نتایج جستجو برای: abrupt expansion

تعداد نتایج: 153580  

2013
Nezaket Turkel Virender K. Sahota Jessica E. Bolden Karen R. Goulding Karen Doggett Lee F. Willoughby Enrique Blanco Enrique Martin-Blanco Montserrat Corominas Jason Ellul Toshiro Aigaki Helena E. Richardson Anthony M. Brumby

The capacity of tumour cells to maintain continual overgrowth potential has been linked to the commandeering of normal self-renewal pathways. Using an epithelial cancer model in Drosophila melanogaster, we carried out an overexpression screen for oncogenes capable of cooperating with the loss of the epithelial apico-basal cell polarity regulator, scribbled (scrib), and identified the cell fate ...

Journal: :Journal of neurophysiology 2013
Jean-Jacques Orban de Xivry Mohammad Ali Ahmadi-Pajouh Michelle D Harran Yousef Salimpour Reza Shadmehr

Both abrupt and gradually imposed perturbations produce adaptive changes in motor output, but the neural basis of adaptation may be distinct. Here, we measured the state of the primary motor cortex (M1) and the corticospinal network during adaptation by measuring motor-evoked potentials (MEPs) before reach onset using transcranial magnetic stimulation of M1. Subjects reached in a force field in...

2017
J. M. Pedrosa

In this work, ultraviolet-visible reflection spectroscopy is proposed as a technique that, in combination with classical surface pressure–area isotherms, allows to study in situ the adsorption of DNA to octadecylamine monolayers. The presence of the polynucleotide molecules at the interface, typically demonstrated by an expansion and a change in the profile of theODA isotherms, has been confirm...

Journal: :Plant physiology 2003
Corine M van der Weele Hai S Jiang Krishnan K Palaniappan Viktor B Ivanov Kannapan Palaniappan Tobias I Baskin

A requirement for understanding morphogenesis is being able to quantify expansion at the cellular scale. Here, we present new software (RootflowRT) for measuring the expansion profile of a growing root at high spatial and temporal resolution. The software implements an image processing algorithm using a novel combination of optical flow methods for deformable motion. The algorithm operates on a...

Journal: :Cognition 2003
Chris Kelland Friesen Alan Kingstone

The present study investigated whether the direction of visual signals is influenced independently by two automatic visual orienting phenomena: orienting to a gazed-at location and inhibition of return (IOR) to the location of an abrupt onset. A schematic face served as both a nonpredictive gaze direction cue and an abrupt onset cue. Results indicated that target detection was facilitated at th...

Journal: :Journal of experimental psychology. Human perception and performance 1999
J Theeuwes A F Kramer S Hahn D E Irwin G J Zelinsky

Previous research has shown that when searching for a color singleton, top-down control cannot prevent attentional capture by an abrupt visual onset. The present research addressed whether a task-irrelevant abrupt onset would affect eye movement behavior when searching for a color singleton. Results show that in many instances the eye moved in the direction of the task-irrelevant abrupt onset. ...

Journal: :Proceedings of the National Academy of Sciences 2000

Journal: :Eos, Transactions American Geophysical Union 2013

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