Anisotropy

properties. It is known that a stack of thin homogeneous and isotropic layers can be replaced with a homogeneous but anisotropic medium in which seismic wave velocities differ in the vertical and horizontal directions. Another situation that leads to anisotropy is the existence of

unpredictable heterogeneity and anisotropy within many reservoirs. In past geophysicists acquired and processed P-wave reflection data at short offset, which automatically implied relatively small angular ray coverage. So seismic anisotropy, which is defined as directional dependence of elastic properties of earth remains unnoticed. But with the advance of methodologies, acquiring long offset and multi-component data become feasible and cost effective, anisotropy showed up. Seismic wave propagation

Diffusion tensor imaging (DTI) provides at each voxel a symmetric and positive-definite 3\times3 tensor, which captures the local diffusion anisotropy and preferred diffusion orientation of water molecules in tissues [#Pierpaoli1996]. Thus, DTI provides additional orientation information in white matter regions of the brain, which are normally captured as homogeneous areas in traditional MR images. It is expected that such orientation information can improve the registration of white matter regions

motor pathway for predicting motor outcome in the human brain [22]. Patients with vestibular symptoms had lower fractional anisotropy values in the distinct regions than control subjects with no symptoms. We used fractional anisotropy values from DTI-MRI to measure damage to the brain’s signal-transmitting white matter (WM). It had been clear that, the lower the fractional anisotropy, the greater the damage to the tissue of WM underlying vestibulopathy with cutoff

In the study of radially expanding solar wind, it is well established that various kinetic plasma instabilities limit the unchecked increase of temperature anisotropies. Observations made in the solar wind show that protons, electrons, and alpha particles exhibit varying degrees of temperature anisotropies. (-- removed HTML --) (-- removed HTML --) 1–14 (-- removed HTML --) (-- removed HTML --) These observations also reveal that the upper and lower bounds of the temperature ratio, (-- removed

So compositions discussed in present case may lie in range of single domain. Coercivity ‘Hc’depends upon the several factors like magnetic domain size, particle morphology, porosity, grain size andmagneto-crystalline anisotropy etc. The coercivity has inverse relation with the grain size. Larger grains tend to contain greater number of domain walls. So when these domain walls get magnetized or de-magnetized, the domain wall movement requires less energy compared to domain

so-called Weibel instability. At the microscopic level, these transverse EM modes can be unstable when the electron distribution function (EDF) includes an anisotropic part in the momentum space. More precisely, it is the anisotropy in the average kinetic energy, i.e., temperature anisotropy, which provides a free energy source for this instability. In Ref. (-- removed HTML --) 6 (-- removed HTML --) , the plasma was modelled by a bi-Maxwellian EDF defined by a temperature (-- removed HTML --) (-- removed

It is now widely recognised that the adult human brain retains a larger degree of plasticity than was previously thought. This is perhaps particularly true of the neural mechanisms underlying sensory perception, where substantial behavioural and neural changes have been demonstrated in a wide variety of sensory functions following experience. Sensory plasticity has been recognised for its rehabilitative potential, for instance through perceptual training regimes, which have been used to improve visual

Utilization of MRI in HGG T1-weighted CE-MRI and T2-weighted MRI were most commonly applied on HGG patients, especially while in the evaluation of surgical area, ventricular system, choroid and spinal cavity, although they were not valuable 8. Among our cohort, 20 cases represented with contrast enhancement existed in surgical area, 11cases with contrast enhancement in non-surgical area, 6 cases with contrast enhancement in both surgical area and non-surgical area, 10 cases with contrast enhancement

Abstract Is gender dysphoria caused solely by neurological dysfunction? Abstract Dddasdf 1. Introduction Gender dysphoria, formerly referred to as gender identity disorder by Diagnostics and Statistical Manual of Mental Disorders by American Psychiatric Association 4th edition and earlier (American Psychiatric Association 2013; gender dysphoria fact sheet.pdf), is marked by irreconcilable differences in one’s biologically expressed gender and the preference for a cross-gender identity (American