Results 161 to 170 of about 7,025 (296)

Ecological scale mediates nonlinear relationships of animal nutrient excretion with dissolved organic matter

open access: yesJournal of Animal Ecology, EarlyView.
We show that nutrient excretion by vertebrates and invertebrates varies nonlinearly with dissolved organic matter concentration and composition and by taxonomic rank, with stronger patterns at the individual compared to the community level. Our findings highlight the importance of examining animal‐mediated nutrient cycling across taxa and ecological ...
Sandra Klemet‐N'Guessan   +3 more
wiley   +1 more source

All order merging of high energy and soft collinear resummation

open access: yesSciPost Physics Proceedings
We present a method of merging the exclusive LO-matched high energy resummation of High Energy Jets (HEJ) with the parton shower of PYTHIA which preserves the accuracy of the LO cross sections and the logarithmic accuracy of both resummation schemes ...
Jeppe R. Andersen, Hitham Hassan, Sebastian Jaskiewicz
doaj   +1 more source

No effect of short‐term exposure to ocean acidification on individual‐level variation in behaviour and susceptibility to predation in a Great Barrier Reef damselfish

open access: yesJournal of Animal Ecology, EarlyView.
This study shows that projected ocean acidification does not alter behaviour or predation risk in coral reef fish, challenging earlier assumptions. By quantifying consistent individual‐level behavioural differences and relating individual traits to survival during a live‐predation trial, it also provides evidence for a boldness–predation trade‐off in a
Dominique G. Roche   +5 more
wiley   +1 more source

Hard-thermal-loop QCD trace anomaly

open access: yesOpen Physics, 2012
Su Nan
doaj   +1 more source

A reappraisal of the Middle to Later Stone Age prehistory of Morocco Réévaluer la préhistoire du Maroc, du Middle Stone Age au Later Stone Age

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton   +3 more
wiley   +1 more source

Soft Gluon Resummation in Heavy Flavour Production [PDF]

open access: yes, 1996
I discuss the effect of resummation of soft gluons in hadronic production of high mass systems, and in particular in heavy flavour production. I show that in widely used $x$-space resummation formulae, spurious terms that grow factorially in the order of
Nason, Paolo
core  

Borel resummation of transverse momentum distributions

open access: yes, 2008
We present a new prescription for the resummation of contributions due to soft gluon emission to the trasverse momentum distribution of processes such as Drell-Yan production in hadronic collisions.
Bonvini, Marco   +5 more
core   +1 more source

Critical Permeability from Resummation

open access: yesAxioms
Special calculation methods are presented for critical indices and amplitudes for the permeability of thin wavy channels dependent on the waviness. The effective permeability and wetted perimeter of the two-dimensional random percolating media are considered as well.
openaire   +2 more sources

The Early Upper Palaeolithic in British caves: problems and potential Le Paléolithique supérieur ancien dans les grottes de Grande‐Bretagne : problèmes et potentiels

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Recent years have seen landmark progress in our understanding of early Homo sapiens occupation of Europe, owing to new excavations and the application of new analytical methods. Research on British sites, however, continues to lag. This is because of limitations inherent in existing cave collections, and limited options for new fieldwork at known sites.
Robert Dinnis
wiley   +1 more source

Perturbative resummation of gluon radiation for top-quark production [PDF]

open access: yes, 1995
We present a calculation of the total cross section for top quark production based on a new perturbative resummation of gluon radiative corrections to the basic QCD subprocesses.
Berger, E L   +3 more
core  

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