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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Helgoland marine research 36 (1983), S. 277-283 
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The macrobenthic fauna associated withFucus at a station in the Kiel Fjord was investigated from June 1978 until June 1979. The predominant group in number as well as in biomass were gammarids. They formed, together with the isopodsIdotea spp., approximately 95 % of the total average annual biomass. The total dry weight of all macrobenthic animals (excl.Littorina spp.) increased from 1.9 g per kgFucus in May to about 16 g in June–August, and dropped to 8.3 g in September. Winter average dry weight values were only about 6 % of the summer values.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European food research and technology 147 (1971), S. 95-95 
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 69 (1971), S. 246-263 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Avec une machine universelle servant à mesurer la tension, on a examiné les particularités mécaniques de l'aponévrose humaine par rapport à l'âge des malades, à la conservation et au trajet des faisceaux. On a pu en déduire les mesures mécaniques suivantes: l'indice de la tangente, la résistance de la tension, l'allongement dû à la force maximale, la montée de la courbe de relaxation. Avec l'avancemant en âge on pouvait oberver un accroissement de la fixité de l'indice de la tangente. Les prélévement naturels ainsi que les prélévements cialites montraient une tendance à des veleurs plus hautes de résistance et de l'indice de la tangente au contraire des prélévements lyophilisés. Les grandeurs mécaniques de résistance montraient une dépendance nette de l'angle du trajet des faisceaux et de la direction de la tension. On a discuté du rapport des transformations mécaniques constatées suivant l'âge et des examens physico-cliniques et électroniques-microscopiques chez d'autres. On a montré la wécessité de connaître les particularites mécaniques de l'aponéarose pour l'emploi clinique comme greffe homo- et autologue.
    Abstract: Zusammenfassung Mit dem Universalprüfgerät (Modell Instron TT-MC) wurde menschliche Fascie auf ihre alters-, konservierungs- und faserverlaufsbedingten mechanischen Eigenschaften untersucht. Folgende mechanische Kenngrößen wurden bestimmt: Tangentenmodul, Zugfestigkeit, Dehnung bei Höchstkraft, Steigung der Relaxationskurve. — Eine zunehmende Verfestigung konnte mit Zunahme des Lebensalters festgestellt werden. — Eine Tendenz zu höheren Zugfestigkeits-und Tangentenmodulwerten zeigten die nativen sowie cialit-konservierten im Gegensatz zu den lyophilisierten Proben. Die mechanischen Kenngrößen zeigten eine deutliche Abhängigkeit vom Winkel zwischen Faserverlauf und Zugrichtung. Ein Zusammenhang der festgestellten altersabhängigen mechanischen Veränderungen mit physiko-chemischen und elektronenmikroskopischen Untersuchungen anderer Autoren wird diskutiert. Auf die Notwendigkeit der Kenntnis der mechanischen Eigenschaften der Fascie bei ihrer klinischen Verwendung als homo- und autologes Transplantat wird hingewiesen.
    Notes: Summary Human fascia has been examined with the aid of a universal test equipment as to its mechanical properties in relation to age, conservation and texture. The following mechanical characteristics have been determined: Tangent module, firmness, extension under appliance of maximal force and increase of the relaxation curve. An increasing hardening could be stated with advancing age. A tendency towards higher values of firmness and tangent modules became evident with native and cialit conserved samples in contrast to such treated by means of lyophilization. The mechanical characteristics revealed a definite dependence from the angle between texture and direction of extension. The correlation of the stated mechanical changes depending on age is discussed together with physico-chemical and electronmicroscopic investigations of other authors. It is pointed to the necessity of knowledge on the mechanical properties of fascia when using it clinically as a homologous or heterologous transplant.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 66 (1969), S. 95-102 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé On a procédé à l'examen d'un domaine particulier du comportement mécanique des différentes textures structurèes du tissu conjonctif. On a pu constater que le compartement de l'élongation et de la diminution dêpendait de la texture, de l'âge et de la conservation en relation avec la transplantation homologue du tissu conjonctif conservé. Parmi les trois textures examinées: la peau, la duremère et l'aponéurose, la peau montre les plus grandes valeurs d'élongation et de déformation résiduelle. Le groupe d'âge II (60 ans) moutrait en général de faibles valeurs d'élongation et de déformation résiduelle indépendamment de la texture. La dépendance de la conservation était manifeste. La lyophilisation provoquait la plupart des temps de plus fortes valeurs d'élongation.
