In recent years, the study of heavy quarkonia (bb̄, cc̄, ...) has gone through several theoretical and experimental advances. From the theoretical side the introduction of non-relativistic effective field theories (EFTs) of QCD has put our description of these systems on the solid ground of QCD. It has made it possible, in the case of several observables, to factorize the high-energy dynamics int...

The method of effective field theories (EFTs) is developed for the scattering of two particles at wavelengths which are large compared to the range of their interaction. It is shown that the renormalized EFT is equivalent to the effective range expansion, to a Schrödinger equation with a pseudo-potential, and to an energy expansion of a generic boundary condition at the origin. The roles of reg...

Eight different color polymorphisms of the Red-backed Salamander (Plethodon cinereus) have been described throughout its range. Among them, the erythristic phenotype is a mimetic morph with coloration patterns similar to that of toxic Eastern Newt efts (Notophthalmus viridescens). We describe an erythristic morph of P. cinereus collected at Mountain Lake Biological Station, Virginia. To our kno...

An effective field theory (EFT) of a physical system is a theory of the dynamics of the system at energies small compared to a given cutoff. For some systems, low-energy states with respect to this cutoff are effectively independent of ("decoupled from") states at high energies. Hence one may study the low-energy sector of the theory without the need for a detailed description of the high-energ...

Ewing's sarcoma is a member of Ewing's family tumors (EFTs) and the second most common solid bone and soft tissue malignancy of children and young adults. It is associated in 85% of cases with the t(11;22)(q24:q12) chromosomal translocation that generates fusion of the 5' segment of the EWS gene with the 3' segment of the ETS family gene FLI-1. The EWS-FLI-1 fusion protein behaves as an aberran...

We discuss the general method for obtaining full positivity bounds on multi-field effective field theories (EFTs). While leading order forward are commonly derived from elastic scattering of two (superposed) external states, we show that a generic EFT containing 3 or more low-energy modes, this approach only gives incomplete bounds. then identify allowed parameter space as dual to spectrahedron...

It is often a challenge for child to communicate their pain, and possibilities do so should be strengthened in healthcare settings. Digital self-assessment provides potential solution person-centered care pain management promotes participation when ill. A child's perception of assessment differs it assessed using digital or analog formats. As we move into the era, there an urgent need validate ...

We consider heavy meson-antimeson pairs and their coupling to quarkonium in the context of nonrelativistic effective field theories (EFTs) incorporating adiabatic expansion. work out all leading order couplings obtain contributions masses widths quarkonia. match new potentials terms QCD. Using available lattice data for coupled system lowest lying pair, we extract mixing potential use it comput...

Efts and adult specimens (n = 142) of the red-spotted newt Notophthalmus viridescens from various locations in Canada and USA were analyzed for the presence of tetrodotoxin (TTX) and of its analogues 6-epitetrodotoxin and 11-oxotetrodotoxin. Considerable individual variations in toxin levels were found within and among populations from New Hampshire, New York, Pennsylvania, and Virginia ranging...