Results 71 to 80 of about 50,563 (299)

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

The Relationship Between Inflammation and Central Nervous System in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Aim Multiple sclerosis is an autoimmune demyelination disease that is seen especially in the young population and has a progressive course, causing motor, sensory, and cognitive deficits. In the literature, the pathogenesis of MS disease and the interconnection between the immune and central nervous system in the disease have not been fully ...
Gamze Ansen, Ali Behram Salar, Abdulkadir Ermis, Erkingul Birday, Lutfu Hanoglu, Bayram Ufuk Sakul   +5 more
wiley   +1 more source

High-Efficiency Resonant DC-DC Converter With Low Input Current Ripple for DC Power Distribution Systems

IEEE Access
A novel resonant dc-dc converter with high efficiency and low input current ripple is presented. Without adding any components, the proposed converter significantly improves the efficiency of the conventional half-bridge converter that has input current ...
Ki-Mok Kim
doaj   +1 more source

Implementation of a Parallel-Series Resonant Converter with Wide Input Voltage Range

Energies, 2019
A new resonant converter is presented to have the advantages of soft switching operation on power devices, without reverse recovery current loss on power diodes and wide input voltage range operation.
Bor-Ren Lin
doaj   +1 more source

Methodologies for the design of LCC voltage-output resonant converters [PDF]

, 2006
: The paper presents five structured design methodologies for third-order LCC voltage output resonant converters. The underlying principle of each technique is based on an adaptation of a FMA equivalent circuit that accommodates the nonlinear behaviour ...
Batarseh, C.M. Bingham, D. Howe, D.A. Stone, Forsyth, H.I. Sewell, Hayes, M.P. Foster, Sewell   +8 more
core   +1 more source

Portable Low‐Field Magnetic Resonance Imaging in People With Human Immunodeficiency Virus

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The aging population of people with HIV (PWH) raises heightened concerns regarding accelerated aging and dementia. Portable, low‐field MRI (LF‐MRI) is an innovative technology that could enhance access and facilitate routine monitoring of PWH.
Annabel Sorby‐Adams, Malachi Keo, Jennifer Guo, Daire Daly, Richard Ahern, Kimon Zachary, Gregory Robbins, Rajesh T. Gandhi, Bragi Sveinsson, Adam de Havenon, Kevin N. Sheth, Otto Rapalino, Juan Eugenio Iglesias Gonzales, W. Taylor Kimberly, Shibani S. Mukerji   +14 more
wiley   +1 more source

Pseudo-Partial-Power Switch-Multiplexed Resonant Converter with Wide Voltage Gain

Energies
Full-bridge resonant converters have gained widespread adoption due to their excellent performance characteristics. However, these converters face limitations in terms of gain expansion.
Xiaoying Chen, Zehong Yao, Yizhan Zhuang, Yiming Zhang   +3 more
doaj   +1 more source

A Structure-Reconfigurable Soft-Switching DC-DC Converter for Wide-Range Applications

Energies, 2019
In this paper, a structure-reconfigurable resonant DC-DC (direct current − direct current) converter is presented. By controlling the state of the auxiliary switch, the converter could change the resonant structure to acquire a high efficiency and ...
Xianxu Huo, Ke Xu, Ruixin Liu, Xi Chen, Zhanchun Li, Haiyun Yan   +5 more
doaj   +1 more source

Constant-frequency clamped-mode resonant converters [PDF]

IEEE Transactions on Power Electronics, 1987
Two clamped-mode resonant converters are proposed which operate at a constant frequency while retaining the desired features of conventional series- and parallel-resonant converters. State-plane analyses are performed which identify all possible circuit-operating modes of a clamped-mode series-resonant converter and define their mode boundaries.
Fu-Sheng Tsai, Peter Materu, Fred C. Lee
openaire   +1 more source

Fibrinogen Changes Before and After Intravenous Thrombolysis as Predictors of Cerebral Injury and Clinical Outcomes in Acute Ischemic Stroke: A Multicenter Prospective Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma fibrinogen is essential in thrombosis and fibrinolysis, yet its dynamic changes pre‐ and post‐intravenous thrombolysis (IVT) for predicting brain injury severity and prognosis in acute ischemic stroke (AIS) patients remain unclear.
Wenhai Zhai, Yang Qu, Reziya Abuduxukuer, Kejia Zhang, Peng Zhang, Xin Tang, Huaimei Zhang, Lijuan Wang, Lichong Yang, Shuangxu Tan, Zhimei Yuan, Ce Han, Lili He, Yuping Zheng, Fenglan Zhao, Lijie Guo, Ligang Jiang, Jinfeng Li, Yongfei Jiang, Xuexia Zou, Dan Xu, Han Xu, Xiaojia Wang, Yingbin Qi, Xuefeng Hu, Yu Zhang, Zhen‐Ni Guo, Hang Jin, on behalf of the Biomarkers of Brain Injury Investigator Study Group   +28 more
wiley   +1 more source