Results 71 to 80 of about 12,257,100 (239)

Anti‐CD20 Discontinuation Versus Continuation in People Aged Over 50 With Non‐Active Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether discontinuing anti‐CD20 therapy in people with relapsing‐onset MS aged over 50 is associated with an increased risk of relapse, inflammatory activity, confirmed disability accrual, and serious infection compared with continuing therapy.
Alexia Moukhine   +40 more
wiley   +1 more source

Direct digital synthesizers : theory, design and applications [PDF]

open access: yes, 2000
Traditional designs of high bandwidth frequency synthesizers employ the use of a phase-locked-loop (PLL). A direct digital synthesizer (DDS) provides many significant advantages over the PLL approaches. Fast settling time, sub-Hertz frequency resolution,
Vankka, Jouko
core   +1 more source

A 60 GHz Broadband LNA With Joined Variable Gain Control and Switching in 22 nm FD-SOI

open access: yesIEEE Access
This paper investigates a 60 GHz low-power broadband low noise amplifier (LNA) with variable gain control. To prove the concept, the circuit is implemented in a 22nm fully depleted silicon on insulator (FD-SOI) CMOS technology.
Xin Xu   +3 more
doaj   +1 more source

Design of the Broadband Metamaterial Absorber Based on Dispersed Carbon Fibers in Oblique Incidence

open access: yesIEEE Access, 2020
In this paper, a broadband double-layer metamaterial absorber (MMA) based on carbon fibers (CFs) is proposed, which consists of three basic elements. Firstly, the reflectivity of CFs double-layer MMA in normal incidence is analyzed, and compared to the ...
Leilei Yan   +3 more
doaj   +1 more source

Boundary‐Dependent Sleep–Wake Dysregulation in Idiopathic Hypersomnia

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Idiopathic hypersomnia (IH) presents with excessive daytime sleepiness (EDS) despite apparently preserved nocturnal sleep, challenging traditional models of hypersomnolence based on sleep loss or fragmentation. We aimed to test the hypothesis that EDS in IH reflects excessive stabilization of the sleep state, consistent with ...
Samantha Mombelli   +13 more
wiley   +1 more source

Cerebrospinal Fluid Over Plasma Links Analytes to Cognitive Decline in Older Adults at Risk for Alzheimer's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To identify inflammatory analytes in cerebrospinal fluid (CSF) and plasma associated with cognitive decline in cognitively normal (CN) older adults at risk for Alzheimer's disease (AD). Methods In a longitudinal study of 118 CN older adults (65–80 years, 54% APOE ε4, 26% preclinical AD), 1331 CSF and 1501 plasma analytes were ...
Jagan A. Pillai   +13 more
wiley   +1 more source

Open-source design of integrated circuits.

open access: yesElektrotech. Informationstechnik, 2023
This paper presents the design of a self-clocked 12-bit non-binary fully differential SAR-ADC using the SKY130 open-source PDK. The entire mixed-signal circuit design and layout were created with free and open-source software. The ADC reaches a sample rate of up to 1.44 MS/s at 1.8 V supply while consuming 703 μμW of power on a small 0.175 mm2 area.
Patrick Fath   +3 more
openaire   +2 more sources

Early Clinical and Cerebrospinal Fluid Predictors of 1‐Year Recurrence in Autoimmune GFAP Astrocytopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Autoimmune glial fibrillary acidic protein astrocytopathy (GFAP‐A) is an inflammatory central nervous system disorder with variable outcomes. Relapse occurs in a subset of patients, but early predictors remain unclear. We aimed to identify admission‐available features associated with 1‐year recurrence and develop an interpretable ...
Qingting Hong   +10 more
wiley   +1 more source

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

open access: yesAnnals 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   +6 more
wiley   +1 more source

Design of the two-tier MUX in 65 nm SRAM(65 nm SRAM两级多路选择器的设计)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
为提高SRAM的存取速度,节省芯片面积,抑制工艺波动的影响,在对SRAM多路选择架构研究基础上改进了一种应用于65 nm SRAM的多路选择架构,建立了此多路选择架构的小信号模型.采用蒙特卡罗仿真导出了位线传输管的最小尺寸限制.同时,提出一种简单的估算电路节点时间常数的方法,用于从理论上分析改进的两级架构相对于传统的一级架构的优势,即当两级架构的两级译码的特征数字相近时可取得最佳性能,且灵敏放大器的特征数字越大时两级架构的优势越明显.仿真验证的结果显示,在面积几乎不变、控制复杂性几乎不增加前提下 ...
ZHANGQiang(张强), WUXiao-bo(吴晓波)
doaj   +1 more source

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