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  • GEOPHYSICS  (4)
  • Cell wall  (3)
  • Atmospheric electric field  (2)
  • Key words Chitin synthase  (2)
  • Octopus visual cell  (2)
Collection
Keywords
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    Transretinal potential and cell membrane potential of Octopus photoreceptors
    Amsterdam : Elsevier
    Journal of Photochemistry and Photobiology B: Biology 23 (1994), S. 179-187 
    Details
    ISSN: 1011-1344
    Keywords: Electroretinogram ; Invertebrate photoreceptor ; Ion selectivity ; Light-dependent ion channel ; Octopus visual cell ; Transretinal potential to cell membrane potential
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/1011-1344(94)06993-X
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Light-dependent ion channels in Octopus visual cell membranes: The permeability of large organic ions and effects of cyclic GMP
    Amsterdam : Elsevier
    Journal of Photochemistry and Photobiology B: Biology 23 (1994), S. 161-177 
    Details
    ISSN: 1011-1344
    Keywords: Invertebrate photoreceptor ; Large organic ions ; Light-dependent ion channel ; Octopus visual cell ; cGMP-blocking
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/1011-1344(94)06989-1
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  • 3
    Electronic Resource
    Electronic Resource
    Short-period fluctuations in the atmospheric electric field over the ocean (1978)
    Springer
    Pure and applied geophysics 116 (1978), S. 1089-1100 
    Details
    ISSN: 1420-9136
    Keywords: Atmospheric electric field
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Fluctuations of short period in the atmospheric electric field were studied through the measurements of electric field and space charge density on the Mid-Pacific Ocean. The amplitude of fluctuation is about one third of the mean electric field, and the period mainly ranges from 2 to 5 min. The fluctuations are considered to be under the influence of spatial and temporal variation of space charge layer that possibly originates from the electrode effect above the sea surface. The unit of electrical irregularities in the atmosphere above the ocean has horizontal scale of the order of 1.5 km and indicates a tendency to become large as the wind speed increases. The vertical scale of space charge layer is estimated at several tens meters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00874673
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  • 4
    Electronic Resource
    Electronic Resource
    A seasonal effect in diurnal variation of the atmospheric electric field on the Pacific coast of Japan (1980)
    Springer
    Pure and applied geophysics 118 (1980), S. 953-963 
    Details
    ISSN: 1420-9136
    Keywords: Electric field ; Atmospheric electric field ; —seasonal variation of
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The measurement of the atmospheric electric field was carried out with a field mill at a small island in a bay on the Pacific coast of Japan. The data obtained during 80 months from 1971 to 1977 were analysed. It was found that characteristically the diurnal variation regularly alters with the seasons. Whereas the electric field in winter has the same diurnal pattern as that observed at globally representative stations, it exhibits in summer a pattern depending on the variation of the local electric conductivity. The alteration is inferred to be associated with regional atmospheric conditions surrounding the observation site.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01593042
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  • 5
    Electronic Resource
    Electronic Resource
    TheAspergillus nidulans geneschsA andchsD encode chitin synthases which have redundant functions in conidia formation (1996)
    Springer
    Molecular genetics and genomics 251 (1996), S. 442-450 
    Details
    ISSN: 1617-4623
    Keywords: Chitin synthase ; Multigene family ; Cell wall ; Conidia ; Aspergillus nidulans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We previously isolated three chitin synthase genes (chsA, chsB, andchsC) fromAspergillus nidulans. In the present work, we describe the isolation and characterization of another chitin synthase gene, namedchsD, fromA. nidulans. Its deduced amino acid sequence shows 56.7% and 55.9% amino acid identity, respectively, with Cal1 ofSaccharomyces cerevisiae and Chs3 ofCandida albicans. Disruption ofchsD caused no defect in cell growth or morphology during the asexual cycle and caused no decrease in chitin content in hyphae. However, double disruption ofchsA andchsD caused a remarkable decrease in the efficiency of conidia formation, while double disruption ofchsC andchsD caused no defect. Thus it appears thatchsA andchsD serve redundant functions in conidia formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02172373
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  • 6
    Electronic Resource
    Electronic Resource
    The Aspergillus nidulans genes chsA and chsD encode chitin synthases which have redundant functions in conidia formation (1996)
    Springer
    Molecular genetics and genomics 251 (1996), S. 442-450 
    Details
    ISSN: 1617-4623
