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  • 1
    Electronic Resource
    Electronic Resource
    Heat treatment of wires on the basis of the high Tc superconductor YBa2Cu3Ox (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 917-918 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Ag-sheathed powder-in-tube wires on the basis of the high Tc superconductor YBa2Cu3Ox are produced by a drawing process. After cold working, the wires are not superconducting. By heat treatment at temperatures 〉900 °C, lattice defects are healed and the contact between the grains is improved. After this heat treatment the wires are slowly cooled in an O2 atmosphere in order to adjust the optimum O2 stoichiometry. The annealing temperature has a strong influence on the attainable critical current density. By annealing a wire with 420 ppm carbon content at 950 °C, jc values of 5020 A/cm2 at 4.2 K and 1130 A/cm2 at 77 K were achieved. Drastically reduced critical current densities in wires with high carbon content demonstrate the importance of a low carbon content for achieving high critical current densities in YBa2Cu3Ox .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.102451
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  • 2
    Electronic Resource
    Electronic Resource
    Higher order contributions in the synchrotron radiation spectrum of a toroidal grating monochromator determined by the use of a transmission grating : International conference on synchrotron radiation instrumentation (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 2101-2104 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The synchrotron radiation spectra of toroidal grating monochromators (TGM) working in the short wavelength VUV are often contaminated by significant amounts of higher orders. Even by the use of suitable filters they cannot completely be suppressed. Using a transmission grating behind the exit slit of the monochromator the exit beam can be dispersed and the contributions of the different orders analyzed. For the 162° TGM at the radiometric laboratory of PTB at BESSY the higher-order distributions have been quantitatively determined for two gratings of line densities of 200 and 600 l/mm at electron beam energies of 337 and 756 MeV. It is shown that at the energy of 337 MeV and the wavelength region between 5 and 45 nm the contributions of the higher orders to the detector signal are restricted to less than 10% even without the use of filters. At the energy of 756 MeV the same result can be achieved by inserting suitable filters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140836
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  • 3
    Electronic Resource
    Electronic Resource
    Economic Valuation of Varieties and Breeding Objectives (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 100 (1988), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Breeding planning and variety valuation can be supported only if weighting factors for the economically relevant performance traits are available. In plant breeding they are necessary for the calculation of selection indices as well as for the comparison of varieties and for quantifying the monetary impact of breeding progress.In this article the economic weights for the most important performance traits of sugar beet are calculated from the farmer's, the sugar factory's, and the national economy's point of view. Based upon economic weights for beet yield, sugar content, potassium, sodium, and ammo nitrogen content, a total of 19 varieties was compared with regard to physical and economic performance. The investigation shows that “best” and “worst” varieties differ in gross margin per ha by 270.— to 330.— DM.Indications were given for possibilities and limitations of the application of economic weights in breeding planning.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1988.tb00217.x
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  • 4
    Electronic Resource
    Electronic Resource
    Nonoperative Management of Biliary Obstruction (1985)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Medicine 36 (1985), S. 1-11 
    Details
    ISSN: 0066-4219
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.me.36.020185.000245
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  • 5
    Electronic Resource
    Electronic Resource
    Human gastric acid secretion following repeated doses of AG-1749 (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 3 (1989), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The effect of increasing doses (15 mg, 30 mg and 60 mg) of the substituted benzimidazole, AG-1749, on gastric acid secretion and fasting serum gastrin concentration has been studied after repeated administration to healthy volunteers.AG-1749 produced a dose-dependent and profound decrease in basal and stimulated gastric acid secretion in all volunteers, with almost total suppression at the highest dose. The extent of inhibition increased between Day 2 and Day 8 with the 15 and 30 mg doses of AG-1749. The inhibitory effect of AG-1749 appears to be fully reversible as control levels of acid output were reached 7 days after drug withdrawal.Seven days’dosing with 60 mg AG-1749 induced a more than threefold increment of fasting serum gastrin concentration, but this increase was still within the normal range. Seven days after cessation of dosing, fasting serum gastrin concentration returned to a pre-dose level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2036.1989.tb00205.x
