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Tag: "dot" at biology news

Math model predicts cancer behavior

Vito Quaranta clicks on a small black dot on his computer screen. The dot ?which represents about a thousand cancer cells ?begins to "grow," morphing into a mass with finger-...

Pathway toward gene silencing described in plants

...t a brilliant signal in the nucleolus, a brilliant dot in the same place for each of the proteins," said ...ontes also found that the siRNAs were in that same dot within the nucleolus. Pontes and Pikaard were able to deduce the order of events by studying mutati...

Study may help slay 'Yellow Monster'

...mental exposure to uranium from mine tailings that dot the landscape across the Navajo Nation. "When the uranium mining boom crashed in the '80s, it really crashed and there wasn't much cleanup," Stearns said. Estimates put the number of abandoned mines on the Navajo Nation at more than 1,100. NAU sen...

New nanosensor uses quantum dots to detect DNA

...researchers shined a laser on the mix, the quantum dot passed the energy on to the Cy5 molecule that was ...inctive glow would not have appeared. Each quantum dot can connect to up to about 60 DNA sequences, making the combined glow even brighter and easier to se...

'Smart' nanoprobes light up disease

...olves tethering a gold nanoparticle to the quantum dot to inhibit luminescence. The tether, a peptide seq...holds the gold close enough to prevent the quantum dot from giving off its light. In their test system, the Rice team used a peptide tether that is cleave...

The right drug at the right time

...d of replacing the pricey solvents used in quantum dot synthesis with cheaper oils that are commonplace a... than a year ago on the scale-up issues of quantum dot manufacture, but the solvents turned out to be so expensive that we just couldn't afford to run more...

Method slashes quantum dot costs by 80 percent

...d of replacing the pricey solvents used in quantum dot synthesis with cheaper oils that are commonplace a... than a year ago on the scale-up issues of quantum dot manufacture, but the solvents turned out to be so expensive that we just couldn't afford to run more...

Out of sight, out of mind? Not necessarily

... horizontal or a vertical line or a red or a green dot flashed on the screen. Researchers then asked the...participants had to guess whether a red or a green dot had flashed on the screen, they gave the correct answer with 81 percent accuracy. "This high degree...

New technique helps identify multiple DNA regulatory sites

...ss chip printed with up to 500,000 tiny dots. Each dot comprises multiple DNA molecules of known sequence, i.e. a piece of an individual's genetic code. Scientists use DNA microarrays to discover and analyze a person's DNA or messenger-RNA genetic code. This allows for, say, the early diagnosis of liver ...

New technique may speed DNA analysis

...ss chip printed with up to 500,000 tiny dots. Each dot comprises multiple DNA molecules of known sequence, i.e. a piece of an individual's genetic code. Scientists use DNA microarrays to discover and analyze a person's DNA or messenger-RNA genetic code. This allows for, say, the early diagnosis of liver ...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...ilt researchers report that not only can a quantum dot system detect the presence of particles of the res...esearchers' next step will be to develop a quantum dot cocktail capable of simultaneously detecting the presence of at least five major respiratory viruses...

Tagging pathogens with synthetic DNA 'barcodes'

...the color codes of individual beads. Another is by dot blotting, in which the sample is spread on a sheet of absorbent paper and made visible to the naked eye. Or the color can be observed directly through a fluorescent light microscope, which is useful in situations where the geographic distribution of ...

Young Blood Revives Aging Muscles, Stanford Researchers Find

...alled satellite cells, the muscle stem cells, that dot muscle tissue. These normally lie dormant but come to the rescue in response to damaged muscle-at least they do in young mice and humans. In older mice the satellite cells hold the same position, but are deaf to the muscle's cry for help. In the Nat...

Nanoparticles offer new hope for detection and treatment

...articles are a few thousand times smaller than the dot above this "i," yet each can carry about 100,000 molecules of the metal used to provide contrast in MRI images. This creates a high density of contrast agent, and when the particles bind to a specific area, that site glows brightly in MRI scans. In ...

Nano-Probes Allow an Inside Look at Cell Nuclei

...ally compact cadmium selenide/zinc sulfide quantum dot coated with silica. Next, they stole a trick from a virus's playbook to smuggle this nanocrystal past the highly selective membrane that guards the entrance into the nucleus. In nature, a virus called SV40 is coated with a protein that binds to a cel...

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(Date:4/17/2014)... Gene expression is the process whereby the genetic ... products, such as proteins, which have numerous different ... as an important intermediary during gene expression, by ... molecular mechanisms involved in manufacturing proteins. , ... mRNA molecules present in an organism at a ...
(Date:4/17/2014)... are chock full of wild animals and plant life, ... fungi are churning away in the soil, decomposing organic ... the vital role these fungi play in ecological systems, ... team of scientists has generated a genetic map of ... The work was published this week in the ...
(Date:4/17/2014)... by the Australian National University (ANU), have developed ... deep-sea temperature variability over the past 5.3 million ... the climate surrounding ice ages over the past ... relationship between carbon dioxide levels, global temperatures and ... of Southampton (UoS) and the National Oceanography Centre ...
Breaking Biology News(10 mins):Rapid and accurate mRNA detection in plant tissues 2Stanford biologists help solve fungal mysteries 2Stanford biologists help solve fungal mysteries 3Ancient sea-levels give new clues on ice ages 2
(Date:4/17/2014)... as many as 10 million older Americans suffer from ... isolation. , However, new research a project that ... for six years found that Internet use among ... more than 30 percent. , "That,s a very strong ... of telecommunication, information studies and media who led the ...
(Date:4/17/2014)... one in five infants in the United States annually ... several months after birth. Research into probiotic use for ... April 1, 2014 issue of the British Medical ... "Probiotics and Infant Colic," concluding that the use of ... did not reduce crying or fussing in infants ...
(Date:4/17/2014)... Boston University School of Medicine (BUSM) have discovered ... in an experimental model. The findings, reported in ... Abuse , may lead to more effective treatments ... one of the leading causes of illness and ... economic impact by limiting the productivity of workers ...
(Date:4/17/2014)... (SACRAMENTO, Calif.) An international team led by researchers ... protein complex, which plays a key role in cell ... process. This is the first time the complex has ... could make cyclin B1/Cdk1 an excellent target to control ... medicine. The research was published online today in the ...
(Date:4/17/2014)... by Cesar A. Arias, M.D., Ph.D., at The University ... identified a new superbug that caused a bloodstream infection ... April 17 issue of The New England Journal ... of a class of highly-resistant bacteria known as methicillin-resistant ... major cause of hospital and community-associated infections. The superbug ...
Breaking Medicine News(10 mins):Health News:Internet use can help ward off depression among elderly 2Health News:New study says probiotic use for infant colic is not effective in reducing symptoms 2Health News:BUSM researchers find anti-seizure drug may reduce alcohol consumption 2Health News:Dual role: Key cell division proteins also power up mitochondria 2Health News:New MRSA superbug emerges in Brazil 2
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