It takes gangs of proteins to regulate cell reproduction, repair
DNA, and build and constantly remodel the chromatin in the cell
nucleus. One of the most active of the bunch is the protein
Asf1, found in virtually all eukaryotic cells. Scientists are
beginning to learn how
Asf1 does its many important jobs.
Windows that Switch off the Electricity
The latest in dynamic window technology is the transition-metal
switchable mirror, whose glass coating can shift back and
forth from transparent to almost completely reflective. Switchable
mirrors save energy by letting in just enough light and heat;
now researchers have found a way to make them efficiently and
economically.
A Special
Section on Global Warming: Strategies for Dealing with
Excess Carbon Underground, in the Oceans, and on Land
The Eyes of Texas Look Underground
Texans test one of the most promising technologies for storing
excess carbon produced by humans: sequestering liquid carbon
dioxide in deep
geological formations.
Robots Roam the Seas
Deep-diving
robotic floats are studying the carbon
cycle in the world's oceans for months at a time, reporting
what they learn by satellite.
Heating up the Land Where we Live
Land use doesn't just affect the rate at which the globe
is warming. The worst effects
of a hotter planet will be felt in our own backyards.
