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  1. Article ; Online: In Vitro Multiplication and NMR Fingerprinting of Rare Veronica caucasica M. Bieb

    Desislava I. Mantovska / Miroslava K. Zhiponova / Milen I. Georgiev / Tsvetinka Grozdanova / Dessislava Gerginova / Kalina Alipieva / Svetlana Simova / Milena Popova / Veneta M. Kapchina-Toteva / Zhenya P. Yordanova

    Molecules, Vol 26, Iss 5888, p

    2021  Volume 5888

    Abstract: Micropropagation of rare Veronica caucasica M. Bieb. was achieved by successful in vitro ...

    Abstract Micropropagation of rare Veronica caucasica M. Bieb. was achieved by successful in vitro cultivation of mono-nodal segments on MS medium supplemented with 1.0 mg L –1 6-benzylaminopurine (BA) and then transferring the regenerated plants on hormone free basal MS medium for root development. In vitro multiplicated plants were successively acclimated in a growth chamber and a greenhouse with 92% survival. The number of plastid pigments and the total phenolics content in in vitro cultivated and ex vitro adapted plants were unchanged, and no accumulation of reactive oxygen species (ROS) was detected by staining with 3-3′-diaminobenzidine (DAB) and 2′,7′-dichlorofluorescein diacetate (DCF-DA). Nuclear Magnetic Resonance (NMR) fingerprinting allowed for the identification of the major alterations in metabolome of V. caucasica plants during the process of ex situ conservation. Iridoid glucosides such as verproside, aucubin and catalpol were characteristic for in vitro cultivated plants, while in ex vitro acclimated plants phenolic acid–protocatechuic acid and caffeic acid appeared dominant. The successful initiation of in vitro and ex vitro cultures is an alternative biotechnological approach for the preservation of V. caucasica and would allow for further studies of the biosynthetic potential of the species and the selection of lines with a high content of pharmaceutically valuable molecules and nutraceuticals.
    Keywords Plantaginaceae ; in vitro cultivation ; cytokinin ; ROS ; phenolic acids ; iridoid glycosides ; Organic chemistry ; QD241-441
    Subject code 580
    Language English
    Publishing date 2021-09-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Genesis and Properties of MOx/CNTs (M = Ce, Cu, Mo) Catalysts for Aerobic Oxidative Desulfurization of a Model Diesel Fuel

    Е.V. Matus / S.A. Yashnik / A.V. Salnikov / L.M. Khitsova / A.N. Popova / A.P. Nikitin / S.A. Sozinov / Z.R. Ismagilov

    Eurasian Chemico-Technological Journal, Vol 23, Iss

    2021  Volume 4

    Abstract: Aerobic oxidative desulfurization of a model diesel fuel over MOx/CNTs catalysts (M = Ce, Cu, Mo ... of the carbon matrix of support increases in the next row of M: Mo < Ce < Cu, which is accompanied ... conversion of dibenzothiophene increased in the next row of M: Се < Сu < Мо. It was found that at 150 °C over ...

    Abstract Aerobic oxidative desulfurization of a model diesel fuel over MOx/CNTs catalysts (M = Ce, Cu, Mo) was studied to develop innovative technology for cleaning motor fuels to EURO-5 standard. It was shown that the thermal stability of catalysts improves in the following order of metal Сu < Сe < Мо. The disordering of the carbon matrix of support increases in the next row of M: Mo < Ce < Cu, which is accompanied by an increase in the specific surface area of the samples (40 → 105 m2/g). The forms of stabilization of the active component (CeO2, CuO/Cu2O/ Cu, or MoO3/MoO2) were revealed, indicating a partial reduction of the metal cations during the thermal decomposition of copper and molybdenum precursor compounds deposited on CNTs. In oxidative desulfurization of a model diesel fuel over MOx/CNTs catalysts at 150 °C the total conversion of dibenzothiophene increased in the next row of M: Се < Сu < Мо. It was found that at 150 °C over the optimum MoOx/CNTs catalyst the highest dibenzothiophene conversion 95–99% is observed. It was assumed that the high activity of MoOx/CNTs is associated with both the oxidizing ability and the tendency of MoOx to chemosorption of sulfur compounds.
    Keywords metal-carbon catalyst ; dibenzothiophene ; diesel fuel ; oxidative desulfurization ; Chemistry ; QD1-999
    Subject code 660
    Language English
    Publishing date 2021-12-01T00:00:00Z
    Publisher al-Farabi Kazakh National University
    Document type Article ; Online
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  3. Article ; Online: Magnetoresistance of the high-pressure ferromagnetic phases (GaSb)2M (M=Cr,Mn).

    Pronin, A A / Kondrin, M V / Gizatullin, V R / Sazanova, O A / Lyapin, A G / Popova, S V / Ivanov, V Y

    Journal of physics. Condensed matter : an Institute of Physics journal

    2014  Volume 26, Issue 32, Page(s) 326001

    Abstract: For the first time magnetoresistance of the ferromagnetic high-pressure phases (GaSb)2M (M=Cr,Mn ...

