Search Results - (Author, Cooperation:Y. Ivanova)
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1L Fedorova, S Fedorov, A Sadovnikov, Y Ivanova and M Voronina
Institute of Physics (IOP)
Published 2018Staff ViewPublication Date: 2018-02-20Publisher: Institute of Physics (IOP)Print ISSN: 1757-8981Electronic ISSN: 1757-899XTopics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPublished by: -
2Staff View
Publication Date: 2018-03-06Publisher: Oxford University PressPrint ISSN: 0006-3444Electronic ISSN: 1464-3510Topics: BiologyMathematicsMedicinePublished by: -
3M. M. Gubin ; X. Zhang ; H. Schuster ; E. Caron ; J. P. Ward ; T. Noguchi ; Y. Ivanova ; J. Hundal ; C. D. Arthur ; W. J. Krebber ; G. E. Mulder ; M. Toebes ; M. D. Vesely ; S. S. Lam ; A. J. Korman ; J. P. Allison ; G. J. Freeman ; A. H. Sharpe ; E. L. Pearce ; T. N. Schumacher ; R. Aebersold ; H. G. Rammensee ; C. J. Melief ; E. R. Mardis ; W. E. Gillanders ; M. N. Artyomov ; R. D. Schreiber
Nature Publishing Group (NPG)
Published 2014Staff ViewPublication Date: 2014-11-28Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: 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 usePublished by: -
4Commensal microbes and interferon-lambda determine persistence of enteric murine norovirus infectionM. 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 2014Staff ViewPublication Date: 2014-11-29Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: 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 SheddingPublished by: -
5Dimitriev, Y. ; Ivanova, Y. ; Dimitrova, M. ; Lefterova, E. D. ; Angelov, P. V.
Springer
Published 2000Staff ViewISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
6Samuneva, B. ; Ivanova, Y. ; Djambaski, P. ; Stefanova, S. ; Dimitriev, Y. ; Dimitrova-Lukacs, M.
Springer
Published 1998Staff ViewISSN: 1573-4846Keywords: composites ; gel-glass ; glass-ceramics ; apatite ; anorthiteSource: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyNotes: 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 ResourceURL: -
7Staff View
ISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
8Staff View
ISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
9Staff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: 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 ResourceURL: -
10Staff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: 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 ResourceURL: -
11Staff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: 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 ResourceURL: -
12Vassilev, V. ; Katzarska, V. ; Stefanova, S. ; Ivanova, Y. ; Vassileva, K. ; Hadjinikolova, S.
Springer
Published 1993Staff ViewISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
13Staff View
ISSN: 1573-4846Keywords: bioactive ceramics ; CaO-P2O5Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyNotes: 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 ResourceURL: -
14Staff View
ISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
15Staff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: 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 ResourceURL: -
16Staff View
ISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
17Vassilev, V. ; Bozhkova, L. ; Markova, I. ; Stefanova, S. ; Ivanova, Y. ; Vatchkov, V.
Springer
Published 1994Staff ViewISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: 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 ResourceURL: -
18Staff View
ISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
19Staff View
ISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: -
20Dimitriev, Y. ; Ivanova, Y. ; Gattef, E. ; Kashchieva, E. ; Vlahov, E. ; Dimitrov, V. ; Staneva, A.
Springer
Published 1991Staff ViewISSN: 1573-4811Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsType of Medium: Electronic ResourceURL: