Search Results - (Author, Cooperation:Y. Ivanova)

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  1. 1
    L Fedorova, S Fedorov, A Sadovnikov, Y Ivanova and M Voronina
    Institute of Physics (IOP)
    Published 2018
    Staff View
    Publication Date:
    2018-02-20
    Publisher:
    Institute of Physics (IOP)
    Print ISSN:
    1757-8981
    Electronic ISSN:
    1757-899X
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Chung Y, Ivanova A, Hudgens M, et al.
    Oxford University Press
    Published 2018
    Staff View
    Publication Date:
    2018-03-06
    Publisher:
    Oxford University Press
    Print ISSN:
    0006-3444
    Electronic ISSN:
    1464-3510
    Topics:
    Biology
    Mathematics
    Medicine
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2014-11-28
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Antibodies, Monoclonal/*therapeutic use ; Antigens, Neoplasm/*genetics/*immunology ; CD8-Positive T-Lymphocytes/*immunology ; Cancer Vaccines/*therapeutic use ; Cell Cycle Checkpoints/*immunology ; Epitopes/genetics ; *Immunotherapy ; Male ; Mice ; Sarcoma/immunology/*therapy ; Vaccines, Synthetic/therapeutic use
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  4. 4
    M. T. Baldridge ; T. J. Nice ; B. T. McCune ; C. C. Yokoyama ; A. Kambal ; M. Wheadon ; M. S. Diamond ; Y. Ivanova ; M. Artyomov ; H. W. Virgin
    American Association for the Advancement of Science (AAAS)
    Published 2014
    Staff View
    Publication Date:
    2014-11-29
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Anti-Bacterial Agents/pharmacology ; Caliciviridae Infections/drug therapy/immunology/microbiology/*virology ; Cytokines/*physiology ; Female ; Gastroenteritis/drug therapy/immunology/microbiology/*virology ; Intestines/*microbiology/virology ; Male ; Mice, Inbred C57BL ; Mice, Knockout ; *Microbiota/drug effects ; Norovirus/immunology/*physiology ; Receptors, Cytokine/genetics/metabolism ; Signal Transduction ; *Symbiosis ; Viral Load ; Virus Replication ; Virus Shedding
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  5. 5
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  6. 6
    Staff View
    ISSN:
    1573-4846
    Keywords:
    composites ; gel-glass ; glass-ceramics ; apatite ; anorthite
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Abstract Phase formation in heat-treated composites containing anorthite gel and fluorapatite has been investigated. For the sol-gel synthesis TEOS, Al(NO3)3·9H2 O, Ca(NO3)2·4H2O, (NH4)3PO4·3H2O, NH4F and CaF2 were used as precursors. The gel mixtures were treated from 200 to 1250°C. It was found that the gels remain in an amorphous state up to 900°C. From X-ray diffraction structural analysis of anorthite gel-glasses heat treated at 600°C and 800°C it was found that a shift of the first maximum occurred from 1.85 to 1.77 Å, which could be interpreted as a transformation of the gel-glass structure with increasing temperature. During the heat treatment of the mixed gels from the apatite-anorthite system it was found that fluorapatite is present as a major crystal phase at 950°C. At 1250°C anorthite and gehlenite are the major crystalline phases.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  7. 7
    Yordanov, St. ; Ivanova, Y. ; Dimitriev, Y. ; Lakov, L.
    Springer
    Published 2000
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  8. 8
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  9. 9
    Dimitriev, Y. ; Kashchieva, E. ; Ivanova, Y. ; Jambazov, S.
    Springer
    Published 1986
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract The glass formation in the quaternary TeO2-B2O3-MnO-Fe2O3 system and in its ternary systems was investigated. A range of liquid immiscible phases, located near to the binary TeO2-B2O3 and B2O3-MnO systems was established. Using transmission electron microscopy, a trend to metastable liquid-phase separation in the single-phase glasses, located near to the boundary of immiscibility was observed. With an increase in the Fe2O3 and MnO content still in the process of cooling of the melts, it was possible for a fine glassy crystalline structure to be formed in them. It was shown that by changing the upper limit of the melting temperature and the cooling rate, the glassy crystalline structure and the Fe3O4 content could be modified.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  10. 10
    Stavrakieva, D. ; Ivanova, Y. ; Pyrov, J.