    Abstract For the first time magnetoresistance of the ferromagnetic high-pressure phases (GaSb)2M (M=Cr,Mn) has been measured in a wide range of temperature and magnetic field. It was found that the magnetic field dependencies of resistivity of both systems contain several contributions, including relatively smaller s-d exchange (Yosida-type) components in low fields and a quadratic positive term (PMR) in the low temperature region. The magnitude of the predominated negative term (NMR), which can be attributed to the quantum corrections effects, demonstrates a peak in the vicinity of Curie temperature.
    Language English
    Publishing date 2014-08-13
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1472968-4
    ISSN 1361-648X ; 0953-8984
    ISSN (online) 1361-648X
    ISSN 0953-8984
    DOI 10.1088/0953-8984/26/28/326001
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  4. Article: Quality of meat in purebred pigs involved in crossbreeding schemes. I. Chemical composition and quality characteristics of m. Longissimus thoracis

    Nakev, Jivko / Popova, Teodora

    Bulgarian journal of agricultural science

    2020  Volume 26, Issue 4, Page(s) 894

    Document type Article
    ZDB-ID 1306706-0
    ISSN 1310-0351
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

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  5. Book ; Online: Sexual Consent

    Popova, Milena

    2019  

    Keywords Sexual abuse & harassment ; Sexual consent ; rape culture ; sexual violence ; consent ; feminism ; sex ; bodily autonomy ; rape myths ; gender ; sexuality ; sexual orientation ; race ; religion ; disability ; intersectionality ; consent negotiation ; relationships ; unwanted sex ; sexual scripts ; identity ; marginalisation ; popular culture ; sex advice ; pornography ; romance ; sex education ; activism ; BDSM ; transformative justice ; #MeToo
    Size 1 electronic resource (216 pages)
    Publisher The MIT Press
    Publishing place Cambridge
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021291681
    ISBN 9780262537322 ; 026253732X
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  6. Article: Animal Science. Carcass Composition and Physicochemical Characteristics of M. Longissimus Dorsi and M. Semimembranosus in Pigs Crosses of Youna and Pietrain

    Marinova, P. / Ignatova, M. / Nakev, J. / Popova, T. / Todorova, M.

    Bulgarian journal of agricultural science

    2015  Volume 21, Issue 6, Page(s) 1272

    Document type Article
    ZDB-ID 1306706-0
    ISSN 1310-0351
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

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  7. Article ; Online: Self-Assembly and Magnetic Order of Bi-Molecular 2D Spin Lattices of M(II,III) Phthalocyanines on Au(111)

    Miloš Baljozović / Xunshan Liu / Olha Popova / Jan Girovsky / Jan Nowakowski / Harald Rossmann / Thomas Nijs / Mina Moradi / S. Fatemeh Mousavi / Nicholas C. Plumb / Milan Radović / Nirmalya Ballav / Jan Dreiser / Silvio Decurtins / Igor A. Pašti / Natalia V. Skorodumova / Shi-Xia Liu / Thomas A. Jung

    Magnetochemistry, Vol 7, Iss 119, p

    2021  Volume 119

    Abstract: Single layer low-dimensional materials are presently of emerging interest, including in the context of magnetism. In the present report, on-surface supramolecular architecturing was further developed and employed to create surface supported two- ... ...

    Abstract Single layer low-dimensional materials are presently of emerging interest, including in the context of magnetism. In the present report, on-surface supramolecular architecturing was further developed and employed to create surface supported two-dimensional binary spin arrays on atomically clean non-magnetic Au(111). By chemical programming of the modules, different checkerboards were produced combining phthalocyanines containing metals of different oxidation and spin states, diamagnetic zinc, and a metal-free ‘spacer’. In an in-depth, spectro-microscopy and theoretical account, we correlate the structure and the magnetic properties of these tunable systems and discuss the emergence of 2D Kondo magnetism from the spin-bearing components and via the physico-chemical bonding to the underlying substrate. The contributions of the individual elements, as well as the role of the electronic surface state in the bottom substrate, are discussed, also looking towards further in-depth investigations.
    Keywords self-assembly ; metal phthalocyanines ; scanning tunneling microscopy (STM) ; X-ray absorption spectroscopy (XAS) ; X-ray magnetic circular dichroism (XMCD) ; Kondo screening ; Chemistry ; QD1-999
    Subject code 530
    Language English
    Publishing date 2021-08-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article: Quality of meat in purebred pigs involved in crossbreeding schemes. II. Fatty acid composition of m. Longissimus thoracis

    Popova, Teodora / Nakev, Jivko / Rodriguez, Jose Manuel Lorenzo

    Bulgarian journal of agricultural science

    2020  Volume 26, Issue 6, Page(s) 1292

    Document type Article
    ZDB-ID 1306706-0
    ISSN 1310-0351
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

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  9. Article ; Online: BION-M 1: First continuous blood pressure monitoring in mice during a 30-day spaceflight.

