Objectives -To evaluate and compare the results produced by Summon and EBSCO Discovery Service (EDS) for the types of searches typically performed by library users at North Carolina State University. Also, to compare the performance of these products to Google Scholar for the same types of searches.Methods -A study was conducted to compare the search performance of two web-scale discovery services: ProQuest's Summon and EBSCO Discovery Service (EDS). The performance of these services was also compared to Google Scholar. A sample of 183 actual user searches, randomly selected from the NCSU Libraries' 2013 Summon search logs, was used for the study. For each query, searches were performed in Summon, EDS, and Google Scholar. The results of known-item searches were compared for retrieval of the known item, and the top ten results of topical searches were compared for the number of relevant results.
Evidence Based Library and Information Practice 2015, 10.1 35Results -There was no significant difference in the results between Summon and EDS for either known-item or topical searches. There was also no significant difference between the performance of the two discovery services and Google Scholar for known-item searches. However, Google Scholar outperformed both discovery services for topical searches.Conclusions -There was no significant difference in the relevance of search results between Summon and EDS. Thus, any decision to purchase one of those products over the other should be based upon other considerations (e.g., technical issues, cost, customer service, or user interface).
Intriguing and potentially commercially useful microorganisms are found in our surroundings and new tools allow us to learn about their genetic potential and evolutionary history. Engaging students from different disciplines and courses in the search for microbes requires an exciting project with innovative but straightforward procedures and goals. Here we describe an interdisciplinary program to engage students from different courses in the sampling, identification and analysis of the DNA sequences of a unique yet common microbe, Delftia spp. A campus-wide challenge was created to identify the prevalence of this genus, able to precipitate gold, involving introductory level environmental and life science courses, upper-level advanced laboratory modules taken by undergraduate students (juniors and seniors), graduate students and staff from the campus. The number of participants involved allowed for extensive sampling while undergraduate researchers and students in lab-based courses participated in the sample processing and analyses, helping contextualize and solidify their learning of the molecular biology techniques. The results were shared at each step through publicly accessible websites and workshops. This model allows for the rapid discovery of Delftia presence and prevalence and is adaptable to different campuses and experimental questions.
Big Data Infrastructure at the Crossroads 3 perceptions that much data is either derivative, low quality, or gathered from sources that are inappropriate for open sharing. ▪ Ethical Challenges. The ethical dimensions of big data research remain contested, and some researchers are uncertain about best practices for ethical research conduct. Although IRB guidance is valued, some researchers expressed concerns that IRB regulations are not well adapted to new or evolving research methods. ▪ Support and Training. Researchers tend to favor informal training methods, such as internet tutorials, over formal training in big data methods. While such methods work well for solving immediate problems, they are less well suited to acquiring foundational knowledge, leaving the potential for blind spots in academic research.
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