sensitivity of an electromagnetic type metal detector is directly related to stability, the higher the required sensitivity, the more frequently the rebalancing controls will have to be adjusted. thus, for maximum sensitivity in the head ,the use of automatic drift compensation network is necessary in order to cancel out the signal resulting from a slow drift in the coil system due to the tempe...

Calretinin (CR) is one of the earliest neurochemical markers in human corticogenesis. In embryos from Carnegie stages (CS) 17 to 23, calbindin (CB) and CR stain opposite poles of the incipient cortex suggesting early regionalization: CB marks the neuroepithelium of the medial boundary of the cortex with the choroid plexus (cortical hem). By contrast, CR is confined to the subventricular zone (S...

Neurons may serve different functions over the course of an organism's life. Recent evidence suggests that cortical subplate (SP) neurons including those that reside in the white matter may perform longitudinal multi-tasking at different stages of development. These cells play a key role in early cortical development in coordinating thalamocortical reciprocal innervation. At later stages of dev...

segmental defects of the tibia are challenging therapeutic problems for both the physician and the patient. these defects may be caused by severe trauma, infection, tumors and congenital processes. several different techniques have been described for treatment of these defects including the papineau technique, allograft reconstruction, bone transport using the ilizarov frame, free vascularized ...

background and purpose: anxiety is a common problem associated with invasive medical procedures, especially in patients undergoing coronary angiography. as an intensifier at cardiovascular reactions, anxiety poses significant risk to the health of patients undergoing angiography. researchers believe that use of benson’s relaxation technique could reduce anxiety in different patients. this study...

in this paper a wavelet-based logo watermarking scheme is presented. the logo watermark is embedded into all sub-blocks of the lln sub-band of the transformed host image, using quantization technique. extracted logos from all sub-blocks are merged to make the extracted watermark from distorted watermarked image. knowing the quantization step-size, dimensions of logo and the level of wavelet tra...

The neuropeptide somatostatin has been suggested to play an important role during neuronal development in addition to its established modulatory impact on neuroendocrine, motor and cognitive functions in adults. Although six somatostatin G protein-coupled receptors have been discovered, little is known about their distribution and function in the developing mammalian brain. In this study, we ha...

background: recurrence rate of rotator cuff tears is still high despite the improvements of surgical techniques, materials used and a better knowledge of the healing process of the rotator cuff tendons. large to massive rotator cuff tears are particularly associated with a high failure rate, especially in elderly. augmentation of rotator cuff repairs with extracellular matrix or synthetic patch...