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  • 1
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 58 (1980), S. 359-363 
    ISSN: 1432-1440
    Keywords: Diuretic therapy ; Secondary hyperlipoproteinemia ; Low density lipoproteins ; High density lipoproteins ; Apoproteins B, A1 and A2 ; Diuretika ; Sekundäre Hyperlipoproteinämie ; Lipoproteine niedriger Dichte ; Lipoproteine hoher Dichte ; Apoproteine B, A1 und A2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zur Abklärung von Ausmaß und Pathogenese der Diuretikainduzierten sekundären Hyperlipoproteinämie wurden bei 12 Probanden die Serumlipide und -lipoproteine, die Apoproteine A1, A2 und B sowie die lipolytischen Enzyme Lipoproteinlipase und hepatische Triglyzeridlipase nach einer vierwöchigen Placeboperiode und nach 6 Wochen Behandlung mit Chlorthalidon untersucht. Außer einem signifikanten Anstieg der atherogenen low density Lipoproteine (LDL), (der LDL-Cholesteringehalt nahm um 18% zu,P〈0,05) waren keine signifikanten Lipoproteinveränderungen faßbar. Insbesondere blieb die high density Lipoprotein-Konzentration sowohl gemessen am HDL-Cholesteringehalt wie an den beiden Apoproteinen A1 und A2 nahezu unverändert. Der leichte statistisch nicht signifikante Anstieg der Serumtriglyzeride war begleitet von einer ebenso wenig signifikanten Zunahme der Aktivität der Lipoproteinlipase und der hepatischen Triglyzeridlipase. Pathogenetisch dürfte der sekundären Hyperlipoproteinämie unter Chlorthalidon am ehesten eine Abbaustörung der LDL zugrunde liegen.
    Notes: Summary In order to study the degree and pathogenic aspects of the secondary hyperlipoproteinemia in patients under diuretic therapy we measured serum lipids, lipoproteins and the apoproteins A1, A2 and B in 12 adults after a 4 weeks placebo period and 6 weeks of treatment with chlorthalidon. There was a significant increase in atherogenic low density lipoproteins (LDL), (18%,P〈0.05) whereas the high density lipoprotein-cholesterol, Apo A1 and A2 levels were not significantly altered. The same was true for the total serum triglyceride- and the very low density lipoprotein- and LDL-triglyceride levels. The activity of lipoprotein lipase and hepatic triglyceride lipase was slightly but not significantly increased. A delayed LDL-catabolism seems to be the most probable pathogenic mechanism underlying the Chlorthalidon-induced hyperlipoproteinemia.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 39 (1982), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: α-d-Mannosidase (EC 3.2.1.24.) was purified to homogeneity from adult rat brain. The enzyme, of apparent molecular weight 397,000, appears to be formed of subunits of molecular weight 120,000 made of two protomers (62,000) bound by disulfide bridges. Isoelectric focusing gives two bands, of pi 5.40 and 5.15. Both isoenzymes seem to have the same pH curve (a small peak of activity at pH 4.5 and a maximum of activity around pH 6.0). These two isoenzymes are immunologically related.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 16 (1983), S. 599-605 
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A method of measuring the difference between the lattice parameter of a region of an unknown sample and that of a region of a standard reference crystal to a sensitivity of 1 part in 109 is presented. Problems inherent in multiple-beam arrangements due to sample strains and non-uniformity have been overcome by the use of a new double-source arrangement in which the two X-ray beams sample the same spot on a crystal under study. Ways of identifying and preventing errors from significant mechanical and thermal effects arising in the sensitivity region explored are indicated.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 33 (1984), S. 39-47 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Es werden methodische numerische Experimente mit einem nichttrivialen 10-Flächen-Vorhersagemodell in einer zonalen Ebene ausgeführt, um damit die Wirksamkeit einer Normalmoden-Initialisierungsmethode für eine „Nestsituation ohne Rückkopplung” aufzuzeigen. Die Ergebnisse, dargestellt im Modenraum und im physikalischen Raum, weisen aus, daß die angewendete Methode im gewünschten Sinne erfolgreich ist und eine wesentliche Verbesserung (z.B. der Formierung des Vertikalbewegungsfeldes) vor allem für den Kürzestfristzeitraum nach sich ziehen kann.
    Notes: Summary Methodic numerical experiments with a non-trivial 10-level prediction model in a zonal plane are carried out in order to demonstrate the efficiency of a normal mode initialization method for an one-way nested situation. The results demonstrated in the mode space and the physical space support the approach to be promising, particularly in the early stage of the forecast when the vertical motion field is developing.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A physiologically based steady-state model of whole leaf photosynthesis (WHOLEPHOT) is used to describe net photosynthesis daily time courses in Prunus armeniaca. Net photosynthesis rates are calculated in response to incident light intensity, leaf temperature, air carbon dioxide concentration, and leaf diffusion resistance measured at five minute intervals. The steady-state calculations closely approximate the observed net photosynthesis rates for a broad range of weather conditions and leaf stomatal behavior.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A physiologically based steady-state model of whole leaf photosynthesis (WHOLEPHOT) is used to analyze observed net photosynthesis daily time courses of soybean, Glycine max (L.) Merr., leaves. Observations during two time periods of the 1978 growing season are analyzed and compared. After adjustment of the model for soybean, net photosynthesis rates are calculated with the model in response to measured incident light intensity, leaf temperature, air carbon dioxide concentration, and leaf diffusion resistance. The steady-state calculations closely approximate observed net photosynthesis. Results of the comparison reveal a decrease in photosynthetic capacity in leaves sampled during the second time period, which is associated with decreasing ability of leaves to respond to light intensity and internal air space carbon dioxide concentration, increasing mesophyll resistance, and increasing stomatal resistance.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of plant growth regulation 3 (1984), S. 1-8 
    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The natural occurrence of jasmonic acid and its methyl ester in plants has been studied using different methods such as GC, GC-MS, HPLC, radioimmunoassay, and bioassay. Jasmonic acid was detected in several Leguminosae plants and a number of species belonging to nine other Angiospermae families. Highest amounts occurred in fruit parts, especially the immature pericarp, but it was found also in flowers and vegetative plant parts, e.g. leaves, stems, and germs. Young apple fruits contain both jasmonic acid and methyl jasmonate, and in Douglas fir, the only Gymnospermae species studied, only the methyl ester could be detected. Jasmonic acid is discussed as an endogenous plant growth regulator widely distributed in higher plants.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 54 (1984), S. 205-219 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Summary Using Hamilton's principle the non-linear boundary value problem for lateral buckling of a cantilever beam subjected to a follower time-independent bending moment is derived. The stability of the resulting state of equilibrium is studied. The influence of external and internal damping on the critical load is discussed in detail.
    Notes: übersicht über das Prinzip von Hamilton wird das nichtlineare Randwertproblem eines kippenden Kragträgers hergeleitet, der durch ein mitgehendes, zeitunabhängiges Endmoment belastet wird. Die Stabilität des sich einstellenden Gleichgewichtszustandes wird untersucht. Der Einflu\ sowohl äu\erer als auch innerer Dämpfung auf die kritische Last wird eingehend diskutiert.
    Type of Medium: Electronic Resource
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