Virtual Design of 3D-Printed Bone Tissue Engineered Scaffold Shape Using Mechanobiological Modeling: Relationship of Scaffold Pore Architecture to Bone Tissue Formation.

Large bone defects are clinically challenging, with up to 15% of these requiring surgical intervention due to non-union. Bone grafts (autographs or allografts) can be used but they have many limitations, meaning that polymer-based bone tissue engineered scaffolds (tissue engineering) are a more promising solution. Clinical translation of scaffolds is still limited but this could be improved by exploring the whole design space using virtual tools such as mechanobiological modeling.

A Review of Conventional and Novel Treatments for Osteoporotic Hip Replacements.

Introduction: Osteoporosis is a skeletal disease that severely affects the mechanical properties of bone. It increases the porosity of cancellous bone and reduces the resistance to fractures. It has been reported in 2009 that there are approximately 500 million osteoporotic patients worldwide.

The Gap Between the Perceptions and Expectations of Quality of Services Delivered to the Participants at the Scientific Conferences Using the University of Hafr Al Batin as a Model.

This study aims to reveal the gap between the perceptions and expectations of the quality of services delivered to participants at scientific conferences held at emerging Saudi universities (using University of Hafr Al Batin as a model). The study also reveals if there are differences, with statistical significance, in the sample response due to several variants such as gender, nationality, and the attendance rate of conferences per year. The research adopts the descriptive approach and uses SERVQUAL instruments.