Results 1 to 10 of about 14,772 (107)

Tortuous extracranial arteries contribute to white Matter hyperintensities in aging brains [PDF]

open access: yesFrontiers in Aging Neuroscience
IntroductionWhite matter hyperintensity (WMH) is a hallmark imaging biomarker of cerebral small vessel disease and are strongly associated with vascular cognitive impairment in the elderly.
Zhe Sun   +10 more
doaj   +2 more sources

Four Severity Levels for Grading the Tortuosity of a Retinal Fundus Image

open access: yesJournal of Imaging, 2022
Hypertensive retinopathy severity classification is proportionally related to tortuosity severity grading. No tortuosity severity scale enables a computer-aided system to classify the tortuosity severity of a retinal image. This work aimed to introduce a
Sufian Abdul Qader Badawi   +5 more
doaj   +1 more source

Arteriovenous Length Ratio: A Novel Method for Evaluating Retinal Vasculature Morphology and Its Diagnostic Potential in Eye-Related Diseases

open access: yesJournal of Imaging, 2023
Retinal imaging is a non-invasive technique used to scan the back of the eye, enabling the extraction of potential biomarkers like the artery and vein ratio (AVR).
Sufian A. Badawi   +9 more
doaj   +1 more source

A Comparison of the Tortuosity Phenomenon in Retinal Arteries and Veins Using Digital Image Processing and Statistical Methods

open access: yesMathematics, 2023
The tortuosity of retinal blood vessels is an important phenomenon, and it can act as a biomarker in the diagnosis of several eye diseases. The study of abnormalities in the tortuosity of retinal arteries and veins provides ophthalmologists with ...
Sufian A. Badawi   +6 more
doaj   +1 more source

Enhancing Vessel Segment Extraction in Retinal Fundus Images Using Retinal Image Analysis and Six Sigma Process Capability Index

open access: yesMathematics, 2023
Retinal vessel segmentation, skeletonization, and the generation of vessel segments are considered significant steps in any automated system for measuring the vessel biomarkers of several disease diagnoses.
Sufian A. Badawi   +6 more
doaj   +1 more source

Increased visceral arterial tortuosity in Marfan syndrome

open access: yesOrphanet Journal of Rare Diseases, 2020
Background Clinical evidence suggests that the currently recommended approach to estimate the risk of aortic dissection in Marfan syndrome (MFS) is not reliable enough.
Bence Ágg   +11 more
doaj   +1 more source

Attractors, Universality and Inflation [PDF]

open access: yes, 2012
Studies of the initial conditions for inflation have conflicting predictions from exponential suppression to inevitability. At the level of phase space, this conflict arises from the competing intuitions of CPT invariance and thermodynamics.
Downes, Sean   +2 more
core   +3 more sources

Fine-grained human evaluation of neural versus phrase-based machine translation [PDF]

open access: yes, 2017
We compare three approaches to statistical machine translation (pure phrase-based, factored phrase-based and neural) by performing a fine-grained manual evaluation via error annotation of the systems' outputs.
Klubička, Filip   +2 more
core   +3 more sources

From metaphysical principles to dynamical laws [PDF]

open access: yes, 2022
My thesis in this paper is: the modern concept of laws of motion—qua dynamical laws—emerges in 18th-century mechanics. The driving factor for it was the need to extend mechanics beyond the centroid theories of the late-1600s.
Stan, Marius
core  

Patterns and rates of viral evolution in HIV-1 subtype B infected females and males. [PDF]

open access: yes, 2017
Biological sex differences affect the course of HIV infection, with untreated women having lower viral loads compared to their male counterparts but, for a given viral load, women have a higher rate of progression to AIDS.
Anastos, Kathryn   +16 more
core   +3 more sources

Home - About - Disclaimer - Privacy