Results 11 to 20 of about 223,621 (364)

Observation of an exotic narrow doubly charmed tetraquark [PDF]

open access: yesNature Physics, 2021
Conventional, hadronic matter consists of baryons and mesons made of three quarks and a quark–antiquark pair, respectively1,2. Here, we report the observation of a hadronic state containing four quarks in the Large Hadron Collider beauty experiment. This
L. C. R. Aaij   +499 more
semanticscholar   +1 more source

Mechanism of exotic density-wave and beyond-Migdal unconventional superconductivity in kagome metal AV3Sb5 (A = K, Rb, Cs) [PDF]

open access: yesScience Advances, 2021
Exotic quantum phase transitions in metals, such as the electronic nematic state, have been discovered one after another and found to be universal now.
R. Tazai   +3 more
semanticscholar   +1 more source

Four-quark exotic mesons [PDF]

open access: yes, 2020
We review our investigations devoted to the analysis of the resonances $ Z_{c}(3900)$, $Z_{c}(4430)$, $Z_{c}(4100)$, $X(4140)$, $X(4274)$, $a_1(1420)$ , $Y(4660)$, $X(2100)$, $X(2239)$ and $Y(2175)$ discovered in various processes by Belle, BaBar, BESIII,
S. Agaev, K. Azizi, H. Sundu
semanticscholar   +1 more source

Global determinants of prey naiveté to exotic predators

open access: yesProceedings of the Royal Society B, 2020
Prey naiveté—the failure of prey to recognize novel predators as threats—is thought to exacerbate the impact that exotic predators exert on prey populations.
Andrea Anton   +3 more
semanticscholar   +1 more source

Sobre la presencia de cactáceas naturalizadas en la costa meridional de Cataluña

open access: yesAnales del Jardín Botánico de Madrid, 2004
The authors report on the finding of eight new alien cacti naturalised in the Baix Camp (Tarragona). Three of these are new records for Europe, two are new records for Spain and one is a first record for Tarragona province.
Mario Sanz-Elorza   +2 more
doaj   +1 more source

A National Catalogue of Viruses Associated with Indigenous Species Reveals High-Throughput Sequencing as a Driver of Indigenous Virus Discovery

open access: yesViruses, 2022
Viruses are important constituents of ecosystems, with the capacity to alter host phenotype and performance. However, virus discovery cued by disease symptoms overlooks latent or beneficial viruses, which are best detected using targeted virus detection ...
Merlyn Robson   +4 more
doaj   +1 more source

Further naturalised Cactaceae in northeastern Iberian Peninsula

open access: yesAnales del Jardín Botánico de Madrid, 2006
During the floristic work carried out in 2004 in the Baix Camp region of Tarragona (NE Spain) we found four new species of alien naturalised Cactaceae. Of these, three are reported for the second time from Europe and the other is new to Catalonia region.
Mario Sanz-Elorza   +2 more
doaj   +1 more source

The frugivory network properties of a simplified ecosystem: Birds and plants in a Neotropical periurban park

open access: yesEcology and Evolution, 2020
Frugivory networks exhibit a set of properties characterized by a number of network theory‐derived metrics. Their structures often form deterministic patterns that can be explained by the functional roles of interacting species.
Gabriela I. Salazar‐Rivera   +5 more
doaj   +1 more source

Exotic Coactions [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 2016
AbstractIf a locally compact group G acts on a C*-algebra B, we have both full and reduced crossed products and each has a coaction of G. We investigate ‘exotic’ coactions in between the two, which are determined by certain ideals E of the Fourier–Stieltjes algebra B(G); an approach that is inspired by recent work of Brown and Guentner on new C*-group ...
Landstad, Magnus B.   +2 more
openaire   +4 more sources

Exotic garden plants partly substitute for native plants as resources for pollinators when native plants become seasonally scarce

open access: yesOecologia, 2020
Urban green spaces such as gardens often consist of native and exotic plant species, which provide pollen and nectar for flower-visiting insects. Although some exotic plants are readily visited by pollinators, it is unknown if and at which time of the ...
Michael Staab   +2 more
semanticscholar   +1 more source

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