Results 141 to 150 of about 199,466 (288)
Hamas's October 7 Attack: Analysis of an “Antagonistic” Crisis
Public Administration Review, EarlyView.ABSTRACT The aim of the article is to interpret the Hamas attack of October 7, 2023 in light of crisis management theories, seeking to draw from this event some general lessons about the nature of crises, their determinants, and how they are managed. More specifically, the article addresses three questions: (1) Why did Israel underestimate the warning ...
Federico Toth
wiley +1 more source
Risk Analysis, EarlyView.Abstract There are two separate conceptualizations for assessing existential risks: Planetary Boundaries (PBs) and global catastrophic risks (GCRs). While these concepts are similar in principle, their underpinning literatures tend not to engage with each other.
Eoin McLaughlin, Matthias Beck
wiley +1 more source
The Imprint of Presupernova Winds on Supernova Remnant Evolution: Towards More Realistic Models for Type Ia Supernova Remnants and their Spectra [PDF]
arXiv, 2002 Supernova remnants are usually analysed in the light of hydrodynamical models of the interaction of supernova ejecta with either a constant density ambient medium or a circumstellar medium produced by a constant presupernova wind. However, the ejection of energetic wind during the presupernova phase changes the ambient medium structure and ...
arxiv
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley +1 more source
INTERACTION OF SUPERNOVA BLAST WAVES WITH WIND-DRIVEN SHELLS: FORMATION OF
Odessa Astronomical Publications, 2017 Most of middle-aged supernova remnants (SNRs) have a distorted and complicated appearance which cannot be explained in the framework of the Sedov-Taylor model.
V. V. Gvaramadze
doaj +1 more source
A Supernova Remnant in Centaurus
The Astrophysical Journal, 1967 Observations of the composite radio source which includes the catalogued components 1209-52 and 1209-51 (Bolton et al. 1964) have been obtained at frequencies 629, 1410, and 2650 MHz with the 210-ft Parkes telescope. The observations at the highest frequency are shown in Figure 1.
J. B. Whiteoak, F. F. Gardner
openaire +3 more sources
Population Ecology, Volume 67, Issue 2, Page 109-124, April 2025.In the process of captive breeding and reintroduction of endangered animal species, it is crucial to minimize familial bias in reproductive success during the reintroduction phase to preserve genetic diversity. In this study, we attempted to identify the familial lineage of individuals of the endangered bagrid fish Tachysurus ichikawai born at the ...
Hinano Mizuno +5 more
wiley +1 more source
Mapping the Dense Molecular Gas toward 13 Supernova Remnants
The Astrophysical JournalSupernova remnants (SNRs) can exert strong influence on molecular clouds (MCs) through interaction by shock wave and cosmic rays. In this paper, we present our mapping observation of HCO ^+ and $\mathrm{HCN}$ 1–0 lines toward 13 SNRs interacting with MCs,
Tian-Yu Tu, Yang Chen, Qian-Cheng Liu
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Positron Annihilation Spectroscopy of Young Supernova Remnants
Odessa Astronomical Publications, 2018 This paper discusses radiative and thermodynamic properties of cold rarefied aggregates of non-uniformly distributed gas and dust through which high fluxes of positrons with energies of 0.011-3.6 MeV pass.
D. N. Doikov
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Advanced Optical Materials, Volume 13, Issue 10, April 4, 2025.A complete series of bromide‐based and iodide‐based 2D chiral double perovskites has been structurally characterized and their chiroptical properties investigated to reveal the effect of both polymorphism and nature of the halide anions in the circular dichroism of the thin films.
Maria Maniadi +4 more
wiley +1 more source