Progress for Paraplegics

Caltech engineers, who last year helped enable a paraplegic man to stand and move his legs voluntarily, have developed a new method to automate the system, which provides epidural electrical stimulation to people with spinal-cord injuries. This advancement could make the technology widely available to rehab clinics and thousands of patients worldwide. It would also reduce the system's training time and costs for hospitals and clinics and make it easier for patients to continue their rehabilitation at home.

Reconsidering the Global Thermostat

Many ideas have been floated about how to potentially manipulate the planet's climate in order to counteract the effects of global warming—a concept known as geoengineering. But because some of these efforts could affect areas of the planet inequitably, geoengineering has often raised an ethical question: Whose hand would control the global thermostat? Now a team of researchers from Caltech, Harvard, and the Carnegie Institution says there doesn't have to be just a single global control.

Technology Has Improved Voting Procedures

Thanks to better voting technology over the last decade, the country's election process has seen much improvement, according to a new report released today by researchers at Caltech and MIT. However, the report notes, despite this progress, some problems remain.

Caltech Modeling Feat Sheds Light on Protein Channel's Function

Chemists at Caltech have managed, for the first time, to simulate the biological function of a channel called the Sec translocon, which allows specific proteins to pass through membranes. The feat required bridging timescales from the realm of nanoseconds all the way up to full minutes, exceeding the scope of earlier simulation efforts by more than six orders of magnitude. The result is a detailed molecular understanding of how the translocon works.

Developing the Next Generation of Microsensors

Setting the stage for a new class of motional sensors, Caltech researchers have developed a new ultrasensitive, microchip-scale accelerometer that uses laser light to measure displacement.

How I Spent My Summer Vacation

Last summer, Caltech junior Julie Jester worked on a project that might one day partially counteract blindness caused by a deteriorating retina. Her job: to help Assistant Professor of Electrical Engineering Azita Emami and her graduate students create the communications link between a tiny camera and a novel wireless neural stimulator that can be surgically inserted into the eye.

Now in its 34th year, Caltech's Summer Undergraduate Research Fellowships (SURF) program has paired nearly 7,000 students with real-world, hands-on projects in the labs of Caltech faculty and JPL staff.

Traveling with Purpose

Pamela Bjorkman has been studying HIV at Caltech since 2005. In the lab, she has made significant gains in the fight against the virus, developing antibodies that neutralize most strains. But years spent at the bench were beginning to make her feel disconnected from the possible impact of her work. So this summer she visited India, spending time with HIV-positive women and others who are at risk.

Caltech Biologist Named MacArthur Fellow

Sarkis Mazmanian, a microbiology expert at the California Institute of Technology (Caltech) whose studies of human gut bacteria have revealed new insights into how these microbes can be beneficial, was named a MacArthur Fellow and awarded a five-year, $500,000 “no strings attached” grant.

Mars Rover Finds Evidence of Ancient Streambed

An ankle- or hip-deep stream once flowed with force across the surface of Mars in the very spot where NASA's Curiosity rover is currently exploring. The finding, announced by members of the project's science team today at the Jet Propulsion Laboratory (JPL), provides new information about a once wet environment in Gale Crater, the ancient impact crater where the rover touched down in early August.

Ready for Your Close-Up?

As the saying goes, "A picture is worth a thousand words." For people in certain professions—acting, modeling, and even politics—this phrase rings particularly true. Previous studies have examined how our social judgments of pictures of people are influenced by factors such as whether the person is smiling or frowning, but until now one factor has never been investigated: the distance between the photographer and the subject. According to a new study by researchers at the California Institute of Technology (Caltech), this turns out to make a difference—close-up photo subjects, the study found, are judged to look less trustworthy, less competent, and less attractive.

Pages

Subscribe to RSS - research_news