background: for improving the quality of endodontic performance of practitioners in clinical practice, their basic, preclinical performance and knowledge must be taken into consideration. this study aimed to radiographically evaluate the technical quality of preclinical molar root canal treatments (rcts) performed by undergraduate dental students at a dental school in iran. further, the effect ...

The growth in mobile data traffic is forcing network operators to find ways deliver higher bandwidth, better coverage, and quality of service (QoS) at lower development costs. One method that can be used meet this need the aggregation technique. Aggregation techniques run on several different technologies are called heterogeneous networks (HetNet). Recently, some advanced have been proposed agg...