SCIENCE IN THE NEWS DAILY
Research Illuminates How Stem Cells May Work
from the San Francisco Chronicle
UC Berkeley scientists are a step closer to understanding how a series of molecular switches can turn on or off the regenerative power of stem cells that normally build new muscle tissue after it has been damaged.
The research, conducted on laboratory mice, is years away from practical therapies for human beings. Nevertheless, this latest work, published online Sunday by the journal Nature, provides insight into how scientists are dissecting, step-by-step, the processes that govern how stem cells work.
A goal of such research is to find ways to intervene and control these molecular switches—to improve healing and perhaps slow the effects of aging.
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PODCAST & VIDEO: Engineering Around Extreme Events
Extreme events, such as super floods and hurricanes, are becoming more common, so civil engineers are trying to adapt civil infrastructure such as bridges to these unpredictable and sometimes devastating meteorological events. Engineer Ana Barros discusses how engineering can prepare us for extreme weather events, but also how changing climate and population conditions can affect the ability of infrastructure to hold up over time.
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