Impact craters with layered ejecta deposits are widespread on Mars. Prevailing views suggest that such were formed due to the involvement of target water and/or ice in impact excavation post-deposition movement ejecta. The long-runout landslides and lobate debris aprons likely used as analogs compare roughness at multiple scales, considering these three landforms share some similarities their g...

The Magellan SAR images show that volcanic domes occur on the surface of Venus. Edifices with scalloped margins are similar to volcanic domes and fall within a spectrum ranging from unmodified to remnant forms. Over 320 domes have been located of which more than 80% have modified morphologies. Broadly, the modified domes can be described by five sub-categories which are related to three unmodif...

Meticillin-resistant Staphylococcus aureus (MRSA) and other multiply resistant bacteria are frequently isolated in long-term care facilities (LTCFs). This study evaluated the contamination of staff clothing in three LTCFs. Over 500 samples were taken from uniforms and their pockets and these samples showed a high level of MRSA contamination. Wearing plastic aprons and managing pocket contents i...

Operator radiation exposure is an important occupational hazard compounded over the course of an interventional radiologist's career. This study compared operator radiation dose to the eye and head for different positions around the patient. Compared with cases performed from the femoral region, exposures were 1.8 times higher at the side, and 1.6 times higher at the head, using conventional ap...

BACKGROUND The heightened awareness within organized dentistry of environmental issues led the ADA Council on Scientific Affairs to develop recommendations on proper management of silver and lead wastes. OVERVIEW This council report provides recommendations on managing silver waste (in used fixer solution) and lead waste (in used intraoral film packets, lead aprons and lead collars) through r...

or "all" of the procedures, and few reported use of additional personal protective equipment, such as double sleeves (8% of respondents), plastic aprons (11%), or double gloves (11%). Details on the number of medical students who reported use of personal protective equipment during "most" or "all" procedures are shown in Table 1. The main factors identified by medical students as being importan...