    Keywords: Key words Chitin synthase ; Multigene family ; Cell wall ; Conidia ; Aspergillus nidulans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  We previously isolated three chitin synthase genes (chsA, chsB, and chsC) from Aspergillus nidulans. In the present work, we describe the isolation and characterization of another chitin synthase gene, named chsD, from A. nidulans. Its deduced amino acid sequence shows 56.7% and 55.9% amino acid identity, respectively, with Cal1 of Saccharomyces cerevisiae and Chs3 of Candida albicans. Disruption of chsD caused no defect in cell growth or morphology during the asexual cycle and caused no decrease in chitin content in hyphae. However, double disruption of chsA and chsD caused a remarkable decrease in the efficiency of conidia formation, while double disruption of chsC and chsD caused no defect. Thus it appears that chsA and chsD serve redundant functions in conidia formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02172373
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  • 7
    Electronic Resource
    Electronic Resource
    The Aspergillus nidulans genes chsA and chsD encode chitin synthases which have redundant functions in conidia formation (1997)
    Springer
    Molecular genetics and genomics 253 (1997), S. 520-528 
    Details
    ISSN: 1617-4623
    Keywords: Key words Chitin synthase ; Multigene family ; Cell wall ; Conidia ; Aspergillus nidulans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  We previously isolated three chitin synthase genes (chsA, chsB, and chsC) from Aspergillus nidulans. In the present work, we describe the isolation and characterization of another chitin synthase gene, named chsD, from A. nidulans. Its deduced amino acid sequence shows 56.7% and 55.9% amino acid identity, respectively, with Cal1 of Saccharomyces cerevisiae and Chs3 of Candida albicans. Disruption of chsD caused no defect in cell growth or morphology during the asexual cycle and caused no decrease in chitin content in hyphae. However, double disruption of chsA and chsD caused a remarkable decrease in the efficiency of conidia formation, while double disruption of chsC and chsD caused no defect. Thus it appears that chsA and chsD serve redundant functions in conidia formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380050353
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  • 8
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    Nitric oxide profile from 7 to 32 km (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: An analysis is given of some results of the LIMS experiment, launched on the Nimbus 7 satellite on October 24, 1978 for the purpose of sounding the middle atmosphere composition and structure. One of the LIMS channels was centered spectrally in the 6 micron region to measure vertical profiles and the global distribution of NO2 mixing ratio. The data reveal that NO2 is highly variable with altitude, latitude, longitude and time. Steep latitudinal gradients are observed in high latitude winter ('the NO2 cliff') when a wave number one pattern exists in the geopotential height field. The daytime gradient under these conditions is less than that for the night. The summer hemisphere column amount is considerably greater (by a factor of about 2) than in the winter hemisphere. The largest mixing ratios occur at 4 mb at night (about 20 ppbv) and 9 mb in the day (about 7 ppbv) and the latitude region of the peak mixing ratio is skewed toward the Southern Hemisphere. The mixing ratio variability is greater at night (by a factor of about 2 to 3) than in the day and there are significant long-term changes revealed by mixing ratio time series analyses on a pressure vs time grid.
    Keywords: GEOPHYSICS
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Balloon measurements of aerosol in the Antarctic stratosphere (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Three balloon soundings of aerosol were conducted from Syowa Station, Antarctica in April, June and October 1983. Number concentration and the size distribution of aerosol particles with diameter greater than 0.3 microns were measured by using a light scattering aerosol particle counter. The influence of the eruption of Mt. El Chichon on the aerosol concentration in the stratosphere was observed on October 16. Very high aerosol concentration at stratospheric heights was obtained from the first successful aerosol sounding in winter Antarctic stratosphere. The result gives direct evidence of winter enhancement in the Antarctic stratosphere.
    Keywords: GEOPHYSICS
    Type: International Council of Scientific Unions Handbook for MAP, Vol. 18; 4 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Aircraft measurements of aerosols in the upper troposphere at midlatitudes (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Aircraft measurements of aerosols were made during the years 1982 to 1984 in the upper troposphere. In some cases, the influence of the local atmospheric pollution originating from the land surface was observed. The background concentration of the Mie particle was about 0.1/cu. cm. at an altitude of 6 to 8 km. An air mass of stratospheric origin was observed over the Japan sea in the winters of 1983 and 1984. The Mie particle concentration increased and the count ratio of two size ranges was found to be a large value in 1983, the value decreased to that of a background level in the stratosphere in 1984. The volcanic eruption of Mt. El Chichon seems to be responsible for the large aerosol count ratio of the measurements of 1983.
    Keywords: GEOPHYSICS
    Type: International Council of Scientific Unions Handbook for MAP, Vol. 18; 5 p
    Format: text
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    NASA TECHNICAL REPORTS
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