Tag: "reconstruct" at biology news

NIH awards new $14.5 million, five-year grant to the Scripps Research Institute

...ased on the pattern of diffraction, scientists can reconstruct the shape of the original molecule. NMR refers to the ability of atomic nuclei to reorient in a magnetic field when exposed to radiation of a particular "resonant" frequency in the radio band. An NMR spectrometer will scan a broad range of radio f...

Of lice and men

...each other. Genes of modern lice also were used to reconstruct their population histories over time. The researchers found the family tree of the lice closely mirrors the previously published family tree of humans and their primate ancestors. That was consistent with the well-known phenomenon that any single...

Drought in the West linked to warmer temperatures

...ded. The study's authors used tree ring records to reconstruct evidence of drought, and also looked at a number of independent drought indicators ranging from elevated charcoal in lake sediments to sand dune activation records. The team then used published climate model studies to explore mechanisms that link wa...

New program examines stem cells' potential to repair, replace damaged tissue

...we are particularly interested in is being able to reconstruct people with facial cancer. Oral facial cancer is one of the most disfiguring diseases you can think of," Dr. Schuster says of the cancer that often is found by dentists and can be very deadly if not treated aggressively. Dental faculty, such as Dr....

Not finding life? Dig deeper.

...but rather as an attempt to peer into the past and reconstruct the history of the region's plant communities. Betancourt and Quade, a UA professor of geosciences, have been conducting research in the Atacama for the past seven years. Some parts of the Atacama have vegetation, but the absolute desert of the At...

New bulls may revive the Texas state Bison Herd

...nology that can be used to preserve, conserve, and reconstruct many other wildlife species populations." Two scientific articles explaining the details of this study in the Journal of Mammalogy and in Ecological Modelling were published this month....

Researchers reconstruct parts of the genome of a common mammalian ancestor

...nds implausible. But there's enough information to reconstruct the ancestral genome on the basis of mammals that live today. We just need to sequence the genomes of these living mammals." The reconstructed ancestral genome will offer an invaluable vantage point from which to watch evolution at work. ...

NJIT physicists expect new super lens to reveal first light by early 2006

...ual about the new telescope will be its ability to reconstruct and sharpen in real time the blurry images of the sun that telescopes now provide. "Sharpening these images will be a remarkable achievement because now no observatory does this and people need this information," said Goode. "After all, if you want t...

Computer analysis shows scientists could reconstruct the genome of the mammalian common ancestor

...s now demonstrated that computers could be used to reconstruct with 98 percent accuracy the DNA of a creature tha...brosis gene itself. "Overall, we think that we can reconstruct the DNA sequences of the ancestral genome with an accuracy of more than 98 percent," Haussler said. ...

A complex agricultural society in Uruguay's La Plata basin, 4,800-4,200 years ago

... extracted a sediment core from nearby wetlands to reconstruct what the environment was like when this farming society arose. Combined analyses of preserved pollen and phytoliths indicated that, as in other regions of the world, the mid-Holocene was characterized by significant climatic and ecological changes as...

UCSD researchers derive lessons about human evolution from chicken genome

...cing the chicken genome provides an opportunity to reconstruct the architecture of the ancestral mammalian genome by using chicken as an outgroup." At roughly one billion 'letters', or DNA base pairs the chicken genome is only one-third the size of the human genome, although at 20,000 to 23,000 genes, the chick...

Ecologists see the primeval wood for the trees

... of years old, preserved in lakes and peat bogs to reconstruct primeval forest. But the analysis is open to interpretation, as Dr Mitchell explains: "As every hay fever sufferer knows, pollen blows about in the wind and this mixing of pollen from different sources places some imprecision on our reconstructions. ...

Powerful X-ray beams at Argonne, new electronic flight simulator

... combining the technologies, the researchers could reconstruct a "movie" of the molecular changes in the powerful muscles as they lengthen and shorten to drive the wings back and forth 200 times each second. These experiments uncovered previously unsuspected interactions of various proteins as the muscles stret...

Harvard scientists discover how the venus flytrap snaps

...rd stereo images of the process, they were able to reconstruct the geometry of the leaf. Finally, a simple mathematical model provided them with a way to understand the quantitative and qualitative aspects of snapping such as when the plant snaps, how long it takes before it goes into action once stimulated, and...

Scientists document complex genomic events leading to the birth of new genes

...the RanBP2 and GCC2 genes, Bork's team was able to reconstruct the genomic rearrangements leading to the formation of the ancestral RGP locus. These events included a combination of duplication, inversion, partial deletion, and domain acquisition, and this was followed by a series of duplications that gave rise...

Three bacterial genomes found lurking inside recently sequenced fruit fly genomes

... Wolbachia DNA in three species. They were able to reconstruct 95 percent (1,440,650 base pairs) of the genome of one new species from D. ananassae, which they called Wolbachia wAna. Using the same technique, they identified Wolbachia wSim in the genome of D. simulans and Wolbachia wMoj in the genome of D. mojav...

Fossil records show biodiversity comes and goes

...d by Sepkoski," Muller said. "We are the first to reconstruct diversity from the final version of Sepkoski's Compendium, and the first to use the 2004 geochronology time scale. In a sense, our work has verified the new time scale." Muller and Rohde have been working on this study for nearly two years, and firs...

Microarrays as phenotype

...s in the pathway," said Shaulsky. "We were able to reconstruct the pathway from the microarray data. This means the microarray provides a good phenotype that is quantitative. We can prove that gene A comes before gene B and give mathematical support for these findings." "This is a proof of principle that we set ...

Major advance made on DNA structure

...tists used X-ray examination of crystalline DNA to reconstruct exactly what the DNA looks like at the atomic level. By determining 63 of the 64 possible DNA sequences, they were able to ultimately determine the physical structure of the underlying DNA for all different types of sequences. Another important part ...

University of Chicago researchers reveal secrets of snake flight

...nized recordings of two video cameras to digitally reconstruct the trajectories, speed and body postures of Chrysopelea paradisi, or paradise tree snake, and Chrysopelea ornata, golden tree snake. In this study, Socha, who also is a biologist at Argonne National Laboratory, found that paradise tree snakes are tr...

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(Date:5/22/2013)... potential environmental and human health effects from disposal ... has led scientists to recommend stronger government policies ... (Li-ion) battery materials. That,s the conclusion of a ... Science & Technology . , Oladele A. Ogunseitan ... become mainstays for powering everything from smart phones ...
(Date:5/22/2013)... on how climate change will affect interactions between species ... Journal of Animal Ecology . This knowledge, they say, ... of how species are likely to be impacted by ... recognition among biologists that climate change is affecting how ... going to have very important consequences for the stability ...
(Date:5/22/2013)... May 22, 2013. Plastic additives known as phthalates ... everywhere: They turn up in flooring, plastic cups, ... the Centers for Disease Control and Preventionthe bodies ... have come under increasing scrutiny. A growing collection ... can leech from packaging and mix with food) ...
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