منابع مشابه
Invertebrate solutions for sensing gravity
In species with paternal genome elimination, males do not pass on their genes through their sons (they do not make it into their sons' sperm) and might therefore favour daughters. The same is true for the bacteria, because these are only transmitted through the cytoplasm in scale insect eggs (and so through the maternal line of their hosts). Females, however, benefit from both male and female o...
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The critical maturation time of central otolith neurons in processing spatial orientations was examined in Sprague-Dawley rats. With the use of immuno-hybridization histochemical methods, we observed c-fos expression in vestibular nuclear neurons responding to transverse movement on the horizontal plane as early as P7 and those to antero-posterior stimulation as early as P9. In the inferior oli...
متن کاملPostnatal development of spatial coding in the gravity sensing system
The critical maturation time of central otolith neurons in processing spatial orientations was examined in Sprague-Dawley rats. With the use of immuno-hybridization histochemical methods, we observed c-fos expression in vestibular nuclear neurons responding to transverse movement on the horizontal plane as early as P7 and those to antero-posterior stimulation as early as P9. In the inferior oli...
متن کاملMulti-plaquette solutions for discretized Ashtekar gravity
A discretized version of canonical quantum gravity proposed by Loll is investigated. After slightly modifying Loll’s discretized Hamiltonian constraint, we encode its action on the spin network states in terms of combinatorial topological manipulations of the lattice loops. Using this topological formulation we find new solutions to the discretized Wheeler-Dewitt equation. These solutions have ...
متن کاملNon-perturbative Solutions for Lattice Quantum Gravity
We propose a new, discretized model for the study of 3+1-dimensional canonical quantum gravity, based on the classical SL(2,C)-connection formulation. The discretization takes place on a topological N3-lattice with periodic boundary conditions. All operators and wave functions are constructed from one-dimensional link variables, which are regarded as the fundamental building blocks of the theor...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2009
ISSN: 0960-9822
DOI: 10.1016/j.cub.2008.12.024