Results 21 to 30 of about 1,122,223 (383)
On Dust Extinction of Gamma-ray Burst Host Galaxies [PDF]
, 2008 Although it is well recognized that gamma-ray burst (GRB) afterglows are obscured and reddened by dust in their host galaxies, the wavelength-dependence and quantity of dust extinction are still poorly known.
Kann, D. A. +5 more
core +2 more sources
The Extinction and De-Extinction of Species
Philosophy & Technology, 2016 In this paper, we discuss the following four alternative ways of understanding the outcomes of resurrection biology (also known as de-extinction). Implications of each of the ways are discussed with respect to concepts of species and extinction. (1) Replication: animals created by resurrection biology do not belong to the original species but are ...
Siipi, Helena, Finkelman, Leonard
openaire +3 more sources
The extinction of the dinosaurs [PDF]
Biological Reviews, 2014 ABSTRACTNon‐avian dinosaurs went extinct 66 million years ago, geologically coincident with the impact of a large bolide (comet or asteroid) during an interval of massive volcanic eruptions and changes in temperature and sea level. There has long been fervent debate about how these events affected dinosaurs.
Brusatte, Stephen L. +10 more
openaire +4 more sources
Cannabidiol regulation of learned fear: implications for treating anxiety-related disorders
Frontiers in Pharmacology, 2016 Anxiety and trauma-related disorders are psychiatric diseases with a lifetime prevalence of up to 25%. Phobias and post-traumatic stress disorder (PTSD) are characterized by abnormal and persistent memories of fear-related contexts and cues.
Regimantas Jurkus +5 more
doaj +1 more source
Dust distribution in L1217/L1219: Nice vs. Nicer [PDF]
Serbian Astronomical Journal, 2004 The dust in molecular clouds reliably traces the molecular gas within. We used this assumption to get an estimate of the dense cores size and mass in L1217/L1219 by deriving the total optical extinction, and therefore, the total column density.
Nikolić S., Kun M.
doaj +1 more source
Extinction behavior for a parabolic p-Laplacian equation with gradient source and singular potential
AIMS Mathematics, 2022 We concern with the extinction behavior of the solution for a parabolic p-Laplacian equation with gradient source and singular potential. By energy estimate approach, Hardy-Littlewood-Sobolev inequality, a series of ordinary differential inequalities ...
Dengming Liu , Luo Yang
doaj +1 more source
Extinction risk and threats to plants and fungi
Plants, People, Planet, 2020 expansion of efforts toward comprehensive and ongoing assessment of plant and fungal extinction risk.
E. N. Nic Lughadha +29 more
semanticscholar +1 more source
The Optical to Mid-infrared Extinction Law Based on the APOGEE, Gaia DR2, Pan-STARRS1, SDSS, APASS, 2MASS, and WISE Surveys [PDF]
Astrophysical Journal, 2019 A precise interstellar dust extinction law is critically important to interpret observations. There are two indicators of extinction: the color excess ratio (CER) and the relative extinction.
Shu Wang, Xiaodian Chen
semanticscholar +1 more source
The Mid-Infrared Extinction Law and its Variation in the Coalsack Nebula [PDF]
, 2013 In recent years the wavelength dependence of interstellar extinction from the ultraviolet (UV), optical, through the near- and mid-infrared (IR) has been studied extensively.
Chen, Yang +4 more
core +1 more source
Mathematical Modelling and Analysis, 2014 In this short paper, the authors investigate the extinction and non-extinction of solutions to a fast diffusive p-Laplace equation with a nonlocal source and an absorption term.
Yuzhu Han, Haixia Li, Wenjie Gao
doaj +1 more source