Results 71 to 80 of about 50,981 (256)

The microbiome in human skin aging

open access: yesFEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana   +3 more
wiley   +1 more source

Neuronal population mechanisms of lightness perception

open access: yes, 2018
The way that humans and animals perceive the lightness of an object depends on its physical luminance as well as its surrounding context. While neuronal responses throughout the visual pathway are modulated by context, the relationship between neuronal ...
David H. Brainard   +2 more
core   +1 more source

Lightness constancy: ratio invariance and luminance profile [PDF]

open access: yes, 2009
The term simultaneous lightness constancy describes the capacity of the visual system to perceive equal reflecting surfaces as having the same lightness despite lying in different illumination fields.
Galmonde, Alessandro   +6 more
core   +1 more source

On Lightness

open access: yes, 1973
The intensity at a point in an image is the product of the reflectance at the corresponding object point and the intensity of illumination at that point. We are able to perceive lightness, a quantity closely correlated with reflectance.
Horn, Berthold K.P.
core   +1 more source

Meaning and metrics of the “tone value” in printing technology and standards

open access: yesОмский научный вестник
Since the early 1990s, the ISO Technical Committee for Graphic Technology has developed and updated several dozen industry standards. Almost every one of them begins with a list of definitions for terms specific to the document.To date, the series of ...
Yu. V. Kuznetsov   +2 more
doaj   +1 more source

The Effect of the Slaughter Weight on Carcass Composition, Body Measurements and Veal Quality of Holstein Calves

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2019
The aim of this study was to investigate the growth, fattening characteristics and veal quality of MLT from Holstein calves (total number of 40 heads) produced from 4 slaughter weight groups (130, 150, 180 and 210 kg).
Klára Vavrišínová   +4 more
doaj   +1 more source

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

open access: yesFEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee   +2 more
wiley   +1 more source

Morphological Strategies in Ant Communities along Elevational Gradients in Three Mountain Ranges

open access: yesDiversity
Species traits often vary in a coordinated manner, making up an ecological strategy comprised of suites of interrelated traits. Environmental gradients, such as those along elevational gradients, provide an ideal venue in which to examine variation in ...
Heloise Gibb   +6 more
doaj   +1 more source

Calculating Retinal Contrast from Scene Content: A Program

open access: yesFrontiers in Psychology, 2018
This paper describes a computer program for calculating the contrast image on the human retina from an array of scene luminances. We used achromatic transparency targets and measured test target's luminances with meters.
John J. McCann, Vassilios Vonikakis
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

open access: yesFEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

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