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  • 1
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 132-136 (Apr. 1997), p. 1870-1873 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 46 (1968), S. 1099-1104 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary After a short description of the principle of a new electron microscope (Stereoscan) a new method is given to investigate the inside surface of vessels with this equipment. It is shown that with this microscope it becomes possible to see tiny cellulare adhesions on the inside surface of arteries. Normally there cannot be found any elements of streaming blood. On this surface hurt by an impulse current within a few minutes adhesions are formed consisting of numerous platelets and fibrin. Moreover characteristical globular forms are to be found with a 4–5 µ diameter. This bowls have a layer which possibly is fibrin too. It was easy to identify the platelets on the arterial wall by comparing them with sedimented platelets shown by the same method. Fibrin — preparations without cells resemble fibre — like structures on the blessed endothelium.
    Notes: Zusammenfassung Nach einer kurzen Beschreibung des Prinzips eines neuartigen Raster-Elektronenmikroskops (Stereoscan) wird eine Methode zur Untersuchung von Gefäßinnenflächen mit diesem Gerät mitgeteilt. Es wird gezeigt, daß es damit möglich ist, kleinste intra vitam adhärent gewordene Elemente auf der Innenfläche der Arterien nachzuweisen, auf denen normalerweise keine Bestandteile des strömenden Blutes zu finden sind. Auf der durch einen Stromstoß verletzten Innenschicht eines Gefäßes bilden sich in wenigen Minuten Auflagerungen, die aus zahlreichen Thrombocyten und Fibrinfasern bestehen. Darüber hinaus sind charakteristische kugelige Gebilde mit einem Durchmesser von 4–5 µ mit Auflagerungen, die möglicherweise ebenfalls Fibrin sind, zu finden. Die Identifizierung der Thrombocyten gelang einwandfrei durch Untersuchung von Thrombocytenaufschwemmungen mit derselben Methode. Ähnliche faserige Strukturen wie auf lädiertem Endothel zeigen zellfrei hergestellte Fibrinpräparationen.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 47 (1969), S. 1166-1170 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary By Scanning Electron Microscopy the terminal bloodflow of the hamster cheek pouch and the rabbit mesenterium was studied for 50 minutes after intravenous injection of endotoxin. The resulting findings were compared with vitalmicroscopic observed changes of the microcirculation. Caused by endotoxin the surface of the cells especially of the erythrocytes undergo considerable deformations as already known from the vitalmicroscopic studies. Aggregation of platelets, which are formed in the terminal blood flow after application of endotoxin were recognized as irreversible aggregates (thrombus) of platelets by means of the Stereoscan-technique. Fibrin and platelets were identified in aggregates of erythrocytes which often appear disseminate in many of the small vessels adhaering to the wall.
    Notes: Zusammenfassung Mittels REM wurde an Hamsterbackentasche und Kaninchenmesenterium die terminale Strombahn 50 min nach intravenöser Injektion von Endotoxin untersucht. Die hierbei erhobenen Befunde wurden zu den vitalmikroskopisch erkennbaren Veränderungen an der Mikrozirkulation in Parallele gesetzt. Wie schon aus vitalmikroskopischen Untersuchungen bekannt, treten erhebliche Deformierungen der Zelloberfläche besonders bei den Erythrocyten endotoxinbedingt auf. Aggregation von Thrombocyten, die in der terminalen Strombahn nach Endotoxingabe entstehen, konnten mittels der Stereoscantechnik als irreversible Thrombocytenthromben erkannt werden. In Aggregaten von Erythrocyten, die sich vielerorts in den kleinen Gefäßen häufig wandadhärent entwickeln, konnte im Rasterelektronenmikroskop Fibrin mit Thrombocyten nachgewiesen werden.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 53 (1975), S. 913-922 
    ISSN: 1432-1440
    Keywords: Transperitoneal absorption of erythrocytes and Ehrlich ascites tumor cells ; transperitoneal spread of tumor cells ; scanning electron microscopic study ; Transperitoneale Resorption von Erythrocyten und Ehrlich-Aszitestumorzellen ; transperitoneale Metastasierung ; rasterelektronenmikroskopische Untersuchung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung 1. Die Resorption von Suspensionen mikroskopisch kleiner Teilchen aus dem Bauchraum über die großen Lymphbahnen in das periphere Blut ist seit langem bekannt. Die vorliegenden Versuche wurden ausgeführt, um näheren Aufschluß über den Resorptionsort zu erzielen und zu prüfen, ob der gleiche Weg für die Verbreitung von Geschwulstzellen aus dem Bauchraum in die Blutgefäße eine Rolle spielt. 2. Mit dem Raster-Elektronenmikroskop wurde bei insgesamt 40 Ratten und Mäusen die Peritonealoberfläche des Zwerchfells und zum Teil der seitlichen Bauchwand untersucht. Die Beobachtungen erfolgten bei 8 Ratten und 3 Mäusen 24 Std nach i.p. Injektion gewaschener homologer Erythrocyten und bei 20 Ratten und 5 Mäusen im Abstand von 24 Std nach i.p. Injektion von Ehrlich-Aszitestumorzellen. Jeweils 2 Ratten und Mäuse dienten zur Kontrolle. 3. Bei den Kontrolltieren wurden keine Öffnungen im Peritoneum des Zwerchfells und der seitlichen Bauchwand beobachtet. 4.|Nach i.p. Injektion von Erythrocyten wurden Öffnungen („Stomata“) auf der peritonealen Zwerchfelloberfläche unddie Resorption von Erythrocyten nachgewiesen. Die seitliche Bauchwand war frei von peritonealen Öffnungen. 5. Nach i.p. Injektion von Ehrlich-Aszitestumorzellen wurden im Lumen der „Stomata“ Tumorzellen beobachtet. Eine lymphohämatogene Metastasierung von Tumorzellen aus der Bauchhöhle ist zumindest in der Frühphase des Geschwulstbefalls wahrscheinlich. In der Folgezeit kommt es zur Implantation der Tumorzellen auf dem Peritoneum.
