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Tag: "unlike" at biology news

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

..., is fed by chemical energy from within the Earth, unlike ecosystems that are driven by photosynthesis or hot emissions from the planet's crust. Domack and his coauthors propose that methane from deep underwater vents likely provide the energy source capable of sustaining the chemical life at the observed 8...

Penguin chicks exposed to human visitors experience spike in stress hormone

...inutes of capture to establish a baseline because, unlike a hormone such as adrenaline, it takes several minutes for corticosterone to build up in the bloodstream after a stressful event, such as being captured. Additional blood samples were drawn after 30 and 60 minutes. The same procedures were followed w...

Expanding forests darken the outlook for butterflies, study shows

...se the number and size of alpine meadows. However, unlike the park areas, the unprotected land areas are often used for commercial purposes and are therefore less likely to be allowed to burn. "They do prescribed burning in the national parks for general maintenance, but they also do it to increase the mea...

Researchers devise new technique for creating human stem cells

...m cells. "Our assays showed that the hybrid cells, unlike adult cells, showed the development potential of embryonic stem cells," said Eggan. "We found they could be induced to mature into nerve cells, hair follicles, muscle cells and gut endoderm cells. And, since these cell types are derived from three di...

Nicotine triggers the same brain reward circuitry as opiates

...ng an environment with the drug's reward. However, unlike opiates, nicotine does not directly activate the brain's opiate receptors, but activates the natural opioid reward pathway in the brain. The researchers, led by Julie Blendy of the Transdisciplinary Tobacco Use Research Center (TTURC) at the Univers...

Stem cell training program to make its Stanford debut

... is a surprisingly spacious barrel-like structure, unlike any protein fold ever seen before. Not only does this wide barrel allow Orf2 to act on such a wide range of aromatic molecules, its discovery could also shed new light on the relationship between an enzyme’s structure, the way it has evolved, and the...

Promiscuous Catalytic Activity Possessed by Novel Enzyme Structure

... is a surprisingly spacious barrel-like structure, unlike any protein fold ever seen before. Not only does this wide barrel allow Orf2 to act on such a wide range of aromatic molecules, its discovery could also shed new light on the relationship between an enzyme’s structure, the way it has evolved, and the...

Caloric restriction won't dramatically extend life span in humans: UCLA research

...ried to hold them, and had an unpleasant demeanor, unlike the more docile animals given more "normal" amounts of food, Phelan said. "I think about food all the time," he said. "I'm not going to be so extreme that I become the mouse that bites anyone who touches me. My advice about food is be sensible, and ...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...a to the instrument's receivers. It's a system not unlike those used in ultrasound procedures for biomedical applications. "One of the most amazing aspects of this research is that we were able to see 375,000 of these animals, many as small as one millimeter in length," said Jaffe, a research oceanographer...

Improved statistical tools reveal many linked loci

...e gene expression throughout an entire genome. And unlike earlier approaches to understanding how multiple loci interact, the new technique can distinguish between a group of genes with a linked subset and a group of genes with "joint linkage," where each gene site links to another. "In some ways, it looks...

Researchers reveal secrets of flying snakes

...gliding birds, maintain a constant wing structure, unlike these flying snakes that whip their bodies through the air. "Although all of these other animals may make small adjustments while gliding, none are as dramatic, rhythmic and dynamic as the flying snake," Socha said. During his first study, published...

Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

...her also has minimal sleep during this period, but unlike all other mammals always manages more sleep than her busy newborns. The newborns and mothers gradually increase sleep over a period of months until they reach normal adult levels. As the newborns grow, neither mothers nor offspring show counterbalanc...

Eliminate Data Analysis Bottlenecks in Drug Discovery

...1 that may make for relatively easy picking. PGC1, unlike the vast majority of proteins, only uses sirtuin1 to remove its "decorations," called acetyl groups. Most other proteins can have the groups plucked off by a number of different enzymes. "PGC1 is a 'clean' target for sirtuin1," says Puigserver. "If ...

Computational verification of protein-protein interactions by orthologous co-expression

...1 that may make for relatively easy picking. PGC1, unlike the vast majority of proteins, only uses sirtuin1 to remove its "decorations," called acetyl groups. Most other proteins can have the groups plucked off by a number of different enzymes. "PGC1 is a 'clean' target for sirtuin1," says Puigserver. "If ...

PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information

...1 that may make for relatively easy picking. PGC1, unlike the vast majority of proteins, only uses sirtuin1 to remove its "decorations," called acetyl groups. Most other proteins can have the groups plucked off by a number of different enzymes. "PGC1 is a 'clean' target for sirtuin1," says Puigserver. "If ...

Future diabetes drugs may target new protein interaction

...1 that may make for relatively easy picking. PGC1, unlike the vast majority of proteins, only uses sirtuin1 to remove its "decorations," called acetyl groups. Most other proteins can have the groups plucked off by a number of different enzymes. "PGC1 is a 'clean' target for sirtuin1," says Puigserver. "If ...

Molecular thermometers on skin cells detect heat and camphor

...is communicated to the brain, since keratinocytes, unlike neurons, have no direct link with the central nervous system. Keratinocytes do, however, touch nerve fibers, and it may be through these contacts that the signals are communicated. Investigations into this possibility are ongoing. ### To read the a...

At long last, scientists figure out how plants grow

...in 1) has previously been shown to bind auxin. But unlike TIR1 and auxin, it remains unclear whether the pairing of ABP1 and auxin actually stimulates plant growth. The research reported by Estelle, Dharmasiri and Dharmasiri was funded by grants from the National Science Foundation, the National Institutes...

A frog's life is food for thought

...p from The University of Queensland has found that unlike most animals, which can't digest food after long periods of starvation, the green-striped burrowing frog is able to absorb nutrients 40 percent more effectively after 3 months without food, than frogs that had eaten regularly. "They can take massive...

Falling ants glide back to trunk to avoid dangers of forest floor

...ic in the absence of wings." The team found that, unlike flying squirrels that can glide horizontally for long distances, the ants fall at a relatively high velocity, around 4 meters per second (12 feet per second), and approach the tree at a steep angle. This means they frequently bounce off the trunk, th...

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