185 research outputs found

    Adult respiratory distress syndrome in the peripartum period: a case report

    Get PDF
    Universitatea de Stat de Medicină şi Farmacie „Nicolae Testemiţanu”, Spitalul Clinic Republican, Spitalul Clinic Municipal nr. 1Patologia respiratorie în perioada peripartum implică un risc major, atât pentru viaţa mamei, cât şi a copilului. Insuficienţa pulmonară acută creşte rata mortalităţii materne în sarcină până la 90%, comparativ cu 50-60% în afara sarcinii. Rata insuficienţei pulmonare primare este mică comparativ cu alte patologii asociate sarcinii, constituind în mediu 5%. În marea majoritate a cazurilor ea apare secundar, ca component al insuficienţei poliorganice. Modificarea fiziologiei pulmonare în perioada peripartum necesită optimizarea conduitei individuale atât în timpul sarcinii, cât şi la naştere. Tratamentul contemporan al insuficienţei respiratorii este destul de costisitor, necesitând un monitoring sofisticat şi individualizat.Respiratory pathology in pregnancy and labor involves a double risk, both for mother’s and child’s life. Acute pulmonary failure increases the rate of maternal mortality up to 90% during the pregnancy in comparison with 50-60% out of pregnancy. The incidence of pulmonary insufficiency is rather low in comparison with the other associated pregnancy pathology, established to 5%. In the most of the cases it occurs secondary as a compound of MODS. Pulmonary physiology is essentially modified in pregnancy, raising the necessity of peculiar pregnancy and labor management applied. The contemporary treatment of pulmonary insufficiency is rather expensive, requiring advanced and individualized monitoring

    Amicable pairs and aliquot cycles for elliptic curves

    Full text link
    An amicable pair for an elliptic curve E/Q is a pair of primes (p,q) of good reduction for E satisfying #E(F_p) = q and #E(F_q) = p. In this paper we study elliptic amicable pairs and analogously defined longer elliptic aliquot cycles. We show that there exist elliptic curves with arbitrarily long aliqout cycles, but that CM elliptic curves (with j not 0) have no aliqout cycles of length greater than two. We give conjectural formulas for the frequency of amicable pairs. For CM curves, the derivation of precise conjectural formulas involves a detailed analysis of the values of the Grossencharacter evaluated at a prime ideal P in End(E) having the property that #E(F_P) is prime. This is especially intricate for the family of curves with j = 0.Comment: 53 page

    Studii asupra germinaţiei seminţelor şi răsăririi plantelor de revent (Rheum Rhabarbarum L.)

    Get PDF
    Seed germination and plantlets spring at rhubarb species were studied in the standard conditions on a peat substrate. Results revealed that the germination rate was of 90%, and spring rate was of 82%. Germination period had 12 days, starting in the 7-th day of experiment, and the spring was done in 10 day

    Mulcirea şi fertilizarea ca principal mijloc tehnologic într-o cultură organică de broccoli

    Get PDF
    The purpose of the presentpaper is to evaluate the influence of mulching and fertilization on an early broccoli crop grown according to organic farming norms. The research was carried out in the experimental field of the Agronomic University of Iaşi, Romania. In the bifactorial experiment, the influence of mulching with three graduationswas tested-unmulched-Ct, mulching with polyethylene foilof 15 and 30 microns thick,as well as the fertilization with three graduations -unfertilized-Mt, organic fertilization and application of microorganisms, under the conditions of the years 2018 and 2019. The culture was established fromseedlings of42 days, in strips of 2 rows each, the distance between strips beingof80 cm and between rows of 60 cm. The distance between plants was of 25 cm,resulting in a density of about 57 thousand plants per hectare. The obtained results indicate increases inthe yield,in the case of the mulched and organicallyfertilized variants, the best yields being obtained in the case of the mulched variant with 30 microns foil and organically fertilized with Orgevi

    Jet energy measurement with the ATLAS detector in proton-proton collisions at root s=7 TeV

