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Stark Law is a set of United States federal laws that prohibit physician self-referral, specifically a referral by a physician of a Medicare or Medicaid patient to an entity for the provision of designated health services ("DHS") if the physician (or an immediate family member) has a financial relationship with that entity.
The law was first proposed in 1817 by Theodor Grotthuss and in 1842, independently, by John William Draper. [5] This is considered to be one of the two basic laws of photochemistry. The second law is the Stark–Einstein law, which says that primary chemical or physical reactions occur with each photon absorbed. [5]
The Anti-Kickback Statute [1] (AKS) is an American federal law prohibiting financial payments or incentives for referring patients or generating federal healthcare business. . The law, codified at 42 U.S. Code § 1320a–7b(b), [2] imposes criminal and, particularly in association with the federal False Claims Act, civil liability on those who knowingly and willfully offer, solicit, receive ...
The Stark effect is the shifting and splitting of spectral lines of atoms and molecules due to the presence of an external electric field. It is the electric-field analogue of the Zeeman effect , where a spectral line is split into several components due to the presence of the magnetic field .
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Stark seemed impressed by relativity and Einstein's earlier work when he quoted "the principle of relativity formulated by H. A. Lorentz and A. Einstein" and "Planck's relationship M 0 = E 0 /c 2" in his 1907 paper [2] in Physikalische Zeitschrift, where he used the equation e 0 = m 0 c 2 to calculate an "elementary quantum of energy", i.e. the ...
Stark spectroscopy (sometimes known as electroabsorption/emission spectroscopy) is a form of spectroscopy based on the Stark effect.In brief, this technique makes use of the Stark effect (or electrochromism) either to reveal information about the physiochemical or physical properties of a sample using a well-characterized electric field or to reveal information about an electric field using a ...
In 1980, Benedict Gross formulated the Gross–Stark conjecture, a p-adic analogue of the Stark conjectures relating derivatives of Deligne–Ribet p-adic L-functions (for totally even characters of totally real number fields) to p-units. [3] This was proved conditionally by Henri Darmon, Samit Dasgupta, and Robert Pollack in 2011. [4]