21 Oct

It’s a drug that has given men a new lease on life, allowing them to enjoy an active sex life well into old age. But at what price? A new case study reveals that high doses of the drug sildenafil, known by the brand name Viagra, can permanently damage a person’s vision. Researchers looked closely at the case of a 31-year-old man complaining of red-tinted vision after taking Viagra.

The patient had purchased liquid sildenafil citrate online and admittedly taken a much higher dose than recommended. Soon after arriving at an urgent care clinic with the issue, he was diagnosed with persistent retinal toxicity and the condition was linked with the high levels of sildenafil in his system. The medication had damaged his outer retina, the experts said. A full year later, the man’s vision has still not improved despite undergoing various treatments.

19 Oct

A new diagnostic tool produced by researchers at SINTEF, a Norwegian development organization, and Dr.  Llewellyn Padayachy, a South African pediatric neurosurgeon, incorporates ultrasound to gauge pressure on the brain after an accident. This new technology, which was validated by a recent study, would permit first responders to conduct an exam at accident scenes by scanning the patient's eye.

Previously, emergency workers had to transport the patient to an operating room where a hole was drilled in the skull for the insertion of a sensor to measure intracranial pressure that can result in damage to the spinal cord as well as brain damage.

Padayachy came up with the concept for the novel device while collaborating with Norwegian ultrasound researchers at one of South Africa's biggest pediatric heath institutions, the Red Cross War Memorial Children’s Hospital in Cape Town.

17 Oct

The National Institute of Advanced Industrial Science and Technology in Japan has devised a robot that can lend a hand on construction sites. Due to the prototype robot's relatively slow movements, it is intended to help in situations where there aren't enough workers to get the job done.

From initial reports, though, the creature is said to perform tasks with remarkable accuracy, which suggests that as the robot is developed to pick up speed, it could one day replace human workers.

A demonstration video shows the robot placing a section of drywall into place and securing it to studs with screws. It's the kind of task that demonstrates a machine's ability to replicate movements that require human flexibility, particularly in an environment -- a building site -- where many different operations are occurring simultaneously.

15 Oct

Imagine if you could use technology to reprogram your cells. A team of researchers may have found a way to do just that. The best news of all is, one of the things that could be reprogrammed is cancer growth.

A team at Caltech has created a biological toolkit that has the ability to create circuits, which then can program new behaviors into a body’s cells. The team used its toolkit of proteins on human cells that were growing in a lab.

13 Oct

The days of controlling a drone using a remote controller are numbered. Scientists have been working on a variety of ways to fly drones, but the latest could be the most interesting of all. Using eye-tracking glasses, pilots may soon be able to control drone movements by merely moving their eyes.

The Tobii Pro Glasses 2 have been targeted toward other applications, including learning more about how humans look at specific objects for testing purposes. But a team of engineers from New York University, the University of Pennsylvania, and the U.S. Army Research Laboratory saw its potential when it comes to drones. The team has found a way to use the eye-tracking technology to maneuver the popular tech toys.

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