Search Results - (Author, Cooperation:N. Malhotra)

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  1. 1
    Gamad, N., Shafiq, N., Malhotra, S.
    BMJ Publishing Group
    Published 2018
    Staff View
    Publication Date:
    2018-01-25
    Publisher:
    BMJ Publishing Group
    Print ISSN:
    1356-5524
    Electronic ISSN:
    1473-6810
    Topics:
    Medicine
    Published by:
    http://www.bmj.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    A. Franco ; N. Malhotra ; G. Simonovits
    American Association for the Advancement of Science (AAAS)
    Published 2014
    Staff View
    Publication Date:
    2014-08-30
    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:
    *Publication Bias ; *Social Sciences
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2015-06-27
    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:
    *Access to Information ; Disclosure ; *Guidelines as Topic ; Peer Review, Research ; Periodicals as Topic/*standards ; *Reproducibility of Results ; Research/*standards
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    Staff View
    Publication Date:
    2018-11-06
    Publisher:
    Rockefeller University Press
    Print ISSN:
    0022-1007
    Electronic ISSN:
    1540-9538
    Topics:
    Medicine
    Keywords:
    Hematopoiesis
    Published by:
    http://www.rupress.org/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    Staff View
    ISSN:
    0898-5529
    Keywords:
    AM1 ; Aromaticity ; Hetero bond lengths ; MNDO ; Semi-empirical MO
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0898-5529(90)90102-E

    Articles: DFG German National Licenses
  6. 6
    Tien, W.-M. ; Namachchivaya, N.S. ; Malhotra, N.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0020-7462
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0020-7462(94)90008-6

    Articles: DFG German National Licenses
  7. 7
    Singh, H. ; Aggarwal, S.K. ; Malhotra, N.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0040-4020
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/S0040-4020(01)91330-4

    Articles: DFG German National Licenses
  8. 8
    Malhotra, N.

    Oxford, UK : Blackwell Science Ltd
    Published 2005
    Staff View
    ISSN:
    1365-2044
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1365-2044.2005.04319.x

    Articles: DFG German National Licenses
  9. 9
    Srivastava, S. S. ; Garg, R. C. ; Malhotra, N. K. ; Kumar, S.
    Springer
    Published 1971
    Staff View
    ISSN:
    1436-5057
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Computer Science
    Description / Table of Contents:
    Zusammenfassung Untersucht wird das Verhalten eines Systems, das sich aus Komponenten dreier Typen zusammensetzt, wobei die Komponenten eines speziellen Typs sämtlich parallel liegen. Es wird ein mathematisches Modell entwickelt unter der Annahme exponentiell verteilter Fehlerabstände sowie — mit einer Ausnahme —beliebig verteilter Reparaturzeiten. DieLaplace-Transformationen verschiedener Zustandswahrscheinlichkeiten werden hergeleitet; schließlich werden zwei Spezialfälle gesondert diskutiert.
    Notes:
    Summary The behaviour of a parallel redundant complex system with three types of components has been investigated. Mathematical model has been developed for exponential failure and general repair time distributions in respect of components in all the three classes. TheLaplace transforms of the various state probabilities have been obtained. Two particular cases have also been discussed in the end.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF02279944

    Articles: DFG German National Licenses
  10. 10
    Malhotra, N. ; Wiggins, S.
    Springer
    Published 1998
    Staff View
    ISSN:
    1432-1467
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mathematics
    Physics
    Notes:
    Summary. In this paper we develop the mathematical framework for studying transport in two-dimensional flows with aperiodic time dependence from the geometrical point of view of dynamical systems theory. We show how the notion of a hyperbolic fixed point, or periodic trajectory, and its stable and unstable manifolds generalize to the aperiodically time-dependent setting. We show how these stable and unstable manifolds act as mediators of transport, and we extend the technique of lobe dynamics to this context. We discuss Melnikov's method for two classes of systems having aperiodic time dependence. We develop a numerical method for computing the stable and unstable manifolds of hyperbolic trajectories in two-dimensional flows with aperiodic time dependence. The theory and the numerical techniques are applied to study the transport in a kinematic model of Rossby wave flow studied earlier by Pierrehumbert [1991a]. He considered flows with periodic time dependence, and we continue his study by considering flows having quasi-periodic, wave-packet, and purely aperiodic time dependencies. These numerical simulations exhibit a variety of new transport phenomena mediated by the stable and unstable manifolds of hyperbolic trajectories that are unique to the case of aperiodic time dependence.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s003329900057

