unmodified zeolites show little affinity for anions due to the fact that their surfaces are negatively charged. however modification of zeolites with amines turns their negative surface charge to positive and creating higher adsorption capacity for anions. in this study, polyaniline-clinoptilolite composite was prepared by polymerization of anilinium on the surface of zeolite. the composite was...

introduction: the undergraduate curriculum of shiraz medical school underwent a major reform during the recent years. it comprised of integrated education, supplemented with an early clinical experience program. this study was carried out to find out how early experience in clinical experience affects medical students’ perception and identify strengths and limitations of the available methods a...

objective: zayandehrood habitat has economical and environmental importance in central plateau of iran    and it performs a vital role for habitants, agriculture section and the industries which are located along river bed. so current research  has been done to measure the contamination of heavy metals, its changes along the river route and defining the important and effective regions on this c...

background: the effect of mold fungi to allergic sensitization is not well-known. we aimed to evaluate the role of molds in the relation between indoor environment and atopy in asthmatics. materials and methods:the air samples obtained from 66 stable asthmaticsand 35 control subject’shouses were sprayed into sabouraud dextrose agar. allergy skin testing were performed both groups. the tempera...

background: clinical training has an important section in medical students’ education. creating a favorable learning environment plays an essential role in medical education. since clinical teachers involve to clinical problem, clinical education environment evaluation can help to identify the negative and positive factors. this study was conducted to compare medical students’ and residents&apo...

a chelating resin is prepared by condensation polymerization of aniline with formaldehyde andcharacterized by ft-ir, elemental analysis and studied for the preconcentration and determination of traceplatinum ion from environmental water sample using inductively coupled plasma-atomic emission spectroscopy(icp-aes). the optimum ph value for sorption of the metal ions was 5. the maximum adsorption...

abstract the main objective in this article is to study the issue of development and lasting competitiveness and to study its dimensions and also to acquainted with its related components and how to achieve it. in fact, to get acquainted with competitiveness is as a development that would prevent imposition of cultural, economical, and social and/or environment damages on future generations. in...

background: examining educational environment (academic and clinical) by means ofa valid, reliable and comprehensive questionnaire is a major key inachievinga highly qualified student – oriented curricula. the persian translation of ambulatory care learning education environment measure-acleem questionnaire has been developed to support this goal, and its psychometrics has beenexplored in this ...

chickpea (cicer arietinum l.) is one of the most important crops worldwide that is a subject of many plant breeding programs in many countries. in addition, climates are changing all over the world and drought becomes one of the most serious problems versus yield of crops. in order to screen drought tolerant genotype in chickpea, twenty genotypes were tested under rainfed and irrigated conditio...

the fringes areas interposed between metropolis and territorial ecosystems constitute a new sort of geography of urban sprawl. the difference between urban areas and their surroundings is at present unrecognisable.from this new context, that represent a new life environment for a large part of human population, new perceptive dynamics and new relationships emerge. various social manifestations ...