The US Constitution contains 7 articles: Article 1 deals with the Legislative branch; Article 2 is the executive branch; Article 3 is the Judicial branch; Article 4 is federalism; Article 5 is the Amendment process; and Article 6 is the supremacy clause. And the 7th article is the ratification of the Constitution.
Preparation of nanoparticles by Laser in Solution. Laser ablation is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. At low laser flux, the material is heated by the absorbed laser energy and evaporates or sublimates. At high laser flux, the material is typically converted to a plasma.
In medicine, ablation is the same as removal of a part of biological tissue, usually by surgery. Surface ablation of the skin (dermabrasion, also called resurfacing because it induces regeneration) can be carried out by chemicals (chemoablation), by lasers (laser ablation), or by electricity (fulguration).