Lifeboat Foundation

Mid-infrared lasers have been widely used in imaging, detection, diagnostics, environmental monitoring, medicine, industry, defense and others. For mid-infrared laser systems, low phonon energy gain materials are key factors.

Among these mid-infrared materials, Er³⁺-doped CaF₂ transparent ceramics are promising candidate materials because of their ultra-low phonon energy as well as excellent physical, chemical, and optical properties, which quickly attract the attention of researchers. However, traditional preparation methods can’t obtain high-quality Er³⁺-doped CaF₂ transparent ceramics.

Recently, a research team led by Prof. Zhang Long from the Shanghai Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences has developed a high quality Er³⁺-doped CaF₂ transparent ceramics by single crystal ceramization. Their study was published in Journal of the European Ceramic Society.

Circa 2018 o,.o!

Dental fillings may soon be left in the ash heap of history, thanks to a recent discovery about a drug called Tideglusib.

Developed for and trialled to treat Alzheimer’s disease, last year scientists found the drug also happens to promote the natural tooth regrowth mechanism in mice, allowing the tooth to repair cavities.

Continue reading “An Alzheimer’s Drug Has Been Shown to Help Teeth Repair Cavities Naturally” »

The pandemic has worsened the plight of postdoctoral researchers. Funders need to be offering more than moral support.

One of the most consumed drugs in the US – and the most commonly taken analgesic worldwide – could be doing a lot more than simply taking the edge off your headache, new evidence suggests.

Acetaminophen, also known as paracetamol and sold widely under the brand names Tylenol and Panadol, also increases risk-taking, according to a new study that measured changes in people’s behaviour when under the influence of the common over-the-counter medication.

“Acetaminophen seems to make people feel less negative emotion when they consider risky activities – they just don’t feel as scared,” says neuroscientist Baldwin Way from The Ohio State University.

Researchers at McMaster University have developed a new technique to tease ancient DNA from soil, pulling the genomes of hundreds of animals and thousands of plants—many of them long extinct—from less than a gram of sediment.

The DNA extraction method, outlined in the journal Quarternary Research, allows scientists to reconstruct the most advanced picture ever of environments that existed thousands of years ago.

The researchers analyzed permafrost samples from four sites in the Yukon, each representing different points in the Pleistocene-Halocene transition, which occurred approximately 11,000 years ago.

Astronauts lose bone and muscle mass on long-duration missions, but a new treatment administered to mice in space could prevent that from happening, a new study finds.

Scientists at Cold Spring Harbor Laboratory (CSHL) and Stanford University have pinpointed the circuit in the brain that is responsible for sleepless nights in times of stress—and it turns out that circuit does more than make you toss and turn. Their study, done in mice, ties the same neuronal connections that trigger insomnia to stress-induced changes in the immune system, which weaken the body’s defenses against a host of threats.

The study, reported September 9, 2020, in the journal Science Advances, connects and explains two familiar problems, says CSHL Assistant Professor Jeremy Borniger. “This sort of stress-induced insomnia is well known among anybody that’s tried to get to sleep with a looming deadline or something the next day,” he says. “And in the clinical world, it’s been known for a long time that chronically stressed patients typically do worse on a variety of different treatments and across a variety of different diseases.”

Like many aspects of the body’s stress response, these effects are thought to be driven by the stress hormone cortisol. Working in the Stanford lab of Luis de Lecea, where Borniger completed a postdoctoral fellowship prior to joining CSHL, the research team found a direct connection between stress-sensitive neurons in the brain that trigger cortisol’s release and nearby neurons that promote insomnia.

Continue reading “The neurons that connect stress, insomnia, and the immune system” »

As you get older, key genes that maintain life are no longer activated. George Church is focused on turning youth-boosting genes back on.

His company, Rejuvenate Bio, has begun clinical trials in old dogs. This will help us determine which ages of humans would best benefit. George believes they will be able to help people who are already quite old and show signs of decline. They are looking at extending absolute lifespan. Extending human lifespan will take years to get reliable results.

They have published results on three genes. Those genes already helped reverse osteoarthritis, high-fat obesity and diabetes, heart damage, and kidney disease. They will soon add cancer and neurodegenerative diseases to the list of reversible conditions.

Researchers at the University of Sheffield have developed a new compound that is able to kill both gram-positive and gram-negative antibiotic-resistant bacteria.

Gram-positive and gram-negative bacteria have different cell wall structures, but the new antibiotic compound is able to pass through the cell wall of both forms of bacteria and then bind to the DNA.

The findings, published in Chemical Science, pave the way for developing new treatments for all kinds of antibiotic resistant bacteria, including the gram-positive MRSA and gram-negative E.Coli.