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  • 11
    Electronic Resource
    Electronic Resource
    Diffusion through a membrane: Approach to equilibrium (1976)
    Springer
    Bulletin of mathematical biology 38 (1976), S. 527-534 
    Details
    ISSN: 1522-9602
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract The transfer of solute through a membrane separating two aqueous solutions is studied with the time-dependent diffusion equation for composite media. By introducing new independent and dependent variables it is shown that the differential equations and boundary conditions can be transformed into a dimensionless form which does not explicitly depend on the diffusivities of the media. Laplace transforms are used to derive explicit solutions for the solute concentration as a function of position and time. It is shown that at large time the concentration approaches the equilibrium distribution exponentially. Explicit results are given for the decay time as a function of the parameters of the system. In addition, an accurate and simplified expression is derived for the decay time for the case of small membrane permeability. The accuracy of the analytic solutions for the concentration profiles is tested by comparing them with numerical results obtained by solving the diffusion equations by the method of finite differences. Excellent agreement is found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02459551
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  • 12
    Electronic Resource
    Electronic Resource
    196. Aktive bakterielle Endokarditis und ihre Klappenkomplikationen -Chirurgische Ergebnisse bei 225 Patienten (1975)
    Springer
    Langenbeck's archives of surgery 339 (1975), S. 722-722 
    Details
    ISSN: 1435-2451
    Keywords: Endocarditis ; Valvular complications ; Endokarditis ; Herzklappenprothesen ; Komplikationen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung 225 Patienten wurden wegen aktiver bakterieller Endokarditis oder der Klappenkomplikationen operiert. Die Frühmortalität betrug 12%. Bei 16 Patienten kam es zur Prothesendehiszenz - davon überlebten 6 Patienten die notfall mäßige Reoperation und 7 Patienten verstarben -, eine Indikation zu ausgedehnter Resektion des erkrankten Gewebes. Das mittlere Operationsalter betrug 43 Jahre. Auf Grund der vorliegenden Daten darf angenommen werden, daß die Mortalität durch eine kombinierte klappenchirurgische- und Coronararterien-Operation - falls indiziert-weiter gesenkt werden kann.
    Notes: Summary Between 1959 and 1973, 225 patients were operated on because of active bacterial endocarditis or its valvular complications. The hospital mortality was 12 percent and 60 patients died an average of 2 years after the operation. Seven early deaths occurred among 16 cases of acute dehiscence of the prosthetic valve-an indication for extensive resection of all diseased tissues. The average age was 43 years and there were 21 deaths due to myocardial infarction. The authors believe that the operative mortality can be further reduced through combined valvular and coronary artery surgery where this is indicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01257676
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  • 13
    Electronic Resource
    Electronic Resource
    193. Bypass-Chirurgie der Coronararterien bei 95 Patienten über dem 70. Lebensjahr (1975)
    Springer
    Langenbeck's archives of surgery 339 (1975), S. 720-720 
    Details
    ISSN: 1435-2451
    Keywords: Aortocoronary bypass surgery ; Aorto-coronare Bypass-Chirurgie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Von den bis Juli 1974 am Texas Heart Institute durchgeführten 3780 aorto-coronaren Bypass-Operationen waren 95 Patienten 70 Jahre oder älter. Die anfänglich hohe Operationsmortalität in dieser Altersgruppe mit 27% stand in klarem Gegensatz zur Gesamtmortalität von 7,1% und konnte im letzten Jahr - hauptsächlich auf Grund von Verbesserungen in der Operationstechnik - von 27 % auf 4,8 % reduziert werden. Damit kann auch beim alten Patienten, im Einzelfall, eine coronare Bypass-Operation als Behandlungsmöglichkeit ins Auge gefaßt werden.
    Notes: Summary From October 1969 through June 1974, 95 patients over 70 years of age underwent aortocoronary bypass at the Texas Heart Institute. The primary indication for surgery was severe angina, which was present in 88 patients. The mean coronary artery score was 9.51. Improvements in surgical technique are responsible for a reduction in the hospital mortality from 22.1 percent in all 95 patients to only 4.8 percent in the 21 patients operated upon during the first 6 months of 1974.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01257673
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  • 14
    Electronic Resource
    Electronic Resource
    226. Fallotsche Tetralogie (1975)
    Springer
    Langenbeck's archives of surgery 339 (1975), S. 745-745 
    Details
    ISSN: 1435-2451
    Keywords: Fallot's Tetralogy ; Early correction ; Fallot lung ; Fallotsche Tetralogie ; frühzeitige Korrektur ; „Fallot-Lunge”
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Pathologische Anatomie, Pathophysiologie, Klinik, Prognose, Indikation zur operativen Behandlung, operativ technisches Vorgehen, Primär- und Spätergebnisse werden schematisch sowie an Hand von Operationsphotos, Angiogrammen und Schaubildern dargestellt. Die Ausstellung basiert auf den Erfahrungen von 172 Korrekturen und 64 palliativen Eingriffen an der Abteilung für Herz- und Gefäßchirurgie der Universität Kiel.
