Where does pyrethrum come from?American Society of Agronomy (ASA), Crop Science Society of America (CSSA), Soil Science Society of America (SSSA)
Scientists are looking at ways to make more of this natural pesticide
Scientists are looking at ways to make more of this natural pesticide
Leaf-cutter ants tend fungal gardens that convert lipids in leaves into lipids the ants can use for energy, building cells, and communication between organisms. New research has found that different regions of the ants’ fungal gardens were enriched with different lipids. This helps scientists understand communications between organisms in different kingdoms of life.
During the winter months, renewable energy is in short supply throughout Europe. An international project is now considering an unconventional solution: Renewable hydrogen and carbon dioxide are pumped into the ground together, where naturally occurring microorganisms convert the two substances into methane, the main component of natural gas.
As well as bright colours and subtle scents, flowers possess many invisible ways of attracting their pollinators, and a new study shows that bumblebees may use the humidity of a flower to tell them about the presence of nectar, according to scientists at the Universities of Bristol and Exeter.
A new IIASA-led study set out to understand the full potential of behavior change and what drives such changes in people’s choices across the world using data from almost two billion Facebook profiles.
Researchers from the National University of Singapore and University of the Ryukyus have recently identified and described a new genus and species of xanthid crab found in Okinawa Island, Ryukyu Islands, Japan. Named Mabui calculus, it is the first among the 7,800 species of known crabs to have strongly asymmetrical male and female reproductive structures.
A research team led by the University of Arizona has reconstructed in unprecedented detail the history of a dust grain that formed during the birth of the solar system more than 4.5 billion years ago.
Rice University bioengineers collaborated on a six-year study that systematically analyzed how the surface architecture of breast implants influences the development of adverse effects, including an unusual type of lymphoma.
A study conducted in the Una Biological Reserve in the state of Bahia, Brazil, shows that in a habitat with high hunting pressure the risk of predation has such a significant impact on the behavior of the Yellow-breasted capuchin monkey Sapajus xanthosternos that it even avoids areas offering an abundant supply of plant biomass and invertebrates, its main sources of food.
Irvine, Calif., June 21, 2021 – A shift is happening in Southern California, and this time it has nothing to do with earthquakes. According to a new study by scientists at the University of California, Irvine, climate change is altering the number of plants populating the region’s deserts and mountains. Using data from the Landsat satellite mission and focusing on an area of nearly 5,000 square miles surrounding Anza-Borrego Desert State Park, the research team found that between 1984 and 2017, vegetation cover in desert ecosystems decreased overall by about 35 percent, with mountains seeing a 13 percent vegetation decline.
A new analysis of Venus’ surface shows evidence of tectonic motion in the form of crustal blocks that have jostled against each other like broken chunks of pack ice.
One vision that is currently driving material scientists is to combine organic molecules (and their diverse functionalities) with the technological possibilities offered by extremely sophisticated semiconductor electronics.
DHS S&T is convening U.S. government research organizations for the Virtual Whole-of-Government R&D Showcase, a unique four-part virtual content series that kicks off today and will run through August.
The history of pyroclastic surges is written in the landscapes they ravage. Volcanic dunes and other deposits hold debris from ancient eruptions, as do craters marking sites of ancient blasts. This study focuses on Ubehebe and El Elegante.
Team used Argonne’s GREET model to simulate changes, predict outcomes.
Associate professor Laura Wasylenki co-authored a new paper in Nature Communications that presents the results of nickel isotope analyses on Late Permian sedimentary rocks. The results demonstrate the power of nickel isotope analyses, which are relatively new, to solve long-standing problems in the geosciences.
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According to researchers at Johns Hopkins Medicine, the Massachusetts Institute of Technology (MIT) and Rice University in Houston, silicone breast implants with a smoother surface design have less risk of producing inflammation and other immune system reactions than those with more roughly textured coatings. Results of the experiments using mice, rabbits and samples of human breast tissue advance knowledge of how the body responds to such implants, providing new information to physicians and affirming the benefits of certain smoother surfaces, the researchers say.
The institute will be led by the University of Oklahoma and comprised of a number of partnering institutions including UAlbany, Howard University, Penn State and Texas Tech.
The RegenMed Development Organization (ReMDO), a non-profit foundation headquartered in Winston-Salem, NC, and dedicated to advancing the regenerative medicine field nationwide, and the Wake Forest Institute for Regenerative Medicine (WFIRM), the largest regenerative medicine institute in the world, announce the launch of the RegeneratOR Test Bed.
Engineers developed inexpensive methods to make “impossible materials” that interact in unusual ways with microwave energy. Thin film polymers inkjet printed with tiny component patterns collect or transmit energy with much greater selectivity, sensitivity, and power than conventional materials.
