Results 81 to 90 of about 1,912,599 (229)

Longitudinal Assessment of Biomarkers in ALS: Discriminative Biomarkers for Disease Progression and Survival

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the association and discriminative performance of serum biomarkers with clinical disease progression and survival in patients with amyotrophic lateral sclerosis (ALS). Methods This retrospective study, conducted at Houston Methodist Hospital, Houston, TX, used longitudinal serum samples collected between January 2018 and ...
David R. Beers   +7 more
wiley   +1 more source

Low HDL-c levels at admission are associated with greater severity and worse clinical outcomes in patients with COVID-19 disease. [PDF]

open access: yesAtheroscler Plus, 2023
Parra S   +9 more
europepmc   +1 more source

Conversores utilizando células de comutação de quatro estados [PDF]

open access: yes, 2008
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.O presente trabalho versa sobre conversores estáticos baseados em uma célula de comutação de quatro estados.
Peraça, Mauro Tavares
core  

Characterizing Cutaneous α‐Synuclein Deposition and Seeding Activity in Parkinson's Disease Subtypes

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cutaneous phosphorylated α‐synuclein (p‐syn) and α‐synuclein seeding activity are promising biomarkers for Parkinson's disease (PD), but their clinical value remains uncertain due to disease heterogeneity. This study evaluates these two biomarkers in PD patients to inform phenotype‐specific diagnosis and disease severity assessment ...
Yuting Jin   +8 more
wiley   +1 more source

Compensação De Desequilíbrios De Carga Empregando Conversor Estático Operando Com Modulação Em Largura De Pulso

open access: yesEletrônica de Potência, 2004
É cada vez maior a preocupação com a qualidade da energia elétrica tanto do ponto de vista do consumidor quanto da concessionária. Um dos grandes problemas encontrados é o desequilíbrio de correntes trifásicas devido à utilização de cargas monofásicas ...
Rodrigo Cutri, Lourenço Matakas Jr.
doaj   +1 more source

Estudo de conversores CC-CC trifásicos isolados do tipo Push-Pull [PDF]

open access: yes, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia ElétricaNeste trabalho são propostos cinco novos conversores CC-CC isolados em alta frequência do tipo push-pull, dentre os quais se ...
Larico, Hugo Rolando Estofanero
core  

Association Between Neurofilament Light Chain and Real‐World Ambulatory Function in Progressive MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurofilament light chain (NfL) is a biomarker of neuroaxonal injury in multiple sclerosis (MS), yet associations with functional outcomes remain unclear. Longitudinal associations between serum NfL (sNfL) and daily step count (STEPS) from wearable devices were assessed in a large international progressive MS cohort.
Gabby B. Joseph   +5 more
wiley   +1 more source

Proposta de nova topologia de conversor CA-CA a capacitor chaveado [PDF]

open access: yes, 2023
The present work aims to present a new topology of direct AC-AC converter to switched capacitor. This topology employs only semiconductor elements and capacitors, presenting itself as an alternative to low voltage autotransformers with reduced cost and ...
SOUZA, Alencar Franco de
core   +1 more source

Estudo e realização de um conversor CC-CA com comutação suave utilizando um transformador de alta frequencia [PDF]

open access: yes, 1993
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Florianópolis, 1993.O propósito deste trabalho é apresentar e analisar um conversor CC-CA com estágio intermediário de alta freqüência indicado para compor sistemas ininterruptos de energia
Vidor, Dalton Luiz Rech
core  

Clinical, Histologic, and Serological Predictors of Renal Function Loss in Lupus Nephritis

open access: yesArthritis Care &Research, EarlyView.
Objective Kidney survival is the ultimate goal in lupus nephritis (LN) management, but long‐term predictors remain inadequately studied, requiring long‐term follow‐up. This study aimed to identify baseline and early longitudinal predictors of kidney survival in the Accelerating Medicines Partnership LN longitudinal cohort.
Shangzhu Zhang   +21 more
wiley   +1 more source

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