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Tag: "collapse" at biology news

Computers close in on protein structure prediction

...ab. The program works on the premise that proteins collapse into their lowest energy state, like a ball that rolls down a hill until it comes to rest on level ground. The energies of hundreds of thousands of possible shapes generated by the computer are computed, and the lowest energy shape is selected as the...

Researchers discover how malaria parasite disperses from red blood cells

...Zimmerberg explained, the cell membrane appears to collapse inward upon itself and fragment into pieces. One previous theory held that the red blood cells and the merozoite-containing vacuoles inside them swelled and then burst like a balloon containing too much air. "The swelling was an artifact of too muc...

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

...rn Weddell Sea following the sudden Larsen B shelf collapse in 2002. "This is definitely the biggest thing I've ever been involved with in the Antarctic," said Eugene Domack, a professor at Hamilton College in New York and lead author of the report detailing the ecosystem. The article will be published in th...

UN: World in big ecological mess

...ter quality, creation of coastal "dead zones," the collapse of fisheries and shifts in regional climate are just some of the potential consequences of humankind's degradation of the planet's ecosystems, according to a new United Nations-backed report launched today. Humans have changed ecosystems more rapidl...

Bee mites suppress bee immunity, open door for viruses and bacteria

...native bee mite is causing the dramatic and sudden collapse of bee colonies across the country, but Penn State...on and bacteria is the cause of the two-week death collapse of hives." The mites suppressed other immune responses in the bees, leaving the bees and the coloni...

Scripps scientists find potential for catastrophic shifts in Pacific ecosystems

...l markets, which have the potential for unexpected collapse and irreversible change. Scripps Professor George Sugihara and Scripps students Chih-hao Hsieh, Sarah Glaser and Andrew Lucas conducted the study--an extension of an advanced graduate course at Scripps--that analyzed the underlying dynamics responsi...

Researchers discover underwater volcano

...nd seawater, or tsunamis that may be caused by the collapse of the newly built volcano. "It is a good idea for us to keep our eyes on this area, but there is no real reason for concern about immediate danger," said Staudigel. Three students from High Tech High in San Diego were aboard one of the two expedit...

Two are better than one

... pulls the receptors towards each other until they collapse inward like overloaded laundry lines. The stressed receptors become engulfed by the cell, and thus cease signaling. In response, the cell halts growth and, when chemotherapy is used in combination with the immunotherapy, it dies. According to Sela, ...

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