It's been nine years since the LinkedIn data breach, eight years since Adobe customers were victims of cyber attackers and four years since Equifax made headlines for the exposure of private information of millions of people.
Three virtual public events during the week of June 28 will mark Argonne’s 75th anniversary. Events will spotlight U.S. Department of Energy national user facilities; the next 75 years; the road to decarbonization; and a lighthearted look at the lab.
The 2021 Jansky Lectureship has been awarded to Professor Luis F. Rodriguez of the National University of Mexico, in recognition of his accomplishments as a scientist, an educator, a popularizer of astronomy and a mentor.
Woods Hole Oceanographic Institution (WHOI), a world leader in ocean exploration, discovery, and education, has named a new Chief Scientist for Deep Submergence (CSDS) for its National Deep Submergence Facility (NDSF). Dr. Anna Michel, an associate scientist in the Department of Applied Ocean Physics and Engineering, will be the first woman to serve in this high-profile role effective July 1, 2021.
UPTON, NY—The U.S. Department of Energy’s (DOE) Brookhaven National Laboratory has named Alex Harris as Director of the Lab’s Energy Sciences Department, effective May 1, 2021. In his new position, Harris will manage several divisions of the Laboratory, including the Center for Functional Nanomaterials, the Chemistry Division, and the Condensed Matter Physics and Materials Science Division.
Fourth annual conference offers free registration for the 6-week series.
Alcohol researchers have long known that excessive drinking can cause detrimental changes in cardiovascular functioning. Recent advances in technologies can facilitate data collection that identifies altered cardiovascular functioning even before a diagnosis of cardiovascular disease. These results and others will be shared at the 44th annual scientific meeting of the Research Society on Alcoholism (RSA), which will be held virtually this year from the 19th - 23rd of June 2021 due to the COVID-19 pandemic.
The Threespine stickleback fish is known to have evolved independently from its marine ancestors, a process called parallel evolution. A new study details the genomic changes that drive their rapid evolution, the findings from which may shed light on the process of natural selection in other species.
In Japan, thousands of homes and businesses and hundreds of lives have been lost to typhoons. But now, researchers have revealed that a new flood forecasting system could provide earlier flood warnings, giving people more time to prepare or evacuate, and potentially saving lives.
Just how do spiders walk straight up -- and even upside-down across -- so many different types of surfaces? Answering this question could open up new opportunities for creating powerful, yet reversible, bioinspired adhesives.
Climate warming plays a larger role than plant genes in influencing the number and identity of fungal species on oak leaves, especially in autumn.
The loss of a loved one can be a defining moment, even in the animal world. In chimpanzees, for example, individuals whose mothers die when they are young are smaller than their counterparts, reproduce less and are also more likely to die at a young age.
A new paper in Scientific Reports led by researchers at William & Mary's Virginia Institute of Marine Science challenges increased salinity and seawater temperatures as the established explanation for a decades-long increase in the prevalence and deadliness of a major oyster disease in the coastal waters of the mid-Atlantic.
Geologic activity on Earth appears to follow a 27.5-million-year cycle, giving the planet a "pulse," according to a new study published in the journal Geoscience Frontiers.
Properties of materials are often defined by imperfections in their atomic structure, especially when the material itself is just one atom thick, such as graphene. Researchers at the University of Vienna have now developed a method for controlled creation of such imperfections into graphene at length scales approaching the macroscopic world. These results, confirmed by atomically resolved microscope images and published in the journal Nano Letters, serve as an essential starting point both for tailoring graphene for applications and for the development of new materials.
Fuel cells, part of a promising path toward zero-emission vehicles, are making progress at overcoming some specific challenges on the road to powering heavy-duty vehicles.
New UMD study suggests that everywhere tyrannosaurs rose to dominance, their juveniles took over the ecological role of medium-sized carnivores
The U.S. Department of Energy has selected Iowa State's Srimoyee Sen for an early career award that will help her study nuclear physics and quantum phenomena. The research could lead to the discovery of new materials that could one day contribute to speedy quantum computing or other applications.
Climate change will shape the future of coastal communities, with flood walls, elevated structures and possibly floating cities used to combat sea level rise. New research has found that managed retreat must be part of the solution now, and not a last resort.
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In research published today in Nature Nanotechnology, a team of materials scientists and engineers, led by Jian Shi, an associate professor of materials science and engineering at Rensselaer Polytechnic Institute, used a strain gradient in order to break inversion symmetry, creating a novel optoelectronic phenomenon in the promising material molybdenum disulfide (MoS2) — for the first time.
Chemistry grad student Steven Skaggs was recently selected for funding by the Future Investigators in NASA Earth and Space Science and Technology (FINESST) program.
Four undergraduates from New York state who are majoring in animal science each received $20,000 scholarships this past year through the Chobani Scholars Program, to help them achieve their dairy career ambitions across four years of study.