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  • 1
    Electronic Resource
    Electronic Resource
    Thermography in the determination of amputation levels in ischaemic limbs (1986)
    Springer
    International orthopaedics 10 (1986), S. 79-81 
    Details
    ISSN: 1432-5195
    Keywords: Ischaemic limbs ; Amputation ; Thermography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La fiabilité de la thermographie pour déterminer le niveau d'amputation des membres inférieurs ischémiques a été comparée à celles de la mesure du Doppler et de l'appréciation clinique d'un chirurgien expérimenté. Les résultats montrent que la thermographie tend à surestimer l'étendue de l'ischémie et à indiquer un niveau d'amputation plus haut que nécessaire. On discute des avantages et des limites de chaque méthode pour conclure que l'appréciation du chirurgien est la plus sûre et que les autres examens ne constituent qu'un complément de l'évaluation clinique.
    Notes: Summary The reliability of thermography for the determination of the level of amputation for an ischaemic lower limb was compared with that of the doppler flowmeter and the clinical judgement of an experienced surgeon. The results showed that thermography tended to overestimate the degree of ischaemia and to indicate a higher level of amputation than was necessary. The advantages and the limitations of each method are discussed. It is concluded that the clinical judgement of the surgeon was the most reliable method and that the other investigations are only an adjunct to clinical assessment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00267745
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of the erect posture on the development of the lumbosacral region (1987)
    Springer
    Surgical and radiologic anatomy 9 (1987), S. 69-73 
    Details
    ISSN: 1279-8517
    Keywords: Spine ; lumbosacral junction ; Comparative anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Une étude sur l'animal a été entreprise pour préciser les effets de la posture verticale sur le développement de la jonction lombo-sacrée. Des singes rhésus, qui sont capables de s'asseoir en position verticale, ont été comparés avec des quadrupèdes (rats, lapins, chiens) dont la colonne lombo-sacrée est plus ou moins horizontale. Ce travail a permis de mettre en évidence un fait important qui est la présence d'un ligament ilio-lombaire chez le singe rhésus provenant de l'apophyse transverse de la dernière et éventuellement de l'avant-dernière vertèbre lombaire et allant jusqu'à l'aile iliaque. Ce ligament est absent chez les quadrupèdes. Les auteurs en ont déduit que le développement de cette formation ligamentaire est en grande partie liée aux contraintes que supporte la colonne lombosacrée dans la position verticale.
    Notes: Summary An animal study was carried out to gain better understanding on the effect of erect posture in the development of the lumbosacral junction. Rhesus monkeys which are able to sit in an upright position were compared with quadrupeds, including rats, rabbits and dogs, whose lumbosacral spines are normally more or less horizontal. The important finding was the presence of the iliolumbar ligament in the rhesus monkey which attached to the last, occasionally the second last, lumbar transverse process and the adjacent iliac wing. A similar ligament was absent in the quadrupeds. We postulate that the stresses created across the lumbosacral junction as a result of the erect posture in the rhesus monkey have played an important role in stimulating the formation of this ligament.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02116856
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  • 3
    Electronic Resource
    Electronic Resource
    Electron transport in highly compensated, plastically bent,n-type InSb in the temperature range 4.2–300 K (1986)
    Springer
    Journal of low temperature physics 63 (1986), S. 169-186 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Measurements of the Hall coefficient, dc electrical conductivity, and magnetoresistance have been made on two highly compensated, plastically bent,n-type InSb samples from liquid helium to room temperature. The number and Hall mobility of charge carriers and the electrical conductivity are greatly affected by plastic bending. The mobility decreases appreciably and the number of charge carriers increases in both the deformed samples. This increase of effective charge carriers can be attributed to the introduction of effective donor centers due to plastic bending. The electrical conductivity in one of the deformed samples increases between the temperature ranges 4.2–15 K and 125–190 K compared to that of the undeformed state of the sample. This unusual increase in σ is attributed to the large increase inn value. The magnetoresistance at 4.2 K is due to impurity-band conduction and is found to be positive. It shows approximately a linear variation with magnetic field in both the deformed samples. The observed behavior of the magnetoresistance at 300 K is consistent with the behavior expected for free electrons. The observed Δρ/ρ at 77.4 K is found to be less than that at 300 K and is explained in terms of the Hall mobility values at these two temperatures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00683763
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  • 4
    Electronic Resource
    Electronic Resource
    Ultrasonic characterization of tubing pinch welds (1988)
    Springer
    Journal of nondestructive evaluation 7 (1988), S. 217-225 
    Details
    ISSN: 1573-4862
    Keywords: Ultrasonics ; pinch welds ; solid-state bonds ; grain scattering
