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The superconducting properties of YBa 2 Cu 3 O 7−x are sensitive to the value of x, its oxygen content. Only those materials with 0 ≤ x ≤ 0.65 are superconducting below T c , and when x ~ 0.07 , the material superconducts at the highest temperature of 95 K , [ 6 ] or in highest magnetic fields: 120 T for B perpendicular and 250 T for B ...
It has been suggested that rather than represent two unique strategies, dominance and prestige should be seen as two distinct groups of strategies with different sub-strategies within each of the two major categories. [2] While distinct, the two strategies both enable people to gain social standing and maintain it over time.
In sociolinguistics, prestige is the level of regard normally accorded a specific language or dialect within a speech community, relative to other languages or dialects.. Prestige varieties are language or dialect families which are generally considered by a society to be the most "correct" or otherwise sup
In “A City on Mars,” Kelly and Zach Weinersmith investigate what life would be like for humans on the red planet, arguing that Elon Musk’s dream is doomed to fail.
The uptake and loss of oxygen are reversible in YBa 2 Cu 3 O 7−x. A fully oxygenated orthorhombic YBa 2 Cu 3 O 7−x sample can be transformed into tetragonal YBa 2 Cu 3 O 6 by heating in a vacuum at temperature above 973 K (700 °C). [68] The preparation of Bi-, Tl- and Hg-based high-T c superconductors is more difficult than the YBCO ...
An 8-year-old boy with Down syndrome became a hero after he alerted his 14-year-old sister of a fire in their Colorado home, helping them get out on time before it was engulfed in flames.
The future of congressional investigations could be defined by Republican eagerness to probe private industry and less willingness to defer to the Justice Department, experts say. House ...
Arabic – In the Arab League countries, Modern Standard Arabic is considered the H-language, or high-prestige language. In contrast to most prestige dialects, it is not used in day-to-day conversation, but is rather reserved for literature and elevated or formal discourse. It is not commonly used in everyday conversation. [1]