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  • 1
    Electronic Resource
    Electronic Resource
    Fragmentation thermochemistry of gas-phase ions by threshold photodissociation and charge-exchange ionization. Methylnaphthalene and methylstyrene ions (1985)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 89 (1985), S. 3617-3622 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100263a011
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  • 2
    Electronic Resource
    Electronic Resource
    Overtone-induced isomerization of allyl isocyanide (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 89 (1988), S. 5704-5714 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The rate of isomerization of allyl isocyanide to allyl cyanide is monitored using Stern–Volmer kinetics when various features of the 5–0 and 6–0 C–H overtone stretch region are excited. Previously, Reddy and Berry found that the isomerization rates varied from band to band and that the variations were not monotonic with excitation energy. They attributed this behavior to nonstatistical effects. It is found in this study that the isomerization rates vary within an overtone band by up to a factor of 1.8, in addition to the variations from band to band seen previously. This observation rules out the possibility that the overtone bands are purely lifetime broadened. In addition, the photoisomerization rate increases with increasing temperature. An increase of 60 K increases the photolysis yield in the 5–0 C–H region by a factor of 3–4, while increases in the 6–0 C–H region are smaller, 25%–60%. These effects can be qualitatively explained if the overtone spectrum of allyl isocyanide is inhomogeneously broadened because of the presence of vibrational "hot bands.'' In this case, molecules excited by the photolysis laser will have varying amounts of initial thermal energy depending on where the laser is tuned within a band. A simple model for the effects of hot bands on the isomerization rate is in good agreement with experimental results. It is not necessary to invoke nonstatistical effects in order to explain the observed overtone-pumped isomerization rates of allyl isocyanide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.455580
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  • 3
    Electronic Resource
    Electronic Resource
    THE GREAT ESCAPE: When Cancer Cells Hijack the Genes for Chemotaxis and Motility (2005)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Cell and Developmental Biology 21 (2005), S. 695-718 
    Details
    ISSN: 1081-0706
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Medicine
    Notes: The combined use of the new technologies of multiphoton-based intravital imaging, the chemotaxis-mediated collection of invasive cells, and high sensitivity expression profiling has allowed the correlation of the behavior of invasive tumor cells in vivo with their gene expression patterns. New insights have resulted including a gene expression signature for invasive cells and the tumor microenvironment invasion model. This model proposes that tumor invasion and metastasis can be studied as a problem resembling normal morphogenesis. We discuss how these new insights may lead to a better understanding of the molecular basis of the invasive behavior of tumor cells in vivo, which may result in new strategies for the diagnosis and treatment of metastasis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.cellbio.21.122303.120306
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  • 4
    Electronic Resource
    Electronic Resource
    Recombinative desorption of hydrogen from the Ge(100)–(2×1) surface: A laser-induced desorption study (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 102 (1995), S. 7222-7228 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The recombinative desorption of H2 from Ge(100)–(2×1) is studied by temperature programed desorption (TPD) and laser-induced desorption (LID). In contrast to what is observed for the Si(100)–(2×1) surface, the TPD spectra for Ge(100) do not appear to show appreciable formation of a stable dihydride species. Both the TPD and LID results are consistent with the first-order recombinative desorption kinetics. Analysis of the LID results yield an activation energy, Ea=40±2 kcal/mol and preexponential factor, ν=4×1013±1 s−1. The results are discussed in terms of several mechanisms that have been proposed for the first-order recombinative desorption of hydrogen from Si(100)–(2×1). © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.469117
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  • 5
    Electronic Resource
    Electronic Resource
    Signal processing times in bacterial chemotaxis (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 855-857 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Cells were tethered to glass with antibodies directed against flagellar filaments, so that rotation of a cell body could be used to monitor the rotation of a flagellar motor17. Individual cells were observed with a microscope equipped with an opto-elec-tronic device that provided a continuous ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/296855a0
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  • 6
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    'Kulturbolshevismus Is Here': James Joyce and the Anti-Modernist Crusade in America, 1928-1944 (1990)
    Philadelphia, Pa. : Periodicals Archive Online (PAO)
    Journal of modern literature. 16:4 (1990:Spring) 535-562 
    Details
    ISSN: 0022-281X
    Topics: Linguistics and Literary Studies
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h313-1990-016-04-000005
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  • 7
    Electronic Resource
    Electronic Resource
    Preventing wars (1982)
    [s.l.] : Nature Publishing Group
    Nature 300 (1982), S. 10-10 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - I was pleased to read that J.R. Skoyles (Nature 1 October, p.482) approves of the proposals for a "comprehensive ban on all methods and means of warfare specifically designed to kill or injure by inducing human disease". I feel that the criticisms with which he continues his letter are based ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/300010c0
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  • 8
    Electronic Resource
    Electronic Resource
    Disarmament ideas (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 102-102 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Among the many documents presented to the UN General Assembly at its Second Special Session on Disarmament (7 June-10 July) was one from the Medical Association for Prevention of War (MAWP) containing a completely new proposal. This calls for "a comprehensive ban on all methods and means of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/299102c0
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  • 9
    Electronic Resource
    Electronic Resource
    … and should be treated the same as genomics (2000)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 403 (2000), S. 478-478 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sir Your Briefing on proteomics was valuable and informative. Unfortunately, the Opinion (Nature 402, 703; 1999) was less so. The writer notes that “Nature intends to play its part by insisting on conceptual insights from ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35000750
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  • 10
    Electronic Resource
    Electronic Resource
    Chemotaxis of metastatic tumor cells: Clues to mechanisms from the Dictyostelium paradigm (1992)
    Springer
    Cancer and metastasis reviews 11 (1992), S. 55-68 
    Details
    ISSN: 1573-7233
    Keywords: cortical expansion model ; actin ; actin binding proteins ; signal transduction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Amoeboid movement, and in some cases, amoeboid chemotaxis, is a key step in tumor metastasis. The high degree of conservation in signal transduction pathways and motile machinery in eukaryotic cells suggests that insights and molecular probes developed from the study of these processes in easily manipulated experimental model systems will be applicable directly to experimentally intractable tumor cells. One such model system, Dictyostelium discoideum, is discussed in terms of the molecular events involved in amoeboid chemotaxis. The application of insights and assays developed with Dictyostelium to early events in the chemotaxis of Lewis lung carcinoma cells is reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00047603
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