Tag: "material" at biology news
Three-Day Treatment Cures Decades-Old Case Of Malaria
...p used a novel test to greatly amplify the genetic material
of malarial ribosomes -- the tiny protein-making factories in all living things. Using the ribosomal RNA as a guide, he made largequantities of the genes that code for ribosomal RNA, then applied genetic "probes" that sought out and highlighted only...
New Chemical Processing Technique Being Studied At UW May Hold Key To CleaningUp Hanford, Reducing Industrial Waste
...g, for example, a negativel y-charged ion exchange material
acts like a sponge for positively-charged calcium ... hard water. Eventually, however, the ion exchange material
becomes filled with calcium and must be regenerated by a series of chemicaltreatments. A concentr at...
Carnegie Mellon Researchers Say Direct Instruction, Rather Than "Discovery Learning" Is Best Way To Teach Process Skills In Science
relates to the session "How Scientists Really Think: Beyond theMyths of Discovery" PITTSBURGH--Direct instruction using the Control of Variables Strategy,rather than discovery learning, may be the best way to teach young childrenabout...
Scientists Sift Through Trash In Search Of Perfect Landfill
...posed after only two years. Newspaper was the only material
that showed little change: Only 17.4 percentdecomp...ate, butthe practice virtually guarantees that the material
stays around indefinitely.Ham believes there's an environmentally better alternative, that would con...
Jefferson Researchers First To Create Genetically Engineered Mouse To Study Photoaging
...zed mouse eggs with humanelastin promoter DNA, the material
which produces skin fibers that promoteelasticity, has enabled Jefferson researchers to learn more about how theultraviolet light rays UVA and UVB cause skin aging and wrinkling. Study results have also led to new ideas for how sunscreen fo...
Hormone Control Of Rare Leukemia Sheds Light On Molecular Basis Of Cancer
...ing cellulardivision, resulting in a new gene with material
from each. The protein encodedby the new gene is called a fusion protein. Chromosomal translocations figure inmany types of cancers. In 95 percent of APL cases, the fusion protein is a product of a genecalled PML on chromosome 15 and the...
DNA Used To Create Self Assembling Conducting Wire: Breakthrough Will Lead To Next Leap In Emerging Nanoelectronics
...anoparticles ofsemiconductors and other electronic material
into crystal-like lattices andother orderly structures. But nobody until now has made a working electroniccomponent. "Our wire actually passes a current. This is the first demonstration ofself assembly of any functioning electronic component...
Study Shows: Just Say NO To Bone Loss
...heerosion/deposition process of a river bank where material
is removed and thendeposited once again. The osteoblasts giveth; the osteoclasts taketh away.Osteoclasts, like NO, are dual-natured. While they quite literally eat holesin bones, in their absence, bone marrow cavities and nerve canals don't form,l...
Nitrate Reductase: A Magical Enzyme?
...ll providescientists with the large amounts of the material
they need for experiments. "It's been a step-by-step process," explains Campbell. "When we firststarted recombinant expression of nitrate reductase, we couldn't produce anentire enzyme--now we can." The Michigan Tech Professor has worked wit...
The Bug Stops Here
...se this technique uses genomic DNA as the starting material
-- DNA that can beprepared directly from a clinical sample such as saliva or dental plaque. "Up toa half of the microorganisms present in the oral cavity can't be grown and weknow nothing about them," says Paster. But the two researchers are poised t...
RNA-Dendritic Cell Combo Shows Promise As A Universal Cancer Vaccine
... few cancercells from which to distill the genetic material
RNA. Mixed together, the tumorRNA produces everything the immune system needs to launch an attack on thecancer. Laboratory proof of the cancer vaccine concept is published in the Aprilissue of Nature Biotechnology. The research, supported by ...
Liquid Crystals Light Up Simple Chemical Test
...hold concentration -- itcan say whether the target material
is there or not. But it can't yet tellus how much of the material
is there," he said. His current idea is to construct another landscape. This one would consistof a ...
Excavations In Prehistoric Chinese Cave Uncover Unusual Collections Of Large Mammals
...ear the Dadong people were makingchoices about the material
that they used for their stone tools.When they could, they used the best material. That's a veryimportant point about complex behaviors. They're not just pickingup anything and making do." Additional analysis of the animal bones will be done by Wilso...
Novel Method Of Gene Replacement Reported By University Of Washington Researchers
... vehicles to "infect" andinsert the proper genetic material
into cell nuclei that have genes withundesirable mutations. While the proper genetic material
is inserted, it goes torandom locations on the chromosome, and the faulty genetic material
How Did Life Begin? Biochemical Evolution On Chemical Surfaces
...polymers. "For many years, I've wondered if such a material
could occur in nature," saidSmith. If small organic molecules, like amino acids, could accumulate in thepores of a zeolite, the mineral surface could have provided the catalyticframework for assembling them into polymers and protecting them fromdest...
Human Metabolite Of Taxol Synthesized In The Laboratory
... only gives about a 15 percent yield, the starting material
can berecovered and reused, so the yield based on unrecovered starting material
isabout 85 percent." Yuan will share the process for synthesizing 6a -hydroxypaclitaxel in a...
Microchip Sensor Detects Bacteria
...e then stamped on the surface of silicon, the same material
used in computer chips, providing a sticky surface for bacteria to cling to. To detect E. coli on the sensor, the silicon chip was illuminated with a laser, and the laser light was diffracted at a particular angle. The more bacteria bou...
Retinoic Acid Used In Cancer Treatment
...romoting effects of oncogenes, the mutated genetic material
that induces cancer, says Andrew Yen, a professor of pathology and director of one of the Cancer Biology Laboratories in Cornell University's College of Veterinary Medicine. The finding, which to date has been restricted to the test-tube lev...
Purdue Finding May Snuff Out The Sniffles
...f the rhinovirus to unfold and release its genetic material
into the cell. The fact that the virus attaches to a different site than the one used by white blood cells bodes well for developing ways to block the interaction, Bella says. "If scientists could prevent that interaction from occurring, either by a ...
Biochemist Solves Riddle Of Collagen Stability
... improvements don't last, Raines said, because the material
starts breaking down after a few months. Collagen ...ld work much like bone or skin grafting, where new material
replaces the lost or damaged tissue, he said. Some early, experimental studies are also looking at c...
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