نتایج جستجو برای: pigments
تعداد نتایج: 13305 فیلتر نتایج به سال:
Photoconductivity measurements using an electrostatic paper analyser and an electrophotographic recorder have been carried out on a series of duallayer photoconductor devices consisting of thin po~y~arbo~ate films doped with bis-halogenated anthanthrone pigments as the charge-generation material (CGM). The pigments, all synthesised by the same chemical route, exhibit photodecays that decrease w...
Photoacclimatization of zooxanthellae extracted from the coral Pocillopora verrucosa was studied through the determination of pigments, light absorption and photosynthetic parameters, for samples collected in summer and winter between 1 and 40 m on a northwestern reef of Tahiti (French Polynesia). The same measurements were also performed on phytoplanktonic samples collected at a stable oceanic...
S. H. ROBINSON (Boston) described a new experimental technique for studying the early labelled component of bilirubin in the ligated bile duct of the Gunn rat. Using 14C bilirubin he measured the total miscible bilirubin pool. In addition, the rate of bile pigment formation following the administration of 2-14C glycine was estimated. This allowed precise assessment of bilirubin and haem product...
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