News & Events


Professor Effros and Colleagues Appear in Scientific American


Michelle Effros, Professor of Electrical Engineering, and colleagues have written an interesting piece in Scientific American on how wireless networks that do not depend on a fixed infrastructure will allow for ubiquitous connectivity. [Scientific American Article]

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Christof Koch and Pietro Perona Found that Human Decisions are Influenced by Both Value and Saliency


Christof Koch, Lois and Victor Troendle Professor of Cognitive and Behavioral Biology and Professor of Computation and Neural Systems, Pietro Perona, Allen E. Puckett Professor of Electrical Engineering, and colleagues' research on decision making and visual saliency has found that human decisions are influenced by both value and saliency in a way that is consistent with the ideal Bayesian observer. [Abstract]

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Ali Hajimiri Named Fellow of IEEE


Congratulations to Ali Hajimiri, Professor of Electrical Engineering, who has been named Fellow of IEEE for development of high-speed silicon integrated-circuit oscillators, power amplifiers, and phased arrays. Elevation to IEEE Fellow is one of the most prestigious honors given by the IEEE which is the world's largest professional association.

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Erik Winfree Featured in Discover


The molecular computational research of Erik Winfree, Associate Professor of Computer Science, Computation and Neural Systems, and Bioengineering, focuses on understanding how chemical systems can perform information processing and how to program a set of molecules to carry out instructions. This exciting research was recently featured in Discover. [Discover Interview]

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Paul Rothemund and Colleagues Use Self-Assembled DNA Scaffolding to Build Tiny Circuit Boards


Dr. Paul Rothemund, Senior Research Associate in Bioengineering, Computer Science, and Computation and Neural Systems, and colleagues have developed a new technique to orient and position self-assembled DNA shapes and patterns--or "DNA origami"--on surfaces that are compatible with today's semiconductor manufacturing equipment. They "have removed a key barrier to the improvement and advancement of computer chips. They accomplished this through the revolutionary approach of combining the building blocks for life with the building blocks for computing," said Professor Ares Rosakis, Chair of Division of Engineering and Applied Science and Theodore von Kármán Professor of Aeronautics and Mechanical Engineering. [Caltech Press Release]

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Antonio Rangel Pinpoints the Mechanisms of Self-Control in the Brain


Caltech Researchers Pinpoint the Mechanisms of Self-Control in the Brain. Study of dieters shows how two brain areas interact in people with the willpower to say no to unhealthy foods. "A very basic question in economics, psychology, and even religion, is why some people can exercise self-control but others cannot," notes Antonio Rangel, a Caltech Associate Professor of Economics and the paper's principal investigator. [Caltech Press Release]

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Pietro Perona Trains Computers to Analyze Fruit-Fly Behavior


Researchers led by Pietro Perona, the Allen E. Puckett Professor of Electrical Engineering, and David J. Anderson, the Roger W. Sperry Professor of Biology and a Howard Hughes Medical Institute Investigator, have trained computers to automatically analyze aggression and courtship in fruit flies, opening the way for researchers to perform large-scale, high-throughput screens for genes that control these innate behaviors. The program allows computers to examine half an hour of video footage of pairs of interacting flies in what is almost real time; characterizing the behavior of a new line of flies "by hand" might take a biologist more than 100 hours. "This is a coming-of-age moment in this field," says Perona. "By choosing among existing machine vision techniques, we were able to put together a system that is much more capable than anything that had been demonstrated before." This work is detailed in the April issue of Nature Methods. [Caltech Press Release]

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Ali Hajimiri Awarded $6 Million to Develop Self-Healing Circuits


Over the past few decades, the transistors in computer chips have become progressively smaller and faster, allowing upwards of a billion individual transistors to be packed into a single circuit, thus shrinking the size of electronic devices. But these circuits have an intractable design flaw: if just a single transistor fails, the entire circuit also fails. One novel way around the problem is a so-called self-healing circuit. Such circuits are "inspired by biological systems that constantly heal themselves in the presence of random and intentional failures," says Caltech professor Ali Hajimiri.

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Sander Weinreb Awarded Grote Reber Medal


The 2008 Grote Reber Medal for lifetime innovative contributions to radio astronomy has been awarded to Sander Weinreb, Faculty Associate in Electrical Engineering. Weinreb is being honoured for his pioneering developments of novel techniques and instrumentation over nearly half a century which have helped to define modern radio astronomy.

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Changhuei Yang Develops "Microscope on a Chip"


Changhuei Yang, Assistant Professor of Electrical Engineering and Bioengineering, and colleagues have turned science fiction into reality with their development of a super-compact high-resolution microscope, small enough to fit on a finger tip. This "microscopic microscope" operates without lenses but has the magnifyingpower of a top-quality optical microscope, can be used in the field to analyze blood samples for malaria or check water supplies for giardia and other pathogens, and can be mass-produced for around $10. [Caltech Press Release]

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