PubMed · 85821
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1978-04-15. Safety to laparoscopy.. https://pubmed.ncbi.nlm.nih.gov/85821/
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Dyes of several classes were investigated as candidates for use in a multiplex, four-decay fluorescence detection scheme for DNA sequencing. The dyes include nitrobenzofuran dyes, rhodamine dyes, fluorescein dyes, cyanine dyes, Nile Red, and BODIPY dyes. Based on the results of fluorescence spectral and lifetime studies, an initial set of four dyes was selected for further study: NBD-aminohexanoic acid (NBD-HA, r = 1.1 ns), tetramethyl-rhodamine, methyl ester (r = 2.2 ns), rhodamine green (r = 4.3 ns), and BODIPY 505/515 (r = 5.9 ns). Limits of lifetime detection of the four dyes were investigated, and lifetime resolution was demonstrated for mixtures of the free dyes in batch solution. Lifetime of dye-labeled DNA primers also were determined in batch solution and detected on-the-fly in capillary electrophoresis (CE). Conjugation of the dyes to DNA improved the resolution of their individual lifetimes in mixtures in batch measurements. When attached to the primer, tetramethyl-rhodamine exhibited biexponential decay with a dominant lifetime of 3.8 ns, making it unsuitable for four-decay sequencing. Contact with the CE gel lengthened the lifetime of NBD-HA-labeled primer from 1.3 to 2.1 ns but did not affect the lifetimes of the other dyes. Lifetime detectability of labeled primers at individual points along an electrophoretic peak in the attomole range.
This paper describes structure, process, results, and evaluation of the Norwegian Society of Gynaecology and Obstetrics' Guidelines in obstetrics. This work, which lasted for 2 1/2 years, involved almost all obstetrical departments in Norway and 1/4 of all members of the Norwegian Society of Gynaecology and Obstetrics. All members of the Norwegian Society of Gynaecology and Obstetrics were invited to answer 24 questions. Of the 63% who replied to the questionnaire, 44% and 48% respectively stated that the Guidelines in obstetrics were very good or good. The introduction of the Guidelines in obstetrics led to changes in routines in more than 70% of the hospitals, and the different categories of hospital physicians changed their routines as well (55-65%). 83% of the heads of the departments stated that the Guidelines in obstetrics served partly or totally as the model for the obstetrical management guidelines. The evaluation and the experience of this quality assessment handbook serve as perspectives for future work.
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