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Tag: "tunnels" at biology news

The secret to longevity in tubeworms

...its unique "roots," extensions of its body that it tunnels into the sediments. However, current measurements of sulfide and sulfate fluxes in the water near the vents do not match the observed tubeworm colony size and individual longevity, leading Cordes et al. to propose that L. luymesi also uses its roots ...

Breast-Cancer Risk Linked to Exposure to Traffic Emissions at Menarche, First Birth

...d tail-pipe emissions, including measurements from tunnels and tests on individual vehicles. A geographic model was used to reconstruct historic traffic PAHs, using measurements of benzo[a]pyrene, a known potent mutagen and carcinogen, as a surrogate for total PAH exposure. Cruise emissions, cold engine emis...

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

...ell in the human body. They are tightly controlled tunnels through the membrane barriers that hold in the cell's contents, separating the cell from the outside world. Ion channels allow ions such as potassium, sodium and calcium to flow in and out and so are key regulators of many fundamental processes in bi...

'Underground' tunnels discovered as means for communication between immune system cells

...cted to each other by an extensive network of tiny tunnels that, like a building's hidden pneumatic tube syst...l connections. Thus far, their studies suggest the tunnels do not exist between commonly used fibroblast and tumor cell lines. Interestingly, if not for a min...

New understanding of regeneration gained by Forsyth scientists

...ientists have found that gap-junction (microscopic tunnels directly linking neighboring cells) communication contributes to this signaling. This research, led by Dr. Michael Levin, underlies principles that can potentially offer insight into human regeneration. The restoration of body structures following i...

Fire ants: Their true story told by the scientist who loves them

...rium that collects heat to warm its residents. The tunnels below it hold anywhere from a few dozen to several...ass approximately 300 feet of underground foraging tunnels ?about 20,000 ant body-lengths. On a human scale, that's the staggering equivalent of 20 miles or mo...

Newborn neurons like to hang with the 'in' crowd

...nt—large cages filled with running wheels, colored tunnels and playmates—boost the number of neurons that manage to hook up with the existing network to 80 percent, reinforcing the observation that using one's brain cells is the best way to optimize brain function throughout one's lifetime. ...

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