Tag: "filter" at biology news

Plankton can run, but can't hide from basking sharks

...ea water through its enormous mouth. It is able to filter up to 2,000 tons of water per hour - the equivalent of an Olympic-sized swimming pool. It is harmless to humans, but has been netted and harpooned for its oil which was burned in lamps and more recently for its fins....

How butterflies fly thousands of miles without getting lost revealed by researchers

...tterflies in a "flight" simulator. When a UV light filter was used in the simulator, the butterflies lost their orientation Further probing revealed a key wiring connection between the light-detecting navigation sensors in the butterfly's eye and its brain clock Thus, it was shown that input from two inte...

The ecological effects of the Chernobyl disaster

...ying dates. The radio nucleotides in the area also filter into the soil, and from there into plants. Animals that consume these plants, including livestock, then take up the radionucleotides. Viktor Dolin (National Academy of Sciences, Kyiv, Ukraine) will discuss a newly described process of environmental s...

New type of rejection blocker protects kidneys after transplant

...rate (GFR) -- a measure of the kidney's ability to filter waste -- as an indicator of how well transplanted kidneys were functioning. The GFR was significantly higher at 12 months for patients receiving both the intensive and less intensive belatacept regimens compared to cyclosporine patients. Another indi...

Sandia researchers to study techniques for arsenic removal from drinking water

...emoval technology that uses granular iron oxide to filter arsenic from water," says Malcolm Siegel, Sandia project manager. "As water is pumped through the system, arsenic sticks to the iron oxide. The Desert Sands MDWCA wants Sandia to compare the performance of the [iron oxide] material they are currently...

Deep-sea exploration beneath Katrina's wake

...is then captured on the sub's video camera using a filter that blocks non-fluorescent light reflected back. Last year, using this technique, the group discovered the world's first fluorescent shark, a previously known species called a chain dogfish whose fluorescence had never been observed. To their disma...

Hidden sponges determine coral reef's nutrient cycle

...ace also means a larger filtering surface. Sponges filter the water. They take up planktonic particles such ...wth of marine plants and other organisms. Sponges filter at a phenomenal rate: if the seawater were to remain stationary, the sponges would have completely p...

Researcher: Toxic flood lifts lid on common urban pollution problem

...the ground, where soil and microorganisms can help filter the contaminants. Planting vegetation and especially trees also creates aesthetically pleasing buffer zones, providing storm water flooding control and other benefits. Finally, cities can use high-tech street sweeping equipment that is very effective...

Studies validating performance of Pall prion reduction technology presented at AABB

...oration, presented results of research testing the filter against sporadic CJD, the most common form of prio...and blood center. The results showed that the new filter was effective in removing infectious scrapie prions from different preparations of red cell concentr...

Pall tells FDA panel about blood filtering technology

... characteristics of the prion reduction technology filter that were used to earn its CE mark in Europe. He ...r presented research results on the ability of the filter to remove all types of prions from red cells including scrapie (a TSE affecting sheep); mouse infect...

NJIT study shows nanoparticles could damage plant life

...ed the study by allowing seeds to germinate on wet filter paper in Petri dishes, after which they added known quantities of nano-sized alumina suspended in water. The control portion of the experiment was treated only with water, and the authors observed the experiment for seven days. During that time, they...

Nutrient pollution causes a long-term effect on Chesapeake Bay ecosystem

...nt due to their secondary effects. These habitats filter nutrients out of the system as well as trap and bind fine sediment particles. They support positive-feedback mechanisms that tend to accelerate Bay restoration once the reversal has been set in motion."...

Picking particles faster than one at a time

...un again -- using a template after segmentation to filter out incompatible shapes -- false positives dropped to a mere 7 percent. Beyond the demonstrated goal of selecting the same particles an expert would select with a low error rate, future refinement of the segmentation algorithm aims higher. By concen...

Research: Snails were overlooked contributors to marsh destruction

...provide nurseries for juvenile fish and shellfish, filter water-borne pollutants and calm storm-driven waves, reducing the threat of hurricane-induced flood and erosion. So scientists and citizens alike watched with alarm as the marshes started dying off from Louisiana to South Carolina beginning in 1999. M...

Surprising killer of southeastern salt marshes: Common sea snails

..., protect coastline from storm-induced floods, and filter fresh water before it flows out to sea. Mark Bertness, chair of the Department of Ecology and Evolutionary Biology at Brown and a co-author of the paper, said a better understanding of the causes of salt marsh loss will point to better ways to protec...

Pall blood filtration technology removes prions that can cause TSEs

... phase of the study found that the prion reduction filter removed 3.7 logs (over 99.9%) of the infectious pr...researchers concluded that the use of this type of filter should reduce the risk of vCJD transmission through blood transfusion. Dr. Coker explains, "Transmi...

Rutgers researchers create tiny chemical cages to enclose drug, pesticide molecules

...so could make pesticides less hazardous to handle, filter toxic substances out of wastewater and regulate the pace of reactions in chemical production. "While the concept of chemical cages is not new, we've created new components and advanced the assembly process to increase the chance that they'll become p...

Researchers evolve a complex genetic trait in the laboratory

...ng a trait, and whether natural selection tends to filter out deleterious mutations in such cases....

Born with a love of speech

... no preferences. "We established that the low-pass filter signals weren't distinguishable to the neonates. The low frequency sounds that we used in our study didn't have enough information for the neonates to tell them apart," says Dr. Vouloumanos of the unpublished results. "From that I conclude tentativel...

Seagrass is in decline worldwide, says UNH researcher

... weather-related erosion. Seagrass is an effective filter of nutrients and particulates, and it is the basis of a detrital food chain that feeds fish and shellfish. When seagrass beds disappear, Short says, the impact is major. A disease outbreak in the 1930s wiped out 90 percent of eelgrass in the North At...

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(Date:5/21/2013)... the past few decades, scientists have developed many devices ... metallic stents. While generally effective, each of these treatments ... A new study from MIT analyzes the potential usefulness ... angioplasty balloons and drug-releasing stents, but may pose fewer ... in the artery for only a brief period, during ...
(Date:5/20/2013)... colistin are also commonly resistant to antimicrobial substances ... study in mBio , the online open-access ... to colistin and host antimicrobials LL-37 and lysozyme, ... could mean that patients with life-threatening multi-drug resistant ... response. Colistin is a last-line drug for treating ...
(Date:5/20/2013)... planning grant will help establish the Center for Advanced ... University of Illinois at Urbana-Champaign and Worcester Polytechnic Institute ... to research in drying moist, porous materials such as ... chemical products; textiles; and biopharmaceuticals," said Hao Feng, a ... nutrition and the Illinois site director. , According to ...
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