Results 11 to 20 of about 752 (105)

Matching expert range maps with species distribution model predictions. [PDF]

open access: yesConserv Biol, 2020
Abstract Species’ range maps based on expert opinion are a critical resource for conservation planning. Expert maps are usually accompanied by species descriptions that specify sources of internal range heterogeneity, such as habitat associations, but these are rarely considered when using expert maps for analyses.
Mainali K, Hefley T, Ries L, Fagan WF.
europepmc   +2 more sources

The EM Method in a Probabilistic Wavelet-Based MRI Denoising. [PDF]

open access: yesComput Math Methods Med, 2015
Human body heat emission and others external causes can interfere in magnetic resonance image acquisition and produce noise. In this kind of images, the noise, when no signal is present, is Rayleigh distributed and its wavelet coefficients can be approximately modeled by a Gaussian distribution.
Martin-Fernandez M, Villullas S.
europepmc   +2 more sources

Morse–Radó theory for minimal surfaces

open access: yesJournal of the London Mathematical Society, Volume 108, Issue 4, Page 1669-1700, October 2023., 2023
Abstract For a class of functions (called minimal Radó functions) that arise naturally in minimal surface theory, we bound the number of interior critical points (counting multiplicity) in terms of the boundary data and the Euler characteristic of the domain of the function.
David Hoffman   +2 more
wiley   +1 more source

Purely coclosed G2‐structures on nilmanifolds

open access: yesMathematische Nachrichten, Volume 296, Issue 6, Page 2236-2257, June 2023., 2023
Abstract We classify seven‐dimensional nilpotent Lie groups, decomposable or of nilpotency step at most 4, endowed with left‐invariant purely coclosed G2‐structures. This is done by going through the list of all seven‐dimensional nilpotent Lie algebras given by Gong, providing an example of a left‐invariant 3‐form φ which is a pure coclosed G2 ...
Giovanni Bazzoni   +2 more
wiley   +1 more source

On the quotient of Milnor and Tjurina numbers for two‐dimensional isolated hypersurface singularities

open access: yesMathematische Nachrichten, Volume 295, Issue 7, Page 1254-1263, July 2022., 2022
Abstract In this paper we give a complete answer to a question posed by Dimca and Greuel about the quotient of the Milnor and Tjurina numbers of a plane curve singularity. We put this question into a general framework of the study of the difference of Milnor and Tjurina numbers for isolated complete intersection singularities showing its connection ...
Patricio Almirón
wiley   +1 more source

Prophets and Loss: How “Soft Facts” on Social Media Influenced the Brexit Campaign and Social Reactions to the Murder of Jo Cox MP

open access: yesPolicy &Internet, Volume 12, Issue 2, Page 144-164, June 2020., 2020
This article examines “soft facts” about security issues in the 2016 Brexit referendum campaign. Soft facts arise when information provenance is uncertain, and are forms of malleable and contingent knowledge, such as rumors, conspiracy theories, and propaganda.
Diyana Dobreva   +2 more
wiley   +1 more source

Complete Non-Orientable Minimal Surfaces in ℝ3 and Asymptotic Behavior

open access: yesAnalysis and Geometry in Metric Spaces, 2014
In this paperwe give new existence results for complete non-orientable minimal surfaces in ℝ3 with prescribed topology and asymptotic ...
Alarcón Antonio, López Francisco J.
doaj   +1 more source

Topologia Híbrida Trifásica a Três Fios para Regulação de Tensão em Sistemas de Geração Baseados em Gerador de Indução Auto-excitado

open access: yesEletrônica de Potência, 2015
Este artigo propõe uma nova topologia híbrida trifásica a três fios para a regulação da amplitude das tensões de saída de sistemas de geração isolados baseados em geradores de indução autoexcitados.
Celso B. Tischer   +2 more
doaj   +1 more source

La distancia imposible entre el «cap» derridiano y la «polis» heideggeriana

open access: yesIsegoría, 2020
En este texto se desarrolla un estudio de la noción «cap» en Derrida en confrontación con el modo en que Heidegger presenta la «polis» en sus textos elaborados entre 1935 y 1943.
Pablo B. Sánchez Gómez
doaj   +1 more source

La anorexia y la bulimia a la luz del grafo del deseo de Lacan

open access: yesQuaderns de Filologia: Estudis Literaris, 2022
En este texto tratamos los problemas de alimentación a la luz de lo que en términos lacanianos se conoce como el grafo del deseo. Este data de los años 1958-59, cuando Lacan impartió su seminario sobre El deseo y su interpretación, actualmente publicado
Manuel Asensi Pérez   +1 more
doaj   +1 more source

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