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  • 1
    Book
    Book
    Berlin ; München [u.a.] : Langenscheidt
    Keywords: Französisch ; Wörterbuch ; Deutsch ; Französisch ; Wörterbuch ; Deutsch
    Type of Medium: Book
    Pages: 1236 S.
    Edition: Neuaufl. in der neuen dt. Rechtschreibung, 2. Aufl.
    ISBN: 3468111533
    RVK:
    Language: German , French
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  • 2
    Online Resource
    Online Resource
    Cambridge, Massachusetts ; : The MIT Press,
    Keywords: Cryopreservation of organs, tissues, etc. ; Cryopreservation of organs, tissues, etc. Methods. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (372 pages) : , illustrations
    ISBN: 9780262338691 (e-book)
    DDC: 660.6
    Parallel Title: Print version: Cryopolitics : frozen life in a melting world
    Language: English
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Neurological sciences 7 (1986), S. 201-204 
    ISSN: 1590-3478
    Keywords: M.S.-epidemiology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario Una ricerca epidemiologica sulla sclerosi multipla è stata attuata nell'Ovest della Polonia ed è stata constatata una diseguale distribuzione della malattia nei 198 comuni esaminati. La frequenza della malattia era minore nel 1981 in rapporto al 1965. Uno spiccato aumento di popolazione nella classe di età inferiore ai 20 anni durante l'ultima decade, può spiegare le constatate differenze nel tasso di prevalenza. Inoltre nella città di Gniezno è stato posto in evidenza un nuovo focolaio di sclerosi multipla.
    Notes: Abstract An epidemiological survey of multiple sclerosis was carried out in western Poland. Uneven local distribution of MS was found within 198 communes making up the territory. The disease was less frequent in 1981 than in 1965. A marked increase of population in age classes under 20 during the last decade may account for the observed differences in the prevalence rate. In the town of Gniezno, a new MS cluster was discovered.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The stable radiolysis products of 1-chlorobutane (1-CB), 1-chlorobutene-2 (1-CB-2), 1-chloropropane (1-CP), 2-chloropropane (2-CP) and 1,3-dichloropropane (1,3-DCP) gamma-irradiated in an oxygen-free atmosphere have been investigated. The pure radiolysis products were separated by preparative gas chromatography and identified by NMR and mass spectroscopy as well as qualitative gas chromatography. The compounds formed were determined by potentiometric analysis and quantitative gas chromatography. From 1-CB we have obtained in the gas phase: HCl, H2, butane; in the liquid phase: 2-chlorobutane, 1,3-dichlorobutane and a mixture of oligomers of the initial compound (dimer and trimer). We have not recorded H2 in 1-CB-2. The main gaseous products of radiolysis of 1-CP are HCl and H2. Radiation yield of isomerization was determined. From 2-CP we have obtained in the gas phase: HCl and H2; in the liquid phase: 2,2-dichloropropane and a mixture of oligomers of the initial compound (dimers and trimers). From 1,3-DCP we have found in the gas phase: HCl and H2; in the liquid phase: 1-CP, 2-CP, 1,2-DCP and oligomers. Preliminary schemes for the formation of stable products are proposed.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Protoplasma 125 (1985), S. 1-12 
    ISSN: 1615-6102
    Keywords: Glycine max ; Root nodule ultrastructure ; Nitrogen fixation ; Peroxisomes (microbodies) ; Uninfected (interstitial) cells ; Ureides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Ultrastructural studies were conducted on root nodules of soybean (Glycine max) inoculated as seeds withRhizobium japonicum. The development of the large peroxisomes and abundant tubular endoplasmic reticulum (ER) characteristic of the uninfected interstitial cells was followed during nodule growth and maturation. Quantitative data on differences between the uninfected and infected cells in volumes and numbers of peroxisomes, plastids and mitochondria were analyzed statistically. The peroxisomes are 60 times greater in volume per unit cytoplasm in the uninfected cells than the small presumptive peroxisomes in the infected cells. Plastids are about equal in volume in the two types of cells. Mitochondria have 4 × the volume and 3 × the number of profiles per unit cytoplasm in the infected cells than in the uninfected. The observations are discussed in relation to published evidence that several enzymes involved in ureide production are localized in organelles of the uninfected cells. The uninfected cells are viewed as essential components in the symbiotic relationship between host and bacterium.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 494 (Sept. 2005), p. 229-234 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The methanol oxidation was studied at two differently prepared supported Ptelectrodes (Pt-C/GC and Pt/GC) in 0.5 M H2SO4 and 0.1 M NaOH. The supported Pt electrodes were characterized by AFM, STM TEM and HRTEM. The higher activity of Pt-C/GC than of Pt/GC catalyst, as well as negligible differences in the activities between the supported Pt catalysts and the corresponding single crystal electrodes oriented as the sites in the catalyst deposits in which Pt particles are dominant, clearly suggest the influence of the particle size effect on the catalystactivity