    Get PDF
    The jet energy scale and its systematic uncertainty are determined for jets measured with the ATLAS detector at the LHC in proton-proton collision data at a centre-of-mass energy of √s = 7TeV corresponding to an integrated luminosity of 38 pb-1. Jets are reconstructed with the anti-kt algorithm with distance parameters R=0. 4 or R=0. 6. Jet energy and angle corrections are determined from Monte Carlo simulations to calibrate jets with transverse momenta pT≥20 GeV and pseudorapidities {pipe}η{pipe}<4. 5. The jet energy systematic uncertainty is estimated using the single isolated hadron response measured in situ and in test-beams, exploiting the transverse momentum balance between central and forward jets in events with dijet topologies and studying systematic variations in Monte Carlo simulations. The jet energy uncertainty is less than 2. 5 % in the central calorimeter region ({pipe}η{pipe}<0. 8) for jets with 60≤pT<800 GeV, and is maximally 14 % for pT<30 GeV in the most forward region 3. 2≤{pipe}η{pipe}<4. 5. The jet energy is validated for jet transverse momenta up to 1 TeV to the level of a few percent using several in situ techniques by comparing a well-known reference such as the recoiling photon pT, the sum of the transverse momenta of tracks associated to the jet, or a system of low-pT jets recoiling against a high-pT jet. More sophisticated jet calibration schemes are presented based on calorimeter cell energy density weighting or hadronic properties of jets, aiming for an improved jet energy resolution and a reduced flavour dependence of the jet response. The systematic uncertainty of the jet energy determined from a combination of in situ techniques is consistent with the one derived from single hadron response measurements over a wide kinematic range. The nominal corrections and uncertainties are derived for isolated jets in an inclusive sample of high-pT jets. Special cases such as event topologies with close-by jets, or selections of samples with an enhanced content of jets originating from light quarks, heavy quarks or gluons are also discussed and the corresponding uncertainties are determined. © 2013 CERN for the benefit of the ATLAS collaboration

    Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

    Get PDF
    The inclusive and dijet production cross-sections have been measured for jets containing b-hadrons (b-jets) in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV, using the ATLAS detector at the LHC. The measurements use data corresponding to an integrated luminosity of 34 pb^-1. The b-jets are identified using either a lifetime-based method, where secondary decay vertices of b-hadrons in jets are reconstructed using information from the tracking detectors, or a muon-based method where the presence of a muon is used to identify semileptonic decays of b-hadrons inside jets. The inclusive b-jet cross-section is measured as a function of transverse momentum in the range 20 < pT < 400 GeV and rapidity in the range |y| < 2.1. The bbbar-dijet cross-section is measured as a function of the dijet invariant mass in the range 110 < m_jj < 760 GeV, the azimuthal angle difference between the two jets and the angular variable chi in two dijet mass regions. The results are compared with next-to-leading-order QCD predictions. Good agreement is observed between the measured cross-sections and the predictions obtained using POWHEG + Pythia. MC@NLO + Herwig shows good agreement with the measured bbbar-dijet cross-section. However, it does not reproduce the measured inclusive cross-section well, particularly for central b-jets with large transverse momenta.Comment: 10 pages plus author list (21 pages total), 8 figures, 1 table, final version published in European Physical Journal

    Predicting Outcomes of Prostate Cancer Immunotherapy by Personalized Mathematical Models

    Get PDF
    Therapeutic vaccination against disseminated prostate cancer (PCa) is partially effective in some PCa patients. We hypothesized that the efficacy of treatment will be enhanced by individualized vaccination regimens tailored by simple mathematical models.We developed a general mathematical model encompassing the basic interactions of a vaccine, immune system and PCa cells, and validated it by the results of a clinical trial testing an allogeneic PCa whole-cell vaccine. For model validation in the absence of any other pertinent marker, we used the clinically measured changes in prostate-specific antigen (PSA) levels as a correlate of tumor burden. Up to 26 PSA levels measured per patient were divided into each patient's training set and his validation set. The training set, used for model personalization, contained the patient's initial sequence of PSA levels; the validation set contained his subsequent PSA data points. Personalized models were simulated to predict changes in tumor burden and PSA levels and predictions were compared to the validation set. The model accurately predicted PSA levels over the entire measured period in 12 of the 15 vaccination-responsive patients (the coefficient of determination between the predicted and observed PSA values was R(2) = 0.972). The model could not account for the inconsistent changes in PSA levels in 3 of the 15 responsive patients at the end of treatment. Each validated personalized model was simulated under many hypothetical immunotherapy protocols to suggest alternative vaccination regimens. Personalized regimens predicted to enhance the effects of therapy differed among the patients.Using a few initial measurements, we constructed robust patient-specific models of PCa immunotherapy, which were retrospectively validated by clinical trial results. Our results emphasize the potential value and feasibility of individualized model-suggested immunotherapy protocols
    • …
    corecore