    Articles: DFG German National Licenses
  11. 11
    Staff View
    ISSN:
    0009-2940
    Keywords:
    Gas-phase dissociation ; Appearance energies ; Calculations, AM1 ; Pyridinium cations, N-benzyl-2,4,6-substituted ; Chemistry ; Inorganic Chemistry
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Collisionally activated dissociations (CADs) of various pyridine-ring substituted N-benzylpyridinium cations in the gas phase form the substituted pyridine and benzyl carbocation. Appearance energies (AEs) are estimated quantitatively from the appearance thresholds of the corresponding fragment ion from the laser-desorbed pyridinium cations. MO calculations predict that such unimolecular dissociation processes lead initially to ion-molecule pairs (IMPs): some such IMPs are of significantly lower energy than the fully dissociated products. The AEs have also been compared with the energy differences [ΔΔHf=ΔHf(Py) + ΔHf(R+)  -  ΔHf(Py+R)] determined by AM1 calculations: in many cases these are quite close to the calculated energy differences; discrepancies are discussed.
    Additional Material:
    1 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/cber.19921250129

    Articles: DFG German National Licenses
  12. 12
    Staff View
    ISSN:
    1573-269X
    Keywords:
    Reversible dynamical systems ; dissipation induced destabilization ; local bifurcations ; normal forms
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mathematics
    Notes:
    Abstract This paper examines the destabilization of the equilibria of reversible dynamical systems which is induced by the addition of irreversible perturbations. Attention is restricted to reversible dynamical systems which have frequently appeared in the literature on elastic stability. There they are often referred to as follower force problems. The destabilization phenomenon is linear in nature and explicit criteria are established to determine the particular eigenvalue splittings. The post-destabilization dynamics are also examined using the appropriate normal forms for two specific cases, one where the eigenvalues are non-resonant and the other where the eigenvalues are in a strong one-to-one resonance. Finally, the destabilization criteria and certain features of the post-destabilization dynamics are illustrated using two examples of follower force systems.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00114799

    Articles: DFG German National Licenses
  13. 13
    Katritzky, Alan R. ; Malhotra, N. ; Ramanathan, R. ; Kemerait, R. C. ; Zimmerman, Jaffrey A. ; Eyler, John R.

    New York, NY : Wiley-Blackwell
    Published 1992
    Staff View
    ISSN:
    0951-4198
    Keywords:
    Chemistry ; Analytical Chemistry and Spectroscopy
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Physics
    Notes:
    Complexes of the type [crown+M]+ were observed following laser desorption ionization of 18-crown-6 molecules ‘doped’ with K+, Cs+, and Ba+. Laser desorption ionization of 15-crown-5 and 12-crown-4 ‘doped’ with the same metals gave [(crown)]2+[M]+ type sandwich complexes. Binding energies of crown ethers with different metal ions in all such complexes have been estimated from appearance energies obtained in the collisionally-activated dissociation of the corresponding laster desorbed complexes.
    Additional Material:
    1 Tab.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/rcm.1290060106

    Articles: DFG German National Licenses
  14. 14
    Staff View
    ISSN:
    0030-493X
    Keywords:
    Chemistry ; Analytical Chemistry and Spectroscopy
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Thresholds for the appearance of fragment ions allowed the estimation of threshold fragmentation energies (TFE) for the collisionally activated dissociation (CAD) in the gas phase of laser-desorbed pyridine-ring substituted N-benzylpyridinium cations to form pyridine and a carbocation. p-Methylbenzylpyridinium cation underwent an alternative CAD into pyridinium cation and the p-quinodimethane. The TFE are discussed in comparison with the energy differences (ΔΔHf = ΔHf(Py) + ΔHf(R+) - ΔHf(Py +R) calculated by the AM1 method to provide strong evidence for benzyl to tropylium cation rearrangement in an ion-molecule pair.
    Additional Material:
    1 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/oms.1210271128

    Articles: DFG German National Licenses