Photoplethysmography (PPG) is a simple optical technique used to detect volumetric changes in peripheral blood circulation. It’s used in smart watches, for example, to monitor pulse and heart rate, but PPG biosensors are also found in millions of smartphones, but without any current clinical applications. In a study published online in the February 2021 issue…
Although it is still challenging to prevent the transmission of COVID-19, researchers at the University of Miami are using all the strategies they can to fend off the spread. That includes using cutting-edge research to detect SARS-CoV-2–the virus that causes COVID-19–in wastewater. Detecting traces of the virus in sewage flowing from campus buildings may provide…
Exposure to radiation can wreak indiscriminate havoc on cells, tissues, and organs. Curiously, however, some tissues are more vulnerable to radiation damage than others. Scientists have known these differences involve the protein p53, a well-studied tumor-suppressor protein that initiates a cell’s auto-destruct programs. Yet, levels of this sentinel protein are often similar in tissues with…
Researchers at Baylor College of Medicine and other institutions have identified a novel strategy that can eliminate bacteria in a specific location before they cause an infection. The strategy uses a phage, a virus that infects and destroys bacteria, that can specifically locate in the same place the bacteria live in the gastrointestinal tract. The…
Shiny and voluminous curls are the key to the perfect look. If your hair looks unkempt, devoid of life, the image will inevitably be ruined no matter how perfect your outfit is. If your hair gets greasy too fast, the first step is to determine the cause of this failure. The most common problem is…
2020 has dramatically changed the usual way of life and transformed entire life spheres – including fashion and beauty. We have already talked about clothes more than once: comfortable clothing items and shoes are trendy, making you feel at home. But not everything is clear with the beauty sphere. We will tell you which beauty…
A Democratic state senator in Ohio walked out of a hearing last week when he saw that dozens of spectators in the room were maskless and sitting close together. “I saw danger,” said the senator, Cecil Thomas, who added that he worries about infection risk in part because his daughter has a severely compromised immune…
On Jan. 29, Dr. Bussel sent Ms. Legaspi’s physician, Dr. Niriksha Chandrani, an email labeled “my strong recommendations,” noting that he was “very afraid” Ms. Legaspi would have a brain hemorrhage, and advising a different course of treatment. Dr. Chandrani, the chief of oncology at Elmhurst, realized that Dr. Bussel was a leading authority on…
Facebook said on Monday that it plans to remove posts with erroneous claims about vaccines from across its platform, including taking down assertions that vaccines cause autism or that it is safer for people to contract Covid-19 than to receive the vaccinations. The social network has increasingly changed its content policies over the past year…
Social media users have been captivated by the plight of a woman named Tessica Brown, her decision to use Gorilla Glue instead of hair spray and a harrowing, monthlong quest to undo a seemingly permanent hairstyle. It all started when Ms. Brown ran out of her usual hair spray, Got2b Glued. In a pinch, she…