Book reviews

Abstract

Social Policy, Public Policy Meredith Edwards, Cosmo Howard, Robin Miller (2001), Allen & Unwin, Sydney ISBN 1 86448 9480 $35.00 RRP.

Spirituality in social work practice: Narratives for professional helping Sonia Abels (Ed) (2000), Love Publishing Company, Denver, Colorado 131 pp. $56.90 (paperback)

Family — centered policies and practices: International implications Katharine Briar-Lawson, Hal A. Lawson, Charles B. Hennon and Alan R. Jones, Columbia University Press, New York Chichester, West Sussex ISBN 0 231 12106 7 462 pp. (soft cover)

Lookin' after our own: Supporting Aboriginal families through the hospital experience Angela Clarke, Shawana Andrews and Neville Austin (2000), A report sponsored by the Victorian Health Promotion Foundation

Making stepfamilies work A course for couples Irene Gerrard & Margaret Howden (1998), Stepfamily Association of Victoria Inc. ISBN 0 646 3622 4 (spiral bound)

The empowerment approach to social work practice: Building the beloved community Judith AS Lee (2001), Columbia University Press, New York, ISBN 0 231 11548 2 517 pp. (hardback)     

Transportation Difficulty of Black and White Rural Older Adults

The purpose of this study was to understand self-reported transportation difficulty among rural older adults. We used data from the UAB Study of Aging (255 Black and 259 White), community-dwelling participants residing in rural areas. We examined the relationship of predisposing characteristics, enabling resources, and measures of need for care with self-reports of transportation difficulty. Blacks reported having more transportation difficulty than Whites (24.7% vs. 11.6%; p ≤ .05). When we introduced other variables, race differences disappeared, but there was a race by income interaction with transportation difficulty. Whites with lower incomes were more likely to have transportation difficulty than Whites with higher incomes. When data from Blacks and Whites were analyzed separately, income was the only variable associated with transportation difficulty among Whites. Among Blacks, income was not related to transportation difficulty but several variables other than income (age, gender, marital status, MMSE scores and depression) were.     

More Than Help? Volunteerism in US Latino Culture

Volunteerism makes critical contributions to individual lives and society as a whole. However, to date, few studies have investigated volunteerism within Latino communities, a large and growing US population. The aim of this study was to understand how non-metropolitan US Latinos perceive volunteerism, as well as to determine what motivates and what deters their participation in volunteer programs. Our research team conducted six focus groups with 36 Latina women living in the State of Illinois. The focus groups covered topics such as the definition of volunteerism, participation motives and barriers, personal volunteer experience, and Latino culture, community, and organizations. We also assessed demographic information. Results from this study indicate that Latinas have a unique understanding of the concept of volunteerism. Participants associated everyday “helping” with volunteerism, establishing commonplace forms of aid as perhaps a “Latino way of volunteering.” We found time-consuming activities such as family responsibilities and work to be deterrents to Latinas participating in more formal volunteer activities.     

Stochastic Estimates of Exposure and Cancer Risk from Carbon Tetrachloride Released to the Air from the Rocky Flats Plant

Carbon tetrachloride is a degreasing agent that was used at the Rocky Flats Plant (RFP) in Colorado to clean product components and equipment. The chemical is considered a volatile organic compound and a probable human carcinogen. During the time the plant operated (1953-1989), most of the carbon tetrachloride was released to the atmosphere through building exhaust ducts. A smaller amount was released to the air via evaporation from open-air burn pits and ground-surface discharge points. Airborne releases from the plant were conservatively estimated to be equivalent to the amount of carbon tetrachloride consumed annually by the plant, which was estimated to be between 3.6 and 180 Mg per year. This assumption was supported by calculations that showed that most of the carbon tetrachloride discharged to the ground surface would subsequently be released to the atmosphere. Atmospheric transport of carbon tetrachloride from the plant to the surrounding community was estimated using a Gaussian Puff dispersion model (RATCHET). Time-integrated concentrations were estimated for nine hypothetical but realistic exposure scenarios that considered variation in lifestyle, location, age, and gender. Uncertainty distributions were developed for cancer slope factors and atmospheric dispersion factors. These uncertainties were propagated through to the final risk estimate using Monte Carlo techniques. The geometric mean risk estimates varied from 5.2 x 10(-6) for a hypothetical rancher or laborer working near the RFP to 3.4 x 10(-9) for an infant scenario. The distribution of incremental lifetime cancer incidence risk for the hypothetical rancher was between 1.3 x 10(-6) (5% value) and 2.1 x 10(-5) (95% value). These estimates are similar to or exceed estimated cancer risks posed by releases of radionuclides from the site.     

Infants Use Category Label Knowledge to Interpret Absent Reference

This research investigated infants’ (16 and 20 months) use of category information in responding to references to absent objects. Infants were asked to find an object in the box (e.g., “Find an apple!”). When allowed to search, they found either an object from the mentioned category (a plastic apple) or a different object. Infants in both age groups searched again in the box trying to find another object more often on nonreferent than on referent trials (Experiment 1). However, when nonreferents were categorically related to referents, only older infants detected a mismatch and searched again (Experiment 2). These findings suggest that infants use category knowledge when processing references to absent objects.     

Applying the Haddon Matrix to evaluate sexual assault interventions on college campuses

Abstract

Objective: A Haddon Matrix analysis was used to systematically review literature evaluating college campus sexual assault prevention programs to identify research gaps and intervention opportunities. Methods: Articles included were published from January 1, 2001 to December 31, 2017; indexed in PubMed, PsycInfo, or Scopus; involving English-speaking undergraduate students in the US; with experimental or quasi-experimental design. Results: All 31 eligible studies evaluated educational programing; all relied on self-report measures; and three-quarters had follow-up periods ≤ 6?months. Significant positive effects were reported by 6 of 10 studies that measured bystander behavior, 6 of 10 that educated potential victims and assessed victimization, and one of four that educated potential perpetrators and measured perpetration. Conclusion: The Haddon Matrix analysis identified the need for interventions that address perpetrators and the post-assault period, as well as studies of the impact of enforcing existing policies and new environmental and situational approaches to sexual assault prevention.     

A Predictive Model for Survival of Escherichia coli O157:H7 and Generic E. coli in Soil Amended with Untreated Animal Manure

This study aimed at developing a predictive model that captures the influences of a variety of agricultural and environmental variables and is able to predict the concentrations of enteric bacteria in soil amended with untreated Biological Soil Amendments of Animal Origin (BSAAO) under dynamic conditions. We developed and validated a Random Forest model using data from a longitudinal field study conducted in mid-Atlantic United States investigating the survival of Escherichia coli O157:H7 and generic E. coli in soils amended with untreated dairy manure, horse manure, or poultry litter. Amendment type, days of rain since the previous sampling day, and soil moisture content were identified as the most influential agricultural and environmental variables impacting concentrations of viable E. coli O157:H7 and generic E. coli recovered from amended soils. Our model results also indicated that E. coli O157:H7 and generic E. coli declined at similar rates in amended soils under dynamic field conditions.The Random Forest model accurately predicted changes in viable E. coli concentrations over time under different agricultural and environmental conditions. Our model also accurately characterized the variability of E. coli concentration in amended soil over time by providing upper and lower prediction bound estimates. Cross-validation results indicated that our model can be potentially generalized to other geographic regions and incorporated into a risk assessment for evaluating the risks associated with application of untreated BSAAO. Our model can be validated for other regions and predictive performance also can be enhanced when data sets from additional geographic regions become available.