Results 61 to 70 of about 48,991 (269)

Interactive effects of microplastics and arbuscular mycorrhizal fungi on grassland communities

PLANTS, PEOPLE, PLANET, EarlyView.
Grassland plant communities contribute significantly to global biodiversity but face numerous man‐made pressures which may interfere with their ecological functions. One such pressure receiving increasing scientific, political, and public attention is microplastic pollution.
Benedikt Speißer, Yanjie Liu, Mark van Kleunen   +2 more
wiley   +1 more source

Chemical diversity and phylogenetic insights into Hawaiian ʻākia (Wikstroemia) species used in traditional fishing practices

PLANTS, PEOPLE, PLANET, EarlyView.
Traditional fishing with plant‐based piscicides is a global practice in decline, facing increasing restrictions. We investigated the chemical diversity of endemic Wikstroemia species historically used to stun or poison fish in Hawaiʻi. Using 1‐H‐NMR, principal component analysis, targeted HPLC, and target‐capture sequencing, we characterized compounds ...
Louise Winther, Isaac Lichter‐Marck, Louise Kjaerulff, David Lorence, Uma Nagendra, Mike Opgenorth, Sverre J. Schou, Kenneth R. Wood, Felipe Zapata, Dan Staerk, Nina Rønsted   +10 more
wiley   +1 more source

The light scalar mesons as tetraquarks

Physics Letters B, 2016
We present a numerical solution of the four-quark Bethe–Salpeter equation for ground-state scalar tetraquarks with JPC=0++. We find that the four-body equation dynamically generates pseudoscalar-meson poles in the Bethe–Salpeter amplitude.
Gernot Eichmann, Christian S. Fischer, Walter Heupel   +2 more
doaj   +1 more source

Heavy quark physics on the lattice with improved nonrelativistic actions [PDF]

, 2010
Hadrons containing heavy quarks, in particular b quarks, play an important role in high energy physics. Measurements of their electroweak interactions are used to test the Standard Model and search for new physics.

core   +2 more sources

An extinction‐emergency metacollection: Maximising future recovery options for Rhodomyrtus psidioides (Myrtaceae), threatened by Myrtle Rust

PLANTS, PEOPLE, PLANET, EarlyView.
A challenge for wild plant conservation is the rising incidence of plant pathogens that are difficult to interdict, contain and manage. Invasive, fast‐moving, broad‐spectrum pathogens impose societal costs through losses of intrinsically valuable wild biodiversity, ecosystem function, current and potential genetic and biological assets, culturally ...
Robert O. Makinson, Veronica Viler, Amelia J. Martyn Yenson, Craig Stehn, Fiona R. Giblin, Catherine A. Offord, Philippa Walsh, Chantelle A. T. Doyle   +7 more
wiley   +1 more source

Thermal energy of a charm-meson molecule in a pion gas

Journal of High Energy Physics
The thermal corrections to the propagator of a loosely bound charm-meson molecule in a pion gas are calculated to next-to-leading order in the heavy-meson expansion using a zero-range effective field theory.
Eric Braaten, Li-Ping He, Kevin Ingles, Jun Jiang   +3 more
doaj   +1 more source

Meson turbulence at quark deconfinement from AdS/CFT

Nuclear Physics B, 2015
Based on the QCD string picture at confining phase, we conjecture that the deconfinement transition always accompanies a condensation of higher meson resonances with a power-law behavior, “meson turbulence”.
Koji Hashimoto, Shunichiro Kinoshita, Keiju Murata, Takashi Oka   +3 more
doaj   +1 more source

Early warning signals of common vole population growth in continental Mediterranean farmlands recurrently affected by outbreaks

Pest Management Science, EarlyView.
Rodent outbreaks have significant socio‐economic impacts worldwide, and anticipation is crucial for timely management decisions. We combined rainfall and periodicity data to provide an early warning signal of vole population growth in Mediterranean farmlands, a year in advance of a peak.
François Mougeot, Xavier Lambin, Beatriz Arroyo, Juan‐José Luque‐Larena   +3 more
wiley   +1 more source

Dilepton és ritka részecskék keltése nehézion reakciókban = Dilepton and strange particle production in heavy ion reactions [PDF]

, 2009
Dileptonkeltést számoltunk HADES energiákon különböző modellekben. Egy egyszerű, de nagyon pontosan fittelt modellben, IQMD-ben, azt találtuk, hogy le tudjuk írni a HADES adatokat vákuum tulajdonságú vektormezonokkal, s nem nagyon van lehetöség ...
Wolf, György, Zétényi, Miklós
core   +1 more source

In-medium properties of mesons

EPJ Web of Conferences, 2017
In the project B.4, the modification of meson properties (mass, width) in a nuclear medium has been studied in photoproduction of mesons off nuclear targets.
Metag Volker, Nanova Mariana, Brinkmann Kai-Thomas   +2 more
doaj   +1 more source