Results 51 to 60 of about 1,098,861 (293)

Spontaneous radiation of a finite-size dipole emitter in hyperbolic media [PDF]

, 2011
We study the radiative decay rate and Purcell effect for a finite-size dipole emitter placed in a homogeneous uniaxial medium. We demonstrate that the radiative rate is strongly enhanced when the signs of the longitudinal and transverse dielectric ...
A. Kavokin, Alexander N. Poddubny, E. L. Ivchenko, G. W. Milton, L. Banyai, L. Felsen, M. M. Glazov, M. Ya. Azbel, M. Ya. Azbel, Pavel A. Belov, Yuri S. Kivshar   +10 more
core   +2 more sources

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

The Chemical Stability Characterization and Kinetics of Statins in Aqueous Cyclodextrin Ocular Preparations: A Formulation Perspective

Pharmaceutics
Background: Topical statin therapy holds promise for ocular diseases, such as age-related macular degeneration, but the effective delivery to the posterior segment is limited by poor aqueous solubility, chemical instability, and ocular barriers ...
Ismael Abo Horan, Thorsteinn Loftsson, Hakon Hrafn Sigurdsson   +2 more
doaj   +1 more source

Theoretical Perspectives on the Gas-Phase Oxidation Mechanism and Kinetics of Carbazole Initiated by OH Radical in the Atmosphere

Atmosphere, 2022
Carbazole is one of the typical heterocyclic aromatic compounds (NSO-HETs) observed in polluted urban atmosphere, which has become a serious environmental concern.
Zhuochao Teng, Xiaotong Wang, Mohammad Hassan Hadizadeh, Yanan Han, Xianwei Zhao, Qi Zhang, Hetong Wang, Ying Li, Fei Xu, Yanhui Sun   +9 more
doaj   +1 more source

On the theory of electron transfer reactions at semiconductor electrode/liquid interfaces [PDF]

, 2000
Electron transfer reaction rate constants at semiconductor/liquid interfaces are calculated using the Fermi Golden Rule and a tight-binding model for the semiconductors.
Gao, Yi Qin, Georgievskii, Yuri, Marcus, R. A.   +2 more
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Revealing Hydrogen States in Carbon Structures by Analyzing the Thermal Desorption Spectra

C, 2022
An effective methodology for the detailed analysis of thermal desorption spectra (TDS) of hydrogen in carbon structures at micro- and nanoscale was further developed and applied for a number of TDS data of one heating rate, in particular, for graphite ...
Yury S. Nechaev, Evgeny A. Denisov, Nadezhda A. Shurygina, Alisa O. Cheretaeva, Ekaterina K. Kostikova, Sergei Yu. Davydov, Andreas Öchsner   +6 more
doaj   +1 more source

Mesoscopic Model for Diffusion-Influenced Reaction Dynamics

, 2003
A hybrid mesoscopic multi-particle collision model is used to study diffusion-influenced reaction kinetics. The mesoscopic particle dynamics conserves mass, momentum and energy so that hydrodynamic effects are fully taken into account.
Kapral R., Kay Tucci, Raymond Kapral, von Smoluchowski M., von Smoluchowski M., von Smoluchowski M.   +5 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

Kinetic Study of Oxygen Adsorption over Nanosized Au/γ-Al₂O₃ Supported Catalysts under Selective CO Oxidation Conditions

Molecules, 2012
O₂ adsorption is a key process for further understanding the mechanism of selective CO oxidation (SCO) on gold catalysts. Rate constants related to the elementary steps of O₂ adsorption, desorption and ...
George Karaiskakis, Aglaia Georgaka, Dimitrios Gavril   +2 more
doaj   +2 more sources