These open-source MMM tools solve different measurement problems, from budget optimization to forecasting and preprocessing.

Proteolytic enzymes play widespread roles in a variety of essential biological processes, both as nonspecific mediators of protein degradation and in the catalysis of specific cleavage events.

Get ready for another cold blast this weekend! Arctic air is moving into the mid south Saturday behind a cold front. Highs will be in the upper 30s/lower 40s with partly to mostly cloudy skies.

MEMPHIS, Tenn. - Frigid Arctic air has arrived in the Mid-South, and it will be sticking around for the next couple of days. Grab the warm clothing! We slowly thaw out by midweek, as precipitation ...

Anticipate mostly cloudy skies tonight with a chance of a few flurries. Round 2 of snow begins Sunday. Expect 2-3" of snow before bitter cold arrives for the week. Monday night into Tuesday will be ...

Rain is possible during the predawn hours of Wednesday. This will be light and spotty in nature. Wednesday night into Thursday morning - we have showers pushing through that will start as rain, and ...

This weekend will feel warm and dry, with cooler temperatures expected next week. This video was broadcast on the NBC4 News at 6 a.m. on Jan. 16, 2026.