Bendy laser beams can examine human tissue like never before

-
Bendy laser beams can examine human tissue like never before
By The Conversation


Light-sheet fluorescence microscopy is an exciting new imaging method that harnesses thin sheets of light to make images of large biological samples such as fly and fish embryos, mice and even pieces of human tissue. And its use could lead to less intrusive and more effective diagnosis for patients. At the University of St Andrews, we have recently utilized the unusual properties of shaped laser beams to get a clearer image deeper inside specimens – using beams that bend and curve around corners and get brighter, rather than dimmer, as they travel. In contrast, if you hold a finger briefly…

This story continues at The Next Web


May 30, 2018 at 08:28PM
via The Next Web https://ift.tt/2kA4QVj

Comments

Post a Comment

Popular posts from this blog

ASMR videos could be a new digital therapy for mental health

-
Image
ASMR videos could be a new digital therapy for mental health By The Conversation You may know “ASMR” as the niche genre of YouTube video which people watch on tablets and laptops to help them relax, perhaps before bed or in the lull of a Sunday afternoon. These videos typically involve someone role-playing a mundane professional service, such as giving you a haircut, a massage, or booking you in for a doctors’ appointment. The role-plays are usually performed in whispered voices, with the “ASMRtist” (the term for the creators of these videos) focused on building a feeling of intimacy and emphasizing any crisp sounds or slow hand movements. But what exactly is ASMR, and… This story continues at The Next Web October 4, 2018 at 01:08PM via The Next Web https://ift.tt/2DTwEkg
Read more

Fairies and deepfakes: a brief history of visual trickery

-
Image
Fairies and deepfakes: a brief history of visual trickery By The Conversation “Deepfake” is the name being given to videos created through artificially intelligent deep learning techniques. Also referred to as “face-swapping”, the process involves inputting a source video of a person into a computer, and then inputting multiple images and videos of another person. The neural network then learns the movements and expressions of the person in the source video in order to map the other’s image onto it to look as if they are carrying out the speech or act. This practice was first used extensively in the production of fake pornography in late 2017 – where the faces of… This story continues at The Next Web September 25, 2018 at 07:13PM via The Next Web https://ift.tt/2Oc2SLs
Read more

This Hacker News thread is a masterclass in how to put down your damn smartphone

-
Image
This Hacker News thread is a masterclass in how to put down your damn smartphone By Bryan Clark While it’s not worth rehashing the details, I believe most of us would agree that smartphones are both good and bad. On the one hand, we have a device that holds the vast majority of human knowledge. It’s an invention responsible for a shift in power that democratizes information and empowers those most capable of dispensing it — in theory, at least. On the other, we have a doomsday device responsible for wrecking societal norms (for better or worse) and leading to a population that’s sleep deprived, anxious, and generally unhappy — among other things. Ignorance, as they say, is… This story continues at The Next Web April 25, 2018 at 04:31AM via The Next Web https://ift.tt/2HWveUq
Read more