Monday, November 27, 2006
In an article in the November 9, 2006, issue of the journal Neuron, published by Cell Press, Kimihiro Nakamura and colleagues report experiments with human volunteers demonstrating such "top-down" processing of subliminal information.
Guo's research team has tested the absorption capabilities for the black metal and confirmed that it can absorb virtually all the light that fall on it, making it pitch black.
Thursday, November 09, 2006
Monday, October 30, 2006
Close up of the chain of magnetite crystals.
Magnetotactic bacteria are among the bacteria types currently being studied. Their magnetic properties enable their application for wastewater treatment i.e. the clean-up of hazardous metals such as those encountered in the nuclear and heavy metal producing industries.
Cyberkinetics' technology allows for an extensive amount of electrical activity data to be transmitted from neurons in the brain to computers for analysis. In the current BrainGate™ System, a bundle consisting of one hundred gold wires connects the array to a pedestal which extends through the scalp. The pedestal is connected by an external cable to a set of computers in which the data can be stored for off-line analysis or analyzed in real-time. Signal processing software algorithms analyze the electrical activity of neurons and translate it into control signals for use in various computer-based applications.
An invisibility cloak that works in the microwave region of the electromagnetic spectrum has been unveiled by researchers in the US. The device is the first practical version of a theoretical set-up first suggested in a paper published earlier in 2006.
Saturday, October 28, 2006
The first known organisms that live totally independently of the sun have been discovered deep in a South African gold mine.
The bacteria exist without the benefit of photosynthesis by harvesting the energy of natural radioactivity to create food for themselves. Similar life forms may exist on other planets, experts speculate.
Using a technique called cluster analysis, he and Brown analyzed data gathered by previous color survey researchers. This approach helped them measure the similarity across all the different cultures in terms of how each applies name to color.
Wednesday, October 18, 2006
Physics researchers at Illinois not only have discovered an unusual phenomenon in which ultra-narrow wires show enhanced superconductivity when exposed to strong magnetic fields, they also have developed a theory to explain it.
A new motor designed by scientists from Japan offers the best of both worlds: the living and the non-living. The group built a hybrid micromachine that is powered by gliding bacteria which travels on an inorganic silicon track and pushes a silicon dioxide rotor. The combination takes advantage of the precise engineering of synthetic devices along with the efficient energy conversion and potential for self-repair of biological systems.
Friday, October 13, 2006
Quasars are the brightest things in the universe.
For the first time, astronomers have looked inside quasars -- the brightest objects in the universe -- and have seen evidence of black holes.
The study lends further confirmation to what scientists have long suspected -- that quasars are made up of super-massive black holes and the super-heated disks of material that are spiraling into them.
The results of the Ohio State University-led project were reported Thursday at the meeting of the American Astronomical Society (AAS) High Energy Astrophysics Division in San Francisco.
"There are many models that try to describe what's happening inside a quasar, and before, none of them could be ruled out. Now some of them can," said Xinyu Dai, a postdoctoral researcher at Ohio State. "We can begin to make more precise models of quasars, and gain a more complete view of black holes."
In this review we chart recent advances in what is at once an old and very new field of endeavour — the achievement of control of motion at the molecular level including solid-state and surface-mounted rotors, and its natural progression to the development of synthetic molecular machine
Saturday, October 07, 2006
Who Created this Project and Why?
This project was created by a group of graduate students at MIT, as part of a class assignment. The students believe strongly in the principles underlying Open Source software, and hope that you will find the website useful. The only benefits that we get from your contributions to the project is satisfaction that we have created a useful extension of the MIT community.
Thursday, October 05, 2006
Even if quantum computers can be made to work, there will still be two big obstacles preventing quantum networks becoming a reality. First, quantum bits, or qubits, stored in matter will have to be transferred to photons to be transmitted over long distances. Secondly, errors that creep in during transmission have to be corrected. Two unrelated studies have now shown how to clear these hurdles.
Wednesday, October 04, 2006
Brain-activity interpretation competition won by Italian researchers:
The Italians - Emanuele Olivetti, Diego Sona, and Sriharsha Veeramachaneni were the most accurate, achieving a correlation of .86 for basic features, such as whether an instant of the film contained music.
Thursday, September 28, 2006
Collaboration among USC, UCLA, UC Berkeley and Italian university finds strong mental link between actions and words.
