We explore whether the axion which solves strong CP problem can naturally be much lighter than canonical QCD axion. The $Z_\mathcal{N}$ symmetry proposed by Hook, with $\mathcal{N}$ mirror and degenerate worlds coexisting in Nature linked field, is considered terms of generic effective couplings. show that total potential safely approximated a single cosine large limit, we determine analytical ...

We report on recent progress in the search for dark matter particles with masses from 1 Mev c ^{-2} −2 to Gev . Several candidates this mass range are expected generate measurable electronic-recoil signals direct-detection exp...

Brain-derived neurotrophic factor (BDNF) mediates energy metabolism and feeding behavior. As a neurotrophin, BDNF promotes neuronal differentiation, survival during early development, adult neurogenesis, and neural plasticity; thus, there is the potential that BDNF could modify circuits important to eating behavior and energy expenditure. The possibility that "faulty" circuits could be remodele...

This paper analyses changes in the quality of meat (M. longissimus dorsi) of roe deer bucks during 21 days of cold storage (2 degrees C) under vacuum and modified atmosphere (MA) conditions (40% CO2/60% N2 and 60% CO2/40% N2). After 21 days of storage, meat packaged in a MA with 40% CO2 had higher (P < or = 0.05) L*, a*, b* and C* values in comparison with meat stored under vacuum and MA with 6...

In the industry center of lighters in Wenzhou, China, lighters are produced by a large number of small, vertically specialized, and agglomerated firms. Some firms specialize in assembling lighters, while the others specialize in producing parts. A perfect-competition model is developed to analyze this phenomenon, and four related factors are revealed to be involved. First, compared with standar...