Results 11 to 20 of about 776,544 (281)

Testosterone Administration Induces a Red Shift in Democrats [PDF]

Brain and Behavior
Objective An experiment was run to test if a testosterone administration would influence the political preferences of 136 healthy males. Method Synthetic testosterone or placebo was administered to participants who identified the strength of their ...
Rana Alogaily, Giti Zahedzadeh, Kenneth V. Pyle, Cameron J. Johnson, Paul J. Zak   +4 more
doaj   +2 more sources

Doppler effect tailoring: extra-red shift of structured light [PDF]

Nature Communications
Doppler effect is a universal phenomenon that describes the frequency shift of waves when interacting with moving targets. Recent studies suggest that the spatial structures of light beams would provide a modification of the group and phase velocities of
Zhenyu Wan, Ziyi Tang, Jian Wang
doaj   +2 more sources

Dragonfly red opsins share a common tuning mechanism with mammalian red opsins and further enhancement of near-infrared sensitivity [PDF]

Cellular and Molecular Life Sciences
Some animals, such as primates and insects have color vision including sensitivity to red light (red vision). Red vision is basically achieved through opsins sensitive to the red region (red opsins), which independently evolved in different lineages.
Ryu Sato, Akihisa Terakita, Mitsumasa Koyanagi   +2 more
doaj   +2 more sources

Um Estudo Químico-quântico da Covalência Intermolecular em Sistemas Estabilizados por Ligações de Hidrogênio π∙∙∙H e N∙∙∙H: Cálculos DFT, ChelpG, NBO e QTAIM

Orbital: The Electronic Journal of Chemistry, 2016
In this work, density functional calculations at BHandHLYP/6-311++G(d,p) theoretical level of structural parameters, electronic properties and vibration modes of the C2H2∙∙∙HCN∙∙∙HF and C2H4∙∙∙HCN∙∙∙HF T-shaped hydrogen complexes is presented.
Danilo Guimarães do Rego, Boaz Galdino de Oliveira   +1 more
doaj   +3 more sources

Cosmology and the massive photon frequency shift in the Standard-Model Extension

European Physical Journal C: Particles and Fields, 2021
The total red shift z might be recast as a combination of the expansion red shift and a static shift due to the energy–momentum tensor non-conservation of a photon propagating through Electro-Magnetic (EM) fields.
Alessandro D. A. M. Spallicci, José A. Helayël-Neto, Martín López-Corredoira, Salvatore Capozziello   +3 more
doaj   +1 more source

Enantioselective Recognition of Lysine and Phenylalanine Using an Imidazole Salt-Type Fluorescent Probe Based on H₈-BINOL

Molecules, 2022
An imidazole bromide fluorescent probe (R)-1 based on chiral H8-BINOL was synthesized with a high yield; it was found to have good enantioselective recognition of lysine and phenylalanine using fluorescence analysis.
Zhaoqin Wei, Shi Tang, Xiaoxia Sun, Yu Hu   +3 more
doaj   +1 more source

Proton transport model in the ionosphere. 2. Influence of magnetic mirroring and collisions on the angular redistribution in a proton beam [PDF]

Annales Geophysicae, 1998
We investigate the influence of magnetic mirroring and elastic and inelastic scattering on the angular redistribution in a proton/hydrogen beam by using a transport code in comparison with observations.
M. Galand, J. Lilensten, W. Kofman, D. Lummerzheim   +3 more
doaj   +1 more source

An Efficient Forward-Biased Si CMOS LED With High Optical Power Density and Nonlinear Optical-Power-Current Characteristic

IEEE Photonics Journal, 2019
A forward-biased silicon-based light-emitting device (Si-LED) was designed and fabricated by standard 0.18 μm complementary metal-oxide-semiconductor (CMOS) technology without any modification.
Jia Cong, Luhong Mao, Rong Xie, Sheng Xie, Weilian Guo   +4 more
doaj   +1 more source

The Synthesis, Crystal Structure, DFT Calculations and Optical Properties of Orcinolic Derivatives as OH⁻ Indicators

Crystals, 2022
The structures of 2-(3-hydroxy-5-methylphenoxy)-N-(4-nitrophenyl)acetamide), B1, and 2-(3-hydroxy-5-methylphenoxy)-N-(4-(trifluoromethyl)phenyl)acetamide, B2, are crystallized in the crystal symmetry of the monoclinic structure and in the space group of ...
Boontana Wannalerse, Paradee Kwanmuang, Piangkwan Jansukra, Bussaba Pinchaipat, Tanwawan Duangthongyou, Panitat Hasin, Apisit Songsasen, Kittipong Chainok, Songwut Suramitr   +8 more
doaj   +1 more source

Gravitational red-shift and deflection of slow light [PDF]

, 2008
We explore the nature of the classical propagation of light through media with strong frequency-dependent dispersion in the presence of a gravitational field.
A. N. Jordan, J. B. Hartle, J. C. Howell, J. Dressel, L. D. Landau, L. M. Barkov, M. Born, M. Göckeler, P. W. Milonni, S. G. Rajeev   +9 more
core   +3 more sources