The aim of this study was to evaluate the efficacy of Twisted File (TF) Adaptive, Reciproc, and ProTaper Universal Retreatment (UR) System instruments for removing root-canal-filling. Sixty single rooted teeth were decoronated, instrumented and obturated. Preoperative CBCT scans were taken and the teeth were retreated with TF Adaptive, Reciproc, ProTaper UR, or hand files (n=15). Then, the teet...

Responsive materials capable of autonomously regulating and adapting to molecular recognition-induced chemical events hold great promise in the design artificial chemo-intelligent life-like soft material platforms. In this context, a synthetically minimal emulsion platform that, regulated by interfacial supramolecular recognition events, is reversibly adapt its environment reported. The systems...

Teacher and students can use WWW as a limitless source of learning material for nearly any subject. Yet, such abundance of content comes with the problem of finding the right piece at the right time. Conventional adaptive educational systems cannot support personalized access to open-corpus learning material as they rely on manually constructed content models. This paper presents an approach to...

This paper describes the use of web-based adaptive learning modules to improve student mastery of computer engineering concepts. Adaptive learning is an exciting pedagogical approach that can provide individual instruction to students by dynamically altering the difficulty of content based on an ongoing assessment of the students’ capability. This technique has recently become practical for lar...

introduction:  breast  cancer  is  a  leading  cause  of  death  among  females  throughout  the  world.  currently,  radiologists are able to detect only 75% of breast cancer cases. making use of computer-aided design (cad)  can play an important role in helping radiologists perform more accurate diagnoses.   material and methods: using our hybrid method, the background and the pectoral muscle...

In this paper an overview of functionally graded materials and constitutive relations of electro elasticity for three-dimensional deformable  solids is presented, and  governing equations of the Bernoulli–Euler and Timoshenko beam theories which account for through-thickness power-law variation of a two-constituent material and piezoelectric layers are developed  using the  principle  of virtua...

In this paper, a timed place Petri-net (TPPN) mode l for fEezible manufacturing systems with the components of machines, limited buffers, robots and the material handling systems, Automated Guided Vehicles (AGV’s} is constructed. Since a firing sequence of the TPPN from the initial marking t o the final marking can be seen as a schedule of the modeled FMS, b y using an A’ based search algorithm...