Measurements of Ξ(1530)0{\Xi \left( 1530\right) ^{0}} and Ξ‾(1530)0{\overline{\Xi }\left( 1530\right) ^{0}} production in proton–proton interactions at sNN\sqrt{s_{NN}} = 17.3 = 17.3 GeV \text{ GeV } in the NA61/SHINE experiment

Double-differential yields of $\Xi\left(1530\right)^{0}$ and $\overline{\Xi}\left(1530\right)^{0}$ resonances produced in \pp interactions were measured at a laboratory beam momentum of 158~\GeVc. This measurement is the first of its kind in \pp interactions below LHC energies. It was performed at the CERN SPS by the \NASixtyOne collaboration. Double-differential distributions in rapidity and transverse momentum were obtained from a sample of 26$\cdot$10$^6$ inelastic events. The spectra are extrapolated to full phase space resulting in mean multiplicity of $\Xi\left(1530\right)^{0}$ (6.73 $\pm$ 0.25 $\pm$ 0.67)$\times10^{-4}$ and $\overline{\Xi}\left(1530\right)^{0}$ (2.71 $\pm$ 0.18 $\pm$ 0.18)$\times10^{-4}$. The rapidity and transverse momentum spectra and mean multiplicities were compared to predictions of string-hadronic and statistical model calculations

Measurements of Ξ−{\Xi }{^-} and Ξ‾+\overline{\Xi }{^+} production in proton–proton interactions at sNN\sqrt{s_{NN}}=17.3 GeV = 17.3 GeV in the NA61/SHINE experiment

International audienceThe production of $\Xi (1321)^{-}$ and $\overline{\Xi }(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 $\hbox {Ge}\hbox {V}\!/\!c$. Double differential distributions in rapidity ${y}$ and transverse momentum $p_{T}$ are obtained from a sample of 33M inelastic events. They allow to extrapolate the spectra to full phase space and to determine the mean multiplicity of both ${\Xi }{^-}$ and $\overline{\Xi }{^+}$. The rapidity and transverse momentum spectra are compared to transport model predictions. The ${\Xi }{^-}$ mean multiplicity in inelastic p+p interactions at 158 $\hbox {Ge}\hbox {V}\!/\!c$ is used to quantify the strangeness enhancement in A+A collisions at the same centre-of-mass energy per nucleon pair

БЫСТРЫЙ СКРИНИНГ СОДЕРЖАНИЯ ФЛАВОНОИДОВ В РАСТИТЕЛЬНОМ СЫРЬЕ МЕТОДОМ СПЕКТРОСКОПИИ ЯМР 1Н

Assessing the prospects of various types of plant biomass for the extraction of biologically active substances requires the development of simple and rapid methods for measuring their content in raw materials. A new approach for measuring the content of various flavonoids groups in plant extracts using 1H NMR spectroscopy has been developed, which allows to characterize the resource capabilities of the raw material and study the effects on their composition different environmental factors without complex sample preparation and standard samples.Оценка перспективности различных видов растительной биомассы для извлечения биологически активных веществ (БАВ) требует разработки простых и быстрых методов измерения их содержания в сырье. Разработан новый подход к измерению содержания различных групп флавоноидов в растительных экстрактах методом спектроскопии ЯМР 1Н, позволяющий при минимальной пробоподготовке без использования стандартных образцов характеризовать ресурсные возможности сырья и изучать влияние на его состав сортовых, климатических и иных экологических факторов

Problems of fire and explosion safety in context of sustainable development

The potentialities and some ways of achieving technological purposes with minimum expenses on fire and explosion prevention and in some cases with obtaining additional direct or indirect profit are shown using concrete examples. This approach assumes the developed scientific basis and a close colloboration between technologists and specialists in safety