How Many Penguins Can Hide Under an Umbrella? An Examination of How Lay Conceptions Conceal the Contexts of Free/Open Source Software

This paper examines the attention put by IS researchers to the various contexts of the Free/Open Source Software (FOSS) phenomenon. Following a selective review of the IS literature on FOSS, we highlight some of the pitfalls that FOSS research encounter in its quest for theoretical progress. We raise awareness of these pitfalls\u27 consequences for how we propose, test, and falsify theories about the FOSS phenomenon. We conclude by proposing an agenda for future research

IT Industry Analysts: A Review and Two Research Agendas

The firms involved in analyzing the information technology industry (IT), such as Gartner, Forrester, and IDC, are reputed to have a major impact on both IT vendors and IT adopters through their influence over how IT actually is acquired and used. The purpose of this article is to take stock of the nascent stream of research on industry analysts that has developed in recent years in order to shed some light on the IT analysis industry―to analyze the IT industry analysts, if you will. Using an organizational field-level lens, we look at the business models of the firms that operate in this industry. We examine the main institutional work that the analysts in these firms perform as status arbiters, institutional carriers, network brokers, IT fashion setters, and knowledge entrepreneurs. We examine the competitive and institutional pressures faced by analysts in these firms. Finally, we propose two research agendas: (1) to study the impact that this industry has had, and could continue to have, on the IT industry as a whole, and (2) to study how the relationship between the academic information systems community and the IT analysis industry might co-evolve

Understanding the Internet Pitchfork Mob: Internal Revolutionary Activity in Self-Regulated Online Communities

Research into organised online protest typically focuses on how digital activism empowers social movements. But what if an online community is rebelling against its platform owners? This study seeks to identify the trajectory of internally focused revolutionary activity in self-regulated online communities. Based on an analysis of three cases (Reddit, 2015; Mozilla, 2014, and Skyrim, 2015) it identifies six stages of revolution: incident, reaction, mobilization, action, negotiation, and a return to ‘normality’ with a new power equilibrium. For each stage, key events, relations between the community and platform managers, and the ways in which power is enacted through online means, are identified. This preliminary model for online community revolution offers potential for further work that has diagnostic, predictive and ameliorative value. Relations with online communities are of significant value in an era in which many platform-related business models are reliant on voluntary contributions of self-regulating online communities

Defining Knowledge Management System Risk

Knowledge Management Systems are becoming widely used in organizations. Early successes are encouraging but these systems entail their own set of challenges. This paper proposes a measure of risk exposure for knowledge management system use. Five undesirable outcomes and thirty two risk factors were identified. These elements were extracted from the literature and from cases, and validated using a Delphi exercise. This measure enables knowledge managers to assess the level of risk supported by their organization and to take the appropriate action to manage their risk exposure

The Tangled Web: Studying Online Fake News

Fake news has become a ubiquitous and extremely worrying phenomenon, capturing the attention of academics, governments, businesses, media, and the general public. Despite this notoriety, many questions remain to be answered about the generation, diffusion, consumption, and impacts of fake news that are spread through social media and online communities. A nascent body of IS research is emerging that addresses some of these questions. In this panel, we aim to motivate further IS research and produce an agenda by highlighting some of the important issues that need to be discussed with regard to fake news. We examine how IS scholarship can address these issues by drawing on its existing body of knowledge as well as considering less-studied but potentially fruitful areas of research

Critical Mass in Inter-Organizational Platforms

This paper examines how the critical mass challenge manifests itself during inter-organizational platform development. In previous research, critical mass is treated as an issue that occurs after platform launch. Strategies proposed, such as tactful pricing, opening the platform, user onboarding, and side-switching assume the platform to have already been launched. They may not work well in conditions where the platform is still under development. Over a two-and-a-half-year time period, this study traced the development of a data platform in a revelatory case within the New Zealand tourism sector. It revealed five critical mass issues faced by the platform sponsor in phases of development that occur before platform launch: (i) attracting initial interest, (ii) aligning heterogenous goals, (iii) sustaining commitment to the project (iv), negotiating architecture design, and (v) sustaining commitment to implementation. These findings provide a foundation for problematizing critical mass theory and its boundary conditions in inter-organizational platform development

Pest categorisation of Puccinia pittieriana

The Panelon Plant Health performed a pest categorisation of Pucciniapittieriana, the causal agent of common rust of potato, for the EU. The pathogen is a single taxonomic entity and reliable methods exist for its detection and identification. Cultivated potato (Solanumtuberosum) and tomato (Solanumlycopersicum) are the main hosts of P.pittieriana. Some wild solanaceous plants can also be affected by the pathogen. P.pittieriana is present in countries of South and Central America (most commonly at elevations of 3,000-4,000m), but uncertainty exists about its presence in Bolivia and Paraguay. The pathogen is not known to occur in the EU and is listed in Annex IIAI of Directive 2000/29/EC. P.pittieriana could potentially enter the EU mainly on living host plants and infested soil attached to potato tubers originated in infested areas. Potato and tomato crops are widely distributed in the EU and the prevailing climatic conditions, at least in part of the risk assessment area, are suitable for the establishment and spread of the pathogen. There is uncertainty on the yield/quality losses currently caused by the pathogen in the infested areas. Nevertheless, it is expected that the introduction and spread of P.pittieriana in the EU could impact potato and tomato production, although the magnitude is unknown. Cultural practices and chemical measures may reduce the inoculum sources but they cannot eliminate the pathogen. Phytosanitary measures are available to mitigate the risk of introduction and spread of the pathogen in the EU. P.pittieriana meets all the criteria assessed by EFSA for consideration as a potential Union quarantine pest. As P.pittieriana is not known to occur in the EU, this criterion assessed by EFSA to consider it as a Union regulated non-quarantine pest is not met

