An analytical investigation is conducted to study the unsteady free convection heat and mass transfer flow through a non-homogeneous porous medium with variable permeability bounded by an infinite porous vertical plate in slip flow regime while taking into account the thermal radiation, chemical reaction, the Soret number, and temperature gradient dependent heat source. The flow is considered u...

the unsteady free convection flow between two long vertical parallel plates withvariable temperature and mass diffusion in the presence of the thermal radiation hasbeen presented. the governing dimensionless coupled linear partial differentialequations on the flow are solved by using the laplace transform technique. theexact solutions have been obtained for the fluid velocity, temperature and t...

The clearance of [131I]orthoiodohippurate and 99mTc-mercaptoacetyltriglycine provide a measure of effective renal plasma flow, yet these clearances are proportional to renal plasma flow only if the extraction fraction remains constant. To determine the effect of unilateral renal artery stenosis, captopril, renal ischemia, and partial renal vein occlusion on renal blood flow and the extraction f...

The effect of pregnancy on the renal function of patients with essential hypertension or chronic glomerulonephritis has been the object of the investigation to be reported here. The study has involved the application of renal clearance methods to a group of patients, during their pregnancies and repeatedly during the 1 to 4 years after their delivery. In 3 patients, the series of records includ...

The effect of pregnancy on the renal function of patients with essential hypertension or chronic glomerulonephritis has been the object of the investigation to be reported here. The study has involved the application of renal clearance methods to a group of patients, during their pregnancies and repeatedly during the 1 to 4 years after their delivery. In 3 patients, the series of records includ...

BACKGROUND Urine output, a frequently used resuscitation end point, is presumed to represent renal cortical perfusion. However, no noninvasive method for direct measurement of renal perfusion exists. Power Doppler ultrasound (PDUS) is a method that reportedly is sensitive to low-velocity and microvascular blood flow and can depict it. This study aimed to develop a quantitative technique for PDU...

To investigate whether changes in renal blood flow induced by nondepressor doses of L-arginine, the precursor of nitric oxide, are mediated by a sympathetic neural mechanism, we examined the following in conscious rabbits: (1) the effects of intravenous infusion of L- or D-arginine (15 to 200 mumol/kg per minute) on renal blood flow and renal sympathetic nerve activity with or without intraveno...

A 30-year-old woman has presented complaining of weakness and fatigue to her primary care physician. The renal sonography is a routine step in the evaluation of new onset renal failure. When the renal masses have been discovered by sonography in this setting, the functional imaging may be critical. We reported a case about bilateral renal masses in a young female patient with tuberculosis and r...