26,722 research outputs found
Correction to: Some results on the p(u)-Laplacian problem
Correction to: Mathematische Annalen
https://doi.org/10.1007/s00208-019-01803-w
In the Original Publication of the article, few errors have been identified in section 5
and acknowledgements section.Agência financiadora
Ministry of Education and Science, Russian Federation
117198
Portuguese Foundation for Science and Technology (FCT), Portugal
SFRH/BSAB/135242/2017info:eu-repo/semantics/publishedVersio
GHASP: an H{\alpha} kinematic survey of spiral and irregular galaxies -- IX. The NIR, stellar and baryonic Tully-Fisher relations
We studied, for the first time, the near infrared, stellar and baryonic
Tully-Fisher relations for a sample of field galaxies taken from an homogeneous
Fabry-Perot sample of galaxies (the GHASP survey). The main advantage of GHASP
over other samples is that maximum rotational velocities were estimated from 2D
velocity fields, avoiding assumptions about the inclination and position angle
of the galaxies. By combining these data with 2MASS photometry, optical colors,
HI masses and different mass-to-light ratio estimators, we found a slope of
4.48\pm0.38 and 3.64\pm0.28 for the stellar and baryonic Tully-Fisher relation,
respectively. We found that these values do not change significantly when
different mass-to-light ratios recipes were used. We also point out, for the
first time, that rising rotation curves as well as asymmetric rotation curves
show a larger dispersion in the Tully-Fisher relation than flat ones or than
symmetric ones. Using the baryonic mass and the optical radius of galaxies, we
found that the surface baryonic mass density is almost constant for all the
galaxies of this sample. In this study we also emphasize the presence of a
break in the NIR Tully-Fisher relation at M(H,K)\sim-20 and we confirm that
late-type galaxies present higher total-to-baryonic mass ratios than early-type
spirals, suggesting that supernova feedback is actually an important issue in
late-type spirals. Due to the well defined sample selection criteria and the
homogeneity of the data analysis, the Tully-Fisher relation for GHASP galaxies
can be used as a reference for the study of this relation in other environments
and at higher redshifts.Comment: 16 pages, 6 figures. Accepted for publication in MNRA
Self-Similar Collapse of Scalar Field in Higher Dimensions
This paper constructs continuously self-similar solution of a spherically
symmetric gravitational collapse of a scalar field in n dimensions. The
qualitative behavior of these solutions is explained, and closed-form answers
are provided where possible. Equivalence of scalar field couplings is used to
show a way to generalize minimally coupled scalar field solutions to the model
with general coupling.Comment: RevTex 3.1, 15 pages, 3 figures; references adde
Water diffusion in rough carbon nanotubes
We use molecular dynamics simulations to study the diffusion of water inside
deformed carbon nanotubes with different degrees of deformation at 300 K. We
found that the number of hydrogen bonds that water forms depends on nanotube
topology, leading to enhancement or suppression of water diffusion. The
simulation results reveal that more realistic nanotubes should be considered to
understand the confined water diffusion behavior, at least for the narrowest
nanotubes, when the interaction between water molecules and carbon atoms is
relevant.Comment: 17 pages, 8 figure
Caracterização e análise estatística de experimentos de agrossilvicultura.
São apresentados métodos de análise estatística de experimentos de Agrossilvicultura, isto é, associação entre plantios ou povoamentos florestais com espécies anuais ou perenes. Aspectos de competição entre culturas agrícolas e árvores são considerados, como também os tipos de sistemas agroflorestais e possibilidades de sua aplicação no Brasil. Os métodos foram ilustrados com exemplos numéricos e suas vantagens e desvantagens discutidas
Banco de Dados de Genótipos e Fenótipos (BDGF) para suporte a estudos de associação genômica ampla e seleção genômica em programas de melhoramento animal.
Este documento complementa os trabalhos previamente desenvolvidos, apresentando um modelo de dados para armazenamento de dados de genótipos, fenótipos e pedigree de animais de interesse agropecuário para suporte tanto a experimentos de GWAS quanto a programas de melhoramento genético animal, Banco de Dados de Genótipos e Fenótipos(BDGF).bitstream/item/138127/1/Doc133.pd
- …