Results 31 to 40 of about 315,978 (276)

Magnetic Fluctuations, Precursor Phenomena and Phase Transition in MnSi under Magnetic Field [PDF]

open access: yes, 2017
The reference chiral helimagnet MnSi is the first system where skyrmion lattice correlations have been reported. At zero magnetic field the transition at $T_C$ to the helimagnetic state is of first order.
Bannenberg, L.   +10 more
core   +5 more sources

Nonperturbative QCD Vacuum Effects in Nonlocal Quark Dynamics [PDF]

open access: yes, 1997
A straightforward calculation reveals the essentially nonlocal character of the leading heavy $Q\bar{Q}$ interaction arising from nonperturbative gluon field correlations in the model of a fluctuating QCD vacuum.
A. Gara   +31 more
core   +4 more sources

COSMIC INFRARED BACKGROUND FLUCTUATIONS AND ZODIACAL LIGHT [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We performed a specific observational test to measure the effect that the zodiacal light can have on measurements of the spatial fluctuations of the near-IR background. Previous estimates of possible fluctuations caused by zodiacal light have often been extrapolated from observations of the thermal emission at longer wavelengths
Richard G. Arendt   +3 more
openaire   +2 more sources

Importance of Fluctuations in Light on Plant Photosynthetic Acclimation [PDF]

open access: yes, 2017
The acclimation of plants to light has been studied extensively, yet little is known about the effect of dynamic fluctuations in light on plant phenotype and acclimatory responses.
Lawson, T   +4 more
core   +4 more sources

Photoprotection of photosystems in fluctuating light intensities [PDF]

open access: yesJournal of Experimental Botany, 2014
Oxygenic photosynthetic organisms experience strong fluctuations in light intensity in their natural terrestrial and aquatic growth environments. Recent studies with both plants and cyanobacteria have revealed that Photosystem (PS) I is the potential target of damage upon abrupt changes in light intensity.
Yagut, Allahverdiyeva   +3 more
openaire   +2 more sources

Photosynthetic Light-use Efficiency in Rice (Oryza sativa L.) Leaf under Light with Fluctuating Intensities at Two Different Ambient Humidities

open access: yesPlant Production Science, 2000
Photosynthetic and transpiration rates of rice leaf were measured under light with an intensity fluctuating in a wide range of frequencies (2.8 × 10–4∼4 Hz). The time course of photosynthetic rate differed with the frequency.
Seiichi Nishimura   +3 more
doaj   +1 more source

Cavity Light-Matter Entanglement through Quantum Fluctuations

open access: yesPhysical Review Letters, 2023
The hybridization between light and matter forms the basis to achieve cavity control over quantum materials. In this work we investigate a cavity coupled to an XXZ quantum chain of interacting spinless fermions by numerically exact solutions and perturbative analytical expansions.
Giacomo Passetti   +3 more
openaire   +5 more sources

Plasticity of Arabidopsis rosette transcriptomes and photosynthetic responses in dynamic light conditions

open access: yesPlant Direct, 2023
With the high variability of natural growth environments, plants exhibit flexibility and resilience in regard to the strategies they employ to maintain overall fitness, including maximizing light use for photosynthesis, while simultaneously limiting ...
Hussien F. Alameldin   +1 more
doaj   +1 more source

Casimir energy corrections by light-cone fluctuations [PDF]

open access: yesInternational Journal of Modern Physics A, 2014
We study the effects of light-cone fluctuations on the renormalized zero-point energy associated with a free massless scalar field in the presence of boundaries. In order to simulate light-cone fluctuations, we introduce a space–time dependent random coefficient in the Klein–Gordon operator.
Arias, E.   +4 more
openaire   +4 more sources

Effects of Artificially Reproduced Fluctuations in Sunlight Spectral Distribution on the Net Photosynthetic Rate of Cucumber Leaves

open access: yesFrontiers in Plant Science, 2021
The effects of photosynthetic photon flux density (PPFD) fluctuations in sunlight have already been investigated; however, the spectral photon flux density distribution (SPD) has hardly been considered.
Ryo Matsuda   +2 more
doaj   +1 more source

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