objective: among the various impression materials, for alginate tear strength is probably more important than the compressive strength. the tear strength is important when an impression involves a mechanical undercut and/or lacks bulk strength to resist tearing. this study evaluated tear strength of iralgin and compared it with tear strength of alginoplast. methods: in this invitro experimental...

Researchers have debated whether a person’s behavior can be predicted from his or her face. In particular, it is unclear whether people’s trustworthiness can be predicted from their facial appearance. In the present study, we implemented conceptual and methodological advances in this area of inquiry, taking a new approach to capturing trustworthy behavior and measuring targets’ own self-expecta...

Atherosclerotic lesions form preferentially in arterial regions characterized by slow and irregular patterns of blood flow such as those found on the inner curvature of bifurcation branch points. Because of this nonrandom distribution, extensive research has focused on the role of shear stress or the mechanical drag force exerted on the endothelial lining of blood vessels. Blood flow that follo...

Impressions, dentures and other dental appliances may be contaminated with oral micro-flora or other organisms of varying pathogenicity from patient's saliva and blood. Several approaches have been tried to control the transmission of infectious organisms via dental impressions and because disinfection is less effective and has several drawbacks for impression characterization, several steriliz...

Negative impressions that arise during a first interaction with a Business-to-Customer web page often have the unpleasant side effect to destroy a firm s efforts in achieving B2C electronic commerce on the WWW. This paper verifies the relation between audience impressions and the visual style of a B2C web page. In comparison to previous work, the experimental procedure was greatly improved. It ...

The present studies investigated whether similarity to the self influenced memory for impressions of others. We predicted that similarity to the self would facilitate impression memory for others, paralleling the self-reference effect found when information is processed relative to the self. We were interested in how the initial valence of the impression, whether positive or negative, affected ...

Intraoral digital impressions have been stated to meet the clinical requirements for some teeth-supported restorations, though fewer evidences were proposed for larger scanning range. The aim of this study was to compare the accuracy (trueness and precision) of intraoral digital impressions for whole upper jaws, including the full dentitions and palatal soft tissues, as well as to determine the...