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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 61 (1968), S. 30-39 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Neurospora sitophila 299 (pyridoxinbedürftig) zeigt mit steigendem Angebot an Pyridoxol · HCl im Medium statistisch gesicherte Zunahmen an Protein, Zellwandsubstanzen (einschließlich Chitin) und Asche sowie Abnahmen an RNA und DNA. Der Lipidgehalt ist vom Pyridoxolangebot unabhängig. Der Durchmesser der Hyphen ist im Pyridoxinmangel statistisch signifikant größer als bei ausreichenden Gaben. Bei elektronenmikroskopischer Betrachtung gibt es keinen Anhalt für Pyridoxin-induzierte Veränderungen der Zellwandstärke.
    Notes: Summary With rising concentrations of pyridoxine in culture mediumNeurospora sitophila 299 (pyridoxineless) shows a significant increase of the relative amounts of protein, cell wall substances (incl. chitin), and ash, and a decrease of RNA and DNA. The lipid contents remain unchanged. The diameters of pyridoxine deficient hyphae are significantly greater than those of normal hyphae. Electron microscopic examination shows that B6-deficient cells do not contain a thinner or thicker than normal cell wall layer external to the membrane.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Fatigue & fracture of engineering materials & structures 25 (2002), S. 0 
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The deleterious influence of atmospheric moisture on the fatigue properties of an aluminium wrought alloy AlZnMgCu1.5-T6, an aluminium cast alloy AlSi9Cu3 and magnesium cast alloys AM60 hp, AZ91 hp and AS21 hp has been studied at a cycling frequency of 20 kHz. Atmospheric moisture accelerates fatigue crack growth and decreases the threshold stress intensities to 55–75% of the respective values in vacuum. In ambient air, fatigue crack growth rates were up to two decades higher than those in vacuum. Accelerated crack growth was found at propagation rates below about 2 × 10−9 m cycle−1 in aluminium alloys and below about 3 × 10−8 m cycle−1 in magnesium alloys. As the threshold regime is approached, fatigue cracks in ambient air either propagate at a minimum mean growth rate on average of approximately one lattice spacing per cycle or they stop propagating, whereas mean growth rates of 10−12 m cycle−1 were found in vacuum. Crack initiation and slow fatigue crack growth mainly determine lifetimes in the high cycle regime, and endurance data obtained at ultrasonic frequency in ambient air of 40–60% relative humidity are similar to lifetimes measured at conventional frequencies.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 407 (1985), S. 431-439 
    ISSN: 1432-2307
    Keywords: Diabetes mellitus ; NIDDM (non insulin dependent diabetes mellitus) ; Arteriosclerosis ; Gangrene ; Calcification ; Lumen stenosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Calcification of the media of the arteries of the lower limbs, giving a linear type of calcification roentgenologically is typical for diabetic arteriosclerosis. Spotty calcification of the arteries of the lower extremity, which histologically is found in the intima, is also seen a little more often in diabetics with gangrene. There are no major differences between the other histological vascular structures of diabetics and arteriosclerotics. Maximal stenosis of the lumen is found more peripherally in diabetics than in persons with normal carbohydrate metabolism. The results favour the idea of predominant femoropopliteal occlusion in arteriosclerosis and popliteal-tibial occlusion in diabetics.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 285 (1957), S. 29-37 
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Auf Grund der Beobachtung zweier histologisch differenter Carcinome in einer Lunge wird unser Wissen von den Doppelcarcinomen der Lunge dargestellt. Die Definition des Begriffes Doppelcarcinom ist enger als von anderen Autoren gefaßt. Das Fehlen von Blutgefäßveränderungen der Lunge, die im Gefolge der Tumorembolie auftreten (M. B. Schmidt), scheint entscheidend für die Anerkennung als Lungen-Doppelcarcinom und geeignet, die Beschäftigung mit diesem Problem zuzulassen, dessen theoretische und praktische Bedeutung hervorgehoben wird und das bislang “mangels klar zu formulierender Voraussetzungen” nur ganz vereinzelt erwähnt wurde.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of cancer research and clinical oncology 63 (1960), S. 592-598 
    ISSN: 1432-1335
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The study of the mitotic activity of the corneal and duodenal epithelia was carried out in mice with Ehrlich carcinoma (both solid and ascites form), and in rats with Walker and Jensen tumors. There were no differences in the values for the animals studied and in control values. The deviation of the results here from those reported in the literature can be attributed to the use of other animals and tumors. A fluctuation in the diurnal rhythm of mitoses was indicated. This variation could be missleading if comparisons of experimental and control animals were made only at occasional times of the day.
    Notes: Zusammenfassung Die Untersuchung der cornealen und duodenalen Mitoserate an Mäusen mit Ehrlich-Carcinom (solid, in Ascitesform wachsend) und Ratten mit Walker- und Jensen-Tumoren ergibt bei den untersuchten Tumorgrößen keine Unterschiede zu den Kontrollwerten. Die Deutung des abweichenden Verhaltens bei unseren Versuchen von den Ergebnissen einer anderen Mitteilung kann an der Verwendung anderer Tiere und Tumoren liegen. Bei der Auswertung im Hinblick auf die verschiedenen geprüften Tageszeiten zeichnete sich eine gewisse Änderung der Mitosenrhythmik ab, die bei Betrachtung nur einer Tageszeit gelegentlich Unterschiede zwischen Versuchs- und Kontrolltieren vortäuschen könnte.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 23 (1967), S. 390-392 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Light- and electron-microscopic investigations reveal a non-enzymatic, non-specific deposition of TNBT-formazan in the sarcoplasma and along some membranes in the heart of the rat. These results are of interest with regard to the interpretation of histochemical identifications of oxidative ferments with TNBT as reduction-indicator.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 243 (1988), S. 37-39 
    ISSN: 1432-0711
    Keywords: Relaxin ; Cervico-vaginal secretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Relaxin was measured in cervico-vaginal secretion of non-pregnant women of reproductive age using the heterologous radioimmunoassay for porcine relaxin. It was detected in about three-quarters of the samples collected. The mean value of the 529 samplers tested was 599 pg/ml. There was a slight trend to higher relaxin values during the second week of the menstrual cycle.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 341 (1966), S. 108-114 
    ISSN: 1432-2307
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Electron microscopic studies of macrophages of the granuloma, produced in rats with an intramuscular injection of turpentine-oil, revealed many inclusions, among them many lamellar bodies. Larger, loosely layered membraneous bodies were rarer. The structural differences between these two forms reflect their dissimilar chemical or physical constituents. Because of the inclusions, some quantitative and qualitative differences exist compared with other models of inflammation. This fact is explained by the great toxicity of the turpentine-oil, which damages not only the preexisting structures but also the newly forming granulation tissue.
