Results 41 to 50 of about 1,808,593 (336)
Bending and Breathing Modes of the Galactic Disk [PDF]
, 2014 We explore the hypothesis that a passing satellite or dark matter subhalo has excited coherent oscillations of the Milky Way's stellar disk in the direction perpendicular to the Galactic midplane.
Barber, Jarrett +3 more
core +1 more source
The role and implications of mammalian cellular circadian entrainment
FEBS Letters, EarlyView.At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley +1 more source
Satellite Navigation, 2021 An aided Inertial Navigation System (INS) is increasingly exploited in precise engineering surveying, such as railway track irregularity measurement, where a high relative measurement accuracy rather than absolute accuracy is emphasized.
Qijin Chen +3 more
doaj +1 more source
EURASIP Journal on Wireless Communications and Networking, 2008 The call for papers resulted in a high number of submis- sions, from which we have been able to select 12 excellent papers dealing with the different aspects of satellite commu- nications and navigation. Multiple-input multiple-output (MIMO) techniques are attracting a considerable amount of attention from within the terrestrial wireless community. The
Sheriff, Ray E +2 more
openaire +3 more sources
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
International Journal of Aerospace EngineeringUnder most circumstances, the current studies related to precision orbit determination (POD) using intersatellite link (ISL) measurements are limited to ISL ranging components.
Haijian Fang +8 more
doaj +1 more source
Satellite Navigation, 2020 In view of the influence of model errors in conventional BeiDou prediction models for clock offsets, a semiparametric adjustment model for BeiDou Navigation Satellite System (BDS) clock offset prediction that considers model errors is proposed in this ...
Xiong Yan +3 more
doaj +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Inflammatory myofibroblastic tumor of jejunum in a child
Journal of Pediatric Surgery Case Reports, 2019 Myofibroblastic tumor is one of the rare solid tumors occurring in children. It is mesenchymal in origin composed of myofibroblastic spindle cells admixed with lymphocytes, plasma cells, and eosinophills.
Naeem Liaqat +5 more
doaj +1 more source
Next Generation High Throughput Satellite System [PDF]
, 2012 This paper aims at presenting an overview of the state-of-the-art in High Throughput Satellite (HTS) systems for Fixed Satellite Services (FSS) and High Density-FSS.
Alberty, Eric +5 more
core +1 more source