David Mark is a Senior Editor and National Sport Reporter for ABC News. With a focus on national news in the United States, David's articles cover a wide range of topics including politics, sports, redistricting, and social issues. His work has been featured in various publications and media outlets, showcasing his expertise and extensive journalism experience.
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David Mark focuses on national politics within the United States, covering a wide range of political events and government announcements. If you have insights or analysis related to US politics, especially regarding elections, policy changes, or key governmental decisions at both federal and local levels, these would likely be well-received by him.
Given his focus on specific states like California and Texas as well as broader US political trends such as redistricting plans and congressional races, offering expertise in these areas may capture his attention.
David's strong emphasis on government announcements indicates an interest in breaking news related to political activities. Therefore, providing timely commentary or exclusive information about upcoming political events could also attract his interest.
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By: David Mark
Marie Gluesenkamp Perez and Joe Kent have been sniping at each other for more than two years.
Hernando Sun Newspaper covers Brooksville, Masaryktown, Spring Hill, Ridge Manor, Weeki Wachee News
By: David Mark
Star all-rounder Cameron Green is considering back surgery that would see him miss Australia's five-Test series against India this summer.
Kamala Harris can't easily match Joe Biden's support in Pennsylvania, near his home state.
By: Kabo R. Wale, Nicky O Boyle, Rebecca McHugh, Gillian R. Douce, Andrew J. Roe, Ester Serrano, David Mark
Abstract The ability of the attaching and effacing pathogens enterohaemorrhagic Escherichia coli (EHEC) and Citrobacter rodentium to overcome
By: David Mark
The Greater Western Sydney Giants have always had to go above and beyond to make a mark in rugby league heartland.
By: David Mark
Glasgow has stepped up to host the 2026 Commonwealth Games but with just over half the number of sports remaining and cost blowouts putting off other countries, do the Games have a future?
By: David Mark
The Pentagon said on Monday that the United States would not impose new limits on Ukraine's use of American weapons if North Korea enters the war.
The race to control the chamber is close, and these 10 congressional districts make up some of the most competitive contests in 2024.
By: David Mark, Juan Ignacio
The investigation of new composite materials possessing low weight but not at the expense of their mechanical performance is of great interest in terms of reducing energy consumption in many industrial applications. This study is focused on the nanomechanical characterization of high-density polyethylene (HDPE)-based composite specimens modified with equal loadings of graphene nanoplatelets (GNPs) and/or multiwall carbon nanotubes (MWCNTs). Quasi-static nanoindentation analysis revealed the impact of the carbon nanofillers on the receiving of nanocomposites with higher nanohardness and reduced modulus of elasticity, reaching values of 0.146 GPa and 3.57 GPa, respectively. The role of the indentation size effect in elastic polymer matrix was assessed by applying three distinct peak forces. Nanoscratch experiments depicted the tribological behavior of the composite samples and inferred the influence of the carbon nanofillers on the values of the coefficient of friction (COF). It seems that the incorporation of 4 wt% GNPs in the polymer structure improves the scratch resistance of the material, resulting in a higher value of the exerted lateral force and therefore leading to the detection of a higher coefficient of friction at scratch of 0.401. A considerable pile-up response of the scratched polymer specimens was observed by means of
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