Results 1 to 10 of about 719,538 (262)

Photon frequency variation in non-linear electro-magnetism

open access: yesPhysics Letters B
We set a generalised non-linear Lagrangian, encompassing Born-Infeld and Heisenberg-Euler theories among others. The Lagrangian reduces to the Maxwell Lagrangian at lowest order.
Alessandro D.A.M. Spallicci   +2 more
doaj   +1 more source

High sensitive fast gamma radiation sensor based on Yb-doped optical fiber: offline and online detection

open access: yesJPhys Photonics
Radiation science has a wide range of applications, from industrial uses and medical treatments to space research and national defense. Optical fiber technology offers a flexible and sensitive alternative solution for accurate radiation measurements in ...
Esra Kendir Tekgül   +3 more
doaj   +1 more source

Structural Analysis of the Large Stokes Shift Red Fluorescent Protein tKeima

open access: yesMolecules
The Keima family comprises large Stokes shift fluorescent proteins that are useful for dual-color fluorescence cross-correlation spectroscopy and multicolor imaging.
Ki Hyun Nam, Yongbin Xu
doaj   +1 more source

The solar red-shift

open access: yes, 1961
Shortly after Rowland's fundamental study of the wavelengths of Fraunhofer lines, Jewell in 1896 observed that the solar wavelengths were shifted to the red side of the corresponding wavelengths observed in the laboratory. This shift became known as the red shift of solar lines, and at first led to various erroneous concepts of conditions in the solar ...
openaire   +2 more sources

Sleep Disruption and Shift Work Associate with Increased Risk of Reproductive Endocrine Disorders: Evidence from UK Biobank and Mendelian Randomization

open access: yesInternational Journal of Women's Health
Hanke Zhang,* Ruyu Luo,* Yuqing Fang, Hongbo Wang, Yanhui Li* Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, People’s Republic ...
Zhang H, Luo R, Fang Y, Wang H, Li Y
doaj  

On the red-shift emission from the black hole horizons replicas

open access: yesEuropean Physical Journal C: Particles and Fields
We examine the red-shift emission from special orbits (horizons replicas) where photons have the same angular velocity, in magnitude, as those of the Kerr black hole (BH) Killing horizons.
D. Pugliese, Z. Stuchlík
doaj   +1 more source

On the Interpretation of the Extragalactic Red-shifts [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1954
openaire   +1 more source

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