Results 51 to 60 of about 50,093 (261)
African Vision and Eye Health, 2010 In aprevious study special rays and structures, including nodal, principal and focal rays and structures, were defined in terms of generalized magnification of reduced inclination of rays across thesystem. The mathematical structure of the transference,
W. F. Harris
doaj +1 more source
Correlations in non-Hermitian systems and diagram techniques for the steady state
Physical Review Research, 2020 I construct a diagrammatic technique for non-Hermitian fermionic systems which allows addressing correlation effects in the steady state by systematic expansion.
Johan Carlström
doaj +1 more source
C1 neurons: a nodal point for stress? [PDF]
Experimental Physiology, 2017 New Findings What is the topic of this review? The C1 neurons (C1) innervate sympathetic and parasympathetic preganglionic neurons plus numerous brain nuclei implicated in stress, arousal and autonomic regulations. We consider here the contribution of C1 to stress‐induced responses. What advances does it highlight?
Ruth L. Stornetta, Patrice G. Guyenet
openaire +2 more sources
Hard‐Magnetic Soft Millirobots in Underactuated Systems
Advanced Robotics Research, EarlyView.This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang +4 more
wiley +1 more source
Phononic nodal point in two dimensions: A mini-review
Frontiers in Physics, 2022 In recent decades, nodal point states in electronic systems have attracted significant interest in current research. Recently, the conceptual framework of nodal point states has been extended to bosonic systems, especially the phononic one.
Ying Yang
doaj +1 more source
Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots
Advanced Robotics Research, EarlyView.A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun +3 more
wiley +1 more source
Experimental observation of photonic nodal line degeneracies in metacrystals
Nature Communications, 2018 Nodal lines are 1D band crossings forming a ring in the Brillouin zone which can spawn Weyl points. Here, using a cut-wire metacrystal designed for gigahertz frequencies, Gao et al.
Wenlong Gao +7 more
doaj +1 more source
Targeting the PDK1/c‐Myc/SOX10 Signaling in Oligodendrocytes Alleviates Neuropathic Pain
Advanced Science, EarlyView.This work reveals that oligodendrocyte homeostasis, mediated by PDK1, is a critical determinant of neuropathic pain (NPP) pathogenesis. Disruption of PDK1 in oligodendrocytes impairs SOX10‐dependent myelination programs through c‐Myc accumulation, leading to disrupted myelination and the pathophysiology of NPP.
Pingping Qiao +7 more
wiley +1 more source
The Inverse Nodal problem for the fractional diffusion equation
Acta Scientiarum: Technology, 2015 In this paper, on a general finite interval, the inverse problem of recovering the potential function for a fractional diffusion equation with new spectral parameter, called the nodal point, is given.
Erdal Bas
doaj +1 more source
E2F: a nodal point in cell cycle regulation [PDF]
Biochimica et Biophysica Acta (BBA) - Reviews on Cancer, 1997 1. IntroductionThe transcription factor E2F was first identified asa factor that interacts with the adenovirus early re-gion 2 E2 promoter. Activation of the E2 promoter.by the adenovirus E1A gene products was shown tobe mediated through the E2F element and did notrequire novel protein synthesis 1 .
openaire +2 more sources