Results 61 to 70 of about 7,930,152 (319)
Publicacions Matemàtiques, 1989 When localizing the semidirect product of two groups, the effect on the factors is made explicit. As an application in Topology, we show that the loop space of a based connected CW-complex is a P-local group, up to homotopy, if and only if π1X and the free homotopy groups [S k-1, ΩX], k ≥ 2, are P-local.
openaire +6 more sources
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
, 2000 A group homomorphism eta:A-> H is called a localization of A if every homomorphism phi:A-> H can be `extended uniquely' to a homomorphism Phi:H-> H in the sense that Phi eta = phi. This categorical concepts, obviously not depending on the notion of groups, extends classical localizations as known for rings and modules.
Göbel, Rüdiger, Shelah, Saharon
openaire +2 more sources
The Astronomical Journal, 2000 It is concluded that faint members found in the vicinities of compact groups (CGs) are gravitationally bound with corresponding groups. All members of CGs, faint and bright, move preferentially in the direction of the elongation of the group. We suppose that the number of faint members may be much larger than previously assumed. These two circumstances
V. H. Chavushyan, Hrant M. Tovmassian
openaire +2 more sources
Making tau amyloid models in vitro: a crucial and underestimated challenge
FEBS Letters, EarlyView.This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley +1 more source
The Local Group: The Ultimate Deep Field
, 2016 Near-field cosmology -- using detailed observations of the Local Group and its environs to study wide-ranging questions in galaxy formation and dark matter physics -- has become a mature and rich field over the past decade.
Boylan-Kolchin, Michael +3 more
core +2 more sources
Localization for nonabelian group actions
Topology, 1995 Suppose $X$ is a compact symplectic manifold acted on by a compact Lie group $K$ (which may be nonabelian) in a Hamiltonian fashion, with moment map $ : X \to {\rm Lie}(K)^*$ and Marsden-Weinstein reduction $\xred = ^{-1}(0)/K$. There is then a natural surjective map $ _0$ from the equivariant cohomology $H^*_K(X) $ of $X$ to the cohomology $H ...
Jeffrey, L, Kirwan, F
openaire +3 more sources
THE LOCAL GROUP IN THE COSMIC WEB [PDF]
The Astrophysical Journal, 2015 8 pages, 6 figures, ApJ ...
Forero Romero, J. +1 more
openaire +6 more sources
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
Vaccines, 2020 Since 2017, Italy has expanded the compulsory vaccination from 4 to 10 for those aged 0 to 16 years. Because of the great organizational effort required for the immunization services, minor attention was given to the vaccinations not included among the ...
Laura Serino +7 more
doaj +1 more source