354 research outputs found
IV научная конференция «Политические проблемы международных систем и глобального развития»
No full textНаукова конференція для молодих викладачів та магістрів, які навчають-
ся за спеціальністю 291 «Міжнародні відносини, суспільні комунікації та
регіональні студії», за участю декана факультету міжнародних відносин,
політології та соціології В. В. Глєбова, завідувача кафедри міжнародних
відносин О. І. Брусиловської, викладачів та гостей університету, відбулася
18 травня 2021 р. на ФМВПС ОНУ імені І. І. Мечникова. Серед питань,
що розглядалися на конференції, чільне місце зайняв аналіз теорії між-
народних відносин (Бєлінська Д., Бурганова В., Гордієнко С., Мусієнко А.,
Погребняк М., Шевченко Ю.), зовнішньої політики держав (Навасардян Д.,
Новацька О., Пальонова Г., Полякова Є., Зазалітінова В., Уфує К.), сис-
темної трансформації посткомуністичних та постколоніальних країн (Про-
хорова В., Елкхаїр А.).Scientific conference for young teachers and masters who study in the specialty 291
International Relations, Public Communications and Regional Studies, with the participation
of the Dean of the Faculty of International Relations, Political Science and Sociology
V. V. Glebov, Head of the Department of International Relations O. I. Brusylovska,
lectors and guests of the University, took place on May 18, 2021 at the FIRPS
ONU named after I. I. Mechnikov. Among the issues considered at the conference
were: the analysis of the theory of international relations (Belinska D., Burganova V.,
Gordienko S., Musienko A., Pogrebnyak M., Shevchenko Y.), foreign policy of the
states (Houphouet L., Navasardian D., Novatska O., Palyonova G., Polyakova E., Zazalitinova
V.), systemic transformation of post-communist and post-colonial countries
(Prokhorova V., Elkhair A.).Scientific conference for young teachers and masters who study in the specialty 291
International Relations, Public Communications and Regional Studies, with the participation
of the Dean of the Faculty of International Relations, Political Science and Sociology
V. V. Glebov, Head of the Department of International Relations O. I. Brusylovska,
lectors and guests of the University, took place on May 18, 2021 at the FIRPS
ONU named after I. I. Mechnikov. Among the issues considered at the conference
were: the analysis of the theory of international relations (Belinska D., Burganova V.,
Gordienko S., Musienko A., Pogrebnyak M., Shevchenko Y.), foreign policy of the
states (Houphouet L., Navasardian D., Novatska O., Palyonova G., Polyakova E., Zazalitinova
V.), systemic transformation of post-communist and post-colonial countries
(Prokhorova V., Elkhair A.)
Radiation Damage Studies of Silicon Photomultipliers
No full textWe report on the measurement of the radiation hardness of silicon photomultipliers (SiPMs) manufactured by Fondazione Bruno Kessler in Italy (1 mm and 6.2 mm), Center of Perspective Technology and Apparatus in Russia (1 mm and 4.4 mm), and Hamamatsu Corporation in Japan (1 mm). The SiPMs were irradiated using a beam of 212 MeV protons at Massachusetts General Hospital, receiving fluences of up to protons per cm with the SiPMs at operating voltage. Leakage currents were read continuously during the irradiation. The delivery of the protons was paused periodically to record scope traces in response to calibrated light pulses to monitor the gains, photon detection efficiencies, and dark counts of the SiPMs. The leakage current and dark noise are found to increase with fluence. Te leakage current is found to be proportional to the mean square deviation of the noise distribution, indicating the dark counts are due to increased random individual pixel activation, while SiPMs remain fully functional as photon detectors. The SiPMs are found to anneal at room temperature with a reduction in the leakage current by a factor of 2 in about 100 days.We report on the measurement of the radiation hardness of silicon photomultipliers (SiPMs) manufactured by Fondazione Bruno Kessler in Italy (1 mm and 6.2 mm), Center of Perspective Technology and Apparatus in Russia (1 mm and 4.4 mm), and Hamamatsu Corporation in Japan (1 mm). The SiPMs were irradiated using a beam of 212 MeV protons at Massachusetts General Hospital, receiving fluences of up to protons per cm with the SiPMs at operating voltage. Leakage currents were read continuously during the irradiation. The delivery of the protons was paused periodically to record scope traces in response to calibrated light pulses to monitor the gains, photon detection efficiencies, and dark counts of the SiPMs. The leakage current and dark noise are found to increase with fluence. Te leakage current is found to be proportional to the mean square deviation of the noise distribution, indicating the dark counts are due to increased random individual pixel activation, while SiPMs remain fully functional as photon detectors. The SiPMs are found to anneal at room temperature with a reduction in the leakage current by a factor of 2 in about 100 days
A method to control bit rate while compressing predicted frames
No full textA method to control bit rate while compressing video data subject to approaching maximal quality of the image has been proposed. We use the bisection method to find optimal parameters of the compressor. This method allows us to control the accuracy of the optimal values to find without doing the exhaustive search. Such an approach reduces the frame processing time for a video group
Author Correction: A portrait of the Higgs boson by the CMS experiment ten years after the discovery
