Results 31 to 40 of about 2,311,303 (299)

Observation of an oxonium ion intermediate in ethanol dehydration to ethene on zeolite

Nature Communications, 2019
Zeolite-catalyzed dehydration of ethanol offers promising perspectives for the sustainable production of ethene, while the initial step of ethanol dehydration is still unclear.
Xue Zhou, Chao Wang, Yueying Chu, Jun Xu, Qiang Wang, Guodong Qi, Xingling Zhao, Ningdong Feng, Feng Deng   +8 more
doaj   +1 more source

Magnetic and Electric Excitations in Split Ring Resonators

, 2007
We studied the electric and magnetic resonance of U-shaped SRRs. We showed that higher order excitation modes exist in both of the electric and magnetic resonances. The nodes in the current distribution were found for all the resonance modes.
Koschny, Thomas, Soukoulis, Costas M., Zhou, Jiangfeng   +2 more
core   +1 more source

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd, Melissa Taylor, Helen Fulbright, Bob Phillips   +3 more
wiley   +1 more source

Spatial stochastic resonance in 1D Ising systems

, 1999
The 1D Ising model is analytically studied in a spatially periodic and oscillatory external magnetic field using the transfer-matrix method. For low enough magnetic field intensities the correlation between the external magnetic field and the response in
Erzsébet Ravasz, J. F. Lindner, J. F. Lindner, J. Javier Brey, K.-T. Leung, K.-T. Leung, L. Gammaitoni, L. Schimansky-Geier, M. Locher, Parshant M. Gade, Porus Lakdawala, S. W. Sides, S. W. Sides, U. Siewert, Z. Néda, Z. Néda, Zoltán Néda, Árpád Rusz   +17 more
core   +1 more source

Prognostic Impact of Treatment Modalities, Including Targeted Compartmental Radio‐Immunotherapy, in a Cohort of Neuroblastoma Patients With CNS Metastases at Relapse

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez, Anna Felip‐Badia, Marina Caballero‐Bellon, Nazaret Sanchez‐Sierra, Alicia Castañeda, Moira Garraus, Maite Gorostegui, Margarida Simão‐Rafael, Juan Pablo Muñoz, Marta Perez‐Somarriba, Salvador Mañe, Mariana Cecilia Planells, Sara Perez‐Jaume, Jaume Mora   +13 more
wiley   +1 more source

Magnetic exchange interaction between rare-earth and Mn ions in multiferroic hexagonal manganites

, 2008
We report a study of magnetic dynamics in multiferroic hexagonal manganite HoMnO3 by far-infrared spectroscopy. Low-temperature magnetic excitation spectrum of HoMnO3 consists of magnetic-dipole transitions of Ho ions within the crystal-field split J=8 ...
A. Abragam, A. D. LaForge, A. J. Taylor, D. N. Basov, D. Talbayev, N. Hur, R. D. Averitt, S. A. Trugman   +7 more
core   +1 more source

Clinical Characteristics and Prognostic Risk Factors for Pediatric B‐Cell Lymphoblastic Lymphoma: A Multicenter Retrospective Cohort Study for China Net Childhood Lymphoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐cell lymphoblastic lymphoma (B‐LBL) represents a rare variety of non‐Hodgkin lymphoma, with limited research on its biology, progression, and management. Methods A retrospective analysis was performed on the clinical characteristics of 256 patients aged ≤18 years who received treatment under the China Net Childhood Lymphoma (CNCL)‐
Zhijuan Liu, Jian Wang, Ling Jin, Yanlong Duan, Fu Li, Yueping Jia, Leping Zhang, Xiaojun Yuan, Wei Liu, Ying Liu, Ansheng Liu, Mincui Zheng, Yunpeng Dai, Lian Jiang, Lirong Sun, Xiaowen Zhai, Rong Liu, Chunju Zhou, Zifen Gao, Yonghong Zhang, Xiaomei Yang   +20 more
wiley   +1 more source

Research on MRI Gradient Coil Magnetic Field Induced Eddy Current Method

Zhongguo yiliao qixie zazhi
After the production of the gradient coil of the magnetic resonance imaging system, electromagnetic field testing is required to verify whether the assembly accuracy meets the electromagnetic field requirements.
Xiaotao ZHANG, Yicheng LI, Zhanping ZHENG, Mingke WANG, Like FENG, Congbo LI   +5 more
doaj   +1 more source

Trigeminal nerve and pathologies in magnetic resonance imaging : a pictorial review [PDF]

, 2018
A variety of conditions may affect the trigeminal nerve. Magnetic resonance imaging is the modality of choice when trigeminal nerve pathology is suspected, and this modality plays an essential role in detecting causes. This review illustrates some of the
Akgoz, Ayca, Bulut, Elif, Gocmen, Rahsan, Gunes, Altan, Mocan, Burce, Oguz, Kader Karli   +5 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source