منابع مشابه
Myogenic Shape-Shifters
A paper in this issue from the laboratory of Guilio Cossu (De Angelis et al., 1999) is of particular interest because it goes against the grain of what we think we know about two fundamental aspects of muscle biology: first, the embryonic origin of muscle cells; and, second, how damaged muscle repairs itself. Current models indicate that the nuclei in skeletal muscle myofibers originate from th...
متن کاملShape-Shifters: How Strigolactone Signaling Helps Shape the Shoot[OPEN]
When a deer eats the primary shoot of a plant, this can activate a nearby dormant axillary bud, causing it to formasecondary shoot. Genetic and environmental factors also affect shoot architecture, which strongly influences crop productivity. Changes in shoot architecture are mediated by long-distance signals, including phytohormones. For example, strigolactones (SLs) help regulate shoot branch...
متن کاملShape-Shifters: How Strigolactone Signaling Helps Shape the Shoot[OPEN]
When a deer eats the primary shoot of a plant, this can activate a nearby dormant axillary bud, causing it to formasecondary shoot. Genetic and environmental factors also affect shoot architecture, which strongly influences crop productivity. Changes in shoot architecture are mediated by long-distance signals, including phytohormones. For example, strigolactones (SLs) help regulate shoot branch...
متن کاملRobotics. Shape shifters tread a daunting path toward reality.
754 From Star Trek to Star Wars to Terminator, science-fiction movies and TV series teem with morphing robots. If that vision is indeed a sneak preview of things to come, then the future of robotics is lying face down on a table in Mark Yim’s laboratory at the Palo Alto Research Center (PARC) in California. Or rather, was lying face down, because now it’s trying to stand up. First, the 30-centi...
متن کاملGuided resonance reflective phase shifters
We present reflective phase shifters based on high contrast gratings resting on a low-index spacer backed by a metallic mirror. The guided resonance of the grating combined with the reflection from the metallic mirror leads to an all-pass filter with 2π phase shift variation and unity reflectivity across the resonance. We present simulations, fabrication and measurement of passive devices fabri...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1999
ISSN: 0021-9525,1540-8140
DOI: 10.1083/jcb.147.4.695