Results 151 to 160 of about 269,743 (379)

Lagrangian with off-shell vertices and field redefinitions

, 1997
Meson exchange diagrams following from a lagrangian with off-shell meson-nucleon couplings are compared with those generated from conventional dynamics.
Adam, J., Gross, Franz, Van Orden, J. W.
core   +2 more sources

Meson Masses and Energetics of Meson Decay [PDF]

American Journal of Physics, 1952
A series of measurements of the π- and μ-meson masses and their decay energies is reviewed. Recent mass measurements made at the University of California Radiation Laboratory have employed an improved method in which the ratio of the π-meson mass to that of the proton and the ratio of the μ-meson mass to that of the π-meson were determined by measuring
openaire   +2 more sources

Thinking the World: Gregory of Nyssa on the Definitive Calling of Humanity

International Journal of Systematic Theology, EarlyView.
Abstract In this response essay to John Behr’s Gregory of Nyssa: On the Human Image of God, Rowan Williams highlights Gregory’s exposition of the complex account of nous and its meaning in relation to sensory embodiment. Nous, in Gregory’s treatise, is the presence of unified divine activity in the diversity of creation.
Rowan Williams
wiley   +1 more source

Freshwater fishes of the Waterberg aquatic ecoregion, South Africa: Diversity, taxonomic conflicts and conservation concerns

Journal of Fish Biology, EarlyView.
Abstract Southern Africa is a region denoted by both high levels of fish diversity, some of it cryptic and unrecognised by current taxonomy, and severely threatened freshwater ecosystems. The Waterberg, a key aquatic ecoregion of the greater Limpopo River basin in South Africa, represents an area with high terrestrial conservation value but is lacking ...
Darragh J. Woodford, Mandla Magoro, Wilbert T. Kadye, Martinus Scheepers, Yonela Sithole, Tadiwa I. Mutizwa, Tholoana Ntokoane, Albert Chakona   +7 more
wiley   +1 more source

Branching ratios of Bc Meson Decaying to Pseudoscalar and Axial-Vector Mesons

, 2009
We study Cabibbo-Kobayashi-Maskawa (CKM) favored weak decays of Bc mesons in the Isgur-Scora-Grinstein-Wise (ISGW) quark model. We present a detailed analysis of the Bc meson decaying to a pseudoscalar meson (P) and an axial-vector meson (A).
Ball P, Brambilla N, Castro G L, Corcoran M D (CDF Collaboration), Dhir R, Gershtein S S, Ivanov M A, Kiselev V V, Kiselev V V, Neelesh Sharma, Neubert M, Nobes M A, R C Verma, Rohit Dhir, Sun J F   +14 more
core   +1 more source

Integrative taxonomy supports DNA barcoding in revealing an abundant cryptic species in the United States Coastal Plain

Journal of Systematics and Evolution, EarlyView.
We present the most densely sampled phylogeny of Carex section Lupulinae to date (107 specimens) and describe herein a new cryptic species for science from the southern United States, which is locally abundant and found in well‐explored and densely populated areas. Combining DNA sequences with morphometric data obtained from 299 samples, we Demonstrate
Étienne Lacroix‐Carignan, Julian R. Starr, Robert F. C. Naczi, Eran S. Kilpatrick, Étienne Léveillé‐Bourret   +4 more
wiley   +1 more source

The promise of digital herbarium specimens in large‐scale phenology research

New Phytologist, EarlyView.
Summary The online mobilization of herbaria has made tens of millions of specimens digitally available, revolutionizing investigations of phenology and plant responses to climate change. We identify two main themes associated with this growing body of research and highlight a selection of recent publications exemplifying: investigating phenology at ...
Natalie Iwanycki Ahlstrand, Richard B. Primack, Matthew W. Austin, Zoe A. Panchen, Christine Römermann, Abraham J. Miller‐Rushing   +5 more
wiley   +1 more source

Specimen‐tailored ‘lived’ climate reveals precipitation onset and amount best predict specimen phenology, but only weakly predict estimated reproduction across a clade

New Phytologist, EarlyView.
Summary Herbarium specimens are widely distributed in space and time, thereby capturing diverse conditions. We reconstructed specimen ‘lived’ climate from knowledge of germination cues and collection dates for 14 annual species in the Streptanthus (s.l.) clade (Brassicaceae) to ask: which climate attributes best explain specimen phenological stage and ...
Megan Bontrager, Samantha J. Worthy, Laura Leventhal, Julin N. Maloof, Jennifer R. Gremer, Johanna Schmitt, Sharon Y. Strauss   +6 more
wiley   +1 more source

Highly excited mesons, linear Regge trajectories, and the pattern of the chiral symmetry realization [PDF]

, 2008
Mikhail Shifman, A.I. Vainshtein
openalex   +1 more source

Leaf litter and fine roots have distinct effects on particulate and mineral‐associated soil organic matter in a tree common garden

New Phytologist, EarlyView.
Summary Soil organic matter (SOM) is primarily derived from leaf and root inputs, but the relative contributions of each are difficult to study without the use of isotopic tracers. Furthermore, associations between trees and mycorrhizal fungi can influence the production and persistence of SOM.
Ashley Lang, Rachel A. King, Jamie Pullen, Catherine Fahey, John D. Parker, Richard P. Phillips   +5 more
wiley   +1 more source