Bacteria in Sand - Beachapedia. As explained further in our article on Epidemiological Studies, certain "indicator bacteria" (total coliform, fecal coliform, E. coli and enterococcus) are measured in recreational waters and compared against federal and state standards to determine whether the water is safe to swim in.
At many locations where bacteria levels frequently exceed standards, investigations have been conducted to try to identify and eliminate the pollution source(s) (see article Bacterial Pollution, Tracking the Sources). Outcry as beaches closed over bacteria detection. Bridget Brennan, Phoebe Stewart, Iskhandar Razak Updated Thu 12 May 2011, 4:45pm AEST There has been public outcry about pollution of waters around Darwin Harbour following the closure of two beaches yesterday afternoon after tests revealed high levels of bacteria.
Nightcliff Beach near Chapman Road returned high levels of E. coli, while excessive levels of enterococci were detected at Lee Point Beach. Health Minister Kon Vatskalis says the beaches were closed as soon as water test results were released. Beaches at East Point and the nearby Lake Alexander had already been closed because of high bacteria levels in the water. Kunnen we organen nabootsen op een chip? Chips worden niet alleen meer gebruikt om computers te laten rekenen; wetenschappers bouwen tegenwoordig ook chips waarop ze biologische cellen nauwkeurig kunnen volgen.
Via ragfijne kanaaltjes wisselen die cellen onderling stoffen en signalen uit. Powerful New Lab-on-a-Chip Device Could Redefine Genetic Analysis. 6inShare Scientists at the University of British Columbia have invented a lab-on-a-chip that could reduce the cost of genetic analysis while improving its speed and sensitivity.
Roughly the size of a nine-volt battery, the unit directs fluid carrying cells through tiny tubes and valves, ultimately isolating the cells into separate chambers. Once the cells are separated, their genetic material can be removed and replicated for future study. Standard genetic tests present composite data based on thousands, or even millions, of cells.
'Good' bacteria keep immune system primed to fight future infections. Scientists have long pondered the seeming contradiction that taking broad-spectrum antibiotics over a long period of time can lead to severe secondary bacterial infections.
Now researchers from the University of Pennsylvania School of Medicine may have figured out why. The investigators show that "good" bacteria in the gut keep the immune system primed to more effectively fight infection from invading pathogenic bacteria. Altering the intricate dynamic between resident and foreign bacteria - via antibiotics, for example -- compromises an animal's immune response, specifically, the function of white blood cells called neutrophils. Consumer Information: Newsroom: Safer Home Fact Kit: Where Germs Are Lurking. IBM scientists create rapid disease diagnostic chip (w/ Video) IBM scientists have created a one-step point-of-care-diagnostic test, based on an innovative silicon chip, that requires less sample volume, is significantly faster, portable, easy to use, and can test for many diseases, including one of world's leading causes of death, cardiovascular disease*.
The results are so quick and accurate that a small sample of a patient's serum or blood, could be tested immediately following a heart attack, to enable the doctor to quickly take a course of action to help the patient survive. As reported in Lab on a Chip, December 2009, Volume 9, Issue 23, IBM Research - Zurich scientists Luc Gervais and Emmanuel Delamarche, in collaboration with the University Hospital of Basel in Switzerland, have developed a new diagnostic test that uses capillary forces to analyze tiny samples of serum, or blood, for the presence of disease markers, which are typically proteins that can be detected in people's blood for diagnostic purposes. All in the chip Source: IBM. Sandbox Safety Tips for Children - How to Keep Kids Safe in the Sandbox. Now that summer's here, outdoor games and activities are in full swing.
Even though having the kids "out back" gives you a bit of relief from the "I'm bored's", you must be aware of the potential hazards in the backyard. Our Technical Director blogged about pool safety. I'm here to tell you how to avoid dangers lurking in the sandbox. The National Sanitation Foundation International (NSF) swabbed 26 different public places, and discovered that the playground sandbox contained the highest level of bacteria.
Since little tots love nothing more than to dig, shovel, and wiggle their toes in the sand, here's a few tips to make sure they have fun and don't get sick. If the kids haven't played in the sand since last summer, replace the sand with a fresh batch. Silverline 633897 100mm x 800mm Petrol Auger Bit - Silverline available at Toolbox. An Urban Oasis: Street Signs That Charge Our Gadgets. There’s nothing wrong with the traditional park bench, a place to stretch your legs and catch your breath, except for its wasted potential.
How many of us will sooner cram into a Starbucks than lounge outside because public seats lack the simplest of conveniences: access to electricity (and maybe Wi-Fi)? Street Charge is what design studio PENSA calls an “urban intervention.” It’s a solar-powered rest stop for the New Aesthetic, a place for your phone to sit dedicated to squeezing in a 5-minute email check without killing that last remaining sparks inside your smartphone battery. Think about it: The urban professional doesn’t need gas, Funyuns, ample parking or a patch of grass for their kids to run around like a typical vehicle commuter. The only thing most of them need is to top off is their mobile phone of choice. Quadex - Product - SandPit Powder.