Oddly, a network's layout barely mattered. The number of nodes needed to control a whole network mostly depends on the average number of connections per node, the researchers found. Sparse networks, such as the regulatory system controlling genes in a yeast cell, are pretty resistant to control; roughly 80 percent of the nodes need to be influenced to get the desired outcome. Dense networks, on the other hand, such as many social networks, were much easier to control: Influence roughly 20 percent of the nodes and the whole network responds.
More than 250 years ago, Robert Robinson put quill to paper and composed the words of "Come Thou Fount of Every Blessing." One of Christendom's most beloved hymns, it stirs the intellectual soul in much the same way modern worship stirs the emotional one.Relevant Magazine covers some of the history and meaning behind one of my favorite hymns.
According to Giovanni Punzi, a member of Fermilab's CDF collaboration team, we're not at discovery yet, but we're getting tantalizingly close. The first results were generated using 4.3 inverse femtobarns of data; we're now up to 7.3fb^-1, the peak is not going away, and the results are now closer to the five standard deviation standard. In addition, the detector team has gone back and eliminated some alternative explanations, like background from top quark production.Yeah, I definitely had to go look up what a barn is; I didn't learn that in school. A new particle would be cool, though.
The work, reported in Science, required 130 strands of DNA to work in a cascade of programmed chemical changes.
This result far surpasses any other published calculations or previous complexity. Reportedly, the system is also capable of mimicking the capability of a debugger or compiler. More technical information on the process is on Ars Technica.
According to research performed by a team from the University of California-San Diego, the University of California-Berkeley, and the Budapest University of Technology and Economics, just three banks are used to clear more than 95 percent of spam funds.
Today, at the D9 Conference, we demonstrated the next generation of Windows, internally code-named "Windows 8," for the first time. Windows 8 is a reimagining of Windows, from the chip to the interface. A Windows 8-based PC is really a new kind of device, one that scales from touch-only small screens through to large screens, with or without a keyboard and mouse.
A new report by research firm Battelle Technology Partnership Practice estimates that between 1988 and 2010, federal investment in genomic research generated an economic impact of $796 billion, which is impressive considering that Human Genome Project (HGP) spending between 1990-2003 amounted to $3.8 billion. This figure equates to a return on investment (ROI) of 141:1 (that is, every $1 invested by the U.S. government generated $141 in economic activity).Can we please spend more money on science and less on bailouts, please?