Rapid Change of Multiplicity Fluctuations in System Size Dependence at SPS Energies

Recent preliminary results on multiplicity fluctuations in p+p, Be+Be and Ar+Sc collisions from the NA61/SHINE collaboration are presented. The scaled variance of charged hadron multiplicity changes little when going from p+p to Be+Be collisions and drops dramatically from Be+Be to Ar+Sc interactions. The centrality selection procedure and the influence of volume fluctuations are discussed. Comparisons with the EPOS event generator are shown

Sarcopenia as a Prognostic Factor of Hepatotoxicity and Lower Survival Rate in Chemotherapy of Pancreatic Cancer

Aim. Evaluation of sarcopenia’s effect on hepatotoxicity in patients with locally advanced and metastatic pancreatic cancer (PC).Materials and methods. A retro-prospective study included 66 patients (30 men and 36 women) with locally advanced and metastatic PC receiving chemotherapy treatment in the form of gemcitabine monotherapy and in combination with platinum, taxanes, fluoropyrimidines in standard chemotherapy protocols. Sarcopenia was observed using computer tomography with intravenous bolus contrast and nonionic contrast medium with iodine concentration 350 mg/ml. Muscle tissue area (cm2) was estimated with two consecutive axial slices at the level of L3 lumbar vertebra. Sarcopenia was determined with the L3 skeletal muscle index (L3SMI) calculated as a ratio of skeletal muscle area at the L3 vertebra to patient’s height squared. Condition was marked as sarcopenia at L3SMI values of 52.4 cm2/m2 in men and 38.5 cm2/m2 in women.Results. Hepatotoxicity was revealed in 57.5% (n = 38) of PC patients receiving chemotherapy, with 60.87% (n = 28) of them having sarcopenia. In patients with sarcopenia and no toxic effects, the total survival median was 41 months, whilst hepatotoxicity combined with sarcopenia was associated with almost a 3 times lower median survival (14.1 months). A better survival trend was observed in a polychemotherapy cohort without sarcopenia, with the total survival median of 17.0 months compared to 15.2 months in such patients with sarcopenia (p = 0.781). A positive trend towards survival was observed in a hepatotoxicity-negative cohort, with the total survival median of 18.7 months compared to 16.9 months in PC patients with toxic side effects (p = 0.174).Conclusions. Sarcopenia may be used as a prognostic factor of lower survival rate and higher hepatotoxic effect of chemotherapy in patients with locally advanced and metastatic pancreatic cancer

Влияние скармливания кобальта в органической фороме на физиологическое состояние и продуктивность молодняка крупного рогатого скота

Замена сернокислого кобальта на уксуснокислый способствует снижению содержания аммиака в рубцовой жидкости на 1,2-5,1%, повышению продуктивности животных на 2,7%- 4,5% и эффективности использования корма на 1,8%-3,6%

Measurements of π±\pi^\pm, K±^\pm, p and pˉ\bar{\textrm{p}} spectra in proton-proton interactions at 20, 31, 40, 80 and 158 GeV/c with the NA61/SHINE spectrometer at the CERN SPS

Measurements of inclusive spectra and mean multiplicities of $\pi^\pm$, K$^\pm$, p and $\bar{\textrm{p}}$ produced in inelastic p+p interactions at incident projectile momenta of 20, 31, 40, 80 and 158 GeV/c ($\sqrt{s} =$ 6.3, 7.7, 8.8, 12.3 and 17.3 GeV, respectively) were performed at the CERN Super Proton Synchrotron using the large acceptance NA61/SHINE hadron spectrometer. Spectra are presented as function of rapidity and transverse momentum and are compared to predictions of current models. The measurements serve as the baseline in the NA61/SHINE study of the properties of the onset of deconfinement and search for the critical point of strongly interacting matter

Multiplicity and transverse momentum fluctuations in inelastic proton-proton interactions at the CERN Super Proton Synchrotron

Measurements of multiplicity and transverse momentum fluctuations of charged particles were performed in inelastic p+p interactions at 20, 31, 40, 80 and 158 GeV/c beam momentum. Results for the scaled variance of the multiplicity distribution and for three strongly intensive measures of multiplicity and transverse momentum fluctuations \$\Delta[P_{T},N]\$, \$\Sigma[P_{T},N]\$ and \$\Phi_{p_T}\$ are presented. For the first time the results on fluctuations are fully corrected for experimental biases. The results on multiplicity and transverse momentum fluctuations significantly deviate from expectations for the independent particle production. They also depend on charges of selected hadrons. The string-resonance Monte Carlo models EPOS and UrQMD do not describe the data. The scaled variance of multiplicity fluctuations is significantly higher in inelastic p+p interactions than in central Pb+Pb collisions measured by NA49 at the same energy per nucleon. This is in qualitative disagreement with the predictions of the Wounded Nucleon Model. Within the statistical framework the enhanced multiplicity fluctuations in inelastic p+p interactions can be interpreted as due to event-by-event fluctuations of the fireball energy and/or volume.Comment: 18 pages, 12 figure

