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Swimming devices could deliver drugs inside the body

Wed, 02/12/2015 - 1:43pm
A new method of guiding microscopic swimming devices has the potential to deliver drugs to a targeted location inside the body, according to new research. These devices, which are a similar size to cells and bacteria -- around a hundredth of the average diameter of a strand of human hair -- could be used to deliver drugs to a specific location inside the body or outside of the body to diagnose diseases in blood samples, say scientists.
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Liquid metal 'nano-terminators' target cancer cells

Wed, 02/12/2015 - 1:42pm
A new drug delivery technique has been developed that uses a biodegradable liquid metal to target cancer cells. The liquid metal drug delivery method promises to boost the effect of cancer drugs.
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How bacterial predators evolved to kill other bacteria without harming themselves

Wed, 02/12/2015 - 1:42pm
How predatory bacteria function has been little understood to date. Predators have been found to produce a protein 'antidote' that protects them from their own weapons. Understanding how these predators attack bacteria could provide new ways of combatting antimicrobial resistance, say experts.
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Even thermally tolerant corals are in hot water when it comes to bleaching

Wed, 02/12/2015 - 1:42pm
Scientists have discovered that corals adapted to naturally high temperatures, such as those off the north west coast of Australia, are nonetheless highly susceptible to heat stress and bleaching.
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Quantum spin on molecular computers

Wed, 02/12/2015 - 1:42pm
If quantum computers existed, they would revolutionize computing as we know it. Based on fundamental properties of matter, the potential power of these theoretical workhorses would solve problems in a new way, cracking extremely complex spy codes and precisely modeling chemical systems in a snap. Researchers have now created cleverly designed molecules to get one step closer to this goal.
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CT and 3-D printing aid surgical separation of conjoined twins

Wed, 02/12/2015 - 1:42pm
A combination of detailed CT imaging and 3-D printing technology has been used for the first time in the surgical planning for separation of conjoined twins, according to a new study.
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Breast density alone not a risk factor for cancer, study suggests

Wed, 02/12/2015 - 1:42pm
Breast density may not be a strong independent factor for breast cancer risk, according to a new study. Prior research has shown an association between breast density and breast cancer. In addition, cancers in dense breast tissue are more difficult to see on mammograms. As a result, some women with dense breasts are advised to get supplementary screening with ultrasound or MRI. Some U.S. states have enacted legislation mandating breast density reporting to women undergoing mammography
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Link found between early-stage brain and heart disease

Wed, 02/12/2015 - 1:42pm
A connection between very early stages of brain and heart disease has been identified by researchers in the Netherlands studying thousands of healthy adults.
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Imaging yields evidence of heart disease in archeological find

Wed, 02/12/2015 - 1:42pm
Researchers using modern imaging techniques on hearts more than 400 years old found at an archeological site were able to learn about the health conditions of the people buried there, according to a new study.
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Online game reveals something fishy about mathematical models

Wed, 02/12/2015 - 5:08am
How can you tell if your mathematical model is good enough? Researchers have now implemented a Turing test in the form of an online game (with over 1700 players) to assess how good their models were at reproducing collective motion of real fish schools.
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Taking antidepressants with cancer drug does not increase breast-cancer recurrence

Wed, 02/12/2015 - 5:08am
A large study of patients with breast cancer who took the anti-cancer drug tamoxifen while taking an antidepressant were not found to have an increased risk of recurrence, according to a new study.
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Camouflaged cuttlefish employ electrical stealth

Wed, 02/12/2015 - 5:08am
In addition to its visual camouflage, the Common cuttlefish (Sepia officinalis) has a stealth technology to protect itself from predators that might detect it in the electrical spectrum. The 'bioelectric fields' it masks aren't anything like the 500 volts an electric eel produces, they're just a tiny electrical artifact of the ion exchanges caused by the animal's metabolic processes, 75,000 times weaker than the voltage of an AAA battery.
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Global diet is getting sweeter, particularly when it comes to beverages

Wed, 02/12/2015 - 5:08am
The global diet is getting sweeter, particularly when it comes to beverages, say researchers. Currently, 68% of packaged foods and beverages in the USA contain caloric sweeteners, 74% include both caloric and low-calorie sweeteners, and just 5% are made with low-calorie sweeteners only. The added sugar comes from hundreds of different versions of sugar, all of which have the same equal health effect.
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Negative news stories about statins are linked to people discontinuing treatment

Wed, 02/12/2015 - 5:08am
Negative news stories about statins are linked to some people choosing to discontinue their statin treatment, which, in consequence, is associated with an increased risk of heart attacks and dying from heart disease, suggests a new Danish study.
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Adverse outcomes of climate change cannot be resolved by the health community alone

Tue, 01/12/2015 - 11:10pm
Researchers have reviewed the links between climate change, the processes leading to greenhouse gas emissions and health outcomes. The authors conclude that there are collaborative opportunities to create solutions to the link between the two -- it's not just up to the doctors to provide a cure.
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Strep bacteria resistance to antibiotics studied by student-athletes

Tue, 01/12/2015 - 11:09pm
While balancing all their obligations is a challenge, student researchers say their athletic training makes them more focused in their research to learn why bacteria becomes resistant to antibiotics.
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Physicists propose new plasma-based method to treat radioactive waste

Tue, 01/12/2015 - 11:09pm
Physicists are proposing a new way to process nuclear waste that uses a plasma-based centrifuge. Known as plasma mass filtering, the new mass separation techniques would supplement chemical techniques. It is hoped that this combined approach would reduce both the cost of nuclear waste disposal and the amount of byproducts produced during the process.
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Photonic 'sintering' may create new solar, electronics manufacturing technologies

Tue, 01/12/2015 - 11:04pm
Engineers have made a fundamental breakthrough in understanding the physics of photonic 'sintering,' which could lead to many new advances in solar cells, flexible electronics, various types of sensors and other high-tech products printed onto something as simple as a sheet of paper or plastic.
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Parasitic tapeworm influences behavior and lifespan of uninfected members of ant colonies

Tue, 01/12/2015 - 11:04pm
Ants are quite often infected by parasites. For example, tapeworms use ants as intermediate hosts for a part of their development phase before they complete their life cycle in their main host. Researchers have now discovered that such parasites not only change the appearance and behavior of infected ants but also have an effect on the behavior of uninfected members of the colony.
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Exiled exoplanet likely kicked out of star's neighborhood

Tue, 01/12/2015 - 8:23pm
The Gemini Planet Imager and the Hubble Space Telescope have revealed details of an unusual exoplanet and its star that suggest the planetary system underwent a violent episode in its early history that ejected the planet to a distance equivalent to 16 times the Earth-Pluto distance and roiled the comet belt closer to the star. This resembles what many people think happened in our solar system's past.
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