Results 151 to 160 of about 915,858 (361)

Reflection algebras for sl(2) and gl(1|1) [PDF]

open access: yesarXiv, 2012
We present a generalization the G. Letzter's theory of quantum symmetric pairs of semisimple Lie algebras for the case of quantum affine algebras. We then study solutions of the reflection equation for the quantum affine algebras sl(2) and gl(1|1) and their Yangian limit for singlet (diagonal) and vector (non-diagonal) boundary conditions. We construct
arxiv  

Naturaleza y Vida

open access: yesThe Journal of Philosophy, 1944
La condición de la Vida en la Naturaleza es el problema sobre el que se erigen la Filosofía y la Ciencia. En efecto, es el punto central de encuentro de todos los esfuerzos del pensamiento sistemático, humanístico, naturalista o filosófico. El auténtico sentido de la vida resulta dudoso.
P. R., Alfred North Whitehead
openaire   +4 more sources

Drivers and potential solutions for transnational Illegal, Unreported and Unregulated fishing (IUU) in the Gulf of Honduras

open access: yesPeople and Nature, EarlyView.
Abstract The threat of Illegal, Unreported and Unregulated (IUU) fishing to global fisheries, particularly in lower‐income tropical regions, underscores the urgent need for science‐based solutions. This study explores the drivers and potential solutions to IUU fishing by Honduran fishers in the Cayman Crown reef, located within the territorial waters ...
Antonella Rivera   +5 more
wiley   +1 more source

High extinction risk of the endemic tree flora in a hyper‐diverse region of the Amazon

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The rapid global loss of biodiversity, especially in the Neotropics, underscores the need to understand how deforestation impacts endemic plant species' extinction risk and conservation status. Due to limited ranges and habitat specialization, endemics are particularly Vulnerable.
Juan Ernesto Guevara‐Andino   +2 more
wiley   +1 more source

The importance of integrating herbarium records into conservation plans: a case study on Honduran ferns and lycophytes

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Herbarium collections are powerful, yet underutilized, tools for global biodiversity conservation and protected area management. By integrating digitized herbarium records with existing biodiversity data, previously unknown plant species were uncovered, exposing critical gaps in conservation knowledge.
Sven P. Batke   +6 more
wiley   +1 more source

Synergistic efforts in specimen digitisation, curation and cataloguing of Brazil's megadiverse flora and funga

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The advancement of digital technologies has brought a rapid global information exchange, impacting all areas of our lives. This also applies to science. Knowledge, conservation and scientific innovation on global biodiversity are being strengthened and disseminated at unprecedented scales.
Ana Flávia Alves Versiane   +9 more
wiley   +1 more source

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