Charged particle production in the Pb+Pb system at 158 GeV/c per nucleon

Charged particle multiplicities from high multiplicity central interactions of 158 GeV/nucleon Pb ions with Pb target nuclei have been measured in the central and far forward projectile spectator regions using emulsion chambers. Multiplicities are significantly lower than predicted by Monte Carlo simulations. We examine the shape of the pseudorapidity distribution and its dependence on centrality in detail.Comment: 17 pages text plus 12 figures in postscript 12/23/99 -- Add TeX version of sourc

The NEWS score for the prediction of adverse outcomes in emergency department patients

The purpose of the study was to estimate the NEWS score as an outcome predictor in emergency department patients of Yekaterinburg City Clinical Hospital №40. The study was single-centered, prospective. Composite outcome of mortality and ICU length of stay > 1 day was the primary outcome of the study. The NEWS score AUROC was 0,856 (95% CI 0,797-0,915), it defines the NEWS score as a very good predictorИсследование ставило цель оценить шкалу NEWS в прогнозировании исходов у пациентов приемного отделения на базе ГКБ №40 г. Екатеринбурга. Исследование одноцентровое, проспективное. В качестве конечных точек исследования использовались летальный исход и/или пребывание в ОРИТ >1 суток. Площадь под ROC-кривой шкалы NEWS составила 0,856 (95% ДИ 0,797-0,915), что определяет шкалу NEWS как очень хороший предикто

Nonlinear thermo-optical properties of two-layered spherical system of gold nanoparticle core and water vapor shell during initial stage of shell expansion

Nonlinear thermo-optical properties of two-layered spherical system of gold nanoparticle core and water vapor shell, created under laser heating of nanoparticle in water, were theoretically investigated. Vapor shell expansion leads to decreasing up to one to two orders of magnitude in comparison with initial values of scattering and extinction of the radiation with wavelengths 532 and 633 nm by system while shell radius is increased up to value of about two radii of nanoparticle. Subsequent increasing of shell radius more than two radii of nanoparticle leads to rise of scattering and extinction properties of system over initial values. The significant decrease of radiation scattering and extinction by system of nanoparticle-vapor shell can be used for experimental detection of the energy threshold of vapor shell formation and investigation of the first stages of its expansion

Ритмическая транскраниальная магнитная стимуляция в терапии нейропатической боли, сопровождающейся коморбидной депрессией: обзор эффективных параметров лечебных протоколов

