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Tag: "ground" at biology news

Rare soft-shell turtle, nesting ground found in Cambodia

...mett said. The researchers also found a nesting ground for the species and brought back eggs that have since hatched. The hatchlings were released into the wild on May 8, together with another adult turtle and additional hatchlings captured by fishermen and handed over to the conservation team. Last o...

Spreading viruses as we breathe

...at rather than the droplet falling directly to the ground after leaving the mouth, the liquid component of the droplet dries in the air and the dry residue travels large distances. "When a droplet dries in the air the residue is carried in the air, and therefore there is a risk that people can inhale tha...

Researchers develop way to calculate speed of bacterial sex

...njugations, bacterial cell motion and transport in ground water, and the colonization of soil surfaces by bacterial cells. Using a previously established conceptual framework of conjugation processes in an isolated environment, researchers created a new mathematical model of bacterial transport and conju...

8 plants from South Africa may hold potential for treating high blood pressure

... amaranth Asystasia gangetica, an ornamental, ground cover known as Chinese violet. Also used in Nigeri...mmon name Physalis viscosa, known as starhair ground cherry Senna occidentalis, a very leafy tropical shrub whose seeds have been used in coffee; ca...

Alien plants attack using 'resource conservation' as weapon, researchers say

...ed photosynthesis and water-use rates. Later, they ground up and analyzed the leaves in a laboratory to determine nutrient content. By calculating the ratio of resource use to the rate of photosynthesis, the scientists were able to determine the resource-use efficiency for each plant. "Invasive plants we...

Protein enables discovery of quantum effect in photosynthesis

...seven chlorophylls, just like a taco shell around ground beef. The structure also is referred to as trimeric because of the three clusters. The protein, which comes from a photosynthetic bacterium that lives in extremely high temperatures, enabled the researches to discover that quantum mechanical effe...

How to look at dinosaur tracks

...e tracks, that is, the original prints left in the ground by the dinosaur. True tracks preserve many of the anatomical details of the foot, such as number of digits and impressions of claws. However, the true tracks may be filled with sediment or the original tracked surface may have eroded away. In the...

Lessons from the orangutans: Upright walking may have begun in the trees

... descended from the trees and began walking on the ground on all fours. Over time, this four-legged gait...ey remained bipedal and began eating food from the ground or smaller trees. The ancestors of chimps and gorillas, on the other hand, became more specialized f...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

... dentistry led to broader applications. The common ground between arthritis and dentistry: a common site of arthritic pain is the jaw joint. Study Details Proteins called receptors are built into the outer surfaces of human cells, enabling them react to the nutrients, toxins and hormones around them...

Definitive evidence found of a swimming dinosaur

...ries were later found to have been produced on dry ground or categorized as ghost traces, possible undertracks preserved in lower layers of sediment. "The trackway at La Virgen del Campo opens the door to several new areas of research," said Costeur. "New biomechanical modeling will increase our underst...

Scientists close in on missing carbon sink

...th measurements of carbon dioxide taken just above ground level. The models indicate that northern forests a...dels tended to move too much carbon dioxide toward ground level in the summer, when growing trees and other plants take in the gas, and not enough carbon diox...

Exploring the dark matter of the genome

...he chromosomes. The sequence and maps prepared the ground for the next stage in the process, the functional analysis of the fly's heterochromatin. "Historically it was called junk. We set out to see if there was any information in that junk," says Chris Smith, formerly in Berkeley Lab's Life Sciences Di...

Massive herds of animals found to still exist in Southern Sudan

...d Tourism, with support from USAID/USDA, undertook ground surveys in 2001 and 2002 of the wildlife populatio...odified Cessna 182 just hundreds of feet above the ground for 70,000 miles (112,650 km) to create an unprecedented record of human impact on the land. A surve...

Researchers examine carbon capture and storage to combat global warming

...umping millions of tons of carbon dioxide into the ground every year. Two of them represent the first efforts at storage in deep saline aquifers. A Stanford team also has begun researching storage of carbon dioxide in deep coal beds. In coal, chemical bonds form between the carbon dioxide and the coal, m...

Dirty snow may warm Arctic as much as greenhouse gases

...ow to melt continues to have an effect because the ground surface is darker and retains more heat,” Zender s...ch year, and if it contained fewer impurities, the ground would brighten and temperatures would cool. Carbon dioxide lives in the atmosphere for a century, so...

A new plant-bacterial symbiotic mechanism promising for crop applications

...s that are crucial for human diet (soybean, peas, ground nuts and so on…) and as animal feed (alfalfa, clover, sainfoin). In addition, cultivation of legumes living in symbiotic association with bacteria can contribute to vegetation regeneration schemes on soils depleted in nitrogen owing to overexploitat...

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