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  • REVEALING ELECTROMIGRATION ON DIELECTRICS AND METALS THROUGH THE STEP-BUNCHING INSTABILITY 
    Usov, Victor; Ó Coileáin, Cormac; Chaika, Alexander N.; Bozhko, Sergey I.; Semenov, Valery N.; Krasnikov, Sergey; Toktarbaiuly, Olzat; Stoyanov, Stoyan; Shvets, Igor V. (PHYSICAL REVIEW B, 2020)
    Electromigration, due to its technological and scientific significance, has been a subject of extensive studies for many years. We present evidence of electromigration in dielectric materials, namely C -plane sapphire, ...
  • SCREENING A COLLECTION OF LOCAL AND FOREIGN VARIETIES OF SOLANUM LYCOPERSICUM L. IN KAZAKHSTAN FOR GENETIC MARKERS OF RESISTANCE AGAINST THREE TOMATO VIRUSES 
    Pozharskiy, Alexandr; Kostyukova, Valeriya; Taskuzhina, Aisha; Nizamdinova, Gulnaz; Kisselyova, Nina; Kalendar, Ruslan; Karimov, Nurlybek; Gritsenko, Dilyara (Heliyon, 2022)
    The tomato is one of the most important vegetable crops. The successful development of tomato cultures in Kazakhstan depends on the implementation of intensive agricultural methods, including breeding and selecting for ...
  • Secondary electron yield of emissive materials for large-area micro-channel plate detectors: surface composition and film thickness dependencies 
    Jokela, S. J.; Veryovkin, I. V.; Zinovev, A. V.; Elam, J. W.; Mane, A. U.; Peng, Q.; Insepov, Z. (Physics Procedia, 2012)
    The ongoing development of Atomic Layer Deposition (ALD) enables the use of relatively inexpensive and robust borosilicate micro-channel substrates for use as Micro-Channel Plates (MCPs). The surfaces of the channels in ...
  • Selection, characterization, and application of DNA aptamers for detection of Mycobacterium tuberculosis secreted protein MPT64 
    Sypabekova, Marzhan; Bekmurzayeva, Aliya; Wang, Ronghui; Li, Yanbin; Nogues, Claude; Kanayeva, Damira (Tuberculosis, 2017-05-01)
    Abstract Rapid detection of Mycobacterium tuberculosis (Mtb), an etiological agent of tuberculosis (TB), is important for global control of this disease. Aptamers have emerged as a potential rival for antibodies in ...
  • Sheath parameters for non-Debye plasmas: Simulations and arc damage 
    Morozov, I. V.; Norman, G. E.; Insepov, Z.; Norem, J. (Physical Review Special Topics-Accelerators and Beams, 2012)
    This paper describes the surface environment of the dense plasma arcs that damage rf accelerators, tokamaks, and other high gradient structures. We simulate the dense, nonideal plasma sheath near a metallic surface using ...
  • Simulation of Ion Irradiation of Nuclear Materials and Comparison with Experiment 
    Insepov, Z.; Kuksin, A.; Rest, J.; Starikov, S.; Yanilkin, A.; Yacout, A. M.; Yun, D. (arXiv preprint arXiv:1203.0327, 2012)
    Radiation defects generated in various nuclear materials such as Mo and CeO2, used as a surrogate material for UO2, formed by sub-MeV Xe and Kr ion implantations were studied via TRIM and MD codes. Calculated results were ...
  • Spin-dependent transport properties of Fe3O4/MoS2/Fe3O4 junctions 
    Wu, Han-Chun; Ó Coileáin, Cormac; Abid, Mourad; Mauit, Ozhet; Syrlybekov, Askar; Khalid, Abbas; Xu, Hongjun; Gatensby, Riley; Wang, Jing Jing; Liu, Huajun; Yang, Li; Duesberg, Georg S.; Zhang, Hong-Zhou; Abid, Mohamed; Shvets, Igor V. (Scientific Reports, 2015-11-02)
    Magnetite is a half-metal with a high Curie temperature of 858 K, making it a promising candidate for magnetic tunnel junctions (MTJs). Yet, initial efforts to exploit its half metallic nature in Fe3O4/ MgO/Fe3O4 MTJ ...
