The cross-section of the process e+e−→π+π− has been measured using about 114000 events collected by the CMD-2 detector at the VEPP-2M e+e− collider in the center-of-mass energy range from 0.61 to ...0.96 GeV. Results of the pion form factor determination with a 0.6% systematic uncertainty are presented. The following values of the ρ- and ω-meson parameters were found: Mρ=(776.09±0.81) MeV, Γρ=(144.46±1.55) MeV, Γ(ρ→e+e−)=(6.86±0.12) keV, Br(ω→π+π−)=(1.33±0.25)%. Implications for the hadronic contribution to the muon anomalous magnetic moment are discussed.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
Abstract
The article discusses the development of a system for recognizing people at a pedestrian crossing. Such recognition system includes a trained classifier and two sets of images taken from an ...open database containing images of city streets from outdoor cameras. Some shortcomings that can be easily solved with the help of the developed recognition system are analyzed. We also studied common methods of detection, for example, the Viola-Jones method, and their advantages in the operation of the system. A comparison of all the considered methods is carried out and the most suitable one for the set goal is selected and the method of constructing a classifier is described separately. This system is becoming more and more relevant with the development of the technological capabilities of urban life and improves its quality due to its smooth operation and good performance indicators.
The process e+e−→ϕ→K+K− has been studied with the CMD-2 detector using about 542 000 events detected in the center-of-mass energy range from 1.01 to 1.034 GeV. The systematic error of the cross ...section is estimated to be 2.2%. The ϕ(1020) meson parameters in the ϕ→K+K− decay channel have been measured: σ0(ϕ→K+K−)=2016±8±44 nb, mϕ=1019.441±0.008±0.080 MeV/c2, Γϕ=4.24±0.02±0.03 MeV, Be+e−BK+K−=(14.27±0.05±0.31)×10−5.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
The article presents an analytical review of methods for cutting process on-line monitoring that are applicable for enhancing the performance of technological production systems and experimental ...verification of some findings of the analytical research. The interrelation between the thermophysical properties of the “tool-workpiece” contact pair and the technological processing conditions along with the cutting operation outcome has been considered. The degree of influence certain factors and the cutting conditions have on the machined surface roughness parameters and the cutting forces components have been analyzed. The analysis results showed the possibility of on-line estimating of the machined surface microrelief of with the application of dynamometric methods for assessing the cutting force vibration in order to increase the assurance reliability of the required quality parameters. There are mathematical models that enable us to reliably predict the values of the surface average roughness and the cutting forces radial and axial components.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
The histone deacetylase (HDAC) enzymes, a class of epigenetic regulators, are historically well established as attractive therapeutic targets. During investigation of trends within clinical trials, ...we have identified a high number of clinical trials involving HDAC inhibitors, prompting us to further evaluate the current status of this class of therapeutic agents. In total, we have identified 32 agents with HDAC‐inhibiting properties, of which 29 were found to interact with the HDAC enzymes as their primary therapeutic target. In this review, we provide an overview of the clinical drug development highlighting the recent advances and provide analysis of specific trials and, where applicable, chemical structures. We found haematologic neoplasms continue to represent the majority of clinical indications for this class of drugs; however, it is clear that there is an ongoing trend towards diversification. Therapies for non‐oncology indications including HIV infection, muscular dystrophies, inflammatory diseases as well as neurodegenerative diseases such as Alzheimer's disease, frontotemporal dementia and Friedreich's ataxia are achieving promising clinical progress. Combinatory regimens are proving to be useful to improve responsiveness among FDA‐approved agents; however, it often results in increased treatment‐related toxicities. This analysis suggests that the indication field is broadening through a high number of clinical trials while several fields of preclinical development are also promising.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
The effect of Zr and O incorporation on the structure and properties of TiC(N) coatings deposited by DC magnetron sputtering of composite TiC
0.5
+
xZrO
2 (
x
=
10 and 20
wt.%) and (Ti,Zr)C
0.5
+
...10%ZrO
2 targets in an argon atmosphere or reactively in a gaseous mixture of Ar
+
N
2 is presented. The structure, elemental and phase composition of the coatings were studied by means of X-ray diffraction, scanning electron microscopy, and glow discharge optical emission spectroscopy. The coatings were characterized in terms of their hardness, elastic modulus, and elastic recovery using the load–depth-sensing nanoindentation method. Tribological properties were investigated using ball-on-disk tests against cemented carbide at 25
°C and alumina in the temperature range of 25–500
°C. To evaluate the oxidation resistance, the coatings were annealed in air at 400, 550, and 600
°C for 1
h. The obtained results show that the TiZrCO(N) coatings exhibit a peak hardness versus nitrogen partial pressure. The coatings with maximum hardness tested at room temperature against WC
+
Co and Al
2O
3 counterparts showed low friction coefficients below 0.25. At higher temperatures 300–500
°C, the friction coefficient against an Al
2O
3 ball was recorded to be 0.6. The tribological tests of the coatings demonstrated their high wear resistance at moderate temperatures 25–300
°C (wear rate,
k
~
10
−
6
mm
3N
−
1
m
−
1
). Moreover, the coatings with high Zr content were the most wear resistant. The oxidation resistance of the Zr-doped TiCON coatings was not as high as expected and restricted by 600
°C. The combination of high hardness about 40
GPa with low friction coefficient and superior wear resistance makes the TiZrCON coatings promising candidates for various dry tribological applications.
