Environmental factors related to basking in the midland painted turtle, Chrysemys picta marginata (Agassiz)

The time of the day, the radian temperature, and the sky condition are the three most important individual factors relative to the basking behavior of painted turtles. Painted turtles bask more in the late morning than during any other daylight hours. Painted turtles do not bask at night. The combined effects of four factors; sky condition, air temperature, water temperature near the bottom, and the time of day account for more than 95% of the statistical significance of the variance

Review of Big Bang Nucleosynthesis and Primordial Abundances

Big Bang Nucleosynthesis (BBN) is the synthesis of the light nuclei, Deuterium, He3, He4 and Li7, during the first few minutes of the universe. This review concentrates on recent improvements in the measurement of the primordial (after BBN, and prior to modification) abundances of these nuclei. We mention improvement in the standard theory, and the non-standard extensions which are limited by the data. (abridged)Comment: 61 pages, to appear in Physica Script