THIS report presents a method of determining the dimensional changes in gypsum dental products, which avoids the disadvantages of previous methods and which provides extreme sensitivity. As part of the program of research on the gypsum products used in dentistry, a preliminary study was made of various physical properties. This study, which included strength, thermal expansion, setting expansio...

Security is a vital issue in the usage of Automated Teller Machine (ATM) for cash, cashless and many off the counter banking transactions. Weaknesses in the use of ATM machine could not only lead to loss of customer’s data confidentiality and integrity but also breach in the verification of user’s authentication. Several challenges are associated with the use of ATM smart card such as: card clo...

Objectives: This study aimed to investigate dentinal crack rate following parapulpal pin insertion in anterior primary teeth. Methods: Thirteen sound freshly extracted primary canine teeth were horizontally sectioned 1 mm above the cementoenamel junction (CEJ). All samples were thoroughly inspected to ensure that the teeth had no cracks. The teeth were then mounted in acrylic blocks...

A new method for the studyof electrocardiographic leads is described. It makes use of plaster models having the same shape as the body in the frontal (or other) planes through which water flows in sheets. The flow of water is approximately analogous to the flow of electric currents through the body, and the flow lines are made visible by small crystals of soluble dye. If fluid passes in and out...

Measuring plaster models by hand is the traditional method of assessing malocclusion. Recent technologic advances now allow the models to be digitized, measured with software tools, stored electronically, and retrieved with a computer. OrthoCAD (Cadent, Fairview, NJ) performs this service. The purpose of this study was to evaluate the reliability of the OrthoCAD system. Two independent examiner...

The procolophonid reptile Anomoiodon liliensterni was found in the Triassic Bundsandstein of Thuringia, Germany, from the lower layers of the Chirotherium sandstone horizon in the summer of 1937 by a local bricklayer (Huene, 1939). Anomoiodon is represented by a specimen that consists of two closely associated skeletons that are preserved as natural molds in a block of medium-grained sandstone ...

Introduction: Joshi’s external stabilizing system (JESS) is a useful option to correct the deformities in patients who present to the orthopedic department with neglected congenital talipes equinovarus, Plaster of Paris (POP) drop out cases, or failed surgical procedures. Purpose: We aimed to analyze a short term follow-up study of 16 patients with 4 bilateral cases treated with JESS at the Dep...

Dissimilar joint with good quality and mechanical properties is one of the major problems the industries. One of the most commonly used methods to solve this problem is friction stir welding process. In this paper two different tool pin with simple cylindrical and screwed profile were used to finding optimization of friction stir welding parameters to reach best mixing flow, composite structure...