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This paper aims to measure the trade price impact of a recent regulatory disclosure intervention in municipal securities secondary markets, which required broker-dealers to disclose securities trading information on a near-real-time and continuing basis.

The author analyzes trade price outcomes in the preintervention and postintervention regimes using a suite of time series estimations that give heteroskedasticity-robust standard errors (Prais–Winsten and Cochrain–Orcutt), accommodate higher-order lag structure in the error term (autoregressive integrated moving average) and account for volatility clustering in the time series (generalized autoregressive conditional heteroskedasticity).

Results show that regulatory disclosure intervention significantly improved trade price efficiency in municipal securities secondary markets as daily trade price differential and volatility both declined market-wide after the disclosure intervention.

The sample consists of trades in State of California general obligation bonds; therefore, empirical findings may not be generalizable to other states, local governments and different types of bonds.

The findings highlight voluntary information disclosure as a practical and effective mechanism in disclosure regulation of municipal securities secondary markets.

Only a small body of work exists that examines information disclosure regulation in municipal securities secondary markets; therefore, this paper expands knowledge on the topic and should provide renewed impetus for regulatory efforts aimed at improving the efficiency of municipal capital markets.

This paper aims to advocate that significant human and systems-based capabilities (termed “socio-technical capabilities”) need to be developed in government departments and other public sector organisations to support more effective description of information resources, collections and their context in online environments.

The ideas in this paper draw upon the findings of several action research interventions undertaken within a government department in Victoria in Australia since 2011 as part of a knowledge management initiative. Specific focus is given to the design and development of a new record-centric knowledge curation tool (KCT).

Effective functioning of KCT relies upon the input of well-structured, standards-based metadata used to describe collections, information resources and their context. The central claim is that the move towards standards-based descriptions will fundamentally change the capabilities required to manage, search for and disseminate knowledge and records.

In addition to the capabilities discussed, management of records and knowledge through time requires commitments to stable repository, workflow and administrative systems, and working with contemporary systems involves technical knowledge such as the use of application programming interfaces. These aspects are not discussed here.

The capabilities discussed in this paper are socio-technical in nature. This means there is a requirement to shift current perspectives about who is responsible for managing organisational information as collections.

While some of the concepts discussed will be familiar to information professionals, the paper provides a unique description of how existing archival and recordkeeping practices are being integrated in innovative ways within organisations outside the information management professions.

Mesoscale air quality models are an important tool to forecast and analyse the air quality in regional and urban areas. In recent years an increased interest has been shown by decision makers in these types of software tools. The complexity of such a model has grown exponentially with the increase of computer power. Nowadays, medium workstations can run operational versions of these modelling systems successfully. Presents a complex mesoscale air quality model which has been installed in the Environmental Office of the Madrid community (Spain) in order to forecast accurately the ozone, nitrogen dioxide and sulphur dioxide air concentrations in a 3D domain centred on Madrid city. Describes the challenging scientific matters to be solved in order to develop an operational version of the atmospheric mesoscale numerical pollution model for urban and regional areas (ANA). Some encouraging results have been achieved in the attempts to improve the accuracy of the predictions made by the version already installed.

This study examines the information literacy practices of young video bloggers, focusing on the ways in which they construct their cognitive authority through a health-related information creation process.

This study draws upon socially oriented information literacy research and nexus analysis as its methodological framework. Data, including YouTube videos, theme interviews and video diaries, were collected with three Finnish video bloggers and qualitatively analysed using nexus analytical concepts to describe the central elements of social action.

The study shows that video bloggers employ several information practices during the information creation process, including planning, information-seeking, organization, editing and presentation of information. They construct their cognitive authority in relation to their anticipated audience by grounding it on different types of information: experience-based, embodied and scientific. Trustworthiness, emphasized with authenticity and genuineness, and competence, based on experience, expertise and second-hand information, were recognized as key components of credibility in this context.

This study increases the understanding of the complex ways in which young people create information on social media and influence their audiences. The study contributes to information literacy research by offering insights into the under-researched area of information creation. It is among the few studies to examine cognitive authority construction in the information creation process. The notion of authority as constructed through trustworthiness and competence and grounded on different types of information, can be taken into account in practice by information professionals and educators when planning information literacy instruction.

This paper aims to explore gender and legitimacy in family business succession.

Within the theoretical framework of French pragmatic sociology, the authors conceptualise the family business as the locus where two regimes of engagement are present, generating the co-presence of two orders of worth, namely the domestic and the industrial. Taking a processual approach to entrepreneuring, and using case studies of small enterprises in Italy, this paper explores the case of daughters taking over the family firms.

The paper shows how the daughters’ perceived gender inequality in the succession process is justified and how the justification work and the production of legitimacy are accomplished, shifting from one order of worth to the other.

The value of the contribution consists in pointing to how gender inequality is reproduced and justified inside the family business. The dual regime of engagement is what justifies the reproduction of a specific gender regime within the family business. Moreover, the paper adds a “gender” perspective to French pragmatist sociology.

The purpose of this paper is to present the research into fault detection and isolation (FDI) and evaluation of the reduction of performance after failures occurred in the flight control system (FCS) during its mission operation.

