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YouTube is an American online video sharing platform owned by Google. Accessible worldwide, [note 1] YouTube launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim, three former employees of PayPal. Headquartered in San Bruno, California, United States, it is the second most visited website in the world, after Google Search.
Iontophoresis. Iontophoresis is a process of transdermal drug delivery by use of a voltage gradient on the skin. [1] [2] Molecules are transported across the stratum corneum by electrophoresis and electroosmosis and the electric field can also increase the permeability of the skin.
1. Illustration of electrophoresis. 2. Illustration of electrophoresis retardation. In chemistry, electrophoresis is the motion of charged dispersed particles or dissolved charged molecules relative to a fluid under the influence of a spatially uniform electric field. As a rule, these are zwitterions.
Sonophoresis. Sonophoresis also known as phonophoresis, is a method that utilizes ultrasound to enhance the delivery of topical medications through the stratum corneum, to the epidermis and dermis. Sonophoresis allows for the enhancement of the permeability of the skin along with other modalities, such as iontophoresis, to deliver drugs with ...
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Lori and George Schappell (September 18, 1961 – April 7, 2024) were American conjoined twins. George performed as a country singer. As of 2020, they were the oldest living conjoined twins in the world. [1] [2] Guinness World Records noted that George's gender transition made him and Lori the first set of conjoined twins to identify as ...
As of May 2023, thirteen videos have exceeded four billion views, eight of which exceed five billion views, five of which exceed six billion views, and two of which exceed eight billion views.
Early life. Krishna Kaul was born on 4 October 1989, into a Kashmiri Pandit family in Delhi.He spent a part of his childhood in South London, where he was raised and schooled for a few years.
Neal Mohan's voice. On COVID-19 's impact on YouTube. Recorded July 2020. Signature. Neal Mohan (born July 14, 1973) [1] [2] is an American business executive who is the current chief executive officer of YouTube. [3] [4] Mohan was born in Lafayette, Indiana. [2] He spent most of his childhood growing up in the United States before moving to ...
Susan Diane Wojcicki ( / wʊˈtʃɪtski / woo-CHITS-kee; [1] born July 5, 1968) is an American business executive who was the chief executive officer (CEO) of YouTube from 2014 to 2023. Her net worth was estimated at $765 million in 2022. [2] Wojcicki has worked in the technology industry for over twenty years.