Neural stem cell study reveals mechanism that may play role in cancer
... at high levels in migrating neurons and along radial
fibers and that they were, in fact, highly ... regions of the neurons that were in contact with radial
In a notable finding, says Elias, ... the neurons then begin their migration along the radial
fibers to the neocortex.
But the study ...
Olympus broadens portfolio with new biliary metallic stent
... stent designed with exceptional anatomic conformability and superior radial
support. The X-Suit NIR's proprietary NIRflex cell design provides a ... the stent during deployment. The ease of deployment combined with superior radial
support makes the X-Suit NIR the stent of choice for re-establishing ...
Hurricane Ike tracked by ESA's Envisat
... of the residual Doppler from the radar echoes allows for the retrieval of radial
velocities which are used to provide systematically and in Near Real Time a map of the radial
component of sea surface velocity.
The colour of the graphics shown in ...
January-February GSA Bulletin media highlights
... gravity spreading. They propose that the generally linear chasmata of Valles Marineris reflect extension, collapse, and excavation along fractures radial
to Tharsis, either forming or reactivated as part of one lateral margin of the Thaumasia gravity-spreading system. The other, dextral, lateral margin ...
Caltech researchers get first look at how groups of cells coordinate their movements
... analyzing that vector not just along its x, y, and z axes, but by looking at its cylindrical coordinates. "The spreading has both an angular and a radial
component," Stathopoulos notes.
What the data showed was that the mesodermal cells move in a directed manner, traveling down and moving ...
The physics of star-forming clouds and the urban environment
"We present the results of a combined theoretical and experimental investigation of spider capture thread. While the radial
threads in a spider web are simply cylindrical, the circumferential threads are pre-wound helices immersed in a viscous ...
Molecular differences between early and advanced melanomas could provide new drug targets
... this key molecular difference between radial
melanomas that spread on the surface of the skin ... individuals with advanced stage melanomas.
melanomas that have not spread below the skin can ... the scientists introduced the gene for Akt into radial
growth melanoma cells, the cells expressed nearly ...
Characterizing Skin Cancer by Microarrays
... published report.
Melanomas grow in two phases: radial
and vertical. Vertical-phase tumors are more ... (spread cancer to other parts of the body) than radial
Christopher Haqq and colleagues dissected a large primary melanoma into radial
and vertical portions, and through microarray ...
Anemone genes reveal versatile building blocks for body plans
... and jellyfish, are members of the phylum Cnidaria, and they possess a radial
body plan that is distinct from the familiar bilateral body plan exhibited ... findings, scientists are now studying how these shared genes are used by radial
and bilateral animals to learn how different body plans are determined and ...
Motor transport in bio-nano systems
... compartments, which resemble axons of nerve cells, see Figure 2, and radial
arrangements of filaments within disk-like compartments, which resemble ... as one increases the number of motors involved in the cargo transport. In radial
systems, on the other hand, jams can be avoided, to a large extent, ...
Surprising origin of cell's internal highways
"We show that not only the centrosome, but the Golgi also makes microtubules," Kaverina said. "And unlike centrosomal microtubules, which are radial
and symmetric, these microtubules are directional."
They found that microtubules originating at the Golgi are directed toward the cell "front," ...
Ring-like formations in drying DNA drops could affect hybridization studies
... to the droplet's edge was counterintuitive," Wong said. "We had expected the DNA to extend along the direction of flow, which was mainly in the radial
direction. But, instead of resembling the spokes of a bicycle wheel, the transported DNA resembled the rim of a bicycle wheel."
Since nearly all ...
Purdue creates new low-cost system to detect bacteria
... adapting a mathematical method created in 1934 by Dutch physicist Fritz Zernike, who created a set of mathematical "descriptors" subsequently called radial
Zernike polynomials. These descriptors can be used to analyze how light-wave patterns are distorted after passing through lenses having complex flaws ...
Terahertz imaging may reduce breast cancer surgeries
... 14 invasive ductal carcinomas, three mixed invasive ductal and lobular carcinomas, two cases of pure ductal carcinoma in situ and one dense radial
In breast cancer excision surgery, the aim is to remove the entire tumor with an adequate margin of normal tissue, while minimizing the ...
Powerful new tool for studying brain development
... those in the normal developing mouse nervous system provided by the BGEM, the St. Jude investigators demonstrated that specific brain cells, called radial
glial cells, likely gave rise to ependymomas.
"Our demonstration that identical-looking ependymomas that arise in different regions of the ...