University physics students' use of models in explanations of phenomena involving interaction between metals and electromagnetic radiation

We examine third year university physics students' use of models when explaining familiar phenomena involving interaction between metals and electromagnetic radiation. A range of scientific models are available to explain these phenomena. However, explanations of these phenomena tend not to be used as exemplars of scientific models within undergraduate physics education. The student sample is drawn from six universities in UK and Sweden. These students have difficulties in providing appropriate explanations for the phenomena. Many students draw upon the Bohr model of isolated atoms when explaining light emission of metals. The students tend not to recognize that atoms in metals interact to give an electronic structure very different from that of the isolated atom. Few students use a single model consistently in their explanations of these related phenomena. Rather, students' use of models is sensitive to the context in which each phenomenon is presented to them.     

Having students create short video clips to help transition from naïve conceptions about mechanics to true Newtonian physics

Most students enter their first university physics course with a system of beliefs and intuitions which are often inconsistent with the Newtonian frame of reference. This article presents an experiment of collaborative learning aiming at helping first-year students in an engineering programme to transition from their naïve intuition about dynamics to the Newtonian way of thinking. In a first activity, students were asked to critically analyse the contents of two video clips from the point of view of Newtonian mechanics. In a second activity, students had to design and realise their own video clip to illustrate a given aspect of Newtonian mechanics. The preparation of the scenario for the second activity required looking up and assimilating scientific knowledge. The efficiency of the activity was assessed on an enhanced version of the statistical analysis method proposed by Hestenes and Halloun, which relies on a pre-test and a post-test to measure individual learning.     

Pricing decisions of consumer innovators

Increasing numbers of consumers who engage in the development of new products are selling their innovations on online marketplaces. We contribute to the scarce research on the commercialization activities of consumer innovators by comparing the consumers’ price decisions with the pricing of firms. Our predictions build on the baseline assumption that the price decisions of consumers are influenced by the same motivations that originally prompt them to innovate. We use a sequential mixed-method approach with a quantitative main study and follow-up qualitative research. The quantitative results draw on a matched-pair analysis of 4,242 computer games released on the online game platform Steam. We find that consumer innovators charge lower prices than firms for comparable games and that consumers and firms show different inclinations in aligning prices with the games’ development costs and perceived quality. The subsequent interview study with 29 hobbyist game developers provides clear support for the motivational explanations of consumers’ pricing decisions. The findings contribute to research on consumer innovation marketing and nascent entrepreneurship. They also improve the understanding of welfare effects resulting from increasing commercial activities of consumers.     

Effectiveness of a liaison program in meeting information needs of college of pharmacy faculty

This article describes the creation and implementation of focus groups to evaluate the effectiveness of a health sciences library's liaison program of the College of Pharmacy faculty and to better understand the faculty's information needs in order to design new and improved library services. The liaison services support the teaching and research needs of faculty and students through literature research, classroom teaching, and an extensive library collection of pharmacy literature. Focus group results demonstrated a high level of satisfaction with library liaison services and collections. Opportunities exist for expanded interaction with graduate students and greater marketing of library services to increase faculty awareness of specific library programs.     

Algorithms: avoiding the implementation of institutional biases

ABSTRACT

Computer algorithms, the logic and code that power automated decision-making programs, increasingly dominate many aspects of modern society. There are already many examples of institutional biases – including ideological bias, racism, sexism, ableism – being solidified in algorithms, causing harm to already underprivileged populations. This article explores library-specific and society-wide examples as well as efforts to prevent the implementation of these biases in the future.     

A Case of TMI (Too Much Information): Improving the Usability of the Library's Website through the Implementation of LibAnswers and the A–Z Database List (LibGuides v2)

ABSTRACT

The Michigan State University (MSU) Libraries' Website has a case of TMI: too much information organized by librarians for librarians. Finding relevant information about various library services, including the 24/7 Distance Learning Support Line, and access points to scholarly resources is often cumbersome, and given the limited time and staffing available in Web Services, it was impractical to embark on a comprehensive Website redesign. Instead, the implementation of two systems, LibAnswers and the A–Z Database List in LibGuides v2 CMS, served as a means for addressing the TMI issue and improving the usability of the MSU Libraries' Website. This case study will map the MSU Libraries' experience of implementing the LibAnswers and the A–Z Database List from early vision to launching the end product, as a means for resolving the “too much information” issue and improving the usability of the library's Website.