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  • 1
    facet.materialart.
    Unknown
    Search for neutral MSSM Higgs bosons at LEP (2006)
    Springer
    Details
    Publication Date: 2006-07-18
    Print ISSN: 1434-6044
    Electronic ISSN: 1434-6052
    Topics: Physics
    Published by Springer
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    PAPER CURRENT
  • 2
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    Software-Infrastruktur. Von analytischer Perspektive zu konstruktiver Orientierung (2021)
    Hamburg University Press
    Details
    Publication Date: 2024-04-14
    Description: The term "infrastructure" is used here for information systems. Software applications are related to other software and consist of software of different origins. In their networking, software is under the limited influence of different actors. Nowadays, software development is mainly concerned with further development, parameterization and configuration. Software infrastructure development must therefore deal with existing software and be carried out in complex contexts, taking into account a sharply increased number of interests and opportunities for interaction. Interference is recognized as a particular problem in infrastructure development. The proposed interference management addresses this. The core point of the extended evolutionary software development process is the continuous development of the relevant components and actors of the infrastructure against the background of our own development project, taking into account the various interests.
    Keywords: Software Infrastructure ; Infrastructure ; Technical System ; Large System ; Software Development ; CommSy ; thema EDItEUR::U Computing and Information Technology::UM Computer programming / software engineering ; thema EDItEUR::U Computing and Information Technology::UM Computer programming / software engineering
    Language: German
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    E-BOOK
  • 3
    Electronic Resource
    Electronic Resource
    Determination of Traces of Potassium in Reagent Chemicals by Sodium Tetraphenylboron and Sodium Cobaltinitrite (1957)
    s.l. : American Chemical Society
    Analytical chemistry 29 (1957), S. 939-941 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60126a022
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Chlorination of the Acetylenic Alcohols Derived from Acetone1 (1940)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 62 (1940), S. 1368-1371 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01863a011
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Electron and X-Ray Diffraction of δ-VOPO〈sub〉4〈/sub〉 (2000)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 321-324 (Jan. 2000), p. 960-964 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/04/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.321-324.960.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of oxygen and salt on haemolymph oxygen binding in the brine shrimp Artemia franciscana (1994)
    Springer
    Marine biology 118 (1994), S. 263-269 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The oxygen-binding properties of haemolymph from laboratory-reared Artemia franciscana were investigated in vitro. Adult female brine shrimp without eggs were acclimated to seven different combinations of salinity and oxygen. The oxygen affinity (P50) of unprocessed haemolymph rises with acclimation oxygen partial pressure (PO2) up to normoxic values, after which no influence of oxygen occurs. The increase in P50 with acclimation PO2 can be explained by the change in proportion of each of three different haemoglobins in the haemolymph. Salinity acclimation has no effect on haemolymph P50. The effects of the different major salts [NaNO3, NaCl, Ca(NO3)2, Mg(NO3)2], pH, and the metal-binding ligand EGTA on the oxygen-binding properties of buffered haemolymph (of shrimp acclimated to 10‰ salinity) were also studied. Little or no effect of these salts could be found. A small Bohr effect (pH 6.5 to 9.1, ϕ=-0.11) was noted. Addition of EGTA caused a significant decrease of the oxygen affinity at concentrations up to 50 mmoll-1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00349793
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  • 7
    Electronic Resource
    Electronic Resource
    Regulation of respiration during juvenile development of Sepia officinalis (Mollusca: Cephalopoda) (1988)
    Springer
