Correspondence to: Carmen Ho Abstract: Fibromyalgia is not an uncommon clinical problem in rheumatology clinics. Widespread pain is the main symptom of fibromyalgia. Pain can help avoiding dangers and saving lives, but it can also destroy lives of people having chronic pain. Pain is a subjective and yet complex feeling. The mechanism of pain amplification in fibromyalgia is discussed. Current e...

Two competing recombination mechanisms of stimulated emission in the vicinity of 145 K have been directly observed in the temperature dependence of the optical emission spectra for high-quality, unintentionally doped gallium nitride. Our analysis of the spectra indicates that exciton-exciton scattering is responsible for stimulated emission below 145 K, while at higher temperatures an electron-...

We show that optimal universal quantum cloning can be realized via stimulated emission. Universality of the cloning procedure is achieved by choosing systems that have appropriate symmetries. We first discuss a scheme based on stimulated emission in certain three-level systems, e.g. atoms in a cavity. Then we present a way of realizing optimal universal cloning based on stimulated parametric do...

What happens when you use a partially defective bit-commitment protocol to commit to the same bit many times? For example, suppose that the protocol allows the receiver to guess the committed bit with advantage ε, and that you used that protocol to commit to the same bit more than 1/ε times. Or suppose that you encrypted some message many times (to many people), only to discover later that the ...