Results 21 to 30 of about 14,342,235 (381)
For sensory systems of the brain, the dynamics of an animal’s own sampling behavior has a direct consequence on ensuing computations. This is particularly the case for mammalian olfaction, where a rhythmic flow of air over the nasal epithelium entrains ...
Tobias Ackels +6 more
doaj +1 more source
Retinal Imaging and Image Analysis [PDF]
Many important eye diseases as well as systemic diseases manifest themselves in the retina. While a number of other anatomical structures contribute to the process of vision, this review focuses on retinal imaging and image analysis. Following a brief overview of the most prevalent causes of blindness in the industrialized world that includes age ...
Abramoff, M.D. +2 more
openaire +3 more sources
Novel muon imaging techniques [PDF]
Owing to the high penetrating power of high-energy cosmic ray muons, muon imaging techniques can be used to image large bulky objects, especially objects with heavy shielding.
Al Jebali, Ramsey +8 more
core +1 more source
Microbes live in complex microniches within host tissues, but how symbiotic partners communicate to create such niches during development remains largely unexplored.
Tara Essock-Burns +4 more
doaj +1 more source
Normalized ghost imaging [PDF]
We present an experimental comparison between different iterative ghost imaging algorithms. Our experimental setup utilizes a spatial light modulator for generating known random light fields to illuminate a partially-transmissive object.
Baoqing Sun +15 more
core +3 more sources
Emerging imaging techniques in spondyloarthritis dual-energy computed tomography and new MRI sequences [PDF]
Imaging of the sacroiliac joint plays a critical role in the classification of patients with axial spondyloarthritis. New imaging techniques are emerging, changing the way clinicians look at the sacroiliac joint.
Bird, Paul, Chen, Min, Jans, Lennart
core +1 more source
This poster describes the image comparison technique developed at the National Library of New Zealand. This process has been developed to help demonstrate / document any changes to image content as a result of a preservation or conservation treatment.
openaire +3 more sources
Scratching the Surface: Bacterial Cell Envelopes at the Nanoscale
The bacterial cell envelope is essential for viability, the environmental gatekeeper and first line of defense against external stresses. For most bacteria, the envelope biosynthesis is also the site of action of some of the most important groups of ...
Albertus Viljoen +4 more
doaj +1 more source
Background Complex aortic plaque (CAP) is a potential embolic source in patients with cryptogenic stroke (CS). We review CAP imaging criteria for transesophageal echocardiogram (TEE), computed tomography angiography (CTA), and magnetic resonance imaging ...
Yu Sakai +12 more
doaj +1 more source
First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole [PDF]
We present the first Event Horizon Telescope (EHT) images of M87, using observations from April 2017 at 1.3 mm wavelength. These images show a prominent ring with a diameter of ~40 μas, consistent with the size and shape of the lensed photon orbit ...
K. Akiyama +214 more
semanticscholar +1 more source

