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The estimated time to clear surgeries postponed in Ontario because of the coronavirus disease 2019 (COVID-19) pandemic is 84 weeks, with a target of 717 surgeries per week, according to a new modelling study in CMAJ (Canadian Medical Association Journal).
Almost 100 years ago, there was a strange, slow-motion takeover of the Great Plains. During the Dust Bowl of the 1930s, as a historic heatwave and drought swept the middle of the United States, there was a dramatic shift in the types of plants occupying the region.
Grasses more common in the cooler north began taking over the unusually hot and dry southern plains states that were usually occupied by other native grasses.
Johns Hopkins Medicine researchers have added to evidence that a gene responsible for turning off a cell's natural "suicide" signals may also be the culprit in making breast cancer and melanoma cells resistant to therapies that use the immune system to fight cancer. A summary of the research, conducted with mice and human cells, appeared Aug. 25 in Cell Reports.
DALLAS - Sept. 1, 2020 - Expanded telehealth services at UT Southwestern have proved effective at safely delivering patient care during the pandemic, leading to an increase in patients even in specialties such as plastic surgery, according to a new study.
Scientists have uncovered the earliest known evidence of an insect mimicking a lichen as a survival strategy, according to new findings published today in eLife.
The study suggests that the Jurassic moth lacewing Lichenipolystoechotes mimicked the fossil lichen Daohugouthallus to help conceal itself from predators. This interaction predates modern lichen-insect associations by 165 million years, indicating that the lichen-insect mimicry (or 'mimesis') system was well established during the mid-Mesozoic period and provided lacewings with highly-honed survival strategies.
Human societies developed food preferences based on a blend of what was available and what the group decided it liked most. Those predilections were then passed along as part of the set of socially learned behaviors, values, knowledge, and customs that make up culture. Besides humans, many other social animals are believed to exhibit forms of culture in various ways, too.
In fact, according to a new study led by Harvard primatologists Liran Samuni and Martin Surbeck, bonobos, one of our closest living relatives, could be the latest addition to the list.
First-ever study of electronic waste shredding trucks shows the need for better safety guidelines.
A new Boston University School of Public Health study published in Annals of Work Exposure and Health is the first to evaluate the exposures faced by workers in mobile e-shredding, a new service to securely destroy hard drives, laptops, and other electronics containing confidential information on site.
By examining how fruit flies use eye movements to enhance flight control with a staggeringly fast reaction speed -- about 30 times faster than the blink of an eye -- Penn State researchers have detailed a framework to mimic this ability in robotics.
The researchers described the motions of fruit flies tethered in a virtual reality flight simulator constructed with LED lights and recorded using high speed cameras, in a paper published today (Aug. 31) in the Proceedings of the National Academy of Sciences.
The key to efficiently harvesting energy from sunlight could be to find the right combinations of light-capturing materials. Researchers at KAUST have discovered that a form of iron oxide makes an excellent co-catalyst for a promising photocatalytic material called gallium nitride.
Nestled among state parks, red rock buttes and breathtaking mountain vistas, Sedona, Arizona, is one of the most popular resort towns in the American West.
Today, many Sedona visitors and residents frequently find themselves stuck in traffic, struggling to find parking or encountering crowds of people in the wilderness. Increased tourism might be one of the reasons for these issues, but another is a large commuter workforce, according to a new study by researchers at the University of Arizona and University of Utah.
Shaama Sharada calls carbon dioxide -- the worst offender of global warming -- a very stable, "very happy molecule."
She aims to change that.
Recently published in the Journal of Physical Chemistry A, Sharada and a team of researchers at the USC Viterbi School of Engineering seek to break CO2 apart and convert the greenhouse gas into useful materials like fuels or consumer products ranging from pharmaceuticals to polymers.
Your genetic code determines that you will grow two arms and two legs. The same fate is true for all mammals. Similarly, the number of fins a fish has and the number of legs and wings an insect has are embedded in their genetic code. Sea anemones, however, defy this rule and have a variable number of tentacle arms.
New research details how the complex set of molecular and fluid dynamics that comprise the glymphatic system - the brain's unique process of waste removal - are synchronized with the master internal clock that regulates the sleep-wake cycle. These findings suggest that people who rely on sleeping during daytime hours are at greater risk for developing neurological disorders.
Rice is the most consumed staple food in the world. It is especially common in Asia, where hunger concerns are prevalent.
Rice is classified as an annual plant, which means it completes its life cycle within one growing season then dies. However, in some tropical areas, rice can continue to grow year after year when taken care of properly.
Just as grass grows back in a lawn after it is mowed, rice can be cut after it is harvested, and the plant will regrow. The farming practice of cutting the rice above ground and allowing it to regrow is called ratooning.
The active ingredients found in sunscreen have detrimental effects on freshwater ecosystems, according to new research by University of Alberta biologists.
The results show that long-term exposure to ultraviolet (UV) filters--including avobenzone, oxybenzone, and octocrylene--is lethal for some organisms living in freshwater environments. One of the largest sources of UV-filter contamination in both marine and freshwater environments is from sunscreen leaching off of the skin while swimming.