abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...

plagiarism in esl/efl learning contexts has been established as a dynamic and multi-layered phenomenon and has become a topic engaging many researchers in a heated debate in recent years. comparisons of student-generated texts with their source texts have shown that students rely on source texts in their writings and copying is a major strategy used by both l1 and l2 writers. in our country a...

Background and purpose: Chronic non-healing diabetic wounds are a major medical challenge worldwide. Stem cell therapy has been developed as a new approach in the management of such wounds that need to be explored further. In the present study we aimed to evaluate the effects of adipose derived mesenchymal stem cells (ADSCs) on gene expression level of some important inflammatory factors involv...

Background and purpose: Articular cartilage disease is prevalent in all societies and in most cases the damaged cartilage would not repair. Conservative treatments are associated with many problems. So cell therapy is needed as a definite treatment. One of the best and most accessible sources of cells for this purpose is stem cells derived from adipose tissue which can be differentiated into ch...

until now many studies have been done over recent decades throughout the world to show the right age to start english. in iran, research is still at an early stage in terms of evaluating teachers’ beliefs about teaching children english. the problem of at what age to start teaching english and how to teach english to elementary school children has not been solved neither in this country nor els...