Results 61 to 70 of about 152,368 (295)

Developing a macroecology for human‐altered ecosystems

Ecography, EarlyView.
Although anthropogenically‐induced ecological disruptions are fundamentally important in defining ecosystem properties, they are largely overlooked by macroecological theory. Anthropogenic disruptions and their effects are generally not comparable to one another, nor to disturbances that are part of natural disturbance regimes.
Erica A. Newman, Mark Q. Wilber, Alexandre Génin, Oriana E. Chafe, Henry F. Houskeeper, Steven Lee, Eric L. Berlow, John Harte   +7 more
wiley   +1 more source

S-wave Meson-Nucleon Interactions and the Meson Mass in Nuclear Matter from Chiral Effective Lagrangians

, 1995
Chiral effective lagrangians may differ in their prediction of meson-nucleon scattering amplitudes off-meson-mass-shell, but must yield identical S-matrix elements.
Thorsson, Vesteinn, Wirzba, Andreas
core   +2 more sources

MESON-MESON THEORY

Le Journal de Physique Colloques, 1973
No abstract ...
openaire   +2 more sources

Climate change effects on biomass and greenhouse gas emissions are ameliorated by nontoxic endophytes in southeastern USA transition zone tall fescue pastures

Grassland Research, EarlyView.
Tall fescue produces more biomass and less carbon dioxide from the soil when it contains its beneficial fungal endophyte. Increased temperatures projected with climate change reduce fescue biomass, while altered rainfall frequency does not. Altering rainfall frequency and increasing temperatures can reduce carbon dioxide emissions from soil.
Rebecca K. McGrail, Jonathan D. Moore, A. Elizabeth Carlisle, Jim A. Nelson, Rebecca L. McCulley   +4 more
wiley   +1 more source

Meson scattering in a non-minimally Lorentz-violating scalar QED at finite temperature

European Physical Journal C: Particles and Fields
In this paper we study meson scattering in a non-minimally Lorentz-violating scalar QED at finite temperature. The meson scatterings were investigated in tree level and the finite temperature effects were addressed by using the thermofield dynamics ...
M. C. Araújo, R. V. Maluf, J. Furtado
doaj   +1 more source

Two-index SU(N) theories from one flavor QCD to Steven Weinberg's ππ scattering legacy

Nuclear Physics B
I review and improve on how two-index SU(N) gauge-fermion theories help access salient information about the large N vacuum and spectrum of QCD, super Yang Mills and meson-meson scattering.
Francesco Sannino
doaj   +1 more source

Effects of Meson Mass Reduction on the Properties of Neutron Star Matter

, 2003
We investigate the effects of meson-mass reduction on the properties of the neutron star matter. We adopt the Brown-Rho scaling law to take into account density dependence of meson masses in the quantum hadrodynamics, quark-meson coupling and modified ...
Agakichiev, Boguta, Brown, C.H. Hyun, Guichon, Hatsuda, Hyun, Jin, M.H. Kim, Ozawa, S.W. Hong, Saito, Serot   +12 more
core   +2 more sources

Predicted genetic consequences of alternative population control strategies for North American plains bison in Yellowstone National Park

The Journal of Wildlife Management, EarlyView.
Management of bison in Yellowstone National Park under the available strategies that maintained ≥3,500 individuals (1:1 sex ratio), removed <40% of the population at a time and prioritized relatives for removal were predicted to maintain genetic variation at levels consistent with long‐term conservation (>95% of existing variation).
Shawna J. Zimmerman, Chris Geremia, Sara J. Oyler‐McCance   +2 more
wiley   +1 more source

Unraveling the pattern of the XYZ mesons

Physics Letters B, 2014
We present a plausible mechanism for the origin of the XYZ mesons in the heavy meson spectra within a standard quark-model picture. We discuss the conditions required for the existence of four-quark bound states or resonances contributing to the heavy ...
J. Vijande, A. Valcarce
doaj   +1 more source