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- C G Cardenas, L P Mar, +4 authors R S Scroggs
- The Journal of physiology
- 1999

1. The effect of serotonin (5-HT) on the hyperpolarization-activated cation current (IH) was studied in small-, medium- and large-diameter acutely isolated rat dorsal root ganglion (DRG) cells, including cells categorized as type 1, 2, 3 and 4 based on membrane properties. 5-HT increased IH in 91 % of medium-diameter DRG cells (including type 4) and in 67 %… (More)

- Peter Arnold, Jonathan Lenaghan, Guy D Moore, Laurence G Yaffe
- Physical review letters
- 2005

Hydrodynamical modeling of heavy-ion collisions at RHIC suggests that the quark-gluon plasma (QGP) "thermalizes" in a remarkably short time scale, about 0.6 fm/c. We argue that this should be viewed as indicating fast isotropization, but not necessarily complete thermalization, of the nonequilibrium QGP. Non-Abelian plasma instabilities can drive local… (More)

- Peter B Arnold, Wyndell Merritt, George T Rodeheaver, Chris A Campbell, Raymond F Morgan, David B Drake
- Annals of plastic surgery
- 2009

Botulinum toxin-A (BTX) has become a widely used pharmacologic agent for esthetic surgeons and those who treat neuromuscular and gastrointestinal conditions. Until recently, there has been very little basic science research related to how this powerful agent may be useful when applied to vessels. The mechanism of action of this agent suggests that it may be… (More)

- Peter B. Arnold, Cheng X. Li, Robert S. Waters
- Experimental Brain Research
- 2000

Neurons in layer IV of rat somatosensory (SI) barrel cortex receive punctate somatic input from well-defined regions of the periphery. Following peripheral deafferentation, SI neurons in deafferented cortex respond to new input from neighboring regions of the skin surface. The precise mechanism(s) through which this occurs is unknown, although… (More)

The leading-order effect of interactions on a homogeneous Bose gas is theoretically predicted to shift the critical temperature by an amount DeltaT(c) approximately equal to ca(sc)n(1/3)T(0) from the ideal gas result T(0), where a(sc) is the scattering length, n is the density, and c is a pure number. There have been several different theoretical estimates… (More)

Scenarios for electroweak baryogenesis require an understanding of the effective potential at finite temperature near a first-order electroweak phase transition. Working in Landau gauge, we present a calculation of the dominant two-loop corrections to the ring-improved one-loop potential in the formal limit g 4 ≪ λ ≪ g 2 , where λ is the Higgs self-coupling… (More)

Many aspects of high-temperature gauge theories, such as the electroweak baryon number violation rate, color conductivity, and the hard gluon damping rate, have previously been understood only at leading logarithmic order (that is, neglecting effects suppressed only by an inverse logarithm of the gauge coupling). We discuss how to systematically go beyond… (More)

- Peter Arnold
- 1999

A proper sequence of effective theories, corresponding to larger and larger distance scales, is crucial for analyzing real-time equilibrium physics in hot non-Abelian plasmas. For the study of color dynamics (by which I mean physics involving long wavelength gauge fluctuations), an important stepping stone in the sequence of effective theories is to have a… (More)

We discuss the sequence of effective theories needed to understand the qualitative , and quantitative, behavior of real-time correlators A(t)A(0) in ultra-relativistic plasmas. We analyze in detail the case where A is a gauge-invariant conserved current. This case is of interest because it includes a correlation recently measured in lattice simulations of… (More)

- Peter Arnold
- 1997

It has recently been argued that the rate per unit volume of baryon number violation (topological transitions) in the hot, symmetric phase of electroweak theory is of the form η α 5 w T 4 in the weak-coupling limit, where η is a non-perturbative numerical coefficient. Over the past several years, there have been attempts to extract the rate of baryon number… (More)