Results 111 to 120 of about 669,562 (292)
Functional and Structural Evidence of Neurofluid Circuit Aberrations in Huntington Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Disrupted neurofluid regulation may contribute to neurodegeneration in Huntington disease (HD). Because neurofluid pathways influence waste clearance, inflammation, and the distribution of central nervous system (CNS)–delivered therapeutics, understanding their dysfunction is increasingly important as targeted treatments emerge.
Kilian Hett +8 more
wiley +1 more source
Worker exposure to noise during computer manufacturing: measurement and control [PDF]
, 2009 Includes bibliographical ...
Sheffer, Jennifer
core
Measurement Techniques for Noise Figure and Gain of Bipolar Transistors [PDF]
, 1993 First, the concepts of reflection coefficients, s-parameters, Smith chart, noise figure, and available power gain will be introduced. This lays out the foundation for the presentation of techniques on measuring noise figure and gain of high speed bipolar
Jung, Wayne Kan
core +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano +11 more
wiley +1 more source
New Methods to Improve Noise Figure of Microwave CMOS LNAs [PDF]
, 2007 本論文目的在於研究使用商用標準金氧半場效電晶體積體電路製程來設計具有更佳特性之低雜訊放大器。論文中使用了兩種改善雜訊特性的方法設計金氧半場效電晶體之低雜訊放大器。 第一個用來改善低雜訊放大器雜訊特性的方法是選擇電晶體大小以達到雜訊最佳化的目的。本論文所展現的方法由於是將晶片上電感的寄生電阻直接納入低雜訊的設計過程，可以比一般傳統的方法得到更合適的電晶體。此電路在10 GHz的頻帶中，量測結果顯示11.25 dB的增益，以及低於3 dB的雜訊指數。 第二個用來改善低雜訊放大器雜訊特性的方法是在串極串基架構(
Sun, Kuo-Jung, 孫國榮
core
Физика волновых процессов и радиотехнические системыBackground. Currently, Software-Defined Radio receivers are widely used for weak-signal reception, radio monitoring, and scientific research; however, their sensitivity is often limited by a high intrinsic noise figure. Methods.
Mikhail P. Kalaev +2 more
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu +10 more
wiley +1 more source
Accurate Noise Figure Measurements for Highly Mismatched Preamplifiers [PDF]
, 2018 A method reducing the uncertainty of noise figure measurements of highly mismatched preamplifiers is presented. In many cases when measuring the noise figure of preamplifiers for MRI receive arrays the uncertainty is approximately ±0.4 dB.
Ardenkjær-Larsen, Jan Henrik +3 more
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Quantifying the Impact of Ocrelizumab on Paramagnetic Rim Lesions in Multiple Sclerosis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Paramagnetic rim lesions (PRLs) are a subset of chronic active multiple sclerosis (MS) lesions marked by iron‐laden microglia and macrophages. Ocrelizumab, a monoclonal antibody targeting CD20+ B cells, suppresses acute MS activity, but its effect on PRLs remains unclear. In a longitudinal study of 29 ocrelizumab‐treated patients with at least
Kimberly H. Markowitz +9 more
wiley +1 more source
Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi +8 more
wiley +1 more source