Results 51 to 60 of about 15,851,959 (333)
Chemistry of MRI Contrast Agents: Current Challenges and New Frontiers.
Chemical Reviews, 2018 Tens of millions of contrast-enhanced magnetic resonance imaging (MRI) exams are performed annually around the world. The contrast agents, which improve diagnostic accuracy, are almost exclusively small, hydrophilic gadolinium(III) based chelates.
Jessica Wahsner +3 more
semanticscholar +1 more source
Differential Phase-contrast Interior Tomography
, 2011 Differential phase contrast interior tomography allows for reconstruction of a refractive index distribution over a region of interest (ROI) for visualization and analysis of internal structures inside a large biological specimen. In this imaging mode, x-
Cong W +11 more
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Experiment and Simulation of a Selective Subwavelength Filter with a Low Index Contrast
Nanomaterials, 2019 Subwavelength gratings have been of great interest recently due to their ability to eliminate multiple orders. However, high index contrast ( Δ n ∼ 3 ) is typically achieved using metals or high-index dielectrics surrounded by vacuum in ...
Tao Li +8 more
doaj +1 more source
Extending the notion of contrast and the scope of felicity
Borealis: An International Journal of Hispanic Linguistics, 2023 There is debate among linguists as to whether overt subject pronouns (SPs) are pragmatically obligatory in contrastive contexts. While many authors would argue that overt SPs are necessary to maintain a pragmatically felicitous utterance (e.g.
Philip Limerick
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Multi-societal expert consensus statement on the safe administration of ultrasound contrast agents
Echo Research and PracticeContrast enhanced ultrasound (CEUS) offers a safe, reliable imaging option to establish a clinical diagnosis across a variety of multidisciplinary settings.
Jordan B. Strom +36 more
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A computational relationship between thalamic sensory neural responses and contrast perception
Frontiers in Neural Circuits, 2015 Uncovering the relationship between sensory neural responses and perceptual decisions remains a fundamental problem in neuroscience. Decades of experimental and modeling work in the sensory cortex have demonstrated that a perceptual decision pool is ...
Yaoguang eJiang +4 more
doaj +1 more source
Frontiers in Human Neuroscience, 2020 The magnocellular system has been implicated in the rapid processing of facial emotions, such as fear. Of the various anatomical possibilities, the retino-colliculo-pulvinar route to the amygdala is currently favored. However, it is not clear whether and
Eveline Mu, David Crewther
doaj +1 more source
Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis +9 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background While Wilms tumor (WT) typically has a favorable prognosis, relapsed cases—especially those with high‐risk histology—remain therapeutically challenging after intensive frontline therapy. The combination of vincristine and irinotecan has demonstrated activity in pediatric solid tumors, and pazopanib, a multi‐targeted tyrosine kinase ...
Maria Debora De Pasquale +6 more
wiley +1 more source
Rectangular-Mask Coronagraphs for High-Contrast Imaging
, 2004 We present yet another new family of masks for high-contrast imaging as required for the to-be-built terrestrial planet finder space telescope. The ``best'' design involves a square entrance pupil having a 4-vane spider, a square image-plane mask ...
Kasdin, N. Jeremy +2 more
core +1 more source