33 research outputs found
Kaon properties in (proto)neutron stars
The modification on kaon and antikaon properties of in the interior of
(proto-)neutron stars is investigated using a chiral SU(3) model. The
parameters of the model are fitted to nuclear matter saturation properties,
baryon octet vacuum masses, hyperon optical potentials and low energy a
kaon-nucleon scattering lengths. We study the kaon/antikaon medium modification
and explore the possibility of antikaon condensation in (proto-)neutron star
matter at zero as well as finite temperature/entropy and neutrino content. The
effect of hyperons on kaon and antikaon optical potentials is also investigated
at different stages of the neutron star evolution.Comment: 17 pages including 4 figure
Redisposition of acremonium-like fungi in Hypocreales
Acremonium is acknowledged as a highly ubiquitous genus including saprobic, parasitic, or endophytic fungi that inhabit a variety of environments.
Species of this genus are extensively exploited in industrial, commercial, pharmaceutical, and biocontrol applications, and proved to be a rich source of
novel and bioactive secondary metabolites. Acremonium has been recognised as a taxonomically difficult group of ascomycetes, due to the reduced and
high plasticity of morphological characters, wide ecological distribution and substrate range. Recent advances in molecular phylogenies, revealed that
Acremonium is highly polyphyletic and members of Acremonium s. lat. belong to at least three distinct orders of Sordariomycetes, of which numerous
orders, families and genera with acremonium-like morphs remain undefined. To infer the phylogenetic relationships and establish a natural classification
for acremonium-like taxa, systematic analyses were conducted based on a large number of cultures with a global distribution and varied substrates. A total
of 633 cultures with acremonium-like morphology, including 261 ex-type cultures from 89 countries and a variety of substrates including soil, plants, fungi,
humans, insects, air, and water were examined. An overview phylogenetic tree based on three loci (ITS, LSU, rpb2) was generated to delimit the orders
and families. Separate trees based on a combined analysis of four loci (ITS, LSU, rpb2, tef-1α) were used to delimit species at generic and family levels.
Combined with the morphological features, host associations and ecological analyses, acremonium-like species evaluated in the present study are currently
assigned to 63 genera, and 14 families in Cephalothecales, Glomerellales and Hypocreales, mainly in the families Bionectriaceae, Plectosphaerellaceae
and Sarocladiaceae and five new hypocrealean families, namely Chrysonectriaceae, Neoacremoniaceae, Nothoacremoniaceae, Pseudoniessliaceae and
Valsonectriaceae. Among them, 17 new genera and 63 new combinations are proposed, with descriptions of 65 new species. Furthermore, one epitype and
one neotype are designated to stabilise the taxonomy and use of older names. Results of this study demonstrated that most species of Acremonium s. lat.
grouped in genera of Bionectriaceae, including the type A. alternatum. A phylogenetic backbone tree is provided for Bionectriaceae, in which 183 species
are recognised and 39 well-supported genera are resolved, including 10 new genera. Additionally, rpb2 and tef-1α are proposed as potential DNA barcodes
for the identification of taxa in Bionectriaceae.The China Scholarship Council, partially supported by Chinese Academy of Sciences, the Tromsø Research Foundation, the European Union’s Horizon 2020 research and innovation program (RISE) under the Marie Skłodowska- Curie grant and the Dutch NWO Roadmap grant.http://www.studiesinmycology.orgam2024BiochemistryForestry and Agricultural Biotechnology Institute (FABI)GeneticsMicrobiology and Plant PathologyNon
Práctica artística y políticas culturales. Algunas propuestas desde la Universidad
Various reflections on contemporary artistic and cultural practices, and the means to act from cultural management to achieve greater impact on the national context are presented. Experts in creating, thinking and cultural action analyze tensions in the field, with a transverse dimension, interdisciplinary, in order to develop proposals for new directions in the design of cultural activity carried out by the University, their cultural and library services.
Se presentan diversas reflexiones sobre las prácticas artísticas y culturales contemporáneas y sobre los medios de actuar desde la gestión cultural para conseguir una mayor incidencia en el contexto ciudadano. Expertos en la creación, el pensamiento y la acción cultural, analizan las tensiones que atraviesan este campo, con una dimensión transversal, interdisciplinar, con el objeto de elaborar propuestas que permitan nuevas orientaciones en la concepción de la actividad cultural a desarrollar desde la Universidad,sus servicios culturales y bibliotecario