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The most common form is caused by a genetic condition called congenital red–green color blindness (including protan and deutan types), which affects up to 1 in 12 males (8%) and 1 in 200 females (0.5%). [2] [3] The condition is more prevalent in males, because the opsin genes responsible are located on the X chromosome. [2]
The starkest difference is the scoterythrous effect, where reds appear dimmer to protans. This is why protans often confuse red with black, while deutans do not. The protan luminous efficiency function is narrower at long wavelengths, which causes the reds to be darker. This is due to the red cones (which normally cover the red side of the ...
EnChroma are a brand of color corrective lenses designed to address the symptoms of red–green color blindness.Studies have shown that these lenses can alter the appearance of colors, but they do not restore normal color vision, [1] and generally agree that they do not allow the wearer to see "new" colors, with some exceptions.
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A Assuming an altitude of 194 metres above mean sea level (the worldwide median altitude of human habitation), an indoor temperature of 23 °C, a dewpoint of 9 °C (40.85% relative humidity), and 760 mmHg sea level–corrected barometric pressure (molar water vapor content = 1.16%).
Methylphenidate, sold under the brand names Ritalin (/ ˈ r ɪ t ə l ɪ n / RIT-ə-lin) and Concerta (/ k ə n ˈ s ɜːr t ə / kən-SUR-tə) [citation needed] among others, is a central nervous system (CNS) stimulant used medically to treat attention deficit hyperactivity disorder (ADHD) and, to a lesser extent, narcolepsy.
In the 1920s, sculptor Gutzon Borglum and President Calvin Coolidge selected George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln (L to R) to appear on Mount Rushmore—it later became an iconic symbol of presidential greatness, chosen to represent the nation's birth, growth, development and preservation, respectively.
The Republican Governance Group, originally the Tuesday Lunch Bunch and then the Tuesday Group until 2020, is a group of moderate Republicans in the United States House of Representatives. [7] It was founded in 1994 in the wake of the Republican takeover of the House; the Republican House caucus came to be dominated by conservatives. [8]
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