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Several challenges of today’s higher education were motivations to reconsider the contents and formats of lectures and tutorials and to conceive the classroom communication system Backstage, a social media platform supporting a novel form of large-class teaching. The purpose of this paper is to report on the challenges met, on the novel teaching form and on an evaluation of this teaching form.

The use of Backstage in two courses is evaluated. One of the courses has been specially adapted to promote student participation, the other course has been held in a traditional way. To investigate the usefulness and acceptance of Backstage in the given settings the data collected on Backstage and student responses in surveys are analyzed.

The results indicate that Backstage can foster interactivity and awareness in large-class lectures when used in combination with a teaching format that provides opportunities for and encourges lecture-relevant communication. Furthermore, students appreciated the use of Backstage.

This paper reports on a case study which lacks generalizability. Further studies under controlled conditions and of the learning effectiveness of the approach are still outstanding.

This paper describes an approach fostering a form of Active Learning in large classes. Since large classes are widespread in higher education, the approach has a considerable practical potential.

The paper describes an approach to large class higher education teaching in using social media.

Similar results have not been published so far.

This paper seeks to report on the conception of a novel digital backchannel, Backstage, dedicated to large classes, aiming at empowering not only the audience but also the speaker, at promoting the awareness of both audience and speaker, and at promoting an active participation of students in the lecture. In learning settings with a large and typically passive audience, the goal of Backstage is to foster active participation and facilitate collaboration akin to small‐learning groups.

The authors present the concept of a novel kind of digital backchannel that supports different forms of inter‐student communication via short microblog messages, social evaluation, and ranking of messages by the audience. The backchannel further supports immediate concise feedback to the lecturer of selected and aggregated students' opinions, making it possible to strengthen the lecturer's awareness of students' difficulties.

The concept is the outcome of a joint effort between computer scientists and educational scientists, and unifies technical and usability aspects with educational claims.

The concept combines computer‐mediated communication with elements of social media that not only foster active participation and collaboration among a large and otherwise passive audience, but also provide social means to self‐regulation and management of the backchannel discourse. The design of the backchannel is strongly influenced by findings of educational sciences.

This paper aims to provide an analysis of the MoRe2010 specification while identifying the best practices and techniques of requirements engineering's (RE) body of knowledge that could be applied to improve the quality of this specification.

Considering the scope of MoReq, the authors describe the most relevant related RE techniques and common practices. Next, they evaluate the potential impact of applying these techniques to MoReq2010.

Bearing in mind that MoReq2010 is embodied as a textual document, the paper discusses how the structure and the writing style of this document could be improved by adopting: a pre‐defined structure template; standard‐based guidelines; and well‐defined requirements quality criteria. Also considering that MoReq2010 is the result of a collaborative process, it is also suggested how the authoring process could be improved by using traceability, prioritisation, and other requirements management techniques.

The paper only assesses the MoReq2010 specification as it was made public. Thus, although it is considered that requirements discovery approaches are very important for the quality of any final result, the paper does not discuss the techniques that were eventually used to elicit original stakeholders' needs.

The paper synthesizes several recommendations that, if followed, will have a strong impact on the overall quality of MoReq2010. Furthermore, as it is believed that these recommendations are not disruptive, they can be directly applied against the current version of MoReq2010.

The purpose of this paper is to present the development of an action and assessment framework to make sustainability in German facility management (FM) transparent, measurable and assessable.

The underlying research project’s approach to develop the new action and assessment framework consisted of a three-step methodology: to define and substantiate sustainability in FM, to operationalise and quantify sustainability in FM and to validate the developed system draft through an initial pilot study.

The main result of the presented research project is a set of 24 criteria, organised into the separate areas of environmental, economic and sociocultural quality, as well as the quality of FM organisation and the sustainability of building/contract-specific facility services. The assessment methodology reflects the strategic approach of a plan–do–check–act loop to create a transparent and objective appraisal and a practical action framework.

The outcome of the study is initially only a measurement and assessment framework. To transform the finalised system draft and assessment tool into a certification system, further steps of development are necessary.

The newly developed action and assessment framework is able to cure the blind spot that the relevant players (building owners, users and service providers) suffer from while developing, purchasing and comparing concepts for sustainable FM. The results and practical experiences of its initial pilot study show that this new framework can make the building operation phase and its processes transparent, measurable and assessable.

The guideline is also able to establish a crucial basis for the development of corporate sustainability strategies and sustainability reporting. This is an important step in closing the existing gap in numerous corporate social responsibility reports.

Due to its assessment methodology and the calibration of its criteria, this new action and assessment framework both diversifies and completes the range of existing sustainability certification systems.

