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  • 1
    Digitale Medien
    Digitale Medien
    Organogenesis-A Biophysical View (1980)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology 31 (1980), S. 51-82 
    Details
    ISSN: 0066-4294
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1146/annurev.pp.31.060180.000411
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  • 2
    Digitale Medien
    Digitale Medien
    Chromium oxide trifluoride (CrOF3) preparation and properties (1982)
    s.l. : American Chemical Society
    Inorganic chemistry 21 (1982), S. 3562-3565 
    Details
    ISSN: 1520-510X
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ic00139a057
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  • 3
    Digitale Medien
    Digitale Medien
    Clinical effects of using stannous fluoride mouthrinses during a five day study in the absence of oral hygiene (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 17 (1982), S. 0 
    Details
    ISSN: 1600-0765
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The purpose of this investigation was to determine the effects of stannous fluoride mouthrinses containing 250 or 1000 ppmF on plaque accumulation, gingivitis, microbial composition of plaque, and the ability of saliva to produce acid, in 48 subjects who abstained from oral hygiene for 5 days. Plaque formation was significantly lower in both SnF2 groups. Clinical gingivitis and gingival fluid measurements did not differ. Significant reductions in viable plaque organisms were provided by the fluoride rinses. No change was noted in the proportions of aerobic, anaerobic, gram-positive, or streptococcal bacterial populations. Both fluoride rinses inhibited the ability of saliva to lower the pH of a sugar solution.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1600-0765.1982.tb01167.x
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  • 4
    Digitale Medien
    Digitale Medien
    Effects of topically applied stannous fluoride and acidulated phosphate fluoride alone and in combination on dental plaque (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of periodontal research 17 (1982), S. 0 
    Details
    ISSN: 1600-0765
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: A five-day study in 48 subjects, conducted in the absence of customary oral hygiene, measured the effects of a single topical application of stannous fluoride or acidulated phosphate fluoride alone or in a 1:1 combination. All fluoride concentrations were 1.25%. At the end of the study no effects on dental plaque and gingivitis were detected. During the study the flouride treatments, particularly those containing SnF2, temporarily restricted the ability of the saliva to lower the pH of a sucrose solution.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1600-0765.1982.tb01168.x
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  • 5
    Digitale Medien
    Digitale Medien
    Case report 260 (1984)
    Springer
    Skeletal radiology 11 (1984), S. 141-143 
    Details
    ISSN: 1432-2161
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00348804
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  • 6
    Digitale Medien
    Digitale Medien
    Bio-distribution in rats of some salicylates with low gastric ulcerogenicity (1980)
    Springer
    Inflammation research 10 (1980), S. 457-464 
    Details
    ISSN: 1420-908X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The distribution of three radioactively labelled salicylate derivatives with low ulcerogenic activity was compared with that of acetylsalicylic acid (ASA) and salicylic acid using whole body autoradiography and liquid scintillation counting techniques in rats. The methyl ester of ASA (AME) was distributed in vivo very similarly to that observed with ASA and salicylic acid. AME is rapidly demethylated following absorption from the stomach and is subsequently converted to ASA and salicylate. Salicylate is the main metabolite produced from both AME and ASA, which specifically accumulates in inflamed tissues. The 3-methyl-and 6-methyl-substituted salicylic acids are not as rapidly absorbed as either ASA or salicylic acid and do not pass readily into the brain or bone marrow. These results show that the methyl (ester) group of AME (which adequately protects the gastric mucosa from damage caused by ASA itself) does not impair the quantity of pharmacologically active form of drug (salicylate and ASA) generated in vivo. However, insertion of the methyl group at the 3- and 6-position of salicylic acid markedly affects both absorption, distribution and pharmaco-activity of these acids.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01968047
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  • 7
    Digitale Medien
    Digitale Medien
    Quantitative analysis of delayed fracture observed in stress rate tests on brittle materials (1982)
    Springer