    Notes: Summary 1. It is well known that microscopically small particles may be absorbed from the peritoneal cavity via the large lymphatic vessels. The present experiments were carried out in order to elucidate the site of the absorption. In addition, the role of transperitoneal transport of neoplastic cells as a possible cause of cancer metastases was studied. 2. The peritoneal surface of 40 rats and mice was studied with the scanning electron microscope (diaphragm, lateral abdominal wall). The investigations were carried out in 8 rats and 3 mice 24 hrs following the intraperitoneal injection of washed homologous erythrocytes and in 20 rats and 5 mice 24 hrs after the intraperitoneal injection of Ehrlich ascites tumor cells. 2 rats and 2 mice served as controls. 3. In the control animals no stomata could be shown in the peritoneum of the diaphragm or in the lateral abdominal wall. 4. The i.p. injection of erythrocytes was followed by the appearance of stomata in the peritoneal surface of the diaphragm, and absorption of erythrocytes could be demonstrated. No stomata were found in the peritoneum of the lateral abdominal wall. 5. Tumor cells were found in the stomata following the i.p. injection of ascites tumor cells. It is concluded that a lympho-hematogenous spread of tumor cells seems probable at least in the early stage of tumor infiltration of the peritoneum. This stage is followed by implantation of the tumor cells on the peritoneum.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 55 (1977), S. 533-537 
    ISSN: 1432-1440
    Keywords: Haemoperfusion ; Indication ; Side effects ; Hämoperfusion ; Indikation ; Nebenwirkungen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung 6 Patienten mit suizidalen Vergiftungen wurden bisher in unserem Zentrum mit der Haemocol-Kapsel behandelt. Davon haben 4 Patienten mit Schlafmittelvergiftung überlebt. 2 Patienten mit Vergiftung durch Agrochemikalien sind trotz Kohleperfusion verstorben. An Nebenwirkungen wurden Blutdruckabfälle, Thrombozytopenie, Depletion an Immunglobulinen und Adsorption von Medikamenten beobachtet. Zur Zeit müssen diese Epiphänomene bei der Indikationsstellung als unvermeidbar mit ins Kalkül eingehen.
    Notes: Summary 6 patients with severe self-poisoning were treated by charcoal-haemoperfusion in our centre up to now. In four of them (all suffering from sleeping drug overdosage) the treatment was successful. Two patients with intoxications by agrochemicals died in spite of haemoperfusion. Side effects of haemoperfusion were drops of blood pressure and platelet count, depletion of immune bodies, and adsorption of remedies. Up to now, the indication for haemoperfusion has to consider these secondary actions of encapsulated charcoal as inevitable.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Chemistry and Physics of Lipids 25 (1979), S. 191-201 
    ISSN: 0009-3084
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Chemistry and Physics of Lipids 21 (1978), S. 187-194 
    ISSN: 0009-3084
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Chemistry and Physics of Lipids 11 (1973), S. 210-214 
    ISSN: 0009-3084
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Lipids and Lipid Metabolism 711 (1982), S. 197-207 
    ISSN: 0005-2760
    Keywords: (Mammalian cell) ; Enzyme specificity ; Ether lipid ; Homologous alcohol ; Octadecenol ; Wax ester
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Venus has no significant internal magnetic field, which allows the solar wind to interact directly with its atmosphere2,3. A field is induced in this interaction, which partially shields the atmosphere, but we have no knowledge of how effective that shield is at solar minimum. ...
    Type of Medium: Electronic Resource
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