The brain’s premotor cortex shows the same activity pattern when subjects observe an action as when they hear words describing the same action, the study’s authors said.
HEIDELBERG, Germany, Sept. 18 (UPI) -- Scientists in Germany say they have successfully teleported the combined quantum state of two photons.
That achievement is said to be the first for a composite system, and the researchers say their approach could lead to new ways to harness quantum effects for communication and computational purposes.
A quantum-mechanical system is characterized by a set of properties that can exist in certain possible states. For example, one property of a photon is polarization, the state of which can be horizontal, vertical or a mixture of the two. Quantum teleportation transfers the state -- in this case of the polarization -- of one object to another, which can be an arbitrary distance away.
Teleportation does not transfer energy or matter, the scientists noted.
Brain prosthetics. Telepathy. Punctual flights. A futurist's vision of where quantum computers will take us.
Science fiction, right? Sure - just like satellites, moon shots, and the original microprocessor once were. To scientists on the quantum computing frontier, this scenario is conservative.
"The age of computing has not even begun," says Stan Williams, a research scientist at Hewlett-Packard. "What we have today are tiny toys not much better than an abacus. The challenge is to approach the fundamental laws of physics as closely as we can."
Scientists say they can read a person's unconscious thoughts using a simple brain scan.
Functional MRI scans plot brain activity by looking at brain blood flow and are already used by researchers.
A team at University College London found with fMRI they could tell what a person was thinking deep down even when the individual was unaware themselves.
The findings, published in Nature Neuroscience, offer exiting new ways to probe the subconscious, said experts.
The word "biometrics" is derived from the Greek words 'bios' and 'metric' ; which means life and measurement respectively.
There are basically two types of biometrics:
1. Behavioral biometrics
2. Physical biometrics
There are many examples of biometrics being used or considered in Federal, State, local, and foreign government projects. One use is to provide robust authentication for access to computer systems containing sensitive information used by the military services, intelligence agencies, and other security-critical Federal organizations. Physical access control to restricted areas is another key application.
Fingerprint / Palm Print Retinal
Hand and Finger Geometry Vein
The Israeli-developed system combines questions and biometric measurements to determine if a passenger should undergo screening by security officials.
The trial of the Israeli-developed system represents an effort by the U.S. Transportation Security Administration to determine whether technology can spot passengers who have "hostile intent." In effect, the screening system attempts to mechanize Israel's vaunted airport-security process by using algorithms, artificial-intelligence software and polygraph principles.
An open access peer-reviewed journal
Evolutionary Psychology is an open-access peer-reviewed journal that aims to foster communication between experimental and theoretical work on the one hand and historical, conceptual and interdisciplinary writings across the whole range of the biological and human sciences on the other. We also encourage reflective and exploratory essay reviews on books that merit extensive treatment.
Friday, September 22, 2006
One of the biggest challenges in robotics engineering is mimicking the human sense of touch. The ability to respond to texture and pressure is essential for delicate tasks, such as surgery. To that end, researchers have developed a new type of sensor that has a tactile sensitivity comparable to that of human fingertips--making it 50 times more sensitive than previously existing technology.
If you sometimes have difficulty reading other people's expressions and emotions, imagine how difficult it will be for silicon-brained robots. They will only ever be able to respond to us in an appropriate way if they can understand human moods.
Image of supernovae SNLS-03D3bb. This peculiar supernova does not fit the standard model for these enormous thermonuclear explosions
Scientists at the W. M. Keck Observatory in Hawaii have discovered a supernovae that does not fit the standard model for these types of extreme explosions. The results require scientists rethink their basic understanding of how stars explode as supernovae.
Ever wondered how some people can “put themselves into another person's shoes” and some people cannot? Our ability to empathise with others seems to depend on the action of "mirror neurons" in the brain, according to a new study.
Friday, September 15, 2006
First Female Private Space Explorer
& Space Ambassador
Anousheh Ansari, has been officially named to the Soyuz TMA-9 primary crew. The first female spaceflight participant will launch from the Baikonur Cosmodrome in Kazakhstan on September 18, 2006 en route to the International Space Station (ISS) along with the Expedition 14 crew members: NASA astronaut Michael Lopez-Alegria and Russian cosmonaut Mikhail Tyurin.
