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M Loftis

Publications and source records attributed to M Loftis.

2 recordsLinked to original sources

Using knowledge maps and scripted cooperation to inform college students about patterns of behavior related to recurring abuse of alcohol.

Objectives of this study were to determine the effectiveness of using a specific information format--graphic representations called knowledge maps--and an information processing strategy--scripted cooperation--in teaching college students about behavior patterns that underlie recurring abuse of alcohol. Participants in this three-session, 6-hour study were 111 Texas Christian University students recruited from undergraduate psychology classes. Participants were randomly assigned to one of two materials format conditions (map vs. text format) and to one of two processing strategy conditions (individual processing vs. scripted interaction with a partner). Results indicate that map format facilitated recall of the pattern information; processing with a partner appeared to enhance perception of the multidimensional nature of behavior that supports alcohol use.

Adult↗

Evaluation of the VIDAS Listeria (LIS) immunoassay for the detection of Listeria in foods using demi-Fraser and Fraser enrichment broths, as modification of AOAC Official Method 999.06 (AOAC Official Method 2004.06).

A multilaboratory study was conducted to compare the VIDAS LIS immunoassay with the standard cultural methods for the detection of Listeria in foods using an enrichment modification of AOAC Official Method 999.06. The modified enrichment protocol was implemented to harmonize the VIDAS LIS assay with the VIDAS LMO2 assay. Five food types--brie cheese, vanilla ice cream, frozen green beans, frozen raw tilapia fish, and cooked roast beef--at 3 inoculation levels, were analyzed by each method. A total of 15 laboratories representing government and industry participated. In this study, 1206 test portions were tested, of which 1170 were used in the statistical analysis. There were 433 positive by the VIDAS LIS assay and 396 positive by the standard culture methods. A Chi-square analysis of each of the 5 food types, at the 3 inoculation levels tested, was performed. The resulting average Chi square analysis, 0.42, indicated that, overall, there are no statistical differences between the VIDAS LIS assay and the standard methods at the 5% level of significance.

Animals↗