Search Results - (Author, Cooperation:S. Chakravarty)

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  1. 1
    Staff View
    Publication Date:
    2013-08-10
    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:
    Administration, Intravenous ; Adult ; Animals ; Cytokines/immunology ; Female ; Humans ; Immunity, Cellular ; Malaria Vaccines/*administration & dosage/adverse effects/*immunology ; Malaria, Falciparum/*prevention & control ; Male ; Mice ; Plasmodium falciparum/*immunology ; Sporozoites/immunology ; T-Lymphocytes/immunology ; Vaccination/adverse effects/methods
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2011-09-10
    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:
    Adolescent ; Adult ; Animals ; Antibodies, Protozoan/blood/immunology ; Antigens, Protozoan/immunology ; CD8-Positive T-Lymphocytes/*immunology ; Humans ; Injections, Intravenous ; Injections, Subcutaneous ; Interferon-gamma/biosynthesis/immunology ; Liver/*immunology ; Macaca mulatta ; Malaria Vaccines/administration & dosage/adverse effects/*immunology ; Malaria, Falciparum/*prevention & control ; Mice ; Middle Aged ; Plasmodium falciparum/*immunology ; Rabbits ; Sporozoites/*immunology ; Vaccines, Attenuated/administration & dosage/adverse effects/immunology ; Young Adult
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Arora, B. M. ; Chakravarty, S. ; Subramanian, S. ; Polyakov, V. I. ; Ermakov, M. G. ; Ermakova, O. N. ; Perov, P. I.

    [S.l.] : American Institute of Physics (AIP)
    Published 1993
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Deep-level transient charge spectroscopy (QDLTS) measurement is described. The technique is used to investigate energy levels of tin in AlxG1−xAs. The QLDTS spectra have multiple peaks which show the multilevel nature of the tin donors.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.353189

    Articles: DFG German National Licenses
  4. 4
    Subramanian, S. ; Anand, S. ; Chakravarty, S. ; Arora, B. M.

    Woodbury, NY : American Institute of Physics (AIP)
    Published 1989
    Staff View
    ISSN:
    1077-3118
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The effect of alloy fluctuations on the emission barrier of the DX center in aluminum gallium arsenide (AlGaAs) is studied by constant capacitance deep level transient spectroscopy using Si-doped and Sn-doped samples grown by different growth techniques. All the samples showed single broadened peaks which were analyzed by assuming a Gaussian distribution for the emission barrier. The full width at half maximum for the emission barrier spread was found to be the same (∼0.05+0.005 eV) for all the samples and is of the same order as the reported capture barrier spread for Si-doped AlGaAs, which strongly suggests that the binding energy spread of the DX center in AlGaAs is very small.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.101211

    Articles: DFG German National Licenses
  5. 5
    Chakravarty, S. ; Kent, S. L. ; Newman, E. T.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1995
    Staff View
    ISSN:
    1089-7658
    Source:
    AIP Digital Archive
    Topics:
    Mathematics
    Physics
    Notes:
    A reduction of the self-dual Yang–Mills (SDYM) equations is studied by imposing two space–time symmetries and by requiring that the connection one-form belongs to a Lie algebra of formal matrix-valued differential operators in an auxiliary variable. In this article, the scalar case and the canonical cases for 2×2 matrices are examined. In the scalar case, it is shown that the field equations can be reduced to the forced Burgers equation. In the matrix case, several well-known 2+1 integrable equations are obtained. Also examined are certain transformation properties between the solutions of some of these 2+1 equations. © 1995 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.531155

    Articles: DFG German National Licenses
  6. 6
    Mason, L. ; Chakravarty, S. ; Newman, E. T.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1988
    Staff View
    ISSN:
    1089-7658
    Source:
    AIP Digital Archive
    Topics:
    Mathematics
    Physics
    Notes:
    Beginning from any given (local) solution of the GL(n,C) anti-self-dual Yang–Mills (ASDYM) equations on Minkowski space, a simple technique for the generation of large classes of solutions (perhaps in some sense all) is given. The origin of this technique is described in terms of two versions of the Ward construction. The resulting description of Bäcklund transformations is sufficiently simple that it is then possible to identify the group generated by the collection of all such Bäcklund transformations and the space on which it acts in terms of concrete functions.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.528014

