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  • 2000-2004  (27)
  • 1985-1989  (53)
  • 1975-1979  (19)
  • 1960-1964  (16)
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  • 1
    Electronic Resource
    Electronic Resource
    Second dissociation constant and pH of N-(2-hydroxyethyl)piperazine-N'-2-ethanesulfonic acid from 0 to 50.degree. C (1989)
    s.l. : American Chemical Society
    Analytical chemistry 61 (1989), S. 1400-1405 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00188a017
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  • 2
    Electronic Resource
    Electronic Resource
    The cross-square rule for transport in electrolyte mixtures (1988)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 92 (1988), S. 1692-1695 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100317a060
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  • 3
    Electronic Resource
    Electronic Resource
    Determination of phosphorus in copper-based alloys using ion-exchange chromatography and direct-current plasma emission spectrometry (1987)
    s.l. : American Chemical Society
    Analytical chemistry 59 (1987), S. 2872-2876 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00151a009
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  • 4
    Electronic Resource
    Electronic Resource
    Functional Consequences of Altering Myocardial Adrenergic Receptor Signaling (2000)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 62 (2000), S. 237-260 
    Details
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Notes: Abstract From the ability to successfully manipulate the mouse genome has come important transgenic and gene-targeted knockout models that impact many areas of biomedical research. Genetically engineered mouse models geared toward the study of cardiovascular regulation have recently been described and provide powerful tools to study normal and compromised cardiac physiology. The genetic manipulation of the adrenergic receptor (AR) signaling system in the heart, including its regulation by desensitizing kinases, has shed light on the role of this signaling pathway in the regulation of cardiac contractility. One major finding, supported by several mouse models, is that in vivo contractility can be enhanced via alteration of myocardial AR signaling. Thus genetic manipulation of this critical receptor system in the heart represents a novel therapeutic approach for improving function of the failing heart.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.physiol.62.1.237
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  • 5
    Electronic Resource
    Electronic Resource
    Solarization; a physical control method for weeds and parasitic plants (Orobanche spp.) in Mediterranean agriculture (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 29 (1989), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary. Experiments were conducted between 1985 and 1988 to evaluate the effect of duration and time of solarization on the control of two broom rapes (Orobanche aegyptiaca Pers., O. crenata Forsk.) and other weeds common in the fields of faba bean (Vicia faba L.) and lentil (Lens culinaris Medik.) in West Asia. Solarization was performed by applying clear polyethylene sheet to the soil for 0, 10, 20, or 40 days in 1985/86, 0, 30, or 40 days in 1986/87 and 0, 20, 30, 40 or 50 days in 1987/88 during the hot season (July and August) and for 50 days immediately before sowing during milder weather (September and October) in 1986/87. Best control was obtained with solarization for 30–50 days in the hot season. Maximum soil temperature under polyethylene at 5 cm was 55°C in 1985, 48°C in 1986 and 57°C in 1987. Broomrape dry weight decreased in the first experiment by more than 90% in both faba bean and lentil fields. Solarization controlled broom-rape and other weeds in the following two seasons when the soil was left undisturbed during the season of the treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1989.tb01310.x
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  • 6
    Electronic Resource
    Electronic Resource
    EINIGE BEOBACHTUNGEN ZUR VERÄNDERUNG DER VERUNKRAUTUNG WÄHREND MEHRJÄHRIGEN GETREIDEBAUS UND VERSCHIEDENARTIGER UNKRAUTBEKÄMPFUNG (1964)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 4 (1964), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Zusammenfassung. Auf einem stark verunkrauteten Feld (guter Lehmboden] wurde die Veränderung der Unkrautflora im Verlauf von 3 Jahren bei verschiedenartiger Unkrautbekämpfung (keine Unkrautbekämpfung; zweimal Blindeggen sowie Eggen im 3-Blattstadium des Getreides; chemische Unkrautbekämpfung mit DNOC) beobachtet In diesem Zeitraum ging die Gesamtverunkrautung als Folge des guten Getreidestandes auch in den Parzellen ohne Unkrautbekämpfung erheblich zurück.Durch jährlich wiederholte, intensive mechanische Unkrautbekämpfung wurde im Verlauf von 3 Vegetationsperioden die Gesamtverunkrautung gegenüber der Kontrolle etwas, der Bestand einzelner Unkrautarten wie Alopecunus myosuroides, Sinapis arvensis und Galeopsis tetrahit erheblich vermindert. Der prozentuale Anteil der grasartigen Unkräuter an der Gesamtverunkrautung entsprach bei Versuchsende dem der unbearbeiteten Parzellen.Durch chemische Bekämpfung mit DNOC wurden im Vergleich zur unbehandelten Kontrolle Sinapis arvensis, Palygonum convolvulus, Galium aparine und die Gesamtverunkrautung stark reduziert, Alopecurus myosuroides dagegen stark gefördert. Das Artenverhältnis änderte sich zugunsten der grasartigen Unkräuter.Some observations on changes in weed populations under continuous cereal cropping and with différent methods of weed control
