A Knowledge Base Guided Approach for Process Modeling in Complex Business Domain

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Liquid Chromatography-Tandem Mass Spectrometry Analysis of Perfluorooctane Sulfonate and Perfluorooctanoic Acid in Fish Fillet Samples

Perfluorooctane sulfonate (PFOS) and perfluorooctanoic (PFOA) acid are persistent contaminants which can be found in environmental and biological samples. A new and fast analytical method is described here for the analysis of these compounds in the edible part of fish samples. The method uses a simple liquid extraction by sonication, followed by a direct determination using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The linearity of the instrumental response was good, with average regression coefficients of 0.9971 and 0.9979 for PFOS and PFOA, respectively, and the coefficients of variation (CV) of the method ranged from 8% to 20%. Limits of detection (LOD) were 0.04 ng/g for both the analytes and recoveries were 90% for PFOS and 76% for PFOA. The method was applied to samples of homogenized fillets of wild and farmed fish from the Mediterranean Sea. Most of the samples showed little or no contamination by perfluorooctane sulfonate and perfluorooctanoic acid, and the highest concentrations detected among the fish species analyzed were, respectively, 5.96 ng/g and 1.89 ng/g. The developed analytical methodology can be used as a tool to monitor and to assess human exposure to perfluorinated compounds through sea food consumption

WEB APPLICATIONS: OUR IDEA FOR A DEVELOPMENT FRAMEWORK

ABSTRACT The increased complexity of Web applications makes us sure of the importance of making, before starting the development, a suitable organic design of such an application. Most conceptual design technologies are powerful analysis tools but are too far from the implementation and result almost useless to produce a complete work. We want to build a set of tools, able to fill the gap, letting the developer use the conceptual result of the W2000 analysis as a "ready to produce" methodology. In this Work In Progress, we refer about the first step of our research, in which, trying to verify the effectiveness of a methodology like W2000 [1] [2], based upon the well-known HDM model [3], we produce a pilot application using a standard technology. This experience will be the base for the framework we are thinking of, in order to guide the developer along all the development process, making the phases as automatic as possible. We describe the reasons and the goals of our work, during its working out, as well as the results we already got. We also express which will be the guidelines we are going to follow, moving on the second step

Síndrome de Mobius: Morbius syndrome

Introdução: A Síndrome de Moebius (SM) é uma desordem neurológica congênita rara cuja principal característica é a paralisia parcial ou completa do nervo facial, podendo ainda, ser acompanhada pela paralisia de outros nervos cranianos. Apresentação do caso: J.F.F.R., 15 meses e 21 dias, sexo masculino, brasileiro, em acompanhamento na Unidade Básica de Saúde Jairo Ferreira de Castro após contra-referência de pediatra particular por apresentar dificuldade em sugar, fechamento incompleto das pálpebras durante o sono, hipomimia da face, desvio de rima à esquerda, estrabismo convergente e hipoplasia da língua. Discussão: De diagnóstico essencialmente clínico, dentre as principais manifestações dessa doença destacam-se: sucção deficiente ou ausente devido ao fechamento incompleto dos lábios; falta de mímica facial; olhar fixo; fechamento incompleto das pálpebras durante o sono e ptose palpebral. A etiologia desta síndrome ainda não está bem estabelecida. Porém, existem algumas hipóteses descritas como lesões hipóxico-isquêmicas no início da gestação, trauma gestacional, exposição a drogas e componentes genéticos. Conclusão: Evidencia-se a importância do manejo interdisciplinar para a introdução precoce e contínua de reabilitação física para os distúrbios do movimento; fonoaudiologia para os déficits das funções motoras orais e intervenção psicomotora devido às dificuldades de coordenação visomotora

Measurement of the Tau Lepton Polarisation at LEP2

A first measurement of the average polarisation P_tau of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value P_tau = -0.164 +/- 0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV.A first measurement of the average polarisation Pτ of tau leptons produced in e + e − annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value Pτ=−0.164±0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV.A first measurement of the average polarisation P_tau of tau leptons produced in e+e- annihilation at energies significantly above the Z resonance is presented. The polarisation is determined from the kinematic spectra of tau hadronic decays. The measured value P_tau = -0.164 +/- 0.125 is consistent with the Standard Model prediction for the mean LEP energy of 197 GeV

Síndrome de Turcot, um relato de caso: Turcot syndrome, a case report

Introdução: A síndrome da polipose intestinal associada a tumor cerebral é também conhecida como síndrome de Turcot. As manifestações intestinais nesta síndrome são idênticas àquelas encontradas na PAF, e os tumores do SNC nela descritos são frequentemente astrocitomas, glioblastomas e meduloblastomas. Apresentação do caso: paciente do sexo feminino, branca, com 16 anos de idade, que deu entrada em outubro de 1990, na Enfermaria do Serviço de Colon e Reto da Disciplina de Cirurgia do Aparelho Digestivo do HC, FMUSP, com queixa de tumoração na região anal há dois anos, acompanhada de sangramento. Havia sido submetida a hemorroidectomia há um ano. O exame colonoscópico mostrou pólipo séssil de 2cm localizado a 10cm do ânus. Discussão: A síndrome de Turcot é uma doença hereditária rara, caracterizada pela associação de polipose adenomatosa familiar, com tumores do sistema nervoso central. Os pólipos são as neoplasias mais comuns do trato digestivo, podem ser únicos ou múltiplos, hereditários ou adquiridos. Geralmente, são assintomáticos e podem ser diagnosticados por meio da retossigmoidoscopia, enema ou colonoscopia, através de um pólipo e seu estudo histopatológico. Conclusão: A importância da identificação precoce, do acompanhamento e aconselhamento de famílias que apresentam essa síndrome é de fundamental importância para o prognóstico e tratamento das lesões, visto que as modificações e reversões das estruturas genéticas que promovem a doença em específico ainda não são passíveis de reversão

Joint Observation of the Galactic Center with MAGIC and CTA-LST-1

MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes (IACTs), designed to detect very-high-energy gamma rays, and is operating in stereoscopic mode since 2009 at the Observatorio del Roque de Los Muchachos in La Palma, Spain. In 2018, the prototype IACT of the Large-Sized Telescope (LST-1) for the Cherenkov Telescope Array, a next-generation ground-based gamma-ray observatory, was inaugurated at the same site, at a distance of approximately 100 meters from the MAGIC telescopes. Using joint observations between MAGIC and LST-1, we developed a dedicated analysis pipeline and established the threefold telescope system via software, achieving the highest sensitivity in the northern hemisphere. Based on this enhanced performance, MAGIC and LST-1 have been jointly and regularly observing the Galactic Center, a region of paramount importance and complexity for IACTs. In particular, the gamma-ray emission from the dynamical center of the Milky Way is under debate. Although previous measurements suggested that a supermassive black hole Sagittarius A* plays a primary role, its radiation mechanism remains unclear, mainly due to limited angular resolution and sensitivity. The enhanced sensitivity in our novel approach is thus expected to provide new insights into the question. We here present the current status of the data analysis for the Galactic Center joint MAGIC and LST-1 observations

T-REX Operating Unit 3

OU3 is one of the six Operating Units of the Progetto Premiale T-REX. It is focused on the development of adaptive optics instrumentation for the European Extremely Large Telescope. The main activities of OU3 are the MAORY adaptive optics module, the MICADO infrared camera, the characterisation and forecast of atmospheric parameters for the E-ELT site and general developments for future adaptive optics systems. <P /