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Tag: "formed" at biology news

Scientists and engineers apply nature's design to human problems

...rs at the Georgia Institute of Technology recently formed the Center for Biologically Inspired Design (CBID)... present the mission and activities of CBID, which formed this past summer with a three-year internal seed grant. The idea for the center began with discussio...

On a wing and a prayer - Alaska researchers seek clues to bird flu

...ologists from across Alaska have joined forces and formed the University of Alaska Program on the Biology and Epidemiology of Avian Influenza in Alaska to study migratory birds in Alaska and determine how many are infected and how strains of influenza virus jump from one species to another. Wild birds are ...

NCAR analysis shows widespread pollution from 2004 wildfires

...ion to damaging plants and influencing climate, is formed from reactions involving atmospheric pollutants, including carbon monoxide, in the presence of sunlight. Both pollutants are monitored by the Environmental Protection Agency. However, scientists have been unable to precisely determine regional emissi...

K-State professors discover enzyme responsible for creation of a beetle's hard shell

...en the laccase-2 gene was not expressed, the newly formed cuticle remained soft and white instead of becoming hard and dark-colored. These results indicated which protein was responsible for the hard shell's formation, Kanost said. The identification of laccase-2 as the catalyst for cuticle tanning opens u...

Displaced songbirds navigate in the high Arctic

...t the birds may in fact use declination--the angle formed between the magnetic North Pole and geographic north--to obtain longitudinal information. Geographic north can be determined by star positions late in the summer, as night returns to the high Arctic. ...

Researchers learn how blood vessel cells cope with their pressure-packed job

... axis in the miniature workout chambers, the cells formed stress fibers perpendicular to the direction of stretch. "This orientation of actin fibers can be thought of as a feedback control in which the external stresses imposed on the cell are felt internally to a much reduced degree," said Chien. Post-doc...

Tropical dry forests receive international recognition

.... Sanchez-Azofeifa is the director of the newly formed TROPI-DRY, a research network on tropical dry forests housed in the Faculty of Science. The Inter American Institute for Global Change Research has just funded the network to the tune of US$2.7 million for the U of A and all the contributing Latin Am...

Einstein scientists discover how protein crucial for motion is synthesised at the right place in the cell

...sions. The team's previous work showed how newly formed actin messenger RNA molecules find their way to the cell's periphery: A protein called ZBP1 binds to the messenger RNA and "escorts" it out of the fibroblast nucleus and into the cytoplasm. On reaching the cell's periphery, the messenger RNA is trans...

Sickle cell disease corrected in human models using stem cell-based gene therapy

...rom SCD patients, researchers found that the newly formed red blood cells made normal hemoglobin and suppressed production of the sickle shaped hemoglobin typical of the disease. "Sickle cell disease can only be cured by transplanting healthy blood-forming stem cells from another individual, but this optio...

New neurons take baby steps in the adult brain

...r injury. In none of these systems are new neurons formed or integrated to any great extent naturally. ...

DNA self-assembly used to mass-produce patterned nanostructures

...puzzle pieces that fit together as a 4x4 grid that formed a puzzle spelling the letter "D." Because each piece would only match up with its predetermined neighbors, the scientists could mix together a trillion of each type of tile in one batch to generate a trillion 4x4 grids. Coming up with the specificat...

Role of microRNA identified in thyroid cancer

...ith the three that showed dramatic overexpression, formed a "signature" that clearly predicted the presence of malignant tissue. "We also discovered miR-221 expression in all of the apparently normal tissue of the patients with PTC, but it was significantly overexpressed in a subset of three of the sample...

Ancient trans-Atlantic swarm brought locusts to the New World

... their brethren died and landed in the ocean, they formed huge floating mats of dead locusts," says Lovejoy. "The other locusts would land on these mats, rest and feed on the dead bodies, then take off and keep flying." Another possibility is that among the millions of swarming locusts were a few exceptiona...

Scientists use stem cells to grow cartilage

...removed the scaffold, the cells were found to have formed new cartilage, showing they can be successfully transplanted in living tissue. The scientists also believe this technique could be used in cosmetic and reconstructive surgery. When removing head and neck cancers, surgeons often have to cut away par...

Yale participates in global human genome initiative

...e of top international biomedical research centers formed to speed scientific and medical discoveries that target genes of the entire human genome. The initiative is sponsored by Dharmacon, Inc. , manufacturer of the first complete human genome siRNA library, or compilation of short, interfering ribonuclei...

New understanding of regeneration gained by Forsyth scientists

...cells at the posterior end became re-specified and formed a normal head, complete with brain, eyes, etc.. This is an example of a high-level "master" control signal. "If we can learn how to send appropriate signals through gap junctions, we may be able to tell the system to make a complex structure as need...

Discovering the first steps in transcription-coupled repair

...ription carried out in vitro, XPG and CSB together formed a large, stable complex with the polymerase. XPG's function during damage removal is to cut the damage-containing DNA strand on one side of the lesion, as part of a complex cut-and patch process. But when the damage causes stalled transcription this...

Effective, safe anthrax vaccine can be grown in tobacco plants

...fe Sciences, began teaching at UCF in 1998. He has formed a biotechnology company called Chlorogen to apply his work in chloroplast genetic engineering. In 2004, he won UCF's Pegasus Professor Award, the top honor given to a faculty member who excels in teaching, research and service. Last year, he also bec...

Researchers make long DNA 'wires' for future medical and electronic devices

... and stamp them onto glass chips. Other labs have formed very simple structures with DNA, and those are now used in devices for gene testing and medical diagnostics. But Lee and Guan are the first to coax strands of DNA into structures that are at once so orderly and so complex that they resemble stitches ...

Penn researchers study the use of ultrasound for treatment of cancer

...sound because we observed that some of these newly formed vessels created by tumors are very weak in nature, and if you turn on low-intensity ultrasound vibrations you can disrupt the blood flow through these vessels," explained Andrew Wood, DVSc, PhD, a co-investigator of the study and based in the Univers...

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