introduction the aim of this study was to compare the characteristics of deflection load of three kinds of nickel titanium closed coil springs. methods and materials this research was an experimental study. research sample contains three kinds of niti closed coiled springs (heavy, medium, light) from gac, 3m, and rmo factories. 10 springs with 9 mm length for each group (totally 90 springs) wer...

The orthodontic treatment of patients with pre-existing root resorption (RR) is often difficult due to the increased risk progression and a compromised outcome can be expected. plan in such situations should comprise sparing strategy, which includes reducing duration fixed appliances, non-extraction treatment, force levels, avoiding intrusion at-risk teeth, amount apical movement affected teeth...

Vegetarianism is an old classic eating behavior that leads to lessening of several health risk factors. Vegetarian diet is reported to improve control of blood glucose concentration, to lower insulin requirement and to aid in weight control in diabetic patients. However, there is no evidence for the prevalence of diabetes mellitus to be significantly lower in vegetarians than in non-vegetarians...

In this paper we survey the development of the wave variable concept and examine wave-based teleoperation. We study the behavior of force reflecting systems under unknown but constant transmission delays, ranging from periods less than the human reaction time to several seconds. Passive transmission procedures guarantee system stability, but wave reflections and spurious dynamics may interfere ...

-A novel approach of image matching for rotating transformation is presented and studied. The approach is inspired by electromagnetic interaction force between physical currents. The virtual current in images is proposed based on the significant edge lines extracted as the fundamental structural feature of images. The virtual electromagnetic force and the corresponding moment is studied between...

In this paper we survey the development of the wave variable concept and examine wave-based teleoperation. We study the behavior of force reflecting systems under unknown but constant transmission delays, ranging from periods less than the human reaction time to several seconds. Passive transmission procedures guarantee system stability, but wave reflections and spurious dynamics may interfere ...

How much does language influence how we think? How far are the categories of our language contingent and culture-specific? Few questions are of greater significance to the social sciences. In this paper we attempt to demonstrate that linguistic semantics can address these questions with rigour and precision, by analysing some examples of cultural 'key words' in several languages. We want to arg...