Lifeboat Foundation

Students often sacrifice sleep to study for exams, but lack of sleep can negatively impact memory. Now, University of Groningen neuroscientist Robbert Havekes has found that sleep deprivation hinders recall, not retention of information. Havekes and his team used optogenetics and the drug roflumilast to make “hidden knowledge” obtained while sleep-deprived accessible again days later. Their findings were recently published in the journal Current Biology.

Havekes, associate professor of Neuroscience of Memory and Sleep at the University of Groningen, the Netherlands, and his team have extensively studied how sleep deprivation affects memory processes. “We previously focused on finding ways to support memory processes during a sleep deprivation episode”, says Havekes.

However, in his latest study, his team examined whether amnesia as a result of sleep deprivation was a direct result of information loss, or merely caused by difficulties retrieving information.

The “one-shot” process paves the path for cutting-edge 3D cell culture methods with biomedical engineering applications, claim the scientists.

German scientists have created a new technology that helps them print 3D objects with sound waves.

The design creates pressure fields using several acoustic holograms, which can be used to print solid particles, gel beads, and even living cells, according to the study released on Thursday.

Continue reading “This tech can print 3D objects with sound in ‘one-shot’ process” »

What’s next?

Increasingly it seems there is nothing that ChatGPT cannot do, even consulting judges in cases and boosting research. Now, the AI chatbot has been found to score at or around the approximately 60 percent passing threshold for the United States Medical Licensing Exam (USMLE), “with responses that make coherent, internal sense and contain frequent insights.”

This is according to a study published on Thursday in the open-access journal PLOS Digital Health.

Continue reading “Doctor ChatGPT? AI-bot almost passes the US Medical Licensing Exam” »

The doctors explain it as a rare case of foreign accent syndrome.

A man suffering from prostate cancer started sporting an Irish accent in what is one of the few documented reports of the condition and the first ever associated with this type of cancer. Sadly, the man ultimately passed away from his disease.

A rare condition.

Continue reading “Man’s prostate cancer leads him to speak in an Irish accent” »

Rheumatoid arthritis (RA), known as “immortal cancer,” is a chronic, progressive autoimmune inflammatory disease. The development and application of an RA high-sensitivity theranostics probe can help to accurately monitor the progression and realize the efficient treatment of RA.

In a study published in Advanced Science, a research group led by Prof. Zhang Yun from Fujian Institute of Research on the Structure of Matter of the Chinese Academy of Sciences developed a dual-triggered theranostics nanoprobe based on persistent luminescence nanoparticles (PLNPs) for RA autofluorescence-free imaging-guided precise treatment and therapeutic evaluation.

The researchers first prepared a renewable near-infrared (NIR)-emitting Zn_1.3 Ga_1.4 Sn_0.3 O₄:0.5%Cr³⁺, 0.3%Y³⁺ (ZGSO) PLNPs by a facile mesoporous silica template method.

Robotic systems have become increasingly sophisticated over the past decades, improving both in terms of precision and capabilities. This is gradually facilitating the partial automation of some surgical and medical procedures.

Researchers at Tsinghua University have recently developed a soft robotic tentacle that could potentially be used to improve the efficiency of some standard medical procedures. This tentacle, introduced in IEEE Transactions on Robotics, is controlled through their novel control algorithm, together with the so-called active cooling for shape memory alloy, the actuating candidate for the robot.

Continue reading “A soft robotic tentacle controlled via active cooling” »

Sending a jolt of electricity through a person’s brain can do remarkable things. You only have to watch the videos of people with Parkinson’s disease who have electrodes implanted in their brains. They can go from struggling to walk to confidently striding across a room literally at the flick of a switch.

Stimulating certain parts of the brain can bring people in and out of consciousness. Even handheld devices that deliver gentle pulses to the brain can help older people remember things.

Continue reading “Here’s how personalized brain stimulation could treat depression” »

The University of Tennessee’s physicists have led a scientific team that found silicon—a mainstay of the soon-to-be trillion-dollar electronics industry—can host a novel form of superconductivity that could bring rapidly emerging quantum technologies closer to industrial scale production.

The findings are reported in Nature Physics and involve electron theft, time reversal, and a little electronic ambidexterity.

Superconductors conduct electric current without resistance or energy dissipation. Their uses range from powerful electromagnets for particle accelerators and medical MRI devices to ultrasensitive magnetic sensors to quantum computers. Superconductivity is a spectacular display of quantum mechanics in action on a macroscopic scale. It all comes down to the electrons.

When Srikanth Singamaneni and Guy Genin, both professors of mechanical engineering and materials science at the McKelvey School of Engineering at Washington University in St. Louis, established a new collaboration with researchers from the School of Medicine in late 2019, they didn’t know the landscape of infectious disease research was about to shift dramatically. In a conference room overlooking Forest Park on a beautiful fall day, the team had one goal in mind: tackle the biggest infectious disease problem facing the world right then.

“Srikanth and I had a vision of a simple, quantitative diagnostic tool, so we connected with infectious disease physicians here at WashU and asked them, ‘What are the most important questions that could be answered if you could get really detailed information cheaply at the point of care?’” said Genin, the Harold and Kathleen Faught Professor of Mechanical Engineering.

“Greg Storch told us that one of the most important challenges facing the field of infectious disease is finding a way to figure out quickly if a patient has a bacterial infection and should get antibiotics or has a viral infection, for which antibiotics will not be effective.”