Mid-morning Break and Poster Sessions: Application of the Theory of Planned Behaviour within School-Based Prevention Programs for Adolescent Gambling

The theory of planned behaviour (TPB) and the concept of anticipatory negative emotions have attracted considerable research attention in the formulation of effective preventive interventions. This approach has identified several key constructs (i.e., attitudes, subjective norms, perceptions of control, anticipation of negative emotions) as valid predictors of gambling intentions and behaviour. However, no empirical investigation has utilized these constructs in the design or evaluation of a youth problem gambling prevention initiative. Objectives. The current research aims to assess the effects of a prevention video on gambling-related attitudes, subjective norms, control perceptions, anticipated negative emotions, and intentions. The video focuses on a problem gambler’s testimonial and includes dramatic vignettes depicting the potential risks and consequences associated with excessive gambling. Methodology. A sample of 328 high school students were randomly assigned to either a video or control group. Participants were assessed at pre- and post-intervention. Results. Preliminary results reveal that the video produced changes in students’: (i) attitudes towards; (ii) perceptions of control over and; (iii) negative anticipatory emotions following excessive participation in gambling. Individuals receiving the intervention were observed to have a significant decreases in positive attitudes toward gambling as well as perceptions of control over gambling, and a significant increase in their anticipation of negative emotions for becoming over-involved in gambling. Conclusions. Positive effects of the video were found. Recommendations for future research are discussed

Alien Registration- St Pierre, Marie L. (Lewiston, Androscoggin County)

https://digitalmaine.com/alien_docs/28118/thumbnail.jp

Microbial Diversity of the Symbiotic Colony of Bacteria and Yeast (SCOBY) and its Impact on the Organoleptic Properties of Kombucha

Kombucha is an effervescent fermented tea beverage that is gaining popularity for its probiotic nature and purported health benefits. The market for kombucha is expected to reach $1.8 billion by the year 2020. The composition of microbes that compose the symbiotic colony of bacteria and yeast (SCOBY) is highly variable with some species commonly found from the Gluconobacter, Acetobacter, Zygosaccharomyces, Saccharomyces, and Schizosaccharomyces genera. It was hypothesized that different SCOBYs, obtained from different sources would vary in microbial diversity and produce different biochemical and flavor profiles in the resulting beverage over several generations. Kombucha is a fermented product and ethanol is often present in the final beverage, so it is important that a quality control method exist. The main objectives of this research were: (1a) to investigate the microbial variation between three SCOBYs of different origins and (1b) determine if there are significant differences within SCOBYs over 10 generations; (2) to determine the impact that the kombucha SCOBY has on the biochemical profile of the beverage; and (3) to learn the vocabulary words that consumers use to characterize the flavor notes in kombucha. Kombucha was produced in a laboratory setting with three kombucha SCOBY pellicles prescreened for fermentate heterogeneity by High-performance liquid chromatography (HPLC) analysis. Two batches from each unique SCOBY were produced every 14 days. The liquid from batches 1, 5, 10, and the corresponding mother SCOBY were saved for downstream analysis including DNA sequencing with Oxford Nanopore’s MinION and HPLC analysis. A sensory evaluation study was also conducted to determine the vocabulary that consumers use to describe kombucha. The two main microbes present in the SCOBYs tested in this research were Komagataeibacter xylinus and Gluconobacter oxydans. The diversity of the SCOBY did change slightly with time; however, over ten generations, the slight change in diversity was not significant (p-value \u3e 0.05). By calculating beta diversity, Fisher’s alpha, Shannon diversity, and Simpson diversity, a clearer picture of the diversity of the SCOBY community between SCOBYs of different origins could be determined and demonstrated consortia to be quite different. Investigating the two main microbes in kombucha, K. xylinus and G. oxydans, the Pearson correlations between the microbe and the flavor compounds acidic acid, lactic acid, glucose, fructose and sucrose were determined. K. xylinus was negatively correlated to glucose, fructose, lactic acid and acetic acid, and positively correlated to sucrose (part of the formulation) concentrations suggesting this microbe dominates earlier in the fermentation. G. oxydans was positively correlated to the concentrations of glucose, fructose, lactic acid and acetic acid, but negatively correlated to sucrose, suggesting it dominates later in the fermentation. However, these correlation coefficients were low and not significant. A sensory evaluation study using 66 untrained panelists revealed the top 3 favorite flavors of kombucha amongst these panelists were ginger + other flavorings, ginger, and tropical flavors. Comparing two commercial and one lab-made kombucha sample showed that consumers found a significant difference in the vinegar, sour and bubbly flavor notes

