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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 13 (1983), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Precipitins against avian antigens in sera from patients with extrinsic allergic alveolitis, asymptomatic pigeon and chicken breeders and from control individuals were tested with different antigen extracts in six laboratories by a variety of different methods. Eighty percent of the results coincided in identifying the positive sera from patients and 90% in identifying the controls. It seems possible therefore to exchange results among experienced laboratories with fair confidence.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 409 (1983), 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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  • 3
    ISSN: 1435-1536
    Keywords: Proton-NMR ; spin-spin-relaxation ; lineshape analysis ; multicomponent polimeric systems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Abstract A method is presented to study the proton spin-spin-relaxation of one and two phase polymeric systems in a time range of 10−6 to 10−1 s, using a logarithmic time scale. Observing the line shape of the free induction decay (FID), an extensive description of the relaxation behaviour is possible in case of one phase systems in the temperature range from the rigid solid to the melt, and in case of two phase systems (in the temperature range between the glass temperatures of each phase) for each phase separately. By a combination of serveral pulse methods known from the literature, the true shape of the FID's is measured. The FID's are analyzed by comparison with simple mathematical line shapes. Several examples of measurements and analyses are discussed.
    Notes: Zusammenfassung Als Grundlage von Polymeruntersuchungen wird ein Meßverfahren vorgestellt, das die Beobachtung der Protonen-Spin-Spin-Relaxation von Ein- und Zweiphasensy steinen in einem Zeitbereich von 10−6 bis 10−1 s unter Verwendung einer logarithmischen Zeitachse gestattet. Hierdurch wird eine einwandfreie Kennzeichnung der Einphasensysteme hinsichtlich der Kettenbeweglichkeit vom Festbis in den Schmelzzustand und der Zweiphasensysteme für jede Phase separat ermöglicht. Durch die Kombination einer Reihe von in der Literatur beschriebener Meßverfahren werden Störeffekte, die die Relaxationskurve verzerren, ausgeschaltet. Die gemessenen Relaxationskurven werden durch Vergleich mit geeigneten Kurvenprofilen mathematisch analysiert. Einige Anwendungsbeispiele werden diskutiert.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 240 (1984), S. 43-48 
    ISSN: 1434-4726
    Keywords: Biochemical analysis ; Perilymph ; Sources of error ; Cerebrospinal fluid ; Guinea-pig
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Contamination of perilymph with other fluids (cerebrospinal fluid, tissue fluid, blood, endolymph) together with sampling, anaesthesia, surgical intervention or food intake of the animals may considerably affect the analytical result. The numerous possible artefacts seem to be the main reason why varying values are given in the literature for the same chemical component of perilymph. This is also partly true of cerebrospinal fluid and blood. The effect of some sources of error on selected chemical components of perilymph, cerebrospinal fluid and blood is briefly summarized.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 143 (1984), S. 35-40 
    ISSN: 1432-1076
    Keywords: Chronic intrahepatic cholestasis ; Biliary lipid composition ; Bile acids ; Gallstones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Biliary lipid composition, standard liver function tests, serum lipids and faecal fat excretion were studied in 15 children with chronic intrahepatic cholestasis (severe intrahepatic cholestasis, n=6; paucity of intralobular bile ducts, n=4; benign recurrent cholestasis, n=5) and compared to 15 children without gastrointestinal diseases. Severe and benign intrahepatic cholestasis were associated with normal or moderately elevated serum lipids. Biliary lipid concentrations were extremely reduced, bile acid concentrations were below the critical micellar concentration. This may account for the high incidence of gallstone formation in these patients. Remission periods in patients with benign recurrent cholestasis were not followed by complete normalisation of biliary lipid concentrations, indicating a primary defect in hepatic excretory function. Children with paucity of intralobular bile ducts showed markedly increased serum lipids, but only a two-fold reduction in biliary lipid concentrations. Cholic acid was the predominant bile acid in bile of all cholestatic children even during remission. Neither increased levels of monohydroxy bile acids nor unusual bile acids could be identified in notable amounts.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 143 (1984), S. 41-44 