The initial observation of this study is the gap of research in the economic application of data spaces in wholesale. With the lowering threshold in using digital technology in innovative services wholesale is confronted with new competition in their main business – the purchase and sale of products in large numbers. Wholesale must advance in their own business creating new digital services for their customers to stay relevant competitors in their markets.

The design follows an explorative, heuristic and interdisciplinary approach (social sciences and in-formation systems) of a multiple case study combining semi-structured, open and participating observation in three case studies. The cases were set in tourism, construction, as well as manufacturing and were each scientifically accompanied for more than one year during the identification of implementation of strategies for data spaces as digital entrepreneurial path.

The study shows four strategies in the implementation of data spaces in traditional wholesale. These data spaces have their focus in (1) the traded commodity with two specificities (1a and 1b), (2) the customer and (3) the cooperation of an ecosystem of companies. Each have their own challenges, chances and specifications like the data sovereignty. These strategies are embedded in the behavior of digital entrepreneurship.

This study accompanied and observed the entrepreneurial strategies of three wholesalers discovering new opportunities enabled via data spaces. These three strategies follow different approaches offering potentials for other wholesalers.

Additive manufacturing (AM) of duplex stainless steels (DSS) is still challenging in terms of simultaneously generating structures with high build quality and adequate functional properties. This study aims to investigate comprehensive process-material-property relationships resulting from both laser-directed energy deposition (DED-LB/M) and laser powder bed fusion (PBF-LB/M) of DSS 1.4462 in as-built (AB) and subsequent heat-treated (HT) states.

Cuboid specimens made of DSS 1.4462 were generated using both AM processes. Porosity and microstructure analyses, magnetic-inductive ferrite and Vickers hardness measurements, tensile and Charpy impacts tests, fracture analysis, critical pitting corrosion temperature measurements and Huey tests were performed on specimens in the AB and HT states.

Correlations between the microstructural aspects and the resulting functional properties (mechanical properties and corrosion resistance) were demonstrated and compared. The mechanical properties of DED-LB/M specimens in both material conditions fulfilled the alloy specifications of 1.4462. Owing to the low ductility and toughness of PBF-LB/M specimens in the AB state, a post-process heat treatment was required to exceed the minimum alloy specification limits. Furthermore, the homogenization heat treatment significantly improved the corrosion resistance of DED- and PBF-processed 1.4462.

This study fulfills the need to investigate the complex relationships between process characteristics and the resulting material properties of additively manufactured DSS.

Vietnam started significant transition policy since 1986 with the introduction of extensive policy of Doi Moi process. The transition from a centrally planned economy toward market-oriented economy has brought some significant results; however Vietnam has until recently stood out as a success story among the transitional economies from a developmental perspective. This requires further investigation of other factors relating to the viability assumption of neoclassical economics. This paper aims to investigate the relationship between corporate governance and firm value in Vietnam, a small and open neo-transitional economy. The result suggests a positive relationship of board size and the value of a firm, but it is not significant. The result also shows a lack of significant negative relationship of other two independent corporate governance variables (shareholder concentration and CEO duality) and the value of a firm. However, to some extent, too high shareholder concentration and CEO duality tend to have negative impacts to the firm value. Other control variables such as price-to-book value ratio and return on total assets have significant and positive impacts on the value of a firm, while the market capitalization has a negative relationship with the value of a firm.

This study empirically explores one of the important channel issues – the relationship between various channel support given to channel partners and the perceived (by managers) goal‐orientation of a firm. Results from an emerging market, India, indicate that perceived orientation towards both profitability and market share is not associated with any of the channel support considered. Growth orientation however is strongly associated with most of the channel support activities – both business (e.g., business advice, pricing and ordering assistance, and personnel training) as well as marketing (advertising support, sales promotional material, and inventory management assistance) oriented activities. In contrast, perceived sales volume orientation is only associated with advertising support and business advice, however, the relationship is negative. These findings have interesting implications for channel management and channel motivation.

Many jurisdictions fine illegal cartels using penalty guidelines that presume an arbitrary 10% overcharge. This article surveys more than 700 published economic studies and judicial decisions that contain 2,041 quantitative estimates of overcharges of hard-core cartels. The primary findings are: (1) the median average long-run overcharge for all types of cartels over all time periods is 23.0%; (2) the mean average is at least 49%; (3) overcharges reached their zenith in 1891–1945 and have trended downward ever since; (4) 6% of the cartel episodes are zero; (5) median overcharges of international-membership cartels are 38% higher than those of domestic cartels; (6) convicted cartels are on average 19% more effective at raising prices as unpunished cartels; (7) bid-rigging conduct displays 25% lower markups than price-fixing cartels; (8) contemporary cartels targeted by class actions have higher overcharges; and (9) when cartels operate at peak effectiveness, price changes are 60–80% higher than the whole episode. Historical penalty guidelines aimed at optimally deterring cartels are likely to be too low.