http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Urban children with asthma engage in an average of an hour more of screen time daily than the maximum amount American Academy of Pediatrics (AAP) recommends. This is the first study to examine screen time among children with asthma. http://www.physorg.com/news152975897.html Medicine & Health Wed, 04 Feb 2009 13:18:45 EST news152975897 Austrian scientists are trying to understand the mysteries of the holographic principle: How many dimensions are there in our universe? http://www.physorg.com/news152905022.html Physics Tue, 03 Feb 2009 17:37:29 EST news152905022 Your mother's wrinkles - or lack there of, may not be the best predictor of how you'll age. In fact, a new study claims just the opposite. The study, involving identical twins, suggests that despite genetic make-up, certain environmental factors can add years to a person's perceived age. Results just published on the web-based version of Plastic and Reconstructive Surgery, the official medical journal of the American Society of Plastic Surgeons (ASPS), reveal that factors like divorce or the use of antidepressants are the real culprits that can wreak havoc on one's face. http://www.physorg.com/news152884242.html Medicine & Health Tue, 03 Feb 2009 11:51:13 EST news152884242 A new study published in Value in Health reviews the economic burden of migraine in the U.S. and recent clinical findings of the health risks of this neurological condition. This study traces the history of economic articles published on migraine using the PubMed MEDLINE database and archival searches of relevant articles to identify possible health risks associated with migraines that warrant further study. http://www.physorg.com/news152811708.html Medicine & Health Mon, 02 Feb 2009 15:42:02 EST news152811708 "Remember when...?" is how many a wistful trip down memory lane begins. But just how the brain keeps tabs on what happened and when is still a matter of speculation. A computational model developed by scientists at the Salk Institute for Biological Studies now suggests that newborn brain cells -generated by the thousands each day -add a time-related code, which is unique to memories formed around the same time. http://www.physorg.com/news152377532.html Medicine & Health Wed, 28 Jan 2009 15:06:01 EST news152377532 Happiness inequality in the U.S. has decreased since the 1970s, according to research published this month in the Journal of Legal Studies. http://www.physorg.com/news152197090.html Other Sciences Mon, 26 Jan 2009 12:58:49 EST news152197090 (PhysOrg.com) -- Most organisations' flexible work policies sit idly in policy documents, employees too uncomfortable to implement them because they might be frowned upon by employers or co-workers for deviating from the workplace "culture". http://www.physorg.com/news151784065.html Other Sciences Wed, 21 Jan 2009 18:14:51 EST news151784065 (PhysOrg.com) -- With the same type of fiber optic cables used in telecommunications systems, researchers from the Technion-Israel Institute of Technology have developed a way to detect and pinpoint the excavation of tunnels during times of war, such as those used for smuggling weapons into Gaza. The findings will be presented at the Defense, Security and Sensing Conference of SPIE (an international society advancing light-based research) in April 2009 in Orlando, Florida. http://www.physorg.com/news150998298.html Technology Mon, 12 Jan 2009 15:58:18 EST news150998298 A spreading pandemic of myopia among the world`s urban children may be avoided if children spend at least two to three hours each day outdoors. http://www.physorg.com/news150487968.html Medicine & Health Tue, 06 Jan 2009 18:12:48 EST news150487968 Digital mammograms take longer to interpret than film-screen mammograms, according to a study performed at The University of Texas M.D. Anderson Cancer Center in Houston, Texas. http://www.physorg.com/news150481185.html Medicine & Health Tue, 06 Jan 2009 16:19:45 EST news150481185 As adolescents mature into young adults, increasing time constraints due to school or work can begin to impact eating habits in a negative way. In a study published in the January 2009 issue of the Journal of the American Dietetic Association, researchers observed that while young adults enjoy and value time spent eating with others, 35% of males and 42% of females reported lacking time to sit down and eat a meal. They further noted that "eating on the run" was related to higher consumption of unhealthy items like fast foods and lower consumption of many healthful foods. http://www.physorg.com/news150461397.html Medicine & Health Tue, 06 Jan 2009 10:49:57 EST news150461397 (PhysOrg.com) -- The benefits of ridesharing - aka car-pooling - are well known: less traffic, less wear on roads and less fuel consumed, and the ability to engage in pre-office-hours water-cooler talk that can be accomplished without the water cooler. http://www.physorg.com/news150396367.html Technology Mon, 05 Jan 2009 16:46:07 EST news150396367 By leaving the remains of their old exoskeletons, called 'exuviae', in and around their colonies, aphids gain some measure of protection from parasites. Research published in the open access journal BMC Evolutionary Biology has shown that parasitoid wasps are likely to attack the empty shells, resulting in a lower attack rate on their previous occupants - much like in the popular 'shell game' confidence trick. http://www.physorg.com/news148885944.html Biology Fri, 19 Dec 2008 05:12:24 EST news148885944 Interracial and interethnic interactions can often be awkward and stressful for members of both majority and minority groups. People bring certain expectations to their interactions with members of different groups -they often expect that these interactions will be awkward and less successful in establishing positive, long-lasting relationships than interactions with members of one's own racial or ethnic group. These expectations can cause people to interpret the vague comments and behaviors of others more negatively in intergroup situations, further confirming their negative perceptions of these interactions. http://www.physorg.com/news148736501.html Medicine & Health Wed, 17 Dec 2008 11:41:41 EST news148736501 A breakthrough technique that allows scientists to view individually-labeled tumor cells as they move about in real time in a live mouse may enable scientists to develop microenvironment-specific drugs against cancer, researchers report at the American Society for Cell Biology (ASCB) 48th Annual Meeting, Dec. 13-17, 2008 in San