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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. [3] [4] These phenomena, directly and indirectly, constitute active transport ...
Coronavirus envelope protein. The envelope (E) protein is the smallest and least well-characterized of the four major structural proteins found in coronavirus virions. [2] [3] [4] It is an integral membrane protein less than 110 amino acid residues long; [2] in SARS-CoV-2, the causative agent of Covid-19, the E protein is 75 residues long. [5 ...
El Mundo (lit. ' The World ') is a Puerto Rican newspaper founded in 1919 by Romualdo Real. Its slogan was "Verdad y Justicia" (Truth and Justice). In 1929, former corrector-turned-administrator Angel Ramos and journalist José Coll Vidal, bought the newspaper when Real retired.
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2.The first known case was identified in Wuhan, China, in December 2019. Most scientists believe the SARS-CoV-2 virus entered into human populations through natural zoonosis, similar to the SARS-CoV-1 and MERS-CoV outbreaks, and consistent with other pandemics in human history.
The COVID-19 pandemic was covered in Wikipedia extensively, in real-time, and across multiple languages. This coverage extends to many detailed articles about various aspects of the topic itself, as well as many existing articles being amended to take account of the pandemic 's effect on them. [1] Wikipedia and other Wikimedia projects ...
Coronaviridae is a family of enveloped, positive-strand RNA viruses which infect amphibians, birds, and mammals. The group includes the subfamilies Letovirinae and Orthocoronavirinae; the members of the latter are known as coronaviruses . The viral genome is 26–32 kilobases in length. The particles are typically decorated with large (~20 nm ...
The COVID-19 pandemic in El Salvador was a part of the worldwide pandemic of coronavirus disease 2019 ( COVID-19) caused by severe acute respiratory syndrome coronavirus 2 ( SARS-CoV-2 ). The virus was confirmed to have reached El Salvador on 18 March 2020. [4] As of 19 September 2021, El Salvador reported 102,024 cases, 3,114 deaths, and ...
The COVID-19 pandemic in Spain has resulted in 13,980,340 [1] confirmed cases of COVID-19 and 121,852 [1] deaths. The virus was first confirmed to have spread to Spain on 31 January 2020, when a German tourist tested positive for SARS-CoV-2 in La Gomera, Canary Islands. [2] Post-hoc genetic analysis has shown that at least 15 strains of the ...