Results 61 to 70 of about 3,372,624 (300)

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Contrast Limited Adaptive Local Histogram Equalization Method for Poor Contrast Image Enhancement

open access: yesIEEE Access
Contrast limited adaptive histogram equalization (CLAHE) is a widely utilised method for image enhancement due to its speed and simplicity. However, this method faces two major limitations, namely, the requirement of manual parameter setting (i.e.
Ibrahim Majid Mohammed   +1 more
doaj   +1 more source

A Critical Analysis on Perceptual Contrast and Its Use in Visual Information Analysis and Processing

open access: yesIEEE Access, 2020
Contrast in visible images is one of the most relevant characteristics of visual signals. Since the pioneering works performed in vision psychology and optics, different definitions have been proposed in the literature.
Azeddine Beghdadi   +4 more
doaj   +1 more source

Renal perfusion in scleroderma patients assessed by microbubble-based contrast-enhanced ultrasound [PDF]

open access: yes, 2012
OBJECTIVES: Renal damage is common in scleroderma. It can occur acutely or chronically. Renal reserve might already be impaired before it can be detected by laboratory findings.
Himsel, Andrea   +12 more
core   +1 more source

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

fEEG contrast enhancement: power law transformation vs intuitionistic fuzzy set

open access: yes, 2020
This work focused on contrast enhancement of Flat Electroencephalography (fEEG) image by using Power Law Transformation (PLT) and Intuitionistic Fuzzy Set (IFS). PLT is a classical method whereas the IFS is an advanced fuzzy approach.
Ahmad, Tahir   +2 more
core  

An Efficient Contrast Enhancement Method for Remote Sensing Images

open access: yes, 2017
Remote sensing images often suffer low contrast. Although many contrast enhancement methods have been proposed in recent literature, the efficiency and robustness of remote sensing image contrast enhancement is still a challenge.
Chenghu Zhou   +7 more
core   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Contrast Enhancement in 2D Nanomaterial SEM Images

open access: yesEngineering Proceedings
Owing to their large size and flexibility, 2D nanostructures (e.g., graphene, graphene oxide, single-layer molybdenum disulfide, etc.) are technologically exploited in a supported form. Glass, silicon, and polymers are typical substrates.
Angela Longo   +3 more
doaj   +1 more source

Joint Noise Reduction for Contrast Enhancement in Stokes Polarimetric Imaging

open access: yesIEEE Photonics Journal, 2019
Contrast optimization is a key issue in polarimetric imaging for the purpose of target detection. In practice, the noise could induce the intensity fluctuation of the image and thus lead to the decrease of the image contrast.
Hui Wang   +9 more
doaj   +1 more source

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