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Tag: "elements" at biology news

Penn Researchers Use Robotic Surgery

...ox. The surgeons were able to manipulate different elements in the voice box with a high degree of dexterity that would be tremendously difficult using conventional instruments. They were also able to suture and tie knots deep in the mannequin's throat with relative ease ?a task exceptionally challenging with...

Chimp genome reveals a retroviral invasion

... as junk DNA -- consists of retroelements: genomic elements that are transcribed into RNA, reverse-transcribed...likely scenarios. And knowing how these retroviral elements infiltrated some apes while sparing others could provide valuable insights into the process of evolu...

Study uncovers bacteria's worst enemy

...to treat actinide contamination. Actinides are the elements above atomic number 89 and are usually radioactive. The study's results indicate that actinide toxicity is primarily chemical, rather than radiological, and so a bacteria's resistance to radiation does not necessarily ensure a tolerance for radionucl...

Study reveals candidate targets for anti-retroviral therapeutics

...me Research. Many organisms harbor mobile genetic elements that are non-pathogenic molecular relatives of retroviruses. In budding yeast, these mobile elements (called Ty ?or transposable yeast ?elements) encode proteins that are homologs of retroviral protein...

Doctors closer to using gene analysis to help trauma patients

...s that enhance a patient’s recovery as well as the elements that cause people to die sometimes weeks after an injury occurs. Identifying those factors could help physicians choose the best treatment, a decision that could mean the difference between life and death, according to UF Genetics Institute scientist...

Insight into DNA's 'weakest links' may yield clues to cancer biology

...enome. The most common breakpoint involved two Ty elements in an inverted, head-to-head orientation, they reported. That finding led the researchers to suggest one possible mechanism for chromosomal breaks and rearrangements. A delay in DNA synthesis leads to an increase in single-stranded DNA, the research...

Cooperation is key—a new way of looking at MicroRNA and how it controls gene expression

...s and cancer-causing oncogenes, have these AU-rich elements built in. AU-rich element degradation involves a number of different proteins, including proteins that bind to the AU regions of the mRNA. These binding events may play a role in the stability and degradation of the mRNA. Despite much research over ...

Duke engineers develop new 3-D cardiac imaging probe

...ginal casing held enough cabling for 64 transducer elements whereas our design successfully incorporates 8 times that number." The probe generates ultrasound at 5 million vibrations per second, which, combined with the 504 sensors, provides great sensitivity and a sharp image, Smith said. And because the ima...

Controlling protein diversity

...er words, if the information in a gene is like the elements of a computer code, leaving out some of the code results in a very different program than what would have resulted if all the components had been included or different parts had been left out. In this instance, leaving out part of the gene changes th...

NASA links nanobacteria to kidney stones and other diseases

...oon and Mars, longer missions, and exposure to the elements of outer space, health is a major concern for astronauts. To further comprehend the implications of NB, trials were conducted at NASA to examine NB, in a bioreactor chamber which simulates conditions of space travel. In this microgravity environment...

PCRM develops world's first cruelty-free insulin assay

...cally a synthetic formula with cofactors and trace elements that promote cell growth. Then, in collaboration with Linco Research of St. Charles, Missouri, Even successfully incorporated antibodies grown in the medium into a test kit for human insulin. A report on the new methodology will be published soon in...

Scientists find fossil proof of Egypt's ancient climate

... the silts remain isotopically light and the minor elements do not show intense evaporative trends, suggesting that the lake remained stable and fresh." Smith and Kieniewicz attended the 116th annual meeting of the Geological Society of America, held Nov. 7-10 in Denver. Kieniewicz presented a paper there on...

Unexpressed But Indispensable -- The DNA Sequences That Control Development

...e characteristic features of non-coding regulatory elements are largely unknown, making their discovery by sim... they identified 1,373 highly conserved non-coding elements (CNEs), with an average length of about 200 base pairs. The average sequence match is 84%: not perfe...

Falling ants glide back to trunk to avoid dangers of forest floor

...the same tree. "To me, one of the most intriguing elements of the story is that so many ants jump voluntarily," Kaspari said. "The last view of a lizard chasing a Cephalotes ant may be that ant dropping toward the ground and spiraling back to the tree, safe from both the litter below and the predator above."...

Researchers identify target for cancer drugs

...prostate cancers. While scientists have identified elements of this pathway, other key components have remained a mystery. Researchers at Whitehead Institute now have discovered a missing puzzle piece, a finding that may present drug makers with a significant new cancer target. "We believe that we have ident...

New Clues Add 40,000 Years to Age of Human Species

...ating the outcrops required volcanic minerals with elements that undergo radioactive decay. Brown and McDougall collected rocks containing volcanic debris, which McDougall dated to approximately 195,000 years old. Forty years ago, radiometric dating methods were less accurate and suggested an age of roughly...

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