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Tag: "gives" at biology news

Leave it to salmon to leave no stone unturned

...utlines a conceptual framework he's developed that gives ecologists a way to formulate when the abundance of animals and their activities ?be they spawning salmon or some other kind of animal ?make them impossible to ignore as ecosystem engineers. "One specific application to stream restoration in the Pac...

Creation of antibiotic in test tube holds promise for better antibiotics

...d the structure of the enzyme that makes nisin and gives it its unique biological power. The work -- published in the March 10 issue of Science -- sheds light on the almost magical manner in which nisin is made in nature and moves researchers closer to producing new antibiotics that would preclude the dev...

Paleontologists learn how not to become a fossil

...ey Harper Professor in Geophysical Sciences. "This gives us some strategies for how to zero in on the most reliable data," she said. The PNAS co-authors focused on bivalves (clams, scallops, oysters, cockles and their kin), because they serve paleontologists the way geneticists use mice or fruit flies as ...

UF scientists trace origin of shark's electric sense

...ry powers to the same type of embryonic cells that gives rise to many head and facial features in humans. ...ple trying to reconstruct vertebrate evolution. It gives us further indication of how all of the various sensory systems come on line." But the idea that th...

Mice with glowing hearts shed light on how hearts develop

... green light every time they beat. The development gives researchers insights into how hearts develop in li...le on the bottom. A delay in beats between the two gives the atrium time to contract and push blood through the heart, but the mechanism that controls that s...

BioMed Central launches Biology Direct

...al peer-review system." This novel review process gives the author the opportunity to discuss points raised directly with the reviewers, and to revise their manuscript as much or as little as they wish, according to the suggestions or criticisms of the reviewers. Ultimately, reviewers can express reservat...

Scientists identify molecular structure of key viral protein

...ported earlier in 2005 by this same research team, gives scientists a complete picture of how the paramyxovirus F protein works to infect the cell. The F protein belongs to a group of fusion proteins (class I) that exist in two states: the metastable or pre-fusion state and the post-fusion state. This is...

FDA approves first medical device using rutgers biomaterial

...ng a Rutgers bioresorbable technology. The polymer gives the surgical mesh improved handling characteristics that facilitate precise placement during the surgical repair and leave less implant material following the resorption of the coating. Hernias occur when musculature fails and one part of the body ...

Unraveling the viral mechanism

...teria itself. The shape of these "tail" structures gives clues about how the virus or phage and cell interact. Then as Chiu and Jiang used the computer visualization tool to strip away the surface shell entirely, they saw the concentric coil of DNA underneath. They also identified a protein "hub" through ...

Inside rocks, implications for finding life on Mars

... this (confocal microscopy and Raman spectroscopy) gives it to you. You see the cells in the confocal microscopy, and the Raman spectroscopy gives you the chemistry. "We can look underneath the fossil, see it from the top, from the sides, and rot...

A case of mistaken molecular identity

...ve trouble seeing at night," said Levin. "And this gives us additional motivation to improve conditions for people living in areas where Chagas disease is common." Silvia Matsumoto, a physician from the Dr. Teodoro Alvarez Hospital in Buenos Aires and first author of the paper, launched the investigation ...

Study fishes out new role for prostaglandins

... different tissue precursors inside the embryo and gives them a proper shape." But little is known about the chemical signals that cause these cells to move. Previous studies in mice and zebrafish suggested that prostaglandins were important in development. Mice lacking an enzyme that synthesizes prostagl...

Weighting cancer drugs to make them hit tumors harder

...se. "Artificially increasing the weight of a drug gives us a means to increase the amount of drug going to the tumor while reducing toxicity to the rest of the body," said Fan Yuan, Ph.D., co-author on the paper and an associate professor of biomedical engineering at Duke. "We can adjust the weight higher...

Researchers identify genes in fruitflies that may shed light on human cancer spread

...ified five of the genes mutated in those flies and gives the researchers a starting point for more detailed analysis of how those genes are involved in cell migration. Wang has begun to study some of these genes to further dissect their function. The researchers also hope to perform more whole genome analy...

Cincinnati surgeons report new treatment for often-fatal injury

...ut applying pressure to damaged area. "Our method gives emergency surgeons a reliable way to repair difficult injuries with readily accessible materials," Dr. Giglia says. "More people can be treated--and potentially saved--with these minimally invasive techniques." Standard "open" treatment for this typ...

Gene discovery may shed light on kidney disease

...of Philadelphia have identified a second gene that gives rise to Alagille syndrome, a genetic developmental disease that affects multiple organs. The Children's Hospital team previously discovered the first gene associated with this disease. The researchers found that mutations in the NOTCH2 gene were li...

Ritalin packs punch by elevating norepinephrine, suppressing nerve signal transmissions

...f what the drug is doing at the cellular level and gives us a springboard to other studies," Waterhouse said. "One question now is, how does the individual's perception of what is an important stimulus factor into the equation?" Researchers in this area keep in touch and share their results, Waterhouse sa...

Brittle prions are more infectious

...ine how the molecular structure of a prion protein gives rise to its physical properties. ...

UGA study explains peaks and troughs of dengue epidemics

...l Proceedings of the National Academy of Sciences, gives researchers a framework that can be used to create models that predict dengue outbreaks in both space and time. "It's a framework that highlights the key elements you need to take into account while developing a forecasting model," Wearing said. "B...

Chocolate, wine, spicy foods may be OK for heartburn, Stanford study finds

...If a patient comes in and states, 'Red wine really gives me terrible heartburn,' then it may be reasonable to say, 'Well, you could avoid it, or you could take a medication before you drink some red wine,'" she said. According to the ACG, more than 60 million Americans experience heartburn at least once a...

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