Rock bolting has firmly used as the coal mine roof reinforcement in underground coal mine. The bolting effect of fully grouted rebar bolt is closely related to the bolt surface profile. This paper provides an experimental study to confirm that bolt rib internal length has great influence on bolting effect. Pull-out tests were conducted using rebar bolt with different rib spacings of 12, 24, 36 ...

OBJECTIVE Our aim was to evaluate whether high-resolution sonography can provide additional information concerning rib lesions compared with radiography or bone scintigraphy. MATERIALS AND METHODS Fifty-eight patients with high-uptake rib lesions seen on bone scintigraphy were selected. Radiography and rib high-resolution sonography were performed on these patients. High-resolution sonography...

Rib osteomyelitis is a rare disease, occurring in ~1% or less of all cases of haematogenous osteomyelitis. During the last century, 58 cases of rib osteomyelitis were reported in the literature, of which, multiple ribs were involved in only five patients. Because of its rarity and non-specific clinical signs, diagnostic of rib osteomyelitis may be delayed. We report a case of multifocal rib ost...

background: there are many parameters that modulate the severity of sickle cell anemia. fetal hemoglobin (hb f) is one of these major variables. however, its effect is clinically inconsistent. we conducted a descriptive study to assess the influence of hb f on clinical events and hematological variables in patients with sickle cell anemia. methods: 151 patients with sickle cell anemia with a st...

Chronic nephropathy is a recognized complication of sickle cell disease. Using a transgenic sickle mouse, we examined whether oxidative stress occurs in the sickle kidney, the origins and functional significance of such oxidant stress, and the expression of the oxidant-inducible, potentially protective gene, heme oxygenase-1 (HO-1); we also examined the expression of HO-1 in the kidney and in c...

Garnet films of composition (Lu,Bi)3(Fe,Ga,Al)5O12 and (Tm,Bi)3(Fe,Ga)5O12 are grown by liquid-phase epitaxy on [111]-oriented substrates of gadolinium gallium garnet. Ferrimagnetic films with positive or negative Faraday-rotation as well as paramagnetic films with negligible Faraday-rotation are produced by variations of the rare earth ion substitutions. The temperature dependence of Faraday-r...

This paper describes a simple method for the recording of rib deformity in idiopathic scoliosis. The relationships have been recorded between the measured rib hump and rib depression deformities and I) the rotation of the vertebral bodies (as measured by the method of Nash and Moe on the standing radiograph); 2) the degree of lateral curvature (as measured by the method of Cobb on the standing ...

Objectives: The aims of this study were to evaluate the efficacy of conservative treatment in patients with and without cervical ribs and Thoracic Outlet Syndrome (TOS). From so many kinds of conservative treatment in literature, we used a multidisciplinary approach (correction of posture, maximizing muscle endurance and power, stretch shorten muscles, massage for trigger points and maximize th...

A cervical rib generally arises from the seventh cervical vertebra and is known as an anomalous accessory rib or “Eve’s rib” [1]. A recent literature survey reported that cervical ribs are present in less than 1% of the normal population and are asymptomatic in about 90% of cases [2]. Complete cervical ribs are fused with the tubercle on the upper aspect of the first thoracic rib, very close to...

Hyperinflation clearly affects respiratory muscle interaction. It commonly increases the rib cage contribution to chest wall motion, whilst it reduces the abdominal contribution. This change is thought to result from the fact that hyperinflation severely reduces the mechanical advantage of the diaphragm, whilst it affects the mechanical advantage of the neck and rib cage muscles to a lesser ext...