► Hard TiZrCON coatings for tribological applications up to 600
°C. ► Alloying with Zr enhances mechanical and tribological properties of TiCON coatings. ► TiZrCO(N) coatings exhibit a peak hardness versus nitrogen partial pressure. ► TiZrCON coatings with high Zr content are the most wear resistant at 25
−
300
°C. ► Zr-doped TiCON coatings show good oxidation resistance up to 600
°C.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
Current article includes an analysis of interviewing in sport psychology, an observing of modern scientific interview protocols, a description of interview cases in private practice and research; ...also there is a discussion about efficiency and limitations of interview method in the article. Approaches to interviewing as the main and auxiliary method are discussed in details. The objective of the article is to show how an interview can reveal interesting biographical facts, personality traits, the installation of an athlete, to reflect his inner world, and to form working in the field of sport psychology professionals and students view on the advantages and opportunities an interview in the work of sports psychologist (research and practice). This method can be regarded as a tool of knowledge, but is also used as a preliminary interview before long-term or short-term therapeutic work. Clinical conversation as one of the options the interview are invited to the discussion; the article provides a common protocol for clinical interviews in the sport.
В статье анализируется применение интервью в спортивной психологии, рассматриваются современные протоколы интервью, описываются отдельные кейсы интервьюирования в практических и научных целях, обсуждается результативность, достоинства и ограничения метода. Детально рассматриваются подходы к интервью как основному и вспомогательному методу. Задача статьи – показать, как интервью может выявить интересные биографические факты, личностные черты, установки спортсмена, отразить его внутренний мир, и сформировать у работающих в области спортивной психологии специалистов и учащихся представление о достоинствах и возможностях интервью в работе спортивного психолога (исследователя и практика). Этот метод может расцениваться как инструмент познания, но также используется в качестве предварительного собеседования перед длительной или кратковременной терапевтической работой. Клиническая беседа как один из вариантов интервью предлагается к обсуждению; в статье приводится распространенный в мире протокол клинической беседы в спорте.
The preparation of hard coatings with low friction coefficient over a wide temperature range is still a challenge for the tribological community. The development of new nanocomposite materials ...consisting of different metal-ceramic phases, each of which exhibiting self-lubricating characteristics at different temperatures, may help to solve this problem. We report on the structure and tribological properties of MoCN-Ag coatings deposited by magnetron co-sputtering of Mo and C (graphite) targets and simultaneous sputtering of an Ag target either in pure nitrogen or in a gaseous mixture of Ar+N2. The structure and elemental composition of the coatings were studied by means of X-ray diffraction, scanning and transmission electron microscopy, X-ray photoelectron spectroscopy, energy dispersive spectroscopy, Raman spectroscopy, and glow discharge optical emission spectroscopy. The tribological properties of the coatings against an Al2O3 ball were investigated first at discrete temperatures of 25, 500, and 700 degree C, and then during continuous heating in the temperature range of 25-700 degree C. The coating structure and their respective wear tracks were also examined to elucidate their phase transformations during heat treatments. The lowest friction coefficients (<0.4) were observed in the temperature ranges of 25-100 degree C and 400-700 degree C and can be explained by the presence of a free amorphous carbon phase, which served as a lubricant at low temperatures, and by a positive role of silver and two phases forming at elevated temperatures, molybdenum oxide and silver molybdate, which provided lubrication above 400 degree C. In the temperature range between 100 and 400 degree C, the friction coefficient was relatively high. This problem is to be addressed in future works.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
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