    Notes: Summary Pathologic anatomy, pathophysiology, clinical signs, prognosis, indications for operative treatment, operative technique, and primary and late results are demonstrated schematically by means of diagrams, intraoperative pictures and angiograms. The exhibition is based on experience gained in 172 corrective and 64 palliative operations performed in the department of cardiovascular surgery at Kiel University between 1969 and 1975.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01257705
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  • 15
    Electronic Resource
    Electronic Resource
    Distribution of the a blood-group activity in porcine serum (1976)
    Springer
    Cellular and molecular life sciences 32 (1976), S. 929-930 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The A blood-group activity of pig serum is bound to a lipid, in some cases also to a nonlipid fraction. The major lipidic A activity (roughly 50%) is carried with the HDL class, while the VLDL and LDL classes contain roughly 25% each.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02003773
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  • 16
    Electronic Resource
    Electronic Resource
    A rapid and simple method for the isolation of pure eosinophilic leukocytes from horse blood (1978)
    Springer
    Cellular and molecular life sciences 34 (1978), S. 1654-1656 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary An improved and short method is described for the isolation of intact eosinophilic leukocytes from horse blood with high yield (1–1.5 g/20 1). Viability and purity of the preparations were verified by light and electron microscopy and by the trypan blue exclusion test. Isolated eosinophils were 98–100% pure, intact and viable, and they could be shown to phagocytise immune-complexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02034734
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  • 17
    Electronic Resource
    Electronic Resource
    Hydroxyl content of solution-precipitated calcium phosphates (1979)
    Springer
    Calcified tissue international 27 (1979), S. 153-160 
    Details
    ISSN: 1432-0827
    Keywords: Hydroxide ; Hydroxyapatite ; Titration ; Precipitation ; Thermodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary A method is described for determination of the titratable hydroxide ion in calcium phosphate precipitates. The procedure requires accurate analysis of the other titratable species in the crystal lattice but is unaffected by the presence of other lattice constituents or impurities. The method was applied to precipitates that had been previously analyzed by solution thermodynamic techniques, and the results were consistent with the earlier observations. The hydroxide content of the precipitates increased with crystal maturity and with increasing pH of the precipitation medium. The hydroxide content of the amorphous phase and the immediate post-amorphous-crystalline transformation phase was shown to be nearly zero. After 3 to 4 days' maturation, the hydroxide content of precipitates prepared at pH values of 7, 8, and 9 was shown to increase to approximately 23, 40, 56% of that required for pure hydroxyapatite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441178
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  • 18
    Electronic Resource
    Electronic Resource
    Modifications induced by benomyl and related compounds into chloroplasts spectral patterns, photosynthetic rates and chlorophyll contents ofSpinacia oleracea andCucumis melo (1977)
    Springer
    Bulletin of environmental contamination and toxicology 17 (1977), S. 431-437 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01685935
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  • 19
    Electronic Resource
    Electronic Resource
    Residues of triforine and its metabolites in barley grain and straw (1977)
    Springer
    Bulletin of environmental contamination and toxicology 18 (1977), S. 742-748 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01691987
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  • 20
    Electronic Resource
    Electronic Resource
    Amyloid neuropathy due to monoclonal gammopathy (1977)
    Springer
    Journal of neurology 216 (1977), S. 207-215 
    Details
    ISSN: 1432-1459
    Keywords: Monoclonal gammopathy ; Myeloma ; Peripheral neuropathy ; Amyloidosis ; Malabsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über den Fall einer Polyneuropathie bei monoclonaler Gammopathie berichtet. Das klinische Bild war geprägt von symmetrisch-paretischen Ausfällen mit dissoziierten Empfindungsstörungen. Histologisch fanden sich Amyloidablagerungen im peripheren Nerven. Der Fall wird mit den wenigen gleichgelagerten Fällen in der Literatur verglichen, und die sich daraus ergebenden Konsequenzen für die Überlegungen zur Pathogenese werden diskutiert.
    Notes: Summary A case with peripheral neuropathy due to monoclonal gammopathy is reported. There was striking, dissociated symmetrical sensory loss and paresis, the legs being affected predominantly. The case is compared with the few reported cases of myelomatous neuropathy, and the clinical and histological findings are discussed in view of the pathogenesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00313622
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