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  • Biological monitoring  (2)
  • Daucus carota L. ssp. sativus  (2)
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  • 1
    Digitale Medien
    Digitale Medien
    Estimation of the percutaneous absorption of styrene in an industrial situation (1999)
    Springer
    International archives of occupational and environmental health 72 (1999), S. 46-51 
    Details
    ISSN: 1432-1246
    Schlagwort(e): Key words Percutaneous absorption ; Styrene ; Polyester industry ; Biological monitoring ; Protective equipment
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: AbstractObjective: This field study was designed to compare the level of styrene absorbed percutaneously with that absorbed by inhalation in a real situation in the fiberglass-reinforced polyester industry. Methods: The study protocol consisted of comparisons of the patterns of urinary excretion of styrene metabolites by four groups of workers, all of whom performed the same task at the same time in the same workshop but wore the following different protective equipment: total protection with an insulating suit and mask, respiratory equipment only, percutaneous protection only, and no protection. Results: The urinary excretion level of the group with total protection did not significantly differ from that of the group with respiratory protection only. Conclusions: Precutaneous absorption is not a particularly important pathway for styrene absorption during stratification work in the polyester industry. Completely insulating personal protective equipment provides no greater level of protection than does a respirator at positive pressure alone.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004200050333
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Dietary habits, a non-negligible source of 2-thiothiazolidine-4-carboxylic acid and possible overestimation of carbon disulfide exposure (1994)
    Springer
    International archives of occupational and environmental health 66 (1994), S. 85-90 
    Details
    ISSN: 1432-1246
    Schlagwort(e): 2-Thiothiazolidine-4-carboxylic acid ; Carbon disulfide ; Biological monitoring ; Urinary metabolite ; Diet
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract 2-Thiothiazolidine-4-carboxylic acid (TTCA) is the accepted urinary indicator of occupational exposure to carbon disulfide. This compound was detected in blank urine of individuals unexposed to carbon disulfide during an experimental validation of a new method of determination. Diet was suspected to be the source of TTCA, and particularly the consumption of brassica vegetables. This assumption was confirmed by collection and analysis of urine samples after ingestion of crude cabbage. TTCA was detected at concentrations higher than 2 mg/l in urine, and 3 mg/kg in crude cabbage. The identity of TTCA was confirmed after extraction and separation by capillary electrophoresis, supercritical fluid chromatography, and mass spectrometry. The results show that the diet should be considered as a nonnegligible source of the overestimation of carbon disulfide exposure.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00383362
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  • 3
    Digitale Medien
    Digitale Medien
    Linkage relationships among molecular markers and storage root traits of carrot (Daucus carota L. ssp. sativus) (1999)
    Springer
    Theoretical and applied genetics 99 (1999), S. 58-64 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key words Genetic map ; RFLP ; AFLP ; RAPD ; SAMPL ; Daucus carota L. ssp. sativus
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract  A 109-point linkage map consisting of three phenotypic loci (P 1, Y 2, and Rs), six restriction fragment length polymorphisms (RFLPs), two random amplified polymorphic DNAs (RAPDs), 96 amplified fragment length polymorphisms (AFLPs), and two selective amplification of microsatellite polymorphic loci (SAMPL) was constructed for carrot (Daucus carota L. ssp. sativus; 2n=2x=18). The incidence of polymorphism was 36% for RFLP probes, 20% for RAPD primers, and 42% for AFLP primers. The overall incidence of disturbed segregation was 18%. Linkage relationships at a LOD score of 4.0 and θ=0.25 indicated 11 linkage groups. The total map length was 534.4 cM and the map was clearly unsaturated with markers spaced at 4.9 cM. AFLP P6B15 was 1.7 cM from P 1, AFLP P1B34 was 2.2 cM from Y 2, and AFLP P3B30XA was 8.1 cM from Rs.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220051208
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  • 4
    Digitale Medien
    Digitale Medien
    Evidence for maternal inheritance of the chloroplast genome in cultivated carrot (Daucus carota L. ssp. sativus) (1999)
    Springer
    Theoretical and applied genetics 98 (1999), S. 669-672 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key words Chloroplast DNA ; Daucus carota L. ssp. sativus ; Maternal inheritance
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract  The incidence and inheritance of a chloroplast DNA (cpDNA) mutation/marker, BP10U, was studied in crosses among cultivated carrots (Daucus carota ssp. sativus). BP10U is about 400 bp larger than the more common BP10L allele. The occurrence of BP10U among carrot inbreds was widespread. Individual plants exhibited only one form of BP10, and cpDNA inheritance was strictly maternal. BP10U only occurred in male-fertile plants. Some male-fertile inbreds and all cytoplasmically male-sterile (petaloid) carrots had the BP10L allele. Alloplasmic cpDNA variation has been reported previously in Daucus, but this is the first report of variation and inheritance of cpDNA within cultivated carrot.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220051119
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