    Articles: DFG German National Licenses
  7. 7
    Chakravarty, S. ; Newman, E. T.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1987
    Staff View
    ISSN:
    1089-7658
    Source:
    AIP Digital Archive
    Topics:
    Mathematics
    Physics
    Notes:
    It is the purpose of this paper to show that the GL(2,C) Yang–Mills equations can be solved in terms of integrals over the characteristic initial data. The method is based on showing that enough gauge freedom exists in the choice of characteristic initial data so that the data can always be put into either upper or lower triangular form. With triangular form data the Sparling equation (a linear first-order equation equivalent to the self-dual Yang–Mills equations) can be solved by explicit quadratures.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.527662

    Articles: DFG German National Licenses
  8. 8
    Chakravarty, S. ; Subramanian, S. ; Sharma, D. K. ; Arora, B. M.

    [S.l.] : American Institute of Physics (AIP)
    Published 1989
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Deep-level admittance spectroscopy (DLAS) of DX centers in AlxGa1−xAs:Sn (0.2〈x〈0.6) reveals the presence of three levels SN1, SN2, and SN3 related to the Sn donor. While SN1 and SN3 are observed in all the samples, SN2 is prominently seen only in the indirect band-gap samples. The conventional capacitance deep-level transient spectroscopy (DLTS) is found to be unsuitable for the study of the DX center in AlxGa1−xAs:Sn with x〉0.35 because of the strong freeze-out of free carriers in these samples. Even in the case of low AlAs mole fraction samples (x〈0.35), the DLTS technique fails to reveal all the levels observed by DLAS and provides information only on the SN3 level.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.344029

    Articles: DFG German National Licenses
  9. 9
    CHAKRAVARTY, S. C. ; RASTOGI, R. G.

    [s.l.] : Nature Publishing Group
    Published 1969
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] The deviations (L) were obtained by subtracting the respective monthly median values from the corresponding^ daily absorption values, and these were grouped according to lunar age v0 (for Greenwich noon) separately for three seasons: D-months (November, December, January, February), E-months ...
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1038/223939a0

    Articles: DFG German National Licenses
  10. 10
    Chakravarty, S.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0305-750X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Geography
    Political Science
    Sociology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0305-750X(83)90089-X

    Articles: DFG German National Licenses
  11. 11
    Mason, L. ; Chakravarty, S. ; Newman, E.T.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0375-9601
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0375-9601(88)90240-X

    Articles: DFG German National Licenses
  12. 12
    CHAKRAVARTY, S.

    Chicago : Periodicals Archive Online (PAO)
    Published 1962
    Staff View
    ISSN:
    0013-0079
    Topics:
    Geography
    Economics
    Notes:
    "REVIEWS"
    URL:
    http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:5112-1962-010-04-000010

    Articles: DFG German National Licenses
  13. 13
    Chakravarty, S. ; Kannan, K.K.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0022-2836
    Keywords:
    Drug-protein interactions ; Sulfonamide complexes ; human carbonic anhydrase I ; refined crystal structures ; synchrotron radiation
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1006/jmbi.1994.1655

    Articles: DFG German National Licenses
  14. 14
    Chakravarty, S. ; Srivastava, A.M.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0550-3213
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0550-3213(93)90010-M

    Articles: DFG German National Licenses
  15. 15
    Chakravarty, S. ; Miller, M.D. ; Chia-Wei, W.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0375-9474
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0375-9474(74)90716-7

    Articles: DFG German National Licenses
  16. 16
    Chakravarty, S.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0550-3213
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0550-3213(93)90495-B

    Articles: DFG German National Licenses
  17. 17
    Singh, R.R.P. ; Chakravarty, S.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0550-3213
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0550-3213(86)90309-3

    Articles: DFG German National Licenses
  18. 18
    Chakravarty, S.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0378-4363
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0378-4363(84)90192-X

    Articles: DFG German National Licenses
  19. 19
    Chakravarty, S. ; Schmid, A.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0370-1573
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0370-1573(86)90027-X

    Articles: DFG German National Licenses
  20. 20
    Chakravarty, S. ; Mitra, A.N. ; Sen, S.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0370-2693
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0370-2693(77)90820-6

    Articles: DFG German National Licenses