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  • 1
    Book
    Book
    Current measurements in the western Atlantic (1972)
    Details Availability
    Type of Medium: Book
    Pages: [14] S
    Series Statement: Reference
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    The Determination of Distance by Echolocating Bats (1964)
    [s.l.] : Nature Publishing Group
    Nature 201 (1964), S. 544-546 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is thoroughly established that bats of the family Vespertilionidae navigate and seek their prey by means of echolocation1,2. Conceivably, a bat could intercept a flying insect without measuring how far away it is: by merely sensing the direction to the insect, the bat might fly a collision ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/201544a0
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  • 3
    Electronic Resource
    Electronic Resource
    Correlated Orientation Sounds and Ear Movements of Horseshoe Bats (1962)
    [s.l.] : Nature Publishing Group
    Nature 196 (1962), S. 1185-1186 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MOST of the bats which rely on echo-location have iVJL relatively large and complex external ears compared with those of other mammals. Some of the Microchiroptera, especially the family Vespertil-ionidae, hold their ears in a virtually fixed position relative to the head when they are active, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1961185a0
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  • 4
    Electronic Resource
    Electronic Resource
    Nonadiabatic processes in condensed matter: semi-classical theory and implementation
    Amsterdam : Elsevier
    Computer Physics Communications 63 (1991), S. 494-522 
    Details
    ISSN: 0010-4655
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0010-4655(91)90272-M
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  • 5
    Electronic Resource
    Electronic Resource
    Contributions from different microbial processes to N2O emission from soil under different moisture regimes (1996)
    Springer
    Biology and fertility of soils 22 (1996), S. 331-335 
    Details
    ISSN: 1432-0789
    Keywords: Acetylene ; Denitrification ; Inhibitors ; Nitrification ; Oxygen ; Waterlogging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Nitrous oxide emissions from a sandy-loam textured soil wetted to matric potentials of either-1.0 or-0.1 kPa were determined in laboratory experiments in which the soil was incubated in air (control), air plus 10 Pa C2H2 (to inhibit nitrification), 100 kPa O2 (to suppress denitrification), 10 kPa C2H2 (to inhibit N2O reduction to N2 in denitrification) or following autoclaving. The total N2O production, consumption and net N2O emission from the soils together with the contributions to N2O emission from different processes of N2O production were estimated. The rate of N2O production was significantly greater in the wetter soil (282 pmol N2O g-1 soil h-1) than in the drier soil (192 pmol N2O g-1 soil h-1), but because N2O consumption by denitrifiers was also greater in the wetter soil, the net N2O emissions from the wetter and the drier soils did not differ significantly. Non-biological sources made no significant contribution to N2O emission under either moisture regime and biological processes other than denitrification and nitrification made only a small contribution (1% of the total N2O production) in the wetter soil. Denitrifying nitrifiers were the predominant source of N2O emitted from the drier soil and other (non-nitrifying) denitrifiers were the predominant source of N2O emitted from the wetter soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00334578
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  • 6
    Electronic Resource
    Electronic Resource
    Characterization of immature embryos of interior spruce by SDS-PAGE and microscopy in relation to their competence for somatic embryogenesis (1989)
    Springer
    Plant cell reports 8 (1989), S. 285-288 
    Details
    ISSN: 1432-203X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract SDS-PAGE analysis of total proteins from cotyledonary embryo explants reveals that their competence to form somatic embryos is limited to a specific stage of development prior to the accumulation of storage proteins. When protein profiles of embryo explants of different open pollinated families from the same collection date are compared, there is a close relationship between the absence of storage proteins and their ability to produce embryogenic callus. In addition, the appearance of storage proteins in embryos from subsequent collections is associated with their loss of competence. Light microscopy combined with staining for total protein demonstrates that competent immature embryos have cotyledons but do not contain protein bodies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00274131
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  • 7
    Electronic Resource
    Electronic Resource
    Quantitative trait loci influencing β-glucan content in oat (Avena sativa, 2n=6x=42) (2000)
    Springer
    Theoretical and applied genetics 101 (2000), S. 1039-1048 
    Details
    ISSN: 1432-2242
    Keywords: Key words Oat ; QTL analysis ; β-glucan ; Oil content ; Coupling-phase QTL
