A UVM study reveals that reed canarygrass's invasive power comes from its history of multiple introductions and interbreeding with European strains, allowing it to adapt quickly to new conditions. This phenomenon has significant implications for the potential invasiveness of other horticultural and agricultural plants.
A team of scientists has discovered a strong connection between carbon dioxide increase and warming during the Paleozoic Era. The research found that as Gondwana deglaciated and atmospheric CO2 rose, tropical regions became arid and vegetation changed dramatically.
New images from NASA's Mars Reconnaissance Orbiter show linear fractures and 'halos' of light-toned bedrock, suggesting past fluid flow through underlying bedrock. The findings provide a promising site to search for evidence of habitable niches in the Martian past.
Archaeologists have uncovered stone 'hammers' dating back 4,300 years in the Taï rainforest, used by chimpanzees to crack nuts. The discovery confirms that some of humanity's behavioral hallmarks were inherited from a common ancestor with great apes.
Researchers in Morocco found that combining cypress with lavender or mycorrhizal fungi increases survival rates and growth of young saplings. This approach also reduces soil erosion and improves tree development.
Researchers analyzed interaction between individual raindrops and soil particles, dispelling a 50-year-old misconception about how rain-splash transport works. The study provides a theoretical model for the transfer of momentum carried by raindrops to sand grains.
Researchers used satellite imagery meshed with video-game technology to trace the movements of ancient people in present-day Costa Rica, who reused single-file paths for over 1,000 years. The project revealed that villagers viewed footpaths as 'living entities' and reoccupied them after devastating eruptions.
The CATALIST Project will help maintain biodiversity, improve environmental management, and develop markets for agricultural inputs and crops in the Great Lakes region. Local people will be employed in labor-intensive public works to plant trees and build terraces and roads.
A study by Rice University and UCL found that US consumers are willing to use specific nano-containing products when the potential benefits are high. The public perceives nanotechnology as less risky than everyday technologies.
Researchers found that embryonic cells from a dog's notochord can regenerate disc cartilage, providing new therapeutic options for degenerative disc disease. The study suggests that CTGF-secreting notochord cells protect non-chondrodystrophic dogs against the condition.
Research suggests that common antacids like lansoprazole can interfere with bacteria that cause plaque buildup and gingivitis. By disabling these bacteria, the compounds may prevent inflammation and damage to gums. If confirmed in future studies, these compounds could be widely available in oral care products.
A new study by Oregon State University researchers found that cougar predation has a significant impact on the environment, leading to severe ecological damage and loss of biodiversity in Zion National Park. The 'trophic cascade' effect, where the decline of a major predator leads to changes in herbivore populations and behavior, is ev...
Researchers found PLC-gamma-2 crucial for normal osteoclast development and function in mice with rheumatoid arthritis (RA). The protein also regulates B cell differentiation, suggesting a potential therapeutic target for controlling joint destruction and bone erosion.
Two studies published in the Journal of Clinical Investigation reveal key roles for PLC-gamma-2 and NF-kappa-B in immune responses. PLC-gamma-2 regulates osteoclast development and B cell differentiation, while NF-kappa-B controls endothelial cell function in models of sepsis and cancer.
A new study reveals that most Alaskans, regardless of political affiliation, share a common concern about the impacts of global warming. Key findings include major impacts on sea ice, permafrost, coastal erosion, and forest fires, as well as significant threats to local communities, families, and the environment.
Mark Brandon's award-winning research explores the dynamics of erosion in tectonically active mountain ranges. His work has shed light on the interplay between accretion, erosion, and wedge growth in shaping the Earth's surface.
Scientists found that massive erosion of the Alps was triggered by a sudden drop in Mediterranean Sea levels and prolonged warmer climate. The event, known as the Messinian salinity crisis, carved deep valleys and left behind lakes, reducing the mountain range's size over millions of years.
Recruitment incentives have grown due to competition among research sponsors, offering substantial finder's fees. This raises concerns about physician judgment, patient safety, and public trust in clinical research. The issues cannot be resolved by sanctioning individuals, but rather require broader institutional and regulatory reform.
A new study by Tulane University and Utrecht University suggests that compaction of the shallowest and most recent delta sediments is the main cause of subsidence in coastal Louisiana. The research challenges the notion that tectonic subsidence bears much of the blame for Louisiana's coastal geologic problems.
Scientists investigate how volcanic ash affects ecosystems, find evidence of ancient desert landscapes and discover fossilized bone marrow in 10 million-year-old amphibians. Researchers also analyze the erosion rates of the Alps and explore the origins of zircon crystals.
