News tagged with indicator organism
Transport behavior of E. coli varies depending on manure source
Mar 09, 2009 |
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Escherichia coli is a commonly used indicator organism for detecting the presence of fecal contamination in drinking water supplies. The importance of E. coli as an indicator organism has led to several studies looking at th ...
Search results for indicator organism
How good are tests for E. coli in streams?
Sep 22, 2009 |
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Bacteria commonly used to indicate health risks in recreational waters might not be so reliable after all. Pathogenic E. coli were pervasive in stream-water samples with low concentrations of fecal indicator bacteria.
The Nobel Prize and Pond Scum as a 'Model' Organism
Oct 15, 2009 |
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A man is a man and a mouse is a mouse, but if you talk to a few biomedical scientists about their research, at least one is likely to spring the term “mouse model” on you.
Carbon Nanotubes Compromise the Functions of Certain Protozoa, Study Shows
Nanotechnology / Bio & Medicine
Jun 18, 2008 |
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A new study by researchers from the University of Waterloo in Ontario, Canada, hints that carbon nanotubes may be toxic to microorganisms. When cultures of a certain key protozoan, a single-cell organism, ...
Acidic oceans could aid photosynthesis
May 18, 2009 |
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(PhysOrg.com) -- Groundbreaking Victoria University research shows that ocean acidification may have no negative effect on tropical corals and local sea anemones - in fact it may improve photosynthesis.
Biologists discover bacterial defense mechanism against aggressive oxygen
Nov 20, 2009 |
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Bacteria possess an ingenious mechanism for preventing oxygen from harming the building blocks of the cell. This is the new finding of a team of biologists that includes Joris Messens of VIB, a life sciences research institute ...
Hot microbes cause groundwater cleanup rethink
Sep 11, 2009 |
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(PhysOrg.com) -- CSIRO researchers have discovered that micro-organisms that help break down contaminants under the soil can actually get too hot for their own good.
What is the meaning of 'one'? Evolutionary biologists argue for new meaning of 'organismality'
Nov 09, 2009 |
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Rice University evolutionary biologists David Queller and Joan Strassmann argue in a new paper that high cooperation and low conflict between components, from the genetic level on up, give a living thing its "organismality," ...
Melatonin, a hormone segregated by human body, regulates sleep better than somniferous
Nov 05, 2009 |
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Melatonin, a natural hormone segregated by the own human body, is an excellent sleep regulator expected to replace somniferous, which are much more aggressive, to correct the sleep/wakefulness pace when human biological clock ...
Genetic mutation a strong indicator of age-related hearing loss risk
Oct 06, 2009 |
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Patients who exhibited a certain genetic mutation of anti-oxidant enzymes are three times more likely to develop age-related hearing loss (ARHL), according to new research presented at the 2009 American Academy of Otolaryngology-Head ...
Light used to map effect of neurons on one another
Medicine & Health / Neuroscience
Dec 17, 2009 |
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(PhysOrg.com) -- Scientists at Harvard University have used light and genetic trickery to trace out neurons' ability to excite or inhibit one another, literally shedding new light on the question of how neurons ...
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