Results 51 to 60 of about 798,636 (312)
Equidimensional isometric maps
, 2014 In Gromov's treatise Partial Differential Relations (volume 9 of Ergebnisse der Mathematik und ihrer Grenzgebiete (3), 1986), a continuous map between Riemannian manifolds is called isometric if it preserves the length of rectifiable curves. In this note
Kirchheim, Bernd +2 more
core +1 more source
Geographic variation in walking activity in the red flour beetle Tribolium castaneum
Population Ecology, EarlyView.This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley +1 more source
occumb: An R package for site occupancy modeling of eDNA metabarcoding data
Population Ecology, EarlyView.This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley +1 more source
Irreducible restrictions of closed mappings
Topology and its Applications, 1998 By a result of \textit{N. Lashnev} [Sov. Math., Dokl. 6, 1504-1506 (1966); translation from Dokl. Akad. Nauk SSSR 165, 756-758 (1965; Zbl 0145.19603)], every continuous, closed surjection \(f:X\to Y\), with \(X\) paracompact and \(Y\) Fréchet, is inductively irreducible (i.e., there exists a closed \(X'\subset X\) such that \(f(X')=Y\) and \(f| X'\) is
openaire +2 more sources
The Torelli map restricted to the hyperelliptic locus [PDF]
Transactions of the American Mathematical Society, Series B, 2021 Let g ≥ 2 g \geq 2 and let the Torelli map denote the map sending a genus g g curve to its principally polarized Jacobian. We show that the restriction of the Torelli map to the hyperelliptic locus is an immersion in characteristic not 2 2 . In characteristic 2 2
openaire +3 more sources
Population Ecology, EarlyView.We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva +6 more
wiley +1 more source
A Remark on the Restriction Map in Field Formation [PDF]
Proceedings of the American Mathematical Society, 1976 In this note we point out that in a field formation ( G , { G F } , A ) (G,\{ {G_F}\} ,A) , if h 2 ( K / F ) =
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Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders
Population Ecology, EarlyView.We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa +2 more
wiley +1 more source
BiLipschitz Decomposition of Lipschitz Maps between Carnot Groups
Analysis and Geometry in Metric Spaces, 2015 Let f : G → H be a Lipschitz map between two Carnot groups. We show that if B is a ball of G, then there exists a subset Z ⊂ B, whose image in H under f has small Hausdorff content, such that B\Z can be decomposed into a controlled number of pieces, the ...
Li Sean
doaj +1 more source
AGORA: Assembly Guided by Optical Restriction Alignment
BMC Bioinformatics, 2012 Background Genome assembly is difficult due to repeated sequences within the genome, which create ambiguities and cause the final assembly to be broken up into many separate sequences (contigs).
Lin Henry C +6 more
doaj +1 more source