In recent years, non-Hermitian quantum physics has gained a lot in popularity the optics and condensed matter communities order to model systems with varying symmetries. this paper, we identify non-standard inner product that implies bosonic commutator relations for local electric magnetic field observables leads natural biorthogonal description of quantised electromagnetic field. When comparin...

CONTEXT Ephedra and ephedrine sometimes are used for weight loss or enhanced athletic performance, but the efficacy and safety of these compounds are uncertain. OBJECTIVE To assess the efficacy and safety of ephedra and ephedrine used for weight loss and enhanced athletic performance. DATA SOURCES We searched 9 databases using the terms ephedra, ephedrine, adverse effect, side effect, effic...

the aim of this study was to identify the relationship between sport motivation and athletic burnout in male soccer players participating in the 12th universiade in iran. the research method was descriptive/correlational method. 160 players who were members of soccer teams of universities completed these 2 questionnaires: 1- sport motivation scale (sms) by pelletier et al. (1995) with 24 items ...

OBJECTIVE Because the controversy about the relation of foot morphology and foot function is still present, we find it surprising that there are no studies published dealing with motor skills and athletic performance in flat-footed school children. Our aim in this study was to determine if there is an association between the degree of foot flatness and several motor skills that are necessary fo...

The compare package provides functions for comparing two R objects for equality, while allowing for a range of “minor” differences. Objects may be reordered, rounded, or resized, they may have names or attributes removed, or they may even be coerced to a new class if necessary in order to achieve equality. The results of comparisons report not just whether the objects are the same, but also inc...