Alien Registration- St Pierre, Adelbert L. (Auburn, Androscoggin County)

https://digitalmaine.com/alien_docs/30335/thumbnail.jp

The dynamic indentation response of sandwich panels with a corrugated or Y-frame core

The dynamic indentation response of stainless steel sandwich panels with a corrugated core or a Y-frame core has been explored using the finite element method to gain insight into the potential of the cores to mitigate against collisions over a wide range of impact velocities pertinent to land and sea-borne vehicles. Back-supported sandwich panels were impacted on the front face by a flat-bottomed or a circular punch at constant velocity ranging from quasi-static loading to 100 m/s. At velocities below 10 m/s the forces on the front and back faces are equal but inertia stabilisation raises the peak load above its quasi-static value. This strength elevation is greater for the corrugated core than for the Y-frame core, and more pronounced for the flat-bottomed punch than for the circular punch. For velocities greater than 10 m/s, the indentation force applied to the front face exceeds the force transmitted to the back face due to plastic-shock effects. In this regime, the force transmitted to the back face by the Y-frame core is markedly less than for the corrugated core, and this brings a performance benefit to the Y-frame, i.e. it protects the underlying structure in the event of a collision.This research was carried out under the project number MC2.06261 in the framework of the Research Program of the Materials innovation institute M2i (www.m2i.nl). The authors are also grateful for the financial support of the Fonds Québécois de la Recherche sur la Nature et les Technologies (FQRNT).This is the accepted manuscript of a paper publishing in the International Journal of Mechanical Sciences (L St-Pierre, NA Fleck, VS Deshpande, International Journal of Mechanical Sciences 2015, 92, 279–289

The predicted compressive strength of a pyramidal lattice made from case hardened steel tubes

AbstractA sandwich panel with a core made from solid pyramidal struts is a promising candidate for multifunctional application such as combined structural and heat-exchange function. This study explores the performance enhancement by making use of hollow struts, and examines the elevation in the plastic buckling strength by either strain hardening or case hardening. Finite element simulations are performed to quantify these enhancements. Also, the sensitivity of competing collapse modes to tube geometry and to the depth of case hardening is determined. A comparison with other lattice materials reveals that the pyramidal lattice made from case hardened steel tubes outperforms lattices made from solid struts of aluminium or titanium and has a comparable strength to a core made from carbon fibre reinforced polymers

Contributors to the High-impact IS Journals (1977-2014): An Aid for Setting Research Standards

Interest in the rankings of contributors to academic literature is evidenced by the numerous publications across most business and economic disciplines. This study presents the most prolific authors 1) over the entire history of the 11 high-impact IS journals and 2) over the ten most recent years for each of the journals. We include the number of authors who have published in the journals but who may not be considered prolific based on our classification; this data is important and especially critical for IS departments that set research standards. Identifying and ranking authors in the IS discipline is interesting for several reasons. While some may be curious to see how they perform compared to these researchers, a more beneficial application of the findings in this paper pertains to establishing realistic promotion and tenure standards. Although 11,204 authors published in the 11 high-impact journals, 7,734 (69%) of those authors published only once in these journals in the 1977-2014 period. This fact is essential for any IS department that sets promotion and tenure guidelines. Using our findings will help colleges and IS departments establish reasonable and attainable promotion and tenure standards based on the actual performance of others in the discipline

03/17/1947 Note to the Teachers of l\u27Ecole St. Pierre

Handwritten note to the teachers of l\u27Ecole St. Pierre.https://digitalcommons.usm.maine.edu/fac-lpg-1947-01-03/1036/thumbnail.jp