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Tag: "errors" at biology news

Killing the messenger RNA -- But which one?

...f genes from their unedited counterparts. Further, errors in the editing can lead to serious health problems. The team’s findings appear in the February 23 issue of Science. "What we found was that, in certain cases, edited versions of these microRNAs are being produced that differ from the unedited vers...

Surgeons with video game skill appear to perform better in simulated surgery skills course

...a-half day course that scores surgeons on time and errors during simulated surgery drills. During the study...re than three hours per week made 37 percent fewer errors [in the Top Gun course], were 27 percent faster and scored 42 percent better overall than surgeons w...

Are journal rankings distorting science?

...t a bad paper may be cited because of its infamous errors and that a journal’s rank has no bearing on the quality of individual papers it publishes. But more worrying is the trend towards using impact factors to guide decisions on research funding. This has been particularly noticeable in the UK, where univ...

RNA enzyme structure offers a glimpse into the origins of life

...A capable of making copies of itself; mutations or errors in some copies would result in variations that would be acted on by Darwinian natural selection, and the molecules would evolve into bigger and better ribozymes. That's what makes this structure so interesting." Robertson and Scott determined the ...

Do fruit flies have free will?

...stimuli, they attribute this variability to random errors in a complex brain." Using a combination of automated behavior recording and sophisticated mathematical analyses, the international team of researchers showed for the first time that such variability cannot be due to simple random events but is gener...

Herpes virus hijacks DNA repair process

...ction. The DNA damage response normally fixes DNA errors caused by radiation or other environmental factors, or mistakes accidentally introduced when cells copy their genetic material prior to dividing. In the murine (or mouse-infecting) herpes virus they studied, researchers at Washington University Sc...

Stroke study sheds light on left-right brain divide

...in damage who most frequently failed to spot their errors and had difficulty keep track of the changing task rules. The group with damage to the left frontal lobes corrected 68% of mistakes in the test, whereas people with right-brain damage only made corrections to 30% of their errors. This suggests that p...

Math that powers spam filters used to understand how brain learns to move our muscles

...hort term memory was periodically purged, repeated errors were transferred to a long term memory bank. The computer learner was tasked with “looking” at a spot of light. Then all the lights were turned off. The spot of light was turned on again and the computer learner was again asked to look at that sa...

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