Ants hold the key to traffic chaosJanuary 29, 2003Drivers wishing to avoid traffic jams could learn from the behaviour of army ants, according to new research by biologists at the University of Bristol. The study, carried out by Professor Nigel Franks, found similarities between the problems encountered by New World army ants as they migrate between nest sites and the thousands of drivers who commute to work daily in British cities. While commuting drivers tend to want to beat jams by cutting in and trying to take short-cuts, the ants keep constant speed, stay in their lanes and, essentially, act unselfishly. The New World army ant (Eciton burchelli) stages huge swarm raids with up to 200,000 virtually blind foragers forming trail systems up to 20m wide and 100m long. These massive raids are severely time-constrained, beginning at dawn and ending at dusk. However, the ants have developed a simple yet highly effective way of ensuring they don’t get stuck in a traffic jam. They create trails of pheromones which act as a guide to other ants and ensure the trail continues at a fast pace in a steady stream. Professor Franks said: “The ants always act for the good of the whole rather than the individual and are never unpredictable. Selfish humans clearly have a lot to learn from the ants’ ability to arrange smooth traffic flows.” Bristol, University of |
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| Related AIDS Current Events and AIDS News Articles Multiple health concerns surface as winter, vitamin D deficiences arrive A string of recent discoveries about the multiple health benefits of vitamin D has renewed interest in this multi-purpose nutrient, increased awareness of the huge numbers of people who are deficient in it, spurred research and even led to an appreciation of it as "nature's antibiotic." AIDS research reveals a lack of family-planning programs in Uganda University of Alberta graduate student Jennifer Heys wants to make her message clear: there needs to be more education in Ugandan communities about contraception. Many pregnant women avoid HIV screening in Africa 'Prevention is the best cure' is a common expression, but what happens if preventative measures are not used? A large proportion of pregnant Ugandan women are going out of their way not to be HIV tested, increasing the risk of mother-to-child transmission. An atomic-level look at an HIV accomplice Since the discovery in 2007 that a component of human semen called SEVI boosts infectivity of the virus that causes AIDS, researchers have been trying to learn more about SEVI and how it works, in hopes of thwarting its infection-promoting activity. UAB Researchers Discover Antibody Receptor Identity, Propose Renaming Immune-System Gene Researchers at the University of Alabama at Birmingham (UAB) have uncovered the genetic identity of a cellular receptor for the immune system's first-response antibody, a discovery that sheds new light on infection control and immune disorders. UCLA study shows brain's ability to reorganize Visually impaired people appear to be fearless, navigating busy sidewalks and crosswalks, safely finding their way using nothing more than a cane as a guide. Research calls for better assessment of tests for tuberculosis, HIV/AIDS and malaria A rapid and accurate diagnosis is the first step towards treatment in the fight against infectious disease. Prioritizing low-cost, simple health measures would save 2.5 million child lives a year Almost a third of the children under age five who die each year could be saved if governments rebalance health spending to ensure low-cost, simple interventions such as safe water and hygiene, bed nets and basic maternal and newborn care, leading aid agency World Vision said today. Currently, 8.8 million children a year die before age five, most of preventable causes. No-entry zones for AIDS virus The AIDS virus inserts its genetic material into the genome of the infected cell. Scientists of the German Cancer Research Center have now shown for the first time that the virus almost entirely spares particular sites in the human genetic material in this process. This finding may be useful for developing new, specific AIDS drugs. Hoping for a fluorescent basket case Although recent advances have raised hopes that a protective vaccine can be developed, acquired immunodeficiency syndrome (AIDS) remains a major public health problem. More AIDS Current Events and AIDS News Articles |
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