statement of problem: despite the wide range of new dental materials, there is still a need for biomaterials demonstrating high biocompatibility, antimicrobial effects and ideal mechanical properties. purpose: the aim of this study was to histologically evaluate the pulpal response to a conventional glass ionomer, a resin modified glass ionomer and a calcium hydroxide in human teeth. materials ...

background: scuba diving is one of the fastest growing sports in the world. the objective of this study was to evaluate the effect of pressure variations to which divers are exposed on the pull out strength of glass fiber post luted with different cements. materials and methods: in this in vitro study, 120 extracted, single-rooted lower premolars were endodontically treated. they were randomly ...

This study was conducted to compare the impact of two vocabulary learning techniques, namely context learning and translation learning, on vocabulary recall of sixty pre-university Iranian learners of English as a foreign language. They were divided into two groups of high and low proficient. In regard to two vocabulary learning conditions, each group was divided into two subgroups of fifteen. ...

Why do leaders incorporate the principle of setting high expectations into their management philosophy? Effective leaders know that people tend to live up to the expectations set for them. Simply put, high expectations lead to high performance. Let me tell you a story about high expectations leading to high performance. A chief executive officer (CEO) was frustrated with one of her senior manag...

the aim of this study was to investigate the effect of protein whey isolate supplementation on antioxidant status during a resistance training program in overweight young men. 30 individuals (body mass index between 25-30 kg.m2) participated in this study and were randomly divided into three groups (each 10 subjects): experimental group 1 (supplement + six weeks of resistance training) (w), exp...

Introduction: Multiple myeloma is a heterogeneous disease with different survival times among patients. Accurate prediction of prognosis in multiple myeloma is essential, as patients with a shorter survival time may require early bone marrow transplantation (BMT) and more advanced chemotherapy as a part of their first-line treatment. In the present study, a parameter, depicted by ga...

Objective- Comprehensive functional, histomorphometrical and immunohistochemical assessment of sciatic nerve regeneration through an inside-out vein graft in rat. Design- Experimental in vivo study. Animals- Fifty- four healthy male White Albino rats. Procedures- The rats were divided into three experimental groups (n=18), randomly: Sham-operation (NC), Transected control (TC) and Inside-out ve...