Brightsurf Science News & Current Events

July 14, 2013
Scientists solve a 14,000-year-old ocean mystery
At the end of the last Ice Age, as the world began to warm, a swath of the North Pacific Ocean came to life.

Is the ice in Greenland in growing decline?
Researchers conclude that predictions of the contribution of both ice shields to the sea level up to the year 2100 may be more than 35 cm too high or too low.

Sexual reproduction only second choice for powdery mildew
Genetically, powdery mildew is perfectly adapted to its host plants.

Drug candidate designed at Scripps Research Institute leads to improved endurance
An international group of scientists has shown that a drug candidate designed by scientists from the Florida campus of The Scripps Research Institute significantly increases exercise endurance in animal models.

Surprise finding reveals how adaptive our immune systems can be
Studies of patients with immunodeficiencies involving single gene mutations can reveal a great deal about our immune systems, especially when actual symptoms do not accord with clinical expectations.

Some volcanoes 'scream' at ever-higher pitches until they blow their tops
Swarms of small earthquakes often precede a volcanic eruption. They can reach such rapid succession that they create a

Antiviral enzyme contributes to several forms of cancer, University of Minnesota researchers say
Researchers at the University of Minnesota have discovered that a human antiviral enzyme causes DNA mutations that lead to several forms of cancer.

Key step in molecular 'dance' that duplicates DNA deciphered
Scientists have captured new details of the biochemical interactions necessary for cell division -- molecular images showing how the enzyme that unwinds the DNA double helix gets drawn to and wrapped around its target.

Baseball players enjoy successful long-term results after elbow surgery
Baseball players undergoing ulnar collateral ligament surgery are able to return to the same or higher level of competition for an extended period of time, according to research presented today at the American Orthopaedic Society for Sports Medicine's Annual Meeting in Chicago, IL.

Continuous satellite monitoring of ice sheets needed to better predict sea-level rise
The length of the satellite record for the Greenland and Antarctic ice sheets is currently too short to tell if the recently reported speed-up of ice loss will be sustained in the future or if it results from natural processes, according to a new study led by Dr.

Carnegie Mellon researchers develop artificial cells to study molecular crowding and gene expression
A team of scientists at Carnegie Mellon University has approximated molecular crowding in an artificial cellular system and found that tight quarters help the process of gene expression, especially when other conditions are less than ideal.

NIH scientists find that proteins involved in immunity potentially cause cancer
A set of proteins involved in the body's natural defenses produces a large number of mutations in human DNA, according to a study led by researchers at the National Institutes of Health.

Undiagnosed pre-diabetes highly prevalent in early Alzheimer's disease study
When Georgetown University neurologist R. Scott Turner began enrolling people with mild to moderate Alzheimer's disease into a nationwide study last year, he expected to find only a handful of participants with undiagnosed glucose intolerance, as all the patients were already under a doctor's care and those with known diabetes were excluded.

Scientists discover kill-switch controls immune-suppressing cells
Scientists have uncovered the mechanism that controls whether cells that are able to suppress immune responses live or die.

EARTH: Corn syrup model splits Yellowstone's mantle plume in 2
Scientists studying the Yellowstone supervolcano have recently published about the unique relationship between the mantle plume to the subduction zone off the Washington-Oregon coast.

Imaging electron pairing in a simple magnetic superconductor
Using a technique to measure the energy required for electrons to pair up and how that energy varies with direction, scientists have identified the factors needed for magnetically mediated superconductivity -- as well as those that aren't.

Global survey of microbial 'dark matter' sheds light on British Columbia's unseen biodiversity
A landmark single-cell genomic study of microorgansims from sites across the globe is highlighting British Columbia's role as an 'oasis' of biodiversity.

Boldly illuminating biology's 'dark matter'
Microbial dark matter comprises the invisible infrastructure of life that can have profound influences on the most significant environmental processes.

DNA abnormalities may contribute to cancer risk in people with type 2 diabetes
A type of genetic abnormality linked to cancer is more common in people with type 2 diabetes than the rest of the population, a new study has found.
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