BackgroundPolycomb-group (PcG) and trithorax-group (trxG) proteins regulate histone methylation to establish repressive and active chromatin configurations at target loci, respectively.These chromatin configurations are passed on from mother to daughter cells, thereby causing heritable changes in gene expression.The activities of PcG and trxG prote
Study on the best time of refracturing for Hancheng coal seam
The old wells in Hancheng Block face the problem of production decline after long-term exploitation, and need to be re-fractured to form new fractures to communicate with CBM rich areas, so Bar Collar as to achieve stable CBM production.Due to the small difference of initial stress in coal seam, the magnitude and direction of in-situ stress change
Spatial Analysis of Placement and Topography of Early Iron Age Settlements in Chuvash Sura Region
An analysis of the arrangement system of ancient fortifications dating back to the Early Iron Age allowed to distinguish a special coastal group of sites located on the right bank of the Sura river within the boundaries of the Chuvash Republic.Determination of the topographical features of settlement arrangement, connection between fortified and un
Period-doubling route to chaos in perturbed period-one nonlinear dynamics
An all-optical method is proposed for destabilizing the period-one (P1) nonlinear dynamic state using a system of three cascaded semiconductor lasers across two optical injection stages.Leveraging the P1 dynamic state in the first optical injection stage as a tunable microwave oscillator, this approach generates broadband chaotic dynamics without 5
Adipocyte Atrophy Mimicking Signet Ring Cell Carcinoma of the Gallbladder
Signet ring cell morphology may result from a variety of causes and ranges from a benign reactive phenomenon to being indicative of highly aggressive malignancy.Benign epithelial signet ring cell change is well described in a variety of tissues, but nonepithelial signet ring cell change is a rare morphologic adaptation of adipose tissue principally