Tag: "dirt" at biology news

Gene maps of simpler life forms point the way to human disease gene

... up where they're supposed to be. Cilia clear away dirt and bacteria in the respiratory tract, help sperm swim and help keep fluid flowing into and out of the brain, just to name a few examples." Cilia and basal bodies, the structures that anchor them on the surfaces of cells, are complex. Scientists esti...

Dirt aged hurriedly, elegantly observed

...iting than watching the grass grow? Why, observing dirt age in a hurry, according to a team at the Pacific...ponge up and trap organic contaminants. In nature, dirt is said to age as water-resisting organic compounds accumulate in mineral pores and organic matter o...

Anthrax spores can germinate, grow and reproduce in soil

...ity of Michigan Medical School shows that ordinary dirt can do the job, as well. U-M microbiologist Philip C. Hanna, Ph.D., announced his research findings in a Feb. 14 presentation at the American Association for the Advancement of Science meeting. His results are surprising, because most scientists bel...

Social insects point to non-genetic origins of societies

... simple interactions - one termite puts a piece of dirt there and the other termite comes along and smells that a termite put her piece of dirt there, so she does too, instead of somewhere else. At first it's random and termites are putting th...

Scientists study roundworms for behavior patterns

... simplest organisms. A tiny nematode that lives in dirt and grazes on bacteria, C. elegans is a popular laboratory subject because a scientist can store thousands in a sample dish the size of a hockey puck, easily supplying the numbers necessary for statistically significant experiments. About 1 millimete...

Ion channels allow bacteria to resist stomach acid

... prove deadly to [the bacteria]." Iyer struck pay dirt with his first experiments, which showed that the altered bacteria could not survive when they were exposed to high acidity. According to Miller, previous studies indicated that when bacteria are exposed to a very low pH of about 2, two kinds of XAR ...

Efficient plastic nuggets key to agricultural plastic waste disposal

...s both since mixed plastics burn just fine and the dirt and debris come out with the coal ash anyway." Agricultural plastics, such as mulch films, greenhouse films and pots, flats and silage wraps are universally dirty, and the cost of cleaning them before recycling would be expensive. Also, while mulch ...

Frozen 'lake' beneath Antarctica ideal to test sterile drilling techniques

...ce is most likely permafrost - a frozen mixture of dirt and ice - because the temperature is too low for liquid water. Far from being a disappointment, says a University of California, Berkeley physicist, the permafrost subglacial lake may be ideal for developing and testing sterile drilling techniques ne...

Discovery Channel special watches OSU chimps learn to read

...that are out of reach, deep in dirt mounds. They also use wads of leaves to soak up water to drink. The sponge serves the OSU chimps as a surrogate for the leaves. Boysen's team is teaching the two primates to use their limit...

PNNL science, technology help keep America safe

... bacteria, spores, viruses and their DNA from air, dirt or water samples. The PNNL-developed technology is fully automated so that detectors can analyze samples and monitor for threats without requiring a person to manually prepare the samples. With BEADS sample preparation systems as a front-end techno...

Bacterial communities found to follow water

...face for an hour or so of light exposure until the dirt begins to dry. Then, just as suddenly, they return again to the subsurface, where they begin the long wait for the next rain. The existence of such cryptic communities of microbes has long been known, and it has long been assumed that the organism...

Research highlights from Pacific Northwest National Laboratory

...site by virtually brushing away or digging through dirt to find artifacts. Once artifacts are exposed, the HIT Labs Augmented Reality Toolkit projects them onto a screen where visitors interact with them. Industry could use this technology for human-computer interaction and collaboration, such as nationa...

Ill winds carry toxic dust

...ys ASU geologist William Stefanov. Though the fine dirt that settles into homes across the Phoenix area may look harmless, chronic inhalation of contaminated dust could lead to increased risk for cancer or heavy metal poisoning, leaving Arizona residents to wonder: Do you know where your dust has been? I...

LabNotes -- Research highlights from Pacific Northwest National Laboratory

...ice delivers on-the-spot warnings - Playing in the dirt was a common lab activity for scientists at Pacific Northwest National Laboratory as they created an automated system that purifies soil, as well as air and water samples. Called BEADS, for Biodetection Enabling Analyte Delivery System, it was create...

UC Davis expert identifies oak-tree killer and warns public to use caution

...ers should wash equipment well and should not move dirt from one place to another. Some infected oak trees may be able to be treated and saved, Rizzo said, but property owners should first be sure to have a sick tree diagnosed before beginning any treatment. Rizzo's investigation showed that the culprit ...

Carbon diem: Grants awarded to research that seizes excess carbon dioxide

Like any good housekeeper, sweeping up the dirt and sending it to a landfill keeps the house tidy and clean. Researchers interested in tidying up the earth's atmosphere are devising ways to sweep up excess carbon dioxide -- a potentially problematic greenhouse gas -- and store it out of harm's way...

Road dust: Rural vehicles emit more pollutants than urban ones

...urner explains. Road dust is more than the simple dirt a vehicle stirs up as it moves along the road. Besides dirt from soil, road dust also contains the suspended fine particulate matter created from tail pipe emis...

Jurassic period mammal teeth found; prevailing theories challenged

... it had been collected,"said Wyss. "We put bags of dirt on a truck, and then on a boat. That was threeyears ago. We were incredibly lucky." The scientists chose to search for fossils on the island of Madagascarbecause it separated as an island so long ago. It hasn't been connected toAfrica since t...

Household Fungus Contributes To "Sick Building Syndrome"

... areintroduced along with flood waters or dust and dirt entering a building. Thefungus is most common on the paper covering of sheetrock but can also be foundon wallpaper, ceiling tiles, paper products, carpets with natural fibers, papercovering on insulated pipes, insulation material, on wood, and on gen...

International Genome Team Deciphers Genetic Instructions For A Complete Animal

.... C. elegans, asscientists call them, inhabit the dirt in temperate regions. A handful of soilmay contain thousands of worms, gliding their way through water dropletstrapped between soil particles. Some of its nematode cousins are parasites, butdirt-ranging C. elegans prefer a benign existence among r...

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