Browsing Articles by Title

Now showing items 121-140 of 166

Radiation-induced damage and evolution of defects in Mo

Starikov, S. V.; Insepov, Z.; Rest, J.; Kuksin, A. Y.; Norman, G. E.; Stegailov, V. V.; Yanilkin, A. V. (Physical Review B, 2011)

The formation of defects in bcc Mo lattice as a result of 50-keV Xe bombardment is studied via atomistic simulation with an interatomic potential developed using the force-matching ab initio based approach. The defect ...
Recent progress on perovskite materials in photovoltaic and water splitting applications

Moniruddin, Md; Ilyassov, Baurzhan; Zhao, Xiao; Smith, Eric; Serikov, Timur; Ibrayev, Niyazbek; Asmatulu, Ramazan; Nuraje, Nurxat (Materials Today: Proceedings, 2017-11-14)

Abstract Both inorganic and hybrid (organo-inorganic) perovskite materials are potential candidates as photocatalysts for use in both photovoltaic (PV) and photocatalytic water splitting applications. Currently, research ...
Red blood cell ghosts as promising drug carriers to target wound infections

Berikkhanova, Kulzhan; Omarbaev, Rustam; Gulyayev, Alexandr; Shulgau, Zarina; Ibrasheva, Dilbar; Adilgozhina, Gulsim; Sergazy, Shynggys; Zhumadilov, Zhaxybay; Askarova, Sholpan (Medical Engineering & Physics, 2016-09-01)

Abstract Autologous red blood cell ghosts (RBC ghosts) can carry cytokines to the sites of inflammation. The targeting moiety of the RBC ghosts is associated with the nature of purulent inflammation, where the erythrocytes ...
Regarding the impact of Kazakh phonetic transcription on the performance of automatic speech recognition systems

Karabalayeva, Muslima; Yessenbayev, Zhandos; Kozhirbayev, Zhanibek (Nazarbayev University, National Laboratory Astana., 2017-10-21)

Over the past decades automatic speech recognition has made remarkable advances, in both theoretical and practical aspects. Evolution of research in this field has been proceeding from the recognition of individual sounds ...
Requirements for advanced simulation of nuclear reactor and chemicalseparation plants

Palmiotti, G.; Cahalan, J.; Pfeiffer, P.; Sofu, T.; Taiwo, T.; Wei, T.; Willamson, M. (Argonne National Laboratory, 2006)

This report presents requirements for advanced simulation of nuclear reactor and chemical processing plants that are of interest to the Global Nuclear Energy Partnership (GNEP) initiative. Justification for advanced ...
Retinal Targets ALDH Positive Cancer Stem Cell and Alters the Phenotype of Highly Metastatic Osteosarcoma Cells

Mu, Xiaodong; Mektepbayeva, Damel; Patel, Stuti; Mahjoub, Adel; Huard, Johnny; Weiss, Kurt (Sarcoma, 2015)

Aldehyde dehydrogenase (ALDH) is a cancer stem cell marker. Retinoic acid has antitumor properties, including the induction of apoptosis and inhibition of proliferation. Retinal, the precursor of retinoic acid, can be ...
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, ...