Tag: "extract" at biology news

Nanofabricated 'gel' separates DNA

...section. Finally, the new device makes it easy to extract separated DNA for further analysis: As a band of strands of a particular length arrives at the end of the channel, it can just be drawn off. Extracting samples from an organic gel requires complex chemical separation....

Using a mouse model, reserchers now understand changes occurring in the brain before the onset of Huntington's disease

...ontain probes for thousands of genes. Researchers extract RNA from cells in a tissue sample, label it with a fluorescent dye, and inject it onto a GeneChip. Each bit of RNA sloshes around until it comes in contact with a probe that matches it and grips it tightly. Some of the probes collect a lot of RNA whi...

Potato extract: A new direction for antibiotics

A potato extract may offer us insight into a new strategy for antib...o report the results of their study on this potato extract at the 100th General Meeting of the American Society for Microbiology. "In the past several years m...

How stress maintains population levels

...the bird to stick its head into a hole in order to extract seeds. When the eyes of an infected bird come in contact with the opening, the next bird to feed at that perch can pick up the disease. For this reason, feeders should be cleaned with a solution of 1 part bleach to 10 parts water every two weeks or...

Genetic method has promise for assessing environmental cleanup

...h as benzene, toluene and xylenes. Engineers first extract DNA from contaminated soil samples and then search...quence indicating the enzyme's presence. "When you extract DNA from soil you can get DNA from a billion different microorganisms, and we only want to know abou...

Scientists discover key ingredient in sexual reproduction

... Because sperm and eggs are relatively easy to extract from sea urchins, biologists have been studying these small marine creatures for decades. They have long served as a model for understanding fertilization in other living beings, including people. In fact, the vital role that calcium plays in egg a...

Cheer up

...rse effects. Known as nature's Prozac, the extract of the plant Hypericum perforatum is the second most popular herbal supplement in the US, and in Europe it has long been prescribed by doctors to combat depression. The herb has few side effects--although in strong sunlight it can caus...

New process improves potency, uses of grape seed extracts

...sing carbon dioxide instead of organic solvents to extract many of the antioxidants from grape seeds. The new method produces an extract with greater potency without using toxic chemicals, takes 25 percent less time, and can be fully aut...

Stanford researchers win National Science Foundation grants for information technology research

...sulting models. "These techniques will allow us to extract the most significant statistical patterns from the data, thereby providing a deeper scientific understanding of critical biological phenomena," Koller says. Professor Lambertus Hesselink in Electrical Engineering, Aeronautics and Applied Physics was ...

New IIASA research challenges Kyoto Protocol

...or improve other "biological sinks" that naturally extract carbon from the atmosphere. However, IIASA's research, which uses Russia as a case study, shows that benefits of the biological sinks cannot be accurately measured. Without credible "full carbon accounting" (FCA), countries that elect to balance t...

The fabled myrrh may fight cholesterol

...f an herb long-used in folk medicine. The extract from a tree in the fabled myrrh family is being in...of a study of the dietary supplement gugulipid, an extract from the gummy resin of the thorny mukul myrrh bush of western India that has made its way into Amer...

How much of the world do we really see?

... everything is just that-an impression. In fact we extract a few details and rely on memory, or perhaps even our imagination, for the rest. Others have a more radical interpretation: they say that we see nothing at all, and our belief that we have only to open our eyes to take in the entire visible world is ...

Drugs on tap

... comparable to what other people have been able to extract from the plant itself, says Mason. Raskin thinks the method could be used in combination with another approach he has pioneered for making plants release proteins from their roots (New Scientist, 1 July, p 27)....

Avocados contain potent liver protectants

...to liver protection among humans, how much avocado extract it will take to have a beneficial effect, or how t...turer in Japan. Kagome plans to patent the avocado extract and test it on humans in the near future, the researchers say. More than 8,000 research papers w...

Potent new compound from blue-green algae may help treat, elucidate nerve disorders

... and tested extracts on brine shrimp and fish. One extract proved toxic even in concentrations of parts per billion. The researchers named the as-yet-mysterious compound after the island's Kalki Bay and set to work tracking down its structure. The project proved to be a challenge for the next several yea...

Want to get rid of trash quickly? Just add water, study suggests

... material decomposes, we can extract recyclables from the landfills, then the landfills aren't filling up at as quickly." Christy is currently experimenting with moisture levels in two laboratory-scale wet-tomb bioreacto...

Stowaways from space provide link between impact, biggest extinction in Earth history

...helium can nestle. Becker has developed methods to extract the molecules from rock samples, then sends the fullerenes-which usually form a small blob akin to ear wax-to Poreda for analysis. He and his colleagues in the Rare Gas Laboratory use a sophisticated gas spectrometer to measure different isotopes of ...

Organgutan numbers plummeting worldwide; species may vanish in ten years, study says

...tine use of at least two kinds of feeding tools to extract honey from tree holes and seeds from a woody fruit protected by stinging hairs. The geographical distribution of this tool use implies that it is handed down to generations, similar to what occurs among certain chimpanzee populations. Conservation ...

Preserving Moroccan forests need not endanger Barbary macaques

...urces with cement wells, which makes it easier to extract water for livestock but keeps wildlife from reaching the water). The researchers found that water availability correlated best with bark stripping. The macaques stripped hardly any bark in areas where water was readily available, such as Lake W...

Berkeley chemical engineer wins national award for catalysis research

...oping more efficient catalysts, such as those that extract pollutants from vehicle and power-plant emissions. He will receive the 2001 Award for Creative Research in Heterogeneous Catalysis from the American Chemical Society at its 221st national meeting in San Diego. "A central part of our work involves s...

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