We conducted a phylogenetic analysis to characterize relationships among Bromus and test the monophyly of five of the seven morphologically distinct groups within Bromus (Poaceae: Pooideae) that have been treated as sections, subgenera, or genera. We sequenced the chloroplast trnL (UAA) intron, the 3!-end of the chloroplast ndhF gene, and the internal transcribed spacers (ITS) of the nuclear ri...

Improved understanding of the spatial dynamics of invasive plant species may lead to more effective land management and reduced future invasion. Here, we identified the spatial extents of nonnative cheatgrass (Bromus tectorum) in the north central Great Basin using remotely sensed data from Landsat MSS, TM, and ETM+. We compared cheatgrass extents in 1973 and 2001 to six spatially explicit land...

UNLABELLED Avascular necrosis of the first metatarsal head is a well-known, albeit rare, complication associated with hallux abductovalgus surgery. In this report, we describe the case of a 51-year-old male who developed osteonecrosis of the first metatarsal head 1 year after undergoing an isolated cheilectomy for the treatment of hallux rigidus. To our knowledge, this is the first published re...

Hallux rigidus is a “stiff big toe joint”. Patients with this condition, which is a form of arthritis, often report that it feels as if they have to force their big toe to bend at the joint when “toeing off” from the ground while walking. Often times, hallux rigidus results in the joint becoming completely rigid. Movement of the big toe joint occurs typically in an up and down plane only. The u...

The paper titled " Therapeutic Management of the Hallux Rigidus " [1], published in Rehabilitation Research and Practice , has been retracted as it was found to contain substantial flaws in its scientific methodology.

A Mojave Desert shrub community was experimentally burned to understand changes in seed bank of desert annual plant species in response to wildfire. Seed mortality ranged from 55 to 80%, and fire caused significant losses of native and alien annual seeds. Schismus arabicus, Schismus barbatus, Bromus madritensis, Bromus tectorum, Erodium cicutarium and Plantago spp. made up >95% of the seed bank...