Jordan, like other countries in the world, is facing Coronavirus pandemic and making a great effort to continue education Jordanian schools universities through distance education. To evaluate this novel experience, study aimed at investigating effectiveness of light identifying obstacles faced by university students. reach research objectives, questionnaire was developed researchers followed s...

Nowadays deep excavations are needed for construction of foundation of high rise buildings, providing space for parking and etc. In some cases deep excavations may be constructed in the vicinity of the subway tunnels and causes unpredicted extra displacements and internal forces in tunnel lining of tunnels which were not designed for them and consequently affect serviceability of tunnel. Theref...

Input of sinusoidal excitation with specified frequency is an optimal way to capture the mechanism soil-tunnel interaction. Focusing on relationship between input motions and dynamic response a system, this study carried out series shaking table tests both free-field model soil–tunnel in background tunnel soft ground. To detect detailed deformation segmental linings, refined lining ring was dev...

Three adult pigeons (Columbia livia) belonging to a pigeon farm in Mashhad area were submitted toPoultry Clinic of School of Veterinary Medicine for post-mortem inspection. The farm had 150 adult pigeonsand a number of them suffered from a chronic disease with body weight loss, diarrhoea and weakness. Atnecropsy, slight to extreme enlargement with distortion were observed in gizzards of all car...

In this paper by using numerical evaluation the effect of balancing drupes of water hammer on tunnels lining is considered. In case of not arrangment of these reservoirs, the tunnel lining will be damaged of cyclic powers of water hammer. In this research, function of balancing reservoir of water hammer on cover of tunnels to the barriers’ turbine is simulated by numerical methods and Plaxis 3D...

Endothelium-derived NO controls the contractility and growth state of the underlying vascular smooth muscle cells and regulates the interaction of the vessel wall with circulating blood elements. Acute injury of the vessel wall denudes the endothelial lining, removing homeostatic regulation and precipitating a wave of events leading to myointimal hyperplasia. In this issue of the JCI, Alef and ...