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: Abstract Spatially-focused, high-frequency ultrasonic pulses have been used in the evaluation of the quality of stainless steel tubing pinch welds. Experimentally, echoes from the bond plane were generally too weak to observe, except in bond planes with macrocracking. Correlations were therefore sought between bond quality and the amplitude and spectral features of the back-surface echo that has passed through the bond plane twice. Linear scans of the back-surface echo parallel and perpendicular to the tubing axis were made on pinch welds of four classes of bond quality. Trends, with scatter, were observed between the ultrasonic parameters and bond quality. These experimental results were interpreted using the Stanke-Kino theory of ultrasonic attenuation due to grain scattering to relate the microstructural changes caused by the pinch-weld process to the observed ultrasonic signals. The results illustrate the importance of process-related changes in near-bond microstructure in attempts to nondestructively determine bond strength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00566004
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  • 5
    Electronic Resource
    Electronic Resource
    Photo-oxidative degradation and stabilization of poly(4-methyl pentene-1) (1988)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 39 (1988), S. 265-267 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1988.010390513
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  • 6
    Electronic Resource
    Electronic Resource
    Uptake and Release of γ-Aminobutyric Acid in the Guinea Pig Cochlear Nucleus After Axotomy of Cochlear and Centrifugal Fibers (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 45 (1985), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: This study attempts to determine if γ-aminobutyric acid (GABA) may be a transmitter of cochlear nerve fibers projecting from the cochlea to the cochlear nucleus, and of centrifugal fibers projecting to the cochlear nucleus via the trapezoid body and the acoustic striae of the medulla. The uptake and the electrically evoked release of exogenous [14C]GABA were measured, in vitro, in the three major subdivisions of the guinea pig cochlear nucleus: the anteroventral, posteroventral, and dorsal cochlear nuclei. These activities were compared using unlesioned animals, animals with bilateral cochlear ablations, and animals whose trapezoid body and acoustic striae were interrupted on the right side of the medulla. Subdivisions from unlesioned animals took up [14C]GABA, achieving concentrations in the tissues that were 11–19 times that in the medium. Electrical stimulation evoked a Ca2+-dependent release of [14C]GABA from each subdivision. Bilateral cochlear ablation, which presumably destroyed the cochlear nerve fibers, had no effect on [14C]GABA uptake and release. Section of the trapezoid body and the acoustic striae on the right side of the medulla typically severed all known connections of the right posteroventral and dorsal cochlear nuclei with the rest of the brain, but left intact many connections involved with the right anteroventral cochlear nucleus. This lesion partially depressed [14C]GABA uptake and release in the right posteroventral and dorsal cochlear nuclei, but not in the right anteroventral cochlear nucleus. These findings suggest that one or more of the centrifugal tracts projecting to the cochlear nucleus may be GABAergic, 88% or more of the cochlear nerve fibers probably are not GABAergic, and some neurons of the cochlear nucleus are probably GABAergic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1985.tb07227.x
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  • 7
    Electronic Resource
    Electronic Resource
    Neuronotrophic Factors Released by C6 Glioma Cells (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 50 (1988), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: Glial cells have been shown previously to release factors that promote survival of central and peripheral neurons [neuronotrophic factors (NTFs)]. We have investigated the release of NTFs by C6 cells, a rat glioma cell line, under different modes of conditioning. Media conditioned in the presence or absence of serum [C6 cell conditioned media (C6CMs)] were analyzed using biological, biochemical, and immunological assays. We report that (a) nuclear and cytoskeletal proteins were not present in C6CMs, indicating that C6CM proteins result from release by C6 cells rather than from cell death; (b) C6CM contained 1–3 μg protein/ml, corresponding to a secretion rate of about 0.5 pg protein per cell and day; (c) C6CM contained the neurite-promoting factor laminin and low amounts of nerve growth factor; (d) the presence of fetal calf serum in the culture medium was essential for synthesis and release of NTFs; and (e) our C6CM contained at least three NTFs differing by their temporal secretory patterns and three NTFs differing by biochemical properties, indicating that C6 cells produce and secrete six different NTFs. Within these, nerve growth factor seems to be the only established NTF.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1988.tb02474.x
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  • 8
    Electronic Resource
    Electronic Resource
    Chemistry and positive inotropic effect of pelrinone and related derivatives. A novel class of 2-methylpyrimidones as inotropic agents (1988)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 31 (1988), S. 814-823 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00399a023
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  • 9
    Electronic Resource
    Electronic Resource
    Uterine activity in the second stage of labour and the effect of epidural analgesia (1985)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 92 (1985), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. Uterine activity was measured during the second stage of normal labour in 20 patients with and 31 patients without epidural analgesia. There was a significantly lower uterine activity integral (UAI) in patients having epidural analgesia, and it is suggested t h a t this may contribute to the increased rate of instrumental delivery associated with epidural analgesia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1985.tb04870.x
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  • 10
    Electronic Resource
    Electronic Resource
    (1) Commentary. The obstetric vacuum extractor is the instrument of first choice for operative vaginal delivery. (1989)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 96 (1989), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1989.tb06318.x
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