‎there are a few finite groups that are determined up to isomorphism solely by their order, such as $mathbb{z}_{2}$ or $mathbb{z}_{15}$. still other finite groups are determined by their order together with other data, such as the number of elements of each order, the structure of the prime graph, the number of order components, the number of sylow $p$-subgroups for each prime $p$, etc. in this...

statement of problem: assessment of mandibular size and position is essential when planning a treatment strategy for patients with class ii malocclusion. purpose: this study was carried out to evaluate the mandibular size and position of 8-13 year-old children with class ii division 1 malocclusion whom were referred to the faculty of dentistry, shiraz university of medical sciences, iran. mater...

Having fewer children in a class is attractive to both parents and teachers. One recent national poll found that 70% of adults believe that reducing class size would result in big improvements in public schools.1 Fewer than 10% believed that it would make no improvement at all. A 1997 Education Week survey found that 83% of teachers and 60% of principals agree that class size in elementary scho...

Class Size and Class Heterogeneity We study how class size and composition affect the academic and labor market performances of college students, two crucial policy questions given the secular increase in college enrollment. We rely on the random assignment of students to teaching classes. Our results suggest that a one standard deviation increase in the class-size would result in a 0.1 standar...

In this study, the effect of SiO2 and TiO2 nanoparticles on the gas separation performance of the polyurethane (PU) membranes has investigated. Polyurethanes were synthesized by bulk two step polym...

In the present work, a membrane contactor with asymmetric flat-sheet poly(vinyltrimethylsilane) (PVTMS) membranes was proposed for the CO2 desorption process from physical solvents at elevated trans-membrane pressures. Different solvents were studied: water, a mixture of polyethylene g...

Among the various phases of alumina, two phases γ and α are the most widely used in variousindustries. In this paper, γ-Al2O3 porous nanoparticles have been successfully synthesized from a s...

Emergence of nanotechnology has resulted in the introduction of the electrospinning process in fabricating and characterising the polymer electrolyte membrane from the sulfonated poly (ether ether ketone) (SPEEK) nanocomposite membrane comprised of electrospun Cloisite15A® (e-spun CL...