Francisco. http://www.physorg.com/news148571378.html Medicine & Health Mon, 15 Dec 2008 13:49:38 EST news148571378 Even though forgetting is such a common occurrence, scientists have not reached a consensus as to how it happens. One theory is that information simply decays from our memory -we forget things because too much time has passed. Another idea states is that forgetfulness occurs when we confuse an item with other items that we have previously encountered (also known as temporal confusability). http://www.physorg.com/news148316647.html Medicine & Health Fri, 12 Dec 2008 15:04:07 EST news148316647 A novel x-ray technique allowing the observation of molecular motion on a time scale never reached before has been developed by a team of researchers from EPFL and the Paul Scherrer Institute (PSI) in Switzerland. Results of the research led by Professor Majed Chergui, head of EPFL's laboratory of Ultrafast Spectroscopy in collaboration with the FEMTO group at PSI appear online December 11 in the journal Science. http://www.physorg.com/news148315504.html Chemistry Fri, 12 Dec 2008 14:45:04 EST news148315504 Researchers at The Scripps Research Institute have solved one of biology's neatest little tricks: they have discovered how a cell's outer membrane pinches a little pouch from itself to bring molecules outside the cell inside -without making holes that leak fluid from either side of the membrane. http://www.physorg.com/news148224743.html Chemistry Thu, 11 Dec 2008 13:32:23 EST news148224743 (PhysOrg.com) -- According to PhD student Albert Douma, of the University of Twente, Netherlands, it is possible to optimize the handling of inland container barges in the port of Rotterdam without management from the top. This is similar to the way in which ants organize themselves, without a central director. As a result of his ‘multi-agent` approach, the time barges spend in the port can be reduced considerably. http://www.physorg.com/news148139892.html Other Sciences Wed, 10 Dec 2008 13:58:12 EST news148139892 The holiday season is the busiest shopping time of the year. According to the National Retail Federation, more than 172 million shoppers hit the stores on Black Friday weekend this year - up from 147 million in 2007. http://www.physorg.com/news148131513.html Other Sciences Wed, 10 Dec 2008 11:38:33 EST news148131513 Researchers from Boston University's Slone Epidemiology Center have found that reducing time spent watching television and increasing time spent walking briskly or engaged in vigorous physical activity may reduce the incidence of type 2 diabetes in African-American women. These findings appear on-line in the American Journal of Epidemiology. http://www.physorg.com/news147959925.html Medicine & Health Mon, 08 Dec 2008 11:58:45 EST news147959925 (PhysOrg.com) -- They occur constantly, are largely invisible but affect everything from energy supplies and soil erosion to water pollution. http://www.physorg.com/news147461894.html Space & Earth Tue, 02 Dec 2008 17:38:14 EST news147461894 The phrase "empty nest" can conjure up images of sad and lonely parents sitting at home, twiddling their thumbs, waiting for their children to call or visit. However, a new study, reported in Psychological Science, a journal of the Association for Psychological Science, suggests that an empty nest may have beneficial effects on the parents' marriage. http://www.physorg.com/news147446670.html Medicine & Health Tue, 02 Dec 2008 13:24:30 EST news147446670 "Time poor" single mothers come surprisingly close in the number of hours they spend caring for their children compared to married mothers, and the difference is explained almost entirely by socio-economic factors and the kind of jobs they hold, say University of Maryland sociologists in a new study. The researchers conclude public policy focuses too heavily on the mother's marital status. http://www.physorg.com/news146837874.html Other Sciences Tue, 25 Nov 2008 12:17:54 EST news146837874 A new study in the Journal of Marriage and Family examined differences in the amount and type of time that single, cohabiting, and married mothers spend with their children. Cohabiting and married mothers spend similar amounts of time caring for their children. Results show that single mothers spend less time with their children than married mothers. However, if single mothers had the same level of education and employment as married mothers, they would spend the same amount of time with their children. http://www.physorg.com/news146747279.html Medicine & Health Mon, 24 Nov 2008 11:07:59 EST news146747279 It doesn't tick, it doesn't have hands, and it doesn't tell you what time of day it is. But a molecular clock does tell time -- on an epoch scale. The molecular clock, explained S. Blair Hedges, is a tool used to calculate the timing of evolutionary events. http://www.physorg.com/news146418967.html Biology Thu, 20 Nov 2008 15:56:07 EST news146418967 More than a century ago, the development of the earliest motion picture technology made what had been previously thought "magical" a reality: capturing and recreating the movement and dynamism of the world around us. A breakthrough technology based on new concepts has now accomplished a similar feat, but on an atomic scale--by allowing, for the first time, the real-time, real-space visualization of fleeting changes in the structure and shape of matter barely a billionth of a meter in size. http://www.physorg.com/news146409320.html Nanotechnology Thu, 20 Nov 2008 13:15:20 EST news146409320 Combine the aphorisms that "practice makes perfect" and "timing is everything" into one and you might get something resembling findings published in this month's issue of Psychological Science. Proper spacing of lessons, the researchers report, can dramatically enhance learning. And larger gaps between study sessions result in better recall of facts. http://www.physorg.com/news146234214.html Medicine & Health Tue, 18 Nov 2008 12:36:54 EST news146234214 A new study by sociologists at the University of Maryland concludes that unhappy people watch more TV, while people who describe themselves as very happy spend more time reading and socializing. The study appears in the December issue of the journal Social Indicators Research. http://www.physorg.com/news145901411.html Other Sciences Fri, 14 Nov 2008 16:10:11 EST news145901411 Many children love sending and receiving text messages through their cell phones - sometimes to the great annoyance of their parents. http://www.physorg.com/news145628403.html Medicine & Health Tue, 11 Nov 2008 12:20:03 EST news145628403