How can we understand FOSS collaboration better? Can social issues that emerge be identified and addressed as they happen? Can the community heal itself, become more transparent and inclusive, and promote diversity? We propose a technique to address these issues by quantitative analysis and temporal visualization of social dynamics in FOSS communities. We used social network analysis metrics to...

Three chelating-amino-functionalized lanthanide metal-organic frameworks, Y-DDQ, Dy-DDQ and Eu-DDQ, were synthesized with a flexible dicarboxylate ligand based on quinoxaline (H2DDQ = N, N'-dibenzoic acid-2,3-diaminoquinoxaline). The three-dimensional framework is constructed by the H2DDQ linkers connecting the zigzag ladders, showing a net of sra topology. In the structures, one kind of Ln(III...

How can we understand FOSS collaboration better? Can social issues that emerge be identified and addressed before it is too late? Can the community heal itself, become more transparent and inclusive, and promote diversity? We propose a technique to address these issues by quantitative analysis of social dynamics in FOSS communities. We propose using social network analysis metrics to identify g...

This paper describes the OSSpal project, which is aimed at helping companies, government agencies, and other organizations find high quality free and open source software (FOSS) that meets their needs. OSSpal is a successor to the Business Readiness Rating (BRR), combining quantitative and qualitative evaluation measures for software in various categories. Instead of a purely numeric calculated...

This paper provides an inside look at an international effort to deploy the free and open source (FOSS) Sahana disaster management system in China in the aftermath of the May 2008 earthquake. It describes how a diverse, multidisciplinary team—professional programmers, software engineers, executives from a large global enterprise, students, faculty, and humanitarian IT specialists from a global ...

Many commercial software firms face the possibility that free and open source software (FOSS) will disrupt their markets. A “disruptive innovation” is a new product, service, or business model that initially enters a market as a low-priced, lower-quality alternative to the products of market incumbents but which, through a process of rapid improvement, eventually satisfies mainstream consumers ...

This paper examines the problem of improved fixed-time stability for generalized delayed fractional-order systems (FOSs). As a first step, some conditions are presented in two theorems to verify (F-TS) FOSs by using Lyapunov theory and indefinite functionals, where derivative functions may not exist. Furthermore, corresponding estimated settling time is also provided. Second, results extended s...