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  • 1
    Electronic Resource
    Electronic Resource
    Neogene palaeontology and geochronology of the Baringo Basin, Kenya
    Amsterdam : Elsevier
    Journal of Human Evolution 14 (1985), S. 759-773 
    Details
    ISSN: 0047-2484
    Keywords: Baringo ; Kenya ; fossil vertebrates ; hominoids ; neogene ; palaeoflora ; palaeomagnetic calibration ; radiometric dating
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0047-2484(85)80058-0
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  • 2
    Electronic Resource
    Electronic Resource
    Neogene palaeontology and geochronology of the Baringo Basin, Kenya
    Amsterdam : Elsevier
    Journal of Human Evolution 14 (1985), S. 759-773 
    Details
    ISSN: 0047-2484
    Keywords: Baringo ; Kenya ; fossil vertebrates ; hominoids ; neogene ; palaeoflora ; palaeomagnetic calibration ; radiometric dating
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0047-2484(85)80058-0
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  • 3
    Electronic Resource
    Electronic Resource
    Processing of native and exotic leaf litter in two Idaho (U.S.A.) streams (1999)
    Springer
    Hydrobiologia 400 (1999), S. 123-128 
    Details
    ISSN: 1573-5117
    Keywords: exotic species ; leaf litter ; C/N ratios ; decomposition ; stream ecology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The Russian olive tree (Elaeagnus angustifolia L.) was brought to the western United States from Eurasia during the early to mid-1900s, and has since become a common member of many riparian communities in Idaho. We compared leaf chemistry and in-stream processing of Russian olive leaves (exotic) and various species of native leaves in one hardwater and one relatively softwater Idaho stream. Measurements using air-dried leaves showed that Russian olive contained the greatest concentration of nitrogen, approximately 1.6% of the dry mass, whereas the native species each contained less than 1.0% nitrogen. The C/N ratio of Russian olive was 〈30, whereas the natives each had C/N ratios greater than 40. Results from the hardwater stream indicated no difference in 30-day loss of AFDM between Russian olive and the native leaves (dogwood and aspen). In the relatively softwater stream, the Russian olive leaves were processed significantly slower than the native leaf species (cottonwood). The results indicate that a replacement of native riparian trees by exotics, such as Russian olive, may result in slower rates of leaf processing in Idaho streams but that the effect may vary among streams. When comparing the processing of native and exotic leaf litter, initial nitrogen concentrations and initial C/N ratios of the leaves did not appear to be accurate indicators of relative decay rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003703130930
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  • 4
    Electronic Resource
    Electronic Resource
    Processing of native and exotic leaf litter in two Idaho (U.S.A.) streams (1999)
    Springer
    Hydrobiologia 400 (1999), S. 123-128 
    Details
    ISSN: 1573-5117
    Keywords: exotic species ; leaf litter ; C/N ratios ; decomposition ; stream ecology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The Russian olive tree (Elaeagnus angustifolia L.) was brought to the western United States from Eurasia during the early to mid-1900s, and has since become a common member of many riparian communities in Idaho. We compared leaf chemistry and in-stream processing of Russian olive leaves (exotic) and various species of native leaves in one hardwater and one relatively softwater Idaho stream. Measurements using air-dried leaves showed that Russian olive contained the greatest concentration of nitrogen, approximately 1.6% of the dry mass, whereas the native species each contained less than 1.0% nitrogen. The C/N ratio of Russian olive was 〈30, whereas the natives each had C/N ratios greater than 40. Results from the hardwater stream indicated no difference in 30-day loss of AFDM between Russian olive and the native leaves (dogwood and aspen). In the relatively softwater stream, the Russian olive leaves were processed significantly slower than the native leaf species (cottonwood). The results indicate that a replacement of native riparian trees by exotics, such as Russian olive, may result in slower rates of leaf processing in Idaho streams but that the effect may vary among streams. When comparing the processing of native and exotic leaf litter, initial nitrogen concentrations and initial C/N ratios of the leaves did not appear to be accurate indicators of relative decay rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003703130930
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  • 5
    Electronic Resource
    Electronic Resource
    The real objective of Mendel's paper (1990)
    Springer
