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Tag: "ground" at biology news

India's smoking gun: Dino-killing eruptions

...oot (2-km) thick lava flows that poured out of the ground 65 million years ago could shift the blame for killing the dinos. The Deccan Traps of India are one of Earth's largest lava flows ever, with the potential of having wreaked havoc with the climate of the Earth - if they erupted and released climate-c...

Agricultural antibiotic use contributes to 'super-bugs' in humans

...d in the air and soil around farms, in surface and ground water, in wild animal populations, and on retail meat and poultry. These resistant bacteria are carried into the kitchen on contaminated meat and poultry where other foods are cross-contaminated because of common, unsafe handling practices. Following...

Plants discriminate between self and non self

...n a pod may not be so friendly when planted in the ground and even two parts of the same plant, once separated may treat the former conjoined twin as an alien "enemy," according to a Penn State researcher. "We were looking at how plants determine who is a competitor when competing with other roots for limi...

Prozac for future Plants on Mars

...n a pod may not be so friendly when planted in the ground and even two parts of the same plant, once separated may treat the former conjoined twin as an alien "enemy," according to a Penn State researcher. "We were looking at how plants determine who is a competitor when competing with other roots for limi...

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...h interval timing occupies the middle neurological ground between two other clocks -- the circadian clock that operates over the 24-hour light-dark cycle, and the millisecond clock that is crucial for such functions as motor control and speech generation and recognition. Meck is a professor and Buhusi is an...

Research team receives $7.5 million to study cassava

...ditions. Fully grown cassava roots can stay in the ground for up to two years and needs relatively little water to survive. The roots are a key source of carbohydrates for subsistence farmers in Africa . The researchers will work on developing new types of cassava plants that have increased levels of zinc,...

On a wing and a prayer - Alaska researchers seek clues to bird flu

...cientists say that could provide an unusual mixing ground for the evolution of new strains of bird flu - strains that could spread to lower latitudes and possibly jump to other species, including humans. University of Alaska (UAF) scientists and state and federal biologists from across Alaska have joined f...

Study shows big game hunters, not climate change, killed off sloths

...are the likely culprits in the extinction of giant ground sloths and other North American great mammals such...is colleagues found the last record of West Indian ground sloths coincided with the arrival of humans 4,400 years ago. The results are published in a Proceedi...

Plant wounds trigger bacteria

...s or stems of dicot plants, tree or vines near the ground where freezing occurs during winter and a wound forms in spring. Such fruit trees as cherries and peaches, raspberries and high-quality vine grapes like chardonnay and cabernet sauvignon tend to be susceptible to the disease, which can stunt or kill ...

Once-dreaded leprosy 'replaced' by tuberculosis, say researchers

...been visited by lepers, from a 10th century burial ground in Hungary, and from a Viking-age cemetery in nort...or sanitary conditions provided a fertile breeding ground for the spread of the killer disease. Today, tuberculosis, though curable, is still a major, long-t...

Wright bros. upstaged! Dinos invented biplanes

...light began in trees (trees-down theory) or on the ground (ground-up theory). These fossils show various transitional stages?from wingless, tree-dwelling theropod dinosaurs to fully winged, active flyers, Chatterjee said. The central theme of the trees-down theory is that gravity was the source of energy:...

Pillows - a hot bed of fungal spores

...lars, household plant pots, compost, computers and ground pepper and spices. Invasive Aspergillosis occurs mainly in the lungs and sinuses, although it can spread to other organs such as the brain, and is becoming increasingly common across other patient groups. It is very difficult to treat, and as many ...

Researchers: Treated wood poses long-term threat

...s news section. But because the wood can be in the ground for several years "the impacts can be significant, especially given the high concentrations of arsenic in the wood itself." The researchers concluded that by 2000, Florida had imported 28,000 metric tons of arsenic, 4,600 of which have already leach...

Storing carbon to combat global warming may cause other environmental problems, study suggests

...ents with drinking water. But that is underlain by ground water that is brackish. "After trees use that fresh water up, there's an upwelling of saline water," Jackson said. "These mechanisms have been linked to more than five-fold increases in groundwater salinization in southern Australia and in the Caspi...

Researchers know what you were about to say; fMRI used to detect memory storage and retrieval

...ral networks and robots. The study also broke new ground in how fMRI could be used to study how brain activity changes from second to second. Polyn and his Princeton colleagues gave participants 90 things to remember ?divided among celebrity faces, common objects and famous locations ?using the fMRI to d...

Max Planck researchers make a breakthrough in plant stem cell research

...portance for all of stem cell research. All above ground parts of a plant - leaves, stem, flowers, and seeds - ultimately are derived from cells of a small tissue at the tip of the shoot. Biologists call this tissue the "apical meristem", and it contains totipotent stem cells that are active throughout the...

Envisat radar surveillance protects endangered prehistoric fish

... become available daily, downlinked to a dedicated ground station located on Kerguelen Island. "Kergulen is a remote and inaccessible place, but it has the advantage of being at the centre of the area we want to survey," explained Philippe Schwab, Technical director of CLS. "New images are received in rea...

Bugs expose underground carbon traffic system 10 times more important than fossil fuel burning

... and provides recycled carbon for supporting below ground biodiversity. It will also open up a new understanding of the food-webs and nutrient flow in soil which is fundamental to sustainable agriculture. ...

Wild Gorillas Handy with a Stick

...ith both hands. She then jammed the trunk into the ground and grasped it with her left hand while manipulati...ight hand. Efi then placed the trunk on the swampy ground in front of her, and, walking upright, used it as a bridge to cross the muck. That tool use was see...

Cord blood cells may widen treatment window for stroke

..., the researchers suggest, many nerve cells within ground zero of the attack, like those in mild to moderately damaged outlying areas, may succumb over several days through a slower, more orderly process known as apoptosis, or programmed cell death. "This delayed death would permit more time to deliver ne...

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