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  • Digitale Medien  (5)
  • 1985-1989  (4)
  • 1905-1909  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 96 (1989), S. 0 
    ISSN: 1471-0528
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 95 (1988), S. 0 
    ISSN: 1471-0528
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Summary. Between 1971 and 1985, at the Haguenau Maternity Hospital, a 20% decrease was observed in the rate of small-for-gestationalage infants (birthweight 〈10th centile using figures from all the study births) among 20 101 births between 28 and 42 weeks. This decrease could not be explained by simultaneous changes in socio-demographic and anthropometric characteristics of the pregnant women, nor a recruitment bias. The earliness of prenatal care at the Maternity Hospital may have played a role in the downward trend. Further research is needed to confirm the influence of prenatal care on the rate of small-forgestational-age babies.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    International journal of legal medicine 94 (1985), S. 219-225 
    ISSN: 1437-1596
    Schlagwort(e): Cannabinoids, enzyme immunoassay ; THC-metabolite, detection in urine and blood ; Cannabinoide, Enzymimmunoassay ; THC-Metabolit, Nachweis in Urin und Blut
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Rechtswissenschaft
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Mit Hilfe des Enzymimmunoassay (EMIT-dau-Syva) lassen sich Cannabinoide in Blut und Urin nach inhalativer (10 mg THC) oder oraler (30 mg THC) Aufnahme nachweisen. Die Kurvenverläufe werden mitgeteilt. Im Urin waren erhöhte Spiegel bis zu einer Woche nachweisbar. Eine Absicherung der EMIT-Befunde ist mittels Dünnschichtchromatographie nach absorptiver Anreicherung an einer C18-Extraktionssäule möglich. Nachweisgrenze ist 10 ng THC-Carbonsäure/ml bei Einsatz von 10 ml Urin.
    Notizen: Summary The EMIT cannabinoid assay was used for screening blood and urine after smoking tetrahydrocannabinol (THC; 10 mg) or ingestion of THC (30 mg). Cannabinoid levels in urine remain detectable up to 1 week. Confirmation was done by adsorption of the THC carboxylic acid onto a C18 extraction column and elution with acetone and TLC. The method is simple and sensitive and is applicable with common laboratory equipment. The detection limit is 10 ng/ml, using 10 ml urine.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    ISSN: 1432-072X
    Schlagwort(e): Bradyrhizobium ; Electron microscopy ; Mutants ; Nitrogen fixation ; Nodulation ; Soybean ; Symbiosis ; Transposon Tn5
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The genome of the slow-growing Bradyrhizobium japonicum (strain 110) was mutagenized with transposon Tn5. A total of 1623 kanamycin/streptomycin resistant derivatives were screened in soybean infection tests for nodulation (Nod) and symbiotic nitrogen fixation (Fix). In this report we describe 14 strains possessing a stable, reproducible Nod+Fix- phenotype. These strains were also grown under microaerobic culture conditions to test them for free-living nitrogen fixation activity (Nif). In addition to strains having reduced Fix and Nif activities, there were also strains that had reduced symbiotic Fix activity but were Nif+ ex planta. Analysis of the genomic structure revealed that the majority of the strains had a single Tn5 insertion without any further apparent physical alteration. A few strains had additional insertions (by Tn5 or IS50), or a deletion, or had cointegrated part of the vector used for Tn5 mutagenesis. One of the insertions was found in a known nif gene (nifD) whereas all other mutations seem to affect different, hitherto unknown genes or operons. Several mutant strains had an altered nodulation phenotype, inducing numerous, small, widely distributed nodules. Light and electron microscopy revealed that most of these mutants were defective in different stages of bacteroid development and/or bacteroid persistence. The protein patterns of the mutants were inspected by two-dimensional gel electrophoresis after labelling microaerobic cultures with l-(35S)methionine. Of particular interest were mutants lacking a group of proteins the synthesis of which was known to be under oxygen control. Such strains can be regarded as potential regulatory mutants.
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 22 (1909), S. 1641-1642 
    ISSN: 0044-8249
    Schlagwort(e): Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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