The rising prices of materials for ship construction is one the primary problems faced by global shipbuilding industries. A potential solution to reduce material cost through a structure optimization technique. In this study, plate and stiffener types, thickness, layout are optimized in order minimize materials. genetic algorithm (GA) popular technique determining design variables. However, GA ...

1. We have studied the motion of the abdomen and the rib cage in patients with a transection of the lower cervical spinal cord during normal breathing both in the supine and sitting posture, and compared it with that of normal subjects. 2. In the supine posture the rib cage of a patient moves paradoxically inward, therefore his chest wall is deformed, which explains the high work of breathing. ...

Hemangioma of the rib is a rare benign tumor that is often difficult to distinguish from malignant bone tumors. Rib hemangioma often shows bony disruption with a slight cortical disruption, extraosseous lesion, and expanded bone on computed tomography (CT). We report the case of a 68-year-old man with atypical rib hemangioma with a slight cortical disruption and no expanded bone. The tumor show...

The purpose of this study was to determine if hard and soft rib protector garments have an effect on trunk kinematics and throw performance (accuracy and speed) of experienced quarterbacks during an overhand football pass. Eight quarterbacks completed 10 throws during each of three rib protector conditions (no rib, soft, hard). Protector conditions were compared using non-inferiority testing. N...

introduction: rib fracture is one of the common causes of trauma disabilities in many events and the outcome of these patients are very extensive from temporary pain management to long-term significant disability. control and management of the pain in such patients is one of the most important challenges in emergency departments. thus, the aim of the present study was assessing the efficacy of ...

We report a case of Giant Cell Tumor (GCT) arising from anterior are of first rib along with literature review which was treated with excision of rib through its normal margin along with tumor mass. GCT of rib is rare and if found mostly arises from the posterior aspect. However, GCT should be considered as differential diagnosis when bony mass is present in the anterior are of rib. It poses su...

Fractures of the first rib are uncommon in athletes and present a different clinical entity from traumatic first rib fracture associated with high energy thoracic trauma. These fractures are stress induced and precipitated by chronic muscular forces acting on the first rib. Typically they heal with conservative treatment. This report describes a fracture of the first rib in a tennis player that...

OBJECTIVES Despite recommendations that central obesity assessment should be employed as a marker of cardiometabolic health, no consensus exists regarding measurement protocol. This study examined a range of anthropometric variables and their relationships with cardiometabolic features and type 2 diabetes in order to ascertain whether measurement site influences discriminatory accuracy. In part...