    ISSN: 1432-1076
    Keywords: Chronic intrahepatic cholestasis ; Biliary lipid composition ; Bile acids ; Phenobarbital
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The effects of phenobarbital (5.4–7.5 mg/kg body weight) for 14 days were studied in four children with severe intrahepatic cholestasis (group I) and in four with a syndromatic type of paucity of intralobular bile ducts (group II). Phenobarbital administration resulted in a moderate improvement of pruritus in all patients. There was a significant decrease of bilirubin in serum (group I: from 4.8 to 2.7 mg/dl; group II: from 6.1 to 2.1 mg/dl); total bile acids (group I: from 416 to 337 μmol/l; group II: from 156 to 123 μmol/l) and cholesterol (group I: from 248 to 207 mg/dl; group II: from 351 to 292 mg/dl). Alkaline phosphatase activity increased from 929 to 1126 U/l in group I and from 1751 to 2360 U/l in group II. SGOT and SGPT activities remained unchanged in both groups. In group I total biliary lipid concentration and bile acid output increased from 0.09 to 0.17 g/dl and from 3.9 to 7.2 μmol/kg per 30 min, respectively. Molar percentages of cholesterol, phospholipids and bile acids in bile remained unchanged. In group II total lipid concentrations and bile acid output increased from 1.62 to 2.0 g/dl and from 27.8 to 39.1 μmol/kg per 30 min, respectively. The molar percentage of cholesterol decreased from 5.6 to 3.5 mol%. The present results indicate that short term administration of phenobarbital has only minimal effects on biliary lipid metabolism in children with chronic intrahepatic cholestasis.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1574-4647
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The redistribution of conconavalin A (Con A) receptors on peripheral blood mononuclear cells was studied in young adult patients with Down’s syndrome (DS), and young-adult controls and aged normal volunteers. DS was included in the study as it shows many features of accelerated aging. The percentage of Con A capping was markedly lower in DS patients and aged individuals than in young-adult controls. Colchicine displayed a significant enhancing effect on Con A capping in DS patients and aged individuals, but a moderate inhibitory effect on Con A capping in the young adults. The enhancing effect in DS patients and aged volunteers suggests the possibility that an excess of polymerized tubulin (microtubules) may occur in lymphocytes during normal or accelerated aging.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 360 (1983), S. 109-118 
    ISSN: 1435-2451
    Keywords: Duodenogastric reflux ; Quantification ; Liver cirrhosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der duodenogastrische Reflux wurde quantitativ bei Patienten mit histologisch nachgewiesener Lebercirrhose und magen- und lebergesunden Kontrollpersonen bestimmt. Die Bestimmung des duodenogastrischen Refluxes erfolgte nach dem Gallemarkerprinzip unter Verwendung des Tricarbocyanin-Farbstoffes Indocyaningreen (ICG). Die intragastrale Konzentration von ICG wurde nach Ausheberung des Magensaftes über eine Magensonde photometrisch gemessen und der duodenogastrische Reflux in Prozent der infundierten bzw. biliär sezernierten ICG-Menge berechnet. Bromthalein wurde als zusätzlicher Marker benutzt, um eine Kontrolle über die Vollständigkeit der Magensaftelimination zu erreichen. Insgesamt wurden 15 Patienten mit Lebercirrhose und 6 magen- und lebergesunde Kontrollpersonen untersucht. Die Patienten mit Lebercirrhose wiesen einen Reflux von 2,85% ± 0,76%, die magen- und lebergesunden Kontrollpersonen (n = 6) einen Reflux von 0,45 ± 0,39 % auf. Der Unterschiediststatistischsignificant(P 〈 0,05). Die Bromthaleinaspiration betrug bei allen Lebercirrhotikern 87,95 ± 2,78 % der infundierten Menge.
