Results 21 to 30 of about 1,353,263 (305)

The US gun policy: domestic and external dimensions

open access: yesАмериканська історія і політика, 2020
The purpose of the article is to explore proliferation of firearms in the United States due to social problems (mass shootings) and public demand for increasing gun control. Primary challenges cover exploring the U.S.
Marharyta Lymar, Iryna Tykhonenko
doaj   +1 more source

Planet-driven Spiral Arms in Protoplanetary Disks. I. Formation Mechanism [PDF]

open access: yes, 2017
Protoplanetary disk simulations show that a single planet can excite more than one spiral arm, possibly explaining the recent observations of multiple spiral arms in some systems. In this paper, we explain the mechanism by which a planet excites multiple
Bae, Jaehan, Zhu, Zhaohuan
core   +3 more sources

Small Arms...as a Last Resort [PDF]

open access: yes, 2014
One can only contemplate the fearful moment of realisation that a situation has become dire, there are few options available, and in reality there will be ‘no quarter’ from your adversaries.
Phil Harrison
core   +1 more source

Chronicle of the elaboration of new heraldic and vexillological symbols of Chișinău municipality and its sectors (II) [PDF]

open access: yesDialogica: Revistă de Studii Culturale și Literatură, 2021
On March 2, 2020, the President of the Republic of Moldova signed Decree no. 1475-VIII regarding the registration of some territorial symbols of Chișinău municipality.
Silviu ANDRIEȘ-TABAC
doaj   +1 more source

AI-based small arms firing skill evaluation system in the military domain

open access: yesDefence Technology, 2023
Evaluation system of small arms firing has an important effect in the context of military domain. A partially automated evaluation system has been conducted and performed at the ground level.
Rezoanul Hafiz Chandan   +6 more
doaj   +1 more source

The relation between magnetic and material arms in models for spiral galaxies

open access: yes, 2013
Context. Observations of polarized radio emission show that large-scale (regular) magnetic fields in spiral galaxies are not axisymmetric, but generally stronger in interarm regions.
Arshakian, T. G.   +5 more
core   +1 more source

Star formation and ISM morphology in tidally induced spiral structures [PDF]

open access: yes, 2017
Tidal encounters are believed to be one of the key drivers of galactic spiral structure in the Universe. Such spirals are expected to produce different morphological and kinematic features compared to density wave and dynamic spiral arms. In this work we
Benincasa, Samantha M.   +4 more
core   +2 more sources

Magnetic Spiral Arms and Galactic Outflows [PDF]

open access: yes, 2014
Galactic magnetic arms have been observed between the gaseous arms of some spiral galaxies; their origin remains unclear. We suggest that magnetic spiral arms can be naturally generated in the interarm regions because the galactic fountain flow or wind ...
Chamandy, Luke   +2 more
core   +1 more source

Protests and use of rubber bullets in South Africa: Unspoken pain and trauma of eye injuries

open access: yesTorture
Introduction: The article examines the experiences of protesters and bystanders who have sustained eye injuries from rubber bullets fired by the police. Use of rubber bullets by police officers during public protests is officially regulated, but there is
Malose Langa   +3 more
doaj   +1 more source

Security Challenges and the Proliferation of Small & Light Arms in Nigeria: Implication for National Development

open access: yesKhazanah Hukum, 2023
It is apt to note that the central impediment to sustainable peace and security is the constant and continued proliferation of small and light weapons (SALW).
Mohammed Ghani Dass   +1 more
doaj   +1 more source

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