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Tag: "until" at biology news

Carnegie Mellon University research reveals how cells process large genes

...ve splice sites may cause additional diseases, but until now we haven't looked for them." Knowledge of recursive splicing also will help investigators predict structures of genes that span large intervals of DNA, Lopez said. Recursive splicing relies on the unusual activity of a ratchetting point, a patt...

Reversal of role for a viral protein associated with the development of lymphoma

...ve splice sites may cause additional diseases, but until now we haven't looked for them." Knowledge of recursive splicing also will help investigators predict structures of genes that span large intervals of DNA, Lopez said. Recursive splicing relies on the unusual activity of a ratchetting point, a patt...

Beetle-inspired switch uses water for bonding

...ttacked, the palm beetle attaches itself to a leaf until the attacker leaves. It adheres with 120,000 droplets of secreted oil, each making a bridgelike contact between the beetle's feet and the leaf. Each droplet is just a few microns wide. Whereas the beetle controls the oil contacts mechanically, Steen'...

For first time, brain cells generated in a dish

..."We can basically take these cells and freeze them until we need them. Then we thaw them, begin a cell-generating process, and produce a ton of new neurons." If the discovery can translate to human applications, it will enhance efforts aimed at finding ways to use large numbers of a person's own cells to ...

Penguin chicks exposed to human visitors experience spike in stress hormone

... of Washington research team has found. It wasn't until chicks with limited human exposure reached 40 to 5...early fledged chicks in tourist areas did not flee until people were within two feet, while those in the areas not visited by tourists sought safety when peo...

Hybrid grass may prove to be valuable fuel source

...itrogen are transferred to the rhizome to be saved until the next growing season, he said. Burning Miscanthus produces only as much carbon dioxide as it removes from the air as it grows, said Heaton, who is seeking a doctorate in crop sciences. That balance means there is no net effect on atmospheric carb...

A novel method to measure circadian cycles

...otal as well as experimentally verified fact. But, until now, to systematically study circadian differences (and thereby hope to rout out the underlying genetic causes), scientists have had to rely on prolonged behavioural observation. To screen for and identify circadian rhythm variations in humans, the ...

Researchers create infectious hepatitis C virus in a test tube

...lly remains undetected for years, or even decades, until it causes advanced liver disease. ...

Why do aneurysms form? New studies suggest leading role for white blood cells

...ay at smooth muscle cells in the wall of the aorta until it starts to fall apart." Researchers have found that AAAs appear to be associated with high levels of enzymes that are capable of doing that eating. But the question of how those enzymes get there, and what prompts them to arrive, has been unanswer...

Several minute intermediate stage in virus-cell fusion discovered; opportunity for drug development

...e it open a little bit but it keeps closing on you until there's enough pressure in the airlock to allow it to open all the way." Melikyan explained, "The pore is an unstable structure at that moment: some pores will open and some won't. It's a crucial point in viral entry because it's critical for the po...

Clear rules needed to govern deep sea bioprospecting: UNU

...uidelines on deep seabed bioprospecting to be used until a binding regime is developed. The guidelines could facilitate cooperation and coordination between states and, drawing on existing global and regional instruments, include measures on conservation, sustainable use and the sharing of benefits. ...

A Father’s Day Gift: Free DNA Paternity Testing

...uidelines on deep seabed bioprospecting to be used until a binding regime is developed. The guidelines could facilitate cooperation and coordination between states and, drawing on existing global and regional instruments, include measures on conservation, sustainable use and the sharing of benefits. ...

Genetics links whale to two different ocean basins

... managed. Humpback whales were hunted commercially until the International Whaling Commission protected the species globally in 1966. "These findings will help us improve our understanding of how populations of whales are connected, both genetically and even culturally, in the form of the haunting songs t...

Pollution-eating bacteria produce electricity

...r of a genus known as Desulfitobacterium, which up until now was not known to have the capacity to generate electricity. These bacteria are most commonly known for their ability to breakdown and detoxify some of the most problematic environmental pollutants, including PCBs and some chemical solvents. "The...

Nanoscale method for investigating living systems

... systems by means of semiconductor technology that until now could be theorized but not directly observed. "To get a feeling of why this is important, you have to understand that each of our cell membranes has specific pores in them that regulate the flow of ions in and out," says Blick. "Through these io...

From a Few Wild Ancestors, a Citrus Cornucopia

...tside the United States. But it hasn’t been known, until recently, just what the collection’s real breadth and scope were. “There were redundancies and gaps in the collection that needed to be sorted out,?says Krueger, “and some specimens had even been mislabeled.?Mistakes are costly for curators, since a...

Neanderthal teeth grew no faster than comparable modern humans'

...hey thrived from about 150,000 to 30,000 years ago until their lineage failed for as-yet unknown reasons. M...Africa, and Inuit from Alaska dating from 500 B.C. until the present. "We chose these three groups since they would provide a good cross-section of various...

No small feat: First ever gene therapy success for muscular dystrophy achieved

...reated animals. "While we have much farther to go until we can say gene therapy will work in children, we have shown here a glimmer of hope by presenting the first evidence of a successful gene therapy approach that improved both the general health and longevity in mice with congenital muscular dystrophy,...

Ships bring alien jellyfish invaders to our shores

...etrospect it's easy to see how this wasn't noticed until now. "When you examine moon jellyfish from locations from around the world they look very similar; it's only when you analyse their DNA as we did, that it becomes obvious that they're very different. This means that traditional methods that compare ...

Researchers discover how malaria parasite disperses from red blood cells

...od cells, the parasite multiplies inside the cell, until the cell ruptures and releases them. The newly released merozoites infect still other cells, and the process begins again. To conduct the study, the researchers stained red blood cells infected with P. falciparum with two kinds of dye, explained ...

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