- ScienceDaily
- 20/5/14 22:42
A 2D platform of molybdenum, sulfur and selenium is adept at detecting biomolecules via surface-enhanced Raman spectroscopy. Its nonmetallic nature helps by curtailing background noise.
348 articles from THURSDAY 14.5.2020
A 2D platform of molybdenum, sulfur and selenium is adept at detecting biomolecules via surface-enhanced Raman spectroscopy. Its nonmetallic nature helps by curtailing background noise.
New 'lean lab' management principles are demonstrating benefits that include cost savings, increased productivity, and a strong safety record.
Biomedical engineers have devised a new imaging device capable of measuring both the thickness and texture of the various layers of the retina. The advance could be used to detect a biomarker of Alzheimer's disease, potentially offering a widespread early warning system for the disease.
Evolutionary biologists studying populations of hybrid fish have found two genes that contribute to melanoma - only the second time people have identified specific genes associated with dysfunction in hybrid vertebrates.
Humans have struggled to reduce the loss of livestock to carnivores for thousands of years, and yet, solutions remain elusive. According to a new study, solving this ancient puzzle requires going back to Ecology 101. Simply put, getting in the mind of predators -- considering how they hunt, how their prey behaves and the landscape -- will help wildlife managers discourage wild carnivores from...
Researchers revealed the largest and hottest shield volcano on Earth. A team of volcanologists and ocean explorers used several lines of evidence to determine P?h?honu, a volcano within the Papah?naumoku?kea Marine National Monument now holds this distinction.
Boeing X-37B to study impact of radiation and other space effects on seeds and other materialsThe US’s uncrewed X-37B military spaceplane is expected to launch from Cape Canaveral air force station, in Florida, on 16 May.The Boeing craft will be carried into orbit by a United Launch Alliance Atlas V rocket. This will be its sixth launch, and the first to be the responsibility of the...
Archaeological sites on the far southern shores of South Africa hold the world's richest records for the behavioral and cultural origins of our species. At this location, scientists have discovered the earliest evidence for symbolic behavior, complex pyrotechnology, projectile weapons and the first use of foods from the sea.
In a recently published study, researchers from the University of Hawai'i at Mānoa School of Ocean and Earth Science and Technology revealed the largest and hottest shield volcano on Earth. A team of volcanologists and ocean explorers used several lines of evidence to determine Pūhāhonu, a volcano within the Papahānaumokuākea Marine National Monument now holds this distinction.
We all carry around our own microbiome, a world of microorganisms that live on our skin and in our bodies, playing important roles in maintaining health as we interact with the rest of the world. Everywhere we go, our microbiome interacts with the microbiomes of new environments and of the people we meet (see Microbiology 101: Where People Go, Microbes Follow).
In a small pool nestled between two waterfalls in Hidalgo, Mexico, lives a population of hybrid fish—the result of many generations of interbreeding between highland and sheepshead swordtails. The lab of Molly Schumer, assistant professor of biology at Stanford University, has been collecting these fish for years to study the evolution of hybrids.
Canada's spy agencies are warning that Canadian intellectual property linked to the pandemic is a "valuable target" for state-sponsored actors — just a day after U.S. intelligence agencies raised the alarm about China-backed hacking of institutions and companies researching vaccines, treatments and tests for the...
A sandwich of molybdenum, sulfur and selenium turns out to be deliciously useful for detecting biomolecules.
For predators like wolves, cougars and snow leopards, a cow or sheep out to pasture may make for an easy and tasty meal. But when wild animals eat livestock, farmers face the traumatic loss of food or income, frequently sparking lethal conflicts between humans and their carnivorous neighbors.
It started with the front door.Adrian Gomez lives with his partner in Los Angeles, where their first few days of sheltering in place for the coronavirus pandemic proved uneventful. They worked remotely, baked, took a 2-mile walk each morning and refinished their porcelain kitchen sink. But then, one night, the doorknob began to rattle "vigorously," so loud he could hear it from across...
Scientists at the Stem Cell Research program at Boston Children's Hospital and Dana-Farber Cancer Institute/Harvard Medical School have devised a mouse model that lets researchers track every cell in the body, from the embryonic stage until adulthood. Using a "barcoding" technique and CRISPR gene editing technology, the model can identify different cell types as they emerge and what genes each is...
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Three earthquakes in the Monterey Bay Area, occurring in 1838, 1890 and 1906, happened without a doubt on the San Andreas Fault, according to a new paper by a Portland State University researcher.
A new Cornell University study on bees, plants and landscapes in upstate New York sheds light on how bee pathogens spread, offering possible clues for what farmers could do to improve bee health.
Arctic sea ice helps keep Earth cool, as its bright surface reflects the Sun's energy back into space. Each year scientists use multiple satellites and data sets to track how much of the Arctic Ocean is covered in sea ice, but its thickness is harder to gauge. Initial results from NASA's new Ice Cloud and land Elevation Satellite-2 (ICESat-2) suggest that the sea ice has thinned by as much as 20%...
NASA's James Webb Space Telescope has been successfully folded and stowed into the same configuration it will have when loaded onto an Ariane 5 rocket for launch next year.
Nearly 50 years ago, Brown University physicist Michael Kosterlitz and his colleagues used the mathematics of topology—the study of how objects can be deformed by stretching or twisting but not tearing or breaking—to explain puzzling phase changes in certain types of matter. The work won Kosterlitz a share of the 2016 Nobel Prize in Physics and has led to the discovery of topological phenomena...
A new study revealed hundreds of new strong gravitational lensing candidates based on a deep dive into data. The study benefited from the winning machine-learning algorithm in an international science competition.