The Australia-US Free Trade Agreement could lead to a decline in Australia's blood safety standards if plasma fractionation is opened up to overseas tender. The move could also affect products in other countries, including New Zealand, which may be forced into 'piggy-backing' with new arrangements.
Scientists at the University of Illinois have developed a theoretical model explaining how hot spring water deposits calcium-carbonate minerals, forming travertine and shaping landscapes. The model reveals that rocks grow at a rate of 1 millimeter per day, contradicting common assumptions about erosion.
Research symposium articles investigate how Latino immigration shapes American culture and national identity, challenging the idea of a homogeneous 'American' experience. Key findings highlight the diversity within Latino populations and the importance of considering institutional discrimination in assimilation processes.
Rituximab plus methotrexate treatment significantly inhibits joint structural damage, reducing bone erosions and joint space narrowing in patients. The study's findings offer new hope for those who do not respond to current treatments.
The Massachusetts Institute of Technology has released a free educational pamphlet warning of the dangers of dumping seafood into the wild. Invasive species can travel through ship ballast water, aquaculture facilities, and consumer releases, causing economic and environmental damage.
The Idaho Bureau of Land Management and weed control groups use new software to analyze NASA satellite imagery and target areas for cheatgrass treatment. The technology helps land managers be smarter in using their resources, improving the effectiveness of weed control efforts.
Studies in Sweden, China, and the US find strong links between smoking and osteoporosis, with smoking hastening bone erosion and increasing fracture risk. Second-hand smoke also significantly increases risk for osteoporosis and fractures in both men and women.
Research papers in Geophysical Research Letters highlight climate change impacts on Mars, with data from orbiting spacecraft and rovers revealing a hemispheric dichotomy. In the Arctic, sea ice reduction is linked to inflows from the Pacific Ocean, while the Indian Ocean experiences decadal variability in its circulation. Scientists st...
Researchers at Rutgers University duplicated Martian razorback shapes using statically charged sand grains on acrylic. Meanwhile, DNA molecules and carbon nanotubes can convert rotational motion to linear translation, potentially solving a crucial problem in micromachine parts.
Research papers highlight the influence of Himalayan topography on monsoon rainfall and reveal self-gravity wakes in Saturn's A ring. Additionally, studies show complex ion chemistry on Titan's nightside and suggest ammonia ions in Titan's ionosphere.
A new study found that branching coral Montipora capitata sharpens its plankton intake when bleached, increasing its chances of recovery. The findings indicate that any coral, regardless of shape or location, can recover if it can increase feeding.
A massive marsh planting project is set to begin in coastal Alabama and Mississippi, aiming to restore salt marshes and their ecosystem services. The project, led by Dr. Cebrian, will focus on restoring black needlerush and other plant species, and will involve the coordinated efforts of researchers, resource managers, and volunteers.
A University of Toronto study reveals that rainfall-induced erosion significantly impacts tectonic plate behavior, extending to the mantle thermal engine. The research suggests subtle surface weathering could shift plates over millions of years.
A study by Markus Harting found that glass spherules from Mexico to Haiti match the chemical composition of rocks melted at Chicxulub. The reworked spherules are misplaced in sediments close to the K-T boundary, casting doubt on previous timelines.
Researchers at Delft University of Technology have observed flowing nano ripples using an electron microscope, challenging existing theories on their formation. The observations reveal that the waves flow in the same direction as the incoming ions, contradicting previous assumptions about the movement of nano ripples.
Computers are transforming mathematical proof, with complex problems requiring hundreds of pages of data. Mathematicians face challenges in validating and verifying these proofs, raising concerns about the erosion of traditional publishing practices.
The new ACM report outlines best practices for managing voter registration databases to prevent hacking attacks, massive failures, severe privacy violations, and erosion of confidence. The guidelines aim to ensure the reliability and usability of voter databases by adopting transparent policies, setting clear accountabilities, establis...
A Dartmouth research study confirmed earlier findings that toxic metals like arsenic and lead remain in the top 10 inches of soil after pesticide use. The new study reveals these metals are now part of the fine silt and organic matter, increasing erosion risk to nearby waters.
A recent study by Esaïe Gandonou found that reducing distance to the market has slight positive effects on grain yields and soil conservation. This is largely due to the increased use of artificial fertilizers, which require soil conservation measures.
Scientists have re-evaluated mountain building processes after discovering ancient mountain elevation data reveals a rapid uplift of the Andes between 10-7 million years ago. This suggests that 'deblobbing' - the detachment of dense mantle roots beneath the Earth's crust - may be responsible for mountain range formation.
