Tech
By creating conditions akin to the center of the Earth inside a laboratory chamber, researchers have improved the estimate of the age of our planet's solid inner core, putting it at 1 billion to 1.3 billion years old.
The results place the core at the younger end of an age spectrum that usually runs from about 1.3 billion to 4.5 billion years, but they also make it a good bit older than a recent estimate of only 565 million years.
Azobenzene-containing plastic film is a peculiar material; its surface can change shape when exposed to light, making it a valuable component in modern technologies/devices like TV screens and solar cells. Scientists now show that only a thin, topmost layer of the light-dependent azobenzene-containing plastic film needs to be light-sensitive, rather than the entire film, opening up new ways to potentially reduce production costs and revolutionize its use.
In a paper published in NANO, researchers from Shanghai Normal University, China prepared organophilic carbon nanodots (CNDs) using natural organic molecules in plant leaves by a one-pot green synthesis. The multi-emissive carbon dots were used as an efficient fluorescent sensor in ethanol, which have potential applications in sensing fields or energy devices.
Chronic stress increases a blood-based hormone called acyl-ghrelin for years after the initial traumatic stressor exposure in some adolescents, and those with elevated levels of the hormone are more likely to develop post-traumatic stress disorder (PTSD) and to experience more severe cases of the condition, according to a study conducted by researchers at the Icahn School of Medicine at Mount Sinai and published August 20 in JAMA Network Open.
LOS ALAMOS, N.M., August 20, 2020--Los Alamos National Laboratory computer scientists have developed a new artificial intelligence (AI) system that may be able to identify malicious codes that hijack supercomputers to mine for cryptocurrency such as Bitcoin and Monero.
Enterococcus, a genus that includes common commensal bacteria found in the gut, harbors a bacteriophage that influences the effects of various cancer immunotherapies in ways that may be clinically relevant, researchers working in mice report. The findings reveal that intestinal, microbe-specific T cell responses to bacteriophages may contribute to anticancer immune responses by cross reacting with tumor-associated antigens. This highlights microbes’ therapeutic potential in the cancer space.
Scientists have demonstrated a new way to precisely target cells by distinguishing them from neighboring cells that look quite similar.
Even cells that become cancerous may differ from their healthy neighbors in only a few subtle ways. A central challenge in the treatment of cancer and many other diseases is being able to spot the right cells while sparing all others.
Approximately four months after the initial description of cases of atypical pneumonia in Wuhan, China, in December 2019, COVID-19 had become a major pandemic threat. By April 12, 2020, around half of the world's population was in lockdown, with 1.8 million officially diagnosed cases. Scientists from the Institut Pasteur, the CNRS, Inserm and Université de Paris conducted a pilot study to evaluate the reliability of several laboratory tests with the aim of gaining a better understanding of the profile of antibody responses to SARS-CoV-2 and how the virus is spreading among the population.
Light can partake in peculiar phenomena at the nanoscale. Exploring these phenomena can unlock sophisticated applications and provide useful insights into the interactions between light waves and other materials.
Philadelphia, August 20, 2020 - Pancreatic cancer has an extremely poor prognosis; it is the third most common cause of cancer deaths in the United States.
August 20th, 2020, Hong Kong - Researchers from Johns Hopkins University in collaboration with Insilico Medicine announce the publication of a new research paper titled "GULP1 regulates the NRF2-KEAP1 signaling axis in urothelial carcinoma" in Science Signaling.
DALLAS (SMU) - Weighing up to 8,000 pounds, hadrosaurs, or duck-billed dinosaurs were among the largest dinosaurs to roam the Earth. How did the skeletons of these four-legged, plant-eating dinosaurs with very long necks support such a massive load?
A shoddily tailored suit or a shrunken T-shirt may not be the most stylish, but wearing them is unlikely to hurt more than your reputation. An ill-fitting robotic exoskeleton on the battlefield or factory floor, however, could be a much bigger problem than a fashion faux pas.
Nearly half of all COVID-19 deaths in the United States have occurred among nursing home residents, whose age, chronic medical conditions, and congregate living quarters place them and their caregivers at high risk of contracting the disease.
And yet, six months into the pandemic, more than 20 percent of nursing homes in the US continue to report severe shortages of staff and personal protective equipment (PPE), according to a new study.
A new study, published in Nutrition and Metabolism, from researchers with the University of Alabama at Birmingham's Nutrition Obesity Research Center observed improvements in body composition, fat distribution and metabolic health in response to an eight-week, very low-carbohydrate diet.