Telstra has revealed the addition of almost one million new mobile services in the six months to December 2011, but Sensis revenues plummeted 24 percent in 12 months.
The researchers stated, “The rapid expansion of nanotechnology has resulted in a vast array of nanoparticles that vary in size, shape, charge, chemistry, coating and solubility. Take carbon nanotubes, for example, which have been intensively studied because they have new and unusual mechanical, electronic and other properties.”
They added, “The potential toxicity of these materials has attracted attention because of their apparent similarities to asbestos and other carcinogenic fibres. Carbon nanotubes are long, thin (just nanometres in diameter) and insoluble — all factors that contribute to fibre toxicity in the lungs. A study by Andre Nel of the University of California, Los Angeles and co-workers now suggests that the hazards are best predicted by examining which nanomaterials cause most oxidative injury within cells.”
The 2008 pilot study of the Donaldson team provides a good indication into the potential problems that could be caused by carbon nanotubes. Further studies are needed to verify the team's conclusions and to perform more detailed studies of the potential association of nanotubes and cancer.
David Bass
| For the fourth year in a row, IDC has placed content security provider Websense (NASDAQ: WBSN) at the top of the IDC Worldwide Web Security 2011 –…
How to Make Business Discovery Work for Your Business
Business Discovery takes its cues from consumer apps. Like Google, it encourages us- ers to hunt for and explore data without worrying about or even noticing the underly- ing technology. Their entire experience is working within an intuitive interface to get real-time, self-service results with only minimal training. ...more
Try an easy-to-use set of web-enabled
tools for business-class productivity services. Office 365 provides
anywhere-access to email, important documents, contacts, and calendars
on almost any device.
