Mission to discover hundreds of black holes could unlock secrets of the Universe
2014-11-14
A team of Cardiff University researchers have made a breakthrough in helping scientists discover hundreds of black holes throughout the universe.
When two detectors are switched on in the US next year, the Cardiff team hope their research will help scientists pick up the faint ripples of black hole collisions millions of years ago, known as gravitational waves.
Black holes cannot be seen, but scientists hope the revamped detectors - which act like giant microphones - will find remnants of black hole collisions.
Led by Dr Mark Hannam from the School of Physics and Astronomy, ...
Killing cancer by protecting normal cells
2014-11-14
(PHILADELPHIA) - Although radiation treatments have become much more refined in recent years, it remains a challenge to both sufficiently dose the tumor while sparing the surrounding tissue. A new anti-cancer drug, already in clinical development, may help address this issue by protecting normal cells - but not the cancer - from the effects of radiation. The research, published November 14th in Molecular Cancer Therapeutics, further suggests this drug may also be useful in treating accidental exposure to radiation.
"It was a stroke of luck that the drug that most effectively ...
Nonsmokers in automobiles are exposed to significant secondhand smoke
2014-11-14
Nonsmokers sitting in an automobile with a smoker for one hour had markers of significantly increased levels of carcinogens and other toxins in their urine, indicating that secondhand smoke in motor vehicles poses a potentially major health risk according to a groundbreaking study led by UC San Francisco researchers.
The nonsmoking passengers showed elevated levels of butadiene, acrylonitrile, benzene, methylating agents and ethylene oxide. This group of toxic chemicals is "thought to be the most important among the thousands in tobacco smoke that cause smoking-related ...
Scientists uncover vast numbers of DNA 'blind spots' that may hide cancer-causing mistakes
2014-11-14
Cancer Research UK scientists have found more than 400 'blind spots' in DNA which could hide cancer-causing gene faults, according to research published* today (Friday) in Cancer Research.
The researchers found hidden faults in areas that are tricky for gene-reading technology to decode. This technique, which unravels cancer's genetic blueprint, is an important part of the research that scientists carry out to understand more about cancer's biology.
By finding new ways to unlock these blind spots in the future, the researchers hope this will help us understand these ...
Warmest oceans ever recorded
2014-11-14
"This summer has seen the highest global mean sea surface temperatures ever recorded since their systematic measuring started. Temperatures even exceed those of the record-breaking 1998 El Niño year," says Axel Timmermann, climate scientist and professor, studying variability of the global climate system at the International Pacific Research Center, University of Hawaii at Manoa.
From 2000-2013 the global ocean surface temperature rise paused, in spite of increasing greenhouse gas concentrations. This period, referred to as the Global Warming Hiatus, raised a lot ...
Western researchers identify estrogen's role in regulating common health disease risks
2014-11-13
What makes some women more susceptible to heart disease than others?
To help answer that question, researchers at Western University's Robarts Research Institute have identified that an estrogen receptor, previously shown to regulate blood pressure in women, also plays an important role in regulating low-density lipoprotein (LDL) cholesterol levels. LDL, also known as bad cholesterol, drives the process that leads to heart disease.
This finding provides evidence that the hormone estrogen plays a key role in regulating two of the most common risk factors for heart disease ...
New Alzheimer's-related memory disorder identified
2014-11-13
VIDEO:
A multi-institutional study has defined and established criteria for a new neurological disease closely resembling Alzheimer's disease called primary age-related tauopathy (PART). Patients with PART develop cognitive impairment that can...
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LEXINGTON, Ky (Nov. 13, 2014) -- A multi-institutional study has defined and established criteria for a new neurological disease closely resembling Alzheimer's disease called primary age-related tauopathy ...
UH chemists develop porous molecules that bind greenhouse gases
2014-11-13
HOUSTON, Nov. 13, 2014 - A team of University of Houston (UH) chemistry researchers have developed a molecule that assembles spontaneously into a lightweight structure with microscopic pores capable of binding large quantities of several potent greenhouse gases.
"Greenhouse gases, such a carbon dioxide, have received much attention lately because of their potential to dramatically affect Earth's climate, primarily the temperature of the planet," said Ognjen Miljanić, a UH associate professor of chemistry and leader of the team.
While carbon dioxide presents the ...
'Tis the season to indulge in walnuts
2014-11-13
(SACRAMENTO, Calif.) -- Researchers at UC Davis and other institutions have found that diets rich in whole walnuts or walnut oil slowed prostate cancer growth in mice. In addition, both walnuts and walnut oil reduced cholesterol and increased insulin sensitivity. The walnut diet also reduced levels of the hormone IGF-1, which had been previously implicated in both prostate and breast cancer. The study was published online in the Journal of Medicinal Food.
