Search Results - "Kovalchuk, O. O."

Improving experimental procedures for assessing electrical properties of advanced liquid crystal materials by Kovalchuk, O. V., Glushchenko, Anatoliy, Garbovskiy, Yuriy

“…Electrical measurements of liquid crystals are a standard part of their material characterisation. Typically, such measurements are carried out using a…”
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Biometric Analysis of Fish Remains from Palaeolake Boltysh (Ukraine) by Dubikovska, A., Kovalchuk, O.

“…The results of the study of the meristic and morphometric characters of complete and fragmentary skeletons of Notogoneus gracilis (Gonorynchidae) and Boltyshia…”
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Late Miocene Turtles of Grytsiv (western Ukraine) with Rodent Gnaw Marks on the Carapace Surface by Yanenko, V., Kovalchuk, O.

“…The paper describes a series of turtle remains from the Early Late Miocene of Grytsiv (Khmelnytskyi Oblast, Ukraine). This fossil assemblage was quite diverse…”
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Liquid crystal suspensions of carbon nanotubes assisted by organically modified Laponite nanoplatelets by Yaroshchuk, O., Tomylko, S., Kovalchuk, O., Lebovka, N.

“…We present a simple and effective approach for dispersion of carbon nanotubes (CNTs) into liquid crystals (LCs), suitable for a wide range of CNT…”
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Phylogeny and phylogeography of the roaches, genus Rutilus (Cyprinidae), at the Eastern part of its range as inferred from mtDNA analysis by Levin, B. A., Simonov, E. P., Ermakov, O. A., Levina, M. A., Interesova, E. A., Kovalchuk, O. M., Malinina, Y. A., Mamilov, N. S., Mustafayev, N. J., Pilin, D. V., Pozdeev, I. V., Prostakov, N. I., Roubenyan, H. R., Titov, S. V., Vekhov, D. A.

“…The genus Rutilus is a widely distributed lineage of cyprinids and ranges from West Europe to East Siberia. Although matrilineal phylogeny and phylogeography…”
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Intensity matters: brain, behaviour and the epigenome of prenatally stressed rats by Mychasiuk, R, Ilnytskyy, S, Kovalchuk, O, Kolb, B, Gibb, R

“…Abstract There is a general consensus that prenatal stress alters offspring brain development, however, the details are often inconsistent. Hypothesising that…”
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Dielectric and electrical properties of nematic liquid crystals 6CB doped with iron oxide nanoparticles. The combined effect of nanodopant concentration and cell thickness by Kovalchuk, O.V., Kovalchuk, T.M., Tomašovičová, N., Timko, M., Zakutanska, K., Miakota, D., Kopčanský, P., Shevchuk, O.F., Garbovskiy, Y.

“…[Display omitted] •Dielectric and electrical properties of nematic liquid crystals 6CB doped with iron oxide nanoparticles are reported.•The combined effect of…”
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Global transcriptome profiling of mild relapsing‐remitting versus primary progressive multiple sclerosis by Koch, M. W., Ilnytskyy, Y., Golubov, A., Metz, L. M., Yong, V. W., Kovalchuk, O.

“…Background and purpose Genetic research in multiple sclerosis (MS) mostly compares patients with MS with healthy controls, but does not differentiate between…”
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Early Miocene Ponyfishes (Acanthuriformes, Leiognathidae) of the Carpathian Basin by Kovalchuk, O. M., Świdnicka, E., Stefaniak, K.

“…The fossil record of ponyfishes (Leiognathidae) is documented by the presence of skeletal remains and otoliths in Europe, Africa and Asia. Here we describe in…”
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Radioactivity and Pb and Ni immobilization in SCM-bearing alkali-activated matrices by Alonso, M.M., Pasko, A., Gascó, C., Suarez, J.A., Kovalchuk, O., Krivenko, P., Puertas, F.

