Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Category: biotech/medical – Page 1,158

A physicist’s do-it-yourself art project makes vibrant images with a pair of polarizers and carefully placed layers of transparent tape.

When the COVID-19 pandemic shut down universities and offices across the world in spring 2020, finding new hobbies to stave off fear (and boredom) became paramount. While some took up cross-stitch or a new stretching routine, Aaron Slepkov, a photonics researcher at the University of Trent in Peterborough, Canada, turned to a physics-inspired art form called polage to occupy his time.

Polage, or polarization-filtered coloration, as Slepkov calls it, is a kind of collage that uses polarizers and thin films to create brightly colored artworks that transform depending on how you look at them. This metamorphosis is made possible by birefringence, an optical property of certain materials that changes the polarization state of transmitted light. Examples of birefringent materials include ice, calcite crystals, cellophane film, and transparent tape.

Read more | >

This year’s Breakthrough Prize in Life Sciences has a strong physical sciences element. The prize was divided between six individuals. Demis Hassabis and John Jumper of the London-based AI company DeepMind were awarded a third of the prize for developing AlphaFold, a machine-learning algorithm that can accurately predict the 3D structure of proteins from just the amino-acid sequence of their polypeptide chain. Emmanuel Mignot of Stanford University School of Medicine and Masashi Yanagisawa of the University of Tsukuba, Japan, were awarded for their work on the sleeping disorder narcolepsy.

The remainder of the prize went to Clifford Brangwynne of Princeton University and Anthony Hyman of the Max Planck Institute of Molecular Cell Biology and Genetics in Germany for discovering that the molecular machinery within a cell—proteins and RNA—organizes by phase separating into liquid droplets. This phase separation process has since been shown to be involved in several basic cellular functions, including gene expression, protein synthesis and storage, and stress responses.

The award for Brangwynne and Hyman shows “the transformative role that the physics of soft matter and the physics of polymers can play in cell biology,” says Rohit Pappu, a biophysicist and bioengineer at Washington University in St. Louis. “[The discovery] could only have happened the way it did: a creative young physicist working with an imaginative cell biologist in an ecosystem where boundaries were always being pushed at the intersection of multiple disciplines.”

Read more | >

A new cancer therapy that uses a modified herpes virus to attack tumor cells showed promise in early clinical trials abroad.

The drug, called RP2, completely obliterated one patient’s oral cancer. The 39-year-old told the BBC that he had cancer of the salivary glands, which continued to grow despite attempts at treatment.

He was preparing for the end of his life when he learned about the experimental drug, which was available through a phase one safety trial at the Institute of Cancer Research in the UK.

Read more | >

Dogs are amazing, and we all know it.

Dogs do a lot for us. They sniff out diseases, lead those who are blind or visually impaired, and search for humans in disaster areas. And it would come as no surprise if we told you that they could detect stress through humans’ sweat and breath, as well.

Researchers from Queen’s University, Belfast, collected sweat and breath samples of 36 participants before and after they handled a tense mental arithmetic task.

Queen’s University Belfast.

A recent study published in the journal PLOS ONE has revealed just that.

Read more | >

Including decaffeinated and instant ones.

A new study conducted by Australian scientists suggests that consuming two to three cups of decaffeinated, ground, and instant coffee can lower the risk of developing cardiovascular disease and dying early.

“In this large, observational study, ground, instant, and decaffeinated coffee were associated with equivalent reductions in the incidence of cardiovascular disease and death from cardiovascular disease or any cause,” says study author Professor Peter Kistler of the Baker Heart and Diabetes Research Institute in a media release.

“The results suggest that mild to moderate intake of ground, instant, and decaffeinated coffee should be considered part of a healthy lifestyle.”

Full Story:

SB/iStock.

Continue reading “Drinking 2 to 3 cups of coffee per day could have a surprising effect on longevity” | >

In adult mice with loss of CHD8 gene function, FDA-approved drug partially restores disrupted brain cell production

CINCINNATI, Sept. 23, 2022 /PRNewswire/ — Research led by a scientist at Cincinnati Children’s who primarily studies brain tumors may open doors for improved treatment of autism.

Autism spectrum disorder (ASD) affects about one in 40 children between ages 3 and 17, according to the National Survey of Children’s Health. Those affected often experience difficulty socializing, impaired language development, repetitive behaviors, and other symptoms. Of those tested for various genes linked to the condition, nearly everyone with disruptive mutations of the gene CHD8 has autism.

Read more | >

Advancements in 3D printing have made it easier for designers and engineers to customize projects, create physical prototypes at different scales, and produce structures that can’t be made with more traditional manufacturing techniques. But the technology still faces limitations—the process is slow and requires specific materials which, for the most part, must be used one at a time.

Researchers at Stanford have developed a method of 3D printing that promises to create prints faster, using multiple types of in a single object. Their design, published recently in Science Advances, is 5 to 10 times faster than the quickest high-resolution printing method currently available and could potentially allow researchers to use thicker resins with better mechanical and .

“This new technology will help to fully realize the potential of 3D printing,” says Joseph DeSimone, the Sanjiv Sam Gambhir Professor in Translational Medicine and professor of radiology and of chemical engineering at Stanford and corresponding author on the paper. “It will allow us to print much faster, helping to usher in a new era of digital manufacturing, as well as to enable the fabrication of complex, multi-material objects in a single step.”

Read more | >

A California university is refusing to release a cache of grisly photos of monkeys reportedly injured during experiments testing Elon Musk’s Neuralink brain implant technology, in spite of a lawsuit aiming to force the school’s hand.

In a press release, the Physicians Committee for Responsible Medicine (PCRM) advocacy group said that it had learned that the University of California, Davis is in possession of 371 photos of the experimented-upon monkeys that were subjected to Neuralink tests, which took place at the school’s veterinary lab facilities.

Earlier this year, Neuralink admitted that a fifth of the 23 rhesus macaques monkeys it used to test its brain-hacking implants had been euthanized after developing infections and malfunctions. Bolstering PCRM’s credibility, that admission came in the wake of its a complaint it filed against Neuralink.

Read more | >

“From day one, we’ve taken an aggressive public health approach to combat the spread of polio and ensure New Yorkers are protected,” Hochul said. “This declaration will bolster our ongoing efforts to protect New Yorkers against paralytic disease, prevent spread, and support our public health partners.”

Public health officials at the county level will have expanded ability to receive funding and resources for immunization clinics and conduct outreach for unvaccinated and under-vaccinated New York residents. Local health officials will be able to claim a reimbursement for these efforts, back dated to July 21 and running through Dec. 31.

“Working daily with local county health departments, our partners at CDC, and trusted leaders, the Department is working effectively to increase childhood and community vaccination rates in counties where the virus has been detected,” Bassett said. “Thanks to long-established school immunization requirements, the vast majority of adults, and most children, are fully vaccinated against polio. Our focus remains on ensuring the on-time administration of polio vaccination among young children and catching kids and adults up who are unimmunized and under-immunized in the affected areas. That work continues at full force.”

Read more | >