Advancing agriculture threatens the livelihoods of forest-dependent people
230,036 articles from PhysOrg
What causes disease outbreaks?
Forest-dependent people living across the Gran Chaco have been put on the map for the first time. As agribusiness expands into the dry forest on which they rely, the impact of that expansion on them has been difficult to document because their homesteads are dotted over 1 million km2. But now an international team of researchers, including a researcher from McGill University, has used high...
Fish consumption still safe despite initial fears over mercury levels
Since 1974, contaminated water has been the most common driver of large-scale zoonotic infectious disease outbreaks, according to new research from the Center for the Ecology of Infectious Diseases (CEID) at the University of Georgia. The next two greatest drivers are unusual weather patterns and changes in the abundance of disease vectors such as mosquitos and ticks.
Rapid echolocation helps toothed whales capture speedy prey
The benefits of consuming traditional foods tend to outweigh the risks of possible mercury contamination, according to a recent study.
Cells move by controlling the stiffness of their neighbours
Whales use a combination of rapid echolocation adjustments and nimble brain responses to zero in on fast-moving prey, suggests a study published today in eLife.
Using overpasses as shelter from tornado?
Cells can control their ability to move through the body by using a protein called fascin to control the stiffness of neighboring cells, suggests a study published today in eLife.
To better understand speech, focus on who is talking
Meteorologists and emergency workers continue to contest the popular thinking that waiting out a tornado under an overpass is safe. According to the National Weather Service, doing so could actually increase the risk of death, in part because the wind from a tornado is thought to accelerate as it flows under the overpass, in what's known as the wind tunnel effect.
Modeling improvements promise increased accuracy for epidemic forecasting
Seeing a person's face as we are talking to them greatly improves our ability to understand their speech. While previous studies indicate that the timing of words-to-mouth movements across the senses is critical to this audio-visual speech benefit, whether it also depends on spatial alignment between faces and voices has been largely unstudied.
Parasite that replaces a fish's tongue caught at Texas state park
Accurate forecasting of epidemic scenarios is critical to implementing effective public health intervention policies. While much progress has been made in predicting the general magnitude and timing of epidemics, there's still room for improvement in forecasting peak times, as unfortunately evidenced with H1N1 and COVID-19, when peak times occurred later than predicted.
Dutch order poultry indoors after avian flu outbreak
An unknown person working at Galveston Island Sate Park, Texas Parks and Wildlife, has posted a picture of a unique fish that was caught at the park on Facebook—it has no natural tongue. Instead, it has a tongue made up of a group of parasites known as a tongue-eating louse. In the picture, the fish is held up to the camera with its mouth wide open showing the strange foreign 'tongue' inside.
'Atmospheric river' drenches drought-stricken California
Dutch health authorities on Tuesday ordered all poultry to be kept indoors to curb an outbreak of highly contagious bird flu.
Latest climate plans worlds away from 1.5C target: UN
A powerful atmospheric river storm that swept through California set rainfall records and helped douse wildfires. But it remained to be seen how much of a dent it made in the state's drought.
SpaceX needs to tame toilet trouble before weekend launch
Countries' latest climate plans will deliver just a tiny percentage of the emissions cuts needed to limit global heating to 1.5C, the United Nations said on Tuesday in a damning assessment ahead of the COP26 climate summit.
Florida manatee deaths soar as polluted water kills seagrass
SpaceX is taming some toilet troubles in its capsules before it launches four more astronauts.
Research reveals powerful lure of gambling adverts on social media to children
Florida fishing guide and environmental activist Paul Fafeita says a highlight for his charter customers is spotting the manatees that forage for seagrass in shallow waters. It's not so thrilling when they come across the emaciated carcass of a manatee that starved to death.
Scientists produce tadpoles better adapted to climate change
A new report has exposed how children and young people are vulnerable to the growing popularity of gambling adverts on social media, prompting calls from leading experts for much tighter regulations.
Scientists fear global 'cascade' of climate impacts by 2030
In a world-first laboratory trial reported in Communications Biology, a research team at The University of Western Australia have mixed populations to produce tadpoles that would be more tolerant of climate change.
Breakthrough Listen project releases analysis of previously detected signal
Climate hazards such as extreme heat, drought and storms could trigger "cascading impacts" that may be felt around the world within the next decade, warns a study released ahead of the UN climate summit, COP26.
Pathfinding experiment to study origins of solar energetic particles
An intriguing candidate signal picked up last year by the Breakthrough Listen project has been subjected to intensive analysis that suggests it is unlikely to originate from the Proxima Centauri system. Instead, it appears to be an artifact of Earth-based interference from human technologies, the Breakthrough Initiatives announced today. Two research papers, published in Nature Astronomy, discuss...
A 'monster' star-forming region spied by NASA's Spitzer
A joint NASA-U.S. Naval Research Laboratory experiment dedicated to studying the origins of solar energetic particles—the Sun's most dangerous form of radiation—is ready for launch.
A mysterious signal looked like a sign of alien technology—but it turned out to be radio interference
Do you see a monster in this picture? Do the bright spots near the top of the image look like the piercing eyes and elongated snout of Godzilla?
Inter-annual variation affects microbial communities more than detritus input manipulation
In December last year, the media reported an intriguing signal we at the Breakthrough Listen project found in our radio telescope data. Dubbed BLC1, the signal didn't appear to be the result of any recognizable astrophysical activity or any familiar Earth-based interference.
Multi-scale relationships between urban green infrastructure landscape patterns and atmospheric PM2.5 concentrations
Microbes regulate soil carbon and nutrients cycles in terrestrial ecosystems through impacting the decomposition and incorporation of organic matter in soils. While, soil microbial communities are profoundly affected by changes in biotic and abiotic factors as a consequence of global change. How the soil microbial community responds to the inter—annual variations remains unclear.
Report: Affordable policy that could stop fossil fuels causing global warming
Urban green infrastructure (UGI) refers to the natural and semi-natural open spaces with ecosystem functions in and around the cities. Improving urban green infrastructure is considered as an important technical means for the effective control of atmospheric PM2.5 (particles aerodynamic diameter of lower than or equal to 2.5 μm) pollution.
The young plant's pantry does more than just feed it
Imagine a single policy, imposed on one industry, which would, if enforced consistently, stop fossil fuels causing global warming within a generation. The Carbon Takeback Obligation could do just that. It requires fossil fuel extractors and importers to dispose safely and permanently of a rising fraction of the CO2 they generate, with that fraction rising to 100% by the year of net-zero....
The endosperm, the tissue surrounding the plant embryo in the seed, has long been perceived as a nourishing tissue that is abandoned once the transition to the seedling is complete. A Swiss team, led by scientists from the University of Geneva (UNIGE), has now shown that the endosperm also plays a key role in the proper development of the seedling after germination. It acts notably on the...