The specificity of gentamicin for vitamin E deficiency-associated oxidative stresses in the renal proximal convoluted tubules is apparently related to its ability to increasingly facilitate generation of radical species in mitochondria. To determine the ways in which vitamin E manage the currently processes, we conducted a prospective study aimed to investigate the tubular preserving effect of ...

The pathogenesis of adult polycystic kidney disease (PCKD) remains an enigma. In an attempt to find a defect that might explain the cyst formation, an ultrastructural study was performed on seven fresh bilateral nephrectomies of seven patients suffering from adult PCKD. Marked electron microscopic changes of the tubular basement membranes were detected, including thickening, splitting, fraying,...

Miniaturization of functional devices and systems demands new design and fabrication approaches for lab-on-a-chip application and optical integrative systems. By using a direct laser writing (DLW) technique based on two-photon polymerization (TPP), a highly integrative optofluidic refractometer is fabricated and demonstrated based on tubular optical microcavities coupled with waveguides. Such t...

In present work, numerical analysis of three novel PEM fuel cells with tubular geometry was conducted. Tree different cross section was considered for PEM, namely: circular, square and triangular. Similar boundary and operational conditions is applied for all the geometries. At first, the obtained polarization curve for basic architecture fuel cells was validated with experimental data and then...

The fatigue life of tubular joints commonly found in offshore industry is not only dependent on the value of Hot-spot stress (HSS), but is also significantly influenced by the through-the-thickness stress distribution characterized by the degree of bending (DoB). The determination of DoB values in a tubular joint is essential for improving the accuracy of fatigue life estimation using the stres...

A 30-year-old woman had scleroderma, Sjögren's syndrome, deforming polyarthritis, distal renal tubular acidosis, hypokalemic periodic paralysis, and persistent mild myopathy. During a five-year period the patient's otherwise mild course of disease was complicated by the occurrence of five episodes of severe flaccid muscle paralysis involving both proximal and distal muscle groups. Between the p...

Tubular ceramic foams were prepared by using natural clay as starting material and 120 ppi polyurethane foam as template via polymeric sponge method. Samples were sintered with different temperatures from 1200°C to 1280°C. The result shows that 1250°C is the ideal sintering temperature where the highest compressive strength of 1.980MPa at 47.31% porosity is obtained. The highest value in compre...