COOPERATION OPPORTUNITIES BETWEEN EURASIAN ECONOMIC UNION AND ASSOCIATION OF SOUTHEAST ASIAN NATIONS

The article examines modern economic and integration processes in the Association of Southeast Asian Nations (ASEAN) in the context of opportunities and constraints to implement the foreign economic policy of Russia and the Eurasian Economic Union (EAEU) in the region. The results of the research revealed systemic problems of an economic and administrative nature, those are limiting economic cooperation to projects of a narrow group of state corporations and state companies, mainly in the field of foreign trade, energy and military-technical cooperation. The analysis and conclusions can be used in the framework of bilateral consultations on cooperation of ASEAN and the EAEU. However, such cooperation has priority for Russia and EAEU and it should be viewed as a positive trend

Ultrasound parameters for evaluating local hemodynamics of internal carotid artery anomalies

Background: Despite the high prevalence of internal carotid artery (ICA) anomalies, there is still no consensus on which parameters should be used to evaluate their local hemodynamics and what significance each parameter holds.Objective: To determine the significance of various ultrasound parameters for evaluating the local hemodynamics of ICA anomalies.Materials and methods: In our cross-sectional observational study 427 outpatients underwent carotid ultrasound. To evaluate the significance of various ultrasound parameters for local hemodynamics assessment, we used a cluster analysis for the entire sample (n = 386), taking into account the deformation coefficient, angle of deformation, blood flow turbulence at the site of maximum deformation, and peak blood flow velocity at the site of maximum deformation. Based on the cluster analysis results, we did a discriminant function analysis.Results: During the clustering of patients from the total sample (n = 386), 3 clusters were formed. We did a discriminant function analysis to evaluate the indicators used. We found that all of them had a small Wilks’ Lambda indicating their greater discriminatory ability. The deformation coefficient was the most significant parameter as it had the smallest value (0.26). “Tolerance” analysis showed that the deformation coefficient is the most independent indicator (0.67).Conclusions: Our study showed that the most significant and independent parameter for evaluating the local hemodynamics of ICA anomalies is the deformation coefficient, with the blood flow turbulence being the least significant parameter

Russian Sentence Corpus: Benchmark Measures of Eye Movements in Reading in Russian

This article introduces a new corpus of eye movements in silent reading—the Russian Sentence Corpus (RSC). Russian uses the Cyrillic script, which has not yet been investigated in cross-linguistic eye movement research. As in every language studied so far, we confirmed the expected effects of low-level parameters, such as word length, frequency, and predictability, on the eye movements of skilled Russian readers. These findings allow us to add Slavic languages using Cyrillic script (exemplified by Russian) to the growing number of languages with different orthographies, ranging from the Roman-based European languages to logographic Asian ones, whose basic eye movement benchmarks conform to the universal comparative science of reading (Share, 2008). We additionally report basic descriptive corpus statistics and three exploratory investigations of the effects of Russian morphology on the basic eye movement measures, which illustrate the kinds of questions that researchers can answer using the RSC. The annotated corpus is freely available from its project page at the Open Science Framework: https://osf.io/x5q2r/

Measurement of Direct fₒ(980) Photoproduction on the Proton

We report on the results of the first measurement of exclusive f0(980) meson photoproduction on protons for Eγ = 3.0–3.8  GeV and −t = 0.4–1.0  GeV2 . Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. The resonance was detected via its decay in the π+π− channel by performing a partial wave analysis of the reaction γp→pπ+π− . Clear evidence of the f0(980) meson was found in the interference between P and S waves at M π+π− ∼1  GeV. The S -wave differential cross section integrated in the mass range of the f0(980) was found to be a factor of about 50 smaller than the cross section for the ρ meson. This is the first time the f0(980) meson has been measured in a photoproduction experiment

Exclusive Photoproduction of the Cascade Ξ Hyperons

We report on the first measurement of exclusive Ξ-(1321) hyperon photoproduction in p → K+K+Ξ- for 3.2 \u3c E \u3c 3.9 GeV. The final state is identified by the missing mass in p(,K+K+)X measured with the CLAS detector at Jefferson Laboratory. We have detected a significant number of the ground state Ξ-(1321)1/2+ and have estimated the total cross section for its production. We also have strong evidence for the first excited state Ξ-(1530)3/2+. Photoproduction provides a copious source of Ξ\u27s. We discuss the possibilities of a search for the recently proposed Ξ5- and Ξ5+ pentaquarks

Electron Scattering from High-Momentum Neutrons in Deuterium

We report results from an experiment measuring the semiinclusive reaction 2H(e,e′ps) in which the proton ps is moving at a large angle relative to the momentum transfer. If we assume that the proton was a spectator to the reaction taking place on the neutron in deuterium, the initial state of that neutron can be inferred. This method, known as spectator tagging, can be used to study electron scattering from high-momentum (off-shell) neutrons in deuterium. The data were taken with a 5.765 GeV electron beam on a deuterium target in Jefferson Laboratory\u27s Hall B, using the CEBAF large acceptance spectrometer. A reduced cross section was extracted for different values of final state missing mass W∗, backward proton momentum →ps, and momentum transfer Q2. The data are compared to a simple plane wave impulse approximation (PWIA) spectator model. A strong enhancement in the data observed at transverse kinematics is not reproduced by the PWIA model. This enhancement can likely be associated with the contribution of final state interactions (FSI) that were not incorporated into the model. Within the framework of the simple spectator model, a “bound neutron structure function” Feff2n was extracted as a function of W∗ and the scaling variable x∗ at extreme backward kinematics, where the effects of FSI appear to be smaller. For ps \u3e 0.4 GeV/c, where the neutron is far off-shell, the model overestimates the value of Feff2n in the region of x∗ between 0.25 and 0.6. A dependence of the bound neutron structure function on the neutron\u27s “off-shell-ness” is one possible effect that can cause the observed deviation

Measurement of the Deuteron Structure Function F₂ in the Resonance Region and Evaluation of its Moments

Inclusive electron scattering off the deuteron has been measured to extract the deuteron structure function F2 with the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. The measurement covers the entire resonance region from the quasielastic peak up to the invariant mass of the final-state hadronic system W similar or equal to 2.7 GeV with four-momentum transfers Q2 from 0.4 to 6 (GeV/c)2. These data are complementary to previous measurements of the proton structure function F2 and cover a similar two-dimensional region of Q2 and Bjorken variable x. Determination of the deuteron F2 over a large x interval including the quasielastic peak as a function of Q2, together with the other world data, permit a direct evaluation of the structure function moments for the first time. By fitting the Q2 evolution of these moments with an OPE-based twist expansion we have obtained a separation of the leading twist and higher twist terms. The observed Q2 behavior of the higher twist contribution suggests a partial cancelation of different higher twists entering into the expansion with opposite signs. This cancelation, found also in the proton moments, is a manifestation of the duality phenomenon in the F2 structure function

Complete Measurement of Three-Body Photodisintegration of \u3csup\u3e3\u3c/sup\u3eHe for Photon Energies Between 0.35 and 1.55 GeV

The three-body photodisintegration of 3He has been measured with the CLAS detector at Jefferson Lab, using tagged photons of energies between 0.35 GeV and 1.55 GeV. The large acceptance of the spectrometer allowed us for the first time to cover a wide momentum and angular range for the two outgoing protons. Three kinematic regions dominated by either two- or three-body contributions have been distinguished and analyzed. The measured cross sections have been compared with results of a theoretical model, which, in certain kinematic ranges, have been found to be in reasonable agreement with the data