Washington State University

About: Washington State University is a education organization based out in Pullman, Washington, United States. It is known for research contribution in the topics: Population & Gene. The organization has 26947 authors who have published 57736 publications receiving 2341509 citations. The organization is also known as: WSU & Wazzu.

The Empirical Status of Deterrence Theory: A Meta-Analysis

Abstract: The literature on deterrence theory has undergone a number of changes in recent years. With the rise of new ways of thinking about rational decision-making and offending, four developments have changed the way criminologists view the deterrence perspective: the effectiveness of certain situational crime prevention strategies; the recognition of the importance of the "non-legal costs" of criminal behavior; the integration of deterrence theory with other criminological perspectives, such as social learning and self-control theories; and how the imposition of sanctions can actually lower individuals' perceived estimates of getting caught in the future, known as the "resetting effect". The body of "shaming" research points to the growing recognition of the complex effects that criminal sanctions have on individuals' future criminal behaviour. Even independent of shame, however, research has emerged indicating that individuals who have been punished end up being more inclined to commit future offenses than those who have not been punished.

Combined Charge Carrier Transport and Photoelectrochemical Characterization of BiVO4 Single Crystals: Intrinsic Behavior of a Complex Metal Oxide

Abstract: Bismuth vanadate (BiVO4) is a promising photoelectrode material for the oxidation of water, but fundamental studies of this material are lacking. To address this, we report electrical and photoelectrochemical (PEC) properties of BiVO4 single crystals (undoped, 0.6% Mo, and 0.3% W:BiVO4) grown using the floating zone technique. We demonstrate that a small polaron hopping conduction mechanism dominates from 250 to 400 K, undergoing a transition to a variable-range hopping mechanism at lower temperatures. An anisotropy ratio of ~3 was observed along the c axis, attributed to the layered structure of BiVO4. Measurements of the ac field Hall effect yielded an electron mobility of ~0.2 cm(2) V(-1) s(-1) for Mo and W:BiVO4 at 300 K. By application of the Gartner model, a hole diffusion length of ~100 nm was estimated. As a result of low carrier mobility, attempts to measure the dc Hall effect were unsuccessful. Analyses of the Raman spectra showed that Mo and W substituted for V and acted as donor impurities. Mott-Schottky analysis of electrodes with the (001) face exposed yielded a flat band potential of 0.03-0.08 V versus the reversible H2 electrode, while incident photon conversion efficiency tests showed that the dark coloration of the doped single crystals did not result in additional photocurrent. Comparison of these intrinsic properties to those of other metal oxides for PEC applications gives valuable insight into this material as a photoanode.