Chemistry: Недавние поступления

  • Kinetic Axion f (R) Gravity Phase Space 
    Oikonomou, Vasilis K.; Fronimos, Fotis P.; Razina, Olga; Tsyba, Pyotr (Symmetry, 2023)
    In this work, we studied the phase space of f(R) gravity in the presence of a misalignment axion, including parity violating Chern–Simons terms. We construct the autonomous dynamical system by using appropriate dimensionless ...
  • Jusanin, a New Flavonoid from Artemisia commutata with an In Silico Inhibitory Potential against the SARS-CoV-2 Main Protease 
    Suleimen, Yerlan M.; Jose, Rani A.; Suleimen, Raigul N.; Arenz, Christoph; Ishmuratova, Margarita Y.; Toppet, Suzanne; Dehaen, Wim; Alsfouk, Bshra A.; Elkaeed, Eslam B.; Eissa, Ibrahim H.; Metwaly, Ahmed M. (Molecules, 2022)
    A new flavonoid, Jusanin, (1) has been isolated from the aerial parts of Artemisia commutata. The chemical structure of Jusanin has been elucidated using 1D, 2D NMR, and HR-Ms spectroscopic methods to be 5,20 ,40 -tr ...
  • Spinor Dynamics in Pristine and Mn2+ Doped CsPbBr3 NC: Role of Spin-Orbit Coupling in Ground and Excited State Dynamics 
    Forde, Aaron; Inerbaev, Talgat; Kilin, Dmitri (Journal of Physical Chemistry C, 2018-11)
    Fully inorganic lead halide perovskite nanocrystals (NCs) are of interest for optoelectronic and light-emitting devices because of their photoluminescence (PL) emission properties, which can be tuned/optimized by (I) surface ...
  • Isolation, Crystal Structure, and In Silico Aromatase Inhibition Activity of Ergosta-5, 22-dien-3β-ol from the Fungus Gyromitra esculenta 
    Suleimen, Yerlan Melsuly; Metwaly, Ahmed M.; Mostafa, Ahmad E.; Elkaeed, Eslam B.; Liu, Hong-Wei; Basnet, Buddha Bahadur; Suleimen, Raigul Nurbekkyzy; Ishmuratova, Margarita Yulayevna; Turdybekov, Koblandy Muboryakovich; Heske, Kristof Van (Journal of Chemistry, 2021)
    Ergosterol derivatives exhibited copious promising biological activities. +e fungus Gyromitra esculenta is widely distributed in Europe and North America. In order to examine the chemical properties of Gyromitra esculenta, ...
  • Isolation and In Silico SARS-CoV-2 Main Protease Inhibition Potential of Jusan Coumarin, a New Dicoumarin from Artemisia glauca 
    Suleimen, Yerlan M.; Jose, Rani A.; Suleimen, Raigul N.; Ishmuratova, Margarita Y.; Toppet, Suzanne; Dehaen, Wim; Alsfouk, Aisha A.; Elkaeed, Eslam B.; Eissa, Ibrahim H.; Metwaly, Ahmed M. (2022)
    A new dicoumarin, jusan coumarin, (1), has been isolated from Artemisia glauca aerial parts. The chemical structure of jusan coumarin was estimated, by 1D, 2D NMR as well as HR-Ms spectroscopic methods, to be ...
  • Isolation and in silico SARS-CoV-2 main protease inhibition potential of chrysoeriol from Chondrilla brevirostris Fisch. & C.A. Mey. 
    Jalmakhanbetova, R.I.; Suleimen, Ye.M.; Abe, N.; Oyama, M.; Metwaly, A.M.; Eissa, I.H.; Ishmuratova, M.Yu.; Ibatayev, Zh.A. (Bulletin of the Karaganda University Chemistry Series, 2022)
    The genus Chondrilla L. comprises 22 species on the CIS territory. 16 species of them grow in Kazakhstan. All species of the genus Chondrilla L. are rubber-bearing herbaceous plants that belong to the Asteraceae family. ...
  • Isolation and In Silico Anti-COVID-19 Main Protease (Mpro) Activities of Flavonoids and a Sesquiterpene Lactone from Artemisia sublessingiana 
    Jalmakhanbetova, Roza I.; Suleimen, Yerlan M.; Oyama, Masayoshi; Elkaeed, Eslam B.; Eissa, Ibrahim. H.; Suleimen, Raigul N.; Metwaly, Ahmed M.; Ishmuratova, Margarita Yu. (Journal of Chemistry, 2021)
    /e emergence of the COVID-19 pandemic declared the huge need of humanity for new and effective antiviral drugs. /e reported antimicrobial activities of Artemisia sublessingiana encouraged us to investigate the ethanol ...
  • Ion-Track Template Synthesis and Characterization of ZnSeO3 Nanocrystals 
    Dauletbekova, Alma; Akylbekova, Aiman; Sarsekhan, Gulnaz; Usseinov, Abay; Baimukhanov, Zein; Kozlovskiy, Artem; Vlasukova, Liudmila A.; Komarov, Fadey F.; Popov, Anatoli I.; Akylbekov, Abdirash T. (Crystals, 2022)
    сZnSeO3 nanocrystals with an orthorhombic structure were synthesized by electrochemical and chemical deposition into SiO2/Si ion-track template formed by 200 MeV Xe ion irradiation with the fluence of 107 ions/cm2 . ...
  • In Vitro and In Silico Cytotoxic and Antibacterial Activities of a Diterpene from Cousinia alata Schrenk 
    Zhanzhaxina, Almira; Suleimen, Yerlan; Metwaly, Ahmed M.; Eissa, Ibrahim H.; Elkaeed, Eslam B.; Suleimen, Raigul; Ishmuratova, Margarita; Akatan, Kydyrmolla; Luyten, Walter (Journal of Chemistry, 2021)
    A biologically guided isolation of secondary metabolites from Cousinia alata Schrenk wild plant growing in Akmola region, Kazakhstan, led to the isolation of the bioactive diterpene grindelic acid (1). Six flavonoids were ...