  • Spoken term detection for Kazakh language 
    Kozhirbayev, Zhanibek; Karabalayeva, Muslima; Yessenbayev, Zhandos (The 4-th International Conference on Computer Processing of Turkic Languages, 2016-08-21)
    The paper presents a spoken term detection system for Kazakh language in which significant improvements are obtained through modifying speech-to-text process used for generating word- based lattices. These lattices are ...
  • Spray-Pyrolysis Preparation of Li4Ti5O12/Si Composites for Lithium-Ion Batteries 
    Terechshenko, A; Sanbayeva, Ayana; Babaa, M.R.; Nurpeissova, A.; Bakenov, Zhumabay (National Laboratory Astana, 2019-02-20)
    This paper introduces the novel anode material which is Li4Ti5O12/Si prepared by gas-stated method, mainly spray-pyrolysis technique. The literature review performed in this paper revealed two main components which can be ...
  • SPUTNIK-V REACTOGENICITY AND IMMUNOGENICITY IN THE BLOOD AND MUCOSA: A PROSPECTIVE COHORT STUDY 
    Yegorov, Sergey; Kadyrova, Irina; Negmetzhanov, Baurzhan; Kolesnikova, Yevgeniya; Kolesnichenko, Svetlana; Korshukov, Ilya; Baiken, Yeldar; Matkarimov, Bakhyt; Miller, Matthew S. (Scientific Reports, 2022)
    Sputnik-V (Gam-COVID-Vac) is a heterologous, recombinant adenoviral (rAdv) vector-based, COVID- 19 vaccine now used in > 70 countries. Yet there is a shortage of data on this vaccine’s performance in diverse populations. ...
  • Step bunching with both directions of the current: Vicinal W(110) surfaces versus atomistic-scale model 
    Toktarbaiuly, Olzat; Usov, Victor; Ó Coileáin, Cormac; Siewierska, Katarzyna; Krasnikov, Sergey; Norton, Emma; Bozhko, Sergey I.; Semenov, Valery N.; Chaika, Alexander N.; Murphy, Barry E.; Lübben, Olaf; Krzy˙zewski, Filip; Załuska-Kotur, Magdalena A.; Krasteva, Anna; Popova, Hristina; Tonchev, Vesselin; Shvets, Igor V. (Physical review B, 2018-01)
    We report the observation of bunching of monoatomic steps on vicinal W(110) surfaces induced by step-up or step-down currents across the steps. Measurements reveal that the size-scaling exponent γ , connecting the maximal ...
  • STRONG RESONANCES AT HIGH EXCITATION ENERGY IN 17O+ALPHA RESONANCE SCATTERING 
    Nauruzbayev, D. K.; Nurmukhanbetova, A. K.; Goldberg, V. Z.; Cognata, M. La; Pietro, A. Di; Figuera, P.; Cherubini, S.; Gulino, M.; Lamia, L.; Pizzone, R. G.; Spartà, R.; Tumino, A.; Serikov, A.; Gazeeva, E. M. (arxiv, 2019)
    The Thick Target Inverse Kinematic (TTIK) approach was used to measure excitation functions for the elastic 17O (α, α) scattering at the initial 17O beam energy of 54.4 MeV. We observed strong peaks corresponding to ...
  • Structural comparison of AP endonucleases from the exonuclease III family reveals new amino acid residues in human AP endonuclease 1 that are involved in incision of damaged DNA 
    Redrejo-Rodríguez, Modesto; Vigouroux, Armelle; Mursalimov, Aibek; Grin, Inga; Alili, Doria; Koshenov, Zhanat; Akishev, Zhiger; Maksimenko, Andrei; Bissenbaev, Amangeldy K.; Matkarimov, Bakhyt T.; Saparbaev, Murat; Ishchenko, Alexander A.; Moréra, Solange (Biochimie, 2016-09-01)
    Abstract Oxidatively damaged DNA bases are substrates for two overlapping repair pathways: DNA glycosylase-initiated base excision repair (BER) and apurinic/apyrimidinic (AP) endonuclease-initiated nucleotide incision ...
