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Massachusetts Institute of Technology


Who's using your data?

Researchers at MIT's CSAIL are developing a protocol called HTTPA that automatically monitors private data transmission and allows owners to examine usage. The system uses distributed hash tables to store transaction logs on multiple servers, ensuring accessible data even if some servers go down.

When good people do bad things

Researchers studied brain activity in a part of the brain involved in thinking about oneself and found that group dynamics can lead individuals to harm others outside their group. This is due to reduced medial prefrontal cortex activation when seeing moral statements, which correlates with increased likelihood of harming opponents.

The whole truth

Researchers found that children can tell when adults are telling the truth but not the whole truth, and compensate by exploring more on their own. This skill is crucial for learning from others, as much knowledge comes from other people. Children's ability to evaluate information helps them adjust their trust in teachers.

Inside the adult ADHD brain

Researchers discovered distinct patterns of brain activity in adults with and without childhood ADHD, finding that those who recovered from the disorder have restored normal synchrony in their brain's default mode network. However, both groups showed impaired executive function, a sign separate from ADHD.

Spruce up your selfie

Researchers developed an algorithm that can transfer distinctive visual styles from acclaimed photographers to cellphone photos, improving close-up portraits. The technique uses a local transfer approach and multiscale matching to enhance image characteristics while minimizing errors.

Eumelanin's secrets

Eumelanin, the primary pigment in human skin, hair, and eyes, has been found to absorb a broad spectrum of sunlight due to its unique physical arrangement. Researchers have identified that disorder in the material's structure plays a crucial role in its broadband blocking ability.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateMay 22, 2014

A new way to harness waste heat

Researchers at MIT and Stanford University have developed a new approach to harnessing low-temperature waste heat, leveraging the thermogalvanic effect to produce electricity. The system combines battery charging-discharging cycles with heating and cooling, allowing for efficient energy conversion even with small temperature differences.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateMay 21, 2014

Illuminating neuron activity in 3-D

Scientists have developed a new imaging system that reveals neural activity throughout the brains of living animals in 3-D. The technique allows for simultaneous imaging of every neuron in the worm Caenorhabditis elegans and the entire brain of a zebrafish larva, providing a more complete picture of nervous system activity.

SourceMassachusetts Institute of Technology·JournalNature Methods·DateMay 18, 2014

Glasses-free 3-D projector

A new glasses-free 3D projector design uses multiperspective technology to provide a cheaper alternative to holographic video, improving resolution and contrast. The system can also enhance conventional 2D video with increased brightness and sharpness, making it an attractive transitional technology for content producers.

Terahertz imaging on the cheap

Researchers at MIT describe a new technique that could reduce the number of sensors needed for terahertz or millimeter-wave imaging by a factor of 10, enabling more practical high-resolution imaging systems. The technique exploits the sparsity of scenes in certain ranges, allowing for efficient reconstruction without aliasing.

SourceMassachusetts Institute of Technology·JournalIEEE Transactions on Antennas and Propagation·DateMay 5, 2014

Delving deep into the brain

Researchers at MIT have developed a technique that allows them to track neural communication in the brain over time, offering a new window on brain function. The technique uses magnetic resonance imaging (MRI) along with a specialized molecular sensor to monitor dopamine levels in specific regions of the brain.

Solving a mystery of thermoelectrics

Researchers have finally found a theoretical explanation for the differences in thermal conductivity between similar materials, which could lead to the discovery of new thermoelectric materials. The findings are reported in the journal Nature Communications and were partly supported by the U.S. Department of Energy.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateApr 29, 2014

Targeting cancer with a triple threat

Researchers have created nanoparticles that can deliver three or more different chemotherapy drugs to cancer cells, offering new hope for more effective treatments. The particles are designed to release the drugs in response to specific triggering mechanisms, reducing side effects and increasing efficacy.

SourceMassachusetts Institute of Technology·JournalJournal of the American Chemical Society·DateApr 15, 2014

How the brain pays attention

A new study reveals that the brain achieves focused attention on faces or other objects by synchronizing activity in the inferior frontal junction (IFJ) with specific brain regions. The IFJ coordinates with the fusiform face area (FFA) and parahippocampal place area (PPA), suggesting a parallel process involving different areas.

How electrodes charge and discharge

A team at MIT has figured out a way to measure the fundamental charge transfer rate in porous battery electrodes, revealing significant surprises. The study found that the Butler-Volmer equation is inaccurate, especially at higher voltage levels, and that electron transfer between two solids determines the rate.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateApr 3, 2014

One currency, one price?

A recent study by MIT economists finds strong convergence of prices within the Eurozone, with prices differing by 30-50% lower than in neighboring countries. The research suggests that the common currency drives identical pricing, contradicting previous findings.

SourceMassachusetts Institute of Technology·JournalThe Quarterly Journal of Economics·DateApr 1, 2014

New way to filter light

Researchers at MIT have developed a new system that selectively filters light waves based on their direction of propagation. The technique, which uses a stack of ultrathin layers with precise thickness control, could improve efficiency in solar photovoltaics, detector systems for telescopes and microscopes, and display screens.