Stopping and cooling most of the atoms of the periodic table is now possible. Physicists stopped atoms by passing a supersonic beam through an "atomic coilgun" and cooled them using "single-photon cooling." The techniques are a major step forward in atomic physics and have a variety of scientific and technological applications. They could be used to determine the mass of the neutrino, which is the primary candidate for dark matter.
Researchers have designed a sensor necklace that records the date and time a pill is swallowed, which they hope will increase drug compliance and decrease unnecessary health care costs. The device could be used to ensure that the elderly and subjects in clinical drug trials take their medications as directed by a physician. The necklace, called MagneTrace, contains an array of magnetic sensors that could be used to detect when specially-designed medication containing a tiny magnet passes through a person's esophagus. And for persons who may not want to wear a necklace, MagneTrace sensors can be incorporated into a patch attached to the chest.
Throughout the 12th and 13th centuries -- during the time of the Crusades -- ceramic vessels reached Acre from: Mediterranean regions, the Levant, Europe, North Africa, and even China -- reveals new research, which examined trade of ceramic vessels.
While doctors already face many challenges in treating patients with cancer, treating pregnant women with the disease, in particular, can be quite difficult as studies suggest that certain therapies can harm developing fetuses. According to the results of a new study expectant women treated with imatinib, a commonly used therapy for chronic myeloid leukemia, may be at moderate risk of developing fetal abnormalities.
It's a technique that has previously been used for oil exploration -- now researchers have developed a new, highly sensitive, anti-doping steroid test using hydropyrolysis.
Although children of alcoholics have a greater risk of developing alcohol-use disorders, not all children of alcoholics will develop alcohol-use disorders. A new study uses functional magnetic resonance imaging to examine brain activity of adolescent children of alcoholics. Findings indicate that different brain regions may contribute to whether children of alcoholcs will be resilient or vulnerable to the development of alcohol-use disorders.
NASA's Cassini spacecraft has found evidence of material orbiting Rhea, Saturn's second largest moon. This is the first time rings may have been found around a moon. A broad debris disk and at least one ring appear to have been detected by a suite of six instruments on Cassini specifically designed to study the atmospheres and particles around Saturn and its moons.
The exchange of genetic material between two closely related strains of the influenza A virus may have caused the 1947 and 1951 human flu epidemics, according to biologists. The findings could help explain why some strains cause major pandemics and others lead to seasonal epidemics.
A powerful sensor that can detect airborne pathogens such as anthrax and smallpox in less than three minutes has been developed. Current sensors take at least 20 minutes to detect harmful bacteria or viruses in the air. The device could be used in buildings, subways and other public areas, and can currently detect 24 pathogens, including anthrax, plague, smallpox, tularemia and E. coli.
Researchers involved in a large, multi-institutional study using positron emission tomography imaging with the radiotracer fluorodeoxyglucose were able to classify different types of dementia with very high rates of success, raising hopes that dementia diagnoses may one day be made at earlier stages.
Microbes living in the oceans play a critical role in regulating Earth's environment, but very little is known about their activities and how they work together to help control natural cycles of water, carbon and energy.
The combination of negative mother-daughter relationships and low blood levels of serotonin, an important brain chemical for mood stability, may be lethal for adolescent girls, leaving them vulnerable to engage in self-harming behaviors such as cutting themselves.
American eels are fast disappearing fromrestaurant menus as stocks have declined sharply across the North Atlantic. While the reasons for the eel decline remain as mysterious as its long migrations, a recent study says shifts in ocean-atmosphere conditions may be a primary factor in declining reproduction and survival rates.
Impaired brain function is a prominent and still unsolved problem in AIDS. Shortly after an individual becomes infected with HIV, the virus can invade the brain and persist in this organ for life. Many HIV-infected individuals experience disturbances in memory functions and movement, which can progress to serious dementia. How the virus causes brain disease is still unclear.