    Marine biology 97 (1988), S. 365-371 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A culture of juvenile Sepia officinalis L. was kept during summer 1985 in the aquaria of the “Station Marine”, Wimereux, France. During the first four months of juvenile development, oxygen consumption under increasing hypoxia was measured with a closed respirometer. The experiments revealed a high regulatory capacity of juvenile S. officinalis. The critical oxygen concentrations were calculated and their ontogenetical evolution was studied. The critical oxygen concentration increased with increasing development. A linear relationship emerged between the critical oxygen concentration and the logarithm of the wet weight [COc (mg O2 l-1)=-0.393+0.893×log10(W w )]. The decreasing regulatory capacity of growing S. officinalis is most probably related to adaptations to a changing ecological environment during development. Another possibility is a physiological change, most probably related to the shift from embryonic to adult hemocyanin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00397767
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  • 8
    Electronic Resource
    Electronic Resource
    Respiration of Sepia officinalis during embryonic and early juvenile life (1985)
    Springer
    Marine biology 90 (1985), S. 35-39 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Adult Sepia officinalis L. were caught in June 1984, in the coastal waters of Wimereux (France). Deposition of the eggs took place in the seawater aquaria of the “Station Marine”. The oxygen consumption of S. officinalis was measured during embryonic and juvenile development. Aerobic metabolism occurs as soon as the early embryonic Stage 21. Oxygen diffuses through the initially thick egg shell; the oxygen level in the perivitelline liquid reaches a maximal value just before hatching (116.7±6.9 mm Hg). Hatchings display only a slight increase in oxygen consumption compared to embryos in the last stage of development. Respiration experiments with 40 d old juveniles showed that oxygen consumption increases with temperature, but is not affected by photoperiod. Experiments under increasing hypoxia revealed that S. officinalis juveniles are good regulators and maintain a constant oxygen consumption in the range of 4 to 7 mg O2l-1. Juveniles successfully recover from an hypoxic stress of 2 mg O2l-1 maintained for 1 h. This suggests that the respiratory pigments (pre-hemocyanins) of 40 d-old juveniles have a high oxygen affinity and/or that these juveniles have the ability to adapt to anaerobic conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00428212
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  • 9
    Electronic Resource
    Electronic Resource
    Stoffwechselprodukte von Mikroorganismen (1976)
    Springer
    Archives of microbiology 107 (1976), S. 143-160 
    Details
    ISSN: 1432-072X
    Keywords: New nucleoside-peptide antibiotic ; Chitin biosynthesis ; Structure elucidation ; Mass spectrometry ; Streptomyces tendae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Der Streptomycet Tü 901, Streptomyces tendae, bildet ein antifungisch wirkendes Nukleosid-Antibioticum, Nikkomycin. Als Angriffsort kommt die Chitinsynthese in Frage. Mit Hilfe der Massenspektrometrie und des chemischen Abbaus konnten Uracil, eine Aminohexuronsäure und eine neue, einen Pyridinring enthaltende Aminosäure nachgewiesen werden.
    Notes: Abstract From the fermentation broth of Streptomyces tendae Tü 901 a substance was isolated, which inhibits the growth of several fungi. The new antibiotic affects the chitchin biosynthesis. Its structure was identified by mass spectrometry of the products obtained after chemical degradation. Nikkomycin is a nucleoside-peptide antibiotic consisting of uracil, an amino hexuronic acid and a new amino acid containing a pyridin ring.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00446834
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of hematin on the activities of nitrite reductase and catalase in lactobacilli (1988)
    Springer
    Archives of microbiology 149 (1988), S. 220-224 
    Details
    ISSN: 1432-072X
    Keywords: Nitrite reductase ; Catalase ; Hematin activation ; Lactobacillus plantarum ; L. curvatus ; L. sake ; Starter cultures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The effect of the addition of hematin on the activities of nitrite reductase and catalase was studied with cell suspensions of strains of lactobacillus species. In cells of Lactobacillus plantarum grown under aerobic or anaerobic conditions nitrite reductase was present. This activity was not exhibited by cells of L. curvatus and only rarely by L. sake. In addition, catalase activity was detected in aerobically grown cells only, with all strains of L. plantarum and L. sake; again L. curvatus was devoid of this activity. Ammonia was formed as the main product of nitrite reduction by L. plantarum. With lactate as the electron donor, the end products of carbohydrate catabolism were carbon dioxide, acetoin and acetate. The activities of nitrite reductase and catalase in strains of lactobacillus species may be used for optimizing the quality of starter cultures applied for the production of raw sausages.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00422008
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