21978 research outputs found
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German Newspaper Coverage of Climate Change or Global Warming, 2004-2025 - July 2025
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
Norwegian Newspaper Coverage of Climate Change or Global Warming, 2000-2025 - July 2025
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
Russian Newspaper Coverage of Climate Change or Global Warming, 2000-2025 - July 2025
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
World Newspaper Coverage of Climate Change or Global Warming, 2004-2025 - July 2025
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
Fit for Purpose? How Today’s Commercial Digital Platforms Subvert Key Goals of Public Education
Full text linkDigital educational platforms have become ubiquitous in American classrooms, with tools like Google Workspace for Education, Kahoot!, Zearn, Khan Academy, and many others now structuring curriculum, instruction, collaboration, assessment, and communication. This policy brief highlights how these platforms are not neutral “tools” but complex ecosystems shaped by technical architectures, commercial imperatives, and political-economic interests. While educators tend to view them as aids for instruction, platforms extract and monetize data, linking schools into broader markets of advertisers and data brokers. For educators and policymakers, this reality calls for an ecological perspective that asks not only how platforms function in classrooms but also whose interests they serve, what values they embed, and whether nondigital means might better achieve educational goals. To guard against overreliance on industry marketing and the amplified risks of emerging AI systems, schools must articulate their own needs and values first, adopt platforms selectively, and seek policy safeguards that protect their educational mission.</p
Middle Eastern Newspaper Coverage of Climate Change or Global Warming, 2004-2025 - September 2025
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
New Zealand Newspaper Coverage of Climate Change or Global Warming, 2000-2025 - October 2025
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
World Radio Coverage of Climate Change or Global Warming, 2000-2025 - April 2025
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
An Adaptive Enriched Immersogeometric Analysis Framework for Multi-Material Problems
Full text linkCompared to standard finite element (FE) methods, immersed FE methods bypass the difficult and time-consuming task of generating body-fitted meshes and facilitate the convenient analysis of complex geometries, such as those originating from CT scans or in topology optimized designs. Immersed FE methods allow interfaces to be embedded into elements, resulting in a set of numerical challenges. Given their promise to eliminate the majority of time cost in a typical design-through-analysis process, they have gained significant attention in the academic world, and a wide range of effective methods to resolve these numerical challenges have been developed. However, the adoption of immersed FE methods is lacking outside of the research community, mostly due to unresolved challenges related to their difficult implementation into code, a lack of access to ready-to-use general immersed FE solvers, and their oftentimes poor computational efficiency and robustness when compared to readily available FE packages. This thesis addresses these challenges.
This work demonstrates how the cohesive application of the methods addressing the numerical challenges can be distilled into a preprocessing problem. The algorithms and data structures comprising a modular preprocessing framework, applicable to a wide range of problems, are discussed in depth, emphasizing how robustness, computational efficiency, and parallel scalability are achieved.
As an alternative implementation path, the interpolation-based approach is introduced. In it, the basis functions of an unfitted background mesh are interpolated by the basis associated with an automatically generated body-fitted foreground mesh that is subject to minimal quality constraints. The background basis information is encoded in extraction operators, which are applied outside of the assembly routine, thereby enabling a non-invasive reuse of existing FE software for immersed analysis.
To achieve computational efficiency within the immersed FE framework, adaptive refined truncated hierarchical B-spline bases are employed.This work introduces the definition of a generalized version of the truncated hierarchical B-spline basis, which extends its use to multi-material problems with immersed discretizations requiring enrichment.
The capabilities of the preprocessing framework and the interpolation-based approach are demonstrated with problems involving complex and evolving multi-material geometries using multiple adaptively refined B-spline discretizations.</p
Design and Optimization of Protein-Polymer Systems for Enhanced Biocompatibility and Biocatalysis
Full text linkProtein-polymer systems comprise varied configurations and numerous types of protein-polymer and polymer-polymer interactions. Configurations explored in this work include biomaterial coatings, soluble enzyme-polymer conjugates, and enzyme immobilization supports. The broad, unifying goal of each of these applications is to improve protein stability. There currently exists a myriad of monomers from which varied polymer compositions can be built. Each monomer can be used to introduce impactful chemistries that influence the behavior of not only the polymer, but also the proteins that interact with these materials. A major challenge in the development of these systems is that these interactions aren’t always well understood, and different or more challenging environmental conditions like temperature and pH provide additional complexity. This work endeavors to expand our understanding of these interactions as they relate to various systems and environments.
Herein we explore hydrophilic non-ionic polymer brushes as new anti-fouling biomaterial coatings. These materials are of interest because they have a low charge density but are strongly hydrophilic. These properties enable comparisons to heteropolymer brushes composed of amphiphilic and zwitterionic monomers and fully zwitterionic homopolymer brushes. In this comparison we evaluate the importance of using heteropolymers versus homopolymers and the influence of charge density as these parameters relate to anti-fouling properties. We also identify and explore an activity-stability tradeoff observed for a soluble enzyme-polymer conjugate. Specifically, we report on the enhanced stability but reduced activity of zwitterionic based enzyme-polymer conjugates. This tradeoff was also found to be ionic strength sensitive, indicating the importance of considering electrostatic interactions in addition to hydrophobic/hydrophilic interactions. Next, we employed a high-throughput screening methodology to identify new and stabilizing enzyme immobilization supports that would retain enzyme activity at high temperatures and acidic pH. Our findings demonstrated that at high temperatures, enzyme structural stability was more influential than local pH effects induced by polymer composition. Furthermore, we identified activity and stability trends that suggested enzyme-polymer charge-pairing interactions may have caused the enhanced thermal stability observed on these immobilization supports. Finally, we investigated these high temperature and acidic pH stabilization mechanisms using single molecule Förster resonance energy transfer combined with total internal reflection fluorescence microscopy.
Ultimately this work provides insights useful to the development of biocompatible polymer coatings, enzyme-polymer conjugates, and polymeric enzyme immobilization supports. These insights may be used to enhance and optimize these systems for improved biocompatibility, and biocatalysis.</p
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