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With the launch of a “national” more censored version of the Internet only a few weeks away in Iran, users are already reporting increasingly limited access to certain Web sites and Web security features. A number of Internet users in Iran have for the past few days reported difficulty connecting to Web sites housed on servers outside of that country, as well as blocked access to sites such as Google and Yahoo, and to any encrypted Internet traffic, according to Iran Media Program , a project of the Center for Global Communication Studies at the Annenberg School for Communication, University of Pennsylvania. The timing coincides with potential protests to mark the first anniversary of the house arrest of lead opposition candidates Mir-Hossein Mousavi and Mehdi Karroubi.

How did coffee go from a cheap commodity to a gourmet drink? You have this man (and several other innovators) to thank. If the martini was the fuel of the Mad Men set, then espresso drinks are the life blood of the start-up entrepreneur.

Observing that certain cancer cells may exhibit greater flexibility than normal cells, some scientists believe that this capability promotes rapid tumor growth. Now computer simulations developed by Boston University Biomedical Engineering Assistant Professor Muhammad Zaman and collaborators at the University of Texas at Austin appear to support this view.

Nobel Prize winner C. V

A team of University of California, San Diego researchers has built the smallest room-temperature nanolaser to date, as well as an even more startling device: a highly efficient, "thresholdless" laser that funnels all its photons into lasing, without any waste.

By harnessing quantum dots—tiny light-emitting semiconductor particles a few billionths of a meter across—researchers at the University of Washington (UW) have developed a new and vastly more targeted way to stimulate neurons in the brain. Being able to switch neurons on and off and monitor how they communicate with one another is crucial for understanding—and, ultimately, treating—a host of brain disorders, including Parkinson's disease, Alzheimer's, and even psychiatric disorders such as severe depression. The research was published today in the Optical Society's (OSA) open-access journal Biomedical Optics Express.

(PhysOrg.com) -- A team from the National Institute of Standards and Technology and the University of Maryland has found an iron-based superconductor that operates at the highest known temperature for a material in its class. The discovery inches iron-based superconductors—valued for their ease of manufacturability and other properties—closer to being useful in many practical applications.

Shippensburg University students can buy emergency contraception for $25 from a vending machine, guaranteeing more privacy

To grow, your business needs to reel in the big fish. Here's how I transformed my tiny business into one of the best-known PR firms in the United States.

The same maps that can help you find your way to the mall can help the police predict where meth labs will pop up next. Here's a look inside the strange, fascinating world of geospatial predictive analysis. Google Maps is a lifesaver

An MBA can cost you upward of $100,000. Will the investment really to pay off?

We can't all be morning people, but we can crib from the caffeine-stained playbooks of successful early risers. Here's how

Scientists at the University of Southampton, in collaboration with Penn State University have, for the first time, embedded the high level of performance normally associated with chip-based semiconductors into an optical fibre, creating high-speed optoelectronic function.

Scientists at the University of Southampton, in collaboration with Penn State University have, for the first time, embedded the high level of performance normally associated with chip-based semiconductors into an optical fibre, creating high-speed optoelectronic function.

A new white paper asserts that if you want to build a company, an advanced degree in a subject like engineering beats an MBA any day.