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  • 1
    Electronic Resource
    Electronic Resource
    Investigation of Ion-Conducting Ormolytes: Structure-Property Relationships (1994)
    s.l. : American Chemical Society
    Chemistry of materials 6 (1994), S. 127-134 
    Details
    ISSN: 1520-5002
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/cm00038a007
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  • 2
    Electronic Resource
    Electronic Resource
    Two portions of the supraspinatus muscle: a new finding about the muscles macroscopy by dissection and magnetic resonance imaging (1994)
    Springer
    Surgical and radiologic anatomy 16 (1994), S. 101-104 
    Details
    ISSN: 1279-8517
    Keywords: Supraspinatus muscle ; Anatomy ; MR imaging ; Fusiform muscle ; Straplike muscle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les coupes axiales d'épaule obtenues en IRM montrent une bande linéaire centrale à l'intérieur du m. supra-épineux, vide, qui ne semble pas représenter uniquement le tendon de ce muscle. En raison de l'importance du m. supraépineux dans les syndrômes douloureux de l'épaule, nous avons étudié l'architecture fibreuse de ce muscle, en comparant 30 imageries par résonnance magnétique nucléaire et 49 dissections cadavériques. Nous avons trouvé que le m. supra-épineux était composé de deux parties distinctes. La longueur moyenne de la partie ventrale est de 88 mm et celle de la partie dorsale de 106 mm. L'angle du tendon central qui est formé par les fibres des deux parties musculaires, fait 50° avec le plan frontal. Les deux parties musculaires agissent probablement différemment dans les mouvements du bras. Ces constatations semblent être importantes pour la physiopathologie des ruptures de la coiffe des rotateurs, qui sont principalement situées en avant, dans la partie ventrale du muscle et dans le tendon central excentrique.
    Notes: Summary Axial MR images of the shoulder joint reveal a central linear band within the supraspinatus muscle void of signal which seems not to represent the only tendon of this muscle. Due to the importance of the supraspinatus muscle for the painful impingement syndrome of the shoulder we studied the fibrous architecture of this muscle comparing 30 MR images and 49 cadaver dissections. We found the supraspinatus muscle to be composed of two distinct portions. The mean length of the ventral portion is 88 mm and of the dorsal portion 106 mm. The angle of the central tendon which is formed by fibers of both muscle portions relative to the frontal plane is 50°. Both muscle portions probably act differently in moving the arm. This finding seems to be important for the pathophysiology of rotator cuff tears which are mainly located anteriorly within the ventral muscle portion and the eccentric central tendon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01627931
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  • 3
    Electronic Resource
    Electronic Resource
    The extravascular contractile system in the human placenta (1994)
    Springer
    Anatomy and embryology 190 (1994), S. 541-548 
    Details
    ISSN: 1432-0568
    Keywords: Human placenta ; Smooth muscle-like cells ; Perivascular contractile sheath ; Nitric oxide synthase type I ; Dipeptidyl peptidase IV
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In the human placenta, besides the fetal blood vessel system a second extravascular contractile system exists. It is localized in the chorionic plate and runs in a longitudinal direction and adjacent to fetal blood vessels into the stem villi, where it forms perivascular contractile sheaths. Characteristically, cells of the extravascular contractile system are extremely long and spindle-shaped and give rise to fine cell processes, by which they obviously contact each other or insert into the basement membrane of the trophoblast. They show immunoreactivity with desmin, vimentin, α-actin, myosin, nitric oxide synthase type I (brain form) and dipeptidyl peptidase IV. The ultrastructure suggests that cells of the extravascular contractile system are related to smooth muscle cells, including subpopulations with myofibroblastic features. In stem villi a few cells are nitric oxide synthase type I immunoreactive. These cells are thought to be specialized smooth-muscle-like cells of the extravascular contractile system or cells of the extravascular contractile system related to paraneurons that generate nitric oxide, which, in turn, may modulate the tone of perivascular contractile sheaths. The high dipeptidyl peptidase IV activity suggests that modulation of the extravascular contractile system may also occur by substance P.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00190104
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  • 4
    Electronic Resource
    Electronic Resource
    Isozymes and general protein patterns as taxonomic markers in the taxon Nephtyidae (Annelida Polychaeta) (1994)
    Springer
    Marine biology 119 (1994), S. 31-38 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Seven Nephtys species and one species of the genus Aglaophamus (collected from different European tidal and subtidal locations between 1989 and 1991) were compared with respect to six isozyme systems (α-amylase, esterase, hexokinase, malate dehydrogenase, malic enzyme, phosphoglucoseisomerase) as well as with respect to general protein patterns with non-specific staining. The proteins were obtained from the tissue (proboscis, individual segments) of single individuals, the species of which had previously been accurately determined, and were separated by isoelectric focusing (IEF) in polyacrylamide gels. The enzymes were identified by their specific catalytic activities, and the general proteins were visualized by silver staining. All the isozymes proved to be monomorphic within each of the various polychaete populations. With a single exception, it was impossible to distinguish geographically separated populations of the same species, because the band patterns were completely consistent within the species. The individual enzymes varied in their suitability for species differentiation. Only with respect to esterase and α-amylase could all species be distinguished; the other enzymes studied were identical in morphologically similar species. In contrast, each species could be identified by its general protein pattern, although some species differed from others in the position of a few bands only. Individuals of N. hombergii, N. caeca and N. cirrosa with abnormally shaped parapodia, as well as juvenile nephtyids, could be unequivocally assigned to their respective species by IEF. Only in the case of N. longosetosa were two morphological variants found to differ in their electrophoretic characteristics; one of them is interpreted as a new species, not previously described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00350103