No full textIn the version of this article initially published, CMS Collaboration author names, affiliations and acknowledgements were omitted and have now been included in the HTML and PDF versions of the articl
Direct Observation of PI-2(1680) in the RHO-0-PI-System
No full textIn the reaction of x- dissociation into a p+p-z'- system on a Cu nucleus, a clear enhancement in the poz- effective-mass distribution has been observed in the 1;2( 1680) region. Partial-wave analysis shows that this enhancement is due to the P-wave and has a resonant nature. Coherent and incoherent cross-sections for this enhancement have been measured
Effect of the Be and Y on the martensite transformation parameters in TiNi compound
No full textTo our knowledge, the effect of Be and Y on the martensite transformation parameters in TiNi-based shape memory alloys was studied occasionally and mainly on a level of the technological additions. Recently, due to the development of non-conventional production technologies applied to the shape memory materials, both metals are found to be the appropriate canditates for production of the potential TiNi-based shape memory alloys in an initially amorphous structural state by means of the melt-spinning and injection casting techniques. First of all, the Be and Y attract attention due to satisfaction of the so-called "golden rules" known for the bulk amorphous alloy systems. We present the result of the experimental study regarding the systematic substitution of the main constituent elements Ti and Ni by Be and Y up to (2-10) at.%. In as-cast condition, all the Ti-Ni-Be and Ti-Ni-Y alloys undergo the dual B2 → R → B19' martensite transformation sequence, well resolved on the cooling run and often overlapping on the heating run. Both the TR and MS transformation temperatures smoothly decrease with the Be or Y content, the slope to be higher for substitution of the Ti than the Ni. The ternary TiNiBe and TiNiY meltspun ribbons produced in the standard technological condition are rather brittle and don't show a good metallic aspect. They are in the crystalline structural state and undergo the martensite transformation sequence similar to the bulk material but in the lower temperature range. The contribution of the chemical composition, microstructure and strain/stress field (caused by the difference in the atomic radii) to the martensite transformation temperatures is considered
Activation of spinal locomotor circuits in the decerebrated cat by spinal epidural and/or intraspinal electrical stimulation
No full textThe present study was designed to further compare the stepping-like movements generated via epidural (ES) and/or intraspinal (IS) stimulation. We examined the ability to generate stepping-like movements in response to ES and/or IS of spinal lumbar segments L1-L7 in decerebrate cats. ES (5-10 Hz) of the dorsal surface of the spinal cord at L3-L7 induced hindlimb stepping-like movements on a moving treadmill belt, but with no rhythmic activity in the forelimbs. IS (60 Hz) of the dorsolateral funiculus at L1-L3 (depth of 0.5-1.0 mm from the dorsal surface of the spinal cord) induced quadrupedal stepping-like movements. Forelimb movements appeared first, followed by stepping-like movements in the hindlimbs. ES and IS simultaneously enhanced the rhythmic performance of the hindlimbs more robustly than ES or IS alone. The differences in the stimulation parameters, site of stimulation, and motor outputs observed during ES vs. IS suggest that different neural mechanisms were activated to induce stepping-like movements. The effects of ES may be mediated more via dorsal structures in the lumbosacral region of the spinal cord, whereas the effects of IS may be mediated via more ventral propriospinal networks and/or brainstem locomotor areas. Furthermore, the more effective facilitation of the motor output during simultaneous ES and IS may reflect some convergence of pathways on the same interneuronal populations involved in the regulation of locomotion
Activation of spinal locomotor circuits in the decerebrated cat by spinal epidural and/or intraspinal electrical stimulation
No full textThe present study was designed to further compare the stepping-like movements generated via epidural (ES) and/or intraspinal (IS) stimulation. We examined the ability to generate stepping-like movements in response to ES and/or IS of spinal lumbar segments L1-L7 in decerebrate cats. ES (5-10 Hz) of the dorsal surface of the spinal cord at L3-L7 induced hindlimb stepping-like movements on a moving treadmill belt, but with no rhythmic activity in the forelimbs. IS (60 Hz) of the dorsolateral funiculus at L1-L3 (depth of 0.5-1.0 mm from the dorsal surface of the spinal cord) induced quadrupedal stepping-like movements. Forelimb movements appeared first, followed by stepping-like movements in the hindlimbs. ES and IS simultaneously enhanced the rhythmic performance of the hindlimbs more robustly than ES or IS alone. The differences in the stimulation parameters, site of stimulation, and motor outputs observed during ES vs. IS suggest that different neural mechanisms were activated to induce stepping-like movements. The effects of ES may be mediated more via dorsal structures in the lumbosacral region of the spinal cord, whereas the effects of IS may be mediated via more ventral propriospinal networks and/or brainstem locomotor areas. Furthermore, the more effective facilitation of the motor output during simultaneous ES and IS may reflect some convergence of pathways on the same interneuronal populations involved in the regulation of locomotion
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