Results 101 to 110 of about 3,223,690 (300)

Hitchhiker's guide to voxel segmentation for partial volume correction of in vivo magnetic resonance spectroscopy [PDF]

, 2016
Partial volume effects have the potential to cause inaccuracies when quantifying metabolites using proton magnetic resonance spectroscopy (MRS). In order to correct for cerebrospinal fluid content, a spectroscopic voxel needs to be segmented according to
Ramadan, Saadallah, Mountford, Carolyn, Quadrelli, Scott   +2 more
core   +1 more source

Microenvironment engineering unveils surface methoxy species origination in zeolite-catalyzed methanol chemistry under mild conditions

Nature Communications
Which came first, the chicken or the egg? This age-old riddle is also present for the formation sequence of the surface methoxy species and dimethyl ether in zeolite-catalyzed methanol chemistry due to their inevitable interconversion at high ...
Fengqing Liu, Xianfeng Yi, Jiamin Yuan, Youdong Xing, Yao Xiao, Zhiqiang Liu, Anmin Zheng   +6 more
doaj   +1 more source

NMR Environmental Noise Suppression Method Based on Multi-channel Transformer Reconstruction

Chinese Journal of Magnetic Resonance
Portable nuclear magnetic resonance (NMR) spectrometers are susceptible to external electromagnetic interference (EMI), leading to low signal-to-noise ratio and reduced analytical accuracy.
ZHAO Jing, BAO Qingjia, ZHANG Zhi, CHEN Gang, WU Zhaobo, HUANG Zhen, LIU Chaoyang   +6 more
doaj   +1 more source

Reversible Tuning of Multiple Molecular Kinking for Stem Cell Regulation In Vivo

Advanced Functional Materials, EarlyView.
In this work, we introduce the novel concept of background component‐free “multiple kinks” material platform composed solely of liganded multiple kink‐bearing molecules as a strategy for dynamic biomaterial design. Tri‐kink molecules enable effective near‐infrared light‐triggered ligand masking and visible light‐triggered ligand exposure, thereby ...
Kanghyeon Kim, Jeongah Shin, Chowon Kim, Honghwan Choi, Dahee Kim, Sungkyu Lee, Choongmo Kang, Hyunsik Hong, Taehoon Ha, Nayeon Kang, Jungyeon Rhi, Ramar Thangam, Yuri Kim, Jeongyun Heo, Cheol Hwan Kwak, Jangsun Hwang, Daun Jeong, Rasoul Moradi, Sunghoon Hur, Hyun‐Cheol Song, Hyun‐Do Jung, Min Jae Lee, Rongqin Huang, Pooyan Makvandi, Yun Suk Huh, Ji Hye Choi, Wenguo Cui, Sehoon Kim, Heemin Kang   +28 more
wiley   +1 more source

Ultra-short echo time cardiovascular magnetic resonance of atherosclerotic carotid plaque [PDF]

, 2010
Background Multi-contrast weighted cardiovascular magnetic resonance (CMR) allows detailed plaque characterisation and assessment of plaque vulnerability.
Sonia Nielles-Vallespin, Nielles-Vallespin, S, Firmin, DN, Chan, Cheuk F, Keenan, Niall G, Mary N Sheppard, Gatehouse, Peter, Chan Cheuk F, Firmin David N, Gatehouse, P, Keenan, NG, Sheppard, MN, Boyle, JJ, Peter Gatehouse, Chan, CF, Sheppard Mary N, Boyle Joseph J, Joseph J Boyle, Niall G Keenan, Nielles-Vallespin, Sonia, Boyle, Joseph J, Sheppard, Mary N, Pennell, Dudley J, Pennell, DJ, Pennell Dudley J, Gatehouse Peter, Dudley J Pennell, Nielles-Vallespin Sonia, David N Firmin, Cheuk F Chan, Keenan Niall G, Firmin, David N   +31 more
core   +1 more source

Protamine-1 encoded recombinant adeno-associated virus for enhanced brain magnetic resonance imaging

Magnetic Resonance Letters
Magnetic resonance imaging (MRI) is a powerful tool for diagnosing and monitoring brain diseases, but its low sensitivity can hinder early detection. To address this challenge, we utilized chemical exchange saturation transfer (CEST) MRI, which greatly ...
Kairu Xie, Yaping Yuan, Mou Jiang, Daiqin Chen, Shizhen Chen, Xin Zhou   +5 more
doaj   +1 more source

Exchange‐Coupled Two‐Dimensional MOFs

Advanced Functional Materials, EarlyView.
Graphene mediates ferromagnetic coupling between two‐dimensional metal‐organic frameworks and cobalt. Fe‐tetracyanobenzene develops a remanent magnetic response whose orientation follows the cobalt magnetization direction and persists up to room temperature, whereas Ni‐TCNB remains only field‐polarized.
Iulia Cojocariu, Pierluigi Gargiani, Manuel Valvidares, Frederik Schirdewahn, Matthias Muntwiler, Matteo Jugovac   +5 more
wiley   +1 more source

Bulk‐Like Spin Cycloid and Fast Switching in Freestanding BiFeO3

Advanced Functional Materials, EarlyView.
Freestanding BiFeO3 membranes overcome substrate‐induced constraints by simultaneously restoring the intrinsic bulk‐like spin cycloid and enabling ≈50% faster ferroelectric switching than substrate‐clamped epitaxial thin films. This combination of robust noncollinear antiferromagnetic order and efficient electric‐field switching establishes ...
Pratap Pal, Xiaoxi Deng, Gi‐Yeop Kim, Kyoungjun Lee, Jheng‐Cyuan Lin, Prithwijit Mandal, Jiangfeng Yang, Paul Steadman, Pascal Manuel, Roger D. Johnson, Si‐Young Choi, Paolo G. Radaelli, Chang‐Beom Eom   +12 more
wiley   +1 more source

Iron dyshomeostasis and enhanced myelination in the prefrontal cortex and ventral basal ganglia of a DJ-1 knockout model of early-onset Parkinson's disease

Neurobiology of Disease
Background: Early-onset Parkinson's disease (EOPD) differs from late-onset PD in clinical progression and neurodegenerative patterns. DJ-1 mutations are a known genetic cause of EOPD. Despite the recognized role of iron dyshomeostasis in PD pathogenesis,
Sijie Liu, Wei Chen, Xi Chen, Yue Cai, Linlin Cheng, Haodong Guo, Fuchun Lin, Yan Kang, Fuyi Wang, Yao Zhao, Hao Lei   +10 more
doaj   +1 more source

Tetracyclic π‐Extended Multi‐Resonant TADF Emitters for Green PSF‐OLEDs With 37.7% EQE and BT.2020‐Compatible Top‐Emitting Devices

Advanced Functional Materials, EarlyView.
Ultra‐narrow green multi‐resonance thermally activated delayed fluorescence emitters have been developed by linear π‐extension strategy using tetracyclic naphtho[2,3‐b]benzofuran unit. The resulting phosphorescence‐sensitized OLEDs achieve a maximum external quantum efficiency of 37.7% in the bottom‐emitting architecture, while the complementary top ...
Eo Jin Jeon, Truong Thi Thuy, Nikita Abitkar, Paramasivam Palanisamy, Jiheon Kim, Myungsun Sim, Athithan Maheshwaran, Jang Hyuk Kwon   +7 more
wiley   +1 more source