Results 91 to 100 of about 436,409 (287)

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

Influence of TiC and TiN Ceramic Reinforcements on the Microstructure, Thermal Expansion Behavior, and Tensile Properties of Invar 36 Manufactured by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji, Natasha Sacks, Johannes Pötschke, Björn Matthey   +3 more
wiley   +1 more source

Assessing Cerebral White Matter Microstructure in Children With Congenital Sensorineural Hearing Loss: A Tract-Based Spatial Statistics Study

Frontiers in Neuroscience, 2019
ObjectivesTo assess the microstructural properties of cerebral white matter in children with congenital sensorineural hearing loss (CSNHL).MethodsChildren (>4 years of age) with profound CSNHL and healthy controls with normal hearing (the control ...
Muliang Jiang, Zuguang Wen, Liling Long, Chi Wah Wong, Ningrong Ye, Chishing Zee, Bihong T. Chen   +6 more
doaj   +1 more source

Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning

Advanced Engineering Materials, EarlyView.
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley   +1 more source

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

Diffusion tensor tractography as a supplementary tool to conventional MRI for evaluating patients with myelopathy

The Egyptian Journal of Radiology and Nuclear Medicine, 2014
Purpose: The aim of this study was to assess the clinical utility of DTI including apparent diffusion coefficient (ADC), fractional anisotropy (FA), in patients with symptoms of spinal cord myelopathy. Patients and methods: Fifteen subjects with clinical
Amal Amin A. El Maati, Nivine Chalabi
doaj   +1 more source

Enhancement of the Through‐Thickness Electrical Conductivity of Carbon‐Fiber‐Reinforced Plastics Using Large Graphite Particles

Advanced Engineering Materials, EarlyView.
To enhance through‐thickness conductivity without sacrificing impregnation, large spherical graphite particles are intentionally employed in a low‐viscosity resin. Unlike finer conductive fillers, these particles remain outside the fiber bundles and accumulate in resin‐rich interlaminar regions during molding.
Keito Hosoe, Yu Zhou, Shintaro Kamiyama, Takao Okada, Tomohiro Yokozeki, Ryoma Tokonami, Tatsuhiro Takahashi   +6 more
wiley   +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

Not lesser but Greater fractional anisotropy in adolescents with alcohol use disorders

NeuroImage: Clinical, 2013
The objective of this study is to examine white matter microstructure using diffusion tensor imaging (DTI) in a sample of adolescents with alcohol use disorders (AUD) and no psychiatric or substance co-morbidity.Fifty adolescents with AUD and fifty non-alcohol abusing controls matched on gender and age were studied with DTI, neurocognitive testing, and
Cardenas, Valerie A., Greenstein, David, Fouche, Jean-Paul, Ferrett, Helen, Cuzen, Natalie, Stein, Dan J., Fein, George   +6 more
openaire   +2 more sources

Rotary 3D Printing With Integrated Electroplating

Advanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria, Nicola Larovere, Moslem Mohammadi, Gianluca Percoco, Ali Zolfagharian, Gianni Stano   +5 more
wiley   +1 more source