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The β-glucan content of oat grain is of inter-est due to its positive human health role as a dietary component influencing serum cholesterol levels and its relation to the energy intake of livestock feed. Two recombinant inbred populations sharing a common parent (Kanota × Ogle and Kanota × Marion), and containing 137 individual lines each, were used to identify genomic regions that influence the β-glucan content in cultivated oat. Single-factor ANOVA, a backward elimination process, simple interval mapping (SIM) and simplified composite interval mapping (sCIM) were used to identify quantitative trait loci (QTLs). Regions on linkage groups 11 and 14 of the hexaploid oat RFLP map influenced β-glucan levels in both populations and over environments. Other genomic regions were identified whose effects varied depending on the genetic background, but were significant over measurements for a given population. Kanota and Ogle exhibit similar β-glucan levels and each parent contributed about the same number of positive β-glucan alleles in the Kanota × Ogle cross. Marion is higher in β-glucan content than Kanota and contributed all of the positive alleles in the Kanota × Marion cross. Three of the β-glucan QTL regions identified have been previously implicated as having a significant influence on the groat oil content in oat. These correlated QTL regions were either in coupling phase, with a region from one parent having the same effect on both traits, or were in repulsion phase. Identification of coupling- and repulsion-phase QTL regions for β-glucan and oil content facilitates the use of markers in manipulating these traits in oat breeding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051578
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  • 8
    Electronic Resource
    Electronic Resource
    Laboratory and field tests with the synthetic sex pheromone of threeMatsucoccus 1 pine bast scales (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 89-102 
    Details
    ISSN: 1573-1561
    Keywords: Matsucoccus resinosae ; M. thunbergianae ; M. matsumurae ; Coccoidea ; Margarodidae ; scale insects ; pine bast scales ; sex pheromone ; (2E,4E)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one ; matsuone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Matsunone, (2E,4E)-4.6,10,12-tetramethyl-2,4-tridecadien-7-one, is the primary sex pheromone ofMatsucoccus resinosae, M. thunbergianae, andM. matsumurae. The synthetic compound was tested in the laboratory and in field tests with all three species, and significantly more males responded to synthetic matsuone than to controls. The attraction of synthetic matsuone to males in field tests was not significantly different from that of virgin females at the same matsuone release rate. An analog of matsuone previously shown to be biologically active was also tested in the laboratory withM. resinosae andM. thunbergianae, and field tested withM. resinosae. The active analog required a dose approximately 100 times greater than matsuone to yield maximum laboratory bioassay response, and in field tests, attraction was not significantly different from controls at doses at which matsuone was significantly attractive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994424
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  • 9
    Electronic Resource
    Electronic Resource
    Book review (1994)
    Springer
    Journal of chemical ecology 20 (1994), S. 815-817 
    Details
    ISSN: 1573-1561
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02059615
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  • 10
    Electronic Resource
    Electronic Resource
    Association of a major groat oil content QTL and an acetyl-CoA carboxylase gene in oat (1999)
    Springer
    Theoretical and applied genetics 98 (1999), S. 884-894 
    Details
    ISSN: 1432-2242
    Keywords: Key words Oat ; Oil content ; Acetyl-CoA carboxylase ; Molecular markers ; Candidate gene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Oat groats are unique among cereals for the high level and the embryo-plus-endosperm localization of lipids. Genetic manipulation of groat quality traits such as oil is desired for optimizing the value of oat in human and livestock diets. A locus having a major effect on oil content in oat groats was located on linkage group 11 by single-factor analysis of variance, simple interval mapping and simplified composite interval mapping. A partial oat cDNA clone for plastidic acetyl-CoA carboxylase (ACCase), which catalyzes the first committed step in de novo fatty acid synthesis, identified a polymorphism linked to this major QTL. Similar QTL and ACCase locus placements were obtained with two recombinant inbred populations, ‘Kanota’בOgle’ (KO) and ‘Kanota’בMarion’ (KM), containing 137 and 139 individual lines, respectively. By having a common parent these populations provide biological replication of the results in that significant genomic regions should be evident in analyses of multiple cross combinations. The KO population was mapped with 150 RFLP loci distributed over the genome and was grown in five diverse environments (locations and years) for measurement of groat oil content. The KM population was mapped with 60 RFLP loci and grown in three environments. The QTL linked to AccaseA on linkage group 11 accounted for up to 48% of the phenotypic variance for groat oil content. These results provide strong support for the hypothesis that ACCase has a major role in determining groat oil content. Other QTLs were identified in both populations which accounted for an additional 10–20% of the phenotypic variance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051147
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