Measurements of π±\pi^\pm, K±K^\pm, KS0K^0_S, Λ\Lambda and proton production in proton-carbon interactions at 31 GeV/cc with the NA61/SHINE spectrometer at the CERN SPS

Measurements of hadron production in p+C interactions at 31 GeV/c are performed using the NA61/ SHINE spectrometer at the CERN SPS. The analysis is based on the full set of data collected in 2009 using a graphite target with a thickness of 4% of a nuclear interaction length. Inelastic and production cross sections as well as spectra of $\pi^\pm$, $K^\pm$, p, $K^0_S$ and $\Lambda$ are measured with high precision. These measurements are essential for improved calculations of the initial neutrino fluxes in the T2K long-baseline neutrino oscillation experiment in Japan. A comparison of the NA61/SHINE measurements with predictions of several hadroproduction models is presented.Comment: v1 corresponds to the preprint CERN-PH-EP-2015-278; v2 matches the final published versio

Метастатическое поражение кожи при меланоме

In order to evaluate the incidence, clinical features and prognosis of cutaneous tumor metastases, the records of adult patients with melanoma treated over a thirteen year period were examined. The diagnosis of Melanoma skin metastases was established in 221 (11,3%) of 1,948 patients. Each diagnosis was histologically confirmed by evaluation of both the primary tumor and the skin. Metastatic cutaneous melanoma presented with a wide variety of lesions: satellite, thrombophlebitis-like, inflammatory and nodular. In some cases the combination of satellite and nodular metastases was observed. Cancer patients with cutaneous metastases have a poor prognosis: the median survival of these patients is reduced by almost a half in comparison with cancer patients without cutaneous metastases.Для оценки частоты, клинических особенностей и прогноза кожных метастазов опухоли был произведен анализ данных за 13-летний период. Под наблюдением находилось 1948 пациентов с морфологически верифицированной меланомой, из которых у 221 (11,3%) пациентов были выявлены метастазы в кожу. В зависимости от клинической картины кожных метастазов меланомы и путей их метастазирования мы выделили следующие формы: сателлитная, тромбофлебическая, рожеподобная и узловая. В некоторых случаях диагностировали одновременно сателлитную и узловую формы. Медиана выживаемости больных меланомой с метастазами в кожу снижается почти вдвое по сравнению с пациентами с меланомой без кожных метастазов

Эффективность использования в кормлении молодняка крупного рогатого скота органического хрома

Использование в кормлении молодняка крупного рогатого скота пикулината хрома оказывает положительное влияние на физиологическое состояние животных, способствует усилению процессов пищеварения в рубце, увеличению среднесуточных приростов живой массы

Оценка биоэквивалентности двух таблетированных форм лизиноприла на здоровых добровольцах

Under cross, single, open, randomized trial with 1 week washout period, with two sequences of 18 volunteers studied bioequivalence coated tablets, two manufacturers of lisinopril (20 mg dose). The concentration of lisinopril in the plasma samples was determined using HPLC with fluorimetric detection within 72 hours for the investigated preparations the following pharmacokinetic parameters were calculated:AUC0-∞, Cmax, tmax, Cmax/AUC. 90% confidence interval relations AUC0-∞ compared drugs totaled 0.8520 — 1.2102 for Cmax — 0,9288 — 1,1451. In addition to the 90% confidence intervals, analysis of variance revealed no statistically significant differences between the studied drugs. Concluded bioequivalence compared drugs lisinopril.В рамках перекрёстного, однократного, открытого, рандомизированного исследования с периодом отмывки 1 неделя, с двумя последовательностями на 18 добровольцах изучена биоэквивалентность таблеток, покрытых оболочкой, лизиноприла двух производителей (доза 20 мг). Концентрацию лизиноприла в образцах плазмы крови определяли методом ВЭЖХ с флуориметрическим детектированием в течение 72 ч. Для исследуемых препаратов рассчитаны следующие фармакокинетические параметры: AUC0-∞, Cmax, tmax, Cmax/AUC. 90% доверительный интервал отношений AUC0-» сравниваемых препаратов составил 0,8520 — 1,2102 и для Cmax — 0,9288 — 1,1451. В дополнение к 90% доверительным интервалам, дисперсионный анализ не выявил статистически значимых различий между изучаемыми препаратами. Сделан вывод о биоэквивалентности сравниваемых препаратов лизиноприла

Эффективность использования разных норм глицината цинка в кормлении молодняка крупного рогатого скота

Скармливание молодняку крупного рогатого скота органического соединения цинка в количестве 50%, 75 и 100% от нормы нерганического, повышает содержание в рубце ЛЖК на 2,3-3,7%, продуктивность животных – на 1,4-4,2%, снижает затраты корма на 1,07-3,05%