    Biology and philosophy 5 (1990), S. 267-292 
    Details
    ISSN: 1572-8404
    Keywords: Mendel ; theory of hybrids ; Mendelian laws ; symbolic notation ; levels of conceptualization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Philosophy
    Notes: Abstract According to the traditional account Mendel's paper on pea hybrids reported a study of inheritance and its laws. Hence, Mendel came to be known as “The Father of Genetics”. This paper demonstrates that, in fact, Mendel's objective in his research was finding the empirical laws which describe the formation of hybrids and the development of their offspring over several generations. Having found these laws (and not the laws of inheritance that he is generally credited with) he proposed a theoretical scheme involving the formation of germinal and pollen cells in hybrids and their combination in fertilization competent to explain why his laws took the form that they did. Mendel's research shows a pattern of development closely paralleling the stages of empirical investigation beginning at the level of qualitative description in common language rising through four levels of increasing abstraction and culminating in a fifth level, his simple mechanical theory. This mechanism met all the tests that a theory of this type must pass. In that respect Mendel was highly successful and this success might be the reason why he did not push his theory to a higher level, a sixth level involving the use of particulate determiners; despite this fact, Mendel was credited with having taken exactly that step.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00165254
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  • 6
    Electronic Resource
    Electronic Resource
    The real objective of Mendel's paper: A response to Falk and Sarkar's criticism (1993)
    Springer
    Biology and philosophy 8 (1993), S. 95-98 
    Details
    ISSN: 1572-8404
    Keywords: Factors of inheritance ; laws of hybridization ; laws of inheritance ; Mendel ; sheep breeding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Philosophy
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00868509
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  • 7
    Electronic Resource
    Electronic Resource
    B. A. Garetz and J. R. Lombardi. Advances in laser spectroscopy, volume 3. J. Wiley & Sons, Ltd. 1986 ISBN 0-471-90990-A £33.50 (1988)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 15 (1988), S. 183-183 
    Details
    ISSN: 0887-6134
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200150312
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  • 8
    Electronic Resource
    Electronic Resource
    Synchronized collision-cell energy ramping. Improving the quality of product-ion spectra (1992)
    New York, NY : Wiley-Blackwell
    Rapid Communications in Mass Spectrometry 6 (1992), S. 269-271 
    Details
    ISSN: 0951-4198
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The design and use of an RF-only collision-cell ramp generator is described. The generatio controls the collision energy voltage applied to the RF-only collision cell in a hybrid mass spectrometer of BEqQ geometry. The generator enables the collision-cell voltage to be increased or decreased in a linear ramp, over the full 500 V available. The start/stop functions of the ramp are synchronized under data system control to the scan of the quadrupole mass analyser. The collision-induced dissociation spectra so produced show an increase in the product ion abundance.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/rcm.1290060409
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  • 9
    Electronic Resource
    Electronic Resource
    John Myatt (1939-1993) (1993)
    New York, NY : Wiley-Blackwell
    Rapid Communications in Mass Spectrometry 7 (1993), S. 1151-1151 
    Details
    ISSN: 0951-4198
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/rcm.1290071220
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  • 10
    Electronic Resource
    Electronic Resource
    Thin layer chromatography/mass spectrometry: The advantages of tandem mass spectrometry (1992)
    New York, NY : Wiley-Blackwell
    Rapid Communications in Mass Spectrometry 6 (1992), S. 608-615 
    Details
    ISSN: 0951-4198
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The results of thin layer chromatography/mass spectrometry (TLC/MS) and thin layer chromatography/tandem mass spectrometry (TLC/MS/MS) experiments are described. Spectra from the analytes were obtained directly from the absorbent without the need for extraction prior to analysis by mass spectrometry. These results illustrate the added specificity that the tandem mass spectrometer can afford in the detection and characterization of a range of compounds separated by TLC.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/rcm.1290061005
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