Results 21 to 30 of about 14,342,235 (381)

Respiration-Locking of Olfactory Receptor and Projection Neurons in the Mouse Olfactory Bulb and Its Modulation by Brain State

open access: yesFrontiers in Cellular Neuroscience, 2020
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]

open access: yesIEEE Reviews in Biomedical Engineering, 2010
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]

open access: yes, 2018
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

Interactions of Symbiotic Partners Drive the Development of a Complex Biogeography in the Squid-Vibrio Symbiosis

open access: yesmBio, 2020
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]

open access: yes, 2012
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]

open access: yes, 2020
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

IS THIS IMAGE THAT IMAGE?

open access: yes, 2022
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

open access: yesmBio, 2020
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

Imaging Biomarkers and Prevalence of Complex Aortic Plaque in Cryptogenic Stroke: A Systematic Review

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
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]

open access: yesAstrophysical Journal, 2019
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

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