655 research outputs found

    La Salmonelosis como Factor de Riesgo de Mortinatalidad en Cuyes

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    The association between positive cases of Salmonella sp isolated from vaginal swabs collected within 24 hours of the parturition and stillbirth in a guinea pig farm in Huancayo, Peru was evaluated. The study included 258 breeding females using a CaseControl design, where litter size was paired between the two groups and parity and number of birth and barn of the breeding female were used as co-variables. In the ‘Case’ group were included females with at least one stillbirth per litter and in the ‘Control’ group were included females where the entire litter was alive. Results showed that 8.5% of the breeding females in the ‘Case’ group were positive to Salmonella sp, and by the logistic regression analysis was estimated an Odds Ratio of 4.32 (95% confidence interval; p<0.05) for positive cases in relation to the controls. On the other hand, the cause of death in 91.5% (118/129) of the females with stillbirths was due to other infectious or noninfectious causes. The results show that Salmonella should be considered as a cause of stillbirths in guinea pigs.Se evaluĂł la asociaciĂłn entre casos positivos a aislamiento de Salmonella sp a partir de hisopados vaginales dentro de las 24 horas del parto y la mortinatalidad en una granja de cuyes en Huancayo, PerĂș. Se trabajĂł con 258 cuyes siguiendo un diseño de Caso-Control, pareando el tamaño de camada y utilizando como covariables al nĂșmero de parto y el galpĂłn de procedencia de la reproductora. En el grupo de ‘Caso’, se incluyeron hembras en cuyo parto hubo por lo menos un mortinato y en el ‘Control’ hembras con toda la camada viva. El 8.5% de las reproductoras en el grupo de ‘Caso’ resultaron positivas a Salmonella sp, y mediante el anĂĄlisis de regresiĂłn logĂ­stica se estimĂł una Odds Ratio de 4.32 (95% de intervalo de confianza, p<0.05) de los casos positivos respecto a los controles. Por otro lado, la causa de muerte en el 91.5% (118/129) de hembras con mortinatos se deberĂ­a a otras causas infeccionas o a causas no infecciosas. Los resultados indican que la salmonelosis debe ser considerada como una de las causas de mortinatalidad en cuyes

    AGRONOMIC EVALUATION AND CHEMICAL COMPOSITION OF AFRICAN STAR GRASS (Cynodon plectostachyus) IN THE SOUTHERN REGION OF THE STATE OF MEXICO

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    African Star Grass is one of the forage resources most commonly used by farmers in regions with warm-humid climates. This study was carried out to determine the nutritional and agronomic characteristics of African Star Grass (Cynodon plectostachyus) through the following variables: crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), organic matter digestibility (OMD), net forage accumulation (NFA), stem:leaf ratio, and live:dead matter ratio in the three pastures evaluated. The work took place from April 2007 to March 2008, with evaluations carried out on a monthly basis. The data were analyzed in a randomized block design in which the blocks were the pastures, and the treatments were the months of evaluation. There were no differences between the pastures evaluated for the NDF, ADF or OMD (P>0.05). Differences were found, however, in CP, while in the monthly evaluation, differences were found between the periods evaluated (P<0.05) for these variables. Differences were also found in the agronomic evaluation of pastures (P<0.05) among height of pasture, net forage accumulation (NFA), live matter, dead matter, leaf and stem, both among pastures and in the monthly evaluations. African Star Grass can therefore be considered a good choice for milk production systems in the southern region of the state of Mexico, due to its nutritional and agronomic characteristics

    From Spain to Colombia: adaptation process of competences for adolescents with a healthy sexuality program (COMPAS)

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    In Latin America, unplanned pregnancies and sexually transmitted infections (STIs) in youth are two main public health problems. Colombia accounts for one of the highest prevalence rate of HIV and STIs in this population; however, a national standardized sex education program for adolescents is still not available. Competences for adolescents with a Healthy Sexuality (COMPAS for its acronym in Spanish) - a school-based sexual health promotion intervention for Spanish adolescents - was adapted for Colombian youth. We hypothesized that COMPAS key elements would be translated and its effectiveness would be retained. This research describes the adaptation process that resulted in an adapted version for youth in Colombi

