Results 81 to 90 of about 70,698 (256)

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

open access: yesAdvanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon   +10 more
wiley   +1 more source

Expanding the applicability of the Gauss-Newton method for a certain class of systems of equations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2016
We present a new semilocal convergence analysis of the Gauss-Newton method in order to solve a certain class of systems of equations under a majorant condition.
Ioannis K. Argyros, Santhosh George
doaj   +2 more sources

Modeling and Simulation of Acting Force on a Flexible Automotive Wiper

open access: yesApplications of Modelling and Simulation, 2018
A vehicle wiper system has a potential to generate noise and vibration during its operation. These unwanted dynamics provide poor visibility to drivers and passengers especially during raining condition.
I. Salleh   +2 more
doaj  

Extending Broyden's method to interaction problems

open access: yesJournal of Numerical Analysis and Approximation Theory, 2008
The solution of problems involving the interaction of different systems is a domain of ongoing research, although often a good solver already exists for each system separately.
Robby Haelterman   +3 more
doaj   +2 more sources

Cellular Snowballing: Cell Adhesion and Migration Drive the Self‐Assembly of Cell‐Microgel Biohybrid Spheroids

open access: yesAdvanced Science, EarlyView.
A new class of biohybrid spheroids is engineered through the self‐assembly of adherent cells and extracellular matrix‐mimetic hydrogel microparticles (microgels). By mimicking a snowballing effect, this approach enables scalable formation of porous, millimeter‐scale spheroids with enhanced cell viability and molecular diffusion.
Zaman Ataie   +7 more
wiley   +1 more source

Quadratically convergent algorithm for computing real root of non-linear transcendental equations

open access: yesBMC Research Notes, 2018
Objectives The present paper describes a new algorithm to find a root of non-linear transcendental equations. It is found that Regula-Falsi method always gives guaranteed result but slow convergence.
Srinivasarao Thota   +1 more
doaj   +1 more source

Attracting Orbits in Newton's Method [PDF]

open access: yesTransactions of the American Mathematical Society, 1986
It is well known that the dynamical system generated by Newton’s Method applied to a real polynomial with all of its roots real has no periodic attractors other than the fixed points at the roots of the polynomial. This paper studies the effect on Newton’s Method of roots of a polynomial "going complex".
openaire   +2 more sources

In Situ Characterisation of Hydrogels via Dynamic Interface Printing

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogels have become pivotal materials for tissue engineering, robotics, biomedical devices, and sensing applications due to their diverse material compositions and tunable mechanical properties. While significant effort has focused on developing novel manufacturing approaches such as extrusion bioprinting and light‐based fabrication methods,
Callum Vidler   +2 more
wiley   +1 more source

Newton's Method in Banach Spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1955
1. G. N. Watson, A treatise on the theory of Bessel functions, 2d ed., Cambridge University Press, 1944. 2. K. M. Siegel, An inequality involving Bessel functions of argument nearly equal to their order, Proc. Amer. Math. Soc., vol. 4 (1953) pp. 858-859. 3. K. M. Siegel and F. B.
openaire   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

open access: yesAdvanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen   +7 more
wiley   +1 more source

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