A chemical found in garlic can kill bacteria that cause life-threatening lung infections in people with cystic fibrosis, research suggests. The study is the first to show that the chemical, known as allicin, could be an effective treatment against a group of infectious bacteria that is highly resistant to most antibiotics.
Sea levels from New York to Newfoundland jumped up about four inches in 2009 and 2010 because ocean circulation changed, a Univ. of Arizona-led team reports in Nature Communications. The team was the first to document that the extreme increase in sea level lasted two years, not just a few months.
Newly developed tiny antennas, likened to spotlights on the nanoscale, offer the potential to measure food safety, identify pollutants in the air and even quickly diagnose and treat cancer. The new antennas are cubic in shape. They do a better job than previous spherical ones at directing an ultra-narrow beam of light where it is needed, with little or no loss due to heating and scattering.
Currently, there are treatments in which wastewater can flow out to the river or sea without causing any environmental problems. These technologies however entail high energy costs, mainly in aeration and pumping, and an elevated economic cost in treating the sludge left over from the treatment process.
The already unclear lines separating research from development are getting even blurrier as more companies allocate some part of their R&D budget to take on riskier projects, and invest in the necessary infrastructure to manage these riskier activities. New products are now being launched out of recently formed "Innovation" organizations", and more are coming from existing “Advanced Development" organizations.
Scientists around the world make use of cell culture techniques on a daily basis. Whether they happen to be working with primary cell cultures, secondary cultures or cell lines, they all face many of the same problems: slow growth, spontaneous differentiation, evaporation, contamination and a host of other issues that require troubleshooting.
Computational Model Reveals the Importance of Transitional Dynamics of “Memory Molecule” in Memory FormationFebruary 24, 2015 9:01 am | by Glen C. Rains | Articles | Comments
The dynamics of a molecule abundant in the synapse, Ca2+/Calmodulin dependent kinase type II (CaMKII), known as the “memory molecule”, are important in memory formation. Synapses are junctions connecting neurons and there’s increasing evidence they store memory when neurons are stimulated by the environment.
Oxytocin, sometimes referred to as the “love” or “cuddle” hormone, has a legendary status in popular culture due to its vital role in social and sexual behavior and long-term bonding. Now researchers from the Univ. of Sydney and the Univ. of Regensburg have discovered it also has a remarkable influence on the intoxicating effect of alcohol.
Researchers at the Univ. of North Carolina School of Medicine have found that the blood platelet protein Rasa3 is critical to the success of the common anti-platelet drug Plavix, which breaks up blood clots during heart attacks and other arterial diseases. The discovery details how Rasa3 is part of a cellular pathway crucial for platelet activity during clot formation.
Deep public divisions over climate change are unrelated to differences in how well ordinary citizens understand scientific evidence on global warming, according to a new study published by Prof. Dan Kahan. In fact, members of the public who score the highest on a climate science literacy test are the most politically polarized on whether human activity is causing global temperatures to rise.
Researchers at McGill Univ. have developed a new, low-cost method to build DNA nanotubes block-by-block, a breakthrough that could help pave the way for scaffolds made from DNA strands to be used in applications such as optical and electronic devices or smart drug delivery systems. Many researchers, including the McGill team, have previously constructed nanotubes using a method that relies on spontaneous assembly of DNA in solution.
When exposed to nitrogen fertilizer over a period of years, nitrogen-fixing bacteria called rhizobia evolve to become less beneficial to legumes, researchers report in a new study. These findings, reported in Evolution, may be of little interest to farmers, who generally grow only one type of plant and can always add more fertilizer to boost plant growth.
Rice Univ. researchers have developed an easy and accurate technique to detect and quantify the amount of asphaltene precipitated from crude oils, which bedevils the oil industry by clogging wells and flow lines. Asphaltene is a complex of hydrocarbon molecules found in crude. As the name suggests, it has uses as the source of asphalt for road construction and can also be made into waterproofing and roofing materials and other products.
When diagnosing a case of Ebola, time is of the essence. However, existing diagnostic tests take at least a day or two to yield results, preventing health care workers from quickly determining whether a patient needs immediate treatment and isolation. A new test could change that: The device, a simple paper strip similar to a pregnancy test, can rapidly diagnose Ebola, as well as other viral hemorrhagic fevers.
An experimental antiviral drug shows some early, encouraging signs of effectiveness in its first human test against Ebola in West Africa, but only if patients get it when their symptoms first appear. A study of the drug, favipiravir, is still in early stages in West Africa, and too few people have been treated to really know whether the drug helps.