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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 5438-5442 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The spectral distribution of photoconductivity and infrared excited electroluminescence has been determined in GaP light emitting diodes at low temperatures by conventional infrared spectroscopic techniques. The observed photoresponse was found to be caused by ionization of shallow donors only, showing a peak sensitivity of 20 mA/W at 13-μm wavelength. Spectral structures for photon energies lower than the binding energies of shallow donors are attributed to electric field assisted photoionization. An external quantum efficiency of 3×10−3 was obtained being largely independent on the bias voltage and the wavelength of infrared stimulation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 119 (1988), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 464 (1986), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 253 (1966), S. 29-30 
    ISSN: 1432-1912
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 66 (1988), S. 790-795 
    ISSN: 1432-1440
    Keywords: Breast cancer ; Lung metastases ; Clinical course
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The clinical course of 50 breast cancer patients whose first metastases were found in the lungs was investigated. 18 months after the start of primary treatment 50% of the patients had developed pulmonary metastases (range: 0–81 months). In 23% of patients a solitary, and in 68% more than one, lung metastases were detected. After a median time of 4 months, in 56% of patients the disease had spread to further organs with bone (25%) and liver (17%) being the most frequent sites. First line management of lung metastases employed surgery, endocrine treatment, chemotherapy or a combination of these modalities. In 24% of patients a complete response was achieved, and in 11% a partial response, with an overall response rate of 35%. Median survival from detection of lung metastases was 13 months (range 4–123+). Patients with only a solitary lung metastasis survived for a median of 11.5 months as compared to 10.5 months for patients with more than one pulmonary metastases. Patients with a disease-free interval of more than 18 months survived significantly longer than patients with a disease-free survival of 18 months or less.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 46 (1968), S. 1260-1263 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Methemoglobin-reductase deficiency in the red cells has been found in a 11 years old girl. The enzymes of the glycolysis and pentosephosphatcyclus were normal. Further findings were decreased ATP and slightly decreased GSH in the red cells. Lactic acid production was increased. Methemoglobin reduction and CO-absorption were abnormal in the presence of glucose and lactic acid and was normalized by addition of toluidinblue. This abnormalities were considered as a consequence of the methemoglobin reduktase deficiency.
    Notes: Zusammenfassung Bei einem jetzt lljährigen Mädchen besteht seit der Geburt eine Cyanose, bedingt durch eine kongenitale Methämoglobinämie mit Methämoglobinreduktasemangel. Dieser Enzymmangel ist im Erythrocyten als primäre Störung anzusehen, die anderen Enzyme der Glykolyse und des Pentosephosphatcyclus zeigen Normalwerte. Die weiteren gefundenen metabolischen Besonderheiten — ATP vermindert, GSH gering vermindert, Lactatbildung erhöht, verminderte Methämoglobinreduktion ohne Substrat, mit Glucose und Lactat, durch Toluidinblau normalisiert, ebenso die CO-Aufnahme — sind insgesamt Folgen dieses Enzymmangels.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 45 (1967), S. 73-77 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In the serum and plasma of adults patients suffering from osteopetrosis we found a 6–8-fold increased activity of acid phosphatase and aldolase. The increase of lactase dehydrogenase was minor. The phosphatases had three maxima of activity in the acid pH range using 0,2M acetate buffer. Starch gel electrophoresis showed separation of three fractions. The substrates phenylphosphate,β-glycerophosphate andα-glycerophosphate are hydrolysed in the order listed with decreasing velocity. l-tartrate inactivated the phosphatases to 40%, but cystein to about 70%. In all patients an increase of citric acid, pyruvic acid and lactic acid was observed.
    Notes: Zusammenfassung 1. In Serum und Plasma von Patienten, die an Marmorknochenkrankheit litten, wurden Erhöhungen der Aktivität der „sauren“ Phosphatasen bis auf das Sechsfache der Norm, beträchtliche Aktivitätserhöhung der Aldolase und geringfügige der Lactatdehydrogenase festgestellt. 2. Die saure Plasmaphosphatase besitzt drei Aktivitätsmaxima bei pH 5,1, 4,7 und 4,0. Saure Serumphosphatase wird durch Stärkegelelektrophorese in drei Fraktionen aufgespalten und greift Phenylphosphat,β-Glycerophosphat undα-Glycerophosphat in der Reihenfolge ihrer Nennung mit abnehmender Geschwindigkeit an. Diese Plasmaenzyme wurden durch l-Tartrat zu 40% und durch Cystein zu 70% gehemmt, was sie von Phosphatasen anderer Herkunft unterscheidet. 3. Bei den untersuchten Patienten waren die Konzentrationen von Citronensäure und Brenztraubensäure im Serum stark, die der Milchsäure leicht erhöht.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Glutathionreductase and triosephosphate-isomerase were found to be reduced in the erythrocytes and platelets of a twelve year old boy with pancytopenia of the type Estren-Damashek.
    Notes: Zusammenfassung Bei einem 12jährigen Knaben mit Pancytopenie vom Typ Estren-Damashek wurde bei Stoffwechseluntersuchungen der Erythrocyten und Thrombocyten ein Mangel an Glutathionreductase und Triosephosphatisomerase festgestellt.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 17 (1968), S. 294-299 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Erythrocyte metabolism studies in a case with hereditary spherocytosis only showed minimal deviations of the activity of the enzymes of glycolysis from the normal values. The formation of lactate was increased, the intracellular sodium concentration was increased and the intracellular potassium concentration was decreased. The methemoglobin level of the erythrocytes was increased. After splenectomy, which resulted in a good clinical and hematological remission, lactate formation and the abnormal electrolyte and methemoglobin level of the erythrocytes returned to normal.
    Notes: Zusammenfassung Untersuchungen des Stoffwechsels der Erythrozyten bei einem Fall von hereditärer Sphärozytose ergaben nur geringe Abweichungen der Aktivität der Fermente der Glykolyse von der Norm. Die Bildung von Laktat war gesteigert, der Gehalt an intrazellulärem Natrium vermehrt und an Kalium vermindert; der Methämoglobingehalt der Erythrozyten war vermehrt. Nach der Splenektomie, die zu einer guten klinischen und hämatologischen Remission führte, normalisierte sich die Laktatbildung und der abnorme Elektrolytund Methämoglobingehalt der Erythrozyten.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 8 (1987), S. 1399-1410 
    ISSN: 1572-9559
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
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