Conference positions itself at the intersection of two worlds, namely, emerging nanotechnologies on one-side, and network/communication theory on the other side. The standing question that this conference will address is: What are the new communication paradigms that derive from the transition from micro- to nano-scale devices? The related degrees of freedom and constraints associated with these new technologies will change our notions about efficient network and system design. Nano-Net provides a multidisciplinary forum for the discussion of new techniques in modeling, design, simulation, and fabrication of network and communication systems at the nano-scale.
Monday, September 11, 2006
The brainchild of Alan Turing--often called the father of modern computer science--and Gordon Welchman, "bombes" such as the one the replica represents were used to decrypt more than 3,000 messages a day from the Nazi's Enigma machine.
It's No Game: IBM Uses PlayStation Chip For New Supercomputer
IBM is working with Los Alamos to install
the first phase of the latest supercomputer,
dubbed Roadrunner, by next month.
The hybrid machine will get a speed boost
enabling it to break the petaflop barrier when
the Cell processors are added to AMD's Opteron technology.
Saturday, July 29, 2006
A virtual world designed to test human telepathy has been demonstrated at the University of Manchester, UK.
Pairs of participants enter separate virtual rooms in the game and try to select which virtual object they think the other is interacting with.
Ireland's archeologists heralded as a miracle the accidental discovery of this ancient book of psalms — discovered last week when an exceptionally alert construction worker spotted something as he drove the shovel of his backhoe into a bog.
View related photos
National Museum Of Ireland / AP
Tuesday, July 25, 2006
Monday, July 24, 2006
The earliest identified neuron in the embryonic human cerebral cortex. Predecessor neuron is labeled golden, other proliferating cells are blue.
Wednesday, July 19, 2006
A drone aircraft was launched into the smoggy sky over Los Angeles on Friday, bringing technology more commonly associated with combat zones to urban policing.
The unmanned aerial vehicle (UAV), which looks like a remote-controlled airplane and weighs about 2.3 kilograms, is a prototype being tested by the Los Angeles County Sheriff's Department.
Police say the drone, called the SkySeer, could carry out dangerous tasks and free up crewed helicopters for other missions.
Monday, July 17, 2006
Contemporary robots and other cognitive artifacts are not yet ready to
autonomously operate in complex real world environments.
One of the major reasons for this failure in
creating cognitive situated systems is the difficulty in
the handling of incomplete knowledge and uncertainty
By taking up inspiration from the brains of mammals, including humans, the BACS project will investigate and apply Bayesian models and approaches in order to develop artificial cognitive systems that can carry out complex tasks in real world environments. The Bayesian approach will be used to model different levels of brain function within a coherent framework, from neural functions up to complex behaviors. The Bayesian models will be validated and adapted as necessary according to neuro-physiological data from rats and humans and through psychophysical experiments on humans. The Bayesian approach will also be used to develop four artificial cognitive systems concerned with (i) autonomous navigation, (ii) multi-modal perception and reconstruction of the environment, (iii) semantic facial motion tracking, and (iv) human body motion recognition and behavior analysis. The conducted research shall result in a consistent Bayesian framework offering enhanced tools for probabilistic reasoning in complex real world situations. The performance will be demonstrated through its applications to driver assistant systems and 3D mapping, both very complex real world tasks.
Saturday, July 15, 2006
WIRELESS WIFI COGNITIVE RADIO MOBILE TELECOMMUNICATIONS ANTENNAS RFID
Wireless communication research, long an area of strength at Virginia Tech, has become a major focus with the creation of one of the largest wireless research groups in the U.S., Wireless @ Virginia Tech, encompassing the Center for Wireless Telecommunications, Mobile and Portable Radio Research Group, and Virginia Tech Antenna Group.
Friday, July 14, 2006
Geoethical Nanotechnology Workshop to Explore Ethics of Neuronanotechnology and Future Mind-Machine Interfaces. The Terasem Movement announced today that its Second Geoethical Nanotechnology workshop will be held July 20, 2006 in Lincoln, Vermont. It will explore the ethics of neuronanotechnology and future mind-machine interfaces, including preservation of consciousness, implications for a future in which human and digital species merge, and dispersion of consciousness to the cosmos, featuring leading scientists and other experts in these areas.