background : this study retrospectively evaluated the prognostic factors and treatment outcome of patients with hormone-refractory prostate cancer who received chemotherapy. methods :we reviewed records of hormone-refractory prostate cancer patients who received chemotherapy between december 2004 and may 2011 at the clinical oncology and nuclear medicine department, mansoura university and the ...

The objective of this study was to examine age-related differences in visual scanning as drivers performed three separate maneuvers (going straight across, making a left and right turn) at two median-divided highway intersections with different crash frequencies. An on-road study was conducted with 60 drivers in three age groups: younger (18-25), middle-aged (35-55), and older (65-80). The stud...

Parameters of the median nerve F wave and peripheral motor nerve conduction in 51 healthy male and female human subjects 67 to 89 years of age are described. F wave responses were elicited by stimulation of the nerve at the wrist. Motor nerve conduction velocity (MNCV) was determined for the forearm segment. Major results of this study of an older group of subjects demonstrate that: 1) the shor...

background: the beginning of metastasis poorly affects the prognosis of breast cancer patients. lung is the most frequent site of visceral metastasis, and the rate of recurrence is 10-30%. we have tried to find out if the routine chest x ray (cxr) could play a role for early detection of lung metastasis, during the prognosis of these patients. methods: the files of the breast cancer patients be...

We introduce and begin to explore the mean and median of finite sets of shapes represented as integral currents. The median can be computed efficiently in practice, and we focus most of our theoretical and computational attention on medians. We consider questions on the existence and regularity of medians. While the median might not exist in all cases, we show that a mass-regularized median is ...