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Tag: "marks" at biology news

Far more than a meteor killed dinos

...strial iridium layer found in rocks worldwide that marks the impact that finally ended the Age of Reptiles. "The Chicxulub impact could not have caused the mass extinction," says Princeton University paleontologist Gerta Keller, "because this impact predates the mass extinction and apparently didn't cau...

'Fruit fly dating game' provides clues to our reproductive prowess

...strial iridium layer found in rocks worldwide that marks the impact that finally ended the Age of Reptiles. "The Chicxulub impact could not have caused the mass extinction," says Princeton University paleontologist Gerta Keller, "because this impact predates the mass extinction and apparently didn't cau...

Researchers use multiphoton microscopy to watch chromosomes in action

...chers across the biological sciences. Webb says it marks the success of an interdisciplinary trend that offers new potential for researchers in a variety of fields. "Interaction between the physical sciences and the life sciences is very powerful," said Webb. "And it's becoming more powerful as a tool for...

Serengeti patrols cut poaching of buffalo, elephants, rhinos

...ffective in protected areas," he says. The work marks the first time anyone has been able to reconstruct a history of poaching going back as far as 50 years, says Tom Hobbs, professor of ecology at Colorado State University and who is not affiliated with the work being published in Science. "The Hilb...

Too mellow for our predatory world

...f the National Park keep finding animals with bite marks from dogs. Although these wounds are not fatal in themselves, they often lead to secondary infections which eventually kill the animals. It appears that while marine iguanas are capable of learning to recognise predators they are unable to efficien...

Fish species plays surprise role in aiding coral reef recovery

In a study that marks progress in understanding the basis of coral reef recovery, researchers have revealed the critical importance of a rare batfish, Platax pinnatus, in promoting the return to health of a disturbed coral reef overgrown with algae. The findings bring to ...

World's smallest cancer detection device

...anobiotechnology and nanomedicine. "This NCI grant marks a true milestone for this partnership, which combines the unique expertise and resources of both institutions to apply nanoscale principles to detect diseases and develop treatments for them," says Ira M. Millstein, chairman of the Einstein Board of ...

MIT material stops bleeding in seconds

... 10 at http://www.nanomedjournal.com/inpress . It marks the first time that nanotechnology has been used to achieve complete hemostasis, the process of halting bleeding from a damaged blood vessel. Doctors currently have few effective methods to stop bleeding without causing other damage. More than 57 m...

Study illuminates how the plague bacteria causes disease

...vaders, the researchers explained. The discovery marks the second way in which this protein, called YpkA, compromises the immune system. Earlier studies suggested that another portion of YpkA--which may have been derived from a mammalian enzyme and later co-opted by Yersinia--has activity that also influ...

An AIDS-related virus tricks cells to become tumors, new Penn study finds

...tly named ubiquitin binds to cellular proteins and marks them for degradation. This process can be likened to putting out the garbage for disposal. Ubiquitylation and degradation involve a complex set of proteins in addition to ubiquitin. "We found that the viral LANA has an amino acid motif that mimi...

Science researchers genetically transform immune cells into tumor fighters

...egression in humans," Rosenberg says. "This work marks an important next step in harnessing the power of our immune systems to fight cancer. The publication of this paper should help highlight the significant work to a broad spectrum of people, including patients, clinicians and those involved in basic r...

Living view in animals shows how cells decide to make proteins

...in cells and tissues in test tubes, but this study marks its first successful visualization in a living mammal, said senior investigator Mariano Garcia-Blanco, M.D., Ph.D., a professor of molecular genetics and microbiology. "We were able to watch alternative splicing as it occurred in different tissues...

Scientists reveal structure of gateways to gene control

...hings," Pugh explains. The paper by Pugh's team marks the leading edge of a new wave of anticipated discoveries about gene regulation, made possible by recently developed laboratory equipment for high-volume, or massively parallel, DNA sequencing. "Traditional DNA sequencing methods processed one DNA s...

Liposuctioned fat stem cells to repair bodies

... of Oslo in Norway has identified certain chemical marks that allow him to predict which, among the hundred...A and its surrounding histone proteins. Epigenetic marks contribute to switching genes on and off, and stem cells rely on them heavily as they divide and mat...

Birds found to plan for the future

... and Biological Sciences Research Council (BBSRC), marks a step forward in our understanding of animal psychology and cognition. This project was also supported with a Medical Research Council (MRC) Cooperative Grant....

HIV protein enlisted to help kill cancer cells

...the treatment. Hawkins asserts that this success marks the beginning of a very promising new approach to cancer therapy. "This is the tip of the iceberg," he says. "Now that we've proven we can do this, we've started creating a battery of proteins that can push cancer cells to die." Hawkins says he thi...

Study to explore using magnets to correct 'sunken chest'

... bone, cartilage and chest wall. The procedure marks one of the first times magnets have been embedded inside the body to treat a health condition, according to Michael Harrison, MD, professor of surgery and pediatrics emeritus at UCSF and lead investigator of the study. "We needed to apply a force...

A rarity among arachnids, whip spiders have a sociable family life

...urnal of Arachnology and Natural History magazine, marks the first time social behavior has been reported in amblypygids. "This was the best example I had ever seen of friendly behavior in an arachnid," said Linda Rayor, senior research associate in entomology and the lead author of both articles. Rayor ...

Bacteria control how infectious they become, study finds

...ect. The researchers say that this study likely marks the first successful attempt by a laboratory to determine the structure of RfaH. They used special X-ray techniques to study and describe RfaH proteins that they had extracted from E. coli. They found that while about two-thirds of RfaH's structur...

LIAI completes world's most comprehensive analysis on influenza virus data

...ible spread of the H5N1 avian flu. "The database marks the first time that all known antibody and T cell epitope information has been compiled in one place," said Sette, noting the searchable online database is freely available to scientists around the globe. "It gives researchers ways of sharing knowle...

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