Robust Weighted Norm Filtering in Passive Radar Systems.

Conventional methods such as matched filtering, fractional lower order statistics cross ambiguity function, and recent methods such as compressed sensing and track-before-detect are used for target detection by passive radars. Target detection using these algorithms usually assumes that the background noise is Gaussian. However, non-Gaussian impulsive noise is inherent in real world radar problems.

The relationship between FGF-23 and ghrelin levels in CKD patients: preliminary data.

Background: Fibroblast growth factor (FGF)-23 is a recently discovered phosphaturic hormone that increases in chronic kidney disease (CKD). It has been accepted as a determinant of mortality and a therapeutic target in these patients. Ghrelin is a hormone that has roles in energy and nutrient metabolism.

Comparison of the efficacy of lower and higher molecular weight viscosupplementation in the treatment of hip osteoarthritis.

We aimed to compare the efficacy of intra-articular injections of a lower molecular weight hyaluronan (LMW HA) (Ostenil) with a higher molecular weight viscosupplement (hylan G-F 20, Synvisc) in hip osteoarthritis. For this purpose, 43 patients (56 hips) with hip osteoarthritis with a visual analogue scale (VAS) pain score higher than 50/100, a Lequesne index greater than 6, and persistence of the pain for longer than 3 months despite all conservative methods were enrolled in the study and randomly assigned to two groups: 25 (32 hips) received LMW HA and the remaining 18 patients (24 hips) received hylan G-F 20. Three injections were administered once weekly to each patient under fluoroscopic guidance.