The osmotic fragility of erythrocytes from patients with genetically classified forms of retinitis pigmentosa (RP) has been studied. The mean fragility was increased in autosomal dominantly inherited RP, where the dystrophy was expressed regionally in the retina, with both rods and cones affected. In contrast it was normal in patients with the dominantly inherited disease, which leads to a diff...

Osteoporosis is a metabolic disease characterized by low bone mass and microarchitectural deterioration of bone tissue, leading to enhanced bone fragility and a consequent increase in fracture risk. Bone fragility depends on bone density, turnover and microarchitectural features, such as relative trabecular volume, spacing, number and connectivity. Previous fragility fractures increase the frac...

Stings from scorpions (Buthus tamulus) produce acute myocarditis and can result in death in children and adults. Acute myocarditis was induced in anaesthetised dogs by intravenous injection of 4 mg/kg venom (Buthus tamulus). Myocarditis was confirmed by ECG. Blood was collected before and 30 minutes after venom treatment and processed for osmotic fragility. An increase in osmotic fragility of r...

The enthalpy relaxation is performed in the glassy Ge22Se78 to understand the dynamic behaviors. The structure of the glass is examined by X-ray diffraction and Raman spectra. The dynamic parameters such as the fragility, stretching exponent and non-linear factor are determined. A low fragility of m = 27 is exhibited for the chalcogenide, however, the stretching exponent is found not to have a ...

Osmotic fragility of erythrocytes was studied in ten Duchenne dystrophic patients and eight healthy controls. Lysis started in Duchenne crythrocytes at a concentration of 6.5 g/l NaC1 and in the control erythrocytes at a concentration of 5.5 gIl NaCI. At all concentrations of sodium chloride (from 6.5 g/l to 4.5 g/l) significantly greater lysis was observed in the erythrocytes of dystrophic pat...

Elastic moduli of the glass and fragility of the corresponding supercooled liquid were found to be correlated in recently published results. In the present work, compositions within the Ca-Mg-Cu system are used to study the relationships between liquid fragility, glass-forming ability and elastic properties. The correlation between liquid fragility and elastic properties already observed for gl...

Semi-fragile image authentication methods are robust to JPEG images, but are fragile to other malicious manipulations. This paper presents a novel digital signature scheme that adopts statistic Ogive analysis in quantized discrete cosine transform (DCT) coefficients to construct a feature code for image authentication. The lower bound sensitivity of fragility can be determined by a predetermine...

The concentrations of trace metals in hair of fishermen from the Persian Gulf region were assessed todetect the relationships between element levels in hair and potential factors influencing these relationships.The hair of 19 fishermen were sampled from six stations in the Persian Gulf (Nirogah, Dayyer, Lengeh and Bandar Abbas in Khuzestan, Bushehr and Hormozgan provincesanalyzed by Inductively...

A magnetostriction oscillator has been used for determining the relative fragility of human red cells to 9000 cycle vibrations under some different environmental conditions. The destruction of the cells is a logarithmic function of time according to the equation See PDF for Equation. Hypertonic saline solution, saponin, preheating, alcohol, and ether in subhemolytic concentrations decrease the ...