Results 61 to 70 of about 386,815 (325)
K-corrections: an Examination of their Contribution to the Uncertainty of Luminosity Measurements
The Open Journal of Astrophysics, 2016 In this paper we provide formulae that can be used to determine the uncertainty contributed to a measurement by a K-correction and, thus, valuable information about which flux measurement will provide the most accurate K-corrected luminosity. All of this
Sean Lake, Ned Wright
doaj +1 more source
Energies, 2023 To restrain the environmental impact of modern SI engines, igniters must guarantee stable combustions with low cycle-to-cycle variability in extreme operating conditions (high EGR, ultra-lean), via high energy release in the combustion chamber.
Roberto Martinelli +5 more
doaj +1 more source
The bolometric luminosities of stars [PDF]
Symposium - International Astronomical Union, 1997 The total energy emitted by a star is one of its basic parameters. It is also one of the most difficult to determine, requiring space-based as well as ground-based measurements of the absolute flux from stars. We review the current status of these observations in the ultraviolet, visible, and near infrared, and estimate the uncertainties of the ...
Jeffrey W. Percival, Robert Bless
openaire +3 more sources
Molecular Oncology, EarlyView.Cotargeting EGFR and STAT3 with Erlotinib and TTI‐101 impairs both 2D and 3D growth of ETV1‐overexpressing prostate cancer cells by disrupting a self‐sustaining ETV1–EGFR positive feedback loop that promotes EGFR and STAT3 expression and phosphorylation (activation).
Elsa Gomes Paiva +5 more
wiley +1 more source
Luminosity Measurements at the LHC at CERN Using Medipix, Timepix and Timepix3 Devices
Physics, 2021 The precise determination of the luminosity is essential for many analyses in physics based on the data from the particle accelerator Large Hadron Collider (LHC) at CERN. There are different types of detectors used for the luminosity measurements.
André Sopczak
doaj +1 more source
Mid-infrared luminosity as an indicator of the total infrared luminosity of galaxies
, 2004 The infrared (IR) emission plays a crucial role for understanding the star formation in galaxies hidden by dust. We first examined four estimators of the IR luminosity of galaxies, L_fir (Helou et al. 1988), L_tir (Dale et al.
A. Boselli +37 more
core +5 more sources
Evidence for different accretion regimes in GRO J1008-57 [PDF]
, 2017 We present a comprehensive spectral analysis of the BeXRB GRO J1008-57 over a luminosity range of three orders of magnitude using NuSTAR, Suzaku and RXTE data. We find significant evolution of the spectral parameters with luminosity.
Ballhausen, Ralf +8 more
core +3 more sources
Molecular Oncology, EarlyView.RKIP, a metastasis suppressor protein, modulates key oncogenic pathways in lung adenocarcinoma. In silico analyses linked low RKIP expression to poor survival. Functional studies revealed RKIP overexpression reduces tumor aggressiveness and enhances sensitivity to EGFR‐targeted therapies, while its loss promotes resistance.
Ana Raquel‐Cunha +10 more
wiley +1 more source
Floresta e Ambiente, 2020 As native tree species are often used for densification, enrichment and degraded areas recovery, a better understanding of the behavior of their seedlings in response to light exposure is needed. This study evaluates the growth and morphological behavior
Alexandre Techy de Almeida Garrett +3 more
doaj +1 more source
Ecological anatomy of Eugenia punicifolia (Kunth) DC. (MYRTACEAE) in the restinga region,state of Ceará [PDF]
Revista Brasileira de Fruticultura, 2019 The species Eugenia punicifolia (Kunth) DC. (myrtle) occurs in the coastal region of the state of Ceará and has ecological and medicinal importance. This study aimed to characterize the leaf anatomy of myrtle (E. punicifolia) in the rainy and dry seasons,
Viviane de Oliveira Thomaz Lemos +3 more
doaj +1 more source