On average among OECD countries, there are about 14 students. per teacher at the secondary level (Table D2.2). As the differences in student-teacher ratios indicate, there are fewer full-time equivalent students per full-. time equivalent teachers at the secondary level than at the primary level of education.
Causes of Lower Back Pain. Home/Conditions/Causes of Lower Back Pain. Pain in the lower back has a multitude of causes. The discs, facets, pars interarticularis, sacroiliac joints, hip joints and nerves can all cause a form of lower back pain.
Knee, hip, and back problems often result from improper weight distribution through the 1st ray and can cause early degenerative changes because so the pain under my 2nd toe has metatarsal pain and the bunion even has nothing to do with it though the bunion has been present for years. â¦ Retrieve Here.