https://www.selleckchem.com/pr....oducts/fph1-brd-6125
Tunnel portal sections located in the soft-hard rock junction are vulnerable to the strong earthquake motions in seismically active regions. The main objective of this paper is to investigate the seismic response of tunnel portals located in the soft-hard rock junction. Taking the Baiyunding tunnel in northeast China as a background, a shaking table test with a geometric scaling ratio of 130 was built. Details of test setup and procedures are introduced first and then the test results are presented. The discussion of the results i

https://www.selleckchem.com/products/gw788388.html
In contrast, girls and boys were viewed as equally competent in science by White adolescents (with scores averaged across time) and by 12th graders (with scores averaged across race). Conclusions These findings show that Black and White youth differ in their endorsement of stereotypes about gender differences in Science, Technology, Engineering, and Mathematics (STEM) abilities. The results extend prior research with children and early adolescents showing that traditional STEM gender stereotypes become more pronounced in later adolesce