Results 31 to 40 of about 207,558 (286)

High speed two-photon imaging of calcium dynamics in dendritic spines: consequences for spine calcium kinetics and buffer capacity. [PDF]

open access: yesPLoS ONE, 2007
Rapid calcium concentration changes in postsynaptic structures are crucial for synaptic plasticity. Thus far, the determinants of postsynaptic calcium dynamics have been studied predominantly based on the decay kinetics of calcium transients.
L Niels Cornelisse   +4 more
doaj   +1 more source

Deep phenotyping of coarse root architecture in R. pseudoacacia reveals that tree root system plasticity is confined within its architectural model. [PDF]

open access: yesPLoS ONE, 2013
This study aims at assessing the influence of slope angle and multi-directional flexing and their interaction on the root architecture of Robinia pseudoacacia seedlings, with a particular focus on architectural model and trait plasticity.
Frédéric Danjon   +2 more
doaj   +1 more source

3D numerical modelling of twisting cracks under bending and torsion of skew notched beams [PDF]

open access: yes, 2017
The testing of mode III and mixed mode failure is every so often encountered in the dedicated literature of mechanical characterization of brittle and quasi-brittle materials.
Benedetti, Lorenzo   +2 more
core   +5 more sources

Three-dimensional multi-mechanism bounding surface model for sands

open access: yesYantu gongcheng xuebao, 2017
Within the multi-mechanism framework, a novel constitutive model for sands is proposed based on the critical state and bounding surface plasticity theories. The model assumes that the macroscopic deformation behavior of sands can be obtained by summation
FANG Huo-lang 1, 2, SHEN Yang 1, ZHENG Hao 1, ZENG Ze-bin 3
doaj   +1 more source

Uniqueness of human running coordination: The integration of modern and ancient evolutionary innovations [PDF]

open access: yes, 2016
Running is a pervasive activity across human cultures and a cornerstone of contemporary health, fitness and sporting activities. Yet for the overwhelming predominance of human existence running was an essential prerequisite for survival. A means to hunt,
Collins, D.J, Kiely, J.,
core   +2 more sources

ON ACCURACIES OF UNIAXIAL CYCLIC PLASTICITY BEHAVIOURS PREDICTED BY MULTI-SURFACE MODEL

open access: yesDoboku Gakkai Ronbunshu, 1989
A stress-strain model which was highly accurate and distinct in nature was already subjected to complex repetitive loads. The model is based on one of the multi-surface plasticity theories. Material parameters introduced in the model are three functions expressing fundamental sizes of multi-surfaces and weighting functions to describe the sizes at ...
Masaru MINAGAWA   +2 more
openaire   +2 more sources

Influence of gaseous hydrogen on plastic strain in vicinity of fatigue crack tip in Armco pure iron

open access: yesMATEC Web of Conferences, 2018
A multi-scale characterisation of the crack tip plasticity has been investigated in a fatigue crack propagation under gaseous hydrogen at gas pressure of 35 MPa in a commercially pure iron, Armco iron. The dislocation structure beneath a fracture surface
Shinko Tomoki   +3 more
doaj   +1 more source

Gross karyotypic and phenotypic alterations among different progenies of the Candida glabrata CBS138/ATCC2001 reference strain.

open access: yesPLoS ONE, 2012
Genomic plasticity is a mechanism for adaptation to environmental cues such as host responses and antifungal drug pressure in many fungi including the human pathogenic yeast Candida glabrata.
Oliver Bader   +8 more
doaj   +1 more source

Rheological Model for Wood [PDF]

open access: yes, 2014
Wood as the most important natural and renewable building material plays an important role in the construction sector. Nevertheless, its hygroscopic character basically affects all related mechanical properties leading to degradation of material ...
Hassani, Mohammad Masoud   +3 more
core  

Galectin-12 in Cellular Differentiation, Apoptosis and Polarization. [PDF]

open access: yes, 2018
Galectin-12 is a member of a family of mammalian lectins characterized by their affinity for β-galactosides and consensus amino acid sequences. The protein structure consists of a single polypeptide chain containing two carbohydrate-recognition domains ...
Liu, Fu-Tong, Wan, Lei, Yang, Ri-Yao
core   +2 more sources

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