Refractive-index (RI)-based sensing is a major optical sensing modality that can be implemented in various spectral ranges. While it has been widely used for sensing of biochemical liquids, RI-based gas sensing, particularly small-molecule gases, is challenging due to the extremely small RI change induced by gas concentration variations. We…[Read more]

We hypothesized that an entire pedicle screw tract cement augmentation has greater strength than traditional techniques.

Twenty-four fresh frozen calf lumbar spines were randomized into three study groups, each having eight vertebrae (1) screw cemented after vertebroplasty; (2) fenestrated cemented screw; and (3) cementation of the entire…[Read more]

Healthcare workers (HCWs) face considerable mental and physical stress caring for patients with Covid-19. They are at higher risk of acquiring and transmitting this virus. This study aims to assess perception and attitude of HCWs in Saudi Arabia with regard to Covid-19, and to identify potential associated predictors.

In a cross-sectional…[Read more]

Children with developmental coordination disorder (DCD) face significant challenges to deal with everyday activities due to underlying motor proficiency difficulties. These challenges affect children and young people’s participation; that is, involvement in daily life situations. In the past, limited consideration was given to personal experience…[Read more]