Results 21 to 30 of about 2,712,541 (299)
Restoration of glades over the past 30 years, involving removal of woody cover and re‐establishment of herbaceous plant communities, has created an archipelago of habitat patches varying in age, size, and isolation. Within these glades, habitat varies in
Alice G. Tipton +2 more
doaj +1 more source
A thorough integral formulation describing the second harmonic generation under tightly focused linearly and radially polarized beams for an arbitrary distribution of the nonlinear susceptibility over the surface of isotropic media was presented.
Sergey Scherbak +3 more
doaj +1 more source
The possibility of using the universal software ANSYS to study the concentration of interlaminar stresses near the free edges of laminated composites in a two-dimensional finite element formulation is considered.
Yu. V. Skvortsov, M. A. Evtushenko
doaj +1 more source
The Occurence of Ecological Traps in Bird Populations: Is our Knowledge Sufficient? A Review
Anthropogenic changes in a landscape create new cues for birds, which must permanently adapt to these. If landscape changes occur too quickly, individuals have insufficient time to develop adequate reactions.
Suvorov Petr, Svobodová Jana
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Relation entre la composition floristique et des indicateurs de la fragmentation du paysage dans une région de transition forêt-savane ivoirienne [PDF]
Relation between floristic composition and landscape fragmentation indicators in a transition forest-savanna area of Côte d'Ivoire. Forest landscape fragmentation is known to be a significant factor of forest degradation.
Barima, YSS. +3 more
doaj
Spatial Patterns of Aflatoxin Levels in Relation to Ear-Feeding Insect Damage in Pre-Harvest Corn
Key impediments to increased corn yield and quality in the southeastern US coastal plain region are damage by ear-feeding insects and aflatoxin contamination caused by infection of Aspergillus flavus. Key ear-feeding insects are corn earworm, Helicoverpa
Alisa Huffaker +9 more
doaj +1 more source
Luttinger States at the Edge [PDF]
An effective wavefunction for the edge excitations in the Fractional quantum Hall effect can be found by dimensionally reducing the bulk wavefunction. Treated this way the Laughlin $\nu=1/(2n+1)$ wavefunction yields a Luttinger model ground state.
Fisher, M. P. A., Stone, M.
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Seagrasses, as key ecosystem engineers in coastal ecosystems, contribute to enhancing diversity in comparison with nearby bare areas. It has been proved mainly for epifauna, but data on infauna are still scarce.
Fernando G. Brun +5 more
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Bulk Versus Edge in the Quantum Hall Effect
The manifestation of the bulk quantum Hall effect on edge is the chiral anomaly. The chiral anomaly {\it is} the underlying principle of the ``edge approach'' of quantum Hall effect. In that approach, $\sxy$ should not be taken as the conductance derived
A. Cappelli +24 more
core +1 more source
Valley and pseudospin-valley topologically protected edge states in symmetric pillared phononic crystals [PDF]
We present a symmetric double-sided pillared phononic crystals (PPnCs) that can emulate both quantum spin Hall effect (QSHE) and quantum valley Hall effect (QVHE) by solely imposing different geometric perturbations.
Bonello, Bernard +3 more
core +2 more sources

