ScienceDaily: Computers and Internet News |
- Drug war violence in Mexico connected with desensitization in social media
- New technique targets C code to spot, contain malware attacks
- Novel quantum dot laser paves the way for lower-cost photonics
- Physics in 3-D? That's nothing: Try 0-D
- Quantum effects: Patterns of interfering massive particles
| Drug war violence in Mexico connected with desensitization in social media Posted: 04 Mar 2014 12:45 PM PST Amid times of crisis, citizens often turn to social media as a method to share information, make observations and vent. But as a professor's research into social media use amid the Mexican drug war shows, posts can reveal growing numbness, or desensitization, during times of protracted violence and stress. |
| New technique targets C code to spot, contain malware attacks Posted: 04 Mar 2014 11:18 AM PST Researchers have developed a new tool to detect and contain malware that attempts root exploits in Android devices. The tool improves on previous techniques by targeting code written in the C programming language -- which is often used to create root exploit malware, whereas the bulk of Android applications are written in Java. |
| Novel quantum dot laser paves the way for lower-cost photonics Posted: 04 Mar 2014 10:00 AM PST With the explosive growth of bandwidth demand in telecommunications networks, experts are continually seeking new ways to transmit increasingly large amounts of data in the quickest and cheapest ways possible. Photonic devices -- which convert light to electricity and vice versa -- offer an energy-efficient alternative to traditional copper network links for information transmission. Unfortunately, these devices are also almost always prohibitively pricey. |
| Physics in 3-D? That's nothing: Try 0-D Posted: 04 Mar 2014 09:58 AM PST Zero-dimensional quantum dots could someday have a big effect on a variety of technologies, such as solar energy, lasers and medical diagnostics. This latest discovery is all about going small, but its significance is anything but. The research team's ability to control the confinement energy by varying the size of the quantum dot opens up a world of possibilities. |
| Quantum effects: Patterns of interfering massive particles Posted: 04 Mar 2014 04:12 AM PST A new study examines the nature of exchange interactions between identical particles, which only occur at the quantum level. Two-particle interference has been the focus of many studies, specifically in quantum optics with photons. However, interference between two massive, identical particles is not so well understood. Scientists have now uncovered a counterintuitive result whereby particles called bosons do not behave as expected-they are overlapping, and not interfering-due to the combination of interference and so-called exchange interaction. The latter is a quantum mechanical effect that alters their symmetry when identical particles are exchanged. |
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