    Notes: Summary Patients suffering from liver cirrhosis and patients showing no signs of liver or stomach disease (control group) were quantitatively examined for duodenogastric reflux. The duodenogastric reflux was measured by means of bile tracers. The bile tracer used in this study was the tricarbocyanin dye indocyningreen (ICG). The intra-gastric concentration of ICG was photometrically measured after gastric acid was suctioned through a stomach tube. The duodenogastric reflux was calculated in percent in terms of the infused and the biliary secreted ICG amount respectively. Bromthalein was used as an additional tracer in order to control the efficiency of peptic acid removal. A total of 15 patients suffering from liver cirrhosis and 6 patients who showed no signs of stomach or liver disease (control group) were examined. The patients with liver disease showed a reflux of 2.85% ± 0.76%, the control group (n = 6) showed a reflux of 0.45% ± 0.39%. The difference is statistically significant (P 〈 0.05). Bromthalein aspiration by all patients with liver cirrhosis was 87.95 ± 2.78% of the amount infused.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 355 (1981), S. 549-549 
    ISSN: 1435-2451
    Keywords: Resection of the ileum ; Postoperative symptomes ; Ileumresektion ; Postoperatives Beschwerdebild
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zur Erfassung des klinischen Beschwerdebildes dünndarmresezierter Patienten wurden von 197 Patienten mit isolierter Dünndarmresektion aus den Jahren 1958-1978 der Chirurgischen Universitäts Klinik Bonn 68 Patienten befragt und die Ergebnisse ausgewertet. Von diesen wurde bei 14 Patienten weniger als 30 cm Ileum reseziert, bei 21 Patienten 30- 80 cm, bei 19 Patienten 80-150 cm und bei 9 Patienten mehr als 150 cm. Bei 5 Patienten wurden 80 cm Jejunum reseziert. 53 (77,9%) der befragten Patienten gaben z. Z. der Entlassung Durchfälle an. Bei 16 Patienten (23,5%) trat postoperativ keine Besserung ein, bei 26 Patiente (38,2%) dauerte die Adaptation 3 Monate bis zu 1 Jahr. Zwischen Resektatlänge und Stuhlfrequenz sowie allgemeinem Beschwerdebild fand sich bei fast allen Gruppen eine Korrelation.
    Notes: Summary To document the clinical symptoms after partial resection of the small intestine 68 patients of a total of 197 patients operated during the period of 1958-1978, Department of Surgery, University of Bonn, were evaluated for their postoperative symptoms. Of the 68 patients 14 had a resection of less than 30 cm of the ileum, 21 patients of 30–80cm, and 9 more than 150cm. Five patients had undergone a resection of 80 cm of jejunum. Of these patients 53 (78%) had diarrhea at the time of discharge from the hospital. A normalisation of the bowel movement appeared after 3 to 12 months in 26 patients (38%),16 patients (24%) experienced no improvement at all. A correlation between the length of intestinal resection and requency of bowel movements as well as general symptoms was found in all groups of patients.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 358 (1982), S. 471-471 
    ISSN: 1435-2451
    Keywords: Ileal resection ; Biliary secretion ; Cholesterol gallstone formation ; Ileumresektion ; biliäre Sekretion ; Cholesteringallensteinbildung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Patienten mit Resektion des terminalen Ileums weisen eine erhöhte Incidenz von Cholesteringallensteinen auf. Zur Aufklärung des Mechanismus der Steinbildung wurde bei 5 Patienten mit Ileumresektion (mehr als 120 cm) und bei 5 Kontrollpersonen die biliäre Lipidsekretion über 24 h gemessen. Die biliäre Sekretion von Gallensäuren (GS), Phospholipiden (PL) und Cholesterin (CH) war bei den resezierten Patienten um 52 %, 53 % bzw. 47 % erniedrigt. Die Reduktion der CH-Sekretion war nicht so ausgeprägt wie die von GS und PL. Aus diesem Grunde war die Galle bei Ileumresezierten 14 h am Tag mit CH übersättigt, im Gegensatz zu 7h bei den Kontrollpersonen (p 〈 0,0s1).
    Notes: Summary Patients with resection of the ileum are at increased risk of forming cholesterol gallstones. In order to investigate the underlying mechanism of stone formation, biliary lipid secretion was measured for 24 h in five patients after ileal resection (more than 120 cm) and five controls. The biliary secretion of bile acid (BA), phospholipids (PL), and cholesterol (CH) in ileal resected patients was reduced by 52%, 53%, and 47%, respectively. The reduction in cholesterol secretion rate was not as much as that of BA and Pl. As a result, the bile in patients with ideal resection was supersaturated with CH for 14h in contrast to 7 h in control subjects (p 〈 0.01).
    Type of Medium: Electronic Resource
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