Research is being done to study the details and progress of soil erosion on levees and dams, including the formation and progression of rills and gullies on the slopes, and eventually to final breaching. These detailed observations of erosion differ from the typical predictions of only the maximum erosion or scour depths, for example around submerged bridge piers. Computer simulations and geote...

Previous experiments demonstrating a reduction of tumorigenicity by roughening the surfaces of plastics im planted in rodents, or by increasing the pore size of cellu lose filter implants, were repeated with observations on cellular attachment to these objects and to filters strengthened and made impermeable by bonding to plastic. Round 13-mm discs of methylmethacrylate implanted s.c. in A/BÃŒF...

background: low back pain is a common health problem that has many consequences, including disability and absence from work.this study aimed to determine the prevalence of low back pain among women referred to quds clinic in tehran, iran.  material and methods: this cross-sectional study was conducted on women referred to quds clinic, in east of tehran. a total of 100 patients were studied over...

background: low back pain is the most common cause of disability and absence from work among young and middle-aged people. as there is limited knowledge regarding this problem among iranian students, this study aimed to determine the preva­lence of low back pain and its ‘related socio­demo­graphic factors among students of islamic azad university, tehran, iran.    material and methods: this is ...

context low back pain (lbp) is among the most prevalent musculoskeletal conditions in the developed countries. it is a common problem causing disability and imposing a huge economic burden to individuals and state organizations. imaging plays an important role in diagnosis of the etiology of lbp. evidence acquisition the electronic databases included: pubmed (1950 to present), ovid sp medline (...

background: low back pain (lbp) is one of the most common musculoskeletal complications of today’s societies which, poses a big portion of health expenses and work absentees. lumbar disc herniation is claimed to be one of the several causes of lbp. conservative therapies like physiotherapy are found to be beneficial for treatment in such a kind of lbp. however, there is low evidence proving tra...

low back pain (lbp) is a widespread musculoskeletal disorder worldwide. it causes disability that influence work performance in individuals. the aim of this study was to evaluate the prevalence and risk factors of lbp in the middle-aged office workers in the lebanese population. in this observational, cross-sectional study performed in 2013, overall, 250 office workers aged between 20 and 64 ye...