Neuropathic pain affects 7 % of the general population worldwide, it is often resistant to analgesic treatments and is complicated with depressive states in 57–65 % of this patients’ cohort. Ongoing research of current therapeutic approaches, including repetitive transcranial magnetic stimulation (rTMS) use in neuropathic pain and depression, grants new data about the details of treatment protocols’ designs. The aim of our literature review was to evaluate those parameters of the treatment protocols which proved significant efficacy in the management of the neuropathic pain with comorbid depression.Focusing on the Scopus, Elsevier and PubMed databases search, we have found 639 peer‑review articles. 23 studies have been included into the data analysis, whereas others were excluded based on their heterogeneous study design. Across the data analysis we evaluated such rTMS parameters as the type of a coil, type of stimulation area, locus of gained evoked motor potential, amplitude of stimulation, duration of session, frequency/number of sessions per day/month, tie duration between sessions, number and frequency of trains, amount and frequency of pulses containing and efficacy of treatment. Those studies that performed repetitive transcranial magnetic stimulation using the figure‑of‑8 coil over the M1 brain area, for 10 or more daily sessions with duration from 7 up to 40 minutes, of 10–20 Hz frequency, intensity 80–90 % of resting motor threshold and total pulses number over 1500 per session demonstrated the greater efficacy in pain level decrease and depression scores reduction among neuropathic pain patients with comorbid depression. Conducting an additional maintenance phase of treatment prolonged the therapeutic effect of the course.Based on the data review, the parameters of the most efficient rTMS protocols’ designs in management of patients with neuropathic pain and comorbid depression have been revealed. Further research requires investigation of other promising indicators of rTMS efficacy use in neuropathic pain with comorbid depression, such as stimulation over multiple brain areas, the duration/timing of additional maintenance phase of treatment, and the figure‑of‑8 coil orientation options.По общемировым данным, нейропатическая боль встречается у 7 % населения и в 57–65 % случаев сопровождается коморбидной депрессией, что, в свою очередь, усугубляет течение болезни и ухудшает качество жизни пациентов. Ритмическая транскраниальная магнитная стимуляция (рТМС) представляет собой неинвазивный нефармакологический метод терапии депрессии,  также способный помочь пациентам облегчить восприятие нейропатической боли. Представлен обзор результатов применения протоколов рТМС, продемонстрировавших эффективность в терапии клинических состояний, сопровождающихся нейропатической болью с коморбидной депрессией.Исследуя базы данных Scopus, Elsevier и PubMed , мы обнаружили 639 статей, из которых в соответствии с критериями включения были отобраны 23. Оценке подверглись данные о клинической эффективности рТМС в терапии нейропатической боли и коморбидной депрессии в зависимости от параметров протокола стимуляции, включая тип катушки, целевую зону мозга, продолжительность сеанса, частоту/количество сеансов в день/месяц, а также межсеансовые интервалы, число и частоту импульсов.Протоколы, показавшие наибольшую эффективность, включали такие параметры, как использование катушки в форме восьмерки, направленной на первичную моторную зону (M1), применение рТМС в течение не менее 10 ежедневных сеансов, использование высокочастотной стимуляции (10–20 Гц) с интенсивностью 80–90 % от порога моторного ответа, с длительностью сессии от 7 до 40 мин и с общим количеством импульсов не менее 1500 за сеанс. Проведение дополнительной поддерживающей фазы лечения продлевало терапевтический эффект курса.Результаты анализа данных литературы предполагают, что определенная комбинация параметров стимуляции может быть более эффективной для терапии нейропатической боли, сопровождающейся коморбидной депрессией, тем самым открывая новые возможности терапии для пациентов с резистентными состояниями, плохо поддающимися фармакологической коррекции. Рассмотрение параметров протоколов рТМС выявило необходимость дальнейшего изучения метода в лечении указанных клинических состояний не только в рамках репликации данных, но и для анализа таких дополнительных параметров, как последовательная или одновременная стимуляция нескольких областей мозга, угол поворота катушки, а также для уточнения времени поддерживающей фазы стимуляции

Erratum to: 36th International Symposium on Intensive Care and Emergency Medicine

[This corrects the article DOI: 10.1186/s13054-016-1208-6.]

Perfluorocarbon nanodroplets stabilized by fluorinated surfactants: characterization and potentiality as theranostic agents

International audienceWe aim to produce emulsions that can act as contrast agents and drug carriers for cancer imaging and therapy. To increase tumor detection and decrease drug side effects, it is desirable to take advantage of the enhanced permeability and retention effect that allows nanoparticles to accumulate in tumor tissues. To do so, the emulsion droplets need to be small enough and stable over time in addition to enhancing image contrast and carrying a drug payload. In the present study, we have investigated the properties and potentiality as theranostic agents of perfluorocarbon emulsions stabilized by a biocompatible fluorinated surfactant called FTAC. To obtain better control of our system, the synthesis of those surfactants was studied and their physico-chemical properties were explored in different configurations such as micelles, in the perfluorocarbon droplet shell and at water/air and water/perfluorocarbon interfaces. The originality of this work lies in the determination of numerous characteristics of emulsions and fluorinated surfactants including surface tension, interfacial tension, critical micelle concentration, adiabatic compressibility, density, size distribution (aging studies), and ultrasonic echogenicity. These characterization studies were conducted using different types of FTAC and several perfluorocarbons (perfluoropentane, perfluorohexane, and perfluorooctyl bromide). We have also shown that a hydrophobic drug could be encapsulated in the FTAC-stabilized perfluorocarbon droplets thanks to triacetin addition. Finally, the perfluorocarbon emulsions were detectable in vitro by a clinical 3 T MRI scanner, equipped with a double frequency 19F/1H transmit–receive coil