Results 71 to 80 of about 41,512 (153)

The Ottoman Gunpowder Empire and the Composite Bow

open access: yes, 2010
The Ottoman Empire is known today as a major Gunpowder Empire, famous for its prevalent use of this staple of modern warfare as early as the sixteenth century.
Lanan, Nathan
core  

Investigating the availability of 3D-printed firearm designs on the clear web. [PDF]

open access: yesForensic Sci Int Synerg, 2023
Schaufelbühl S   +4 more
europepmc   +1 more source

Methodological Problems in Every Black-Box Study of Forensic Firearm Comparisons [PDF]

open access: yesarXiv
Reviews conducted by the National Academy of Sciences (2009) and the President's Council of Advisors on Science and Technology (2016) concluded that the field of forensic firearm comparisons has not been demonstrated to be scientifically valid. Scientific validity requires adequately designed studies of firearm examiner performance in terms of accuracy,
arxiv  

Evaluating the Transferability and Adversarial Discrimination of Convolutional Neural Networks for Threat Object Detection and Classification within X-Ray Security Imagery [PDF]

open access: yesarXiv, 2019
X-ray imagery security screening is essential to maintaining transport security against a varying profile of threat or prohibited items. Particular interest lies in the automatic detection and classification of weapons such as firearms and knives within complex and cluttered X-ray security imagery. Here, we address this problem by exploring various end-
arxiv  

Calling All the Statesmen: The (not) Mubarak Trial [PDF]

open access: yes, 2017
I read the decision that exonerated ex-Minister of Interior of Egypt and his assistants from the charge of giving orders to kill demonstrators textually.
Abu-Odeh, Lama
core   +1 more source

Are Politicians Responsive to Mass Shootings? Evidence from U.S. State Legislatures [PDF]

open access: yesarXiv
The United States leads the world in the number of violent mass shootings that occur each year, and policy making on firearms remains polarized along party lines. Are legislators responsive to mass shootings? We estimate the latent positions of nearly 2,000 state legislators on gun policy from their roll-call voting records on firearm-related bills ...
arxiv  

Bracketing in the Comparative Interrupted Time-Series Design to Address Concerns about History Interacting with Group: Evaluating Missouri Handgun Purchaser Law [PDF]

open access: yesEpidemiology, Volume 30, Issue 3, p.371-379, 2019, 2019
In the comparative interrupted time series design (also called the method of difference-in-differences), the change in outcome in a group exposed to treatment in the periods before and after the exposure is compared to the change in outcome in a control group not exposed to treatment in either period. The standard difference-in-difference estimator for
arxiv  

Examining the Healthcare and Economic Burden of Gun Violence in a Major US Metropolitan City. [PDF]

open access: yesJ Am Acad Orthop Surg Glob Res Rev, 2023
Silver JH   +5 more
europepmc   +1 more source

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