slightly deviated from the shear direction is also observed. NCCs are crucial to tune and understand the film's surface features formation. Our findings could lead to new materials for application in soft reflective screens and devices.

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A hérnia inguinal é uma das patologias mais frequentes que se coloca ao Cirurgião Geral. Muitas vezes considerada de menor importância, esta acarreta um impacto importante quer pela interferência na qualidade de vida diária do doente quer em termos sociais pelo absentismo laboral. A evolução do conhecimento anatómico e da técnica cirúrgica permitiu ao cirurgião dispor de diversas técnicas, colocando hoje em dia o problema na seleção da melhor técnica cirúrgica para cada doente. Neste artigo, os autores descrevem a anatomia da região inguinal do ponto de vista da abordagem cirúrgica, os fatores predisponentes e desencadeantes do aparecimento da hérnia inguinal, o diagnóstico desta patologia e a evolução da cirurgia; abordando alguns temas de controvérsia atual no tratamento desta patologia.

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[Excerto] Le positivisme durkheimien n’a jamais fait l’ombre d’un doute. Dans Les règles de la méthode sociologique, Durkheim s’est fixé la tâche de définir a priori le statut de la sociologie en se réclamant explicitement du rationalisme, entendu comme modèle théorique et pratique : « Notre principal objectif, en effet, est d’étendre à la conduite humaine le rationalisme scientifique, en faisant voir que, considérée dans le passé, elle est réductible à des rapports de cause à effet qu’une opération non moins rationnelle peut transformer ensuite en règles d’action pour l’avenir 1. » La science sociologique a donc pour vocation de faire accéder ce qui est encore irrationnel à l’ordre du rationnel en le rendant intelligible et d’apporter ainsi sa contribution à un projet de transformation de la société selon les canons de la raison.

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Publicado en la página web de la Consejería de Salud: www.juntadeandalucia.es/salud (Consejería de Salud / Ciudadanía / Nuestra Salud / Vida sana / Alimentación equilibrada y actividad física / Plan para la Promoción de la Actividad Física y la Alimentación Equilibrada)

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PURPOSE: Studies of diffuse large B-cell lymphoma (DLBCL) are typically evaluated by using a time-to-event approach with relapse, re-treatment, and death commonly used as the events. We evaluated the timing and type of events in newly diagnosed DLBCL and compared patient outcome with reference population data. PATIENTS AND METHODS: Patients with newly diagnosed DLBCL treated with immunochemotherapy were prospectively enrolled onto the University of Iowa/Mayo Clinic Specialized Program of Research Excellence Molecular Epidemiology Resource (MER) and the North Central Cancer Treatment Group NCCTG-N0489 clinical trial from 2002 to 2009. Patient outcomes were evaluated at diagnosis and in the subsets of patients achieving event-free status at 12 months (EFS12) and 24 months (EFS24) from diagnosis. Overall survival was compared with age- and sex-matched population data. Results were replicated in an external validation cohort from the Groupe d'Etude des Lymphomes de l'Adulte (GELA) Lymphome Non Hodgkinien 2003 (LNH2003) program and a registry based in Lyon, France. RESULTS: In all, 767 patients with newly diagnosed DLBCL who had a median age of 63 years were enrolled onto the MER and NCCTG studies. At a median follow-up of 60 months (range, 8 to 116 months), 299 patients had an event and 210 patients had died. Patients achieving EFS24 had an overall survival equivalent to that of the age- and sex-matched general population (standardized mortality ratio [SMR], 1.18; P = .25). This result was confirmed in 820 patients from the GELA study and registry in Lyon (SMR, 1.09; P = .71). Simulation studies showed that EFS24 has comparable power to continuous EFS when evaluating clinical trials in DLBCL. CONCLUSION: Patients with DLBCL who achieve EFS24 have a subsequent overall survival equivalent to that of the age- and sex-matched general population. EFS24 will be useful in patient counseling and should be considered as an end point for future studies of newly diagnosed DLBCL.