Results 31 to 40 of about 197 (184)

Modulação Em Largura De Pulsos Para Conversor Ca-ca A Três Braços

Eletrônica de Potência, 2007
Este trabalho apresenta uma nova abordagem da modulação em largura de pulsos para um conversor estático ca-ca a três braços, utilizado em sistemas de energia ininterrupta (SEI), monofásico, on-line.
Paulo F. Seixas, Porfírio C. Cortizo, Leandro Oliveira   +2 more
doaj   +1 more source

Metodologia de projeto de filtros de emissão conduzida aplicada a conversores CA/CC monofásicos

Eletrônica de Potência
O projeto de filtros de interferência eletromagnética consiste em especificar a topologia e os elementos de uma rede elétrica cuja função é atenuar sinais interferentes. Esse trabalho apresenta uma metodologia iterativa de projeto de filtros de EMI para fontes chaveadas baseada no teorema do elemento sequencial e no conceito de efeito dominante em ...
Maicon W. M. De Carvalho, Djonny Weinzierl, Sérgio V. G. Oliveira   +2 more
openaire   +3 more sources

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Alimentação de Lâmpadas Compactas Fluorescentes Integrais a Partir de Retificador Com Pfc e Tensão de Saída Variável

Eletrônica de Potência, 2011
Este artigo apresenta o projeto de um conversor CA-CC com correção do fator de potência e tensão de saída variável para alimentação de lâmpadas fluorescentes compactas integrais.
Mikhail Polonskii
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Restauração de Afundamentos de Tensão de Curta Duração em Redes Elétricas Não- Senoidais

Eletrônica de Potência, 2021
Este trabalho apresenta um método de inserção de tensão na rede elétrica com distorções harmônicas para proteção de cargas sensíveis a afundamentos de tensão de curta duração.
João R. S. Martins, Darlan A. Fernandes, Fabiano F. Costa, Maurício B. R. Corrêa, Edison R. C. da Silva   +4 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

FEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg, Martine Hjeltnes, Josephine Krieger, Joshua E. Elias, Maria Stensland, Kristian Holm, Xiaojun Jiang, Chuki Khangsar, Tuula A. Nyman, Arthur Kaser, Johannes R. Hov, Tom H. Karlsen, Nicole C. Kaneider, Frode L. Jahnsen, Georg Schneditz   +14 more
wiley   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

FEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source