    Journal of materials science 17 (1982), S. 3227-3234 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract Delayed fracture in brittle materials may be demonstrated by observing the change in bend strength over a range of constant stress rates to failure. A simple technique has been developed to analyse this behaviour making efficient use of the experimental data. Based on a model incorporating theories of stress corrosion and brittle fracture, with Weibull statistics, the technique provides estimates of relevant parameters using the method of maximum likelihood. Confidence intervals of estimates, the significance of any observed rate effect, and the validity of the model are also assessed. The technique is demonstrated by applying it to data from bend tests on soda-lime glass and WC-Co materials.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01203487
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  • 8
    Digitale Medien
    Digitale Medien
    Effects of ethylene on the orientation of microtubules and cellulose microfibrils of pea epicotyl cells with polylamellate cell walls (1982)
    Springer
    Protoplasma 110 (1982), S. 5-14 
    Details
    ISSN: 1615-6102
    Schlagwort(e): Cell wall ; Ethylene ; Microfibrils ; Microtubules ; Radial cell expansion
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Following a 5 hours ethylene treatment, cortical cells of Pea (Pisum sativum L. var Alaska) epicotyl third internode showed a change in the orientation of both microtubules near the plasma membrane and recently deposited cellulose microfibrils. Control cortical cells had mostly transverse microtubules. The ratio of the average frequency of transverse to longitudinal microtubules was 6.0. After 5 hours of ethylene treatment, cortical cells had mostly longitudinal microtubules, with the ratio of transverse to longitudinal microtubules equal to 0.1. Epidermal cells were more variable than cortical cells with regard to the frequency of longitudinal and transverse microtubules. Observation of cortical cell walls in conventionally stained thin sections revealed that recent deposition of microfibrils had been primarily transverse in almost all of the control cortical cells sampled. In contrast, more than half of the ethylene-treated cortical cells had recent deposition oriented primarily longitudinally. This change in microtubule and microfibril orientation may be early enough to constitute the primary effect of ethylene leading to radial cell expansion.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01314675
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  • 9
    Digitale Medien
    Digitale Medien
    Sensitized photoinitiated grafting of N-vinyl-2-prrolidone (NVP) to woolen substratesFor details of the Ames testing procedure, see ref. 1. (1981)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 26 (1981), S. 521-527 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The photoinitiated copolymerization of N-vinyl pyrrolidone onto woolen substrates from aqueous solutions has been studied. A novel water-soluble photosensitizer, 4-(sulpomethyl) benzil sodium salt (Quantacure SKS - patent pending), has been developed and its efficiency assessed with and without an amine synergist. The initiator is nonmutagenic within the terms of the Ames testing procedure. Induction periods were not observed. The action of the so-called synergist, dimethylaminoethanol, was to reduce or stop the grafting reaction. The significance of the pH of the aqueous medium is shown by a maximum in grafting being observed at pH = 4.0 for otherwise standard conditions. Aspects of impregnation procedure were examined, marked improvements in the grafting level being achieved by use of preliminary evacuation - freeze/thaw cycles.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/app.1981.070260212
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  • 10
    Digitale Medien
    Digitale Medien
    Spontaneous degenerative spinal disease in the laboratory rabbit (1984)
    Hoboken, NJ [u.a.] : Wiley-Blackwell
    Journal of Orthopaedic Research 2 (1984), S. 161-168 
    Details
    ISSN: 0736-0266
    Schlagwort(e): Rabbit ; Spondylosis ; Calcified nucleus pulposus ; Intervertebral disc degeneration ; Life and Medical Sciences
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin
    Notizen: The spines of 35 rabbits (32 New Zealand white and 3 AC/J), ranging in age from 3 months to 8½ years, were investigated systematically for spontaneous degenerative changes. Three types of lesion were observed. (1) The nucleus pulposus underwent chondroid metaplasia throughout the length of the vertebral column by the age of 2 years. (2) Hydroxyapatite deposition was found in the nucleus pulposus in 12 of 20 animals examined roentgenographically. The lesion occurred principally in the distal thoracic segments and was first observed in 3-month-old rabbits. (3) Spondylosis occurred in each of four macerated spines from animals 〉24 months old. Portions of the spine spared by disc calcification were affected.
    Zusätzliches Material: 10 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jor.1100020207
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