The technical and practical obstacles remain immense, but if these researchers succeed the implications go far beyond helping women and men who can not produce eggs or sperm of their own. (newscientist.com)
We hope to challenge the creative, financial, and practical obstacles confronting filmmakers working outside the mainstream. (philistinefilms.com)
Yet, international cooperation has important and tangible benefits, so overcoming practical obstacles and constraints to facilitate international science is a priority for most funding agencies, including the National Science Foundation (NSF). (sciencemag.org)