Tag: "talks" at biology news

Modeling the restless brain

...es in Australia. When a person reads a book or talks with a friend, task-related neural activity occurs in different regions of the brain, but this activity only accounts for around 2 to 5 percent of the total activity of the brain. Fluctuations of similar magnitude -- the ones studied by Sporns and Ho...

Fitness has fallen since the days of Ancient Greece

...or Rankov co-authored. For example, one account talks of the Athenians quelling a revolt in Mytilene on the island of Lesbos in the eastern Aegean. The Athenian assembly ordered all Mytiline's men to death, and despatched a trireme to carry out this command. The next day, the assembly relented and sent ...

Nature's process for nitrogen fixation caught in action

... and then followed its progress. The PNAS article talks about the challenge of identifying, trapping, synthesizing, and inserting the mimic and methods for observing the reduction of N2. Hoffman, Dean and Seefeldt have been working for years to figure out how to trap and characterize nitrogenase inter...

Slow brain waves play key role in coordinating complex activity

...hy of oscillations that can control how one neuron talks to another neuron, or how one brain area talks to another brain area," said lead author Ryan Canolty, a UC Berkeley graduate student in the Helen W...

Twenty Years of Malaria Research: Outcomes and Perspectives

... by internationally-renowned experts and featuring talks and debates on a variety of topics related to malaria, from epidemiology to therapeutics and from immunity to socio-economics. As the Shoklo Malaria Research Unit (SMRU) in Mae Sot, Thailand, which borders Burma, celebrates its twentieth anniversar...

Study may help slay 'Yellow Monster'

...t was passed on to the people through booklets and talks at the chapter houses," said Sheryl Martinez, a junior in NAU's nursing program and another member of Stearns' research group. Martinez, also a native of Shiprock, hopes to return to her community and put her knowledge to work after graduation. The ...

Paleontologists learn how not to become a fossil

...missing from the fossil record and why. "Everyone talks about how imperfect the fossil record is, but not many people do anything about it," said David Jablonski, the William Kenan Jr. Professor in Geophysical Sciences at the University of Chicago. "We're not doing this for the sake of knowing more about ...

Neuroscientists discover new cell type that may help brain maintain memories of smells

... olfactory system. Discovering how one brain cell talks with another brain cell remains one of the most important but technically challenging questions in neuroscience. The Case researchers faced two significant hurdles in trying to answer this question in the olfactory system. The first was the shear n...

Infants can organise visual information at just four months

...gories over the timescale studied. "The literature talks about the short-looking and long-looking categories, and links to later abilities are suggested. Unusually, we looked at this longitudinally, so we were able to pick up that these categories weren't stable" says Dr Farran. "So these differences can't...

Mouse genome much more complex than expected

... long passages devoid of meaning ?Professor Zimmer talks of transcription 'forests' and 'deserts'. Although the DNA encyclopedia only has a few tens of thousands of intelligible 'pages', the researchers counted more than 180,000 different mRNAs. 'The genetic information is arranged on the DNA in a very co...

Frog peptides block HIV in lab study

...o was stimulate an area of the brain and see if it talks to another part. We have a tool to do that now," says Tononi, referencing one of only a handful of machines in the world capable of stimulating precise regions of the brain from outside the skull while recording the resulting electrical responses. T...

Deep sleep short-circuits brain's grid of connectivity

...o was stimulate an area of the brain and see if it talks to another part. We have a tool to do that now," says Tononi, referencing one of only a handful of machines in the world capable of stimulating precise regions of the brain from outside the skull while recording the resulting electrical responses. T...

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