Results 41 to 50 of about 187,486 (334)
Color polymorphism in Anemone coronaria: Correlations with soil, climate, and flowering phenology
American Journal of Botany, EarlyView.Abstract Premise Flower color polymorphism (FCP) is thought to be driven by multiple selection agents. Although widely associated with visual attraction of multiple pollinators, FCP is also often correlated with abiotic factors. We explored the links between abiotic conditions, flowering phenology, and FCP in the winter‐flowering geophyte Anemone ...
Tzlil Labin +4 more
wiley +1 more source
$\delta$ meson effects on neutron stars in the modified quark-meson coupling model
, 2008 The properties of neutron stars are investigated by including $\delta$ meson field in the Lagrangian density of modified quark-meson coupling model. The $\Sigma^-$ population with $\delta$ meson is larger than that without $\delta$ meson at the beginning,
Baym G. +5 more
core +1 more source
The non-perturbative unquenched quark model
EPJ Web of Conferences, 2017 In recent years states in the quarkonium spectrum not expected in the naive quark model have appeared and created a lot of interest. In the theoretical side the study of the effect of meson-meson thresholds in the spectrum have been performed in ...
Entern D.R., Ortega P.G., Fernández F.
doaj +1 more source
American Journal of Botany, EarlyView.Abstract Premise Evolutionary theory predicts polymorphism should be rare; however, intraspecific variation in floral color is common and can be attributed to genetic drift, plasticity, or variable selection. Examining floral color polymorphism both within contact zones and across a species' range can reveal the mechanisms maintaining this variation ...
Emma Fetterly +6 more
wiley +1 more source
Effective meson masses, effective meson-nucleon couplings and neutron star radii
, 2004 Using the generalized mean field theory, we have studied the relation among the effective meson masses, the effective meson-nucleon couplings and the equation of state (EOS) in asymmetric nuclear matter.
AKIRA HASEGAWA +12 more
core +2 more sources
Intrinsic operators for the electromagnetic nuclear current [PDF]
, 1996 The intrinsic electromagnetic nuclear meson exchange charge and current operators arising from a separation of the center-of-mass motion are derived for a one-boson-exchange model for the nuclear interaction with scalar, pseudoscalar and vector meson ...
Adam +23 more
core +3 more sources
In-medium Properties of the η′-Meson from Photonuclear Reactions
EPJ Web of Conferences, 2012 Investigations of in-medium properties of the η′-meson are presented. The photoproduction of η′-mesons off 12C, 40Ca, 93Nb and 208Pb nuclei has been measured with the Crystal Barrel/TAPS detector system at the ELSA accelerator in Bonn.
Nanova Mariana
doaj +1 more source
(Anti-)Stokes scattering on kinks
Journal of High Energy Physics, 2023 At leading order, there are three inelastic scattering processes beginning with a quantum kink and a fundamental meson. Meson multiplication, in which the final state is a kink and two mesons, was treated recently.
Jarah Evslin, Hui Liu
doaj +1 more source
Resolving the RpA and v2 puzzle of D0 mesons in p−Pb collisions at the LHC
Physics Letters B, 2023 It has been a challenge to understand the experimental data on both the nuclear modification factor and elliptic flow of D0 mesons in p−Pb collisions at LHC energies.
Chao Zhang +3 more
doaj +1 more source
American Journal of Botany, EarlyView.Abstract Premise Understanding genetic and morphological variability helps efforts to sustain landscapes and develop effective species concepts for resolving difficult groups. To unravel puzzling relationships and range disjunctions, we applied morphometrics, phenology, phylogenetics and population genetics in Camassia species with cultural, ecological,
Susan R. Kephart +5 more
wiley +1 more source