Pairs of single neurones were recorded simultaneously from lateral geniculate nucleus of adult cats binocularly deprived of pattern vision by rearing in masks. Receptive fields of cells in laminae A and A1 were highly abnormal with unusually small proportion of Y-type fields and some neurones characterized by ON/OFF type of responses. In spite of these changes all crosscorrelogram patterns betw...

A finite quantum well, subjected to both electric and magnetic fields that are applied perpendicularly and parallel to the interfaces, respectively, is considered theoretically. Within an effective-mass approximation the energy eigenstates and associated currents are calculated numerically and analysed for a wide range of applied fields. The obtained single-particle energy spectra show the anti...

PURPOSE This study investigates a large-area plane-parallel ionization chamber (LAC) for measurements of dose-area product in water (DAPw ) in megavoltage (MV) photon fields. METHODS Uniformity of electrode separation of the LAC (PTW34070 Bragg Peak Chamber, sensitive volume diameter: 8.16 cm) was measured using high-resolution microCT. Signal dependence on angle α of beam incidence for squar...

To test whether the location coding of lateral septal cells is dependent on cue constellations, we examined single units in two different recording arenas on alternating days. Repeated recordings of lateral septal neurons in the same arena revealed that matching locations are encoded on separate days by about one third of the cells. The cells typically showed location-selective firing in only o...

It has often been asked whether the lateral geniculate body contributes to the integration of incoming visual impulses or is a mere 'way-station' in the pathway from retina to cortex. While perhaps less complex than the retina or cortex, the geniculate is histologically far from the simple structure that the term 'way-station' would imply (O'Leary, 1940; Glees, 1941). The presence of extensive ...

Introduction: Integrated radiation therapy - MRI systems are capable of delivering high doses to the target tissues near sensitive organs and achieve better therapeutic results; however, the Applied magnetic fields for imaging, can influence the charged path, change the penetration depth and deflect the particles, laterally, leading to dose distribution variations. Therefore, i...

Propagation of electromagnetic waves in forest environments is examined in which both the transmitting and receiving points are located in the trunk layer of a four-layered anisotropic forest model. This propagation model considers the forest as a horizontally stratified, anisotropic media of canopy and trunk, bounded by ground below and air above. The electromagnetic fields are obtained using ...