- PhysOrg
- 20/6/26 23:36
Reservoirs in the heart of an ancient Maya city were so polluted with mercury and algae that the water likely was undrinkable.
Reservoirs in the heart of an ancient Maya city were so polluted with mercury and algae that the water likely was undrinkable.
Fires have spread across the majority of the landscape in Angola and the Democratic Republic of the Congo in this NOAA/NASA Suomi NPP satellite image using the VIIRS (Visible Infrared Imaging Radiometer Suite) instrument from June 25, 2020. Fires of this number are not uncommon at this time of year in Africa. During the agricultural season of clearing field and planting new ones, farmers set fire...
Dust storms from Africa's Saharan Desert traveling across the Atlantic Ocean are nothing new, but the current dust storm has been quite expansive and NASA satellites have provided a look at the massive June plume. NASA-NOAA's Suomi NPP satellite showed the blanket of dust had moved over the Gulf of Mexico and extended into Central America and over part of the eastern Pacific Ocean.
Kindergartners in face masks. Closed playground structures. Random COVID-19 testing.
Workplace gender bias is being kept alive by people who think it's no longer an issue, new research suggests.
Thank goodness for the Earth's crust: It is, after all, that solid, outermost layer of our planet that supports everything above it.
In a new study, scientists from around the world—including a professor at the University of Rhode Island—warn that the threats posed by invasive alien species are increasing. They say that urgent action is required to prevent, detect and control invaders at both local and global levels.
A Woods Hole Oceanographic Institution researcher became one of just a handful of people to visit the deepest part of the ocean following a successful dive in the deep-submergence vehicle Limiting Factor on Monday.
In biology, phylogenetic trees represent the evolutionary history and diversification of species—the "family tree" of Life. Phylogenetic trees not only describe the evolution of a group of organisms but can also be constructed from the organisms within a particular environment or ecosystem, such as the human microbiome. In this way, they can describe how this ecosystem evolved and what its...
NASA-NOAA's Suomi NPP satellite provided forecasters with visible image of the Eastern Pacific Ocean's second tropical storm of the season, Boris. Boris formed just east of the Central Pacific Ocean's boundary as it was moving into that region.
Since the 1980s, in seaweed farms dotted along the coastline of the subtropical islands of Okinawa, farmers have cultivated the edible brown alga Okinawa mozuku (Cladosiphon okamuranus). Popular in Japanese cuisine, this superfood produces high levels of fucoidan—a slimy substance that has a myriad of health benefits, including the suppression of blood clots and tumors.
The more interactions and connections a firm's social media marketing strategy generates, the more customer engagement value it brings.
Subalpine ecosystems are natural laboratories to study the evolution of global warming, since their dynamics are particularly sensitive to temperature changes. However, the impacts of past pandemics and land-use changes on mountain forest dynamics are still overlooked. An international study based on the establishment date of pine trees shows that a large-scale rewilding occurred after the...
Since the discovery of graphene, two-dimensional materials have been the focus of materials research. Among other things, they could be used to build tiny, high-performance transistors. Researchers at ETH Zurich and EPF Lausanne have now simulated and evaluated one hundred possible materials for this purpose and discovered 13 promising candidates.
Using state-of-the-art ocean robots and scientific sensors attached to seals, researchers in Marine Sciences at the University of Gothenburg have for the first time observed small and energetic ocean currents in the Southern Ocean. The currents are critical at controlling the amount of heat and carbon moving between the ocean and the atmosphere—information vital for understanding our global...
In a system with self-replicating molecules, previously shown to have the capability to grow, divide and evolve, chemists from the University of Groningen have now discovered catalytic capabilities that result in a basic metabolism. Furthermore, they linked a light-sensitive dye to the molecules, which enabled them to use light energy to power growth. These findings, which bring artificial life...
Adding an exotic particle known as a Xi hyperon to a helium nucleus with three nucleons could produce a nucleus that is temporarily stable, calculations by RIKEN nuclear physicists have predicted. This result will help experimentalists search for the nucleus and provide insights into both nuclear physics and the structure of neutron stars.
Chemically engineered peptides, designed and developed by a team of researchers at Rensselaer Polytechnic Institute, could prove valuable in the battle against some of the most persistent human health challenges.
In a new study of axion motion, researchers propose a scenario known as "kinetic misalignment" that greatly strengthens the case for axion/dark matter equivalence. The novel concept answers key questions related to the origins of dark matter and provides new avenues for ongoing detection efforts. This work, published in Physical Review Letters, was conducted by researchers at the Institute for...
Finnish children will have a free hobby during the school day thanks to funding from the government of Finland. Behind the scenes the art education researchers together with different cultural organizations have worked actively to make the dream come true.
Composite binders are important materials used in furniture, flooring and other consumer products, but they can pose health hazards.
The nature of the sediments on the Basque continental shelf is very heterogeneous. From the point of view of distribution, two clearly differentiated sectors can be picked out in terms of grain size. "In the area of Bizkaia medium to coarse-sized sands predominate, whereas on the coast of Gipuzkoa there is a predomination of deposits of very fine sand, silts and clays, currently known as the...
Russian scientists from Far Eastern Federal University (FEFU), G. B. Elyakov Pacific Institute of Bioorganic Chemistry (PIBOC FEB RAS), and A.V. Zhirmunsky National Scientific Center for Marine Biology (NSCMB FEB RAS) have discovered four new steroid substances which target cells of human breast cancer, and colorectal carcinoma. They were extracted from the starfish Ceramaster patagonicus, a Kuril...
IFJ PAN scientists together with colleagues from the University of Milano (Italy) and other countries confirmed the need to include the three-nucleon interactions in the description of electromagnetic transitions in the 20O atomic nucleus. Vital for validating the modern theoretical calculations of the nuclear structure was the application of state-of-the-art gamma-ray detector systems and the...
In connection with the effects of the COVID-19 pandemic, satellite measurements made headlines showing how much the air pollutant nitrogen dioxide (NO2) had decreased in China and northern Italy. In Germany, traffic density is the most important factor. However, weather also has an influence on NO2 concentrations, according to a study by the Leibniz Institute for Tropospheric Research (TROPOS),...