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'3-D towers' of information double data storage areal density

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TechAndComputer (Apr. 20, 2011) — Using well-known patterned media, a team of researchers in France has figured out a way to double the areal density of information by essentially cutting the magnetic media into small pieces and building a "3D tower" out of it.

This greatly enhances the amount of data that can be stored in a magnetic storage device and provides a method to reach beyond a wall of physical limits that the currently used technology...

TechAndComputer (Apr. 20, 2011) — Using well-known patterned media, a team of researchers in France has figured out a way to double the areal density of information by essentially cutting the magnetic media into small pieces and building a "3D tower" out of it.

This greatly enhances the...

Quantum hot potato: Researchers entice two atoms to swap smallest energy units

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TechAndComputer (Feb. 24, 2011) — Physicists at the National Institute of Standards and Technology (NIST) have for the first time coaxed two atoms in separate locations to take turns jiggling back and forth while swapping the smallest measurable units of energy. By directly linking the motions of two physically separated atoms, the technique has the potential to simplify information processing in future quantum computers and simulations.

Described...

TechAndComputer (Feb. 24, 2011) —...

Security and privacy issues in the PDF document format

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TechAndComputer (Feb. 22, 2011) — UPM Facultad de Informática researchers compile information on security and privacy for authors or readers of PDF documents, the most popular format for publication of digital documents.

This work by researchers from the Universidad Politécnica de Madrid's Facultad de Informática surveys security and privacy threats related to digital document publishing. It addresses publisher-related information that is leaked o...

TechAndComputer (Feb. 22, 2011) —...

Security weaknesses in file-sharing methods used in clinical trials revealed

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TechAndComputer (Feb. 17, 2011) — Patients who participate in clinical trials expect that their personal information will remain confidential, but a recent study led by Dr. Khaled El-Emam, Canada Research Chair in Electronic Health Information at the CHEO Research Institute, found that the security practices used to transfer and share sensitive files were inadequate.

The two-part study, entitled "How Strong Are Passwords Used to Protect Personal...

TechAndComputer (Feb. 17, 2011) —...

US Secret Service moves tiny town to virtual tiny town: Teaching Secret Service agents and officers how to prepare a site security plan

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TechAndComputer (Feb. 16, 2011) — Chemical releases, suicide bombers, air and subsurface threats: the U.S. Secret Service needs to be prepared to handle these real-life incidents. Training to respond to such incidents, however, has been more theoretical than practical.

Now, with help from the Department of Homeland Security (DHS) Science & Technology Directorate (S&T), the Secret Service is giving training scenarios a high-tech edge:...

TechAndComputer (Feb. 16, 2011) — Chemical...