    Andreev-Andrievskiy, Alexander / Popova, Anfisa / Lloret, Jean-Christophe / Aubry, Patrick / Borovik, Anatoliy / Tsvirkun, Daria / Vinogradova, Olga / Ilyin, Eugeniy / Gauquelin-Koch, Guillemette / Gharib, Claude / Custaud, Marc-Antoine

    Life sciences in space research

    2017  Volume 13, Page(s) 19–26

    Abstract: ... day automated Russian biosatellite Bion-M 1 space mission. The aim of the hemodynamic experiment was ...

    Abstract Animals are an essential component of space exploration and have been used to demonstrate that weightlessness does not disrupt essential physiological functions. They can also contribute to space research as models of weightlessness-induced changes in humans. Animal research was an integral component of the 30-day automated Russian biosatellite Bion-M 1 space mission. The aim of the hemodynamic experiment was to estimate cardiovascular function in mice, a species roughly 3000 times smaller than humans, during prolonged spaceflight and post-flight recovery, particularly, to investigate if mice display signs of cardiovascular deconditioning. For the first time, heart rate (HR) and blood pressure (BP) were continuously monitored using implantable telemetry during spaceflight and recovery. Decreased HR and unchanged BP were observed during launch, whereas both HR and BP dropped dramatically during descent. During spaceflight, BP did not change from pre-flight values. However, HR increased, particularly during periods of activity. HR remained elevated after spaceflight and was accompanied by increased levels of exercise-induced tachycardia. Loss of three of the five mice during the flight as a result of the hardware malfunction (unrelated to the telemetry system) and thus the limited sample number constitute the major limitation of the study. For the first time BP and HR were continuously monitored in mice during the 30-day spaceflight and 7-days of post-flight recovery. Cardiovascular deconditioning in these tiny quadruped mammals was reminiscent of that in humans. Therefore, the loss of hydrostatic pressure in space, which is thought to be the initiating event for human cardiovascular adaptation in microgravity, might be of less importance than other physiological mechanisms. Further experiments with larger number of mice are needed to confirm these findings.
    Language English
    Publishing date 2017-05
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2214-5532
    ISSN (online) 2214-5532
    DOI 10.1016/j.lssr.2017.03.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Mice in Bion-M 1 space mission: training and selection.

    Andreev-Andrievskiy, Alexander / Popova, Anfisa / Boyle, Richard / Alberts, Jeffrey / Shenkman, Boris / Vinogradova, Olga / Dolgov, Oleg / Anokhin, Konstantin / Tsvirkun, Darya / Soldatov, Pavel / Nemirovskaya, Tatyana / Ilyin, Eugeniy / Sychev, Vladimir

    PloS one

    2014  Volume 9, Issue 8, Page(s) e104830

    Abstract: ... with the successful 30-day flight of the Bion-M 1 biosatellite (April 19-May 19, 2013). The principal species ... the experimental design and the mouse training/selection program. The aim of mice experiments in the Bion-M 1 project was ... in space habitats were flown aboard the Bion-M 1 biosatellite, or remained on ground in the control ...

    Abstract After a 16-year hiatus, Russia has resumed its program of biomedical research in space, with the successful 30-day flight of the Bion-M 1 biosatellite (April 19-May 19, 2013). The principal species for biomedical research in this project was the mouse. This paper presents an overview of the scientific goals, the experimental design and the mouse training/selection program. The aim of mice experiments in the Bion-M 1 project was to elucidate cellular and molecular mechanisms, underlying the adaptation of key physiological systems to long-term exposure in microgravity. The studies with mice combined in vivo measurements, both in flight and post-flight (including continuous blood pressure measurement), with extensive in vitro studies carried out shortly after return of the mice and in the end of recovery study. Male C57/BL6 mice group housed in space habitats were flown aboard the Bion-M 1 biosatellite, or remained on ground in the control experiment that replicated environmental and housing conditions in the spacecraft. Vivarium control groups were used to account for housing effects and possible seasonal differences. Mice training included the co-adaptation in housing groups and mice adaptation to paste food diet. The measures taken to co-adapt aggressive male mice in housing groups and the peculiarities of "space" paste food are described. The training program for mice designated for in vivo studies was broader and included behavioral/functional test battery and continuous behavioral measurements in the home-cage. The results of the preliminary tests were used for the selection of homogenous groups. After the flight, mice were in good condition for biomedical studies and displayed signs of pronounced disadaptation to Earth's gravity. The outcomes of the training program for the mice welfare are discussed. We conclude that our training program was effective and that male mice can be successfully employed in space biomedical research.
    MeSH term(s) Adaptation, Physiological ; Animals ; Biomedical Research ; Eating ; Housing, Animal ; Male ; Mice, Inbred C57BL ; Physical Conditioning, Animal ; Research Design ; Russia ; Space Flight ; Weightlessness
    Language English
    Publishing date 2014-08-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0104830
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