"For years, the United States government has been on a crusade against fat, and I think it's been to our detriment," ...
'Topological insulators' promising for spintronics, quantum computers
2014-11-13
WEST LAFAYETTE, Ind. - Researches have uncovered "smoking-gun" evidence to confirm the workings of an emerging class of materials that could make possible "spintronic" devices and practical quantum computers far more powerful than today's technologies.
The materials are called "topological insulators." Unlike ordinary materials that are either insulators or conductors, topological insulators are in some sense both at the same time - they are insulators inside but always conduct electricity via the surface. Specifically, the researchers have reported the clearest demonstration ...
Seismic hazard in the Puget Lowland, Washington state, USA
2014-11-13
Boulder, Colo., USA - Seismic hazards in the Puget Lowland of northwestern Washington include deep earthquakes associated with the Cascadia subduction zone and shallow earthquakes associated with crustal faults across the region. Research presented in Geosphere this month establishes not only that one of the more prominent crustal faults, the Darrington-Devils Mountain fault zone, displays evidence of strong earthquakes in the past, but that it will likely be a source of strong earthquakes in the future.
Paleoseismic investigations on the Darrington-Devils Mountain fault ...
Modified DNA backbone enables success of existing and novel oligonucleotide therapeutics
2014-11-13
New Rochelle, NY, November 13, 2014--The two U.S. FDA approved oligonucleotide-based drugs on the market both have a modified chemical backbone made of phosphorothioates. The therapeutic advantages of the phosphorothioate group and the new types of gene expression-regulation oligonucleotide drugs that it is enabling are detailed in a Review article in Nucleic Acid Therapeutics, a peer-reviewed journal from Mary Ann Liebert, Inc. publishers. The article is available free on the Nucleic Acid Therapeutics website until December 13, 2014.
In the article "Phosphorothioates, ...
Study: Fungus behind deadly disease in walnut trees mutates easily, complicating control
2014-11-13
WEST LAFAYETTE, Ind. - Researchers from Purdue and Colorado State universities have discovered that the fungus responsible for thousand cankers disease, a lethal affliction of walnut trees and related species, has a rich genetic diversity that may make the disease more difficult to control.
Adjunct assistant professor of forestry Keith Woeste and fellow researchers analyzed the genes of 209 samples of Geosmithia morbida from 17 regions of the U.S. to determine the genetic diversity of the fungus, its possible origin and how it spread throughout the West and to parts of ...
Study offers new clue into how anesthesia works
2014-11-13
Anesthesia, long considered a blessing to patients and surgeons, has been a mystery for much of its 160-plus-year history in the operating room.
No one could figure out how these drugs interact with the brain to block pain and induce a coma-like, memory-free state. The debate has divided the anesthesia research community into two camps: one that believes anesthetics primarily act on the cell membrane (the lipid bilayer) of nerve cells, perhaps altering it to the point that embedded proteins cannot function normally. The other says the membrane proteins themselves are ...
Aiming high: Tel Aviv University research leads to historic comet landing
2014-11-13
For the first time in history, a spacecraft has landed on a comet. The momentous event represents the culmination of 35 years of research on comets by Prof. Akiva Bar-Nun of Tel Aviv University's Department of Geosciences and other scientists working for the European Space Agency.
At 08:35 GMT on Wednesday, November 12, the European Space Agency's Rosetta satellite released its lander Philae towards Comet 67P/Churyumov-Gerasimenko, a large mass of ice and dust some 316 million miles from Earth. The descent took approximately seven hours, with a signal confirming touchdown ...
A beetle and its longtime fungal associate go rogue
2014-11-13
West Lafayette, Ind. (November 13, 2014): Scientists with the U.S. Forest Service and Colorado State University examined a fungus native to North America, the native beetle that carries it, and their host tree and found something surprising: Geosmithia morbida and the walnut twig beetle co-evolved and, while the beetle/fungus complex was once the equivalent of a hang nail for a black walnut tree, it has become lethal.
Research published today in the journal PLOS ONE by U.S. Forest Service scientist Keith Woeste, Colorado State University scientists Marcelo M. Zerillo ...
Total recall: The science behind it
2014-11-13
This news release is available in French. Montreal November 13, 2014 - Is it possible to change the amount of information the brain can store? Maybe, according to a new international study led by the Research Institute of the McGill University Health Centre (RI-MUHC). Their research has identified a molecule that puts a brake on brain processing and when removed, brain function and memory recall is improved. Published in the latest issue of Cell Reports, the study has implications for neurodevelopmental and neurodegenerative diseases, such as autism spectral disorders ...
