Detection, photometry and slitless radial velocities of 535 planetary nebulae in the flattened elliptical galaxy NGC 4697 ABSTRACT We have detected 535 planetary nebulae (PNs) in the flattened elliptical galaxy NGC 4697, using the classic on-band, off-band filter technique with the Focal Reducer and Spectrograph (FORS) at the Cassegrain focus of the first 8-meter telescope unit of the ESO Very ...

A conventional multi-pass rolling is designed to form different microstructures in a Mg–2Ag alloy. The relationship between microstructure and mechanical property investigated. result shows that twin-induced nucleation plays prominent role for the dynamic recrystallization (DRX) behavior of rolled alloys. DRXed grains distributed around elongated have random orientations but gradually turn conc...

OBJECTIVE To determine the incidence of postoperative rotation of flattened hydroxyapatite enucleation implants. METHODS A retrospective review of patients receiving flattened hydroxyapatite enucleation implants was performed to determine the incidence and severity of postoperative implant misalignment. RESULTS Flattened hydroxyapatite implants had been placed in 16 patients. Five were note...

Case 1 A young man (P.W.) aged 19 years had severe bilateral foot-drop caused by weakness of the anterior tibial muscles. He had previously undergone uneventful operations for triple arthrodesis of the right foot and for transplantation of tendons. In June 1961 he was readmitted to the hospital for the first of similar operations on the left foot, but was found to have a highly irregular pulse ...