Tech

ANN ARBOR -- A security-token necklace, ear buds or eyeglasses developed at the University of Michigan could eliminate vulnerabilities in voice authentication -- the practice of logging in to a device or service with your voice alone.

If a robot is sent to disable a roadside bomb -- or delicately handle an egg while cooking you an omelet -- it needs to be able to sense when objects are slipping out of its grasp.

Yet to date it's been difficult or impossible for most robotic and prosthetic hands to accurately sense the vibrations and shear forces that occur, for example, when a finger is sliding along a tabletop or when an object begins to fall.

When Deborah Beck was preparing her book, Speech Presentation in Homeric Epic, her publisher suggested she make the database she had started in 2008 -- a searchable catalogue of features from every speech in the Homeric poems -- available to the public as a web application and companion resource.

Sound wave enables the sensation of hearing, and is an important way of communicating in the animal world. In physics, sound is considered as a mechanical vibration that can propagate in gases, liquids and solids. A research team from the Singapore University of Technology and Design (SUTD), led by Assistant Professor Dr Ye Ai, is studying the interactions between ultrasound (beyond the audible limit of human hearing) and micron-sized objects (e.g. biological cells) suspended in aqueous solutions.

CHARLOTTESVILLE, VA (OCTOBER 17, 2017). The majority of football players in the US (70%) are elementary and middle school students. These young athletes enthusiastically put on their gear, learn strategy, acquire skills, and participate in games with their peers. Unfortunately, like their professional counterparts these athletes sometimes get injured. Fairly often they sustain head impacts during tackling and blocking maneuvers.

BIRMINGHAM, Ala. - University of Alabama at Birmingham biomedical engineers report a significant advance in efforts to repair a damaged heart after a heart attack, using grafted heart-muscle cells to create a repair patch. The key was overexpressing a gene that activates the cell-cycle of the grafted muscle cells, so they grow and divide more than control grafted cells.

Cancer cells that survive after treatment may use the body's own immune system to wake themselves up and fuel their growth, a new study shows.

The research sheds new light on how the immune system loses its ability to keep cancer in check, leading to the patient relapsing.

And the researchers found immunotherapy could be effective at preventing relapse, by getting the body's immune response back on track.

Scientists have invented a way to morph liquid metal into physical shapes.

Researchers at the University of Sussex and Swansea University have applied electrical charges to manipulate liquid metal into 2D shapes such as letters and a heart.

The team says the findings represent an "extremely promising" new class of materials that can be programmed to seamlessly change shape. This open up new possibilities in 'soft robotics' and shape-changing displays, the researcher say.

An engineered string of micronwide beads may take up the slack where computer modeling fails researchers who study the bending, folding and other movements of polymers or biomolecules like actin and DNA.

Rice University chemical and biomolecular engineer Sibani Lisa Biswal and her students -- lead author Steve Kuei, a graduate student, and co-author Burke Garza, an undergraduate -- created strings of polystyrene beads enhanced with iron to magnetize them and with streptavidin, a natural protein that serves as a springy linker between them.

An estimated 120 million people worldwide are infected with lymphatic filariasis, a parasitic, mosquito-borne disease that can cause major swelling and deformity of the legs, a condition known as elephantiasis. Health-care workers rely on leg measurements to assess the severity of the condition. However, measuring legs that are severely swollen often proves cumbersome and impractical.