Frontiers in Physiology, 2013 The Wnt/β-catenin pathway is involved in the regulation of a multitude of physiological processes by controlling the differential expression of target genes.
Uwe eBenary +3 more
doaj +1 more source
Cellular interpretation of the long-range gradient of Four-jointed activity in the Drosophila wing
eLife, 2015 To understand how long-range patterning gradients are interpreted at the cellular level, we investigate how a gradient of expression of the Four-jointed kinase specifies planar polarised distributions of the cadherins Fat and Dachsous in the Drosophila ...
Rosalind Hale +4 more
doaj +1 more source
On gradient field theories: gradient magnetostatics and gradient elasticity [PDF]
Philosophical Magazine, 2014 40 pages, to appear in: Philosophical ...
openaire +2 more sources
pH and Redox Induced Color Changes in Protein Crystals Suffused with Dyes
Crystals, 2019 Protein crystals, otherwise usually colorless, can be stained a variety of hues by saturating them with dyes, by diffusion from the mother liquor or co-crystallization.
Alexander McPherson
doaj +1 more source
Plant Competition Across Topographic Gradients in Neotropical Cerrado Savannas: An Isotopic Approach
, 2023 The Cerrado is the second most extensive biome in South America, encompassing a series of plant physiognomies, which normally form gradients of tree cover in the landscape from grasslands with no or little tree cover, through savannas of variable tree ...
Rossatto, Davi R. [UNESP] +1 more
core +1 more source
The resilience of the logarithmic law to pressure gradients: evidence from direct numerical simulation [PDF]
, 2009 Wall-bounded turbulence in pressure gradients is studied using direct numerical simulation (DNS) of a Couette–Poiseuille flow. The motivation is to include adverse pressure gradients, to complement the favourable ones present in the well-studied ...
Johnstone, Roderick +2 more
core +1 more source
Quantitative Analysis of Cell Motility and Chemotaxis in Dictyostelium discoideum by Using an Image Processing System and a Novel Chemotaxis Chamber Providing Stationary Chemical Gradients [PDF]
, 1989 An image processing system was programmed to automatically track and digitize the movement of amebae under phase-contrast microscopy. The amebae moved in a novel chemotaxis chamber designed to provide stable linear attractant gradients in a thin agarose ...
G Gerisch +5 more
core +1 more source
Shape from Gradients. A psychophysical and computational study of the role complex illumination gradients, such as shading and mutual illumination, play in three-dimensional shape perception. [PDF]
, 2013 The human visual system gathers information about three-dimensional object shape from a wide range of sources. How effectively we can use these sources, and how they are combined to form a consistent and accurate percept of the 3D world is the focus of ...
Harding, Glen
core +4 more sources
Gradient Regularized Natural Gradients
CoRRGradient regularization (GR) has been shown to improve the generalizability of trained models. While Natural Gradient Descent has been shown to accelerate optimization in the initial phase of training, little attention has been paid to how the training dynamics of second-order optimizers can benefit from GR.
Dash, Satya Prakash; id_orcid 0009-0000-4822-823X +4 more
openaire +4 more sources
Melanoma cells break down LPA to establish local gradients that drive chemotactic dispersal. [PDF]
, 2014 The high mortality of melanoma is caused by rapid spread of cancer cells, which occurs unusually early in tumour evolution. Unlike most solid tumours, thickness rather than cytological markers or differentiation is the best guide to metastatic potential.
Gabriela Kalna (192504) +76 more
core +1 more source