Pest categorisation of Venturia nashicola

The Panelon Plant Health performed a pest categorisation of Venturianashicola, the causal agent of Asian pear scab, for the European Union (EU). The pathogen is a well-defined, distinguishable fungal species affecting Pyruspyrifolia var. culta, P.ussuriensis and P.bretschneideri in Asian countries. P.communis (European pear) is not a host of V.nashicola, but the host status of other Pyrus species is unclear. V.nashicola is not known to occur in the EU. It is listed in Annex IIAI of Directive 2000/29/EC. The pathogen could potentially enter the EU on host plants for planting and fruit originated in infested countries. There are no climatic factors limiting the potential establishment and spread of the pathogen in the EU, as its epidemiology is similar to those of Venturiainaequalis (apple scab) and Venturiapyrina (European pear scab), which are well-established in the EU. The hosts are present in the EU, but no data were found on their abundance and distribution. In the infested areas, V.nashicola causes premature leaf and fruit drop and fruit distortion resulting in considerable yield/quality losses. The introduction of the pathogen into the EU could cause yield/quality losses and environmental consequences because of the additional fungicide sprays for disease control. Cultural practices and chemical measures applied in the infested areas reduce the inoculum sources but they cannot eliminate the pathogen. Phytosanitary measures are available to mitigate the risk of introduction and spread of the pathogen in the EU. All criteria assessed by EFSA for consideration as a potential Union quarantine pest are met. As V.nashicola is not known to occur in the EU, this criterion assessed by EFSA to consider it as a Union regulated non-quarantine pest is not met

Pest categorisation of Botryosphaeria kuwatsukai

The Panel on Plant Health performed a pest categorisation of Botryosphaeria kuwatsukai, the causal agent of fruit rot and wart bark on apple and pear, for the EU. The pathogen, which was recently characterised, is a well-defined fungal species affecting mainly Pyrus pyrifolia (Japanese pear), although Pyrus communis (European pear) and apples (Malus domestica) can also be affected. The host status of other plant species reported in the literature, i.e. Cydonia oblonga, Chaenomeles japonica, Malus micromalus, Vitis vinifera and Prunus spp., is unclear. B. kuwatsukai is currently present in Japan, China, Korea, Taiwan and the USA, and uncertainty exists about its presence in other areas, where the disease has been associated with other Botryosphaeria spp. The pathogen is not known to occur in the EU and is listed in Annex IIAI of Directive 2000/29/EC. It could potentially enter the EU on host plants for planting and fruit originated in infested countries. Climatic conditions in the EU are suitable for the establishment and spread of the pathogen, as its epidemiology is similar to that of other Botryosphaeria spp. present in the EU. Pears and apples are widely distributed in the EU. In the infested areas, B. kuwatsukai causes branch dieback and fruit rot resulting in yield/quality losses. Its introduction and spread in the EU could impact pear and apple production, although the magnitude is unknown. Cultural practices and chemical measures may reduce the inoculum sources but cannot eliminate the pathogen. Phytosanitary measures are available to mitigate the risk of introduction and spread of the pathogen in the EU. B. kuwatsukai meets all criteria assessed by EFSA for consideration as a potential Union quarantine pest. As B. kuwatsukai is not known to occur in the EU, this criterion to consider it as a Union regulated non-quarantine pest is not met

Deciphering the Structure, Growth and Assembly of Amyloid-Like Fibrils Using High-Speed Atomic Force Microscopy

Formation of fibrillar structures of proteins that deposit into aggregates has been suggested to play a key role in various neurodegenerative diseases. However mechanisms and dynamics of fibrillization remains to be elucidated. We have previously established that lithostathine, a protein overexpressed in the pre-clinical stages of Alzheimer's disease and present in the pathognomonic lesions associated with this disease, form fibrillar aggregates after its N-terminal truncation. In this paper we visualized, using high-speed atomic force microscopy (HS-AFM), growth and assembly of lithostathine protofibrils under physiological conditions with a time resolution of one image/s. Real-time imaging highlighted a very high velocity of elongation. Formation of fibrils via protofibril lateral association and stacking was also monitored revealing a zipper-like mechanism of association. We also demonstrate that, like other amyloid ß peptides, two lithostathine protofibrils can associate to form helical fibrils. Another striking finding is the propensity of the end of a growing protofibril or fibril to associate with the edge of a second fibril, forming false branching point. Taken together this study provides new clues about fibrillization mechanism of amyloid proteins