The answer is blowing in the intergalactic wind
2014-11-13
TORONTO, ON (13 November 2014) Astronomers from the University of Toronto and the University of Arizona have provided the first direct evidence that an intergalactic "wind" is stripping galaxies of star-forming gas as they fall into clusters of galaxies. The observations help explain why galaxies found in clusters are known to have relatively little gas and less star formation when compared to non-cluster or "field" galaxies.
Astronomers have theorized that as a field galaxy falls into a cluster of galaxies, it encounters the cloud of hot gas at the centre of the cluster. ...
Symbiotic plants are more diverse, finds new study
2014-11-13
Some plants form into new species with a little help from their friends, according to Cornell University research published Oct. 27 in the Proceedings of the National Academy of Sciences.
The study finds that when plants develop mutually beneficial relationships with animals, mainly insects, those plant families become more diverse by evolving into more species over time.
The researchers conducted a global analysis of all vascular plant families, more than 100 of which have evolved sugary nectar-secreting glands that attract and feed protective animals, such as ants. ...
Cookie Monster teaches self-control
2014-11-13
Who would have thought a Sesame Street video starring the Cookie Monster, of all characters, could teach preschoolers self-control?
But that's exactly what Deborah Linebarger, an associate professor in Teacher and Learning at the University of Iowa, found when she studied a group of preschoolers who repeatedly watched videos of Cookie Monster practicing ways to control his desire to eat a bowl of chocolate chip cookies.
"Me want it," Cookie Monster sings in one video, "but me wait."
In fact, preschoolers who viewed the Cookie Monster video were able to wait four ...
U of G scientists find way to reduce ovarian cancer tumors, chemo doses
2014-11-13
In a potential breakthrough against ovarian cancer, University of Guelph researchers have discovered how to both shrink tumours and improve drug delivery, allowing for lower doses of chemotherapy and reducing side effects.
Their research appears today in the FASEB Journal, one of the world's top biology publications.
"We hope that this study will lead to novel treatment approaches for women diagnosed with late-stage ovarian cancer," said Jim Petrik, a Guelph biomedical sciences professor. He worked on the study with Guelph graduate student Samantha Russell and cancer ...
Research reveals the real cause of death for some starburst galaxies
2014-11-13
LAWRENCE -- Like hedonistic rock stars that live by the "better to burn out than to fade away" credo, certain galaxies flame out in a blaze of glory. Astronomers have struggled to grasp why these young "starburst" galaxies -- ones that are very rapidly forming new stars from cold molecular hydrogen gas up to 100 times faster than our own Milky Way -- would shut down their prodigious star formation to join a category scientists call "red and dead."
Starburst galaxies typically result from the merger or close encounter of two separate galaxies. Previous research had revealed ...
IU researchers identify key mechanism and potential target to prevent leukemia
2014-11-13
INDIANAPOLIS -- Researchers have identified two proteins that appear crucial to the development -- and patient relapse -- of acute myeloid leukemia. They have also shown they can block the development of leukemia by targeting those proteins.
The studies, in animal models, could lead to new effective treatments for leukemias that are resistant to chemotherapy, said Reuben Kapur, Ph.D., Freida and Albrecht Kipp Professor of Pediatrics at the Indiana University School of Medicine.
The research was reported today in the journal Cell Reports.
"The issue in the field for ...
Plants have little wiggle room to survive drought, UCLA life scientists report
2014-11-13
Plants all over the world are more sensitive to drought than many experts realized, according to a new study by scientists at UCLA and China's Xishuangbanna Tropical Botanical Garden. The research will improve predictions of which plant species will survive the increasingly intense droughts associated with global climate change.
The research is reported online by Ecology Letters, the most prestigious journal in the field of ecology, and will be published in an upcoming print edition.
Predicting how plants will respond to climate change is crucial for their conservation. ...
Research reveals promising technology to expand hard cider industry
2014-11-13
MOUNT VERNON, Wash. -- A new study by researchers at Washington State University shows that mechanical harvesting of cider apples can provide labor and cost savings without affecting fruit, juice, or cider quality.
The study, published in the journal HortTechnology in October, is one of several studies focused on cider apple production in Washington State. It was conducted in response to growing demand for hard cider apples in the state and the nation.
Quenching a thirst for cider
Hard cider consumption is trending steeply upward in the region surrounding the food-conscious ...
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