Testosterone is controlled while it circulates in the bloodstream Testosterone is controlled while it circulates in the bloodstream  Science

Bodies have long resisted easy categorization Bodies have long resisted easy categorization  Science

Light drives a fast switching between achiral and chiral states in a crystal Light drives a fast switching between achiral and chiral states in a crystal  Science

The distribution of substitutional aluminum (Al) atoms in zeolites affects molecular adsorbate geometry, catalytic activity, and shape and size selectivity. Accurately determining Al positions has been challenging. We used synchrotron resonant soft x-ray … The distribution of substitutional aluminum (Al) atoms in zeolites affects molecular adsorbate geometry, catalytic activity, and shape and size selectivity. Accurately determining…

The mammalian Y chromosome is essential for male fertility, but which Y genes regulate spermatogenesis is unresolved. We addressed this by generating 13 Y-deletant mouse models. In Eif2s3y, Uty, and Zfy2 deletants, spermatogenesis was impaired. We found … The mammalian Y chromosome is essential for male fertility, but which Y genes regulate spermatogenesis is unresolved. We…

A field experiment provides a promising proof of concept A field experiment provides a promising proof of concept  Science

A sociologist rejects the notion that science is inherently apolitical, urging scholars to join the public square A sociologist rejects the notion that science is inherently apolitical, urging scholars to join the public square  Science

Higher strength and higher ductility are desirable for structural materials. However, ultrastrong alloys inevitably show decreased strain-hardening capacity, limiting their uniform elongation. We present a supranano (<10 nanometers) and short-range … Higher strength and higher ductility are desirable for structural materials. However, ultrastrong alloys inevitably show decreased strain-hardening capacity, limiting their uniform elongation. We present a…

Androgens are pleiotropic and play pivotal roles in the formation and variation of sexual phenotypes. We show that differences in circulating androgens between the three male mating morphs in ruff sandpipers are linked to 17-beta hydroxysteroid … Androgens are pleiotropic and play pivotal roles in the formation and variation of sexual phenotypes. We show that differences…

A previously unknown region in the brainstem controls dopamine activity A previously unknown region in the brainstem controls dopamine activity  Science