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Tag: "changing" at biology news

Beekeepers work hard for the honey, despite changing tupelo forest

...allins and Watson will explore the degree to which changing river hydrology, exotic pests, land development and other factors are affecting tupelo honey production, an important regional industry that contributes about $2.4 million a year to Florida's economy. The researchers' findings will allow beekeepers...

Global warming may warrant new approaches to ecosystem restoration

...ts of climate change, but the implications of this changing environment must be considered. Using past ecosystem conditions as targets and references may be ineffective under new conditions. In addition, there may be less support in the future for longer-term, traditional restoration projects. The authors...

Acidity in the brain could hold the key to stroke treatment

... the brain. Acidity causes this rate to increase, changing the NMR signal of water. ...

Scientists solve sour taste proteins

...increasing their concentration within the cell and changing the cells from red to green, Matsunami said. The channels remained closed when confronted with salt, sweeteners, or bitter solutions. The increased concentration of calcium in the cell may then trigger the signal that the brain eventually perceives a...

Snakes' virtual glasses, leopard spots and all-optical transistors

...odel easily accounts for the big cats' complex and changing patterns, and are hopeful that experimentalists will soon track morphogen chemicals down. An All-Optical Transistor Breakthrough G. A. Wurtz, R. Pollard, and A.V. Zayats Physical Review Letters (forthcoming article, available to journalists on...

Loosen up, DNA: Leukemia gene changes genetic packaging

...the genome, somehow turning on the red-eye gene by changing the gene's packaging. Genes that were previously turned off or silenced were turned on once JAK/STAT changed the genetic packaging. The team's results suggest that the pathway's ability to cause cancer is largely due to this ability; cancer-causing g...

A single sugar found responsible for an antibody's ability to treat inflammation

...a state that is actively anti-inflammatory by just changing a sugar." This switch occurs during a normal immune response to a foreign substance, shifting the IgG antibodies from an anti-inflammatory state to one that is pro-inflammatory and able to efficiently dispose of the foreign challenge. To test the ...

All the eggs in one basket

...the turtles eating fewer of the toxic sponges. The changing ratio of sponge species will ultimately affect the landscape of coral reefs. The scientists say more protection is needed for the sea turtle nesting sites. "Protecting more nesting beaches is not a politically or socially simple endeavor, but ...

Corals switch skeleton material as seawater changes

..., Ries said, especially at a time when seawater is changing in response to global warming and the buildup of c...ogic history between a low of 1.0 and today's 5.2, changing due to chemical reactions between seawater brine and rising magma along the ocean floor. Ries place...

Biological motors sort molecules one by one on a chip

...rescent microtubules to arrive at a Y-junction. By changing the direction of the electrical force, depending on the color of the microtubule, the Delft researchers were able to collect the green and red microtubules in different reservoirs. With their approach to the nano-channels, the researchers killed t...

Report focuses on the role good microbes play in future medicine

...isms interact with these immune defenses, possibly changing the nature of the immune response to other antigens, including commensal and pathogenic organisms," says Walker. The report is the outcome of a colloquium convened by the American Academy of Microbiology in November 2005 to discuss the current state...

Pollutant haze heats the Arctic

...ch the atmosphere blankets the surface. Sea ice is changing very rapidly in the Arctic because of surface warming. This may be one contributing factor." "The Arctic represents the front line of climate change and is projected to warm at a rate at least double that of the Earth as a whole," says University o...

Origen publishes in Nature a robust and versatile method for creating transgenic chickens

...h we are the first to successfully culture without changing their commitment -- proved to be the key to introducing genetic elements into the chicken genome. As a result, we can now take transgene designs that work well in model systems and breed flocks of birds depositing therapeutic proteins in their eggs. ...

Where have all the butterflies gone?

...terflies are in decline, including combinations of changing climate and changing land use. In the short term, he said, butterfly species that breed several times a year may rebound...

Robots manipulating animal behaviour

... interact with the insects, they even succeeded in changing the roaches' behaviour. For example, the darkness-...ur, Deneubourg offers several answers. Firstly, by changing the way animals behave or inducing collective behaviour, scientists can learn much about animal comm...

Researchers find protein that silences genes

...ruit enzymes to perform DNA methylation. Likewise, changing DNA methylation leads to changes in histone modification". Pikaard's other collaborators, all experts in microscopy, are researchers from the Instituto Superior de Agronomia, Tapada da Ajuda, in Lisbon, Portugal, and the Universidade Nova de Lisboa...

Beaver dams create healthy downstream ecosystems

...rea's water cycle and soil conditions, potentially changing plant species and influencing the overall diversity of the ecosystem in the future. They suggest that although there are multiple explanations for the reduction in beaver population, such as alterations in the flow along the Colorado River, similar h...

Important gene controlling tree growth and development found

...just before the trees stop growing and set bud. By changing the activity of the FT gene the scientists could either prolong or shorten the growing season of the tree. They could also determine the mechanisms involved in growth cessation and bud set in the fall. This knowledge is vital if we want to adopt plan...

Researchers discover how bacteria sense their environments

...a chain reaction that leads to a response, such as changing how the flagella (or tails) spin. This allows the bacterium to move toward or away from what it has sensed. Such a mechanism of amplification allows signals from the receptors to travel hundreds of angstroms, a distance used in atomic physics that ...

Study defines effective microbicide design for HIV/AIDS prevention

...active ingredients and delivery vehicles simply by changing the data entered, the researchers said. For example, researchers might specify the thickness of the expected coating layer, the initial concentration of microbicide in that layer, and the microbicide's documented ability to bind to and disable the vi...

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