All of us are struck with nostalgic feelings from time to time but a new study indicates that nostalgia may serve a greater purpose than just taking us back to the good old days. The results showed that individuals who felt the loneliest turned out to be the most nostalgic. The findings suggest that nostalgia amplifies perceptions of social support, and in this way, counteracts feelings of loneliness.
Numerous studies have shown that people will choose differently, depending on whether they are choosing based on experience or description. But, what is it that causes people to choose differently in the two situations? The results of a new study suggest that feedback plays a key role in decision making. The findings indicate that feedback after repeated choice may drive people towards rational decision making.
Anyone who runs for Prime Minister or President should have an independent health examination to ensure their ability to govern, argues a doctor on bmj.com today.
Kansas State University researchers found that freshwater pollution by phosphorous and nitrogen costs government agencies, drinking water facilities and individual Americans costs the US at least $4.3 billion annually.
For the first time researchers have shown that a commonly used anesthetic can produce changes associated with Alzheimer's disease in the brains of living mammals, confirming previous laboratory studies. In their Annals of Neurology report, which has received early online release, a team of Massachusetts General Hospital investigators shows how administration of the gas isoflurane can lead to generation of the toxic amyloid-beta protein in the brains of mice.
It appears that stroke patients who receive both intravenous thrombolysis, a minimally invasive treatment that dissolves abnormal blood clots, and endovascular interventions, such as drugs and implanting medical devices, are much more likely to recover and have lower chances of dying, according to new research by the Zeenat Qureshi Stroke Research Center at the University of Minnesota Medical School.
Featured in this release are research papers on the following topics: "Ups and downs of Greenland's ice sheet," "Shrinking Arctic ice boosts phytoplankton growth," "Comet-like tail of ion flux streams from Mars," "Surface waves effects in deep ocean," "Potential predictability for some earthquakes?," "Magnetic fields reconnecting in near-Earth space," "Studying Saturn's oxygen ion supply," "Global climatology of drizzle," "Observations imply water vapor-climate feedback," "A seasonal look at soil moisture" and "Wildfires boost ozone beyond health standards."
Root-knot nematodes are microscopic, omnipresent worms that cause major damage to horticultural and field crops in sub-tropical regions, resulting in significant financial losses to growers and gardeners. To combat these parasites without the use of chemical pesticides, scientists are focusing more research on developing new, parasite-resistant varieties of vegetables.
Geometry problems are best solved by a combination of verbal and spatial strategies, but not shape-based imagery strategies.