    Springer
    Published 1988
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract The phase diagrams and the inconsistencies in the type and composition of the crystal phases in the PbO-TeO2 system reported by different workers are reported. With the help of X-ray microanalysis, X-ray analysis and IR spectroscopy new data about the composition of the crystal phases have been obtained. The data from the X-ray microanalysis were treated by the method of the number of the oxygen atoms, and the chemical formulae of the crystal phases were evaluated. The following phases were established: solid solution from PbO · 4TeO2 in 2PbO · 7TeO2, 2PbO · 5TeO2, 2PbO · 3TeO2, PbO · TeO2 with two polymorphic modifications, a phase with varied composition from 5PbO · 2TeO2 to 3PbO · TeO2, and 5PbO · TeO2. It was assumed that there was polymorphic transformation for the 2PbO · TeO2, 3PbO · TeO2 and 5PbO · TeO2 compositions. Data from X-ray analysis and the IR absorption spectra are presented. On the basis of the new data for the composition of the crystal phases and the data from the investigations of different workers a corrected phase picture of the PbO-TeO2 system is built up.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  11. 11
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract A dense electroinsulating ceramic was prepared at lower temperature (1400–1450 °C) compared to the solid phase synthesis. The synthesis of the spinel was carried out at 1000 °C reaching over 97% spinel by applying the sol-gel method and the inclusion of one of the components as a soluble salt. Combinations of additives like B2O3 and TiO2 were included as alcoholates during the process of hydrolysis. These additives caused an intensification in the course of the process of spinel-formation.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  12. 12
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  13. 13
    Staff View
    ISSN:
    1573-4846
    Keywords:
    bioactive ceramics ; CaO-P2O5
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Abstract The sol-gel method was applied to the synthesis of porous bioactive glass-ceramic materials in the Ca-Al2O3-P2O5-ZnO system when compositions were chosen in the glass formation range. Aluminium sol and soluble inorganic salts of the other components have been used as starting materials. The sol-gel transition was achieved by controlling the pH value of the medium. After drying the gel products were thermally treated up to 800°C, Phase formation was studied by X-ray diffraction, IR spectroscopy and electron microscopy. It was found that the main crystalline phases in the glass ceramics were C(PO3)2 and Ca2P2O7. The amorphous powder was sintered to form ceramic materials with average pore size distribution of 150–200 µm by isostatic pressing and heat treatment at 500–600°C. This glass ceramic is more bioactive than hydroxylapatite in the initial stage after implantation.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  14. 14
    Ivanova, Y. ; Vassilev, V. ; Stefanova, S. ; Staneheva, M.
    Springer
    Published 1993
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  15. 15
    Stavrakeva, D. ; Ivanova, Y. ; Pyrov, Y.
    Springer
    Published 1990
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract With the help of X-ray microanalysis and X-ray analysis new data about the composition of the crystal phase in the Cu-Te-O system have been obtained. The data from the X-ray microanalysis were treated by the method of the number of the oxygen atoms, and the chemical formulae of the crystal phases were evaluated. The following phases were established: the real composition of the stoichiometric composition 2TeO2 · CuO corresponds to the crystalline phase 5TeO2 · 2CuO with variable composition in the limits from 7TeO2 · 3CuO to 11TeO2 4CuO with X-ray data presented as 2TeO2 · CuO phase. The composition TeO2 · CuO corresponds to a crystalline phase from TeO2 · CuO to 6TeO2 · 5CuO. From a melt of TeO2 · CuO composition overcooled and crystallized is formed 5CuO · 2TeO2. At a given composition 3CuO · TeO2 or 3CuO · TeO3 corresponds to the crystalline phase 5CuO · 2TeO3 with two polymorphic modifications — cubic and tetragonal. The X-ray data obtained in the present investigation and those in literature are accepted to correspond to two polymorphic forms.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  16. 16
    Ivanova, Y.
    Springer
    Published 1991
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  17. 17
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract Using differential thermal analysis, X-ray diffraction analysis and composite phase diagrams, the most probable form of the polythermal section Ag2/3Zn1/3-Te of the ternary system Ag-Zn-Te has been deduced. It was found to be non-quasi-binary with 14 phase fields and four isotherms of the non-variant equilibria. It is suggested that a phase with composition Ag2ZnTe2, stable at temperatures above 515°C, is formed.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  18. 18
    Dimitriev, Y. ; Mihailova, V. ; Dimitrov, V. ; Ivanova, Y.
    Springer
    Published 1991
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  19. 19
    Kashchieva, E. ; Ivanova, Y.
    Springer
    Published 1991
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  20. 20
    Staff View
    ISSN:
    1573-4811
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses