Tag: "patches" at biology news

Charting ever-changing genomes

...le genomes for all the software fixes and security patches accumulated over time. In a first trial run, the scientists catalogued the genetic variations in 23 strains of the mustard weed Arabidopsis thaliana that were collected from the wild all over the world. Our study represents one of the first whole g...

Nature's secrets yield new adhesive material

...ur mouth, he noted. It may be possible to develop patches in the future that can be applied on the inside of the cheek to cover damaged tissue....

Cardiac patches stimulate regeneration, improve function after heart attack

...d Gelfoam only. Twelve weeks later, the treated patches were still releasing biologically-active periostin. The periostin-treated rats had improved cardiac pumping ability, as indicated by increased ejection fraction and improved ventricular remodeling on echocardiograms, and decreased left-ventricular wa...

The origin of perennial water-ice at the South Pole of Mars

... carbon dioxide (CO2) ice, tens-of-kilometres-wide patches of water-ice, and deposits covered by a thin layer of CO2 ice. The discovery of the ice deposits of the first type confirms the long-standing hypothesis that CO2 acts as a cold-trap for water-ice. But how were the other two types of deposits, not ...

Birds take cues from their competitors

...ied flycatchers prefer to settle near tits, and to patches with tits rather than without, Forsman said. These cavity-nesting birds share the same predation risk, along with much of their other breeding ecology, and they have been shown to compete with each other. If patch and microhabitat copying occurs, why...

Rove beetles act as warning signs for clear-cutting consequences

...must ensure that forest managers conserve adequate patches of old forests or make adequate long term plans for their full recovery, said Spence. ...

Some forest birds can survive in agricultural countryside with limited habitat conservation

...cover only 4.6 percent of the area. "These small patches of trees are critical for these native birds," Sekercioglu said. Sekercioglu is optimistic about the implications of his findings for endangered bird species. "Even modest restoration efforts to increase tree land cover can help these birds more th...

UF scientists identify cancer virus' genetic targets

...d with AIDS and with organ transplants that causes patches of red or purple tissue to grow under peoples skin...nically its in the family of herpesviruses causes patches of cancerous tissue bursting with blood vessels. The disease itself is rare in the United States and...

Survival of the rarest: Fruit flies shed light on the evolution of behavior

... and they are also more likely to explore new food patches than sitters. The researchers explored the evolutionary mechanism that favours the persistence of both of these types in nature. Doctoral student Mark Fitzpatrick raised colonies of flies with different ratios of rovers to sitters and different con...

Slow but sure -- Burned forest lands regenerate naturally

...inant conifer regeneration. Seed was provided by patches of surviving trees or nearby unburned forest, which were rarely more than a few hundred yards from fire-killed trees. The relationship of shrub competition with tree seedlings also was surprising. On low and middle elevation sites, there were actuall...

Engineering the heart piece by piece

...heir success in growing pulsing, three-dimensional patches of bioengineered heart muscle, or BEHM. That paper... raising the possibility of engineering customized patches to meet the specific requirements of patients. All of these approaches are described in the recent r...

Neighbors gone, fruits gone, species gone

...diana is the maze of spiky leaves offered by dense patches of Pandanus plants. In an experiment carried out i...ow that Trochetia plants growing close to Pandanus patches had a higher chance of being pollinated and produce fruit than plants further away. Thus, Trochetia ...

Antarctic marine explorers reveal first biological changes after collapse of polar ice shelves

...elatinous sea squirts. The scientists found dense patches of sea squirts and say they were likely able to colonize the Larsen B area only after ice shelf broke in 2002. Very slow-growing animals called glass sponges were discovered, with greatest densities in the Larsen A area, where life forms have had se...

Recently discovered species gain protection

...sized bird restricted to a few tiny remnant forest patches in the Antioquia Department of Colombia, in the Central Cordillera of the Andes. It is so restricted in its distribution that it evaded discovery until 1999, and has been identified by the Alliance for Zero Extinction as a priority conservation spec...

Africa's least-known carnivore in Tanzania

...en the fragmentation and small sizes of the forest patches in which they live, full protection of nearby forests would improve conditions for conserving this species." In 2004, WCS conservationists working in the Southern Highlands of Tanzania discovered a new species of primate--the kipunji monkey--which ...

Lab on a Chip and Corning Incorporated are pleased to announce

...ts include disposable non-electronic drug delivery patches for large molecule therapeutics and a family of microfluidic-based tools for elucidating basic cell biology questions related to cancer, developmental biology and stem cells. These projects have resulted in a number of patents. Professor Beebe has al...

Satellite radar gauges water levels in Louisiana wetlands

...etland plants diffuse the radar signal, while open patches of water are often so calm that their surface reflects the signal very strongly. Strong signals confuse the satellite's onboard receiver, so the software that converts the radar signal to height measurements doesn't work properly. Scientists believ...

Sandia research to focus on early detection of harmful algal blooms

...producers at the depths of the food web. The dense patches (or "blooms") that sometimes accumulate near the surface of the water, however, can produce potent neurotoxins that are then transferred through the food chain, accumulating in zooplankton and shellfish, eventually harming or even killing marine mamm...

Control mechanism for biological pattern formation decoded

...n pattern of substances in the form of stripes and patches can be created. An essential requirement for this is that the inhibitor can be distributed faster through diffusion than the activator, thereby stabilizing the irregular distribution. This kind of dynamic could determine the arrangement of periodic b...

Extraordinary life found around deep-sea gas seeps

...ng at the core of the seeps. Around the rocks were patches of blackened sediment and pockets of white bacterial mats. Most sites also had extensive shell beds consisting of live and dead shells of various types of clams and mussels. These were fringed with stands of another type of deep-sea tube worm that i...

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(Date:5/22/2013)... The feared Legionella pneumophila bacteria is responsible ... pneumonia. In order to infect us, this pathogen has ... and go unnoticed in our cells, thus avoiding these ... the Basque biosciences research centre, CIC bioGUNE, in which ... the USA and the National Supercomputation Centre in Barcelona ...
(Date:5/22/2013)... additives known as phthalates (pronounced THAL-ates) are odorless, ... in flooring, plastic cups, beach balls, plastic wrap, ... Control and Preventionthe bodies of most Americans. Once ... scrutiny. A growing collection of evidence suggests dietary ... and mix with food) may cause significant metabolic ...
(Date:5/21/2013)... Wash. A new analysis shows that the nation,s ... of enough algae to produce up to 25 billion ... States, one-twelfth of the country,s yearly needs. , The ... resources that would be needed to grow significant amounts ... results were published in the May 7 issue of ...
Breaking Biology News(10 mins):Mechanism discovered which aids Legionella to camouflage itself in the organism 2Study links chemicals widely found in plastics and processed food to elevated blood pressure in children and teens 2Going green: Nation equipped to grow serious amounts of pond scum for fuel 2Going green: Nation equipped to grow serious amounts of pond scum for fuel 3Going green: Nation equipped to grow serious amounts of pond scum for fuel 4
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