the present study investigated construct equivalence of multiple choice (mc) and constructed response (cr) item types across stem and content equivalent mc and cr items (item type ‘a’), non-stem-equivalent but content equivalent mc and cr items (item type ‘b’), and non-stem and non-content equivalent mc and cr items (item type ‘c’). one hundred seventy english-major undergraduates completed mc ...

    Background and Aim: Association between type 2 Diabetes mellitus and osteoporosis has been an attractive subject for many researchers, because both of them are very frequent and occure in the same age group. However there are controversial reports on the effect of the type 2 Diabetes mellitus on bone mineral density. Bone mineral density (BMD) of diabetic patients is reported to be equal, m...

the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...

  Background : Although factors such as implant length, location, and diameter as well as bone quality have been associated with excessive failure rates, smoking is suggested as a stronger predisposing factor for higher failure rates. Thus, knowing the relationship between bone loss around the dental implants, maintenance of the implants and smoking could be a principle step towards solving the...

Background: Bone marrow transplantation (BMT) is the treatment of choice for many patients with malignant and nonmalignant diseases. Long-term complications such as osteoporosis should be considered, because it is directly associated with the morbidity and mortality. The purpose of this study is to assess the bone mineral density after allogenic or autologous bone marrow transplantation in pati...