Results 31 to 40 of about 12,777,091 (283)

Selectives (“topic markers”) on subordinate clauses

open access: yesLinguistics, 2022
This typological study based on data from a parallel text corpus is a two-step investigation of selectives (“topic markers”). First, a set of selectives in 81 languages from all continents is compiled on the basis of their occurrence with emphatic ...
Wälchli Bernhard
doaj   +1 more source

Visual function tests for glaucoma practice - What is relevant?

open access: yesIndian Journal of Ophthalmology, 2022
Glaucoma represents one of the most important ocular diseases causing irreversible ganglion cell death. It is one of the most common causes of visual impairment and morbidity in the elderly population.
Aparna Rao   +3 more
doaj   +1 more source

Gadolinium chelates as NMR contrast agents [PDF]

open access: yes, 1987
" Chelates of gadolinium with 1,4,7-triazacyclononane-N,N',N""-triacetate; 1,4,7,10-tetrazacyclododecane-N,N',N'""tetraacetate; and 1,5,9-triazacyclododecane-N,N',N""-triacetate are useful as NMR contrast agents.
Sherry, A. Dean
core   +1 more source

Training People to Think in Opposites Facilitates the Falsification Process in Wason’s Rule Discovery Task

open access: yesJournal of Intelligence, 2023
With reference to Wason’s 2-4-6 rule discovery task, this study investigated the effects of a simple training session that prompted participants to “think in opposites”.
Erika Branchini   +2 more
doaj   +1 more source

Binocular contrast discrimination needs monocular multiplicative noise. [PDF]

open access: yes, 2016
The effects of signal and noise on contrast discrimination are difficult to separate because of a singularity in the signal-detection-theory model of two-alternative forced-choice contrast discrimination (Katkov, Tsodyks, & Sagi, 2006).
Ding, Jian, LEVI, Dennis M.
core   +2 more sources

Deep Contrast Learning for Salient Object Detection [PDF]

open access: yes, 2016
Salient object detection has recently witnessed substantial progress due to powerful features extracted using deep convolutional neural networks (CNNs). However, existing CNN-based methods operate at the patch level instead of the pixel level.
Li, Guanbin, Yu, Yizhou
core   +2 more sources

Modeling Heritage Language Phonetics and Phonology: Toward an Integrated Multilingual Sound System

open access: yesLanguages, 2021
Although heritage language phonology is often argued to be fairly stable, heritage language speakers often sound noticeably different from both monolinguals and second-language learners.
David Natvig
doaj   +1 more source

Simultaneous multislice acquisition with multi-contrast segmented EPI for separation of signal contributions in dynamic contrast-enhanced imaging [PDF]

open access: yes, 2018
We present a method to efficiently separate signal in magnetic resonance imaging (MRI) into a base signal S0, representing the mainly T1-weighted component without T2*-relaxation, and its T2*-weighted counterpart by the rapid acquisition of multiple ...
Eickel, Klaus   +5 more
core   +2 more sources

What's Contrasting Contrast?

open access: yesJournal of the American College of Cardiology, 2012
I read with interest the recently published paper by Greupner et al. ([1][1]), and would like to comment on the surprising absence of contrast echocardiography among the tested methods for volume and ejection fraction measurement.
openaire   +2 more sources

Automatic view classification of contrast and non-contrast echocardiography

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundContrast and non-contrast echocardiography are crucial for cardiovascular diagnoses and treatments. Correct view classification is a foundational step for the analysis of cardiac structure and function. View classification from all sequences of
Ye Zhu   +35 more
doaj   +1 more source

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