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What Is Orthodontics?
Date: Aug-28-2012Orthodontics is a branch of dentistry that specializes in treating patients with improper positioning of teeth when the mouth is closed (malocclusion), which results in an improper bite. Orthodontics also includes treating and controlling various aspects of facial growth (dentofacial orthopedics) and the shape and development of the jaw. An orthodontics specialist is called an orthodontist. Orthodontics used to be called orthodontia - the word comes from the Greek orthos, meaning "straight, perfect or proper", and dontos, which means "teeth"...
Scientists Develop Rapid-Scanning Microscope With No Loss Of Quality
Date: Aug-28-2012Researchers at the University of Leicester have developed a new form of digital microscope which can create an image 100 times faster than regular equipment - without losing image quality. The team of scientists have developed a new type of confocal microscope that produces high-resolution images at very fast speeds. The findings are published on the online journal PLOS ONE. The device, which takes a cue from consumer electronics such as televisions, can be bolted on to a regular microscopes and projects light through a system of mirrors on to the microscopic sample...
Children Drinking From About Half The UK's Private Water Supplies Are Almost 5 Times More Likely To Pick Up Stomach Infections
Date: Aug-28-2012University of East Anglia research shows children at risk from rural water supplies Children drinking from around half the UK's private water supplies are almost five times more likely to pick up stomach infections - according to research from the University of East Anglia (UEA). Research published in the journal PLOS ONE shows children under 10 who drink from contaminated supplies are suffering around five bouts of sickness or diarrhoea a year. This figure is similar to the rates of infection among children in the developing world...
New Non-Invasive Method For Diagnosing Epilepsy
Date: Aug-28-2012Findings could help millions of people who are unable to control seizures. A team of University of Minnesota biomedical engineers and researchers from Mayo Clinic have published a groundbreaking study that outlines how a new type of non-invasive brain scan taken immediately after a seizure gives additional insight into possible causes and treatments for epilepsy patients. The new findings could specifically benefit millions of people who are unable to control their epilepsy with medication. The research was published online in Brain, a leading international journal of neurology...
Whispering Gallery Inspires Virus Detector
Date: Aug-28-2012By affixing nanoscale gold spheres onto a microscopic bead of glass, researchers have created a super-sensor that can detect even single samples of the smallest known viruses. The sensor uses a peculiar behavior of light known as "whispering gallery mode," named after the famous circular gallery in St. Paul's Cathedral in London, where a whisper near the wall can be heard around the gallery. In a similar way, waves of light are sent whirling around the inside of a small glass bead, resonating at a specific frequency...
"Footprints" Of Evolution Found In Regions Of DNA Surrounding Mutations That Confer An Advantageous Trait, Most Of Which Come From Dad
Date: Aug-28-2012Humans inherit more than three times as many mutations from their fathers as from their mothers, and mutation rates increase with the father's age but not the mother's, researchers have found in the largest study of human genetic mutations to date. The study, based on the DNA of around 85,000 Icelanders, also calculates the rate of human mutation at high resolution, providing estimates of when human ancestors diverged from nonhuman primates. It is one of two papers published by the journal Nature Genetics as well as one published at Nature that shed dramatic new light on human evolution...
Persistent Teenage Cannabis Use Linked To Long Term Cognitive Decline
Date: Aug-27-2012Persistent cannabis use among teenagers under 18 years of age results in neuropsychological decline, which persists even after they stop smoking, researchers from the USA and UK reported in Proceedings of the National Academies of Sciences. The authors added that the decrease in IQ did not seem to occur among persistent cannabis users who started after the age of 18. Persistent cannabis use means daily pot smoking. They found that early-onset regular pot users had IQs 8 points lower than their counterparts who never smoked or started after they were 18 years of age...
Discrimination Can Lead To Low Birth Weight In Babies
Date: Aug-27-2012According to a recent study published in Annals of Behavioral Medicine, depression caused by discrimination could eventually result in low weight babies at the time of birth. Valerie Earnshaw and her team from Yale University have determined that although it has been long known that it is important to decrease the risk of health problems in a woman's life in order to avoid low birth weight, new evidence suggests that discrimination on a regular basis against pregnant urban women can play a large part in increased risk of low birth weight among newborns. In the U.S...
Belly Fat Increases Risk Of Death Even In People Of Normal Weight
Date: Aug-27-2012A Mayo Clinic study, which was presented at the European Society of Cardiology Congress in Munich, suggests that people of average weight who have extra fat in their stomach have a higher risk of dying than obese people. People who had the highest cardiovascular death risk and the highest death risk from all causes were those who had central obesity with a normal body mass index (BMI), or a high waist-to-hip ratio. Francisco Lopez-Jimenez, M.D...
Learn New Information While Sleeping
Date: Aug-27-2012New research from Weizmann Institute, published in Nature Neuroscience has discovered that people can actually learn during sleep, which can unconsciously modify their behavior while awake. The study suggests that while people sleep, if certain odors are presented after hearing tones, people start sniffing even if there is no odor presented when they hear the same tones. This happens during sleep and even when people wake up. There have been several past studies explaining the importance of sleep for learning and memory consolidation...
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