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Showing 13 to 24 of 103 entries
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Spatially resolved measurements of mean spin-spin relaxation time constants.

Journal of magnetic resonance (San Diego, Calif. : 1997)

Nechifor RE, Romanenko K, Marica F, Balcom BJ.
PMID: 24361482
J Magn Reson. 2014 Feb;239:16-22. doi: 10.1016/j.jmr.2013.11.012. Epub 2013 Dec 03.

Magnetic Resonance measurements of the T2 distribution have become very common and they are a powerful way to probe microporous fluid bearing solids. While the structure of the T2 distribution, and changes in the structure, are often very informative,...

Performance and application of heavy ion nuclear microbeam facility at the Nuclear Physics Institute in Řež, Czech Republic.

The Review of scientific instruments

Romanenko O, Havranek V, Mackova A, Davidkova M, Cutroneo M, Ponomarev AG, Nagy G, Stammers J.
PMID: 30709223
Rev Sci Instrum. 2019 Jan;90(1):013701. doi: 10.1063/1.5070121.

The Tandetron Laboratory of the Nuclear Physics Institute of the Czech Academy of Sciences is equipped with five beam lines associated with a 3 MV tandem electrostatic accelerator model 4130 MC from High Voltage Engineering Europa B.V. This accelerator...

Understanding Quality Factor Degradation in Superconducting Niobium Cavities at Low Microwave Field Amplitudes.

Physical review letters

Romanenko A, Schuster DI.
PMID: 29328733
Phys Rev Lett. 2017 Dec 29;119(26):264801. doi: 10.1103/PhysRevLett.119.264801. Epub 2017 Dec 28.

In niobium superconducting radio frequency (SRF) cavities for particle acceleration, a decrease of the quality factor at lower fields-a so-called low field Q slope or LFQS-has been a long-standing unexplained effect. By extending the high Q measurement techniques to...

Knowledge Transfer Between Artificial Intelligence Systems.

Frontiers in neurorobotics

Tyukin IY, Gorban AN, Sofeykov KI, Romanenko I.
PMID: 30150929
Front Neurorobot. 2018 Aug 13;12:49. doi: 10.3389/fnbot.2018.00049. eCollection 2018.

We consider the fundamental question: how a legacy "student" Artificial Intelligent (AI) system could learn from a legacy "teacher" AI system or a human expert without re-training and, most importantly, without requiring significant computational resources. Here "learning" is broadly...

Simultaneous Introduction of Two Nitroxides in the Reaction: A New Approach to the Synthesis of Heterospin Complexes.

Inorganic chemistry

Ovcharenko V, Kuznetsova O, Fursova E, Letyagin G, Romanenko G, Bogomyakov A, Zueva E.
PMID: 29131644
Inorg Chem. 2017 Dec 04;56(23):14567-14576. doi: 10.1021/acs.inorgchem.7b02308. Epub 2017 Nov 13.

A new approach to the synthesis of multispin compounds has been developed, namely, the simultaneous introduction of two different stable nitroxides (nitronyl nitroxide and imino nitroxide) in a reaction with a metal ion. An important characteristic of the new...

Multifrequency Nuclear Magnetic Resonance as an Efficient Tool To Investigate Heterospin Complexes in Solutions.

The journal of physical chemistry. A

Fishman NN, Lukzen NN, Ivanov KL, Edeleva MV, Fokin SV, Romanenko GV, Ovcharenko VI.
PMID: 31986040
J Phys Chem A. 2020 Feb 20;124(7):1343-1352. doi: 10.1021/acs.jpca.9b11104. Epub 2020 Feb 10.

We report a multifrequency nuclear magnetic resonance (NMR) study of heterospin complexes [Eu(SQ)

Distortion-free inside-out imaging for rapid diagnostics of rechargeable Li-ion cells.

Proceedings of the National Academy of Sciences of the United States of America

Romanenko K, Jerschow A.
PMID: 31471492
Proc Natl Acad Sci U S A. 2019 Sep 17;116(38):18783-18789. doi: 10.1073/pnas.1906976116. Epub 2019 Aug 30.

Safety risks associated with modern high energy-dense rechargeable cells highlight the need for advanced battery screening technologies. A common rechargeable cell exposed to a uniform magnetic field creates a characteristic field perturbation due to the inherent magnetism of electrochemical...

Phytochemical and Psychotropic Research of Motherwort (.

Plants (Basel, Switzerland)

Koshovyi O, Raal A, Kireyev I, Tryshchuk N, Ilina T, Romanenko Y, Kovalenko SM, Bunyatyan N.
PMID: 33503956
Plants (Basel). 2021 Jan 25;10(2). doi: 10.3390/plants10020230.

The prospect of creating a new medicine with psychotropic activity is shown as a result of studying the chemical composition and pharmacological activity of modified dry extracts of motherwort (

MODIFICATION OF THE TUMOR/INDUCED BYSTANDER EFFECT BY IRRADIATION UNDER COCULTIVATION OF LYMPHOCYTES FROM PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA AND LYMPHOCYTES FROM HEALTHY DONORS.

Problemy radiatsiinoi medytsyny ta radiobiolohii

Кurinnyi D, Rushkovsky S, Demchenko O, Romanenko M, Liashchenko T, Pilinska M.
PMID: 34965552
Probl Radiac Med Radiobiol. 2021 Dec;26:248-259. doi: 10.33145/2304-8336-2021-26-248-259.

OBJECTIVE: Study the tumor-induced bystander effect of blood cells from chronic lymphocytic leukemia (CLL)patients on non-transformed bystander cells (peripheral blood lymphocytes (PBL) of conditionally healthy individ-uals) and the possibility of its modification after the impact of ionizing radiation.MATERIALS AND...

Pt(II) and Pd(II) complexes with beta-alanine.

Bioinorganic chemistry and applications

Krylova LF, Kovtunova LM, Romanenko GV.
PMID: 18528519
Bioinorg Chem Appl. 2008;983725. doi: 10.1155/2008/983725.

A sequence of stages in the syntheses of isomeric bisamino acid complexes of Pt(II) with beta-aminopropionic acid (beta-alanine = beta-AlaH) has been studied by the (195)Pt NMR spectroscopy. The techniques have been developed of the synthesis of the cis-...

Membrane-Based .

Analytical chemistry

Romanenko A, Kalas B, Hermann P, Hakkel O, Illés L, Fried M, Fürjes P, Gyulai G, Petrik P.
PMID: 33315391
Anal Chem. 2021 Jan 19;93(2):981-991. doi: 10.1021/acs.analchem.0c03763. Epub 2020 Dec 14.

Mid-infrared (IR) ellipsometry of thin films and molecule layers at solid-liquid interfaces has been a challenge because of the absorption of light in water. It has been usually overcome by using configurations utilizing illumination through the solid substrate. However,...

Identification of beryllium fluoride complexes in mechanically distorted gels using quadrupolar split .

Physical chemistry chemical physics : PCCP

Romanenko K, Elliott SJ, Shubin AA, Kuchel PW.
PMID: 34337629
Phys Chem Chem Phys. 2021 Aug 12;23(31):16932-16941. doi: 10.1039/d1cp02515e.

The uniformly anisotropic media afforded by hydrogels are being increasingly exploited in analytical (structure elucidation) nuclear magnetic resonance (NMR) spectroscopy, and in studies of mechanosensitive biophysical and biochemical properties of living cells. The 9Be NMR parameters of beryllium fluoride...

Showing 13 to 24 of 103 entries