Results 261 to 270 of about 3,560,341 (309)

Complementing Engel Classification: Postoperative Scalp EEG as an Objective Indicator in SEEG‐Guided Radiofrequency Thermocoagulation—A Seizure‐Onset Pattern‐Based Stratified Analysis—

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Stereoelectroencephalography‐guided radiofrequency thermocoagulation (SEEG‐RFTC) is a minimally invasive therapy for drug‐resistant focal epilepsy. However, the relationship between specific seizure‐onset patterns (SOPs), particularly low‐voltage fast activity (LVFA), and postoperative scalp EEG normalization remains inadequately ...
Yi‐qing Yang, Rui Zhang, Haiyan Ma, Lu Yang, Xuefeng Qu, Qiqi Chen, Yan Zhang   +6 more
wiley   +1 more source

Stage‐Specific Patterns of Imaging and Non‐Motor Biomarkers in Spinocerebellar Ataxia Type 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Advancements in disease‐modifying therapies for spinocerebellar ataxia Type 3 (SCA3) underscore the need for robust biomarkers to monitor disease progression and evaluate treatment efficacy. Although motor phenotypes have been well characterized, less is known about non‐motor and imaging‐based features across different disease stages.
Chun Li, Zhi‐Xian Ye, Xuan‐Yu Chen, Liang‐Liang Qiu, Zhi‐li Chen, Yu‐Sen Qiu, Wei Lin, Ru‐Ying Yuan, Xin‐Tong Yu, Chun‐Yu Huang, Xin‐Yuan Chen, Min‐Ting Lin, Jian‐Ping Hu, Wan‐Jin Chen, Ning Wang, Shao‐Bo Yao, Shi‐Rui Gan, Ying Fu   +17 more
wiley   +1 more source

The Association of Amyloid‐β and Tau With Synaptic Dysfunction in Alzheimer's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the relative contributions of amyloid and tau to synaptic dysfunction in Alzheimer's disease (AD). Methods We included 109 cognitively unimpaired and impaired individuals from the Geneva Memory Center with available CSF synaptic biomarkers (neurogranin, SNAP‐25, GAP‐43). Participants were stratified according to amyloid (A)
Fausto Roveta, Augusto J. Mendes, Valentina Garibotto, Cecilia Boccalini, Aurelien Lathuiliere, Innocenzo Rainero, Elisa Rubino, Henrik Zetterberg, Nicholas J. Ashton, Federica Ribaldi, Giovanni B. Frisoni, for the Alzheimer's Disease Neuroimaging Initiative   +11 more
wiley   +1 more source

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Differential Spatial Modulation

IEEE Transactions on Vehicular Technology, 2014
Spatial modulation (SM) is a newly emerging multiple-input–multiple-output technique that activates only a single antenna for transmission at any time instant and uses the index of the active antenna as an additional information-carrying mechanism. However, by its nature, SM decoding is coherent in that channel state information (CSI) is required at ...
Yuyang Bian, Xiang Cheng 0001, Miaowen Wen, Liuqing Yang 0001, H. Vincent Poor, Bingli Jiao   +5 more
openaire   +1 more source

Differential spatial multiplexing

2004 IEEE Wireless Communications and Networking Conference (IEEE Cat. No.04TH8733), 2004
In this paper, we present a novel differential space-time (DST) architecture which is well suited for high data-rate applications but requires only a linear decoding complexity. Multiple transmit antennas are divided into groups and DST encoding is applied individually to each group.
Shun K. Cheung, Robert Schober
openaire   +2 more sources

Residential Spatial Differentiation Based on Urban Housing Types—An Empirical Study of Xiamen Island, China [PDF]

Sustainability, 2017
Residential spatial differentiation, also called residential segregation, is a representation of the differentiation of social stratum in economic income, social status, education degree, lifestyle, and other aspects, based on an urban geographical space.
Tao Lin, Meixia Lin, Zhaowu Yu
exaly   +2 more sources

Spatial competition with differentiated products

Regional Science and Urban Economics, 1989
Abstract We consider a model of competition in which products may differ in both location and brand specification. We assume linear transportation costs in the geographic space and quadratic costs of deviation from the most preferred product in the brand space. Brand specifications are given but prices and locations are variable.
Benakiva, M., Depalma, A., Thisse, Jacques-François   +2 more
openaire   +2 more sources

Differential Quadrature Spatial Modulation

IEEE Transactions on Communications, 2017
Quadrature spatial modulation (QSM) is a recent multiple input multiple output transmission scheme that attracted significant research interest. QSM expands the spatial constellation diagram of spatial modulation (SM) to enhance the overall spectral efficiency while retaining all SM inherent advantages.
Raed Mesleh, Saud Althunibat, Abdelhamid Younis   +2 more
openaire   +2 more sources

A differential scheme for Spatial Modulation

2013 IEEE Global Communications Conference (GLOBECOM), 2013
In this paper, by considering the case of two transmit antennas, we propose a novel approach for introducing differential signaling into Spatial Modulation (SM)/Space-Shift Keying (SSK) and thus develop a differential SM/SSK (DSM/DSSK) scheme, where neither the transmitter nor the receiver has access to channel state information.
Yuyang Bian, Miaowen Wen, Xiang Cheng 0001, H. Vincent Poor, Bingli Jiao   +4 more
openaire   +2 more sources

Differential effects of aging on spatial abilities

Experimental Brain Research, 2022
Visuospatial functions are particularly vulnerable to the aging process. Decline of these processes can seriously affect an individual's functional independence and quality of life. Effectively assessing the spatial abilities of older adults is, therefore, crucial for identifying strategies to maintain cognitive functioning.
Daniela E. Aguilar Ramirez, Jarrod Blinch, Kate Takeda, Jennifer L. Copeland, Claudia L. R. Gonzalez   +4 more
openaire   +2 more sources