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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 55 (1977), S. 539-543 
    ISSN: 1432-1440
    Keywords: Dysfibrinogenemia ; Fibrin polymerization defect ; Bleeding disorder ; Dysfibrinogenämie ; Fibrinpolymerisationsstörung ; Hämostasestörung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über einen neuen Fall von Dysfibrinogenämie berichtet. Der genetische Moleküldefekt hat keine manifeste hämorrhagische Diathese zur Folge, sondern zeigt sich lediglich in diskreten Veränderungen der gerinnungsanalytischen Parameter (verlängerte Thrombin-, Reptilase- und Thrombinkoagulasezeit; erniedrigter Wert des thrombingerinnbaren Proteins im Vergleich zum Ergebnis der immunologischen Fibrinogenbestimmung; verzögerter Verlauf der Fibrinpolymerisation). Darüberhinaus werden Klinik und Diagnostik der Dysfibrinogenämie zusammenfassend dargestellt.
    Notes: Summary A new case of dysfibrinogenemia is reported which shows no signs of a haemorrhagic diathesis (dysfibrinogenemia Gießen III). The abnormal fibrinogen was detected by only slight but characteristic alterations of some parameter of the coagulation analysis (prolonged clotting times after addition of thrombin, Reptilase and thrombin coagulase; low fibrinogen concentration determined by methods based on clot formation in comparison to the immunological fibrinogen determination; delayed fibrin polymerization). In addition, clinical features and diagnosis of dysfibrinogenemia are described in general.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 55 (1977), S. 323-327 
    ISSN: 1432-1440
    Keywords: Platelet morphology ; Platelet aggregation test ; Physical training of athletes ; Standardised ergometry ; Thrombocytenmorphologie ; Plättchenaggregationstest ; Körperlicher Trainingszustand ; Standardisierte Ergometrie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über morphologische Strukturanalysen der Thrombocyten unter körperlicher Belastung bei unterschiedlichem Trainingszustand berichtet. Die Untersuchungen wurden an 3 Probandengruppen zu je 15 Personen durchgeführt. Gruppe X bestand aus 15 Personen im Alter von 20–26 Jahren mit gelegentlicher Gymnastik, Gruppe Y umfaßte 15 Probanden im Alter von 44–52 Jahren ohne wesentliches körperliches Training, und Gruppe Z enthielt 15 Leistungssportler im Alter von 22–25 Jahren. Die Thrombocytenveränderungen wurden nach dem Plättchenaggregationstest (PAT) in 5 Stufen eingeteilt: Solitärstadium (Stufe I), Akkumulationsstadium (Stufe II), Degranulationsstadium (Stufe III), Stadium der Fibrinbildung (Stufe IV), und Stadium der irreversiblen Aggregation (Stufe V). Nach dosierter Ergometerbelastung waren bei allen Probanden in Blutausstrichen eine Reduktion des Solitärstadiums und ein Anstieg der PAT-Stufen II–V zu ermitteln, mit Ausnahme der Leistungssportler. In Erholungsphasen von 5, 30 und 60 min nach der Belastung war eine deutlich verzögerte Rückkehr irreversibler Aggregate (PAT V), der Plättchenveränderungen im Stadium der Fibrinbildung (PAT IV), und des Degranulationsstadiums bei der Gruppe untrainierter älterer Probanden im Vergleich zu den Leistungssportlern nachweisbar. Die Untersuchungen könnten eine mögliche Erklärung für akute thrombotische Herztodesfälle bei Leistungssportlern sein. Sie sprechen andererseits aber für eine bessere Adaptation des thrombocytären Systems unter körperlicher Belastung bei guter organischer Leistungsfähigkeit Sporttreibender.
