Results 51 to 60 of about 372,964 (306)

Advancing Age Modulates Associations Between Cognitive Impairment and Brain Volumes in Early MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Cognitive impairment is common in multiple sclerosis (MS), but manifestations following the first demyelinating event are relatively unexplored. We investigated cross‐sectional associations between magnetic resonance imaging (MRI)–derived brain volumes and the presence of cognitive impairment outcomes five years after the first ...
Piriyankan Ananthavarathan   +14 more
wiley   +1 more source

Design of cam-linkage combined mechanism based on Fourier series

open access: yesShipin yu jixie
ObjectiveTo enhance the motion smoothness and reliability of cam-linkage combined mechanisms under high-speed operating conditions and to investigate a cam profile design method based on Fourier series.MethodsThis study derives the motion law expression ...
TAN Rongdeng   +6 more
doaj   +1 more source

Recursos CAD/CAM voltados ao modelamento e a usinagem de cavidades para moldes, com estudo de casos de aplicação [PDF]

open access: yes, 1993
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoÉ notório, e cada vez mais crescente, a substituição de diversos materiais existentes no mercado pelo plástico, principalmente na área da engenharia.
Volpato, Neri
core  

Comprehensive Characterization of 98 Chinese Cases of Genetic Creutzfeldt‐Jakob Disease With T188K Mutation

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterize the demographic, clinical, and laboratory features of the Chinese patients of genetic Creutzfeldt‐Jakob disease with T188K variant (T188K‐gCJD), the most common subtype of genetic prion diseases (gPrDs) in China. Methods In this nationwide retrospective study, data from 98 genetically confirmed T188K‐gCJD patients ...
Chun‐Jie Li   +11 more
wiley   +1 more source

Investigation of transition between spark ignition and controlled auto-ignition combustion in a V6 direct-injection engine with cam profile switching

open access: yes, 2008
Controlled auto-ignition (CAI) combustion, also known as Homogeneous Charge Compression Ignition (HCCI) can be achieved by trapping residuals with early exhaust valve closure in a direct fuel injection in-cylinder four-stroke gasoline engines (through ...
Zhao, H, Kalian, N, Qiao, J
core   +1 more source

A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi   +17 more
wiley   +1 more source

Four Unrecorded Aspergillus Species from the Rhizosphere Soil in South Korea

open access: yesMycobiology, 2021
The genus Aspergillus is commonly isolated from various marine and terrestrial environments; however, only a few species have been studied in rhizosphere soil.
Jun Won Lee   +4 more
doaj   +1 more source

Fresamento por regiões como uma alternativa na usinagem de cavidades para moldes de injeção através de sistema CAD/CAM [PDF]

open access: yes, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Mecânica.Em função da crescente complexidade geométrica das cavidades em moldes de injeção é cada vez maior o emprego de sistemas
Silva Filho, Mariano Saraiva da
core  

Arkeoloji ve arkeometrinin çağdaş cam sanatına yansımaları [PDF]

open access: yes, 2021
Arkeoloji bilimi, geçmişte insan hayatının bir parçası olan malzemelerin ortaya çıkışı, üretim yerleri, üretim yöntemleri ve kullanım alanları ve daha birçok bilinmeze ışık tutmaktadır. Arkeolojik çalışmaların başlangıcı çok eski zamanlara dayalı olsa da

core  

Triangular Index Ratio as an Alternative Method to the Alpha Angle for Defining the Presence of Cam Morphology: A Prospective Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective Cam morphology, which is a significant risk factor for hip osteoarthritis, is commonly quantified by the alpha angle (AA). This study aims to explore the potential of the triangular index ratio (TIR) to quantify cam morphology on anteroposterior radiographs by assessing the association between TIR‐defined cam morphology and the development of
Jinchi Tang   +7 more
wiley   +1 more source

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