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"Stokes, Raymond C"
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The Impact of the Saccharin Warning Label on Sales of Diet Soft Drinks in Supermarkets
Responding to public protest against an FDA-proposed ban on saccharin, Congress in 1977 passed legislation placing a temporary moratorium on the ban and framing the language of a warning label to be required on saccharin-containing products. Appearance of the warning label on diet soft drinks was associated with a short-term reduction in the rate of growth of sales in grocery stores. There was early response to the warning in neighborhoods with a high proportion of college-educated household heads, delayed response in neighborhoods with high concentrations of children, and no change in stores serving neighborhoods with high concentrations of the elderly and households heads with less than high school education. Public policy implications are discussed.
Journal Article
Effects of a Health Promotion Advertising Campaign on Sales of Ready-to-Eat Cereals
The objective of this study was to determine how the sales of various segments of the high fiber and nonhigh fiber, ready-to-eat (RTE) cereal market were influenced by a health message advertising campaign about the possible benefits of a high fiber, low fat diet for preventing some types of cancer. The fiber statements in the media campaign were endorsed by the National Cancer Institute (NCI). The campaign was undertaken by the Kellogg Company to promote its line of high fiber cereal products, including Kellogg's All-Bran®. The data base consisted of computerized purchase data from 209 Giant Food, Inc., supermarkets in the Baltimore, MD, and Washington, DC, metropolitan areas. All the RTE cereal products in the stores were classified according to their fiber content and competitive market positions compared with Kellogg high fiber cereals. Estimates of market share for the various classes of RTE cereal products were obtained weekly for each store during a period of 64 weeks, beginning 16 weeks before the start of the campaign. Shifts in market share between high fiber and nonhigh fiber cereal classifications indicate substantial increases in consumer purchases of Kellogg high fiber cereals, particularly All-Bran, beginning with the start of the Kellogg advertising campaign. Growth in market share of high fiber cereals continued during the entire 48-week evaluation period, with much of the later growth in non-Kellogg high fiber cereals. Growth in sales of high fiber cereals was mainly at the expense of low fiber cereals such as granola-type products. The implications of these results for the competitive and educational effectiveness of commercially sponsored health and diet messages are discussed.
Journal Article
Ecological mitigation of hillslope instability: ten key issues facing researchers and practitioners
BACKGROUND: Plants alter their environment in a number of ways. With correct management, plant communities can positively impact soil degradation processes such as surface erosion and shallow landslides. However, there are major gaps in our understanding of physical and ecological processes on hillslopes, and the application of research to restoration and engineering projects. SCOPE: To identify the key issues of concern to researchers and practitioners involved in designing and implementing projects to mitigate hillslope instability, we organized a discussion during the Third International Conference on Soil Bio- and Eco-Engineering: The Use of Vegetation to Improve Slope Stability, Vancouver, Canada, July 2012. The facilitators asked delegates to answer three questions: (i) what do practitioners need from science? (ii) what are some of the key knowledge gaps? (iii) what ideas do you have for future collaborative research projects between practitioners and researchers? From this discussion, ten key issues were identified, considered as the kernel of future studies concerning the impact of vegetation on slope stability and erosion processes. Each issue is described and a discussion at the end of this paper addresses how we can augment the use of ecological engineering techniques for mitigating slope instability. CONCLUSIONS: We show that through fundamental and applied research in related fields (e.g., soil formation and biogeochemistry, hydrology and microbial ecology), reliable data can be obtained for use by practitioners seeking adapted solutions for a given site. Through fieldwork, accessible databases, modelling and collaborative projects, awareness and acceptance of the use of plant material in slope restoration projects should increase significantly, particularly in the civil and geotechnical communities.
Journal Article
Wind-driven emission of marine ice-nucleating particles in the Scripps Ocean-Atmosphere Research Simulator (SOARS)
Sea spray aerosol (SSA) represents one of the most abundant natural aerosol types, contributing significantly to global aerosol mass and aerosol optical depth, as well as to both the magnitude of and the uncertainty in aerosol radiative forcing. In addition to its direct effects, SSA can also serve as ice-nucleating particles (INPs), which are required for the initiation of cloud glaciation at temperatures warmer than ca. −36 °C. This study presents initial results from the CHaracterizing Atmosphere-Ocean parameters in SOARS (CHAOS) mesocosm campaign, which was conducted in the new Scripps Ocean-Atmosphere Research Simulator (SOARS) wind–wave channel. SOARS allows for isolation of individual factors, such as wave height, wind speed, water temperature, or biological state, and can carefully vary them in a controlled manner. Here, we focus on the influence of wind speed on the emission of SSA and INPs. In agreement with recent Southern Ocean measurements, online INP concentrations during CHAOS showed an increasing relationship with wind speed, whereas offline CHAOS INP concentrations did not, which may be related to sampling inlet differences. Changes in the INP activated fraction, dominant INP particle morphology, and INP composition were seen to vary with wind. Seawater ice-nucleating entity concentrations during CHAOS were stable over time, indicating that changes in atmospheric INPs were driven by wind speed and wave-breaking mechanics rather than variations in seawater chemistry or biology. While specific emission mechanisms remain elusive, these observations may help explain some of the variability in INP concentration and composition that has been seen in ambient measurements.
Journal Article
Coordinating the impact of structural genomics on the human α-helical transmembrane proteome
Given the recent successes in determining membrane-protein structures, we explore the tractability of determining representatives for the entire human membrane proteome. This proteome contains 2,925 unique integral α-helical transmembrane-domain sequences that cluster into 1,201 families sharing more than 25% sequence identity. Structures of 100 optimally selected targets would increase the fraction of modelable human α-helical transmembrane domains from 26% to 58%, providing structure and function information not otherwise available.
Journal Article
The Business of Waste
The advent of consumer societies in the United Kingdom and West Germany after 1945 led to the mass 'production' of garbage. This book compares the social, cultural and economic fallout of the growing volume and changing composition of waste in the two countries from 1945 to the present through sustained attention to changes in the business of handling household waste. Though the UK and Germany are similar in population density, degrees of urbanisation, and standardisation, the two countries took profoundly different paths from low-waste to throwaway societies, and more recently, towards the goal of 'zero-waste'. The authors explore evolving balances between public and private provision in waste services; the transformation of public cleansing into waste management; the role of government legislation and regulation; emerging conceptualisations of recycling and resource recovery; and the gradual shift of the industry's regulatory and business context from local to national and then to international.
eBook
The Business of Waste
This book compares the evolution of the household refuse business in Britain and Germany since 1945
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