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The United States Commonwealth of Pennsylvania currently has 48 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 12 combined statistical areas, 16 metropolitan statistical areas, and 20 micropolitan statistical areas in Pennsylvania. [1]
With the advent of highly sensitive mass spectrometers, an application of 231 Pa as a tracer in geology and paleoceanography has become possible. In this application, the ratio of protactinium-231 to thorium-230 is used for radiometric dating of sediments which are up to 175,000 years old, and in modeling of the formation of minerals. [38]
The William M. (Mac) Thornberry National Defense Authorization Act for Fiscal Year 2021 (NDAA 2021) is a United States federal law which specifies the budget, expenditures and policies of the U.S. Department of Defense (DOD) for fiscal year 2021. Analogous NDAAs have been passed annually for 59 years. [1]
The most stable isotope is 231 Pa with a half-life of 32,760 years, 233 Pa with a half-life of 26.967 days, and 230 Pa with a half-life of 17.4 days. All of the remaining radioactive isotopes have half-lives less than 1.6 days, and the majority of these have half-lives less than 1.8 seconds.
Additionally, three more counties are included as part of the Harrisburg–York–Lebanon, PA combined statistical area. [5] Collectively, they have a population of 1,271,801 people, making it the 46th-most-populous combined statistical area (CSA) in the United States, and the 3rd-most-populous CSA in the state of Pennsylvania. [2]
A group of racial justice protesters reached a settlement with the federal government after filing a lawsuit accusing agents of using excessive force in 2020.
Rent edged back up a bit, increasing 0.3% following a 0.2% rise in November that marked the smallest monthly increase since July 2021. Yet that’s still a slowdown from a sharp run-up the past ...
In March 2007, Assemblage 23 released a new single, "Binary", which debuted at No. 21 on the Billboard US singles chart, preceding the album Meta, released in April 2007. Also in 2007 saw the release of Early Rare & Unreleased [6] which is a collection of 14 Assemblage 23 tracks taken from the years 1988–1998. In 2009, "Early Rare ...