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tag space shuttle culture

colonies of mold growing on a Petri dish
Fungi Squeezed Through Microchannels Offer Clues to Cell Growth
Catherine Offord | Jun 1, 2021 | 3 min read
A study finds that fast-growing species are stymied by narrow gaps, while slower-growing species can pass through and continue extending.
NASA Administrator Daniel Goldin Explains Timing, Purpose Of Big Changes At Agency
Daniel Goldin | Jan 10, 1993 | 8 min read
Editor's Note: Daniel Goldin, administrator of the National Aeronautics and Space Administration, was named to his $14 billion agency's top post seven months ago, having come from a position as vice president of TRW Inc.'s Space & Technology Group in Redondo Beach, Calif. In October, he initiated a series of major changes in the structure of NASA's space sciences research program. For example, Goldin has separated Mission to Planet Earth, the agency's Earth-observation satellite program, from t
The Scientist Staff | Mar 28, 2024
A scanning electron micrograph of a coculture of E. coli and Acinetobacter baylyi. Nanotubes can be seen extending from the E. coli.
What’s the Deal with Bacterial Nanotubes?
Sruthi S. Balakrishnan | Jun 1, 2021 | 10+ min read
Several labs have reported the formation of bacterial nanotubes under different, often contrasting conditions. What are these structures and why are they so hard to reproduce?
translation gene genetics ribosome enhancers knowable magazine
What Does It Look Like to “Turn On” a Gene?
Alla Katsnelson, Casey Rentz, and Knowable Magazine | May 3, 2019 | 8 min read
Only recently have scientists directly witnessed this most pivotal of events in biology, thanks to new technology that allows them to observe the process in living cells. It’s teaching them a lot.
Exosomes Make Their Debut in Plant Research
Amanda Keener | Feb 1, 2019 | 10+ min read
A growing branch of research on how plants use exosomes to interact with their environment is opening up a new field of plant biology.
Honing Your Cloning
Bob Sinclair | Aug 20, 2000 | 8 min read
Early attempts to design vehicles for the cloning of foreign DNA produced vectors that were too big, unstable, or unselectable. The tide turned in 1977 with the construction of pBR313, the direct ancestor of the well-known pBR322, which forms the basis of many vectors that are still used extensively today.1 However, the cloning systems introduced in the last year or so seem to be about as related to pBR313 as Ferraris are to little red Radio Flyer wagons. Some of the new protein expression syst

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