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  • 6
    Electronic Resource
    Electronic Resource
    What are the current possibilities in treating peptic ulcer disease? (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 1 (1987), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: There are two major principles of ulcer therapy. Today, the most widely accepted drugs are those which substantially reduce aggressive factors (i.e. acid and pepsin), namely histamine H2-receptor antagonists, antimuscarinics and antacids. Less frequently applied are mucoprotective agents like colloidal bismuth compounds and sucralfate. Prostaglandins both reduce acid secretion substantially and are believed to enhance mucosal resistance. Their anti-ulcer efficacy, however, is solely explicable by their antisecretory activity. Although mucosa-strengthening agents and H2-receptor blockers have nearly identical healing rates, mucosa-strengthening agents have inconvenient dosage regimens (four times or twice daily) and are probably less effective in relieving pain. The same holds true for antacids. Prostaglandins, antimuscarinics and antacids have dose related side effects. In contrast, H2-receptor blockers are characterized by a clear mechanism of action, convenient dosage regimes, good tolerance and a low incidence of side-effects. H2-receptor antagonists are the most effective anti-ulcer drugs presently available.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2036.1987.tb00657.x
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  • 7
    Electronic Resource
    Electronic Resource
    Metabolism of GS 13005, a new insecticide (1966)
    Springer
    Cellular and molecular life sciences 22 (1966), S. 36-38 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Le métabolisme de l'insecticide GS 13005 (marqué par le C14 dans l'hétérocycle) fut étudié chez l'animal et dans la plante. Une conversion considérable de cette molécule en CO2 fut constatée dans tous les deux. En plus aucune accumulation de l'insecticide intact ou de ses produits métaboliques n'a pu être observée, ni dans la plante, ni dans l'animal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01897756
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  • 8
    Electronic Resource
    Electronic Resource
    Triazine nucleic acid interrelationship inEscherichia coli 15 arg− t − u − (1969)
    Springer
    Cellular and molecular life sciences 25 (1969), S. 353-353 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Mit Hilfe von 5-Bromuracil wurde die prinzipielle Fähigkeit vonEscherichia coli 15 arg− t − u −, Basenanaloge des Pyrimidins für die Synthese ihrer Nukleinsäuren zu verwenden, gezeigt. Ein Einbau der Triazinverbindungen Atrazin und Prometryn in die Nukleinsäuren vonE. coli 15 arg− t − u − findet nicht statt, unabhängig, ob die Mikroorganismen in komplettem oder Basen-defizitärem Nährmedium wuchsen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01899910
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  • 9
    Electronic Resource
    Electronic Resource
    Aspects biochimiques des herbicides à base de triazines (1968)
    Springer
    Cellular and molecular life sciences 24 (1968), S. 1-8 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The triazine herbicides are potent inhibitors of theHill reaction, resembling the phenylureas, acylanilides and carbamates. The inhibition of the photosynthesis by the triazines is the most obvious explanation for their mode of action in plant metabolism. Besides this there are also effects on light independent reactions where the effective concentrations are higher than those inhibiting the photosynthesis. Particularly, a positive influence of the triazines on the uptake of the nutrients by the roots was noted. Changes in the nitrogen metabolism of the plants, due to increased uptake of nitrate from the medium, result in a higher content of organic nitrogen in the plants. Several enzyme systems in plants and in micro-organisms are influenced by the triazine herbicides. Until now, the mechanism of action has not been elucidated. Concerning the phenomenon of the selectivity of the triazine herbicides, several factors may be responsible. The different abilities of the plant species to metabolize the herbicide and to translocate it to the active centres in the cells are significant from the biochemical point of view.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02136757
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  • 10
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    S. M. Braijowitsch: Karl Kautsky - ewoljuzija jego wossrenii (Book Review) (1985)
    Berlin : Periodicals Archive Online (PAO)
    Deutsche Zeitschrift für Philosophie. 33:3 (1985) 275 
    Details
    ISSN: 0012-1045
    Topics: Philosophy
    Notes: REZENSIONEN
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4085-1985-033-03-000012
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