The implications of differences between employer and worker employment/earnings reports for policy evaluation

Differences in administrative (UI) and survey (S) records on employment and earnings have substantial implications for assessing the impact of a variety of public interventions, such as welfare‐to‐work and employment training programs, and especially the state‐oriented welfare reform legislation of 1996. We use data from the 1998 and 1999 waves of the Child Support Demonstration Evaluation (CSDE) Resident Parent Surveys to explore individual differences between survey and UI employment and earnings reports for a Wisconsin sample of current and former welfare recipients. After exploring the potential causes of misreports from both sources, we document the degree of discrepancy between survey and UI earnings and employment measures and assess the difference between the two earnings measures in estimates of simple human capital (earnings) functions. Last, we evaluate the correspondence of the two measures with “hardship” indicators of economic well‐being.     

Stable isotope ratios as a tool in microbial forensics--part 3. Effect of culturing on agar-containing growth media

Stable isotope ratios of hydrogen and oxygen in microbes have been shown to be functions of the corresponding isotope ratios of the water with which the culture medium was prepared, and thus to contain a potential geographic signal. Water can evaporate from agar (solid) media during culturing, changing its isotope ratios. Here we describe the effect of drying on the isotope ratios of water extracted from agar media and the H and O stable isotope ratios ratios of Bacillus subtilis spores cultured on agar. The delta2H vs delta18O relationship of water in Petri dish agar was surprisingly constant during evaporation regardless of the ambient relative humidity, making it possible to calculate the approximate isotope ratios of the original water, even in significantly evaporated agar. The H stable isotope ratios of spores cultured on agar remained relatively unchanged as the agar dried, but the O ratio became significantly enriched.     

Pig decomposition in lotic aquatic systems: the potential use of algal growth in establishing a postmortem submersion interval (PMSI)

While algal community composition has been examined as a qualitative indicator of postmortem submersion interval (PMSI), there have been no quantitative studies on using algal growth rates as PMSI estimators. The present study was undertaken to examine pig decomposition in streams and to develop a more quantitative approach to estimate a PMSI. Pigs and ceramic tiles were completely submerged and regularly sampled for periphyton growth. Five stages of decomposition were identified for the submerged pig carcasses according to physical characteristics. Algal growth rates, measured quantitatively as a function of chlorophyll-a concentration, were greater on pigs compared with tiles; however, microhabitat (pools versus riffles) did not significantly influence algal growth. Additionally, there was a strong correlation between algal growth rate and time on pigs and tile substrates. This strong correlation was observed after significant rain events. Our study documents for the first time a quantitative technique to determine the length of time a corpse has been submerged in water. We suggest that algal growth rates may be a useful quantitative indicator in criminal investigations involving corpses that are completely submerged in stream or riverine habitats.     

Attributes of specialist search dogs--a questionnaire survey of UK dog handlers and trainers

The ideal and actual characteristics of specialist search dogs have been examined in questionnaire surveys of 244 dog handlers and trainers from the six main UK dog-using Government agencies. The ten most important characteristics were (ideal level in brackets): acuity of sense of smell (very high), incentive to find an object which is out of sight (very high), health (very high), tendency to hunt by smell alone (very high), stamina (very high), ability to learn from being rewarded (very high), tendency to be distracted when searching (very low); agility (high), consistency of behaviour from day to day (high), motivation to chase an object (high). Significant differences between actual and ideal levels were found for 22 of the 30 characteristics, predominantly in undesirable attributes, suggesting that there is scope for significant improvement in operational effectiveness.     

The nanny state or responsible government?

The use of statutory regulation of medical treatments is always contentious. This is particularly so in the case of assisted reproductive technologies (ART), and the treatments offered through IVF and related procedures. These technologies challenge traditional understandings of the family and motherhood, but also raise questions about the status of the human embryo and how it should be treated. This article argues that governments do have a role to play in the regulation of ART, in addition to the professional guidelines governing such treatments. It looks at three different types of statutory regulation in the Australian context.     

Who supports tax limitations: Evidence from massachusetts' proposition 2½

The vote on Massachusetts' Proposition 2½—and by extension the votes to restrain or roll back taxes in other states as well—should not be interpreted simply as expressions of the narrowly defined self-interest of the voters. This study shows that other characteristics such as sex, race, religion, occupation, educational background, and political orientation also have an important influence on voting behavior. These characteristics combine with self-interest measures such as public sector employment and voters' likely gains from tax reduction to push individual voters in different directions on the issue of tax limitation. Consequently, we find little polarization in the electorate along demographic lines.