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  • 5
    Electronic Resource
    Electronic Resource
    Interference of continuous venovenous haemofiltration with vasoactive drug administration (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 49 (1994), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1994.tb04433.x
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  • 6
    Electronic Resource
    Electronic Resource
    Genetic Relationships in Malus Evaluated by RAPD ‘Fingerprinting’ of Cultivars and Wild Species (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 113 (1994), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The potential use of RAPD markers for taxonomic studies in Malus was investigated using 18 accessions of wild species and 27 apple cultivars. 29 preselected random decamer primers were applied to three sets of Malus genotypes. Random amplified polymorphic DNA (RAPD) ‘fingerprints’ were analysed for polymorphic amplification fragments, and coefficients estimating genetic similarity were calculated on the basis of about 50 polymorphic RAPD loci in each set of genotypes. Cluster analysis by an unweighted pair-group method with arithmetic averages (UPGMA) revealed that, in the cultivars, the molecular classification was in good agreement with the known lineage. A dendrogram generated for the wild species gave relationships that were, in principle, in accordance with the known phylogenetic information. Closely related species from section I were clearly distinguishable from those of sections III and IV. On the molecular level, a high degree of genetic diversity was found among both different apple cultivars and wild species of the genus Malus. The results gave additional evidence for the hypothesis that M. pumila and M. sylvestris were involved in the origin of the cultivated apples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1994.tb00717.x
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  • 7
    Electronic Resource
    Electronic Resource
    Superiority of continuous intra-arterial blood gas monitoring over pulse oximetry in patients with acute respiratory failure (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 49 (1994), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1994.tb03553.x
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  • 8
    Electronic Resource
    Electronic Resource
    Polymetalates based organic-inorganic nanocomposites (1994)
    Springer
    Journal of sol gel science and technology 3 (1994), S. 189-197 
    Details
    ISSN: 1573-4846
    Keywords: nanocomposites ; sol-gel ; heteropolymetalates ; photochromics ; electrochemical properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract New nanocomposites materials have been synthesized. They present electrochemical and photochromic properties. They are based on a hybrid organic-inorganic network, in which tungsten heteropolyoxometalates (PW12O 40 3− , SiW12O 40 4− , W10O 32 4− , polymeric tungstate) are entrapped. High tungsten ratios could be reached and films or bulk materials have been obtained. The structure of these materials is described on the basis of multi-spectroscopic investigations (IR, EPR, NMR). Electrochemical redox reactions have been observed in thin films. Dark blue reversible coloration of the materials is obtained under UV irradiation. The photochromic mechanism has been investigated and shows the reversible formation of carbonyl group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486557
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  • 9
    Electronic Resource
    Electronic Resource
    Preparation and photochromic properties of dye-doped aluminosilicate and ORMOCER gels and coatings (1994)
    Springer
    Journal of sol gel science and technology 2 (1994), S. 635-639 
    Details
    ISSN: 1573-4846
    Keywords: ORMOCER ; organic dye ; photochromism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Aluminosilicate and ORMOCER gels and coatings containing photochromic dyes, 1, 3-dihydro-1, 3, 3-trimethylspiro-[2H-indole-2, 3′-[3H]-naphth-[2, 1-b][1, 4]-oxazine] (SO) and 1′, 8a′-dihydro-2′, 3′-dimethoxycarbonyl-spiro [fluorene-9, 1′-indolizine] (DHI), were prepared by the sol-gel method and the photochromic activity was monitored in the course of the sol-wetgel-xerogel transformation. The photochromic activity of the aluminosilicate gels decreases rapidly and even vanishes in the wetgel-xerogel stage while that of ORMOCER gels and coatings levels off in the early wetgel-xerogel stage at a reasonably high photochromic intensity with the colour-fading speed similar to that in ethanol and the photostability being considerably improved. The experimental results are discussed in terms of the matrix effect on photochromism of organic dyes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486324
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  • 10
    Electronic Resource
    Electronic Resource
    High power continuous-wave diode-laser-pumped Nd:YAG laser (1994)
    Springer
    Applied physics 58 (1994), S. 389-392 
    Details
    ISSN: 1432-0649
    Keywords: 42.55.Rz ; 42.60By ; 42.60Da
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report on a diode-laser-pumped cw Nd: YAG laser operating at a power level of 150 W. By using a transverse pump geometry, the radiation of 54 diode lasers with an output power of 10 W each is coupled into a Nd:YAG rod. In multimode operation, an optical slope efficiency of 32% and an optical to optical efficiency of 29% are obtained. In TEM00 operation, an output power of more than 30 W is realized with an optical to optical efficiency of 10%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01081878
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