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 518 (July 2006), p. 277-282 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Glassy carbon (GC) discs and platinum microcylindrical electrodes were modified with alayer of nickel(II) tetrakis 3-methoxy-4 hydroxyphenyl porphyrin (poly-TMHPP-Ni) of differentloadings (Γ) between 0.6 and 10 nmol/cm2, and subsequently with a Nafion layer. The topographyand in some cases the thickness of films were measured by means of contact mode AFM. SEM andoptical microscopy observations were used for the comparative studies on a larger scale. The usefulrange of the coverage with modifying polymer was investigated. The optimal value of loading forthe sensor was found to be in the range of 6-8 nmole of poly-TMHPP-Ni per cm2. We observed theNafion layer uniformity in nanometric scale
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 518 (July 2006), p. 271-276 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Electrodes, assigned as GC/Pt-C and GC/Pt-Ru-C, were formed by deposition of Ptbasedcatalysts (47.5 wt % Pt + high surface area carbon) and (54 wt. % Pt-Ru alloy + high surfacearea carbon) on glassy carbon (GC) discs. X-ray diffraction measurements were used for thedetermination of the average crystallite size and phase composition of both catalysts. Crystallite sizefor Pt-C catalyst was 2.9 nm for Pt-fcc. In the diffraction pattern of the Pt-Ru-C catalyst two phases,e.g. Pt-Ru-fcc and Ru-hcp were refined using the Rietveld method. Crystallite sizes were 3.9 nm forPt-Ru-fcc and 2.8 nm for Ru-hcp. STM observations of the surface of GC/Pt-C and GC/Pt-Ru-Celectrodes revealed the presence of metal particles of the size in the range 2-6 nm and Pt-C or Pt-Ru-C agglomerates in the range of several tenth of nm. The thickness of the Nafion covering layerdetermined by AFM is ca. 100 nm. A simplified scheme of the investigated electrodes was created
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 12 (1960), S. 154-173 
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The total weight of vegetation on an area of just over 1 acre of old secondary forest in the moist forest zone of Ghana has been determined, and found to be equivalent to roughly 150 tons per acre dry weight. The nutrient content of each component of the vegetation was also determined and showed that the amounts of the major nutrients immobilised in the vegetation were: N, 1,800 lb./acre; P, 120 lb./acre; K, 800 1b./acre; Ca, 2,400 lb./acre; Mg, 350 lb./acre. The corresponding amounts of nutrients in the top foot of soil supporting the vegetation were: total N, 4,100 lb./acre; ‘available’ P, 11 lb./acre; exchangeable K, 580 lb./acre; exchangeable Ca, 2,300 lb./acre; exchangeable Mg, 330 lb./acre. About half the nutrients stored in the vegetation were contained in readily combustible material, and except for N would be released to the soil if the forest were cleared and burnt for cultivation. The quantity of roots and the amounts of nutrients contained in them were not sufficiently great to make an important addítion to the nutrient supply in the soil during subsequent cultivation. Of the total quantity of roots supporting the vegetation 85.5 per cent by weight were within 1 foot of the soil surface.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of psycholinguistic research 19 (1990), S. 345-373 
    ISSN: 1573-6555
    Source: Springer Online Journal Archives 1860-2000
    Topics: Psychology
    Notes: Abstract In the following we present a radical critique of the assumptions, concepts, methods, statistics and interpretation of data, and theories that have characterized the recent research tradition concerned with turn-taking. The principal representative of this tradition is the “simplest systematics” of Sacks, Schegloff, and Jefferson (1974). Attempts to describe the generalizable properties of turn-taking have quite inappropriately and unsuccessfully been limited for the most part to formal approaches that have deliberately excluded considerations of conversational content and purpose. We start instead from the assumption that the ultimate criterion for the success of a conversation is not “the smooth interchange of speaking turns” (Cutler & Pearson, 1986, p. 139) or any other prescriptive ideal, but the fulfillment of the purposes entertained by two or more interlocutors. Our approach is that of a psychology of language use based on Bühler (1927; 1934/1982) and Rommetveit (1974). The emphasis is deliberately placed on social aspects of language as means of communication.
    Type of Medium: Electronic Resource
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