Results 41 to 50 of about 2,386,368 (304)

Evidence for erbium-erbium energy migration in erbium(III) bis(perfluoro-p-tolyl)phosphinate [PDF]

open access: yes, 2008
Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Gillin, WP   +4 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

NUMERICAL STUDIES IN NON-OHMIC HOPPING CONDUCTION IN RANDOM SYSTEMS

open access: yesTASK Quarterly, 1997
Phonon-assisted hopping o f carriers between spatially distinct locations is the basic transport mechanisms in low-mobility solids (weakly doped or strongly compensated semiconductors, amorphous solids, glasses, organic solids, transition metal oxides ...
JAROSŁAW RYBICKI, GIORGIO MANCINI
doaj  

Nuclear Security Applications of Antineutrino Detectors: Current Capabilities and Future Prospects

open access: yes, 2009
Antineutrinos are electrically neutral, nearly massless fundamental particles produced in large numbers in the cores of nuclear reactors and in nuclear explosions.
Baldwin, G.   +7 more
core   +1 more source

The magnetic field effect on the transport and efficiency of group III tris(8-hydroxyquinoline) organic light emitting diodes [PDF]

open access: yes, 2008
Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Burrows P. E.   +6 more
core   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Semiclassical atom theory applied to solid-state physics

open access: yes, 2016
Using the semiclassical neutral atom theory, we extend to fourth order the modified gradient expansion of the exchange energy of density functional theory. This expansion can be applied both to large atoms and solid-state problems. Moreover, we show that
Constantin, L. A.   +4 more
core   +3 more sources

The activation energy for GaAs/AlGaAs interdiffusion [PDF]

open access: yes, 1997
Copyright 1997 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. This article appeared in Journal of Applied Physics 82, 4842 (
Guido L. J.   +9 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

HOW DOCTOR WOLF VACCINATED SMALLPOX IN GDANSK

open access: yesTASK Quarterly, 1997
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ANDRZEJ JANUSZAJTIS
doaj  

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