Search Results - (Author, Cooperation:Krishnaji)

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  1. 1
    Krishnaji ; Srivastava, G. P.
    Springer
    Published 1958
    Staff View
    ISSN:
    1434-601X
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract Dispersion of millimeter waves due to ethyl chloride in the range ν=1·34 cm−1 to 1·44 cm−1 is computed by means of quantum mechanical formulas. It is found that dispersion is due to (i) contribution of sixR branch rotational lines in the region considered, (ii) contribution ofR branch lines away from the region and (iii) the contribution ofQ branch lines at zero wavenumber. The maximum variation in the susceptibility is 1·9 × 10−5 and occurs at ν=1·39 cm−1 due to combined contribution of transitions at 1·3878 cm−1, 1·3902 cm−1 and 1·3927 cm−1.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01322010

    Articles: DFG German National Licenses
  2. 2
    Krishnaji ; Swarup, Prem
    Springer
    Published 1954
    Staff View
    ISSN:
    1434-601X
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract Complex dielectric constant of the acetaldehyde vapour and its dependence on pressure and temperature has been studied in the microwave region at 9000 MC/sec. The electric susceptibility is found to vary linearly with pressure in the moderate pressure region. The absorption coefficient varies approximately as P2 showing convexity towards pressure axis. The temperature dependence law as obtained by absorption coefficient measurements at temperatures between −8° to 50° C follows T−3 law as expected onAnderson's orMargenau's expressions for $$\overline {\Delta v}$$ .
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01333525

    Articles: DFG German National Licenses
  3. 3
    Krishnaji ; Swarup, Prem
    Springer
    Published 1953
    Staff View
    ISSN:
    1434-601X
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract Variation in the electric susceptibility of Ammonia with pressure has been studied at several wavelengths in the 3 cm region by standing wave technique using an experimental cell of 3 metres length. The experimental values have been compared with those theoretically calculated on the basis of the quantum mechanical formula for dispersion byVan Vleck andWeisskopf suitably accounting for all the polarisations other than due to microwave inversion. The experimental values fall below the theoretical values. The value of susceptibility for Ammonia at atmospheric pressure is 5·3×10−3.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01325688

    Articles: DFG German National Licenses
  4. 4
    Krishnaji ; Kant, P. ; Srivastava, R.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0040-6090
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0040-6090(75)90096-6

    Articles: DFG German National Licenses
  5. 5
    Staff View
    ISSN:
    1432-0851
    Keywords:
    Key wordsγδ T cells ; Heat-shock proteins ; Cytotoxicity assay ; Flow cytometry ; Oesophageal tumour cells ; Monoclonal antibodies
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Abstract T cells expressing γδ receptors were isolated from the peripheral blood of oesophageal cancer patients and analysed for their potential to lyse tumour targets. Immunophenotyping by flow cytometry showed that the dominant population of γδ T cells expressed the Vγ9 and the Vδ2 T cell receptor, and a minor population expressed the Vδ1 receptor. Cytotoxicity assays revealed that activated γδ T cells lysed Daudi Burkitt's lymphoma and K562 cells. Lysis of autologous oesophageal tumours was higher than of allogenic tumours. Anti-hsp60 and anti-hsp70 mAb significantly inhibited the cytotoxicity of γδ T cells to both autologous and allogenic oesophageal tumours. Surface expression of hsp60 and hsp70 on oesophageal tumours and Daudi cells was demonstrated by flow cytometry. In conclusion, γδ T cells isolated from the peripheral blood of oesophageal cancer patients have the ability of kill oesophageal tumour cells. The lysis of tumour targets by the γδ T cells is brought about via recognition of heat-shock proteins expressed on the surface of tumour cells. γδ T cells isolated from the peripheral blood may have applications in adoptive immunotherapy of oesophageal cancer.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s002620050014

    Articles: DFG German National Licenses