Crop modeling is essential for understanding how to secure the food supply as the planet adapts to climate change. Many current crop models focus on simulating crop growth and yield at the field scale, but lack genetic and physiological data, which may hamper accurate production and environmental impact assessment at larger scales.
Mammals known as scaly anteaters are natural hosts of coronaviruses, but are not likely the direct source of the recent outbreak in humans, according to a new study.
Scientists have developed a new computational approach to create artificial proteins, which showed promising results in vivo as functional vaccines. This approach opens the possibility to engineer safer and more effective vaccines.
Researchers have long known that all of the millions of malaria parasites within an infected person's body move through their cell cycle at the same time. They multiply in sync inside red blood cells, then burst out in unison every few days. But how the parasites keep time was unclear. Now, a study finds that malaria has its own internal clock that causes thousands of genes to ramp up and down at...
The parasite that causes malaria has its own internal clock, explaining the disease's rhythmic fevers and opening new pathways for therapeutics.
A newly identified 'metabolic signature' can evaluate an individual's adherence and metabolic response to the Mediterranean diet and help predict future risk of developing cardiovascular disease.
Research has given new insight into the cause of mutations in pluripotent stem cells and potential ways of stopping these mutations from occurring.
A new electronic tagging study of 100 Potomac River striped bass sheds light on rockfish migration in Chesapeake Bay and the Atlantic Coast. Researchers found that when rockfish reach 32 inches in length they leave Chesapeake Bay and become ocean migrators. Small fish stayed in the Bay had higher mortality rates than those that undertook ocean migrations.
Researchers, politicians and funding bodies find themselves in front of a unique situation: The mounting pressure to accelerate and intensify efforts to tackle the COVID-19 pandemic while handling the growing threat from all other diseases endangering our society. This balancing and how well the scientific community will respond to it will define health across the globe for years to come, argue...
Scientists have used a lightweight eye-tracking system composed of miniature video cameras and motion sensors to record head and eye movements in mice without restricting movement or behavior. Measurements were made while the animals performed naturalistic visual behaviors including social interactions with other mice and visual object tracking.
As COVID-19 continues its sweep around the globe, dialysis units have continued to be hotspots for the virus' spread. Researchers hope to combat that threat, through a novel study that used antibody testing on patients, doctors, nurses and staff within the unit to track symptomatic and asymptomatic spread in a confined space.
Prior to the COVID-19 pandemic, in cities where bike-share systems have been introduced, bike commuting increased by 20%, according to a new study.
Oxidative stress can be pathological. Now researchers report that the other end of the redox spectrum, reductive stress, is also pathological. Reductive stress causes pathological heart enlargement and diastolic dysfunction in a mouse model.
Three earthquakes in the Monterey Bay Area, occurring in 1838, 1890 and 1906, happened without a doubt on the San Andreas Fault, according to a new article.
Like crystal balls for the universe's deeper mysteries, galaxies and other massive space objects can serve as lenses to more distant objects and phenomena along the same path, bending light in revelatory ways.
A research team has predicted the presence of 'topologically protected' electromagnetic waves that propagate on the surface of plasmas, which may help in designing new plasma systems like fusion reactors.
Crop modeling is essential for understanding how to secure the food supply as the planet adapts to climate change. Many current crop models focus on simulating crop growth and yield at the field scale, but lack genetic and physiological data, which may hamper accurate production and environmental impact assessment at larger scales.
Minimizing food waste is top of mind right now during the COVID-19 global pandemic, with the public concerned about the potential ramifications for our food supply chain. But even before COVID-19, given concerns about a rapidly growing population and hunger around the world, the Food and Agriculture Organization of the United Nations (FAO) issued a global call for zero tolerance on food waste....
Fusarium wilt is one of the most economically important diseases of watermelon and a major problem to growers worldwide. In the past, watermelon growers based in the Southeastern United States were able to use methyl bromide to manage this disease, but this is no longer an option due to environmental concerns.
NHS’s first breakdown of underlying health conditions also finds 18% had dementia Coronavirus – latest updatesSee all our coronavirus coverageOne in four people who have died in hospital with Covid-19 also had diabetes, the NHS’s first breakdown of underlying health conditions among the fatalities shows.Of the 22,332 people who died in hospital in England between 31 March and 12 May, 5,873...
In the past couple of years, if you lived in a major, or even mid-sized city, you were likely familiar with bike-share bikes.
Wavelike, collective oscillations of electrons known as "plasmons" are very important for determining the optical and electronic properties of metals.
While most Romans found Italy's coronavirus quarantine a real buzz kill, the city's bees had a field day.
A new electronic tagging study of 100 Potomac River striped bass sheds light on rockfish migration in Chesapeake Bay and the Atlantic Coast. University of Maryland Center for Environmental Science researchers found that when rockfish reach 32 inches in length they leave Chesapeake Bay and become ocean migrators. Small fish stayed in the Bay had higher mortality rates than those that undertook...
Newly released genomes from Neolithic East Asia have unveiled a missing piece of human prehistory, according to a study conducted by Prof. Fu Qiaomei's team from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences.
Corn cultivation spread from Mesoamerica to what is now the American Southwest by about 4000 B.C., but how and when the crop made it to other parts of North America is still a subject of debate. In a new study, scientists report that corn was not grown in the ancient metropolis of Cahokia until sometime between A.D. 900 and 1000, a relatively late date that corresponds to the start of the city's...
From vast herds of wildebeest thundering across the Serengeti to a malaria-laden mosquito silently stalking a human host, the movement of animals has effects that reverberate throughout the biosphere. The way that animals move governs many ecological interactions including predation, disease transmission, and human-wildlife conflict. Encounter rates, which quantify how often moving individuals...