Results 11 to 20 of about 1,136,956 (309)

Direct imaging and astrometric detection of a gas giant planet orbiting an accelerating star

open access: yes, 2023
Direct imaging of gas giant exoplanets provides information on their atmospheres and the architectures of planetary systems. However, few planets have been detected in blind surveys with direct imaging.
Murphy, Simon J.
core   +1 more source

Direct imaging of APP proteolysis in living cells [PDF]

open access: yesPeerJ, 2017
Alzheimer’s disease is a multifactorial disorder caused by the interaction of genetic, epigenetic and environmental factors. The formation of cytotoxic oligomers consisting of Aβ peptide is widely accepted as being one of the main key events triggering ...
Niccoló Parenti   +6 more
doaj   +2 more sources

A Microwave Polarimeter Demonstrator for Astronomy with Near-Infra-Red Up-Conversion for Optical Correlation and Detection

open access: yesSensors, 2019
This paper presents a 10 to 20 GHz bandwidth microwave polarimeter demonstrator, based on the implementation of a near-infra-red frequency up-conversion stage that allows both the optical correlation, when operating as a synthesized-image interferometer,
Francisco J. Casas   +6 more
doaj   +1 more source

Direct imaging of exoplanets [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
Most of the exoplanets known today have been discovered by indirect techniques, based on the study of the host star radial velocity or photometric temporal variations. These detections allowed the study of the planet populations in the first 5–8 AU from the central stars and have provided precious information on the way planets form and evolve at such ...
openaire   +2 more sources

Cleveland Clinic Imaging Institute’s “Commitment to Respect” and Impact on Quality of Care and Patient Satisfaction

open access: yesJournal of Patient Experience, 2017
Cleveland Clinic’s Imaging Institute implemented a “Commitment to Respect” initiative and survey process in March 2013 with the goal of improving communication and teamwork among employees and, in turn, improving patient satisfaction.
Carl Creagh MS (OD)   +5 more
doaj   +1 more source

Vessel territory mapping after cerebral revascularization surgery using selective angiographic flat detector perfusion imaging [PDF]

open access: yesJournal of Integrative Neuroscience, 2021
The technical feasibility and diagnostic potential of angiographic flat-detector perfusion imaging technique, combining digital subtraction angiography with a flat-detector computed tomography steady-state perfusion imaging, was explored in patients ...
Thijs van der Zijden   +4 more
doaj   +1 more source

Stereotactic Injection of DTI-015 into Recurrent Malignant Gliomas: Phase I/II Trial

open access: yesNeoplasia: An International Journal for Oncology Research, 2003
DTI-015 (BCNU in 100% ethanol) utilizes solvent facilitated perfusion for the intratumoral treatment of gliomas. The ethanol solvent vehicle facilitates a rapid and thorough saturation of the tumor with the dissolved anticancer agent BCNU. We conducted a
Samuel J. Hassenbusch   +4 more
doaj   +1 more source

PET imaging of neurotransmission using direct parametric reconstruction

open access: yesNeuroImage, 2020
Receptor ligand-based dynamic Positron Emission Tomography (PET) permits the measurement of neurotransmitter release in the human brain. For single-scan paradigms, the conventional method of estimating changes in neurotransmitter levels relies on fitting
Yoann Petibon   +7 more
doaj   +1 more source

Direct imaging of intraflagellar-transport turnarounds reveals that motors detach, diffuse, and reattach to opposite-direction trains. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Intraflagellar transport (IFT), a bidirectional intracellular transport mechanism in cilia, relies on the cooperation of kinesin-2 and IFTdynein motors.
Zhang Z   +4 more
europepmc   +2 more sources

Direct Imaging of Functional Networks [PDF]

open access: yesBrain Connectivity, 2014
In blood-oxygenation-level-dependent functional magnetic resonance imaging (fMRI), current methods typically acquire ∼500,000 imaging voxels at each time point, and then use computer algorithms to reduce this data to the coefficients of a few hundred parcels or networks.
openaire   +4 more sources

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