    Abstract: Zusammenfassung Ein Teilbereich des mechanischen Verhaltens verschieden strukturierter Bindegewebstexturen wurde untersucht. Die Abhängigkeit des Dehnungs- und Entdehnungsverhaltens von Textur, Alter und Konservierung wurde in Sicht auf die homologe konservierte Bindegewebstransplantation festgestellt. Von den drei untersuchten Texturen: Corium der Haut, Dura mater und Fascie zeigt die Haut die größten Dehnungs- und Dehnungsrückstandswerte. Die Altersgruppe II (um 60 Jahre) zeigte durchwegs geringere Dehnungs-und Dehnungsrückstandswerte unabhängig von der Textur. Konservierungsbedingte Abhängigkeit war offensichtlich. Die Lyophilisation verursachte meist höhere Dehnungswerte.
    Notes: Summary The mechanical properties of connective tissue textures of different structure have been studied as to certain aspects. The elongation of homologous connective tissue transplants has been determined in dependence on texture, age and conservation method. Of the three textures examined (cutaneous corium, dura mater and fascia) the highest values of elongation and residual deformation have been found with skin. The age group II (about 60 years) in general revealed low values of elongation and residual deformation independent from the texture. The dependence on the type of conservation was obvious. Lyophilization usually caused higher values of expansion.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 24 (1936), S. 331-336 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1433-3023
    Keywords: Female ; Incontinence ; Prolapse ; Ring pessary
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of the study was to evaluate the use of a vaginal pessary in the detection of genuine stress incontinence (GSI) in women with urogenital prolapse undergoing urodynamic investigation. Continent women with urogenital prolapse, with or without associated urinary symptoms, were studied. All underwent video-cystourethrography using a standarized protocol. None had evidence of incontinence on provocative testing in the upright position. A well-fitting vaginal ring pessary was inserted to reduce the prolapse and mimic a vaginal repair. The provocative tests were then repeated while the bladder was screened. Seventy women with a mean age 59.0 years (range 34–83) were recruited over a 21-month period: 15 women complained of prolapse alone and 55 had concurrent urinary symptoms; 19 women (27%) developed GSI only following the insertion of a vaginal pessary. The women who became incontinent were significantly older (mean age 63.9 years) than those who remained continent (mean age 56.8 years) (P〈0.020). The use of a vaginal pessary increases the detection rate of GSI in continent women with urogenital prolapse undergoing videocystourethrography. These findings are important becasuse women with prolapse and coexisting incontinence should be offered a continence procedure rather than a simple vaginal repair.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 2 (1964), S. 294-333 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Résumé Le coefficient de dilatation thermique de quelques métaux purs a été mesuré dans le domaine de température de 1,5° à 12°K. Les métaux suivants, tous à l’état polycristallin à l’exeption du Tantal, out été étudiés: Al, Pb, Pt, Mo, Ta, W, Mg, Cd, Re, Ti, La, Ce, Nd, Gd, Yb. A des températures suffisamment basses, le coefficient de dilatation thermiqueβ=1/V (∂V/∂T) [V = volume,T = température] se compose, en accord avec la théorie, d’un terme lineaire enT, dû aux électrons, et d’un terme cubique enT, attribuable au réseau cristallin. A l’état supraconducteur (Pb, Ta, La) le terme dû aux électrons se comporte différemment. Les métaux de terres rares Gd, Ce et Nd présentent, dans le coefficient de dilatation, des anomalies négatives qui dépendent du ferro- ou de l’antiferromagnetisme de ces substances, selon le cas. Les résultats sont discutés à l’aide de la théorie dynamique du réseau cristallin et la théorie des métaux.
