Results 91 to 100 of about 152,389 (315)
On the tangent cones to plurisubharmonic currents [PDF]
arXiv, 2011 In this paper, we study the existence of the tangent cone to a positive plurisubharmonic or plurisuperharmonic current with a suitable condition. Some Estimates of the growth of the Lelong functions associated to the current and to its $dd^c$ are given to ensure the existence of the blow-up of this current.
arxiv
Neuron, 1995 This study examines the mechanisms of spontaneous and induced [Ca2+]i spiking in nerve growth cones and the effect of spikes on growth cone migration. Over a 10-20 min observation period, 29% of DRG growth cones undergo spontaneous and transient elevations in physiological extracellular Ca2+ ((Ca2+)o; 2 mM), whereas 67% of growth cones exposed to 20 mM
Paul C. Letourneau +2 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.Cellulosic emulsions as multi‐cargo agriculture formulations. Pickering emulsions stabilized by cellulose acetate particles provide an effective platform for delivering a range of agricultural cargoes, including plant growth‐promoting bacteria and agrochemicals.
Mariam Sohail +10 more
wiley +1 more source
On rays of minimal growth for elliptic cone operators [PDF]
arXiv, 2005 We present an overview of some of our recent results on the existence of rays of minimal growth for elliptic cone operators and two new results concerning the necessity of certain conditions for the existence of such rays.
arxiv
New Light on Growth Cone Navigation [PDF]
Developmental Cell, 2015 Growth cones on neuronal process navigate over long distances to their targets in the developing nervous system. New work by Menon et al., 2015 in the current issue of Developmental Cell reveals that reversible ubiquitination of the actin filament polymerase called VASP is part of the guidance system.
openaire +3 more sources
Advanced Functional Materials, EarlyView.The seed pod valves of Australian Banksia attenuata plants are not simply bi‐layers which bend when dry. These experiments and models reveal complex mechanics, which allow seed release only after several steps of seed pod opening. Stiffness gradients prevent delamination of the valves during loading, and a shape‐memory function protects the seeds ...
Friedrich Reppe +7 more
wiley +1 more source
Role of the growth cone in neuronal differentiation
Molecular Neurobiology, 1989 Nerve growth cones are motile, exploring organelles at the tip of a growing neurite. The growth cone is a highly specialized structure, equipped with a complex machinery for reversible membrane expansion and rapid cytoskeletal reorganization, a machinery required for growth cone motility and neurite elongation.
Gispen, W.H. +3 more
openaire +4 more sources
Advanced Functional Materials, EarlyView.This work investigates the Nernst effect in the Kagome magnet ErMn6Sn6 which exhibits both topological and anomalous Nernst effects with the anomalous Nernst coefficient reaching 1.71 µV K⁻¹ at 300 K. This value surpasses that of most canted antiferromagnetic materials, making ErMn6Sn6 a promising candidate for advancing thermoelectric devices based on
Olajumoke Oluwatobiloba Emmanuel +2 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Glioblastoma multiforme is the most devastating and incurable brain tumor. To better study this disease, a 3D model is developed using a hyaluronic acid‐based hydrogel combined with a multicellular approach. This model recapitulates in vivo brain stiffness, cell‐extracellular matrix and cell‐cell interactions and the tumor's hijacking function with the
Mateo S. Andrade Mier +26 more
wiley +1 more source
Ephrin-A/EphA specific co-adaptation as a novel mechanism in topographic axon guidance
eLife, 2017 Genetic hardwiring during brain development provides computational architectures for innate neuronal processing. Thus, the paradigmatic chick retinotectal projection, due to its neighborhood preserving, topographic organization, establishes millions of ...
Felix Fiederling +5 more
doaj +1 more source