background: the aim of this study was to evaluate the relation of intensity of low back discomfort with two factors that contribute to low back pain -ergonomics risk factors and psychosocial factors- most seen in emergency unit nurses. methods: this cross-sectional survey was conducted on 120 emergency unit nurses in isfehan. for daily assessment of psychosocial and ergonomics factors and inten...

This paper is devoted to the crowd sensing applications. Crowd sensing (mobile crowd sensing in our case) is a new sensing paradigm based on the power of the crowd with the sensing capabilities of mobile devices, such as smartphones or wearable devices. This power is based on the smartphones, usually equipped with multiple sensors. So, it enables to collect local information from the individual...

R eturning an injured or ill athlete safely to practice and, eventually, competition is a crucial role of the team physician. This process usually relies on the daily care and monitoring of athletic trainers and/or physical therapists. Individual athletes all have their strengths and weaknesses. Some tolerate pain and discomfort without a hint of a problem, all in an effort to return to their s...

Volume 91, Number 7 www.aafp.org/afp American Family Physician 487 A 26-year-old man presented with a fouryear history of exophytic growths on his back and extensive scarring on his chest. The lesions were flesh colored, nontender, and progressively worsening. His medical history was significant for moderate to severe acne, which required treatment with oral isotretinoin. The lesions gradually ...

The onset of the back-firing instability is studied in a one-dimensional spatially extended and dissipative system, where propagating localized solutions become unstable. It corresponds to the emission in the tail of a solitary wave of a new wave propagating in the opposite direction. The transition is illustrated, in geometrical terms, using a model normal form equation. (c) 2004 American Inst...