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  • 1
    Electronic Resource
    Electronic Resource
    Treatment with allyl alcohol selects specifically for mutants of Clostridium acetobutylicum defective in butanol synthesis (1986)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 36 (1986), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Treatment of Clostridium acetobutylicum with allyl alcohol allowed the selection of mutants which were unable to produce n-butanol, whereas the synthesis of acetone and ethanol was unaffected. Enzymatic investigations revealed that all mutant strains were devoid of butyraldehyde dehydrogenase or showed a very low activity of this enzyme as compared to the wild type.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1986.tb01670.x
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  • 2
    Electronic Resource
    Electronic Resource
    Book review (1987)
    Springer
    Journal of applied electrochemistry 17 (1987), S. 1319-1320 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01023616
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  • 3
    Electronic Resource
    Electronic Resource
    Improvement of current efficiency in the cathodic formation of metal powders (1985)
    Springer
    Journal of applied electrochemistry 15 (1985), S. 471-472 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616004
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  • 4
    Electronic Resource
    Electronic Resource
    Experimentelle Rekonstruktion der Orbita beim Schaf mit biodegradablen Implantaten (1998)
    Springer
    Mund-, Kiefer- und Gesichtschirurgie 2 (1998), S. S117 
    Details
    ISSN: 1434-3940
    Keywords: Schlüsselwörter Orbitarekonstruktion ; Resorbierbare Implantate ; Polylaktat ; Key words Orbital reconstruction ; Biodegradable implants ; Polylactide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In a complex animal model in sheep, polydioxanone (PDS®) and polylactic membranes were used for the reconstruction of large orbital-wall defects. In a long-term experiment over 1 year, polylactic implants alone showed the best performance as compared with combinations involving autogenous bone grafts and titanium miniplate fixation. As soon as these polylactic implants are approved for human surgery, they will be used to solve the still challenging problem of anatomical reconstruction of large comminuted fractures of more than one orbital wall.
    Notes: Zusammenfassung In einem experimentellen Modell wurden biodegradierbare Membranen aus Polydioxanon (PDS ® ) resp. Polylaktat zur Rekonstruktion großer Orbitawanddefekte bei Schafen verwendet. Im Langzeitversuch über ein Jahr zeigten diejenigen Rekonstruktionen die besten Resultate, bei welchen ausschließlich biodegradierbare Implantate aus Polylaktat zur Anwendung kamen. Bei gleichzeitiger Verwendung von autologen Knochentransplantaten und Titan-Miniplatten-Osteosynthesen war die anatomische Form der rekonstruierten Orbita weniger zuverlässig gewährleistet. Es darf erwartet werden, dass die klinische Zulassung der Polylaktat-Implantate die chirurgische Wiederherstellung ausgedehnter Trümmerfrakturen mehrerer Orbitawände wesentlich erleichtern wird und zu vorhersehbaren, anatomischen Rekonstruktionen führt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014455
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  • 5
    Electronic Resource
    Electronic Resource
    Free expansion of a Bose–Einstein condensate from an Ioffe–Pritchard magnetic trap (1998)
    Springer
    Applied physics 67 (1998), S. 719-722 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 03.75.Fi; 05.30.Jp; 32.80.Pj
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: 5 rubidium-87 atoms released from an Ioffe–Pritchard magnetic trap is investigated experimentally. The expansion dynamics depend only on the trap frequencies, which are determined independently. The data are in good agreement with the expected expansion of a condensate, and are clearly distinct from the behaviour of a classical gas in the hydrodynamic regime.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003400050571
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  • 6
    Electronic Resource
    Electronic Resource
    Controlled generation of single photons from a strongly coupled atom-cavity system (1999)
    Springer
    Applied physics 69 (1999), S. 373-377 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 32.80.Qk; 42.50.Ct; 42.65.Dr
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We propose a new method for the generation of single photons. Our scheme will lead to the emission of one photon into a single mode of the radiation field in response to a trigger event. This photon is emitted from an atom strongly coupled to a high-finesse optical cavity, and the trigger is a classical light pulse. The device combines cavity-QED with an adiabatic transfer technique. We simulate this process numerically and show that it is possible to control the temporal behaviour of the photon emission probability by the shape and the detuning of the trigger pulse. An extension of the scheme with a reloading mechanism will allow one to emit a bit-stream of photons at a given rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003400050822
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  • 7
    Electronic Resource
    Electronic Resource
    Rekombinationsverluste und IHR einfluss auf das Auflösungsvermögen von p-i-n-Zählern Sowie einige Messmethoden für τ, μ und die Homogenität (1966)
    Springer
    Czechoslovak journal of physics 16 (1966), S. 697-722 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Zusammenfassung Eine allgemeine Gleichung der Rekombinationsverluste in p-i-n-Detektoren wurde abgeleitet, die bei Kenntnis der Lebensdauer der Ladungsträger in der i-Schicht gestattet, diese Rekombinationsverluste zu berechnen. Für einzelne Fälle von Teilchenbahnen wurden vereinfachte Beziehungen gefunden. Das Impulsspektrum bei Querbestrahlung wurde theoretisch abgeleitet und experimentell nachgewiesen. Einige Meßmethoden der Lebensdauer und Beweglichkeit von Ladungsträgern in p-i-n-Detektoren wurden auf Grund der Spannungsabhängigkeit der Rekombinationsverluste und der Durchlaufzeit entwickelt. Erstaunlich sind die gefundenen niedrigen Werte der Lebensdauern unter 2 μs, die auf Rekombinationszentren in den Silizium-i-Schichten hinweisen. Die Rekombinationsverluste wurden auch zur Messung der Homogenität von p-i-n-Detektoren herangezogen. Es wurden die statistischen Schwankungen der Rekombinationsverluste, Oberflächenrekombination sowie Temperatur- und Spannungsabhängigkeit der Impulsspektren qualitativ untersucht und über einige experimentelle Ergebnisse berichtet.
