We suggest that the discrepant lifetime measurements of ortho-positronium can be explained by ortho-positronium oscillations into mirror ortho-positronium. This explanation can be tested in future vacuum experiments. [email protected] [email protected] A “mirror universe” is predicted to exist if parity and/or time reversal are unbroken symmetries of nature [1,2]. The idea is th...

Mirror matter is predicted to exist if parity is an unbroken symmetry of nature. Currently, there is a large amount of evidence that mirror matter actually exists coming from astrophysics and particle physics. One of the most fascinating (but speculative) possibilities is that there is a significant abundance of mirror matter within our solar system. If the mirror matter condensed to form a lar...

We study Mirror Symmetry of log Calabi-Yau surfaces. On one hand, we consider the number of “affine lines” of each degree in P\B, where B is a smooth cubic. On the other hand, we consider coefficients of a certain expansion of a function obtained from the integrals of dx/x ∧ dy/y over 2chains whose boundaries lie on Bφ, where {Bφ} is a family of smooth cubics. Then, for small degrees, they coin...

Identification of mutations in an FGF receptor gene underlying scale loss in a zebrafish mutant, as well as the domesticated mirror carp breed, emphasises the role of genetic redundancy as a facilitator of evolutionary change and has implications for the molecular basis of morphological evolution.

higher-level representations when we are thinking more abstractly. By any metric, my publication record shows that I am quite sympathetic to the idea that sensory and motor systems play a substantial role in what we have traditionally viewed as “higher cognition.” Some cognitive psychologists might even label me as an embodied cognition theorist for all the reasons noted above. But at the same ...

III. Preliminary results 5 IIIa. Three-mirror quasi-optical passive compressor 6 IIIb. Optimization of the three-mirror passive compressor parameters 7 IIIc. Prototype of a passive compressor with a three-mirror resonator 10 IIId. Four-mirror quasi-optical passive compressor 14 IIIe. Prototype of a passive compressor with a four mirror resonator 15 IIIf. Diffraction gratings as active elements ...

Genetic factors are known to play a role in causing lung cancer. Twin cases of bronchioloalveolar, squamous, and anaplastic bronchogenic carcinoma have been previously reported. We describe mirror-image twins with adenocarcinoma of the lung occurring in mirror-image locations. They shared smoking and an occupational risk, carpentry, in addition to identical genetic backgrounds.