The FDI is accomplished via using the multiple models scheme which is developed based on the Extend Kalman Filter (EKF) algorithm. Towards this objective, the healthy mode of the FCS under different type of failures, including the control surfaces and structural, should be considered. It developed a bank of extended multiple models adaptive estimation (EMMAE) to detect and isolate the above mentioned failures in the FCS. In addition, the performances including the flight envelope, the voyage and endurance in cruising are proposed to reference and evaluate the process of mission, especially for UAV under failure conditions.

The contribution of this paper is to provide the information not only about the failures, but also considering whether the UAV can accomplish the task for the ground station.

The main contribution of this paper is in the areas of the structural and control surface faults researching, which are occurred in the mission procedures and emphasized the identification of those failures' magnitudes. The FDI scheme includes the performance evaluation, while the evaluation obtained through the extensive numerical simulations and saved in the offline database. As a consequence, it is more accurate and less computationally demanding while evaluating the performance.

This paper aims to explore integrating chatbot applications into libraries to improve reference services.

This paper explores the benefits of using chatbots as virtual reference librarians. Emma the Mentor Public Library’s Catbot is used as a case study.

Chatbots cannot replicate the complexity of human interaction (both knowledge and emotional), but these can provide a cost-effective way to answer the majority of routine reference questions and direct users to the appropriate service.

Readers will increase their awareness of how chatbots can streamline the work of the reference department by answering the majority of routine reference questions and freeing library staff to focus on more demanding research and tasks uniquely suited to humans.

Beyond traditional brand endorsement, many celebrities have in recent years decided to launch their own product lines, which may be used to promote their own celebrity brand. Which product categories or social causes match a celebrity’s brand personality? This study aims to investigate the antecedents of celebrity–product degree of fit and willingness to pay (WTP)/make a donation in different scenarios. The manipulation of the scenarios aims to capture the role of celebrity attributes, perceived personality profiles, product involvement and acceptance of social causes.

In total, 335 respondents answered an online questionnaire with a factorial plan corresponding to 20 different matching scenarios: five celebrities/perceived personalities (Emma Watson, Jennifer Lawrence, Kim Kardashian, Natalie Portman and Scarlet Johansson) × four types of branding scenarios (a lipstick for low involvement; a watch for high involvement; an eco-foundation for “high social acceptance” and vodka for “low social acceptance/controversial”).

Scarlett Johansson obtained the highest degree of fit, both for launching her own brand of lipstick or a watch. Kim Kardashian had the best degree of fit for launching her own vodka brand, while Emma Watson’s attributes confirmed that she would be seen as the ideal founder of an eco-foundation. Significant predictors of WTP/make a donation were assessed by multiple linear regression for each type of product.

The paper provides recommendations that may help guide celebrity brand managers through the celebrity–product matching process.

Celebrity branding in relation to social causes is also discussed in this paper.

This study explores a gap found in the literature as it explores the product match-up hypotheses within a celebrity branding context and moreover extends this investigation to social causes and products with different degrees of involvement and social acceptance.

This paper aims to present an iterative approach to creating a collaborative design-and-play skatepark videogame for a children’s museum physics exhibit. Intended for children of 5-8 years old and accompanying adults, this interactive tabletop game encourages players to build a skatepark and then skate through it with a skater character. This case study describes the authors’ design perspective shift to make the game’s possibilities for tinkering more “perceptible.”

This paper presents a case-based design narrative that draws on the project’s iterative playability testing with parent–child dyads and reflections from the design team’s endeavors. This analysis draws on methodological elements adapted from agile game development processes and educational design-based research.

The initial game prototype inhibited the collaborative tinkering of parent–child dyads because it used interface abstractions such as menus, did not orient to the task of tinkering with skatepark design and did not help players understand why their skatepark designs failed. Subsequent game versions adopted blocks as a metaphor for interaction, gave players explicit design goals and models and provided players with more explicit feedback about their skater’s motion.

Museum games that provide tinkering experiences for children are an emerging medium. Central concerns for those designing such games are presenting multiple modes of play for different players and contexts and clearly and quickly communicating the possible activities and interactions. The design approach in this study offers players the opportunity to – at both short and long timescales – take up game-directed challenges or explore the skatepark physics through self-generated goals.

The purpose of this paper is to explore the aptness of “information literacy”, conceptualized as a socially contextualized phenomenon, for analyses of interdisciplinary scholarly communication.

The paper presents a conceptual analysis. Two influential representatives of the social turn in the information literacy literature are taken as starting points: Annemaree Lloyd’s conceptualization of “information literacy practice”, and Jack Andersen’s conceptualization of information literacy as “genre knowledge”. Their positioning of information literacy as a socially contextualized phenomenon – by use of practice theories and rhetorical genre theory, respectively, – is analysed against an illustrative example of interdisciplinary scholarly communication.

Conceptualizations by Lloyd and Andersen explain information literacy as socially contextualized in terms of stable norms and understandings shared in social communities. Their concepts have the potential of explaining changes and innovations in social practices including scholarly communication. If we combine genre-theoretical and practice-theoretical concepts – and accentuate the open-endedness of social practices and of genres – we can enhance the understanding of information literacy in settings of interdisciplinary scholarly communication where the actors involved lack shared conventions and assumptions.

The paper suggests that the fluid features of social contexts should be accounted for in the information literacy literature. By combining genre-theoretical and practice-theoretical concepts in a novel way it offers such an account. It provides a useful framework for understanding the phenomenon of information literacy in interdisciplinary scholarly communication.