Ultrasound is, arguably, the most commonly used diagnostic procedure in obstetrics. It is convenient, painless, yields immediate, extensive results, and is widely considered to be safe. Some (but not all) benefits described in the literature have been validated by evidence-based analysis, such as pregnancy dating. Others are considered clinically useful, although objective evidence may be less ...

Carbon atoms self-assemble into the famous soccer-ball shaped Buckminsterfullerene (C(60)), the smallest fullerene cage that obeys the isolated-pentagon rule (IPR). Carbon atoms self-assemble into larger (n > 60 vertices) empty cages as well-but only the few that obey the IPR-and at least 1 small fullerene (n <or= 60) with adjacent pentagons. Clathrin protein also self-assembles into small full...

The American Association for the Advancement of Special Articles: Science: Spectroscopic Similarity between Ergot (Lysergic Dipole Attraction and Hydrogen Bond Formation Acid) and the Yohimbine Alkaloids: DRs. M. S. in Their Relation to Solubility: PROFESSOR JOEL KHARASCH, D. W. STANGER, M. A. BLOODGOOD and H. HILDEBRAND ........................................... 21 R. R. LEGAULT. The Ergot Al...

OBJECTIVE To describe preoperative characteristics and postoperative results among patients with esotropic Duane syndrome who underwent vertical rectus transposition with vs without subsequent medial rectus recession (MRR). METHODS Clinical records were compared of patients with esotropic Duane syndrome who underwent vertical rectus transposition with (study group) vs without (control group) ...