No well-defined remnant Fermi surface in Sr2CuO2Cl2

In angle-resolved photoelectron spectra of the antiferromagnetic insulators Ca2CuO2Cl2 and Sr2CuO2Cl2 a sharp drop of the spectral intensity of the lowest-lying band is observed along a line in k space equivalent to the Fermi surface of the optimally doped high-temperature superconductors. This was interpreted as a signature of the existence of a remnant Fermi surface in the insulating phase of the high-temperature superconductors. In this paper it is shown that the drop of the spectral intensity is not related to the spectral function but is a consequence of the electron-photon matrix elementComment: 4 pages, 3 figure

Pseudoeurycea unguidentis

Number of Pages: 2Integrative BiologyGeological Science

Pseudoeurycea longicauda

Number of Pages: 2Integrative BiologyGeological Science

The Wister Mud Pot Lineament: Southeastward Extension or Abandoned Strand of the San Andreas Fault?

We present the results of a survey of mud pots in the Wister Unit of the Imperial Wildlife Area. Thirty-three mud pots, pot clusters, or related geothermal vents (hundreds of pots in all) were identified, and most were found to cluster along a northwest-trending line that is more or less coincident with the postulated Sand Hills fault. An extrapolation of the trace of the San Andreas fault southeastward from its accepted terminus north of Bombay Beach very nearly coincides with the mud pot lineament and may represent a surface manifestation of the San Andreas fault southeast of the Salton Sea. Additionally, a recent survey of vents near Mullet Island in the Salton Sea revealed eight areas along a northwest-striking line where gas was bubbling up through the water and in two cases hot mud and water were being violently ejected

Behavioral Aspects of Pricing

Buyers sometimes exhibit seemingly “irrational” behavior with respect to prices and use socially embedded heuristics to simplify their purchase decisions. In some cases small changes in prices can lead to much larger than anticipated changes in sales and profitability. Sellers need to understand the heuristics consumers use, the situations in which they emerge, and recognize how they can respond in markets where information and knowledge of product attributes and competitive prices is increasingly available via the Internet. This chapter explores consumers’ behavioral reactions to price through a review of contemporary literature in the field of pricing. The chapter delineates the nature and scope of these effects based upon a critical review of the most up-to-date empirical research in the field, and concludes by providing implications for innovation in pricing, and guidance for managers to reduce the disconnect between themselves and consumers