This study examined publicly available data from The Institution of Education Sciences (IES) survey school leaders concerning modes instructions offered and subgroups prioritized during the Covid-19 pandemic. We asked: Do national regarding instructional (i.e., remote, hybrid, in-person) pandemic reveal different approaches U.S. elementary secondary schools in rural areas versus peer institutio...

determining the responses of floating structures at sea are the most important concerns in shipbuilding industry. in physical and dynamical principles a ship can be analyzed as a free elastic beam floating in sea without any supports. the analysis of corresponding dynamic equations are difficult and time- consuming, thus investigation on the behavior of floating structures can be done numerical...