April 17, 2006


Nano electricity

A nanoscale forest of zinc oxide nanowires converts motion and vibration to electricity. The device could be used to power microscopic devices, including sensors implanted in the body. (Piezoelectric Nanogenerators Based on Zinc Oxide Nanowire Arrays, Science, April 14, 2006)

A why interface

A software framework allows programmers to build interaction techniques that let users ask why and why not questions about features of programs or actions that programs perform. The interactions could make it easier for people to learn to use programs and to understand programs' automatic features. (Answering Why and Why Not Questions in User Interfaces, Computer-Human Interaction (CHI) 2006, April 22-28, Montréal, Canada)

DNA copier flags toxins

A highly sensitive method of detecting biotoxins makes use of tiny, cell-like sacs that each contain 60-odd DNA strands. When a sac encounters a biotoxin it breaks open to release the DNA strands; once released the DNA replicates many times and so can easily be detected to indicate the biotoxin. (A Liposome-PCR Assay for the Ultrasensitive Detection of Biological Toxins, Nature Biotechnology, published online April 16, 2006)

Camera phone mouse

An interface for large displays lets people control the cursor using only a camera-equipped cellphone that communicates with the computer controlling the display. Previous large-display control techniques use one or more additional cameras or special markers in the display image. (Direct Pointer: Direct Manipulation for Large-Display Interaction Using Handheld Cameras, Computer-Human Interaction (CHI) 2006, April 22-28, Montréal, Canada)

Blue betters white LEDs

The addition of blue fluorescent molecules boosts white organic light-emitting diode performance by 20 percent, moving cheap, energy-efficient solid-state lighting a step closer to reality. (Management of Singlet and Triplet Excitons for Efficient White Organic Light-Emitting Devices, Nature, April 13, 2006)

Nanowire photon detector

Diodes made of crossed silicon-cadmium sulfide nanowires amplify the electrical current generated when light hits the devices. Closely spaced arrays of the sensitive photon detectors could be used as sensors and scientific imaging systems. (Nanoscale Avalanche Photodiodes for Highly Sensitive and Spatially Resolved Photon Detection, Nature Materials, published online April 16, 2006)


View from the High Ground: Cornell's Jon Kleinberg
Six degrees of separation, buying gasoline by the molecule, the science of popularity, all just getting along online, intellectual prosthetics, Big Science, making up questions, and telling stories.

How It Works: Quantum computing: qubits
Photons, electrons and atoms, oh my! These particles are the raw materials for qubits, the basic building blocks of quantum computers.

News RSS feed
Blog RSS feed
Bookshelf RSS feed

New: TRN's Internet Services
TRN's Jobs Center

April 12, 2006
Toward implantable sensors
Highlights from the Body Sensor Networks 2006 workshop at MIT last week:

A computer vision system from the MIT Media Lab uses tiny wearable cameras to read facial expressions in order to determine if someone is paying attention, bored, confused, in disagreement, or concentrating. The researchers are working with an autism center to use the system as a "social-emotional prosthetic" to help people with autism communicate...

April 5, 2006
Kurzweil keynote

March 16, 2006
DNA nanotech made easy

March 12, 2006
Loneliness trumps exercise

"In most areas of science and technology, the origins of new breakthroughs can still be found in the work of a small number of people -- or even a single person -- working at their own pace on their own questions, pursuing things that interest them. "
- Jon Kleinberg, Cornell University

  Thanks to Kevin from
for technical support

     Archive     Gallery     Resources    TRN Finder     Bookshelf     Glossary

Research Directory     Events Directory      Researchers

Offline Publications     Feeds     Contribute      Under Development      T-shirts etc.      Classifieds

Forum    Comments     Feedback     About TRN     TRN Newswire and Headline Feeds for Web sites

© Copyright Technology Research News, LLC 2000-2006. All rights reserved.