An American horseback tour operator who spent her days leading guests along Antigua’s picturesque shoreline has died after a brutal assault earlier this month. Karen Johannsen, 66, of Madison, ...
Crystal structures of the Lac repressor, with and without isopropylthiogalactoside (IPTG), and the repressor bound to operator have provided a model for how the binding of the inducer reduces the ...
War, political upheaval and extreme weather defined 2025, alongside rare moments of resilience and global attention. This is 2025. Amid an internet blackout, a heavy military presence and volatile ...
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