357 research outputs found

    Comparative analysis of inspection and diagnosis tools for ancient buildings

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    The survey and inspection of the state of conservation of buildings is understood as an active process of selecting information to support decision making in the rehabilitation of the built heritage. The development of new technologies applied to the integrated management of the built heritage resulted in digital tools able to support the technicians in on-site procedures. The purpose of this study was to analyse existing methods for the survey and inspection of the state of conservation of ancient buildings. It uses a qualitative methodology, focused on bibliographical survey and comparative analysis. Only methods with identical characteristics were considered: evaluation based on visual inspection of buildings with heritage value. This research shows that structuring information in computer systems is a solution to overcome the main problems pointed out in previous studies related to survey and inspection: expensive, time-consuming, inconsequential procedures and dispersed information. However, this is only valid if computer-based methods are adapted to the different geographic and chronological contexts. Future research may contribute to the development of a method that brings together this added value with a simple but objective way to diagnose the condition of ancient buildings with heritage value.The authors would like to acknowledge the support granted by the Portuguese Foundation for Science and Technology (FCT), in the scope of the Doctoral Program Eco-Construction and Rehabilitation (EcoCoRe), to the Ph.D. scholarship with the reference PD/BD/127853/2016 that was fundamental for the development of this study.info:eu-repo/semantics/publishedVersio

    Tomato quality in different postharvest phases

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    Manual classification using wooden boxes (K) are still very common in Brazil. The main goal of this work was to characterize tomatoes of the cultivar Débora type, for maturity index, diameter and external defects at harvest time and at Retail Market, CEASA, Campinas, São Paulo State, Brazil. This research also evaluated parameters related to mechanical injury (%), weight loss (%) and quality during the main phases (1) harvest; (2) before field sorting and classification; (3) after field sorting and packaging in K boxes; (4) at CEASA. 120 fruits were taken at each stage. Defects and physical damage were evaluated using a score scale. Fruits sampled in the field showed external damages, due to bruising from bamboo stakes, insects attack and physiological and nutritional disorders. Fruits were harvested mainly at green maturity stage (48%). But, when sampled at CEASA this amount dropped to 26,3%, having mixed diameters fruits, 55,4% at 50-60mm and 43,9% over 60 mm. The results showed an increase in mechanical injury (%), weight loss (%) and loss of quality during the stages. Fruits taken directly from field showed better quality (45%) after storage for 21 days than fruits sampled at terminal market, CEASA (5,8%).A classificação manual para tomate de mesa e a utilização da caixa K para transporte ainda predomina em diversas regiões no Brasil. O presente trabalho buscou caracterizar frutos da cultivar Débora provenientes de plantios comerciais quanto ao estádio de maturidade, diâmetro e defeitos físicos e danos na etapa de colheita e no recebimento do produto na CEASA, de Campinas. Objetivou-se também avaliar a incidência de danos físicos, a perda de peso e alterações na qualidade em frutos retirados diretamente no campo de produção e nas etapas da colheita (1), recebimento em um barracão para classificação manual (2), após classificação manual e embalagem (3) e na comercialização do produto na CEASA (4). Para está amostragem retirou-se 120 frutos em cada etapa. Defeitos e danos físicos presentes foram analisados utilizando-se uma escala de notas. Frutos amostrados em campo já demonstravam danos físicos, provenientes principalmente da abrasão com as estacas de bambu e fios de amarrio, ataque de insetos e distúrbios fisiológicos e nutricionais. Os frutos foram colhidos predominantemente no estádio de maturação verde-maduro (48%). Na amostragem retirada na CEASA dois dias após a colheita está porcentagem era de 26,3%, com misturas de diâmetros, sendo que 55,4% dos frutos encontravam-se entre 50-60 mm e 43,9% acima de 60 mm. Observou-se um incremento nos danos físicos e na perda de peso e conseqüente perda na qualidade com o aumento do manuseio e transporte do produto. Frutos retirados diretamente da planta mostraram-se mais aptos a consumo após armazenagem por 21 dias (45%) do que frutos amostrados na CEASA (5,8%).231235Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP

    Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at √ s = 8 TeV with the ATLAS detector

