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...profile of the star is known. So-called polytropic stellar models are ones in which the pressure at some radius is proportional to the density at that radius to some power. For a star described by a polytropic model with cap p of r proportional to rho times left parenthesis r right parenthesis super five solidus three (a reasonable approximation), the mean density turns...

...et al. The identification of sulfide oxidation as a potential metabolism driving primary production on late Noachian Mars. Sci Rep 10, 10941 (2020)., https://creativecommons.org/ licenses/ by/ 4.0/; Slide 2 : (Fgure 9) courtesy of Velislava Ilieva; Slide 3 (Figure 10): Courtesy of Daniel Loy; Slide 4 (Figure 11): courtesy of Hannah Cooper; Slide 5 (Figure 12): NASA/MSFC...

...style to Example 4. Here gamma of t equals e super three times i times t left parenthesis t element of left square bracket zero comma two times pi solidus three right square bracket right parenthesis . Then z equals e super three times i times t comma one solidus z equals e super negative three times i times t and d times z equals three times i times e super three times i...

...style. The statistician Peter McCullagh describes a lecture he gave at Imperial College, London in 1977: Tukey ambled to the podium, a great bear of a man dressed in baggy pants and a black knitted shirt. These might once have been a matching pair, but the vintage was such that it was hard to tell. …The words came …, not many, like overweight parcels, delivered at a...

...Profile. In addition, you can download and print your OpenLearn Statement of participation – which also displays your badge. This course has been produced as part of the Department for Education’s Flexible Learning Fund 336 and with the kind support of Dangoor Education337, the educational arm of The Exilarch’s Foundation. [Funders logos] This course was written by...