Polyacrylonitril (PAN)-supported chitosan (CS) nanocomposite membranes were prepared by cross-linking the CS with 3-aminopropyl-triethoxysilane (APTEOS) via sol-gel method. Pervaporative performances of the CS-SiO2/PAN membrane for dehydration of aqueous alcohol solutions were investigated. From SEM cross-sectional images of the membrane, the spongy pores and the finger-like pores we...

objective: as the aqueous extract of capparis spinosa (cs) possess antidiabetic effect, he present study aims to reveal the possible  mechanism of action of cs in diabetic mice.materials and methods: both single and repeated oral administrations of aqueous extract of cs were performed in multi-low dose streptozotocin-induced (mlds) diabetic mice. euglycemic hyperinsulinemic clamp was used in as...

purpose : contrast sensitivity (cs) evaluation by sv–1000e chart in all spatial frequencies after micro incision cataract surgery (mics) and its comparison between two thin lenses after optical correction in natural and glare conditions methods : in this cross sectional study, 100 eyes having mics with dodick arc phacolaser system were evaluated. 50 thinoptx lenses and 50 acrismart lenses were ...

 The aim of me present work was to investigate rhe potential utility of nanoparticles made of chitosan (CS) and also CS chemically modified with polyethylene glycol (CS-PEG) as new vehicles for improving na^al vaccine delivery. For mis purpose, diphtheria toxoid (DT) was chosen as a model antigen. DT was entrapped within nanoparticles made of CS of different molecular weight, and also made of C...

Background: Cesaraen section (CS) rates have risen rapidly throughout the developed world during the last 20 years and now stand at approximately one birth in five . Many factors have contributed to this rise , including maternal choice, increased maternal age and more liberal use of the procedure for women with previous CS , breech and multiple pregnancy. Cocerns have been expressed about the ...

background: two of the important radionuclides which are entered to environment and human diet are radium-226 (226ra) and cesium-137 (137cs). it is clear that the methods for preparation of foods such as peeling, washing, cooking or frying can affect the dose which is received by human due the to consumption of foodstuffs. an experiment has been performed at the environmental monitoring section...

Background & aim: Cesarean section (CS) rates have been increasing steadily, worldwide. The knowledge and attitude of health professionals towards natural childbirth and CS are important factors in selecting a mode of delivery. The purpose of this study was to determine the knowledge and attitude of midwifery and nursing students towards different modes of delivery. Methods:In this descriptive,...