Results 41 to 50 of about 2,574,979 (356)

‘The Beckoning Obstruction’: On the theme of scarcity in the poetry of Peter Larkin

open access: yesJournal of British and Irish Innovative Poetry, 2020
Although he writes almost exclusively about trees and one of his main themes is scarcity, Peter Larkin should not be considered only an ecological nature poet.
John Milbank
doaj   +2 more sources

Categorizing Ideas about Trees: A Tree of Trees

open access: yesPLoS ONE, 2013
The aim of this study is to explore whether matrices and MP trees used to produce systematic categories of organisms could be useful to produce categories of ideas in history of science. We study the history of the use of trees in systematics to represent the diversity of life from 1766 to 1991.
Marie Fisler, Guillaume Lecointre
openaire   +4 more sources

z-Tree: Zurich toolbox for ready-made economic experiments

open access: yes, 1999
z-Tree (Zurich Toolbox for Ready-made Economic Experiments) is a software for developing and conducting economic experiments. The software is stable and allows programming almost any kind of experiments in a short time.
U. Fischbacher
semanticscholar   +1 more source

Tree contractions and evolutionary trees [PDF]

open access: yesSIAM Journal on Computing, 1997
An evolutionary tree is a rooted tree where each internal vertex has at least two children and where the leaves are labeled with distinct symbols representing species. Evolutionary trees are useful for modeling the evolutionary history of species. An agreement subtree of two evolutionary trees is an evolutionary tree which is also a topological subtree
openaire   +4 more sources

Seven largest trees pack [PDF]

open access: yesOpuscula Mathematica
The Tree Packing Conjecture (TPC) by Gyárfás states that any set of trees \(T_2,\dots,T_{n-1}, T_n\) such that \(T_i\) has \(i\) vertices pack into \(K_n\). The conjecture is true for bounded degree trees, but in general, it is widely open.
Maciej Cisiński, Andrzej Żak
doaj   +1 more source

Clustering Analysis of Internal and External Factors Affecting Post-Pandemic Study Duration in XYZ Educational Institution Using the Orange Application

open access: yesJurnal Teknologi Informasi dan Pendidikan, 2023
The COVID-19 pandemic has had a significant impact on various economic sectors in Indonesia, including the education system. Consequently, the educational landscape has undergone substantial changes, such as the shift from traditional classroom ...
Imelda Muluk
doaj   +1 more source

ASTRAL-III: polynomial time species tree reconstruction from partially resolved gene trees

open access: yesBMC Bioinformatics, 2018
Evolutionary histories can be discordant across the genome, and such discordances need to be considered in reconstructing the species phylogeny. ASTRAL is one of the leading methods for inferring species trees from gene trees while accounting for gene ...
Chao Zhang   +3 more
semanticscholar   +1 more source

Deep Tree Net-Vector of Locally Aggregated Descriptor (VLAD) Model

open access: yesIEEE Access, 2019
In this work, we combined both a tree and a NetVLAD (vector of locally aggregated descriptors) in order to design new deep model. In developing this model, we studied the impact of tree hyperparameters and found that branch factors had major effects on ...
Abduljawad A. Amory   +2 more
doaj   +1 more source

Interactive Tree of Life (iTOL) v6: recent updates to the phylogenetic tree display and annotation tool

open access: yesNucleic Acids Research
The Interactive Tree Of Life (https://itol.embl.de) is an online tool for the management, display, annotation and manipulation of phylogenetic and other trees. It is freely available and open to everyone.
Ivica Letunic, P. Bork
semanticscholar   +1 more source

Trees within trees II: Nested fragmentations [PDF]

open access: yesAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2020
Similarly as in (Blancas et al. 2018) where nested coalescent processes are studied, we generalize the definition of partition-valued homogeneous Markov fragmentation processes to the setting of nested partitions, i.e. pairs of partitions $( , )$ where $ $ is finer than $ $.
openaire   +3 more sources

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