| 11. | In some cases, the second-order approximation is also called " paraxial ".
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| 12. | This yields the paraxial Helmholtz equation.
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| 13. | Fgf from the paraxial mesoderm has been suggested as a source of neural crest inductive signal.
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| 14. | It is often combined with the paraxial approximation in techniques such as ray transfer matrix analysis.
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| 15. | Knockout studies in mice indicate that this gene is important for specification of paraxial mesoderm structures.
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| 16. | Since this solution relies on the paraxial approximation, it is not accurate for very strongly diverging beams.
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| 17. | The paraxial approximation is used in Gaussian optics and " first-order " ray tracing.
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| 18. | The segmentation pattern observed in the peripheral nervous system ( PNS ) derives itself from the paraxial mesoderm.
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| 19. | The paraxial mesoderm is arranged along the sides of the notochord and neural tube as repetitive structures called somites.
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| 20. | Gaussian beam propagation is a simple paraxial physical optics model for the propagation of coherent radiation such as laser beams.
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