Results 111 to 120 of about 186,516 (304)
An Overlooked Habitat‐Dependent Link Between Metabolism and Water Loss in Reptiles
Integrative Zoology, EarlyView.We measured the gas exchange of six lizard and six snake species, under high and low air humidity, and two intriguing patterns emerged. First, although desert species lose less water via evaporation than similar‐sized mesic species under similar conditions, water loss is virtually the same when each is exposed to its natural conditions.
Shahar Dubiner, Shai Meiri, Eran Levin
wiley +1 more source
Results in Physics, 2018 We investigate the Bethe-Salpeter-like amplitude in 3 + 1 dimensions. This involves a system comprising a quark and antiquark combined by gauge fields to satisfy gauge invariance. We derive the equation of motion for this system and construct a series of
Teruo Kurai
doaj +1 more source
Meson Reactions in Deuterium and Meson-Nucleon Scattering [PDF]
Progress of Theoretical Physics, 1952 Various meson reactions in deuterium are investigated on the basis of impulse approximation. Then one obtains the close connection between deuteron data and nucleon data, which is shown to be useful to get an insight into the spin- and charge-dependences of meson-nucleon interaction.
openaire +4 more sources
Integrative Zoology, EarlyView.Soil drought imposes moderate, temporary costs on a strictly fossorial amphisbaenian reptile. However, these animals seem to cope with, at least, moderately short droughts thanks to their peculiar adaptations to living in an underground environment. ABSTRACT The physiological traits of animals can be strongly influenced by climatic fluctuations, and ...
José Martín +5 more
wiley +1 more source
The Light and Heavy Scalars in Unitarized Coupled Channel and Lagrangian Approaches
, 2003 Using ideas underlying the flavour-blind "Nijmegen Unitarised Meson Model" we try to understand on the basis of a system of Schroedinger equations with one meson-meson and one (spinless) quark-antiquark channel coupled by a simple delta-shell transition ...
Kleefeld, F.
core +2 more sources
Revealing transversity GPDs through the photoproduction of a photon and a ρ meson
EPJ Web of Conferences, 2016 Photoproduction of a pair of particles with large invariant mass is a natural extension of collinear QCD factorization theorems which have been much studied for deeply virtual Compton scattering and deeply virtual meson production.
Boussarie R. +3 more
doaj +1 more source
Decaimiento no leptónico del mesón Bc considerando mesones excitados radialmente en el estado final
Iteckne, 2013 En el presente trabajo se muestra parte del estudio del decaimiento no leptónico del mesón Bc, considerado un mesón pseudoescalar o vectorial excitado radialmente (n = 2) en el estado final, se asume la hipótesis de factorización y utiliza el modelo de ...
Juan Carlos Barrios Ávila +2 more
doaj +1 more source
Persistence and dynamic of forest snails in the Western Carpathians over the last 40 thousand years
Boreas, EarlyView.The glacial/interglacial cycles have shaped the landscape of temperate Europe for the past 2.5 million years, with open landscapes prevailing during the glacial and forested landscapes during the interglacial periods. However, the survival and recolonization strategies of temperate forest species during glacial phases remain poorly understood and hotly
Lucie Juřičková +5 more
wiley +1 more source
Reversibility of sex changes in the plant kingdom: more important than we thought?
Biological Reviews, EarlyView.ABSTRACT Compared to animals, plants show a wide range of reproductive strategies with different degrees of sex separation (e.g. dioecy, monoecy, hermaphroditism). While sex expression was previously thought to be genetically determined and fixed in plants, accumulating evidence suggests that sex expression can change reversibly even within one ...
Iris Sammarco +3 more
wiley +1 more source
Information on the structure of the rho meson from the pion form-factor
, 2009 The electromagnetic pion form-factor is calculated in a Bethe-Salpeter approach which accounts for pion rescattering. In the scattering kernel the pion-pion contact interaction from lowest-order chiral perturbation theory is considered together with an ...
F. Klingl, S. Leupold
core +1 more source