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  • 1980-1984  (92)
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  • 1
    Electronic Resource
    Electronic Resource
    Chromatin structural changes in synchronized cells blocked in early S phase by sequential use of isoleucine deprivation and hydroxyurea blockade (1983)
    s.l. : American Chemical Society
    Biochemistry 22 (1983), S. 5631-5640 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00293a027
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  • 2
    Electronic Resource
    Electronic Resource
    Histone H2A phosphorylation in animal cells: functional considerations (1982)
    s.l. : American Chemical Society
    Biochemistry 21 (1982), S. 2412-2420 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00539a021
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  • 3
    Electronic Resource
    Electronic Resource
    Book Reviews- The Statistical Analysis of Failure Time Data (1983)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 105 (1983), S. 2510-2510 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00346a623
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  • 4
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    Unknown
    Capsule Commentaries (1984)
    Menasha, Wis. : Periodicals Archive Online (PAO)
    The Accounting Review. 59:4 (1984:Oct.) 719 
    Details
    ISSN: 0001-4826
    Topics: Economics
    Notes: Departments
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:5030-1984-059-04-000029
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  • 5
    Electronic Resource
    Electronic Resource
    Theory for Aquifer Test Analysis in Fractured Rocks Under Linear (Nonradial) Flow Conditions (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 20 (1982), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: The flow of ground water in a fractured rock aquifer may be linear toward a natural production surface rather than radial toward a pumping well, if the well penetrates a fracture having a permeability many orders of magnitude greater than the permeability of the surrounding aquifer. The well and its hydraulically connected production surface are called an extended well. Flow lines in a linear system are parallel, and drawdown is a function of the perpendicular distance from the extended well and not a function of the radius of the pumped well. The location of a concealed fracture and hydraulic diffusivity of the linear system can be determined if drawdown data from two observation wells are available.Linear flow has been recognized in fractured rock aquifers from aquifer test data in three widely separated areas of New Mexico and probably is the cause of the anomalous response observed in fractured rock aquifers in Mendocino and Placer Counties, California. Test data were curvilinear on semi-log plots and straight lines on log-log plots, suggesting that traditional methods of aquifer test analysis are not applicable. Straight lines could be fitted to arithmetic plots of pumped well and observation well data when plotted as drawdown versus √t, indicating that the flow in the vicinity of the test well is linear. Linear flow may be a common phenomenon that has been overlooked in the analysis of aquifer tests in fractured rock aquifers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1982.tb01325.x
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  • 6
    Electronic Resource
    Electronic Resource
    Legacy of tradition in plant geography (1982)
    [s.l.] : Nature Publishing Group
    Nature 295 (1982), S. 472-472 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Historical Plant Geography: An Introduction. By Philip Stott. Pp.151. Hbk ISBN 0-04-580010-3; pbk ISBN 0-04-580011-1. (George Alien & Unwin: 1981.) Hbk £12, $30; pbk £5.95, $14.95. THIS book is an elementary introduction to the traditional subject matter of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/295472a0
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of UV-B radiation on near-surface zooplankton of puget sound (1980)
    Springer
    Oecologia 44 (1980), S. 149-158 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An increase in incident solar ultraviolet irradiation, resulting from possible deterioration of the stratospheric ozone layer, would have important biological effects. Though the oceans are relatively opaque to UV radiation, compared to visible light, increases in incident UV may affect organisms living within the first few meters of the sea surface. Shrimp larvae, crab larvae, and euphausids were exposed to various low levels of simulated solar UV radiation (UV-B, 290–315 nm) under laboratory conditions. Comparisons between solar and artificial spectra were based on spectroradiometric measurements converted to erythemally effective irradiance. These zooplankton tolerated UV-B irradiance levels up to threshold levels with no significant reduction in survival or developmental rates compared to control organisms. Beyond the threshold levels, activity, development, and survival rapidly declined. The apparent UV thresholds are near present incident UV levels. Observed survival threshold levels for each experimental group were superimposed on seasonal solar incident UV levels at the experimental site. These threshold levels appeared to be exceeded by median ambient UV levels late in the season of surface occurrence of each species. UV increases resulting from ozone depletion may significantly shorten this season. Although the apparent impact would be lessened by the decrease in UV with depth, irreversible detrimental effects would probably occur before reported survival thresholds were exceeded.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00572672
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  • 8
    Electronic Resource
    Electronic Resource
    Chemical reactions following the IRMPD of C2F3Cl (1984)
    Springer
    Applied physics 34 (1984), S. 97-106 
    Details
    ISSN: 1432-0649
    Keywords: 82.50 ; 33
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract C2F3Cl is photolyzed with a TEA-CO2 laser at 1050.44 cm−1 with focussed fluences up to 280 J/cm2. The stable products in the IRMPD of C2F3Cl are determined for up to 10 Torr of C2F3Cl being photolyzed both neat and with added O2. C2F4 and trans-C2F2Cl2 are found to occur in the greatest yield though C3F5Cl, C3F4Cl2, C4F7Cl, and C2F3Cl3 also appear to be primary products. When O2 is present F2CO, FClCO, and CF2ClCOF are the exclusive products. The formation of these products are for the most part consistent with a carbene formation dissociation mechanism for C2F3Cl IRMPD. C2F3Cl3 may best be explained by another mechanism competitive with carbene formation. Many products attributed to secondary photolysis mechanisms are observed for long photolysis times.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00697955
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  • 9
    Electronic Resource
    Electronic Resource
    Agriculturally induced vegetation change, 1950–1975 (1980)
    Springer
    Human ecology 8 (1980), S. 105-116 
    Details
    ISSN: 1572-9915
    Keywords: agriculture ; biomass ; biomass distribution ; biomass change ; net primary productivity ; vegetation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Ethnic Sciences
    Notes: Abstract Changes in worldwide grain production area are analyzed to assess the impact of major agricultural activity onglobal biomass. During the 26-year study period, nearly 1% of the earth's ice-free land surface was converted to grain production. This increase in agricultural area reduced the planetary biomass; however, it had minimal effect on net primary productivity. Geographically, the overall change caused by increased grain production has been to redistribute the planetary biomass poleward.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01531437
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  • 10
    Electronic Resource
    Electronic Resource
    The sex ratlo in a dioecious endemic plant, Silene dielinis (1984)
    Springer
    Genetica 64 (1984), S. 129-133 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Silene diclinis is a rare Spanish relative of the well-studied dioecious S. dioica and S. latifolia (=S. alba, S. pratensis). The main wild population and its cultivated derivatives showed female biased sex ratios. The ratios did not differ significantly between subpopulations or between the wild and cultivated samples, but they did deviate significantly from the expectation of a 1:1 male to female ratio. The characteristically biased sex ratio may be an incidental property of the XY sex determination system, with X-containing (female determining) pollen competing more effectively on the style than Y-containing grains.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00120263
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