    Abstract: Abstract The thermal expansion coefficients of the following metals in the temperature region between 1,5° and 12°K have been measured: Al, Pb, Pt, Mo, Ta, W, Mg, Cd, Re, Ti, La, Ce, Nd, Gd, Yb. Except for tantalum all the specimens were polycrystalline. Is is found in accordance with theoretical prediction that the coefficient of thermal expansionβ=1/V (∂V/∂T) [whereV = volume,T = temperature] at sufficiently low temperatures is composed of an electronic component varying linearly with temperature, and a lattice component varying as the cube of the temperature. The electronic component is strongly modified in the superconducting state (Pb, Ta, La). The rare earth metals Gd, Ce and Nd have negative anomalies in their expansion. These are connected with the ferro- and antiferromagnetism of these substances. The results are discussed on the basis of lattice dynamics and the theory of electrons in metals.
    Notes: Zusammenfassung Es wurde die thermische Ausdehnung von einigen reinen Metallen im Temperaturgebiet zwischen 1,5° und 12°K gemessen. Die folgenden Metalle (mit Ausnahme von Tantal alle in polykristallinem Zustand) wurden untersucht: Al, Pb, Pt, Mo, Ta, W, Mg, Cd, Re, Ti, La, Ce, Nd, Gd, Yb. In Übereinstimmung mit der theoretischen Erwartung setzt sich der thermische Ausdehnungskoeffizientβ=1/V (∂V/∂T) [V = Volumen,T = Temperatur] bei genügend tiefen Temperaturen aus einem linear mit der Temperatur variierenden Elektronenanteil und einem kubisch mit der Temperatur variierenden Gitteranteil zusammen. Im supraleitenden Zustand (Pb, Ta, La) wird der Elektronenanteil stark verändert. Die seltenen Erdmetalle Gd, Ce und Nd weisen negative Anomalien im Ausdehnungskoeffizienten auf, welche mit dem Ferro- bzw. Antiferromagnetismus dieser Substanzen zusammenhängen. Die Resultate werden diskutiert auf Grund der Theorien der Kristallgitter-Dynamik und der Metallelektronik.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Biotechnology techniques 6 (1992), S. 97-104 
    ISSN: 1573-6784
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary The principles of two new techniques for monitoring oxygen in the gas phase of fermentation processes are presented. In addition, the application of both methods on real fermentation processes is given to show their potential in comparsion with well established methods.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 21 (1982), S. 511-516 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Описана закрываемая пробоотборная ловушка, с помощью которой можно улавливать и хранить до проведения ГХ анализа импулясы веществ в импульсных каталитических экспериментах. Все углеводороды, включая метан, могут быть количественно уловлены из потока газа-носителя. Оборудование ГХ быделяется из импульсной схемы, что дает преимущества в методике и временной организации экспериментов. Ловушки были использованы в исследовании восстановления алюмо-хромового катализатора.
    Notes: Abstract A closeable sampling trap is described which can be used in catalytic pulse experiments to trap substance pulses and to store them until gas chromatographic analysis is performed. All hydrocarbons including methane may be trapped quantitatively from the carrier gas stream. The GC equipment is removed from the pulse apparatus which has a favorable effect on methods and timing of the experiments. The traps were employed in an investigation of the reduction of a chromia/alumina catalyst.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 20 (1982), S. 203-205 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Превращение пролилена и выход акрилонитрила в процессе аммоокисления с повышением содержания окиси кремния в железо-сурьмяных окислах. При окислении происходит наоборот, превращение пропилена и выход акролеина возрастают при более высоком содержании окиси кремния в катализаторах. Эти результаты показывают, что овразование акрилонитрила не поисходит через стадию акролеина.
    Notes: Abstract The conversion of propene and the yield of acrylonitrile decrease during ammoxidation with increasing content of silica support of iron-antimony oxides. In constrast to that, during oxidation, the conversion of propene and the yield of acrolein increase with increasing portion of silica in the catalysts. These results show that the appearance of acrylonitrile is not preceded by the formation of acrolein.
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