Results 221 to 230 of about 719,654 (263)
Some of the next articles are maybe not open access.
1981
The discovery of emission and absorption of γ rays free of thermal Doppler broadening and the effects of recoil by R.L. MOSSBAUER [3.1] brought to experimental physics a tool that has been used to detect fractional changes of electromagnetic energy smaller than can be detected by any other technique.
openaire +1 more source
The discovery of emission and absorption of γ rays free of thermal Doppler broadening and the effects of recoil by R.L. MOSSBAUER [3.1] brought to experimental physics a tool that has been used to detect fractional changes of electromagnetic energy smaller than can be detected by any other technique.
openaire +1 more source
Astrophysics and Space Science, 1970
The paper is an extension of this author's hypothesis, presented inAstrophys. Space Sci.3 (1969), 268, which explains the red shift in terms of a geometry of static space and stationary observers. The author introduces here the notions of ‘metric with an observer’, ‘observed distance’ and ‘space of observations’; he considers the problem of the ...
openaire +1 more source
The paper is an extension of this author's hypothesis, presented inAstrophys. Space Sci.3 (1969), 268, which explains the red shift in terms of a geometry of static space and stationary observers. The author introduces here the notions of ‘metric with an observer’, ‘observed distance’ and ‘space of observations’; he considers the problem of the ...
openaire +1 more source
Science, 2004
ECOLOGY/EVOLUTION Evolution is a process that manifests itself at every level of biological organization, from molecule to population. However, it is rare that it can be observed and measured at all these levels simultaneously to provide an unbroken chain of cause and effect. Stolz et al.
openaire +1 more source
ECOLOGY/EVOLUTION Evolution is a process that manifests itself at every level of biological organization, from molecule to population. However, it is rare that it can be observed and measured at all these levels simultaneously to provide an unbroken chain of cause and effect. Stolz et al.
openaire +1 more source
Solar Physics, 1971
The Freundlich red shift of wavelengths in the solar spectrum is discussed. Born's approach on the photon-photon interaction is used in conjunction with Melvin's recalculation of Freundlich's universal constant in order to derive the cross-section for scattering in the solar atmosphere. The new cross-section appears to be 〈σ⊙〉 = 1.58 × 10−18 cm2, which
openaire +1 more source
The Freundlich red shift of wavelengths in the solar spectrum is discussed. Born's approach on the photon-photon interaction is used in conjunction with Melvin's recalculation of Freundlich's universal constant in order to derive the cross-section for scattering in the solar atmosphere. The new cross-section appears to be 〈σ⊙〉 = 1.58 × 10−18 cm2, which
openaire +1 more source
Mapping the Complete Photocycle that Powers a Large Stokes Shift Red Fluorescent Protein
Angewandte Chemie - International Edition, 2023Ziyu Wang, Quanjiang Ji, Chong Fang
exaly
Low temperature induced red-shift in violet-blue emission from Zn(Al, Ag)O nanoparticles
Materials Technology, 2022Ashok Kumawat +2 more
exaly