    Notes: Abstract The general solution for the recombination losses was derivsd and some simpler equations for the different cases of irradiation were found. The theoretical spectrum of pulses for irradiation perpendicular to the field as a result of the general solution was proved experimentally. Some new methods of measuring the lifetime and mobility in p-i-n-type counters by means of the voltage dependence of the recombination losses and the transit time and new methods of measuring the detector homogeneity were developed. Different influences on the fluctuations of recombination losses and energy resolution, surface recombination, and the voltage and temperature dependence of the pulse spectra are treated in turn.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01689570
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  • 8
    Electronic Resource
    Electronic Resource
    Periorbitales Ödem als Initialsymptom eines Lupus erythematodes profundus (1999)
    Springer
    Der Hautarzt 50 (1999), S. 889-892 
    Details
    ISSN: 1432-1173
    Keywords: Schlüsselwörter Kollagenose ; Lupus erythematodes profundus ; Periorbitales Ödem ; Key words Collagenosis ; Lupus panniculitis ; Periorbital edema
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Periorbital edema may occur initially or in the course of a wide variety of diseases. One of these diseases is lupus panniculitis, a variant of lupus erythematosus, characterized by firm subcutaneous nodules that may ulcerate with subsequent scar formation. We present a case of lupus panniculitis in which the periorbital edema was the initial manifestation. Knowledge about the differential diagnostic possibilities of periorbital edema as well as the different variants of cutaneous lupus erythematosus is important to reach the correct diagnosis.
    Notes: Zusammenfassung Das periorbitale Ödem ist ein Symptom, das initial oder im Verlauf von Erkrankungen verschiedenster Genese auftreten kann. Eine mögliche Assoziation stellt der Lupus erythematodes profundus dar. Diese Krankheit ist durch subkutane knotige und plattenartige Infiltrate gekennzeichnet, welche zu Ulzerationen und narbigen Einziehungen führen können. Anhand eines Fallberichts wird aufgezeigt, daß ein periorbitales Ödem als Initialsymptom den typischen Hautveränderungen eines Lupus erythematodes profundus vorausgehen kann. Die Kenntnis der möglichen Differentialdiagnosen bei periorbitalem Ödem sowie der unterschiedlichen Varianten eines Lupus erythematodes ist für die Diagnosestellung von entscheidender Bedeutung.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001050051005
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  • 9
    Electronic Resource
    Electronic Resource
    Althesin interaction with human plasma steroid binding globulins (1985)
    Springer
    European journal of clinical pharmacology 29 (1985), S. 181-185 
    Details
    ISSN: 1432-1041
    Keywords: althesin ; steroid binding globulins ; drug interaction ; steroid anaesthetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The binding affinities of two steroid anaesthetics, alphaxalone (Alfx) and alphadolone acetate (Alfd), for testosterone-oestradiol-binding globulin (TeBG) and corticosteroid-binding globulin (CBG) were measured in human serum. In 8 male patients, the effect of i.v. administration of Althesin (a mixture of Alfx and Alfd) on the transport of testosterone (T) and cortisol (F) was studied. Both Alfx and Alfd bind to TeBG and CBG with a relatively high affinity (106M−1). A significant change in the percentage of unbound T was observed during Althesin infusion, with no change in total T concentration or in the TeBG binding parameters. The results suggest that by interaction with TeBG binding sites Alfx and/or Alfd displaced T bound to TeBG, and transiently increased the percentage of unbound T. A significant increase in the concentration of F was observed during althesin infusion, while the percentage of unbound F and the CBG binding parameters were unchanged. The dose of Alfx and Alfd used was not sufficient to alter the transport of F during brief althesin anaesthesia in men.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00547419
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  • 10
    Electronic Resource
    Electronic Resource
    Genetic variation of an acid phosphatase (Acp-2) in the laboratory rat: Possible homology with mouse AP-1 and human ACP2 (1986)
    Springer
    Biochemical genetics 24 (1986), S. 1-11 
    Details
    ISSN: 1573-4927
    Keywords: Rattus norvegicus ; acid phosphatases ; genetic variation ; linkage studies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A genetic locus controlling the electrophoretic mobility of an acid phosphatase in the rat (Rattus norvegicus) is described. The locus, designed Acp-2, is not expressed in erythrocytes but is expressed in all other tissues studied. The product of Acp-2 hydrolyzes a wide variety of phosphate monoesters and is inhibited by l(+)-tartaric acid. Inbred rat strains have fixed either allele Acp-2a or allele Acp-2b. Codominant expression is observed in the respective F1 hybrids. Backcross progenies revealed the expected 1:1 segregation ratio. Possible loose linkage was found between the Acp-2 and the Pep-3 gene loci at a recombination frequency of 0.36±0.06.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502974
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