ATP deficit in oxygen-limited tumour cord growth (FF++)

submitted by: sast
This is a simulation of tumour cord growth , where cells suffer from hypoxia (energy deficit shown with colour). The tumour grows along the blood vessel (coincides with x -axis). Red line shows the position of the tumour–host interface. This particular simulation was programmed in FreeFEM++ out of curiousity. The source code for simulation may be found at http://code.google.com/p/cord . This video reflects work in progress and may be different from the final results .

Disease Detectors - Partners Video Magazine

submitted by: csrees

Scientists have developed nanoscale biosensors that can help detect diseases on farms and in hospitals. Disease Detectors is a segment from Partners Video Magazine's latest episode, The Science of Small. To view the entire episode visit: http://www.csrees.usda.gov/newsroom/partners/partners.html

New Skin - Partners Video Magazine

submitted by: csrees

Scientists in Illinois are using corn protein to create new skin and deliver medicine through nanotubes. New Skin is a segment from Partners Video Magazine's latest episode, The Science of Small. To view the entire episode visit: http://www.csrees.usda.gov/newsroom/partners/partners.html

Following the Flow - Partners Video Magazine

submitted by: csrees

Researchers are discovering how nano-scale tracers can uncover the sources of pollution in America's farm fields and waters. Following the Flow is a segment from Partners Video Magazine's latest episode, The Science of Small. To view the entire episode visit: http://www.csrees.usda.gov/newsroom/partners/partners.html

Small Regulatory RNAs May Sharpen Spatial Expression Patterns

linked profile(s): hlevine
submitted by: apryl
The precise establishment of gene expression patterns is a crucial step in development. Formation of a sharp boundary between high and low spatial expression domains requires a genetic mechanism that exhibits sensitivity, yet is robust to fluctuations, a demand that may not be easily achieved by morphogens alone. Recently, it has been demonstrated that small RNAs (and, in particular, microRNAs) play many roles in embryonic development. Whereas some RNAs are essential for embryogenesis,...
Authors: Erel Levine, Peter Mchale, Herbert Levine

Sleeping Beauty Invades Rat's Genome

submitted by: simont
Knockouts are not just for Mice anymore. Aron Geurts and Howard Jacob from the Medical College of Wisconsin talk about their plans for creating transgenic rats using the Sleeping beauty transposon. Coming out of work pioneered by Colin Bishop's lab, Geurts and Jacob describe how the Sleeping Beauty system can be used to make transgenic rats and their plans to make the phenotype data from these rats available via the MCW PGA website ( http://pga.mcw.edu ) and the strains themselves accessible...