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  • 1
    Electronic Resource
    Electronic Resource
    Epimination of olefins by means of 3,3-pentamethyleneoxaziridine — A one-step synthesis of aziridines (1974)
    Springer
    Chemistry of heterocyclic compounds 10 (1974), S. 1432-1439 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract 3,3-Pentamethyleneoxaziridine, which is readily obtained by treatment of cyclohexanone with ammonia and sodium hypochlorite or hydroxylamine-O-sulfonic acid, reacts with olefins with transfer of the NH group to give aziridines. Aziridines were obtained from styrene, ring- or side-chain-substituted styrenes, norbornene, and acrylonitrile in 20–70% yields. Cyclohexene is doubly aminated to give N-aminoaziridine. Nitriles are formed from phenylacetylene and diphenylacetylene as a result of rearrangement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00474323
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  • 2
    Electronic Resource
    Electronic Resource
    Untersuchungen zur Physiologie der Lymphherzen der Urodelen (1970)
    Springer
    Journal of comparative physiology 66 (1970), S. 35-44 
    Details
    ISSN: 1432-1351
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Die Pulsationen der Lymphherzen von Normaltieren von Triturus vulgaris L. und T. alpestris Laur. sind unregelmäßig und verändern sich bei Erregung der Tiere. Die Lymphherzfrequenzen sind temperaturabhängig und folgen der R-G-T-Regel. Der Q 10 beträgt bei T. vulgaris 2,5, bei T. alpestris 2,1. In Narkose oder bei Spinaltieren sinkt die Lymphherzfrequenz gegenüber der von Normaltieren ab, der Rhythmus wird regelmäßig. Bei Spinaltieren tritt homolaterale Synchronie auf. Jedes Lymphherz hat ein eigenes motorisches Zentrum im Rückenmark; die Impulse werden über Spinalnerven geleitet. Die Ergebnisse werden mit den von Anuren bekannten verglichen.
    Notes: Summary The heart beats of normal individuals of Triturus vulgaris L. and T. alpestris Laur. are irregular and can be altered by excitation of the animal. The frequencies vary with alterations in temperature according to the rule of van t'Hoff. The Q 10 was measured as 2.5 for T. vulgaris and 2.1 for T. alpestris. In anesthetized and in spinal animals the frequencies are strongly reduced and the pulsations become regular. Spinal animals show homolateral synchrony of the lymph heart beats. The motor centres, separated for each lymph heart, are situated in the spinal cord; the impulses are mediated by spinal nerves. The results are compared with those of the Anurans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00297797
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  • 3
    Electronic Resource
    Electronic Resource
    A test fluid for simulating blood flows (1984)
    Springer
    Experiments in fluids 2 (1984), S. 103-104 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00261329
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  • 4
    Electronic Resource
    Electronic Resource
    Stoffwechselverhalten bei Magenpatienten während viertägiger postoperativer vollständiger parenteraler Ernährung mit Aminosäuren und einer Glucose-Lävulose-Xylit-Kombinationslösung (1975)
    Springer
    European journal of nutrition 14 (1975), S. 324-332 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary In a clinical study we tested the following parameters: free fatty acids, beta-hydroxybutyrate, acid-base-balance, lactate, bilirubin, uric-acid, fructose, xylitole, glucose in blood and urine. The tests were executed in 9 patients who were undergoing stomac operations. The cardio pulmonary system of all patients was normal, and there was a homeostasis in water and electrolytes preoperatively. In combination with the amino-acids we received a ratio of 1/3n1/3n1 for glucose, levulose and xylitole. Totally, the patients received 0,36 g per kg body weight and per hour of carbohydrates. Beta-hydroxybutyrate, aceto-acetat, and free fatty acids show normal values under conditions of parenteral nutrition as well as lactate, uric acid, and acid-base-balance. The ratio of the different carbohydrates in serum and urine prove that the infusion time and volume were extremely favourable. The loss of carbohydrates in urine was very low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02025871
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  • 5
    Electronic Resource
    Electronic Resource
    Verbesserung der Effektivität einer parenteralen Ernährung durch zusätzliche Applikation einer Serum-Protein-Lösung (1975)
    Springer
    European journal of nutrition 14 (1975), S. 341-344 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary On 7 days — 5 postoperative — patients undergoingBillroth I orBillroth II were continously infused apparatively with an amino acid mixture of 100% and a glucose-xylitol-solution of 25% (group I). One group (group II) additionally received a serum protein solution. From the first preoperative day to the fifth day of the postoperative period we determined individual parameters in blood and urine. A decrease of serum phosphate level beginning on the first day after starting parenteral nutrition was observed. In the nitrogen balances, in total protein and albumin concentration there were no differences, but serum gamma-globulin concentration of group II was very low at the end of the parenteral nutrition period, a point which at present cannot be explained.
