wild grasses are the most important primary feedstuffs which are susceptible to contamination with toxigenic fungi belonging to aspergillus spp. in order to explore diversity of aspergillus species associated with the inflorescences of gramineous weeds, infected inflorescences were collected from wild grasses in western parts of iran. fifty-six aspergillus isolates were obtained from all diseas...

In this paper, considering an adhesively bonded composite single-lap joint, a novel approach is presented to predict the peel and shear stress distributions of the adhesive layer for an ASTM standard test sample. In current method, the equilibrium equations are derived using the energy method and based on the Timoshenko’s beam theory. Two solution procedures then are discussed, one of which rep...

particle size, board density and adhesive content are the most important factors, influencing on physical and mechanical properties of particleboard. in this study the effects of density, adhesive content and particle size on withdrawal strength of particleboard made from populus (populus alba) particles have been studied. three levels of density including 0.65, 0.7, and 0.75 g/cm3, three level...

statement of problem: hemostatic agents may affect the micro-leakage of different adhesive systems. also, chlorhexidine has shown positive effects on micro-leakage. however, their interaction effect has not been reported yet. objectives: to evaluate the effect of contamination with a hemostatic agent on micro- leakage of total- and self-etching adhesive systems and the effect of chlorhexidine a...

BACKGROUND/OBJECTIVES A new flash-free adhesive promises to eliminate the need to clean up excess adhesive upon orthodontic bracket bonding. This study evaluated this new adhesive with regard to microleakage at the enamel-bracket interface, amount of adhesive remaining on the tooth after bracket debonding, time required for adhesive remnant cleanup, and clinical practitioners' preference in com...

background and aims. use of porcelain as inlays, laminates and metal-ceramic and all-ceramic crowns is common in modern dentistry. the high cost of ceramic restorations, time limitations and difficulty of removing these restorations result in delays in replacing fractured restorations; therefore, their repair is indicated. the aim of the present study was to compare the shear bond strengths of ...

BACKGROUND AND STUDY AIMS Esophageal leaks are a potentially life-threatening condition. One treatment option is injection therapy with commercially available fibrin glue. We describe herein a method to close esophageal leaks by injecting autologous fibrin glue prepared exclusively with the patient's own blood.