    Notes: Zusammenfassung In Makrophagen des intramuskulÄren Terpentinölgranuloms der Ratte finden sich neben anderen Einschlüssen zahlreiche lamellÄre Körper. Etwas seltener werden grö\ere, locker geschichtete, aus Membranen aufgebaute Einschlüsse angetroffen. Die Strukturunterschiede zwischen beiden Formen werden auf chemische und physikalische Differenzen zurückgeführt. Da\ hinsichtlich der Einschlüsse einige quantitative und qualitative Unterschiede zu anderen Entzündungsmodellen bestehen, wird auf die starke toxische TerpentinölschÄdigung des prÄexistenten und des neugebildeten Entzündungsgewebes bezogen.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 343 (1968), S. 286-296 
    ISSN: 1432-2307
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Hunde mit einem zumeist nach Pankreatektomie entstandenen Diabetes mellitus von 5–10 Jahren Dauer erkranken an einer chronischen unspezifischen Glomerulonephrose. Hinweise auf eine diabetische Angiopathie finden sich nicht. In der Muskulatur und im restlichen Pankreas werden Cytosegresome und in der tubulären Basalmembran der Niere kristalline Ablagerungen beobachtet. Da in Übereinstimmung mit der Mehrzahl der kurzfristigeren Untersuchungen auch der Langzeit-Versuch nicht zu einer nodulären Glomerulosklerose führt, ist für die Entstehung des vonKimmelstiel undWilson beschreibenen Gewebsbildes eine in diesen Tierexperimenten nicht wirksame oder fehlende Ursache anzunehmen.
    Notes: Summary Dogs with a diabetes mellitus (post-pancreatectomy) lasting at least 5–10 years become ill with a chronic, nonspecific glomerulonephrosis. Diabetic angiopathy is not evident. In the muscles and in the remaining pancreas there are cytosegresomes, and crystalline deposits are evident in the renal tubular basement membrane. Since in the long-term studies, as in the majority of the short-term studies, a nodular glomerulosclerosis did not develop, it is assumed that in these animal experiments the cause necessary for the development of the tissue changes described byKimmelstiel andWilson was inactive or absent.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 197 (1970), S. 133-148 
    ISSN: 1432-1459
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 77 Patienten, von denen 91mal unter dem EEG ein psychomotorischer Anfall abgeleitet werden konnte, wird versucht, klinisches Anfallsbild mit dem Anfalls-EEG-Muster in Beziehung zu setzen. Wie aus einer umfangreichen Tabelle hervorgeht, wurden u. a. die Ätiologie des Anfallsleidens, die Kombinationsform mit anderen epileptischen Anfällen, die Art der Auslösung und vom EEG her die initiale Kurvendepression, die vorherrschenden Wellenformen und Asymmetrien im Anfalls-EEG sowie das Intervall-EEG mit in die Untersuchung einbezogen. Dabei ließ sich keine Übereinstimmung zwischen initialer Kurvendepression im Anfalls-EEG und dem Auftreten einer Aura bzw. eines dreamy state herstellen. Unterschiedlichen Anfallsmustern im EEG waren klinisch keine Besonderheiten im Anfallsablauf zuzuordnen. Es entspricht eine einseitige EEG-Veränderung weder im Anfall noch im Intervall konstant der Seite adversiver oder fokaler Zeichen im Anfall. Auch dysphasische Anfallssymptome lassen keine eindeutige Beziehung zur Seite der Herdveränderung im EEG erkennen. Bemerkenswert erscheint weiter, daß der größte Teil der Anfälle durch Hyperventilation provoziert werden konnte. In der Diskussion werden die Ergebnisse mit den in der Literatur berichteten Befunden verglichen und ihre Interpretation versucht.
    Notes: Summary In this study an attempt was made to correlate the different clinical pictures of psychomotor fits to EEG patterns during the attacks on the basis of 91 recordings in 77 patients. As the tabulation of the data shows, the etiology of the seizures, their combination with other epileptic fits, the mode by which psychomotor fits were triggered, and with regard to the EEG the initial depression, the predominant pattern of recorded potentials, and the asymmetries both during psychomotor attacks and the interictal phase were taken into consideration. There was no consistent relationship between an initial depression in the EEG during a fit and the occurrence of an aura or dreamy state. Particular EEG patterns recorded during the fits failed to correspond to clinically different types of psychomotor attacks. A unilateral alteration in the EEG during the attack or during the interictal phase did not coincide with the adversive or focal signs during the attacks. A clear relationship between dysphasic symptoms during the fits and the EEG discharges could not be noted. In the discussion our results were related to literature reports and tentatively interpreted.
    Type of Medium: Electronic Resource
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