263 research outputs found

    Towards An Empirical Theory of Ideologies in the Open Source Software Movement

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    Encompassing a diverse population of developers, non-technical users, organizations, and many other stakeholders, open source software (OSS) development has expanded to broader social movements from the initial product development aims. Ideology, as a coherent system of ideas, offers value commitments and normative implications for any social movement, so does OSS ideology for the open source movement. However, the literature on open source ideology is often fragile, or lacking in empirical evidence. In this paper, we sought to develop a comprehensive empirical theory of ideologies in open source software movement. Following a grounded theory procedure, we collected and analyzed data from 22 semi-structured interviews and 41 video recordings of Open Source Initiative (OSI) board members' public speeches. An empirical theory of OSS ideology emerged in our analysis, with six key categories: membership, norms/values, goals, activities, resources, and positions/group relations; each consists of a number of themes and subthemes. We discussed a subset of carefully selected themes and subthemes in detail based on their theoretical significance. With this ideological lens, we examined the implications and insights into open source development, and shed light on the research into open source as a social-cultural construction in the future

    The mad manifesto

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    The ā€œmad manifestoā€ project is a multidisciplinary mediated investigation into the circumstances by which mad (mentally ill, neurodivergent) or disabled (disclosed, undisclosed) students faced far more precarious circumstances with inadequate support models while attending North American universities during the pandemic teaching era (2020-2023). Using a combination of ā€œemergency remote teachingā€ archival materials such as national student datasets, universal design for learning (UDL) training models, digital classroom teaching experiments, university budgetary releases, educational technology coursewares, and lived experience expertise, this dissertation carefully retells the story of ā€œaccessibilityā€ as it transpired in disabling classroom containers trapped within intentionally underprepared crisis superstructures. Using rhetorical models derived from critical disability studies, mad studies, social work practice, and health humanities, it then suggests radically collaborative UDL teaching practices that may better pre-empt the dynamic needs of dis/abled students whose needs remain direly underserviced. The manifesto leaves the reader with discrete calls to action that foster more critical performances of intersectionally inclusive UDL classrooms for North American mad students, which it calls ā€œmad-positiveā€ facilitation techniques: 1. Seek to untie the bond that regards the digital divide and access as synonyms. 2. UDL practice requires an environment shift that prioritizes change potential. 3. Advocate against the usage of UDL as a for-all keystone of accessibility. 4. Refuse or reduce the use of technologies whose primary mandate is dataveillance. 5. Remind students and allies that university space is a non-neutral affective container. 6. Operationalize the tracking of student suicides on your home campus. 7. Seek out physical & affectual ways that your campus is harming social capital potential. 8. Revise policies and practices that are ability-adjacent imaginings of access. 9. Eliminate sanist and neuroscientific languaging from how you speak about students. 10. Vigilantly interrogate how ā€œnormalā€ and ā€œbelongā€ are socially constructed. 11. Treat lived experience expertise as a gift, not a resource to mine and to spend. 12. Create non-psychiatric routes of receiving accommodation requests in your classroom. 13. Seek out uncomfortable stories of mad exclusion and consider carceral logicā€™s role in it. 14. Center madness in inclusive methodologies designed to explicitly resist carceral logics. 15. Create counteraffectual classrooms that anticipate and interrupt kairotic spatial power. 16. Strive to refuse comfort and immediate intelligibility as mandatory classroom presences. 17. Create pathways that empower cozy space understandings of classroom practice. 18. Vector students wherever possible as dynamic ability constellations in assessment

    A new frontier for the study of the commons:Open-source hardware

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    Ceramic Materials for 3D Printing of Biomimetic Bone Scaffolds ā€“ Current stateā€“ofā€“theā€“art & Future Perspectives

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    Ceramic bone implants have potential properties ideal for long-term implantation applications. On comparison with other materials, ceramic biomaterials have advantages such as biocompatibility, low cost, osteoconductivity, osteoinductivity, corrosion resistance, and can be made into various shapes with desired surface properties. Among transplantation surgeries, bone transplantation is the second largest in the globe after blood transfusion which is an indication for rising hope on the potential treatment options for bone. 3D printing is one of the most advanced fabrication techniques to create customized bone implants using materials such as ceramics and their composites. Developing bone scaffolds that precisely recapitulate the mechanical properties and other biological functions of bone remains a major challenge. However, extensive research on ceramic biomaterials have resulted in the successful 3D printing of complex bony designs with >50% porosity with cortical bone mechanical properties. This review critically analyses the use of various 3D printing techniques to fabricate ceramic bone scaffolds. Further, various natural and synthetic ceramic materials for producing customized ceramic implants are discussed along with potential clinical applications. Finally, a list of companies that offer customized 3D printed implants and the future on clinical translation of 3D printed ceramic bone implants are outlined

    How Early Participation Determines Long-Term Sustained Activity in GitHub Projects?

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    Although the open source model bears many advantages in software development, open source projects are always hard to sustain. Previous research on open source sustainability mainly focuses on projects that have already reached a certain level of maturity (e.g., with communities, releases, and downstream projects). However, limited attention is paid to the development of (sustainable) open source projects in their infancy, and we believe an understanding of early sustainability determinants is crucial for project initiators, incubators, newcomers, and users. In this paper, we aim to explore the relationship between early participation factors and long-term project sustainability. We leverage a novel methodology combining the Blumberg model of performance and machine learning to predict the sustainability of 290,255 GitHub projects. Specificially, we train an XGBoost model based on early participation (first three months of activity) in 290,255 GitHub projects and we interpret the model using LIME. We quantitatively show that early participants have a positive effect on project's future sustained activity if they have prior experience in OSS project incubation and demonstrate concentrated focus and steady commitment. Participation from non-code contributors and detailed contribution documentation also promote project's sustained activity. Compared with individual projects, building a community that consists of more experienced core developers and more active peripheral developers is important for organizational projects. This study provides unique insights into the incubation and recognition of sustainable open source projects, and our interpretable prediction approach can also offer guidance to open source project initiators and newcomers.Comment: The 31st ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering (ESEC/FSE 2023

    University of Windsor Undergraduate Calendar 2023 Spring

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    https://scholar.uwindsor.ca/universitywindsorundergraduatecalendars/1023/thumbnail.jp

    A new frontier for the study of the commons:Open-source hardware

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