Research explores the impact of invasive grasses on South Texas landscapes
203,305 articles from PhysOrg
Battle between Trump and states over car pollution heads to court
Scientists writing for the journal Invasive Plant Science and Management say several exotic grass species once grown in South Texas for livestock forage and erosion control have expanded from the areas where they were planted and have become invasive. They now are reducing the region's biodiversity and the habitats available for wildlife.
Contaminated soils determine root characteristics
California and nearly two dozen other states on Wednesday filed suit against the Trump administration, arguing that its decision to weaken fuel efficiency standards for cars and trucks puts the public's health at risk and is based on flawed science.
Yes, your dog wants to rescue you
Tree roots have multiple essential functions for their growth and survival. Acquiring nutrients and water from the soil, storing food and anchoring the plant in a substratum are what keep plants alive. In addition, root traits adapt themselves to physical limitation: they grow longer and thinner in dry soils in order to seek faraway water and they stay shorter in compact soils. Thanks to these...
Solution to century-old math problem could predict transmission of infectious diseases
Imagine you're a dog. Your owner is trapped in a box and is crying out for help. Are you aware of his despair? If so, can you set him free? And what's more, do you really want to?
A new view on how tissues flow in the embryo
A Bristol academic has achieved a milestone in statistical/mathematical physics by solving a 100-year-old physics problem—the discrete diffusion equation in finite space.
Next frontier in bacterial engineering
As embryos develop, tissues flow and reorganize dramatically on timescales as brief as minutes. This reorganization includes epithelial tissues that cover outer surfaces and inner linings of organs and blood vessels. As the embryo develops, these tissues often narrow along one axis and extend along a perpendicular axis through cellular movement caused by external or internal forces acting...
Smart windows that self-illuminate on rainy days
From bacteria-made insulin that obviates the use of animal pancreases to a better understanding of infectious diseases and improved treatments, genetic engineering of bacteria has redefined modern medicine. Yet, serious limitations remain that hamper| progress in numerous other areas.
Solar Orbiter to pass through the tails of Comet ATLAS
Smart windows that automatically change colors depending on the intensity of sunlight are gaining attention as they can reduce energy bills by blocking the sun's visible rays during summer. But what about windows that change colors depending on the humidity outside during the monsoon season or on hot days of summer?
Video: Europe's Spaceport, back to business
ESA's Solar Orbiter will cross through the tails of Comet ATLAS during the next few days. Although the recently launched spacecraft was not due to be taking science data at this time, mission experts have worked to ensure that the four most relevant instruments will be switched on during the unique encounter.
New study reveals long-term impact of disaster-related school closures
Workers are returning to Europe's Spaceport in Kourou, French Guiana to resume preparations for Vega and Ariane 5 launches. Construction of the new Ariane 6 launch pad has also restarted.
A non-destructive method of analysing molecules in cells
Interrupting schooling has deep and long-lasting effects on children, shows a study from Oxford, which is based on research, into the 2005 Pakistan earthquake, that has relevance for other disasters, including the COVID-19 pandemic.
Researchers find mathematical structure in biological complexity
When investigating how tumors grow, or how pharmaceuticals affect different types of cells, researchers have to understand how molecules within a cell react—and interact. This is possible with modern laser microscopy. Until now, however, molecules in cell specimens had to be labelled with fluorescent substances in order to make them visible, and this can distort the very behavior of the...
How we can increase the effectiveness of global environment protection
What is and is not possible for natural evolution may be explained using models and calculations from theoretical physics, say researchers in Japan.
When dams cause more problems than they solve, removing them can pay off for people and nature
Researchers from the Institute of Environmental Sciences (CML) identified six top priorities where environmental interventions can make the most difference. By doing so, they hope to help researchers and policymakers make the most out of the limited, available resources to protect people and the planet.
Researchers create active material out of microscopic spinning particles
Across the United States, dams generate hydroelectric power, store water for drinking and irrigation, control flooding and create recreational opportunities such as slack-water boating and waterskiing.
Image: Hubble grabs a stellar latte
At the atomic level, a glass of water and a spoonful of crystalline salt couldn't look more different. Water atoms move around freely and randomly, while salt crystals are locked in place in a lattice. But some new materials, recently investigated by researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory, show an intriguing propensity to sometimes behave like water and...
Climate scientists create model for global forest growth through 2060
Far away in the Ursa Major constellation is a swirling galaxy that would not look out of place on a coffee made by a starry-eyed barista. NGC 3895 is a barred spiral galaxy that was first spotted by William Herschel in 1790 and was later observed by the NASA/ESA Hubble Space Telescope.
MAXI J1820+070: Black hole outburst caught on video
When it comes to the fight against global warming, our forests offer a valuable service. Trees act as carbon sinks, capturing CO2—the main greenhouse gas heating up the Earth's climate—from the air and storing it until they die.
A study analyzes the growth and development of the diploic veins in modern humans
Astronomers have caught a black hole hurling hot material into space at close to the speed of light. This flare-up was captured in a new movie from NASA's Chandra X-ray Observatory.
Astronomers predict bombardment from asteroids and comets in other planetary system
A study coordinated by Emiliano Bruner, a paleoneurologist at the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), on the growth of the diploic veins throughout human development (between one year of age and adulthood) shows that, while these vessels develop constantly, it is only in the adult phase that a substantial increase is detected.
Experiments with mini-ecosystems show that exotic plants accelerate carbon loss from soils
The planetary system around star HR8799 is remarkably similar to our solar system. It has four gas giants in between two asteroid belts. A research team led by RuG and SRON used this similarity to model the delivery of materials by asteroids, comets and other minor bodies within the system. Their simulation shows that the four gas planets receive material delivered by minor bodies, just as in our...
Wildlife managers use pup fostering to boost wolf genetics
A team of researchers affiliated with multiple institutions in New Zealand has found evidence that shows exotic plant introductions can accelerate carbon loss from soils. In their paper published in the journal Science, the group describes how setting up multiple mini-ecosystems to learn more about the impact of invasive species on native ecosystems, and what they learned. Carlos Urcelay and Amy...
New research reveals Cannabis and Frankincense at the Judahite Shrine of Biblical Arad
A record number of captive-born wolf pups has been placed into the wild as part of an effort by federal and state wildlife managers to boost the genetic diversity among Mexican gray wolves in the Southwestern United States.
Researchers track how bacteria purge toxic metals
Analysis of the material on two Iron Age altars discovered at the entrance to the "holy of holies" of a shrine at Tel Arad in the Beer-sheba Valley, Israel, were found to contain Cannabis and Frankincense, according to new article in the journal, Tel Aviv.
Bacteria have a cunning ability to survive in unfriendly environments.