    Notes: Zusammenfassung Magenoperierte wurden an sieben Tagen, davon fünf postoperativ, mit Aminosäuren und Glucose-Xylit-Lösung parenteral ernährt (Gruppe I); eine Gruppe erhielt zusätzlich eine Serum-Protein-Lösung (Gruppe II). Vom ersten präoperativen bis zum fünften postoperativen Tag wurden Serum- und Urinparameter kontrolliert. Es zeigte sich unter anderem ein Abfall des Serumphosphatspiegels sofort nach Beginn der parateralen Ernährung. Bei unauffälliger Stickstoffbilanz und normalem Totalprotein und Albuminwerten war bei Gruppe II die Gamma-Globulinkonzentration im Serum am Ende der parenteralen Ernährungsperiode erniedrigt, wofür zunächst keine Erklärung gegeben werden kann.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02025873
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  • 6
    Electronic Resource
    Electronic Resource
    Direct interferometric measurement of streaming birefringence (1983)
    Springer
    Rheologica acta 22 (1983), S. 75-80 
    Details
    ISSN: 1435-1528
    Keywords: Flow visualization ; streaming birefringence ; optical interferometry ; non-Newtonian flow measurement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract The two refractive indices in the flow of a colloidal birefringent liquid are measured separately by means of a Mach-Zehnder interferometer. For a quantitative evaluation of the resulting interferograms it is not necessary to linearize the respective equations relating the refractive index distribution to the deformation velocity in the flow. Therefore it becomes possible to perform velocity measurements in the non-Newtonian flow range. An additional measurement of the mean flow rate enables one to determine the velocity field without the need of a calibration of the observed interference fringes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01679831
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  • 7
    Electronic Resource
    Electronic Resource
    Selektive Fällung von Formaldehyd mit Tetrahydro-phthalazin (1966)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 220 (1966), S. 105-109 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Mit Tetrahydro-phthalazin lÄ\t sich Formaldehyd in schwach essigsaurer Lösung quantitativ fÄllen. Es können noch 8,6 · 10−6 g Formaldehyd/ml sicher nachgewiesen werden (Grenzkonzentration 3,4 · 10−6 g/ml). Andere Aldehyde reagieren nicht. Durch Oxydation zu Formaldehyd lÄ\t sich Methanol in Wasser noch in Verdünnungen bis 1∶2000 nachweisen. Eine Herstellungsvorschrift für Tetrahydrophthalazin, ausgehend von Phthalhydrazid und o-Xylol wird angegeben.
    Notes: Summary Formaldehyde can be precipitated quantitatively with tetrahydrophthalazine in weak acetic acid solution. 8.6×10−6 g of formaldehyde/ml can be safely detected (concentration limit: 3.4×10−6 g/ml). Other aldehydes do not interfere. Methanol can be detected in aqueous solutions up to a dilution of 1∶2000 by oxidation to formaldehyde. The preparation of tetrahydro-phthalazine starting from phthalhydrazide and o-xylene is described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00516472
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  • 8
    Electronic Resource
    Electronic Resource
    Cleavage of spirooxaziridines by the action of ferrous sulfate (1991)
    Springer
    Russian chemical bulletin 40 (1991), S. 849-853 
    Details
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reaction of 2-butyl-3,3-(1′-heptyl)tetramethyleneoxaziridine with ferrous sulfate gave the N-butylamides of E- and Z-4-dodecenecarboxylic and E- and Z-5-dodecene-carboxylic acids in −1∶1 ratio. Analogously, 2-butyl-3,3-(1′-alkyl)pentamethy1-eneoxaziridines gave the N-butylamides of the corresponding E- and Z-unsaturated carboxylic acids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00958590
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  • 9
    Electronic Resource
    Electronic Resource
    Bioluminescence, chemiluminescence (1990)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 337 (1990), S. 86-96 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325727
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  • 10
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    Search for physics beyond the standard model in events with jets and two same-sign or at least three charged leptons in proton-proton collisions at $$sqrt{s}=13,{ext {TeV}} $$ (2020)
    Springer
    Details
    Publication Date: 2020-08-01
    Description: A data sample of events from proton-proton collisions with at least two jets, and two isolated same-sign or three or more charged leptons, is studied in a search for signatures of new physics phenomena. The data correspond to an integrated luminosity of $$137{,{ext {fb}}^{-1}} $$137fb-1 at a center-of-mass energy of $$13,{ext {TeV}} $$13TeV, collected in 2016–2018 by the CMS experiment at the LHC. The search is performed using a total of 168 signal regions defined using several kinematic variables. The properties of the events are found to be consistent with the expectations from standard model processes. Exclusion limits at 95% confidence level are set on cross sections for the pair production of gluinos or squarks for various decay scenarios in the context of supersymmetric models conserving or violating R parity. The observed lower mass limits are as large as $$2.1,{ext {TeV}} $$2.1TeV for gluinos and $$0.9,{ext {TeV}} $$0.9TeV for top and bottom squarks. To facilitate reinterpretations, model-independent limits are provided in a set of simplified signal regions.
    Print ISSN: 1434-6044
    Electronic ISSN: 1434-6052
    Topics: Physics
    Published by Springer
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