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  • 1
    Electronic Resource
    Electronic Resource
    Torsional oscillation of a visco elastic cylinder in a magnetic field (1971)
    Springer
    Pure and applied geophysics 91 (1971), S. 51-55 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The paper deals with the torsional oscillation in a hollow cylinder of visco-elastic material acted upon by a magnetic field. It is assumed that the medium apart from being perfectly conducting, is characterised by a visco-elasticity of general-linear type.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00879556
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  • 2
    Electronic Resource
    Electronic Resource
    Radial vibration of a composite cylindrical shell subjected to a magnetic field (1972)
    Springer
    Pure and applied geophysics 97 (1972), S. 44-50 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The radial vibration in a composite cylindrical shell under the effect of a magnetic field has been investigated by solving the equations of elasticity, taking into account electromagnetic equations of Maxwell. The frequency equation has been obtained at the final stage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875947
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  • 3
    Electronic Resource
    Electronic Resource
    Mechanical response of a piezoelectric composite transducer subjected to a thermal field (1972)
    Springer
    Pure and applied geophysics 94 (1972), S. 60-65 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The present paper studies the mechanical response of a piezoelectric composite transducer—with an elastic compliance partly constant and partly variable with time—acted upon by suitable thermal field besides the electrical voltage. The Laplace transform has been applied to solve the problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875670
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of pesticides on blue-green algae (1973)
    Springer
    Archives of microbiology 89 (1973), S. 317-320 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Effect of pesticides, i.e., Benzene Hexachloride, Lindane, Diazinon and Endrin that are often used in India was observed on nitrogen-fixing blue-green algae Cylindrospermum sp., Aulosira fertilissima Ghose and aerobically non-nitrogen-fixing blue-green alga Plectonema boryanum strain 594. These algae were sensitive for BHC in comparison to other pesticides. A. fertilissima and P. boryanum were more resistant than Cylindrospermum sp.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00408898
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  • 5
    Electronic Resource
    Electronic Resource
    Isolation of gas vacuole-less mutants of the blue-green alga Anabaenopsis raciborskii (1976)
    Springer
    Archives of microbiology 111 (1976), S. 195-196 
    Details
    ISSN: 1432-072X
    Keywords: Mutation ; Blue-green alga ; Anabaenopsis raciborskii ; Gas vacuole ; Nitrogen fixation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract From a bloom forming blue-green alga, Anabaenopsis raciborskii, spontaneous mutants, which had lost the ability to form gas vacuoles have been isolated; the mutant frequency was 4.8×10-3. The filaments of gas vacuole-less mutants settled at the bottom of flasks in liquid culture media unlike the parent alga. The growth and nitrogen fixation were comparatively poor in the mutants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00446569
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  • 6
    Electronic Resource
    Electronic Resource
    Lysogeny in the blue-green algaNostoc muscorum (1978)
    Springer
    Archives of microbiology 117 (1978), S. 265-268 
    Details
    ISSN: 1432-072X
    Keywords: Nostoc muscorum ; Blue-green Algal virus ; N-1 ; Lysogeny ; Induction ; Heat ; Mitomycin C
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Lysogens were isolated after confluent lysis of the blue-green algaNostoc muscorum by N-1 virus and characterised. The spontaneous liberation of active virus particles in lysogens was not lost after treating them with viricidal concentration of EDTA and virus titre obtained in their cultures was 〉5×103 PFU/ml. The virus adsorbed on the lysogens with a slower rate than on parent alga, although it followed the pattern of a first order reaction. The heat treatment (45°C for 14h) of the lysogens failed to induce lysis, whereas mitomycin C (1–2 μg/ml) was effective in inducing lysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00738545
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  • 7
    Electronic Resource
    Electronic Resource
    Photoreactivation of UV-irradiated blue-green algae and algal virus LPP-1 (1975)
    Springer
    Archives of microbiology 103 (1975), S. 297-302 
    Details
    ISSN: 1432-072X
    Keywords: Photoreactivation ; UV-Irradiation ; Cylindrospermum ; Plectonema boryanum ; Fischerella muscicola ; Cyanophage LPP-1
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Ultraviolet (UV) sensitivity and photoreactivation of blue-green algae Cylindrospermum sp., Plectonema boryanum, spores of Fischerella muscicola and algal virus (cyanophage) LPP-1 were studied. The survival value after UV irradiation of filaments of Cylindrospermum sp. and Virus LPP-1 showed exponential trend and these were comparatively sensitive towards UV than F. muscicola and P. boryanum. Photoreactivation of UV-induced damage occurred in black, blue, green, yellow, red and white light in Cylindrospermum sp., however only black, blue and white light were capable of photorepair of UV-induced damage in P. boryanum, spores of F. muscicola and virus LPP-1 in infected host alga. Pre-exposure to yellow and black light did not show photoprotection. The non-heterocystous and nitrogen fixation-less mutants of Cylindrospermum sp. were not induced by UV and their spontaneous mutation frequency was not affected after photoreactivation. The short trichome mutants of P.boryanum were more resistant towards UV. The occurrence of photoreactivation of UV-induced killing in wide range of light in Cylindrospermum sp. is the first report in organisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00436364
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  • 8
    Electronic Resource
    Electronic Resource
    Nitrogen fixation by the unicellular blue-green alga Aphanothece (1973)
    Springer
    Archives of microbiology 92 (1973), S. 59-62 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Frequent growth of unicellular blue-green alga Aphanothece sp. was observed in medium free of combined nitrogen. Its generation time was 12 h and more than 2 mg of nitrogen was fixed in 25 days. Its growth and nitrogen fixation were comparable to other heterocystous algae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00409511
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of temperature on the adsorption and one-step growth of the Nostoc virus N-1 (1977)
    Springer
    Archives of microbiology 115 (1977), S. 163-167 
    Details
    ISSN: 1432-072X
    Keywords: Nostoc virus N-1 ; Temperature ; Adsorption ; One-step growth ; Viral development ; Nostoc muscorum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This study was an attempt to observe the effects of temperature on adsorption and one-step growth of the virus N-1 infecting the nitrogen-fixing cyanobacterium Nostoc muscorum. Adsorption rate was found to be maximum at 40° C whereas no adsorption occurred at 10° C. The Q 10 value was about 2.03 and the energy of activation, Ea was 16.3 kcal/ mole for the adsorption process. The development cycle of the virus was temperature sensitive. With increase in temperature, a gradual increase in inhibition of virus yield i.e. 8.33% at 30° C, 35.3% at 35° C and complete inhibition at 40° C was observed. Out of 7 h latent period, the early 4 h were temperature sensitive and heat treatment had a reversible inhibitory effect on virus development. The temperature treatment did not affect the rise period but burst-size was reduced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00406370
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  • 10
    Electronic Resource
    Electronic Resource
    Occurrence and distribution of cyanophages in ponds, sewage and rice fields (1973)
    Springer
    Archives of microbiology 89 (1973), S. 169-172 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Occurrence and distribution of cyanophages and cyanophyceae have been observed in permanent ponds, sewage and rice fields of Cuttack. Two distinct types of cyanophages, i.e., clear (virulent) and turbid (lysogenic) plaque forming strains were observed in natural habitat. Cyanophages were reported for the first time in rice fields of India.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00425031
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