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    Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb−1 of √ s = 8 TeV data collected in 2012 with the ATLAS detector at the LHC. Events are required to have at least one jet with pT > 120 GeV and no leptons. Nine signal regions are considered with increasing missing transverse momentum requirements between Emiss T > 150 GeV and Emiss T > 700 GeV. Good agreement is observed between the number of events in data and Standard Model expectations. The results are translated into exclusion limits on models with either large extra spatial dimensions, pair production of weakly interacting dark matter candidates, or production of very light gravitinos in a gauge-mediated supersymmetric model. In addition, limits on the production of an invisibly decaying Higgs-like boson leading to similar topologies in the final state are presente

    Intra-abdominal pressure in patients with abdominal trauma

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    Objetivos: Pacientes com trauma abdominal tratados cirurgicamente são muito suscetíveis ao desenvolvimento de hipertensão intra-abdominal e síndrome do compartimento abdominal, cujo diagnóstico é baseado na medição da pressão intraabdominal associada a parâmetros clínicos. Este estudo teve por objetivos avaliar prospectivamente o comportamento da pressão intra-abdominal de pacientes com trauma abdominal cirurgicamente tratados e identificar se há relação entre tal comportamento e parâmetros clínicos destes pacientes. Método: A técnica de Kron foi utilizada para medir a pressão intra-abdominal. A casuística foi composta por 17 homens e três mulheres com média de idade de 36,9 anos (D.P. 12,943). O mecanismo de trauma mais freqüente foi contusão abdominal 12 (60%) contra oito (40%) pacientes com ferimentos penetrantes. Os dados foram coletados em 6 e 18 horas de pós-operatório. Resultados: As médias de pressão intra-abdominal foram 10,4 cmH2O (D.P. 3,939) em 6 horas e 10,263 cmH2O (D.P. 3,445) em 18 horas de pós operatório. A análise dos resultados mostrou correlação estatisticamente significante entre o volume de colóides infundidos e a pressão intra-abdominal em 6 e 18 horas pós-operatórias (p = 0,0380 e p = 0,0033 respectivamente). É provável que tal correlação se deva ao edema visceral causado pelo extravasamento capilar de soluções, aumentando a pressão intra-abdominal. Conclusões: Os achados deste estudo ratificam a idéia de relação entre grandes volumes de infusão venosa, sobretudo colóides, e o aumento da pressão intra-abdominal e destacam a importância da avaliação da pressão intra-abdominal em pacientes com trauma abdominal submetidos a grandes reposições volêmicas, sobretudo as soluções coloidais. _________________________________________________________________________________________ ABSTRACT: Bacjground: Patients with significant abdominal traumatism submitted to surgical treatment are susceptible to develop intra-abdominal hypertension and abdominal compartment syndrome. Those diagnosis are based on intra-abdominal pressure measurement associated with clinical parameters. The aims of this study were: to study prospectively the behavior of intra-abdominal pressure in patients with abdominal trauma submitted to surgical treatment; to identify if there is association between that behavior and clinical parameters. Methods: There were 17 males and three females with an average age of 36.9 years (S.D. 12.9). The data was collected in two times, six and 18 hours in the immediate postoperative period. The averages of intra-abdominal pressures found were 10.4 cmH2O (S.D. 3.9) in the first six hours and 10.3 cmH2O (S.D. 3.5) in 18 hours of postoperative period. Results: There was significant statistical correlation between the volume of infused colloids and intra-abdominal pressure at six and 18 hours of postoperative period (p = 0.0380 and p = 0.0033, respectively). These correlations are probably explained by visceral edema caused by the capillary leak of solutions, increasing intra-abdominal pressure. Conclusions: Our findings confirm the relationship between large volumes of fluid infusion, mainly colloid solutions, and the increase of intra-abdominal pressure and detach the importance of intraabdominal pressure monitorization in patients with abdominal trauma submitted to massive replacement of liquids, mainly when this replacement was done with colloids solutions

    Search for High-Mass Resonances Decaying to τν in pp Collisions at √s=13 TeV with the ATLAS Detector

