30 research outputs found
Metal-insulator transition in EuO
It is shown that the spectacular metal-insulator transition in Eu-rich EuO
can be simulated within an extended Kondo lattice model. The different orders
of magnitude of the jump in resistivity in dependence on the concentration of
oxygen vacancies as well as the low-temperature resistance minimum in
high-resistivity samples are reproduced quantitatively. The huge colossal
magnetoresistance (CMR) is calculated and discussed
An integrative multi-omics analysis to identify candidate DNA methylation biomarkers related to prostate cancer risk
It remains elusive whether some of the associations identified in genome-wide association studies of prostate cancer (PrCa) may be due to regulatory effects of genetic variants on CpG sites, which may further influence expression of PrCa target genes. To search for Cp
Separate requirements for detection and perceptual stability of motion in interocular suppression
10.1038/s41598-017-07805-5Scientific Reports71723
Effect of impeller diameter to vessel diameter ratio on gas holdup
Numerous gas holdup correlations have been developed for predicting gas holdup in
agitated vessels. However; gas holdup studies were only limited to the use of impeller
diameter to vessel diameter ratio (Di/DT) of approximately 1/3. None of the available
correlations considered the effect of (Di/DT) variation on gas holdup. This work was
carried out to investigate this effect. The results of this investigation showed that the
gas holdup increases with (Di/DT) ratio. The effect of (Di/DT) variation on gas holdup
was correlated, with e = 2.0(NaNFr)O.6NRe
0.1 (Di/DT)2.5 , for an air-water mixture. The
(Di/DT) used in this work ranged from 0.36 to 0.5
Repeat Instability in the 27-39 CAG Range of the HD Gene in the Venezuelan Kindreds: Counseling Implications
The instability of the CAG repeat size of the HD gene when transmitted intergenerationally has critical implications for genetic counseling practices. In particular, CAG repeats between 27 and 35 have been the subject of debate based on small samples. To address this issue, we analyzed allelic instability in the Venezuelan HD kindreds, the largest and most informative families ascertained for HD. We identified 647 transmissions. Our results indicate that repeats in the 27-35 CAG range are highly stable. Out of 69 transmitted alleles in this range, none expand into any penetrant ranges. Contrastingly, 14% of alleles transmitted from the incompletely penetrant range (36-39 CAGs) expand into the completely penetrant range, characterized by alleles with 40 or more CAG repeats. At least 12 of the 534 transmissions from the completely penetrant range contract into the incompletely penetrant range of 36-39 CAG repeats. In these kindreds, none of the individuals with 27-39 CAGs were symptomatic, even though they ranged in age from 11 to 82 years. We expect these findings to be helpful in updating genetic counseling practices. © 2008 Wiley-Liss, Inc.link_to_subscribed_fulltex