Flying Drosophila Orient to Sky Polarization
نویسندگان
چکیده
منابع مشابه
Flying Drosophila Orient to Sky Polarization
Insects maintain a constant bearing across a wide range of spatial scales. Monarch butterflies and locusts traverse continents [1, 2], and foraging bees and ants travel hundreds of meters to return to their nests [1, 3, 4], whereas many other insects fly straight for only a few centimeters before changing direction. Despite this variation in spatial scale, the brain region thought to underlie l...
متن کاملDigital imaging of clear-sky polarization.
If digital images of clear daytime or twilight skies are acquired through a linear polarizing filter, they can be combined to produce high-resolution maps of skylight polarization. Here polarization P and normalized Stokes parameter Q are measured near sunset at one inland and two coastal sites. Maps that include the principal plane consistently show that the familiar Arago and Babinet neutral ...
متن کاملPolarization and anisotropy of the microwave sky.
We study the polarization-polarization and polarization-temperature correlations in standard adiabatic scenarios for structure formation. Temperature anisotropies due to gravitational potential wells and oscillations in the photon-baryon-electron uid on the surface of last scattering are each associated with a correlated polarization pattern. While thècorrelated part' of the polarization has an...
متن کاملPolarization singularities in the clear sky
Ideas from singularity theory provide a simple account of the pattern of polarization directions in daylight. The singularities (two near the Sun and two near the anti-Sun) are points in the sky where the polarization line pattern has index +1/2 and the intensity of polarization is zero. The singularities are caused by multiple scattering that splits into two each of the unstable index +1 singu...
متن کاملFlying through the Drosophila Cytoskeletal Genome
The well-developed genetics of Drosophila make it an excellent system to understand mechanisms of cytoskeletal function and organization and how the cytoskeleton is coupled to development and differentiation. Many years of work have revealed that Drosophila has a set of cytoskeletal structural proteins and protein motors qualitatively similar to most other eukaryotes. The full toolbox of cytosk...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Current Biology
سال: 2012
ISSN: 0960-9822
DOI: 10.1016/j.cub.2011.11.026