  • THE STRUCTURAL DIVERSITY OF CACTA TRANSPOSONS IN GENOMES OF CHENOPODIUM (AMARANTHACEAE, CARYOPHYLLALES) SPECIES: SPECIFC TRAITS AND COMPARISON WITH THE SIMILAR ELEMENTS OF ANGIOSPERMS 
    Belyayev, Alexander; Josefová, Jiřina; Jandová, Michaela; Kalendar, Ruslan; Mahelka, Václav; Mandák, Bohumil; Krak, Karol (Mobile DNA, 2022)
    Background: CACTA transposable elements (TEs) comprise one of the most abundant superfamilies of Class 2 (cut and-paste) transposons. Over recent decades, CACTA elements were widely identifed in species from the plant, ...
  • STUDY OF GUT MICROBIOTA ALTERATIONS IN ALZHEIMER’S DEMENTIA PATIENTS FROM KAZAKHSTAN 
    Kaiyrlykyzy, Aiym; Kozhakhmetov, Samat; Babenko, Dmitriy; Zholdasbekova, Gulnaz; Alzhanova, Dinara; Olzhayev, Farkhad; Baibulatova, Aida; Kushugulova, Almagul R.; Askarova, Sholpan (Scientific Reports, 2022)
    We have investigated the diversity and composition of gut microbiotas isolated from AD (Alzheimer’s disease) patients (n = 41) and healthy seniors (n = 43) from Nur-Sultan city (Kazakhstan). The composition of the gut ...
  • Study of processes of nuclear reaction energy conversion into energy of optical radiation 
    Gordienko, Yu.N.; Batyrbekov, E.G.; Khasenov, M.U.; Zaurbekova, Zh.A.; Ponkratov, Yu.V.; Kulsartov, T.V.; Barsukov, N.I.; Tulubayev, Ye.Yu.; Mukanova, A.O. (Materials Today: Proceedings, 2017-01-01)
    Abstract This paper presents the preliminary results of the reactor experiments to study the spectral-luminescent properties of gaseous mixtures (based on He, Ne and Kr noble gases). The investigated gaseous mixtures were ...
  • SUPERHYDROPHOBIC SIO2/TRIMETHYLCHLOROSILANE COATING FOR SELF-CLEANING APPLICATION OF CONSTRUCTION MATERIALS 
    Kurbanova, Aliya; Myrzakhmetova, Nurbala; Akimbayeva, Nazgul; Kishibayev, Kazhmukhan; Nurbekova, Marzhan; Kanagat, Yernar; Tursynova, Arailym; Zhunussova, Tomiris; Seralin, Aidar; Kudaibergenova, Rabiga; Toktarbay, Zhexenbek; Toktarbaiuly, Olzat (Coatings, 2022)
    This study has demonstrated, for the first time, the potential application of coatings to protect bricks or architectures against detrimental atmospheric effects via a self-cleaning approach. In this research, a facile ...
  • Surface acoustic wave amplification by direct current-voltage supplied to graphene film 
    Insepov, Z.; Emelin, E.; Kononenko, O.; Roshchupkin, D. V.; Tnyshtykbayev, K. B.; Baigarin, K. A. (Applied Physics Letters, 2015)
    Using a high-resolution X-Ray diffraction measurement method, the surface acoustic waves (SAW) propagation in a graphene film on the surface of a Ca3TaGa3Si2O14 (CTGS) piezoelectric crystal was investigated, where an ...
  • Surface acoustic wave propagation in graphene film 
    Roshchupkin, D.; Ortega, L.; Zizak, I.; Plotitcyna, O.; Matveev, V.; Kononenko, O.; Insepov, Z. (Journal of Applied Physics, 2015)
    Surface acoustic wave (SAW) propagation in a graphene film on the surface of piezoelectric crystals was studied at the BESSY II synchrotron radiation source. Talbot effect enabled the visualization of the SAW propagation ...
  • Surface erosion and modification by highly charged ions 
    Insepov, Z.; Terasawa, M.; Takayama, K. (Physical Review A, 2008)
    Analyses were conducted of various models and mechanisms of highly charged ion HCI and swift-heavy ion energy transfer into a solid target, such as hollow atom formation, charge screening, neutralization, shock wave ...