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tag physical forces neuroscience

The Movement of Goods Around the Cell
Patricia Bassereau and Bruno Goud | Apr 1, 2011 | 10+ min read
A biologist and a physicist collaborate on a decade-long exploration of the physical parameters of membrane traffic in eukaryotic cells.
The Movement of Goods Around the Cell
Patricia Bassereau and Bruno Goud | Apr 1, 2011 | 9 min read
By Patricia Bassereau and Bruno Goud The Movement of Goods Around the Cell A biologist and a physicist collaborate on a decade-long exploration of the physical parameters of membrane traffic in eukaryotic cells. 3-D reconstruction of confocal images showing membrane tubes pulled from a giant unilamellar vesicle by kinesin motors along microtubules. The tube diameter is about 100 nm and the vesicle diameter about 15 μm.Courtesy of Cécile Leduc In proka
Nanotech Dreams
Jeffrey Perkel | Mar 3, 2002 | 9 min read
Nanotechnology hit the big time in July 1995, when it debuted on the television show, The Outer Limits. In an episode entitled "The New Breed," a scientist develops nanorobots capable of repairing damaged cells and correcting physical defects. But, like any good morality play, the experiment goes horribly wrong, turning a panacea into a nightmare. Clearly, nanotechnology makes for good science fiction, but scientists have been working to make it an interesting reality, too. Nanotechnology refers
The Tiniest of Life's Rafts
Jill Adams | Oct 10, 2004 | 6 min read
LIPID RAFTS INSIDE AND OUT:© 2002 AAASIn the outer leaflet (A), sphingolipids and cholesterol form less fluid microdomains (B) called lipid rafts, which are enriched for GPI-proteins. Microdomains may contain more rigid subdomains (C) enriched for the sphingolipid ganglioside GM1. The membrane inner leaflet contains microdomains (D) with unknown lipid composition enriched for prenylated proteins. In contrast, caveolin and proteins carrying the two saturated fatty acyl chains become concentr
Researchers Setting Up Labs Must Learn Skills On The Fly
Karen Young Kreeger | Mar 2, 1997 | 10 min read
Also in this story : Six Common Mistakes For More Information ... Setting up one's first lab can be a tortuous process requiring many decisions. Researchers must choose what kind of lab they want to run and the role they want to establish with technicians, students, and colleagues, among others. But guidelines on how to make those decisions and skills like managing a lab budget or hiring the right employees aren't taught to budding scientists. Many researchers say they learned what works best t
Ten Technologies in Five Years
Sam Jaffe(sjaffe@the-scientist.com) | Dec 5, 2004 | 8 min read
When scientists make long-term research plans, they must try to anticipate how emerging technologies will influence their work in the coming years.
How Well Do Mice Model Humans?
Ricki Lewis | Oct 25, 1998 | 8 min read
STRIKING RESEMBLANCE: James Croom, who studies Down syndrome mice at North Carolina State University, says the animals are providing valuable information useful to humans. When a page-one article in the May 3, 1998, Sunday New York Times portrayed angiogenesis inhibitors that fight cancer in mice as being possible just around the corner for humans, criticism for raising false hopes erupted. Merely 10 weeks later, however, when researchers from the University of Hawaii reported cloning the fi

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