Urban and rural places are integrated through economic ties and population flows. Despite their integration, most studies of road safety dichotomize urban and rural places, and studies have consistently demonstrated that rural places are more dangerous for motorists than urban places. Our study investigates whether these findings are sensitive to the definition of urban and rural. We use three ...

Measurement of discharge in open channels is one of the main concerns in hydraulic engineering. The structures used for this aim should be accurate, economical and easy to use. Weirs are among the oldest and most convenient hydraulic structures that have been used in both laboratory and field for flow measurement in open channels. Due to limitations of simple sharp crested weirs, recently compo...

The history of complete denture impression procedures has been influenced largely by the development of impression materials from which new techniques and ideas arose. The purpose of this study was to compare the retention of complete dentures made by using different impression techniques like conventional, admixed, all green, and functional techniques. The results showed that there was signifi...

Aim: This article describes an alternative preliminary impression technique for an infant with cleft palate. Methodology: A 3 day old male infant with cleft palate was referred to clinic for the fabrication of feeding plate, for the first impression a sterilized tea-spoon modified with a hole in the middle of spoon was used as a tray. Results: Modified spoon tray is easily accessible, cost effe...

background: regarding the strong differentiation and anti-leukemic activity of dendrostellera lessertii extract, an active agent with similar capabilities was isolated from the crude extract of the plant leaves. the aim of this study was to determine whether the anti-proliferative effect observed for this compound, is differentiation-dependent among the drug-treated cells, using u937 cells. met...

BACKGROUND Addition of disinfectant to irreversible hydrocolloid impression materials can eliminate the disinfection step to avoid dimensional changes associated with it. The aim of the present study was to evaluate the effect of various disinfectant mixing liquids on the properties of commercially available irreversible hydrocolloid impression materials. MATERIALS AND METHODS Four commercial...

The relining of complete dentures involves solving all of the problems encountered in the construction of new dentures, except positioning individual teeth. The first and most important problem is to achieve a healthy condition of the tissues of the basal seat for the dentures. To do this, the patient must be without his dentures for at least 24 hours before the impressions are made. The dentis...