Results 61 to 70 of about 75,496 (347)
The Cambrian of the Iberian Peninsula : an overview [PDF]
Geologica Acta, 2003 Ciencias de la ...
Gozalo Gutiérrez, R. +4 more
openaire +7 more sources
Alg. Comb., 1(2):173-224, 2018, 2016 We introduce permutrees, a unified model for permutations, binary trees, Cambrian trees and binary sequences. On the combinatorial side, we study the rotation lattices on permutrees and their lattice homomorphisms, unifying the weak order, Tamari, Cambrian and boolean lattices and the classical maps between them.
arxiv +1 more source
Primary aragonite and high-Mg calcite in the late Cambrian (Furongian) : Potential evidence from marine carbonates in Oman [PDF]
, 2016 Acknowledgements Fieldwork and sampling was funded by Petroleum Development Oman during S. Al Marjibis's Ph.D. Their help is gratefully acknowledged. We also thank colleagues at the University of Aberdeen, Julie Dougans (SUERC) for assisting with stable ...
Brasier, Alexander T. +2 more
core +1 more source
Brick polytopes, lattice quotients, and Hopf algebras [PDF]
, 2017 This paper is motivated by the interplay between the Tamari lattice, J.-L. Loday's realization of the associahedron, and J.-L. Loday and M. Ronco's Hopf algebra on binary trees.
Pilaud, Vincent
core +3 more sources
Ecological Applications, Volume 32, Issue 8, December 2022., 2022 Abstract Large, citizen‐science species databases are powerful resources for predictive species distribution modeling (SDM), yet they are often subject to sampling bias. Many methods have been proposed to correct for this, but there exists little consensus as to which is most effective, not least because the true value of model predictions is hard to ...
Victoria Nolan +3 more
wiley +1 more source
Controls on gut phosphatisation : the trilobites from the Weeks Formation Lagerstätte (Cambrian; Utah) [PDF]
, 2012 Despite being internal organs, digestive structures are frequently preserved in Cambrian Lagerstätten. However, the reasons for their fossilisation and their biological implications remain to be thoroughly explored.
AA Öpik +72 more
core +3 more sources
The Cambrian Hopf Algebra [PDF]
Discrete Mathematics & Theoretical Computer Science, 2015 Cambrian trees are oriented and labeled trees which fulfill local conditions around each node generalizing the conditions for classical binary search trees. Based on the bijective correspondence between signed permutations and leveled Cambrian trees, we define the Cambrian Hopf algebra generalizing J.-L. Loday and M. Ronco’s algebra on binary trees. We
Grégory Chatel +2 more
openaire +5 more sources
A Cambrian–Ordovician Terrestrialization of Arachnids [PDF]
Frontiers in Genetics, 2020 Understanding the temporal context of terrestrialization in chelicerates depends on whether terrestrial groups, the traditional Arachnida, have a single origin and whether or not horseshoe crabs are primitively or secondarily marine. Molecular dating on a phylogenomic tree that recovers arachnid monophyly, constrained by 27 rigorously vetted fossil ...
Jesus Lozano-Fernandez +8 more
openaire +7 more sources
Learner-Educator Co-creation: A Case for Enhancing Authentic Assessment in Nursing Education
Canadian Journal for the Scholarship of Teaching and LearningAuthentic assessments support learner needs and meaningful learning by requiring students to use knowledge in a way that develops their competence to solve problems in professional contexts.
Laura A. Killam +2 more
doaj +1 more source