The gap between willingness-to-pay (WTP) and willingness-to-accept (WTA) benefit values typifies situations in which reference points—and direction of movement from reference points—are consequential. Why WTA-WTP discrepancies arise is not well understood. We generalize models of reference dependence to identify separate reference dependence effects for increases and decreases in environmental ...

This paper analyzes the spatial clustering of galaxies in the Canada-France Redshift Survey (CFRS). We have used the projected two-point correlation function, w(rp), to investigate the spatial distribution of the 591 galaxies with secure redshifts between 0 ≤ z ≤ 1.3 in the five CFRS fields. The slope of the two-point correlation function for the sample as a whole is γ = 1.64 ± 0.05, very simil...

1. The oscillation method for measuring total respiratory resistance (Rrs) is a simple method of assessing airway dimensions which can be applied in epidemiological surveys and potentially might be useful for detecting mild airway disease in smokers. However, it is not known whether abnormalities in Rrs are only present when there are also abnormalities in simple spirometric tests. 2. We have c...

The ground state energy of a polaron in a superlattice was calculated using the doubletime Green functions. The e ective mass of the polaron along the planes perpendicular to the superlattice axis was also calculated. The dependence of the ground state energy and the e ective mass along the planes perpendicular to the superlattice axis on the electron-phonon coupling constant and on the superla...

A study of Apparent Motion (AM) of Gamma type is presented which extends previous findings (Geissler, Schebera & Kompass 1999) showing that a temporal parameter (ISI), critical for the perceptual transition AM -> flicker, exhibits discrete timing. The major empirical results, a set of four significant ISI modal values, having integer size ratios 3 : 4 : 6 : 8, and a regularity in the spacing of...

1098-4402= Three 6-cell 805 MHz superconducting cavity prototypes for acceleration in the velocity range of about 0.4 to 0.53 times the speed of light have been fabricated and tested. The quality factors (Q0) were between 7 109 and 1:4 1010 at the design field (accelerating gradient of 8–10 MV=m). The maximum gradients reached were between 11 and 16 MV=m; in each case, the Q0 values were 3 109 ...

the purpose of present study was to determine the effect of different levels of balance task difficulty and visual feedback on balance in elderly women. fourteen healthy elderly women (mean age 57/65 yr) were selected voluntarily. participants were asked to stand still on a stability platform under each of two conditions (with visual feedback and without visual feedback) in three levels of diff...

In several taxa, increasing leaf succulence has been associated with decreasing mesophyll conductance (g M) and an increasing dependence on Crassulacean acid metabolism (CAM). However, in succulent Aizoaceae, the photosynthetic tissues are adjacent to the leaf surfaces with an internal achlorophyllous hydrenchyma. It was hypothesized that this arrangement increases g M, obviating a strong depen...