- PhysOrg
- 20/8/20 22:19
A new Oregon State University study suggests that firefighters are more likely to be exposed to potentially harmful chemicals while on duty compared to off duty.
A new Oregon State University study suggests that firefighters are more likely to be exposed to potentially harmful chemicals while on duty compared to off duty.
Fish may not be the only victims of the pollution and hot temperatures that drove oxygen to insufficient levels in Biscayne Bay and led to a mortality event that shocked Miami residents last week.
A new measurement technology developed at the University of Bern provides unique insights into the climate of the past. Previous CO2 concentrations in the atmosphere could be reconstructed more accurately than ever before, thanks to high-resolution measurements made on an Antarctic ice core. The study, which analyzed the Earth's atmospheric composition between 330,000 and 450,000 years ago, was...
NASA provided a series of photos of Hurricane Genevieve as it affected Mexico's southern Baja California peninsula. An astronaut aboard the International Space Station provided wide-angle photos of Genevieve, showing the size of the storm. Warnings and watches are in effect on Aug. 20.
One of the top four crops grown worldwide, soybean has been an integral part of Chinese agriculture for a long time, having been domesticated more than 6000 years ago. During the domestication process, certain traits are selected that make plants easier to cultivate and cook and other traits can be lost. Wild ancestors of domesticated crops can be important reservoirs of agronomic traits that have...
A rocket is going up into space with a drag sail. The goal? For the drag sail to bring the rocket back to Earth, preventing it from becoming like the thousands of pieces of space junk in Earth's lower orbit.
Salvage crews on Thursday began the process of sinking the broken stem of a Japanese-owned ship which ran aground off Mauritius, leading to a major oil spill and ecological disaster for the Indian Ocean island.
A team of researchers from the University of Hawai'i (UH) at Mānoa School of Ocean and Earth Science and Technology (SOEST) identified a global tendency for future sea levels to become more variable as oceans warm this century due to increasing greenhouse gas emissions. Sea level variability alters tidal cycles and enhances the risks of coastal flooding and erosion beyond changes associated with...
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.
Lithium-ion batteries (LIBs) are a common type of rechargeable batteries. Their versatile nature and numerous applications in all sorts of electronic devices—from mobile phones to cars—makes them seem too good to be true. And perhaps they are: recently, there has been an increase in the number of fire-related incidents associated with LIBs, especially during charging, causing serious concerns...
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?
Biological systems come in all shapes, sizes and structures. Some of these structures, such as those found in DNA, RNA and proteins, are formed through complex molecular interactions that are not easily duplicated by inorganic materials.
As with actors and opera singers, when measuring magnetic fields it helps to have range.
California voters will be asked to approve a return to affirmative action on Nov. 3 with Proposition 16, which would restore the right of the state's colleges and universities to consider race, ethnicity and gender in admission decisions.
Three teams of researchers at Clemson University have joined forces to unravel some of the mysteries surrounding perovskite nanocrystals, which are semiconductors with numerous applications, including LEDs, lasers, solar cells and photodetectors.
Atmospheric scientists have analyzed how the February near-total shutdown of mobility affected the air over China. Results show a striking drop in nitrogen oxides, a gas that comes mainly from tailpipes and is one component of smog.
Hokkaido University WPI-ICReDD researchers developed a modular catalyst that can accurately modify fatty acid derivatives in a hitherto inaccessible position. This enables the efficient production of valuable compounds from a renewable bioresource, whereas before we had to either rely on petroleum-derived resources or use complicated and costly methods.
Abrupt climate changes during the Last Glacial Period, some 115,000 to 11,700 years ago, happened at the same time across a region extending from the Arctic to the Southern Hemisphere subtropics, new research has revealed.
Greenland lost a record amount of ice during an extra warm 2019, with the melt massive enough to cover California in more than four feet (1.25 meters) of water, a new study said.
Scientists studying leaves from a 23-million-year-old forest have for the first time linked high levels of atmospheric carbon dioxide with increased plant growth, and the hot climate off the time. The finding adds to the understanding of how rising CO2 heats the earth, and how the dynamics of plant life could shift within decades, when CO2 levels may closely mirror those of the distant past.
Phenology represents the seasonal dynamics of vegetation, and is an important indicator of local and regional climate change. With stronger warming trends at higher latitudes, the seasonality of vulnerable Arctic tundra is more sensitive. Many studies have reported advances in the start of growing season (SOS) in Northern Hemisphere, however, a delayed trend in SOS was reported in some recent...
Routing apps such as Google Maps or Nokia's Here platform could offer a cost-effective way of calculating emissions hotspots in real time, say researchers at the University of Birmingham.
Imagine that the size of a bacterium is measured from a distance of about 4500 light-years. This would be an incredible measurement, considering that a bacterium is so small that a microscope is required to see it, and what an enormous distance light can travel in 4500 years, given that it can round the Earth more than seven times in just one second.
Researchers from Aarhus University challenge one of the cornerstones of biochemistry, the Michaelis-Menten equation. They show that many enzymes in signaling pathways are independent of substrate concentration, because the substrate is physically connected to the enzyme. With these results, it may one day be possible to develop drugs that not only target the enzyme, but also affect how it is...
Humanity will have burned through all the natural resources that the planet can replenish for 2020 by Saturday, according to researchers who said the grim milestone is slightly later than last year after the pandemic slowed runaway overconsumption.