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Chemists achieve major milestone of synthesis: Remote chiral induction

EurekAlert! - Dom, 06/17/2018 - 22:00
'This new method should allow us to explore a large 'chemical space' that had been essentially off-limits.'

Bolder targets needed to protect nature for people's sake

EurekAlert! - Dom, 06/17/2018 - 22:00
University of Queensland researchers have found that humanity is at risk without more diverse, ambitious and area-specific conservation targets. Associate Professor Martine Maron, Dr. Jeremy Simmonds and Professor James Watson from UQ's School of Earth and Environmental Sciences say current targets lack the scope required to support the critical services that nature provides.

'Slow earthquakes' on San Andreas Fault increase risk of large quakes, say ASU scientists

EurekAlert! - Dom, 06/17/2018 - 22:00
A detailed study of the California fault has discovered a new kind of movement that isn't accounted for in earthquake forecasting.

Bolder targets needed to protect nature for people's sake

EurekAlert! - Dom, 06/17/2018 - 22:00
University of Queensland (UQ) and Wildlife Conservation Society (WCS) researchers argue that the world needs more diverse, ambitious and area-specific targets for retaining important natural systems to safeguard humanity.

Electrical wire properties of DNA linked to cancer

EurekAlert! - Dom, 06/17/2018 - 22:00
New research from the Barton lab finds a connection between a cancer mutation and electron-mediated DNA repair.

New articles in The CRISPR Journal

EurekAlert! - Dom, 06/17/2018 - 22:00
The CRISPR Journal, a new peer-reviewed journal from Mary Ann Liebert, Inc., publishers, announces the publication of its third issue.

Recent clinical trial finds tamsulosin not effective in kidney stone passage

EurekAlert! - Dom, 06/17/2018 - 22:00
Research published in JAMA Internal Medicine found that tamsulosin does not significantly effect patient-reported passage or capture of kidney stones.

Dietary supplement use in children, adolescents

EurekAlert! - Dom, 06/17/2018 - 22:00
About one-third of children and adolescents in the United States use dietary supplements.

Graphic warning labels linked to reduced sugary drink purchases

EurekAlert! - Dom, 06/17/2018 - 22:00
Warning labels that include photos linking sugary drink consumption with obesity, type 2 diabetes, and tooth decay, may reduce purchases of the drinks, according to a new study by researchers from Harvard T.H. Chan School of Public Health and Harvard Business School

Scientists create continuously emitting microlasers with nanoparticle-coated beads

EurekAlert! - Dom, 06/17/2018 - 22:00
Researchers have found a way to convert nanoparticle-coated microscopic beads into lasers smaller than red blood cells. These microlasers, which convert infrared light into light at higher frequencies, are among the smallest continuously emitting lasers of their kind ever reported and can constantly and stably emit light for hours at a time, even when submerged in biological fluids such as blood serum.

Use of alternative medicines has doubled among kids, especially teens

EurekAlert! - Dom, 06/17/2018 - 22:00
Since 2003, the use of alternative medicines among children has doubled. An increased use of omega-3 fatty acids and melatonin among adolescents ages 13 to 18 as the primary driver of the change.

Study suggests well-known growth suppressor actually fuels lethal brain cancers

EurekAlert! - Dom, 06/17/2018 - 22:00
Scientists report finding a potentially promising treatment target for aggressive and deadly high-grade brain cancers like glioblastoma. Publishing online June 18 in Nature Cell Biology, the study also reports the current lack of a drug that hits the molecular target keeps it from being advanced for testing as a therapeutic strategy for patients with few treatment options. The researchers point to a protein that helps regulate cell metabolism called AMPK (AMP-activated protein kinase).

Meeting Paris climate targets will require a substantial reallocation of global investment

EurekAlert! - Dom, 06/17/2018 - 22:00
A new analysis by an international team of scientists led by IIASA shows that low carbon investments will need to markedly increase if the world is to achieve the Paris Agreement aim of keeping global warming well below 2°C.

Faster, cheaper, better: A new way to synthesize DNA

EurekAlert! - Dom, 06/17/2018 - 22:00
Researchers at the Department of Energy's Joint BioEnergy Institute (JBEI) based at Berkeley Lab have pioneered a new way to synthesize DNA sequences through a creative use of enzymes that promises to be faster, cheaper, and more accurate. DNA synthesis is a fundamental tool in the rapidly growing field of synthetic biology, in which organisms can be engineered to do things like decompose plastic and manufacture biofuels and medicines. This discovery could dramatically accelerate the pace of scientific discovery.

New DNA synthesis technique promises rapid, high-fidelity DNA printing

EurekAlert! - Dom, 06/17/2018 - 22:00
Today, DNA is synthesized as an organic chemist would, using toxic chemicals and error-prone steps that limit accuracy and thus length to about 200 base pairs. UC Berkeley and Berkeley Lab researchers have adapted a human enzyme that makes DNA in water to a repetitive process for adding base pairs. Initial tests show that the technique promises to make oligonucleotides 10 times longer, the size of small genes, faster, cheaper and without toxic waste.

Electrically stimulating the brain may restore movement after stroke

EurekAlert! - Dom, 06/17/2018 - 22:00
UC San Francisco scientists have improved mobility in rats that had experienced debilitating strokes by using electrical stimulation to restore a distinctive pattern of brain cell activity associated with efficient movement. The researchers say they plan to use the new findings to help develop brain implants that might one day restore motor function in human stroke patients.

Pancreatic cell size linked to mammalian lifespan, finds zoo animal analysis

EurekAlert! - Dom, 06/17/2018 - 22:00
Ancient Greek philosopher Aristotle observed that larger animals tend to live longer than smaller ones. On June 18 in the journal Developmental Cell, scientists report that it's cell size, not body size, that intrinsically correlates with and perhaps affects lifespan. By examining the pancreases of 24 mammalian species -- including shrews, humans, and tigers -- researchers found that animals with larger pancreatic cells tend to age faster, while smaller cells seem to go hand in hand with longer lifespans.

Scientists learn more about how gene linked to autism affects brain

EurekAlert! - Dom, 06/17/2018 - 22:00
New preclinical research shows a gene already linked to a subset of people with autism spectrum disorder is critical to healthy neuronal connections in the developing brain, and its loss can harm those connections to help fuel the complex developmental condition. Scientists report in Developmental Cell their data clarify the biological role of the gene CHD8 and its protein CHD8 in developing oligodendrocytes, cells that form a protective insulation around nerves.

22,000-year-old panda from cave in Southern China belongs to distinct, long-lost lineage

EurekAlert! - Dom, 06/17/2018 - 22:00
Researchers who've analyzed ancient mitochondrial (mt)DNA isolated from a 22,000-year-old panda found in Cizhutuo Cave in the Guangxi Province of China -- a place where no pandas live today -- have revealed a new lineage of giant panda. The report, published in Current Biology on June 18, shows that the ancient panda separated from present-day pandas 144,000 to 227,000 years ago, suggesting that it belonged to a distinct group not found today.

Heart disease sufferers not exercizing enough

EurekAlert! - Dom, 06/17/2018 - 22:00
Evidence shows that people with existing heart problems or who are at risk of developing them, are ignoring medical advice and not taking enough exercise. New medical treatments have helped people to live longer despite these health problems, but this is causing an escalating burden on public health systems worldwide.

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