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Oxygen permeability ( OP) is a parameter of a contact lens that expresses the ability of the lens to let oxygen reach the eye by diffusion. In soft contact lenses, it is dependent on the thickness of the lens and the material of the lens, especially concerning the water content. Because of this dependence on thickness, transmissibility level ...
Types. The FDA classifies soft contact lenses into four groups for the US market. They are also subcategorized into 1st generation, 2nd generation, and 3rd generation lens materials. [6] These 'water-loving' soft contact lens materials are categorized as "Conventional Hydrophilic Material Groups ("-filcon"): Group. Water Content.
The Cheetah Conservation Fund is a research and lobby institution in Namibia concerned with the study and sustenance of the country's cheetah population, the largest and healthiest in the world. Its Research and Education Centre is located 44 kilometres (27 mi) east of Otjiwarongo. The CCF was founded in 1990 by conservation biologist Laurie ...
An explosive lens —as used, for example, in nuclear weapons —is a highly specialized shaped charge. In general, it is a device composed of several explosive charges. These charges are arranged and formed with the intent to control the shape of the detonation wave passing through them. The explosive lens is conceptually similar to an optical ...
Robert B. Simon. Education. Columbia University (BA, MA, PhD) Occupation (s) art dealer, art historian. Known for. rediscovering Da Vinci 's Salvator Mundi. Robert B. Simon (born 27 November 1952, New York) is an American art historian and art dealer most known for rediscovering Leonardo da Vinci 's picture, Salvator Mundi. [1] [2]
Mudrick Capital Management is an American investment firm and vulture fund specializing in special situations and event driven investing that include investing in distressed securities. [2] The firm was founded by Jason Mudrick, its current Chief Investment Officer, in 2009. [3] The firm is located in New York City [4] and, as of June 2022 ...
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