Researchers from UC Berkeley found no signature of life in Earth's topography, contrary to previous assumptions. Instead, they suggest that life's influence is more subtle, shaping landforms like rounded hills and meandering rivers, but not creating unique features.
A recent study by UC Berkeley researchers suggests that ethanol can be a good substitute for gasoline, offering substantial energy savings and reduced greenhouse gas emissions. The study analyzes six high-profile studies of ethanol and finds that producing ethanol from corn uses significantly less petroleum than producing gasoline.
Researchers reconstructed the Indus River's discharge over 30 million years and found a significant change in sediment source five million years ago. The study suggests that rivers were diverted from their original southeasterly flow by uplifted mountain ranges in modern-day Pakistan.
A study by Saskia van Vuren reveals that changes in the riverbed elevation can cause high-water problems, flooding, droughts, erosion, and affect discharge distribution. The researcher argues that future high-water level predictions must consider morphological dynamics.
Using a new geochemical tool, researchers documented how fast glaciers eroded the Coast Mountains of British Columbia, finding rates six times faster than rivers and landslides. Glaciers scraped at least 2 kilometers of rock from mountains around 1.8 million years ago, shaping the landscape.
The Huygens probe has revealed that Titan's surface is a barren, 'river' landscape where water ice congeals like stone. Methane plays a similar role to water on Earth, existing in solid, liquid, and gas states. The dense atmosphere has conditions similar to those early in our solar system.
Agricultural activity dominates over a third of the Earth's landscape, posing environmental challenges such as deforestation and water pollution. New maps track changing agricultural land use patterns worldwide, highlighting emerging trends like soybean production in Argentina and Brazil driven by China's demand.
Scientists uncover evidence of massive soil erosion as primary cause of end-Permian extinction, which wiped out over two-thirds of reptile and amphibian families. The research reveals a unique set of molecules found in rocks from Italy provided crucial insights into the event.
Data from Mars Express confirms the presence of hydrated minerals, implying long-term liquid water on Mars during the Noachian era. Phyllosilicates and sulphates were detected in various regions, suggesting two distinct climatic episodes: a moist environment for phyllosilicates and an acid environment for sulphates.
A Senate committee hearing explored the cause of levee failures in New Orleans following Hurricane Katrina. The investigation found that a soft, spongy layer of swamp peat underneath some levee sections may have contributed to breaches, and further analysis is needed to determine its extent.
A phase III study shows Actemra significantly reduces radiographic joint destruction and disease activity scores in patients with early aggressive rheumatoid arthritis. The treatment was generally well-tolerated, with a low incidence of adverse events.
The TEMPO study demonstrated that over three-quarters of patients treated with Enbrel plus methotrexate experienced no progression of joint damage. Additionally, patients treated with this combination therapy showed a significant improvement in physical function compared to those receiving either treatment alone.
Researchers use microfossils to analyze coastal sediment cores, revealing evidence of less frequent major storms in recent centuries. However, results may be affected by other environmental factors, such as rising sea levels.
Research finds that heavy rainfall and flooding can lead to more dust being released into the atmosphere, especially in regions like the Tigris-Euphrates Basin and North Africa. In contrast, areas with more vegetation and lower wind speeds tend to experience a decrease in dust emissions.
A new study reveals that tree diversity in tropical forests plays a crucial role in determining their ability to store carbon and provide other essential ecosystem services. The researchers simulated different extinction scenarios and found that the types of trees remaining had a significant impact on carbon storage capacity.
A recent study using high-resolution satellite data found that selective logging in the Brazilian Amazon has been underestimated by half, with an annual extent of around 4,685 to 7,973 square miles. This has significant ecological implications for the region and beyond, including increased carbon emissions and biodiversity loss.
Researchers found that no-till farming can store up to 868 million tons of carbon in soil, which could help meet the US's goal of reducing carbon-dioxide emissions by one-fifth. Climate change affects soil carbon sequestration varying by region, with some areas experiencing increased storage and others reduced.
Researchers found that coastal bluffs and cliffs are a significant source of sand in Southern California beaches, accounting for half of the sand in the Oceanside Littoral Cell. The study uses laser-scanning technology to quantify bluff erosion with high accuracy, challenging conventional assumptions about beach sand supply.
The study revealed significant changes to the island, including beach erosion and overwash deposition. The data will be used to develop computer models predicting coastal impacts from severe storms.
A new protocol uses path analysis to track the impact of land use on streams, identifying key entities and processes that influence aquatic health. By analyzing 10 watersheds, researchers have developed a valuable approach to understanding the 'land-cover cascade' and its effects on stream ecosystems.