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  • 1995-1999  (2)
  • 1860-1869
  • Functional bracing.  (1)
  • Key words: Electron paramagnetic resonance  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Konservative und operative Therapie traumatischer Oberarmschaftbrüche (1997)
    Springer
    Der Chirurg 68 (1997), S. 1132-1136 
    Details
    ISSN: 1433-0385
    Keywords: Key words: Humeral shaft fractures ; Osteosynthesis ; Intramedullary nailing ; Functional bracing. ; Schlüsselwörter: Oberarmschaftbrüche ; Osteosynthese ; Marknagelung ; funktionelle Behandlung.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Es wurden 63 Patienten mit einer Oberarmschaftfraktur durchschnittlich 18 Monate nach Unfall sowohl klinisch als auch radiologisch nachuntersucht. 27 Patienten (Gruppe A) wurden operativ und 36 Patienten (Gruppe B) konservativ behandelt. Die Analyse der Ergebnisse nach einem Punktescore nach Kwasny ergab durchschnittlich 6,7 Punkte für Gruppe A und 2,2 Punkte für Gruppe B zu Gunsten des konservativen Vorgehens (p 〈 0,0001; F = 46,9). In den 2 miteinander vergleichbaren Gruppen war die konservative Therapie der chirurgischen Versorgung von Oberarmschaftbrüchen sowohl bzgl. Beweglichkeit von Schulter- und Ellbogengelenk, Kraftminderung, dem Auftreten neurologischer Störungen und von Schmerzen sowie der subjektiven Bewertung der Behandlung und der Kosmetik durch die Patienten überlegen. Die Auswertung der radiologischen Ergebnisse ergab keine Unterschiede (p = 0,48).
    Notes: Summary. Sixty-three patients with humeral shaft fractures were evaluated clinically and radiographically 18 months after injury; 27 patients were treated surgically (group A) and 36 patients conservatively (group B). Analysis of the results according to a score by Kwasny revealed 6.2 points in group A and 2.2 points in group B (P 〈 0.0001; F = 46.9). The results of these two comparable groups suggest that conservative treatment of humeral shaft fractures is superior regarding mobility of the shoulder and elbow, strength, the incidence of neurological complications, pain, subjective rating and cosmesis. There were no differences on roentgenograms between the two groups (P = 0.48).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001040050333
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Frost hardening and photosynthetic performance of Scots pine (Pinus sylvestris L.). II. Seasonal changes in the fluidity of thylakoid membranes (1998)
    Springer
    Planta 204 (1998), S. 201-206 
    Details
    ISSN: 1432-2048
    Keywords: Key words: Electron paramagnetic resonance ; Frost hardening ; Membrane fluidity ; Photoperiod ; Scots pine ; Thylakoid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract. The fluidity of chloroplast thylakoid membranes of frost-tolerant and frost-sensitive needles of␣three- to four-year-old Scots pine (Pinus sylvestris L.) trees, of liposomes produced from the lipids of the thylakoids of these needles, and of liposomes containing varying amounts of light-harvesting complex (LHC) II protein was investigated by means of electron paramagnetic resonance (EPR) measurements using spin-labelled fatty acids as probes. Broadening of the EPR-resonance signals of 16-doxyl stearic acid in chloroplast membranes of frost-sensitive needles and changes in the amplitudes of the peaks were observed upon a decrease in temperature from +30 °C to −10 °C, indicating a drastic loss in rotational mobility. The lipid molecules of the thylakoid membranes of frost-tolerant needles exhibited greater mobility. Moderate frost resistance could be induced in Scots pine needles by short-day treatment (Vogg et al., 1997, Planta, this issue), and growth of the trees under short-day illumination (9 h) resulted in a higher mobility of the chloroplast membrane lipids than did growth under long-day conditions (16 h). The EPR spectrum of thylakoids from frost-tolerant needles at −10 °C was typical of a spin label in highly fluid surroundings. However, an additional peak in the low-field range appeared in the subzero temperature range for the chloroplast membranes of frost-sensitive needles, which represents spin-label molecules in a motionally restricted surrounding. The EPR spectra of thylakoids and of liposomes of thylakoid lipids from frost-hardy needles were identical at +30 °C and −10 °C. The corresponding spectra from frost-sensitive plants revealed an additional peak for the thylakoids, but not for the pure liposomes. Hence, the domains with restricted mobility could be attributed to protein-lipid interactions in the membranes. Broadening of the spectrum and the appearance of an additional peak was observed with liposomes of pure distearoyl phosphatidyl glycerol modified to contain increasing amounts of LHC II. These results are discussed with respect to a loss of chlorophyll and chlorophyll-binding proteins in thylakoids of Scots pine needles under winter conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004250050247
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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