Results 81 to 90 of about 11,556,505 (305)

Wide Field Mapping of 5C12 [PDF]

International Astronomical Union Colloquium, 1991
AbstractThe existing method of producing radio maps from interferometric data set is based on the assumption that there is a two dimensional fourier transform relationship between the sky brightness and the measured visibility. In mapping of a very wide field, this basic assumption breaks down due to various practical problems, e.g. bandwidth smearing.
J. E. Okopi, L. B. Bååth
openaire   +1 more source

Plasma Equilibrium inside Various Cross-Section Capillary Discharges

, 2017
Plasma properties inside a hydrogen-filled capillary discharge waveguide were modeled with dissipative magnetohydrodynamic simulations to enable analysis of capillaries of circular and square cross-sections implying that square capillaries can be used to
Bagdasarov, Gennadiy, Barber, Samuel, Boldarev, Alexey, Bulanov, Sergei V., Bulanov, Stepan, Esarey, Eric, Gasilov, Vladimir, Gonsalves, Anthony J., Korn, Georg, Leemans, Wim P., Levato, Tadzio, Margarone, Daniele, Olkhovskaya, Olga, Sasorov, Pavel, Schroeder, Carl B., van Tilborg, Jeroen   +15 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

The Gridded Geomagnetic Field of India with MATLAB GUI

Data Science Journal
A unique two-dimensional gridded geomagnetic map of India is constructed using the geomagnetic field observations from 11 observatories of India, operated by the Indian Institute of Geomagnetism. In order to create the spatial grid, 11 spatial techniques
Jayashree Bulusu, Rohit Kumar Jha, Amrita Yadav, S. P. Anand, Gopi K. Seemala, Prasant K. Tiwari, A. P. Dimri   +6 more
doaj   +1 more source

Uniformly continuous 1-1 functions on ordered fields not mapping interior to interior [PDF]

Iranian Journal of Numerical Analysis and Optimization, 2008
In an earlier work we showed that for ordered fields F not isomorphic to the reals R, there are continuous 1-1 unctions on [0, 1]F which map some interior point to a boundary point of the image (and so are not open).
Mojtaba Moniri, Jafar S. Eivazloo
doaj   +1 more source

Topological Schemas of Memory Spaces

, 2017
Hippocampal cognitive map---a neuronal representation of the spatial environment---is broadly discussed in the computational neuroscience literature for decades.
Babichev, Andrey, Dabaghian, Yuri
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Artificial Potential Field with Discrete Map Transformation for Feasible Indoor Path Planning

Applied Sciences, 2020
This work considers the path planning problem of personal mobility vehicle (PMV) for indoor navigation using the Artificial Potential Field (APF) method.
Muhammad Zulfaqar Azmi, Toshio Ito
doaj   +1 more source

Magnetic properties of materials for MR engineering, micro-MR and beyond

, 2014
We present the results of a systematic measurement of the magnetic susceptibility of small material samples in a 9.4 T MRI scanner. We measured many of the most widely used materials in MR engineering and MR micro technology, including various polymers ...
Dragonu, Iulius, Leupold, Jochen, von Elverfeld, Dominik, Wallrabe, Ulrike, Wapler, Matthias C, Zaitsev, Maxim   +5 more
core   +1 more source

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