The induced cracks on the concrete lining of the intake pressure tunnels may cause the water seep into the surrounding media leading to develop a hydro pressure on the external surface of the lining. In the common design practice, the lining can be designed to tolerate with this pressure using the Schleiss method. However, when the tunnel is constructed above the underground water, the seepage ...

We report the results of a three-year study of bifocal fractures of the tibia and fibula, excluding segmental shaft fractures. In our whole series, these formed 4.7% of all tibial diaphyseal fractures. We describe three groups: bifocal fractures of both the proximal and the distal joint surfaces, fractures of the shaft and tibial plateau, and fractures of the shaft and ankle. These groups of fr...

absract intestinal malrotation is a general term used for any deviation from normal embryonic gi tract rotations. this abnormality, denotes a spectrum of conditions (non rotation, incomplete rotation) that according to the severity of anatomic consequence, can result in complications found in infancy, childhood, adolescence, adulthood or old age. this article, reports another case of intestinal...

idiopathic or spontaneous segmental infarction of omentum is a rare disease producing acute abdominal emergency. this rare entity is in a small group of abdominal emergencies with circulatory compromise. infarction could be caused by omental torsion which could be due to adhesion of a previouse surgery or it could be spontaneous. less than 150 cases of idiopathic segmental infarction of omentum...

Bone morphogenetic proteins (BMPs) have been identified as important morphogens with pleiotropic functions in regulating the development, homeostasis and repair of various tissues. The aim of this study was to characterize the expression of BMPs in synovial tissues under normal and arthritic conditions. Synovial tissue from normal donors (ND) and from patients with osteoarthritis (OA) and rheum...

the hydraulic pressure is one of the most important factors in the design of pressure intake tunnels. since the surrounding media cannot usually resist the high internal pressure of these tunnels, they are usually finished with an adequate lining mostly of reinforced concrete, which is an interaction problem between water, soil or rock and concrete lining. although reinforcing the concrete lini...

THE JOURNAL OF BONE AND JOINT SURGERY The patient made an uncomplicated recovery, her haemothorax resolved and she was discharged after seven days. Follow-up examination including an MRI scan of the spine, 13 months later, showed no evidence of recurrence ofthe tumour or of other pathological changes. Discussion. The unusual feature of our patient was the presentation with symptoms of dyspnoea ...

Context: Muscle fatigue is an important concept in regard to the muscle function of the shoulder joint. Its effect on the muscle force couples of the glenohumeral joint has not been fully identified. Objective: To examine the effects of muscle fatigue on muscle force-couple activation in the normal shoulder. Design: Pretest, posttest. Patients: Ten male subjects, age 18–30 years, with no previo...

segmental defects of the tibia are challenging therapeutic problems for both the physician and the patient. these defects may be caused by severe trauma, infection, tumors and congenital processes. several different techniques have been described for treatment of these defects including the papineau technique, allograft reconstruction, bone transport using the ilizarov frame, free vascularized ...