    Notes: Summary The morphology of thrombocytes of 45 volunteers in varying conditions of training was analysed under physical stress. The probands were divided in three groups of 15 each. Group X (aged 20–26 years) had occasional gymnastics training. Group Y (aged 44–52 years) was without any physical training, and Group Z consisted of athletes (aged 22–25 years) in good training condition. By means of the platelet aggregation test (PAT), thrombocyte changes were classified in 5 stages: solitary stage (I), accumulation stage (II), degranulation stage (III), fibrin forming stage (IV), irreversible aggregation stage (V). The probands were subjected to ergometer stress in exact dosage. With the exception of the athletes, all blood smears showed a decrease in stage I (solitary), and considerable increase in stages II–V. 5, 30, or 60 min after stress, the return of irreversible aggregates (PAT V), of platelet changes in the fibrin-forming stage (PAT IV), and in the degranulation stage (PAT III), was markedly delayed in Group Y (untrained older persons) when compared with the group of well-trained athletes. The observation may offer an explanation for some cases of acute thrombotic cardiac death among trained athletes. On the other hand, it may prove the better adaptation of the thrombocytic system during physical stress when athletes are in good physical condition.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 16 (1978), S. 367-373 
    ISSN: 1432-0630
    Keywords: 79.20 ; 82.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract O2 exposure of polycrystalline nickel at 300 K results in characteristics changes of secondary ion emission. These can be described by a model which is in good agreement with corresponding LEED, AES, XPS, and ΔΦ results of other authors. According to this model, oxygen can be bonded on Ni in at least five different phases: 1) chemisorption, indicated by a rapid increase of Ni+, Ni 2 + , and Ni2O+ (≦5 L); 2) a rearranged chemisorption layer, characterized by a drastic decrease of Ni+, Ni 2 + , and Ni2O+ (5–15 L); 3) nickel oxide (NiO) responsible for a strong NiO−- and NiO 2 − -emission (≦40 L); 4) oxygen on top of this NiO layer, producing a final increase of Ni+ and NiO+ and a O2-flash signal at 400 K (〉40 L); 5) bulk dissolved oxygen in thermal equilibrium with a chemisorption layer (after several exposure/heating cycles). During ion bombardment of a 100 L O2 exposed Ni surface these different binding states occur in a reversed order of succession. O2-flash signals at 400 and 1100 K, related to drastic changes in secondary ion emission at 400, 700, and 1100 K, reflect the disappearance of various oxygen binding states. The exchange between different oxygen phases was studied by16O2/18O2 isotope experiments.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 9 (1976), S. 247-251 
    ISSN: 1432-0630
    Keywords: LEED intensities ; Surface physics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A standard television system in combination with a processing computer is used for measurements of LEED beam intensities of a spot pattern. The video signal of the TV camera contains the intensity distribution of each spot. This can be integrated for one selected spot by the computer which also takes care of automatic background subtraction. The processing program controls the energy of the incident electron beam and follows the moving spot position. One integration of a profile and thus the measurement of one point of anI(E) curve takes 0.5 s or less. Diffracted beam currents down to 10−11 A can be detected with the present experimental set-up. The output is immediately displayed and recorded in final reduced formI/I 0.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 129 (1978), S. 83-92 
    ISSN: 1432-1076
    Keywords: Dacryocystitis neonatorum ; Hasner's membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The topography and morphology of the lacrimal ducts in newborn infants was demonstrated by means of post mortem dacryocystograms and microphotograms of histologic slides. Because of bends in the course of the lower tear duct, a percentage of probings will fail to effect satisfactory perforation of the Hasner membrane. In most cases, the soft texture of this membrane requires no more than syringing under pressure, using a hollow probe as described by Bangerter (1953).
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 119 (1975), S. 197-210 
    ISSN: 1432-1076
    Keywords: Pheochromocytoma ; V. cava catheterization ; Catecholamines in blood and tumor ; Therapy ; Malignancy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Ergebnisse und Besonderheiten der Diagnostik und Therapie des Phäochromocytoms im Kindesalter sind vorwiegendes Interesse bei der Darstellung von 2 Patienten im Alter von 10 und 12 Jahren. Früheren Berichten über insgesamt 155 Kinder werden Informationen über Prädilektionsstellen und Häufigkeit multipler Tumoren entnommen. Uns hat sich die Methode des Etagenkatheterismus der Vena cava als eine risikoarme Orienytierung über Topographie des Tumors und Höhe und Art der Katecholaminproduktion bewährt. Möglichkeiten und Grenzen dieser beim Kind nur wenig angewandten diagnostischen Methode werden vorrangig diskutiert. Die Behebung der subjektiven Beschwerden und die entscheidende Besserung der Veränderungen des Kreislaufs durch den Einsatz des Alphareceptorenblockers Dibencyline werden beschrieben. Die Entscheidung über die histologische Klassifizierung bezüglich benignen und malignen Wachstums erweist sich als unsicher.
