Data handling methods and target detection results for multibeam and sidescan data collected as part of the search for SwissAir Flight 111

The crash of SwissAir Flight 111, off Nova Scotia in September 1998, triggered one of the largest seabed search surveys in Canadian history. The primary search tools used were sidescan sonars (both conventional and focussed types) and multibeam sonars. The processed search data needed to be distributed on a daily basis to other elements of the fleet for precise location of divers and other optical seabed search instruments (including laser linescan and ROV video). As a result of the glacial history of the region, many natural targets, similar in gross nature to aircraft debris were present. These included widespread linear bedrock outcrop patterns together with near ubiquitous glacial erratic boulders. Because of the severely broken-up nature of the remaining aircraft debris, sidescan imaging alone was often insufficient to unambiguously identify targets. The complementary attributes of higher resolution, but poorly located, sidescan imagery together with slightly lower resolution, but excellently navigated multibeam sonar proved to be one of critical factors in the success of the search. It proved necessary to rely heavily on the regional context of the seabed (provided by the multibeam sonar bathymetry and backscatter imagery) to separate natural geomorphic targets from anomalous anthropogenic debris. In order to confidently prove or disprove a potential target, the interpreter required simultaneous access to the full resolution sidescan data in the geographic context of the multibeam framework. Specific software tools had to be adapted or developed shipboard to provide this capability. Whilst developed specifically for this application, these survey tools can provide improved processing speed and confidence as part of more general mine hunting, hydrographic, engineering or scientific surveys

Hazardous drinking is associated with expectancies for the simultaneous use of alcohol and e-cigarettes

Background: Alcohol and tobacco use are especially prevalent among college students, with co-use rates being as high as 59% (Weitzman, 2005). Related adverse health outcomes are further magnified during simultaneous use. Expectancies for substance use are consistently associated with heaviness of use and substance-related consequences. Therefore, the current study examined associations between expectancies for e-cigarette use and heaviness of alcohol use. Methods: College students (N = 362; Mage = 19.32, SD = 0.98, 72% Female) completed psychological measures (i.e. The Alcohol Use Disorder Identification Test (AUDIT) and the Nicotine and Other Substance Interaction Expectancies-E-cig Revised (NOSIE-ER). Results: Half (51%) of participants endorsed both lifetime e-cigarette and alcohol use. Of these, 30% use an e-cigarette at least once a month and 62% report hazardous drinking (AUDIT ≥ 8). AUDIT scores were associated with expectancies that drinking increases e-cigarette consumption (r=.29, p \u3c .001), with expectancies that e-cigarette consumption increases drinking (r=.17, p \u3c .05), and with overall expectancies for the simultaneous use of alcohol and e-cigarettes (r=.30, p \u3c.001). Conclusions: Results suggest that as college students engage in more hazardous drinking, they report greater expectancies for simultaneous use of alcohol and e-cigarette. Future studies should use experimental paradigms to test causal links between alcohol and e-cigarette use, especially across individuals with varying degrees of alcohol and nicotine consumption.https://orb.binghamton.edu/research_days_posters_spring2020/1092/thumbnail.jp

Campus Vol IX N 3

Shaw, Ted. Cover. Picture. 1. Anonymous. The New Yahker . Prose. 7. Anonymous. Professor Biddleton\u27s Experiment . Prose. 6. Hoh, Paul. Good Night . Poem. 10. Kull, Shaw. Guilty . Cartoon. 11. Shaw, Ted. Untitled. Cartoon. 12. Jacobs, Wolcott. The Belle of Balu . Prose. 12. LeFever, Ogden Gnash. The Tragedy of Herman Gath . Prose. 14. Anonymous. Habitual . Prose. 16. Cook, Mike. This is Jazz . Prose. 17. Tuttle, C. Untitled. Cartoon. 16. Anonymous. More Books . Prose. 19

Morale among general practitioners:qualitative study exploring relations between partnership arrangements, personal style, and workload

OBJECTIVES: To explore general practitioners' experiences of wellbeing and distress at work, to identify their perceptions of the causes of and solutions to distress, and to draw out implications for improving morale in general practice. DESIGN: Three stage qualitative study consisting of one to one unstructured interviews, one to one guided interviews, and focus groups. SETTING: Fife, Lothian, and the Borders, South East Scotland. PARTICIPANTS: 63 general practitioner principals. RESULTS: Morale of general practitioners was explained by the complex interrelations between factors. Three key factors were identified: workload, personal style, and practice arrangements. Workload was commonly identified as a cause of low morale, but partnership arrangements were also a key mediating variable between increasing workload and external changes in general practice on the one hand and individual responses to these changes on the other. Integrated interventions at personal, partnership, and practice levels were seen to make considerable contributions to improving morale. Effective partnerships helped individuals to manage workload, but increasing workload was also seen to take away time and opportunities for practices to manage change and to build supportive and effective working environments. CONCLUSIONS: Solutions to the problem of low morale need integrated initiatives at individual, partnership, practice, and policy levels. Improving partnership arrangements is a key intervention, and rigorous action research is needed to evaluate different approaches