    Whither Magnetic Hyperthermia? A Tentative Roadmap

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    The scientific community has made great efforts in advancing magnetic hyperthermia for the last two decades after going through a sizeable research lapse from its establishment. All the progress made in various topics ranging from nanoparticle synthesis to biocompatibilization and in vivo testing have been seeking to push the forefront towards some new clinical trials. As many, they did not go at the expected pace. Today, fruitful international cooperation and the wisdom gain after a careful analysis of the lessons learned from seminal clinical trials allow us to have a future with better guarantees for a more definitive takeoff of this genuine nanotherapy against cancer. Deliberately giving prominence to a number of critical aspects, this opinion review offers a blend of state-of-the-art hints and glimpses into the future of the therapy, considering the expected evolution of science and technology behind magnetic hyperthermia.This work was supported by the NoCanTher project, which has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No 685795. The authors acknowledge support from the COST Association through the COST actions "RADIOMAG" (TD1402) and "MyWAVE" (CA17115). D.O., A.S.-O. and I.R.-R. acknowledge financial support from the Community of Madrid under Contracts No. PEJD-2017-PRE/IND-3663 and PEJ-2018-AI/IND-11069, from the Spanish Ministry of Science through the Ramon y Cajal grant RYC2018-025253-I and Research Networks RED2018-102626-T, as well as the Ministry of Economy and Competitiveness through the grants MAT2017-85617-R, MAT2017-88148R and the "Severo Ochoa" Program for Centers of Excellence in R&D (SEV-2016-0686). M.B. and N.T.K.T. would like to thank EPSRC for funding (grant EP/K038656/1 and EP/M015157/1) and AOARD (FA2386-171-4042) award. This work was additionally supported by the EMPIR program co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation program, grant no. 16NRM04 "MagNaStand". The work was further supported by the DFG grant CRC "Matrix in Vision" (SFB 1340/1 2018, no 372486779, project A02)

    The Spanish Infrared Camera onboard the EUSO-BALLOON (CNES) flight on August 24, 2014

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    The EUSO-Balloon (CNES) campaign was held during Summer 2014 with a launch on August 24. In the gondola, next to the Photo Detector Module (PDM), a completely isolated Infrared camera was allocated. Also, a helicopter which shooted flashers flew below the balloon. We have retrieved the Cloud Top Height (CTH) with the IR camera, and also the optical depth of the nonclear atmosphere have been inferred with two approaches: The first one is with the comparison of the brightness temperature of the cloud and the real temperature obtained after the pertinent corrections. The second one is by measuring the detected signal from the helicopter flashers by the IR Camera, considering the energy of the flashers and the location of the helicopter

    Standalone vertex ïŹnding in the ATLAS muon spectrometer

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    A dedicated reconstruction algorithm to find decay vertices in the ATLAS muon spectrometer is presented. The algorithm searches the region just upstream of or inside the muon spectrometer volume for multi-particle vertices that originate from the decay of particles with long decay paths. The performance of the algorithm is evaluated using both a sample of simulated Higgs boson events, in which the Higgs boson decays to long-lived neutral particles that in turn decay to bbar b final states, and pp collision data at √s = 7 TeV collected with the ATLAS detector at the LHC during 2011

    Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC

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    Measurements are presented of production properties and couplings of the recently discovered Higgs boson using the decays into boson pairs, H →γ Îł, H → Z Z∗ →4l and H →W W∗ →lÎœlÎœ. The results are based on the complete pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV, corresponding to an integrated luminosity of about 25 fb−1. Evidence for Higgs boson production through vector-boson fusion is reported. Results of combined ïŹts probing Higgs boson couplings to fermions and bosons, as well as anomalous contributions to loop-induced production and decay modes, are presented. All measurements are consistent with expectations for the Standard Model Higgs boson

    Measurement of the top quark-pair production cross section with ATLAS in pp collisions at \sqrt{s}=7\TeV

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    A measurement of the production cross-section for top quark pairs(\ttbar) in pppp collisions at \sqrt{s}=7 \TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in two different topologies: single lepton (electron ee or muon Ό\mu) with large missing transverse energy and at least four jets, and dilepton (eeee, ΌΌ\mu\mu or eΌe\mu) with large missing transverse energy and at least two jets. In a data sample of 2.9 pb-1, 37 candidate events are observed in the single-lepton topology and 9 events in the dilepton topology. The corresponding expected backgrounds from non-\ttbar Standard Model processes are estimated using data-driven methods and determined to be 12.2±3.912.2 \pm 3.9 events and 2.5±0.62.5 \pm 0.6 events, respectively. The kinematic properties of the selected events are consistent with SM \ttbar production. The inclusive top quark pair production cross-section is measured to be \sigmattbar=145 \pm 31 ^{+42}_{-27} pb where the first uncertainty is statistical and the second systematic. The measurement agrees with perturbative QCD calculations.Comment: 30 pages plus author list (50 pages total), 9 figures, 11 tables, CERN-PH number and final journal adde

    Measurement of the top quark pair cross section with ATLAS in pp collisions at √s=7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton

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    A measurement of the cross section of top quark pair production in proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 7 TeV is reported. The data sample used corresponds to an integrated luminosity of 2.05 fb -1. Events with an isolated electron or muon and a τ lepton decaying hadronically are used. In addition, a large missing transverse momentum and two or more energetic jets are required. At least one of the jets must be identified as originating from a b quark. The measured cross section, σtt-=186±13(stat.)±20(syst.)±7(lumi.) pb, is in good agreement with the Standard Model prediction
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