    Notes: Abstract This paper reports the results and specific variations in diagnostic and therapy of pheochromocytoma in childhood. Two patients aged 10 and 12 years are described. Previous reports about 155 cases are summarized in respect to localization and frequency of occurence. In our experience the catheterization of the vena cava is a small-risque method to localize the tumor and to obtain informations about the amount and type of catecholamines. The value and limits of the diagnostic procedure—until now seldom used in children—are mainly discussed. The improvement of symptoms and the marked circulatory changes by the treatment with the alpha-adrenergic blocking agent Dibencyline are described. The histological differentiation between benign and malign growth proves to be uncertain.
    Type of Medium: Electronic Resource
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  • 7
    facet.materialart.
    Unknown
    Berlin : Periodicals Archive Online (PAO)
    Deutsche Zeitschrift für Philosophie. 27:9 (1979) 1102 
    ISSN: 0012-1045
    Topics: Philosophy
    Description / Table of Contents: BEMERKUNGEN UND BERICHTE
    Notes: Zum 30. Jahrestag der Gründung der DDR
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 257 (1979), S. 444-444 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 349 (1979), S. 632-632 
    ISSN: 1435-2451
    Keywords: Osteosynthesis with the fixateur externe ; Osteomyelitis ; Problem cases ; Fixateur-externe-Osteosynthese ; Osteomyelitis ; Problemfälle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Septische Problemfälle verlangen spezielle Kenntnisse für die Indikation und Montage einer Fixateur-externe-Osteosynthese, die in engem Zusammenhang mit anatomisch-topographischen, funktionellen und biomechanischen Ansprüchen stehen. Die biologischen Bedingungen der Behandlung sind durch das individuelle Verletzungsmuster, Ausmaß der Sequestrierung und Lokalisation des Defektes sowie Infektaktivität, Funktionszustand, Voroperation und Alter geprägt. - Eine Schematisierung entfällt, da sich unmittelbar Vergleichbares kaum wiederholt. Unsere Lösungen derartiger Problemfälle am infizierten Hüftgelenk, am Oberschenkel und bei ossären Defekten des Unterschenkels werden in der Ausstellung an Verlaufsserien in Weichteil- und Röntgenbildern vorgestellt.
    Notes: Summary Septic problem cases require special knowledge concerning indication and assembly of a fixateur externe osteosynthesis, knowledge which is closely connected with anatomic-topographic, functional, and biomechanical demands. The biological conditions of the treatment are determined by the individual pattern of the wound, the degree of sequestration, and by the localisation of the damage as well as the infective activity, the functional condition, by previous operations, and by age. A general pattern for the treatment cannot be given, as directly comparable cases rarely occur. Our solutions of such problem cases on an infected hip joint, on the upper leg, and on osseous damage on the lower leg are presented in the exhibition on development showing soft-tissue and x-ray photographs.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 349 (1979), S. 331-333 
    ISSN: 1435-2451
    Keywords: Alloarthroplasty ; Carbon fibre plastic compound ; Anchorage without bone cement ; Alloarthroplastik ; Kohlefaserverbundwerkstoff ; Zementfreie Verankerung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Vorgestellt wird ein neuer Faserverbundwerkstoff aus in Epoxydharz oder Polymethylmetacrylat eingebetteten hochfesten Kohlefasern zur Herstellung einer Hüftendoprothese, die durch ein neuentwickeltes Spannstiftsystem zementfrei verankert werden kann und eine ausreichende primäre Fixation und Rotationsstabilität bietet. Daten der Materialeigenschaften wie Biegebruchfestigkeit, Dauerschwingfestigkeit, E-Modul werden beschrieben. Ebenso Tierversuche an 26 Hunden und deren Auswertung.
    Notes: Summary A new carbon fibre plastic compound consisting of epoxy resin or polymethyl methacrylate as matrix for a total hip endoprosthesis is demonstrated. The newly developed spreader bar system allows an anchorage without bone cement and achieves a sufficient primary fixation as well as a rotating stability. Material characteristics concerning the bending and tension strength and the E-modulus are described as well as animal experiments and their results on 26 dogs.
    Type of Medium: Electronic Resource
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