Periodic Abstinence: Definition, Motivation and Research

One of the Jesuit priests playing an organ. (11 January 1955) [Photo by Boleslaus Lukaszewski, Original number PHO 1.176a.26

Putting the Brakes on California\u27s Emissions Standards: An Analysis of the Legal Challenges California\u27s Advanced Clean Cars II Standards Will Face

This Note discusses the legal implications of California’s Advanced Clean Cars II vehicle-emissions standards. These standards, which would affect vehicle model years 2026 through 2035, seek to eliminate the sale of new gasoline-powered vehicles in favor of only selling electric, zero-emission vehicles. In light of the Supreme Court’s recent decision in West Virginia v. EPA, this type of “generation-shifting” plan stands on broken ground due to the applicability of the Major Questions Doctrine. The agency action here—EPA approval of a Clean Air Act §7543 waiver—is exactly the type of “extraordinary case” that the Court must strike down in order to ensure the separation of powers and protect Congress’ policy-making authority from administrative overreach. Further, such an action by the EPA would violate the scope of the agency’s authority as already outlined by the Supreme Court in the landmark case of Massachusetts v. EPA. This Note recommends that California, and ultimately all states, look to alternative ways to reach climate-change goals; one such way being the implementation of a sin tax on the sale of gasoline-powered vehicles. By enacting a more creative solution to reducing vehicle emissions, states can avoid the significant legal concerns and, more importantly, reduce their carbon footprint to reach their climate change goals

Poema de las piedras

El tiempo se hace instante en mis parpadeos y puedo elegir entre ver al hombre que me visita..

Ultra-high sensitivity magnetic field and magnetization measurements with an atomic magnetometer

We describe an ultra-sensitive atomic magnetometer using optically-pumped potassium atoms operating in spin-exchange relaxation free (SERF) regime. We demonstrate magnetic field sensitivity of 160 aT/Hz$^{1/2}$ in a gradiometer arrangement with a measurement volume of 0.45 cm$^3$ and energy resolution per unit time of $44 \hbar$. As an example of a new application enabled by such a magnetometer we describe measurements of weak remnant rock magnetization as a function of temperature with a sensitivity on the order of 10$^{-10}$ emu/cm$^3$/Hz$^{1/2}$ and temperatures up to 420$^\circ$C

Empire State : Barn Dance

https://digitalcommons.library.umaine.edu/mmb-ps/2710/thumbnail.jp