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    A search for high-mass resonances decaying to τν using proton-proton collisions at √s=13 TeV produced by the Large Hadron Collider is presented. Only τ-lepton decays with hadrons in the final state are considered. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 36.1 fb−1. No statistically significant excess above the standard model expectation is observed; model-independent upper limits are set on the visible τν production cross section. Heavy W′ bosons with masses less than 3.7 TeV in the sequential standard model and masses less than 2.2–3.8 TeV depending on the coupling in the nonuniversal G(221) model are excluded at the 95% credibility level

    Search for the direct production of charginos and neutralinos in final states with tau leptons in √s=13 TeV collisions with the ATLAS detector

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    A search for the direct production of charginos and neutralinos in final states with at least two hadronically decaying tau leptons is presented. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of 36.1 fb−1, recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13TeV.Nosignificant deviation from the expected Standard Model background is observed. Limits are derived in scenarios of ˜χ+1 ˜χ−1 pair production and of ˜χ±1 ˜χ02 and ˜χ+1 ˜χ−1 production in simplified models where the neutralinos and charginos decay solely via intermediate left-handed staus and tau sneutrinos, and the mass of the ˜ τL state is set to be halfway between the masses of the ˜χ±1 and the ˜χ01. Chargino masses up to 630 GeV are excluded at 95% confidence level in the scenario of direct production of ˜χ+1 ˜χ−1 for a massless ˜χ01. Common ˜χ±1 and ˜χ02 masses up to 760 GeV are excluded in the case of production of ˜χ±1 ˜χ02 and ˜χ+1 ˜χ−1 assuming a massless ˜χ01. Exclusion limits for additional benchmark scenarios with large and small mass-splitting between the ˜χ±1 and the ˜χ01 are also studied by varying the ˜ τL mass between the masses of the ˜χ±1 and the ˜χ01

    Combined measurement of differential and total cross sections in the H → γγ and the H → ZZ* → 4ℓ decay channels at s=13 TeV with the ATLAS detector

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    A combined measurement of differential and inclusive total cross sections of Higgs boson production is performed using 36.1 fb−1 of 13 TeV proton–proton collision data produced by the LHC and recorded by the ATLAS detector in 2015 and 2016. Cross sections are obtained from measured H→γγ and H→ZZ*(→4ℓ event yields, which are combined taking into account detector efficiencies, resolution, acceptances and branching fractions. The total Higgs boson production cross section is measured to be 57.0−5.9 +6.0 (stat.) −3.3 +4.0 (syst.) pb, in agreement with the Standard Model prediction. Differential cross-section measurements are presented for the Higgs boson transverse momentum distribution, Higgs boson rapidity, number of jets produced together with the Higgs boson, and the transverse momentum of the leading jet. The results from the two decay channels are found to be compatible, and their combination agrees with the Standard Model predictions

    Measurement of differential cross sections and W + /W − cross-section ratios for W boson production in association with jets at √s =8 TeV with the ATLAS detector

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    This paper presents a measurement of the W boson production cross section and the W + /W − cross-section ratio, both in association with jets, in proton--proton collisions at s √ =8 TeV with the ATLAS experiment at the Large Hadron Collider. The measurement is performed in final states containing one electron and missing transverse momentum using data corresponding to an integrated luminosity of 20.2 fb −1 . Differential cross sections for events with one or two jets are presented for a range of observables, including jet transverse momenta and rapidities, the scalar sum of transverse momenta of the visible particles and the missing transverse momentum in the event, and the transverse momentum of the W boson. For a subset of the observables, the differential cross sections of positively and negatively charged W bosons are measured separately. In the cross-section ratio of W + /W − the dominant systematic uncertainties cancel out, improving the measurement precision by up to a factor of nine. The observables and ratios selected for this paper provide valuable input for the up quark, down quark, and gluon parton distribution functions of the proto

    Measurement of the cross section for inclusive isolated-photon production in pp collisions at √s=13TeV using the ATLAS detector

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    Inclusive isolated-photon production in pp collisions at a centre-of-mass energy of 13TeVis studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 3.2fb−1. The cross section is measured as a function of the photon transverse energy above 125GeVin different regions of photon pseudorapidity. Next-to-leading-order perturbative QCD and Monte Carlo event-generator predictions are compared to the cross-section measurements and provide an adequate description of the data
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