THERESA BALICK STAFF WRITER The director of education at the National Catholic Bioethics Center addressed the ethical problems with in vitro fertilization Monday in the Gentile Gallery, explaining why Catholics should not use artificial means to conceive.   The Rev. Tadeusz Pacholczyk, who holds a doctorate in neuroscience, discussed with about 185 students the ethical concerns involved in the various ways couples might artificially try to have […]