“…•Addition of Pb/Ni sulphates had no adverse effect on AAMs compressive strengths.•Pb is immobilized better in AAMs than in OPC pastes.•Red mud alkali activated…”
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Exploring dielectric properties and polarization relaxation processes in ionic liquid crystals with synthesized carbon and gold nanoparticles by Zhulai, D., Boichuk, N., Pustovyi, D., Kovalchuk, O., Garbovskiy, Y., Bugaychuk, S., Klimusheva, G., Mirnaya, T., Vitusevich, S.

“…The main goal is to study the structural and dielectric characteristics of advanced composite materials based on ionic metal alkanoates with various types of…”
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Irradiation induces DNA damage and modulates epigenetic effectors in distant bystander tissue in vivo by KOTURBASH, I, RUGO, R. E, HENDRICKS, C. A, LOREE, J, THIBAULT, B, KUTANZI, K, POGRIBNY, I, YANCH, J. C, ENGELWARD, B. P, KOVALCHUK, O

“…Irradiated cells induce chromosomal instability in unirradiated bystander cells in vitro. Although bystander effects are thought to be linked to…”
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Validity and reliability of the Russian version of the revised Amyotrophic Lateral Sclerosis Functional Rating Scale (ALSFRS-R) by Brylev, Lev, Demeshonok, V. S., Ataulina, A. I., Kovalchuk, M. O., Druzhinin, D. S., Guekht, A. B.

“…Objective The aim of this study is to elaborate a valid and reliable Russian version of the ALSFRS-R. Methods Russian adaptation of the ALSFRS-R was applied…”
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Influence of cation substitution on dielectric properties and electric conductivity of 6CB liquid crystal with Me7GeS5I (me = Ag, Cu) superionic nanoparticles by Studenyak, I. P., Kovalchuk, O. V., Pogodin, A. I., Poberezhets, S. I., Studenyak, V. I., Poberezhets, I. I., Lackova, V., Kopčanský, P., Timko, M.

“…The influence of Ag 7 GeS 5 I nanoparticles on dielectric properties of planar-oriented 6CB liquid crystal was investigated at 293 K within the frequency range…”
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Fish and Birds in the Trypillya Economy and Culture (5.4-2.7 kya BC): Evidence from Ukraine by Kovalchuk, O., Gorobets, L.

“…The paper deals with the role of fish and birds in the Trypillya culture, which was one of the greatest Eneolithic cultures within Europe. Analysis of the…”
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Laser-Induced Luminescent Centers in Diamond: Influence of Exposure and Duration of Short Laser Pulses by Danilov, P. A., Kudryashov, S. I., Levchenko, A. O., Oleynichuk, E. A., Kovalchuk, O. E.

“…The optical properties of point luminescent centers formed in the volume IaA-type natural diamond under the action of ultrashort laser pulses in the visible…”
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Modelling the impact of environmental responsibility on the development of enterprises by Pinskaya, M, Meleshchenko, O, Kovalchuk, O, Karpenko, O, Kompanets, E

“…BACKGROUND AND OBJECTIVES: The requirements of stakeholders for the qualitative transformation of the approaches of industrial enterprises - environmental…”
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PROFESSOR CHERKASOV VIKTOR GAVRYLOVYCH (for the 70th birthday) by Kovalchuk, O. I., Dzevulska, I. V., Malikov, O. V.

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Comparing excitability at 37°C versus at 20°C: Differences between motor and sensory axons by Kovalchuk, Maria O., Franssen, Hessel, Van Schelven, Leonard J., Sleutjes, Boudewijn T. H. M.

“…ABSTRACT Introduction In some peripheral nervous system disorders, cold induces symptoms of muscle weakness without loss of sensation. To understand this…”
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Animal remains from Neolithic settlements of the Middle Dnieper area (Ukraine) by Kovalchuk, O., Gorobets, L., Veiber, A., Lukashov, D., Yanenko, V.

“…The paper deals with the role of different branches of economy in the life of Neolithic people in Eastern Europe (within the Middle Dnieper area). For this…”
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