  • Investigation of Partition Function Transformation for the Potts Model into a Dichromatic Knot Polynomial 74 
    Kassenova, Tolkyn; Tsyba, Pyotr; Razina, Olga (Symmetry, 2024)
    This article examines quantum group symmetry using the Potts model. The transformation of the Potts model into a polynomial knot state on Kaufman square brackets is analyzed. It is shown how a dichromatic polynomial for ...
  • Intrinsic emissions and formation of electron-hole trapping centres in excited Li2 SO4 
    Nurakhmetov, Turlybek N. ;  Alibay, Temirulan T.; Tolekov, Doszhan A. ;  Shamiyeva, Raushan K.; Pazylbek, Sapargali ; Karoblis, Dovydas ;  Raudonis, Rimantas; Zarkov, Aleksej ; Kiuberis, Jonas ; Kareiva, Aivaras  (CHEMIJA, 2023)
    Vacuum ultraviolet and thermal activation spectroscopies were used to study the  nature of intrinsic emission and the  mechanisms of the  formation of electron and hole trapping centres in irradiated Li2 SO4 powders ...
  • Interpolymer Complexes Based on Cellulose Ethers: Application 
    Keldibekova, Raushan; Suleimenova, Symbat; Nurgozhina, Gulden; Kopishev, Eldar (Polymers, 2023)
    Interpolymer complexes based on cellulose ethers have gained significant interest in recent years due to their versatile applications. These complexes are formed by combining different polymers through non-covalent ...
  • Interdisciplinary Research to Advance Digital Imagery and Natural Compounds for Eco-Cleaning and for Preserving Textile Cultural Heritage 
    Ilies, Dorina Camelia; Zlatev, Zlatin; Ilies, Alexandru; Zharas, Berdenov; Pantea, Emilia; Hodor, Nicolaie; Indrie, Liliana; Turza, Alexandru; Taghiyari, Hamid R.; Caciora, Tudor; Costea, Monica; Safarov, Bahodiron; Lucian, Barbu-Tudoran (Sensors, 2022)
    The old fibers that make up heritage textiles displayed in museums are degraded by the aging process, environmental conditions (microclimates, particulate matter, pollutants, sunlight) and the action of microorganisms. ...
  • Integrable Kuralay Equations: Geometry, Solutions and Generalizations 
    Sagidullayeva, Zhanna; Nugmanova, Gulgassyl; Myrzakulov, Ratbay; Serikbayev, Nurzhan (Symmetry, 2022)
    In this paper, we study the Kuralay equations, namely the Kuralay-I equation (K-IE) and the Kuralay-II equation (K-IIE). The integrable motion of space curves induced by these equations is investigated. The gauge equivalence ...
  • Insight into What Is inside Swift Heavy Ion Latent Tracks in PET Film 
    Tuleushev, Adil Z.; Harrison, Fiona E.; Kozlovskiy, Artem L.; Zdorovets, Maxim V. (Polymers, 2023)
    We present here a novel experimental study of changes after contact electrification in the optical transmission spectra of samples of both pristine and irradiated PET film treated with Kr+15 ions of energy of 1.75 MeV ...
  • Influence of Space Charge During the Oxidation of Metal Surfaces 
    Mukhambetov, D. G.; Valladares, L. De Los Santos; Kargin, J. B.; Kozlovskiy, A. L. (Oxidation of Metals, 2018)
    In this work we present a model for the surface oxide film growth considering the influence of space charge. The space charge field Esp is assumed proportional to the charge of moving metal ions and electrons in the oxide ...
  • Inflation from the Symmetry of the Generalized Cosmological Model 
    Yerzhanov, Koblandy; Bauyrzhan, Gulnur; Altaibayeva, Aziza; Myrzakulov, Ratbay (Symmetry, 2021)
    It is shown that the inflationary model is the result of the symmetry of the generalized F(R, T, X, ϕ)-cosmological model using the Noether symmetry. It leads to a solution, a particular case of which is Starobinsky’s ...
  • Impregnating Compound for Cement-Concrete Road Pavement 
    Lukpanov, Rauan; Dyusembinov, Duman; Shakhmov, Zhanbolat; Tsygulov, Denis; Aibuldinov, Yelaman; Vatin, Nikolai Ivanovich (Crystals, 2022)
    The paper proposes an impregnation composition for cement concrete roads used as an ice-phobic coating. The composition has been made based on keratin-containing components derived from animal waste with the addition of ...
  • Glycoluril and Its Chemical Properties 
    Ponomarenko, Oksana V.; Panshina, Svetlana Yu.; Bakibaev, Abdigali A.; Erkasov, Rahmetulla Sh.; Kenzhebaj, Madina S.; Montaeva, Anel' S. (Eurasian Journal of Chemistry, 2023)
    In the chemistry of heterocyclic compounds, bicyclic bisureas — glycolurils, have a special place. Glycolurils are used as a basis for the industrial production of substances that have found application in many areas of ...
  • General Slow-Roll Inflation in f (R) Gravity under the Palatini Approach 
    Bekov, Sabit; Myrzakulov, Kairat; Myrzakulov, Ratbay; Gómez, Diego Sáez-Chillón (Symmetry, 2020)
    Slow-roll inflation is analyzed in the context of modified gravity within the Palatini formalism. As shown in the literature, inflation in this framework requires the presence of non-traceless matter; otherwise, it does ...

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