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  • 1
    Online Resource
    Online Resource
    New York : Academic Press
    Person(s): Hájek, Otomar
    Keywords: Differentialspiel ; Spieltheorie ; Differential games ; Differentialspiel ; Spieltheorie
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (1 online resource (xii, 266 p.)) , ill
    Series Statement: Mathematics in science and engineering v. 120
    DDC: 519.3
    RVK:
    RVK:
    Language: English
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  • 2
    Online Resource
    Online Resource
    Berlin [u.a.] : Springer
    Associated volumes
    Keywords: Differenzierbares dynamisches System ; Konferenzschrift ; Differenzierbares dynamisches System
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource
    ISBN: 9783540056744 , 9783540369967
    Series Statement: Lecture notes in mathematics 235
    DDC: 510
    Language: English
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  • 3
    Online Resource
    Online Resource
    San Diego, Calif : Academic Press
    Keywords: Rangtest ; Ranking and selection (Statistics) ; Statistical hypothesis testing ; Rangtest
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (xiv, 435 p.) , 24 cm
    Edition: 2nd ed
    ISBN: 0126423504 , 9780126423501
    Series Statement: Probability and mathematical statistics
    DDC: 519.5
    RVK:
    Language: English
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  • 4
    Online Resource
    Online Resource
    Berlin [u.a.] : Springer
    Associated volumes
    Person(s): Hájek, Otomar
    Keywords: Ebene ; Kontrolltheorie ; Regelungssystem ; Gewöhnliche Differentialgleichung ; Phasenebene ; Kontrolltheorie ; Gewöhnliche Differentialgleichung ; Ebene ; Kontrolltheorie ; Regelungssystem ; Gewöhnliche Differentialgleichung ; Phasenebene ; Kontrolltheorie ; Gewöhnliche Differentialgleichung
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource
    ISBN: 9783540535539 , 9783540468066
    Series Statement: Lecture notes in control and information sciences 153
    Language: English
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  • 5
    Online Resource
    Online Resource
    Berlin [u.a.] : Springer
    Associated volumes
    Keywords: Lokal halbdynamisches System ; Lokal halbdynamisches System
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource
    ISBN: 9783540046097 , 9783540360995
    Series Statement: Lecture notes in mathematics 90
    DDC: 515
    Language: English
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Global change biology 11 (2005), S. 0 
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Alteration of the global nitrogen (N) cycle because of human-enhanced N fixation is a major concern particularly for those ecosystems that are nutrient poor by nature. Because Sphagnum-dominated mires are exclusively fed by wet and dry atmospheric deposition, they are assumed to be very sensitive to increased atmospheric N input. We assessed the consequences of increased atmospheric N deposition on total N concentration, N retention ability, and δ15N isotopic signature of Sphagnum plants collected in 16 ombrotrophic mires across 11 European countries. The mires spanned a gradient of atmospheric N deposition from about 0.1 up to about 2 g m−2 yr−1. Mean N concentration in Sphagnum capitula was about 6 mg g−1 in less polluted mires and about 13 mg g−1 in highly N-polluted mires. The relative difference in N concentration between capitulum and stem decreased with increasing atmospheric N deposition, suggesting a possible metabolic mechanism that reduces excessive N accumulation in the capitulum. Sphagnum plants showed lower rates of N absorption under increasing atmospheric N deposition, indicating N saturation in Sphagnum tissues. The latter probably is related to a shift from N-limited conditions to limitation by other nutrients. The capacity of the Sphagnum layer to filter atmospheric N deposition decreased exponentially along the depositional gradient resulting in enrichment of the mire pore water with inorganic N forms (i.e., NO3−+NH4+). Sphagnum plants had δ15N signatures ranging from about −8‰ to about −3‰. The isotopic signatures were rather related to the ratio of reduced to oxidized N forms in atmospheric deposition than to total amount of atmospheric N deposition, indicating that δ15N signature of Sphagnum plants can be used as an integrated measure of δ15N signature of atmospheric precipitation. Indeed, mires located in areas characterized by greater emissions of NH3 (i.e., mainly affected by agricultural activities) had Sphagnum plants with a lower δ15N signature compared with mires located in areas dominated by NOx emissions (i.e., mainly affected by industrial activities).
    Type of Medium: Electronic Resource
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  • 7
    facet.materialart.
    Unknown
    Wiley-Blackwell
    Publication Date: 2014-12-20
    Description: Bryophytes dominate some ecosystems despite their extraordinary sensitivity to habitat quality. Nevertheless, some species behave differently across various regions. The existence of local adaptations is questioned by a high dispersal ability, which is thought to redistribute genetic variability among populations. Although Sphagnum warnstorfii is an important ecosystem engineer in fen peatlands, the causes of its rather wide niche along the pH/calcium gradient are poorly understood. Here, we studied the genetic variability of its global populations, with a detailed focus on the wide pH/calcium gradient in Central Europe. Principal coordinates analysis of 12 polymorphic microsatellite loci revealed a significant gradient coinciding with water pH, but independent of geography; even samples from the same fens were clearly separated along this gradient. However, most of the genetic variations remained unexplained, possibly because of the introgression from phylogenetically allied species. This explanation is supported by the small heterogeneous cluster of samples that appeared when populations morphologically transitional to S. subnites, S. rubellum , or S. russowii were included into the analysis. Alternatively, this unexplained variation might be attributed to a legacy of glacial refugia with recently dissolved ecological and biogeographic consequences. Isolation by distance appeared at the smallest scale only (up to 43 km). Negative spatial correlations occurred more frequently, mainly at long distances (up to 950 km), implying a genetic similarity among samples which are very distant geographically. Our results confirm the high dispersal ability of peatmosses, but simultaneously suggested that their ability to cope with a high pH/calcium level is at least partially determined genetically, perhaps via specific physiological mechanisms or a hummock-forming ability. We studied genetic variability of Sphagnum warnstorfii , with detailed focus to the populations growing on the wide pH/calcium gradient in Central Europe. Our results suggest an adaptive role of pH, however the main gradient remains unclear, possibly mirroring the introgression of phylogenetically allied species.
    Electronic ISSN: 2045-7758
    Topics: Biology
    Published by Wiley-Blackwell
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  • 8
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Addictive Behaviors 12 (1987), S. 285-288 
    ISSN: 0306-4603
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine , Psychology
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Addictive Behaviors 12 (1987), S. 199-203 
    ISSN: 0306-4603
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine , Psychology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    ISSN: 0584-8539
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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