The Magnetic Compass
The magnetic compass of domestic chickens, Gallus gallus
... chickens’ magnetic compass and comparison with the magnetic compass of robins points to an identical mechanism, namely a light-dependent inclination compass based on radical pair ...
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White throated sparrows calibrate their magnetic compass by polarized light cues during both autumn and spring migration
... and magnetic compass cues used by migratory songbirds for orientation has long been the topic of an intense ...their magnetic compass, but only when given full access to celestial cues, ...
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Ontogenetic development of magnetic compass orientation in domestic chickens (Gallus gallus)
... The magnetic compass could be very useful during this phase: the young chicks could record the compass direction in which they move away from the hen and reverse it to return to ...axial ...
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Spontaneous magnetic orientation in larval Drosophila shares properties with learned magnetic compass responses in adult flies and mice
... learned magnetic compass responses in both adult fruit flies and adult mealworm beetles appear to be mediated by a light- dependent mechanism (reviewed by Phillips et ...unimodal magnetic orientation ...
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The flexible migratory orientation system of the savannah sparrow (Passerculus sandwichensis)
... of magnetic orientation in young birds caused us to re-examine this ...true compass directions that calibrates the direction of migration selected using the magnetic ...true compass directions ...
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A behavioral perspective on the biophysics of the light dependent magnetic compass: a link between directional and spatial perception?
... a compass as ...of magnetic orientation that, in contrast to normal migratory (i.e. compass) orientation: (1) does not reverse seasonally, (2) is sensitive to the polarity of the magnetic ...
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Migratory blackcaps tested in Emlen funnels can orient at 85 degrees but not at 88 degrees magnetic inclination
... The magnetic compass of night-migratory songbirds is almost certainly embedded in their visual system (Schulten et ...birds’ magnetic compass orientation ...
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Sanderlings (Calidris alba) have a magnetic compass: orientation experiments during spring migration in Iceland
... the magnetic inclination compass unreliable or even unusable, the use of the sun compass involves problems with time compensation during rapid passage through the compressed longitudes and, finally, ...
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Calibration of magnetic and celestial compass cues in migratory birds a review of cue conflict experiments
... the magnetic compass and use it to calibrate other celestial compass systems (see earlier discussion), what celestial cues are recalibrated relative to the magnetic field under these ...
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Magnetic compass orientation in European robins is dependent on both wavelength and intensity of light
... the magnetic compass in ...a magnetic inclination compass by showing axial rather than polar characteristics and by being insensitive to changes in magnetic intensity smaller than 10% ...
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Zebra finches have a light dependent magnetic compass similar to migratory birds
... light-dependent magnetic compass that provides information about the spatial alignment of the geomagnetic ...the magnetic compass in zebra ...using magnetic compass ...trained ...
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The role of extraocular photoreceptors in newt magnetic compass orientation: parallels between light dependent magnetoreception and polarized light detection in vertebrates
... in magnetic orientation is ...the magnetic compass from ...sun compass, rather than the magnetic compass, when the sun disk is visible (Ferguson, 1971; Adler, ...of ...
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Effect of a magnetic pulse on the orientation of silvereyes, zosterops l lateralis, during spring migration
... the magnetic compass. The magnetic pulse appears to interfere with a hypothetical magnetite-based receptor that allows birds to measure the local values of magnetic gradients, thus providing ...
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SELF CONTROLLED ROBOT FOR MILITARY
... The aim of this mode is to enable autonomous functioning of the unmanned ground vehicle without human supervision. To accomplish this operation navigation technology such as GPS, magnetic compass is used to ...
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Magnetic compass orientation in two strictly subterranean rodents: learned or species specific innate directional preference?
... robust magnetic compass orientation once magnetic cues are associated with a light gradient in training cages prior to testing in a circular, visually symmetrical ...natural magnetic field and ...
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Artificial Neural Network Based Error Reduction in Cricket Compass: Indoor Localization Technique
... a compass with physically small dimensions, comparable in size to handheld PDAs, and still achieve high directional accuracy, we need an alternative method to estimate this differential ...
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Sans Merce, Marta (2001): Development of drift chambers and physics simulations for the COMPASS experiment. Dissertation, LMU München: Fakultät für Physik
... The COMPASS apparatus is a two-stage magnetic spectrometer (see fig. 2.5) to obtain a good momentum resolution from a few 100 MeV/c up to 150 GeV/c. Both stages will be equipped with hadronic and ...
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Future plans at COMPASS
... the COMPASS (Common Muon and Proton Apparatus for Structure and Spectroscopy) experiment enters a second phase with a new extended physics program to obtain deeper insight in the partonic structure of ...
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The Comprehensive Post-Acute Stroke Services (COMPASS) study: design and methods for a cluster-randomized pragmatic trial
... implementation guided by the RE-AIM Framework [49]. This analysis will evaluate the Reach, Adoption, Implemen- tation, and Maintenance of the COMPASS intervention while the pragmatic trial will evaluate ...
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Migratory behaviour of displaced homing yellow eels (Anguilla anguilla) in the North Sea
... V-VIII; small circles: point of release; triangles in the compass circles: swimming direc- tion of eels through the water calculated every 15 min.; arrow in centre of the compass[r] ...
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