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1964.tb00308.x
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  • 7
    Electronic Resource
    Electronic Resource
    Untersuchungen zur Keimungsbiologie von sechs tropischen Segetalarten (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 28 (1988), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Für die 6 untersuchten tropischen Segetalarten Ageratum conyzoides, Blechum brownei, Crassocephalum crepidioides, Mikania micrantha, Paspalum conjugatum und P. paniculatum lag die untere Temperaturgrenze bei der Keimung im Bereich von 10 bis 15(20)°C, die maximale bei ≤ 40°C, das Optimum zwischen 20 und 35°C. Ageratum conyzoides und C. crepidioides hatten etwas geringere Ansprüche an die Keimtemperatur als die übrigen Arten, was ihre vergleichsweise stärkere Verbreitung in Höhenlagen erklärt. Die Keim-temperaturen der beiden Vertreter aus den gemässigten Breiten, Alopecurus myosuroides und Chenopodium album, lagen bei 5 (Minimum), 15–25 (Optimum) bzw. 40°C (Maximum). Die Keimung von A. conyzoides, C. crepidioides und M. micrantha wurde bereits ab einem osmotischen Potential von - 1 bar negativ beeinflusst. Bei - 4,7 bar keimte von den 6 tropischen Arten nur noch P. paniculatum in geringem Umfang, während AL myosuroides und Ch. album bis -4,7 bar nicht beeinträchtigt wurden. Nach einjähriger trockener Lagerung keimten alle 6 tropischen Arten nur unter Lichteinfluss. Nach 20 Monaten keimten C. crepidioides und P. paniculatum auch in Dunkeln.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1988.tb00784.x
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  • 8
    Electronic Resource
    Electronic Resource
    Genetic variation in DLG5 is associated with inflammatory bowel disease (2004)
    [s.l.] : Nature Publishing Group
    Nature genetics 36 (2004), S. 476-480 
    Details
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Crohn disease and ulcerative colitis are two subphenotypes of inflammatory bowel disease (IBD), a complex disorder resulting from gene-environment interaction. We refined our previously defined linkage region for IBD on chromosome 10q23 and used positional cloning to identify genetic variants in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/ng1345
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  • 9
    Electronic Resource
    Electronic Resource
    Review of electrolytic conductance standards (1987)
    Springer
    Journal of solution chemistry 16 (1987), S. 985-997 
    Details
    ISSN: 1572-8927
    Keywords: Aqueous solution ; cell constant ; conductance ; electrolytic conductivity ; potassium chloride ; primary ; resistance ; resistivity, secondary, standards, and temperature scale
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Measurements of aqueous electrolytic conductance are performed routinely in a variety of disciplines and industries. Conductivity is a measure of the ionic content in solution and thus has applications in pharmaceuticals, power plants, rainwater, lake surveys, and oceanography, to name a few. A thorough review of the measurement of and standards for aqueous electrolytic conductance is herein presented. At present, the most precise and accurate standards have been set forth by the International Organization of Legal Metrology (OIML), and have been adopted by most other standards organizations. However, the uncertainty assigned to these standards, especially the secondary standards, is somewhat larger than would be expected from the physical aspects of the measurement. Several changes in the units and measurement scales, including temperature, volume, molar mass, resistance, and concentration obfuscate the accuracy of these standards. In addition to the review, research is proposed, using a conductance cell with variable length, to establish new standards for aqueous electrolytic conductance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00652583
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  • 10
    Electronic Resource
    Electronic Resource
    Determination of the absolute specific conductance of primary standard KCl solutions (1989)
    Springer
    Journal of solution chemistry 18 (1989), S. 515-528 
    Details
    ISSN: 1572-8927
    Keywords: Absolute standard ; conductivity cell ; demal ; electrolyte ; molality ; potassium chloride ; primary standard ; specific conductance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A determination of the absolute specific conductance of KCl solutions is demonstrated. The measurement is based on the conductance cell with a well defined geometry, having a difference in the removable center tube of accurately measured dimensions. The specific conductance of the solution is obtained from the measured resistances of the cell with and without the center tube and the measured l/A ratio of the center tube. Specific conductances obtained using the cell agree with the previously accepted standards for 0.1 demal and 0.01 demal solutions within 0.02%. Results are also presented for solutions based on molality. The temperature control, bridge, and detector technology used to obtain results of this accuracy are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00664234
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