Results 81 to 90 of about 97,220 (199)

Interaction-dependent anisotropy of fractional quantum Hall states

Physical Review B, 2019
A fractional quantum Hall (FQH) system with broken rotational symmetry exploits its geometric degree of freedom to minimize its ground state energy. The mass anisotropy of bare particles interacting isotropically is partially inherited by the many-body FQH state, and the extent to which it does so depends on the type of interaction, filling fraction ...
Krishna, Akshay, Chen, Fan, Ippoliti, Matteo, Bhatt, R. N.   +3 more
openaire   +3 more sources

Feasibility of 3.0 T diffusion-weighted nuclear magnetic resonance imaging in the evaluation of functional recovery of rats with complete spinal cord injury

Neural Regeneration Research, 2015
Diffusion tensor imaging is a sensitive way to reflect axonal necrosis and degeneration, glial cell regeneration and demyelination following spinal cord injury, and to display microstructure changes in the spinal cord in vivo.
Duo Zhang, Xiao-hui Li, Xu Zhai, Xi-jing He   +3 more
doaj   +1 more source

Fractional Calculus for Continuum Mechanics - anisotropic non-locality

, 2015
In this paper the generalisation of previous author's formulation of fractional continuum mechanics to the case of anisotropic non-locality is presented. The considerations include the review of competitive formulations available in literature.
Sumelka, Wojciech
core   +1 more source

Exploring the relationship between cognitive performance and magnetic resonance imaging diffusion parameters in elderly individuals

Einstein (São Paulo)
Objective This study evaluated the association between cognitive function and quantitative magnetic resonance imaging analyses, including brain volume, white matter hyperintensity volume, and diffusivity metrics.
Mariana Athaniel Silva Rodrigues, Thiago Pereira Rodrigues, Aurea Beatriz Martins Bach, Artur José Marques Paulo, Michel Satya Nasvlasky, Yeda Aparecida de Oliveira Duarte, Mayana Zatz, Edson Amaro Junior   +7 more
doaj   +1 more source

Diffusion tensor imaging derived metrics in high grade glioma and brain metastasis differentiation [PDF]

Archive of Oncology, 2023
Background: Pretreatment differentiation between glioblastoma and metastasis is a frequently encountered dilemma in neurosurgical practice. Distinction is required for precise planning of resection or radiotherapy, and also for defining further ...
Brakus Alma, Ostojić Jelena, Lučić Miloš   +2 more
doaj  

Scattering Polarization of Hydrogen Lines in Weakly Magnetized Stellar Atmospheres I. Formulation and Application to Isothermal Models

, 2011
Although the spectral lines of hydrogen contain valuable information on the physical properties of a variety of astrophysical plasmas, including the upper solar chromosphere, relatively little is known about their scattering polarization signals whose ...
Avrett, Barklem, Belluzzi, Bommier, Bommier, Bommier, Casini, Favati, Fontenla, Gandorfer, Harrington, Janev, Javier Trujillo Bueno, Jefferies, Jiří Štěpán, Judge, Khan, Landi Degl’Innocenti, Landi Degl’Innocenti, Manso Sainz, Manso Sainz, Manso Sainz, Mihalas, Przybilla, Raouafi, Rybicki, Rybicki, Sahal-Bréchot, Sampoorna, Seaton, Stehlé, Stehlé, Stenflo, Trujillo Bueno, Trujillo Bueno, Trujillo Bueno, Trujillo Bueno, Trujillo Bueno, Trujillo Bueno, Trujillo Bueno, Trujillo Bueno, Štěpán, Štěpán, Štěpán   +43 more
core   +1 more source

Anisotropic Anomalous Diffusion assessed in the human brain by scalar invariant indices

, 2010
A new method to investigate anomalous diffusion in human brain is proposed. The method has been inspired by both the stretched-exponential model proposed by Hall and Barrick (HB) and DTI.
Bozzali, M., Capuani, S., De Santis, S., Gabrielli, A., Macaluso, E., Maraviglia, B.   +5 more
core   +1 more source

Diffusion tensor imaging of brain white matter in Huntington gene mutation individuals

Arquivos de Neuro-Psiquiatria
Objective To evaluate the role of the involvement of white matter tracts in huntingtin gene mutation patients as a potential biomarker of the progression of the disease. Methods We evaluated 34 participants (11 symptomatic huntingtin gene mutation, 12
Roberta Arb Saba, James H. Yared, Thomas M. Doring, Med Phys, Vanderci Borges, Henrique Ballalai Ferraz   +5 more
doaj   +1 more source

Activation of less affected corticospinal tract and poor motor outcome in hemiplegic pediatric patients: a diffusion tensor tractography imaging study

Neural Regeneration Research, 2015
The less affected hemisphere is important in motor recovery in mature brains. However, in terms of motor outcome in immature brains, no study has been reported on the less affected corticospinal tract in hemiplegic pediatric patients.
Jin Hyun Kim, Su Min Son
doaj   +1 more source

Quasi-P-Wave Reverse Time Migration in TTI Media with a Generalized Fractional Convolution Stencil

Fractal and Fractional
In seismic modeling and reverse time migration (RTM), incorporating anisotropy is crucial for accurate wavefield modeling and high-quality images. Due to the trade-off between computational cost and simulation accuracy, the pure quasi-P-wave equation has
Shanyuan Qin, Jidong Yang, Ning Qin, Jianping Huang, Kun Tian   +4 more
doaj   +1 more source