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In chemistry and biology, reactive oxygen species ( ROS) are highly reactive chemicals formed from diatomic oxygen ( O2 ), water, and hydrogen peroxide. Some prominent ROS are hydroperoxide (O 2 H), superoxide (O 2- ), [1] hydroxyl radical (OH. ), and singlet oxygen. [2] ROS are pervasive because they are readily produced from O 2, which is ...
File:Ros logo.svg. Size of this PNG preview of this SVG file: 512 × 149 pixels. Other resolutions: 320 × 93 pixels | 640 × 186 pixels | 1,024 × 298 pixels | 1,280 × 373 pixels | 2,560 × 745 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
The Order of the White Rose of Finland was established by Gustaf Mannerheim in his capacity as regent (temporary head of state) on January 28, 1919. [4] [5] The name comes from the nine roses argent in the coat of arms of Finland. [6] The order's rules and regulations were confirmed on May 16, 1919, [7] and its present rules date from June 1, 1940.
Sinn Sisamouth [a] (c. 1932 – c. 1976) was a Cambodian singer-songwriter active from the 1950s to the 1970s. Widely considered the "King of Khmer Music", Sisamouth, along with Ros Serey Sothea, Pen Ran, Mao Sareth, and other Cambodian artists, was part of a thriving pop music scene in Phnom Penh that blended elements of Khmer traditional music with the sounds of rhythm and blues and rock and ...
The Tudor rose is a combination of the Red Rose of Lancaster and the White Rose of York. The Tudor rose (sometimes called the Union rose) is the traditional floral heraldic emblem of England and takes its name and origins from the House of Tudor, which united the House of Lancaster and the House of York. The Tudor rose consists of five white ...
The Red Rose of Lancaster ( blazoned: a rose gules) was the heraldic badge adopted by the royal House of Lancaster in the 14th century. In modern times it symbolises the county of Lancashire. The exact species or cultivar which it represents is thought to be Rosa gallica officinalis . John of Gaunt 's younger brother Edmund of Langley, 1st Duke ...
National symbols of Slovakia are the flag of Slovakia, the coat of arms of Slovakia, the Seal of Slovakia [ sk] and the Slovak anthem. These are protected by law and have restrictions on their use and reproduction. [1] Coat of arms of Slovak Republic. Flag of the Slovak Republic. Seal of the Slovak Republic.
Other than the national flag, anthem and emblem, Belarus has several unofficial symbols. The Cross of Saint Euphrosyne, a 12th-century relic which disappeared during the Second World War, is considered a spiritual symbol of Belarus. [12] The European bison, commonly called the wisent, is seen as a symbol of Belarus and the Belavezha Forest.