Experience with 4,000 consecutive CVS cases shows that 1) the combination of both the direct and culture methods greatly reduces false diagnoses and maternal cell contamination; 2) the time interval ...between the sampling procedure and processing of villus specimens influences the quality of direct preparations; 3) maternal cell contamination (MCC) can be minimized with dissection of CVS specimens. We have compiled a large volume of confined placental mosaicism (CPM) cases to serve as a resource in interpreting mosaic cytogenetic findings. It was noted that, in up to 92% of the mosaic cases, the abnormal cell line was confined to the placenta. The frequency of true chromosomal mosaicism was 0.2%, and is not different from that for amniocentesis.
Searching in an unknown environment Kao, Ming-Yang; Reif, John H.; Tate, Stephen R.
Proceedings of the fourth annual ACM-SIAM symposium on Discrete algorithms,
01/1993
Conference Proceeding
Presents advanced data compression techniques for predicting stock markets behavior under widely accepted market models in finance. The techniques are applicable to technical analysis, portfolio ...theory, and nonlinear market models. The authors find that lossy and lossless compression techniques are well suited for predicting stock prices as well as market modes such as strong trends and major adjustments. They also present novel applications of multispectral compression techniques to portfolio theory, correlation of similar stocks, effects of interest rates, transaction costs and taxes.< >
We found eight polymorphic variants in human chromosome 15 using Q, C, Q-C and Ag-NOR staining methods. These variants included brightly or dully fluorescent pericentric segments and satellites, ...giant satellites, increased amounts of short arm hetrochromatin (ph+) and darkly (C band-positive) or lightly (C band-negative) Giemsa-stained pericentric Q-negative segments. These staining properties indicated that the entire short arm of 15 contained at least four distinct chromatin segments: Q-negative centromeric heterochromatin, a Q-variable distal segment, a Q-negative satellite stalk, and Q-variable satellites, in that order, from proximal to distal ends. The BrdU-Hoechst 33258-stained R bands (RBH) and high resolution G subbands were also studied for karyologic characterization of chromosome 15. Most of these variants were reported also in 13, but insufficiently documented in other D and G chromosomes. Together with polymorpic pericentric fluorochromes seen in 3 and 4, Yq, and nonpathogenic t(D;Yq), the pattern of these variants can be used as karyologic fingerprints for identification of each individual and his or her cell explants both in vivo and in vitro.
The Writings of Mao Zedong, 1949-1976 Hegel, Robert E.
Chinese Literature: Essays, Articles, Reviews (CLEAR),
12/1993, Letnik:
15
Book Review, Journal Article
