OBJECTIVE Functional magnetic resonance imaging (fMRI), in combination with block design paradigms with consecutive acupuncture stimulations, has often been used to investigate the neural responses to acupuncture. In this study, we investigated whether previous acupuncture stimulations can affect brain activations of later acupuncture stimulations. DESIGN All subjects were measured twice in t...

Background and Aim: Preparation of tooth structure by laser systems produces a surface with different characteristics. Therefore, selecting an appropriate bonding system is necessary to achieve the maximum bond strength. The aim of this study was to compare the bond strength of Adper Single Bond 2 adhesive and Single Bond Univer-sal to dentin prepared by bur or laser. Materials and Methods: ...

objectives: this study aimed to evaluate the effect of different ceramic surface treatments after machining grinding on the biaxial flexural strength (bfs) of machinable dental ceramics with different crystalline phases. materials and methods: disk-shape specimens (10mm in diameter and 1.3mm in thickness) of machinable ceramic cores (two silica-based and one zirconia-based ceramics) were prepar...

research has shown that shift work, in particular night work, can have negative effects on the health, safety and well-being of workers. our study assessed, in a hospital setting, the effects of bright light (bl) on general health and psychological problems during night shift work. in an experimental design, 15 female nurses at a general hospital that located in tehran were exposed to moderate ...

Understanding working principles and thermodynamics behind phase separations, which have significant influences on condensed molecular structures their performances, can inspire to design fabricate anomalously desirably mechanoresponsive hydrogels. However, a combination of techniques from physicochemistry mechanics has yet been established for the separation in In this study, thermodynamic mod...

statement of problem: following the increasing use of composites in restoring anterior and posterior teeth, problems due to its technique sensitivity have become a major concern. one of these problems is the possibility of contamination of dentin with saliva, blood and/or gingival fluid in different stages of bonding procedure, even with application of different methods of isolation. however, b...

Objective: Type 2 diabetes(T2DM) patients can ben­efit from exercise training programs but there are many barriers to do exercise .The aim of this study was to investigate effects of 10 weeks aerobic, resistance and combined strength and aerobic exercise program on fasting blood sugar (FBS) and glycated hemoglobin (HbA1c) of T2DM male patients. Materials and Methods: A quasi experimental s...

this prospective study aimed to compare the intraosseous (io) and intravenous (iv) effects of propofol on selected blood parameters and physiological variables during general anesthesia in rabbits. thirty new zealand white rabbits were studied. six rabbits received iv propofol (group 1) and another 6 rabbits, were injected propofol intraosseously (group 2) for 30 minutes (experimental groups). ...