For phototactic migration, Chlamydomonas scans the surrounding light environment by rotating the cell body with an eyespot located on the equator. The intensity of the light signal received by the eyespot should therefore change cyclically at the frequency of the cell body rotation. In this study, the response of the photoreceptor to cyclically changing light stimuli was analyzed using immotile...

Current numerical schemes for 3D rockfall simulation are not able to correctly represent the stability properties of a freely rotating body. Here, we give proof using Lyapunov functions an extended intermediate axis theorem, which only involves angular momentum equations but also orientation Inspired by proof, present novel scheme respects body and can be incorporated in rigid bodies with frict...

A theoretical and experimental investigation of drop motion in rotating fluids is presented. The theory describing the vertical on-axis translation of an axisymmetric rigid body through a rapidly rotating low-viscosity fluid is extended to the case of a buoyant deformable fluid drop of arbitrary viscosity. In the case that inertial and viscous effects are negligible within the bulk external flo...

The paper considers a specific class of wheeled mobile robots referred to as mobile wheeled pendulums (MWP). Robots pertaining to this class are composed of two wheels rotating about a central body. The main feature of the MWP pertains to the central body, which can rotate about the wheel axes. As such motion is undesirable, the problem of the stabilization of the central body in MWP is crucial...

BACKGROUND Rotating night shift work disrupts circadian rhythms and has been associated with obesity, metabolic syndrome, and glucose dysregulation. However, its association with type 2 diabetes remains unclear. Therefore, we aimed to evaluate this association in two cohorts of US women. METHODS AND FINDINGS We followed 69,269 women aged 42-67 in Nurses' Health Study I (NHS I, 1988-2008), and...

BACKGROUND A job-related factor is attracting a growing interest as a possible determinant of body weight gain in shift-workers. OBJECTIVE The aim of the study was to reinvestigate the issue of overweight between rotating shift workers and daytime workers, taking into consideration possible confounding covariate factors. METHODS This is a cross-sectional study, conducted by reviewing data f...

Studies of the restricted three-body problem can help in understanding the dynamics of three-body interactions in the solar system. In the rotating coordinate system based on the two principal bodies there are five fixed Lagrange points. The equations of motion of the third body near a Lagrange point may be linearized, showing that under certain conditions there can be librational motion about ...

Following two previous papers, we examine singleand many-body states of relativistic charged particles in an intense, rotating magnetic dipole field. Single-body orbits are derived classically and semiclassically, and then applied to the many-body case via the Thomas-Fermi approximation. Examples of electrons in a realistic neutron star crust are considered with both fixed density profiles and ...