Filopodia are ubiquitous fingerlike protrusions, spawned by many eukaryotic cells, to probe and interact with their environments. Polymerization dynamics of actin filaments, comprising the structural core of filopodia, largely determine their instantaneous lengths and overall lifetimes. The polymerization reactions at the filopodial tip require transport of G-actin, which enter the filopodial t...

Auditory hair cells represent one of the most prominent examples of epithelial planar polarity. In the auditory sensory epithelium, planar polarity of individual hair cells is defined by their V-shaped hair bundle, the mechanotransduction organelle located on the apical surface. At the tissue level, all hair cells display uniform planar polarity across the epithelium. Although it is known that ...

Flux ropes are a proposed site for particle energization during magnetic reconnection, with several mechanisms proposed. Here, Magnetospheric Multiscale mission observations of mirror structures on the edge two ion-scale magnetopause flux presented. Donut-shaped features in electron pitch angle distributions provide evidence trapping structures. Furthermore, both events show extended 3D structu...

In this study, it was attempted to design a high-performance single-walled carbon nanotube (SWCNT) bundle interconnects in a full adder. For this purpose, the circuit performance was investigated using simulation in HSPICE software and considering the technology of 32-nm. Next, the effects of geometric parameters including the diameter of a nanotube, distance between nanotubes in a bundle, and ...

We examined interplanetary magnetic field disturbances recorded at the NEARShoemaker spacecraft when it was above either the east or west solar limb as seen from Earth, and then we identified the associated coronal mass ejections (CMEs) detected above the limbs by the SOHO/LASCO coronagraph. We found 10 cases where a nonrecurring IP disturbance could be associated with a CME. Eight of the distu...

The nonlinear vibration of a flexible hoisting rope with time-varying length and axial velocity is investigated. The flexible hoisting rope is modeled as a taut translating string with a rigid body attached at its low end. A systematic procedure for deriving the system model of a flexible hoisting rope with time-varying length and axial velocity is presented. The governing equations were develo...

Within the framework of the cubic honeycomb (cubic tessellation) of Euclidean 3-space, we define a quantum system whose states, called quantum knots, represent a closed knotted piece of rope, i.e., represent the particular spatial configuration of a knot tied in a rope in 3-space. This quantum system, called a quantum knot system, is physically implementable in the same sense as Shor’s quantum ...

Abstract Magnetic field extrapolation is a fundamental tool to reconstruct the three-dimensional magnetic above solar photosphere. However, prevalently used force-free model might not be applicable in lower atmosphere with non-negligible plasma β , where crucial process of flux rope formation and evolution could happen. In this work, we perform active region 12158, based on recently developed m...

Abstract We present a magnetohydrodynamic simulation of the coronal mass ejection on 2006 December 13 in emerging ? -sunspot NOAA Active Region 10930, improving upon previous by Fan as follows. (1) Incorporate an ambient solar wind instead using static potential magnetic field extrapolation initial state. (2) In addition to imposing emergence twisted flux rope, also impose at lower boundary ran...