Nuclear pore complex outer rings: No longer 'one size fits all'

In eukaryotic cells, the nucleus is walled off from the rest of the cell by the nuclear envelope. All transport into and out of the nucleus occurs via cylindrical channels called nuclear pore complexes (NPCs) that penetrate ...

'Fishing a line' coupled with clockwork for daily rhythm

Organisms on this planet, including human beings, exhibit a biological rhythm that repeats about every 24 hours to adapt to the daily environmental alteration caused by the rotation of the earth. This circadian rhythm is ...

Exomoons may be home to extra-terrestrial life

Moons orbiting planets outside our solar system could offer another clue about the pool of worlds that may be home to extra-terrestrial life, according to an astrophysicist at the University of Lincoln.

Self-sorting through molecular geometries

Researchers at Kanazawa University report in Communications Chemistry that certain pentagonal and hexagonal organic molecules exhibit self-sorting. The effect can be used to grow multilayered tubular structures that preserve ...

New Horizons spacecraft takes the inside course to Ultima Thule

With no apparent hazards in its way, NASA's New Horizons spacecraft has been given a "go" to stay on its optimal path to Ultima Thule as it speeds closer to a Jan. 1 flyby of the Kuiper Belt object a billion miles beyond ...

Researchers investigate complex molecular structures

The job of hemoglobin seems to be quite simple: It transports oxygen molecules through the bloodstream. But this only works so well because the hemoglobin molecule is extremely complex. The same applies to chlorophyll, which ...

The periodic motion of flexible knots, and the connection to DNA

Can the topology of microobjects influence the way they move in a fluid? Experiments and simulations of Polish and Swiss researchers published in the Physical Review Letters show that the dynamics of elastic chains settling ...

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