Results 41 to 50 of about 15,851,959 (333)

The periprocedural myocardial infarction and probability of the developing of the contrast-induced acute kidneys injury in clinical practice. Case report

open access: yesТерапевтический архив, 2021
Nowadays, taking into account the number of elderly patients with sеveral associated diseases requiring percutaneous transluminal balloon coronary angioplasty (PTCA), the risk of the development of unwanted complications is also growing.
Olga A. Dmitrieva   +5 more
doaj   +1 more source

The functional role of contrast adaptation [PDF]

open access: yes, 1988
Prolonged inspection of high contrast sinewave gratings increases the contrast required to detect gratings having a similar spatial frequency and orientation. The functional role of such adaptation has, however, in the past, eluded disclosure.
Greenlee, Mark W., Heitger, F.
core   +1 more source

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

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

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

Influence of contrast media dose and osmolality on the diagnostic performance of contrast fractional flow reserve [PDF]

open access: yes, 2017
Background—Contrast fractional flow reserve (cFFR) is a method for assessing functional significance of coronary stenoses, which is more accurate than resting indices and does not require adenosine.
Berry, Colin   +10 more
core   +1 more source

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

Iron-based ferritin nanocore as a contrast agent [PDF]

open access: yes, 2010
Self-assembling protein cages have been exploited as templates for nanoparticle synthesis. The ferritin molecule, a protein cage present in most living systems, stores excess soluble ferrous iron in the form of an insoluble ferric complex within its ...
Johnson, Eric   +4 more
core   +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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