Electron correlations and single-particle physics in the Integer Quantum Hall Effect

The compressibility of a two-dimensional electron system with spin in a spatially correlated random potential and a quantizing magnetic field is investigated. Electron-electron interaction is treated with the Hartree-Fock method. Numerical results for the influences of interaction and disorder on the compressibility as a function of the particle density and the strength of the magnetic field are presented. Localization-delocalization transitions associated with highly compressible region in the energy spectrum are found at half-integer filling factors. Coulomb blockade effects are found near integer fillings in the regions of low compressibility. Results are compared with recent experiments.Comment: 4 pages, 2 figures, replaced with revised versio

Understanding Double Network Theory and Applying it to Synthesis and Biological Applications

The double network synthesis technique has gained popularity in the past few years as a method to create hydrogels with high strength and toughness, making them ideal for a plethora of applications, such as tissue engineering, drug delivery, and biosensors. The technique revolves around creating a ductile, weak network in the same space as a brittle, strong network. With the development of the synthesis technique, researchers have investigated both why these materials have the reported properties and finding new ways to synthesize them or use them in different applications. In this work, I aim to add on both aspects of this research. First, I investigated how brittle network variables affect the mechanical properties of the double network to expand our knowledge of double network behavior. Next, as part of a collaborative project with the Soman Lab, I helped develop a double network hydrogel that could be synthesized using a novel photolithography setup for making complex 3D microstructures. Lastly, a slug glue protein laden hydrogel was developed in the hopes of making a novel double network for the purposes of investigating the effects of glue protein and metal ion interactions

The State of Sustainable Research Software: Results from the Workshop on Sustainable Software for Science: Practice and Experiences (WSSSPE5.1)

This article summarizes motivations, organization, and activities of the Workshop on Sustainable Software for Science: Practice and Experiences (WSSSPE5.1) held in Manchester, UK in September 2017. The WSSSPE series promotes sustainable research software by positively impacting principles and best practices, careers, learning, and credit. This article discusses the Code of Conduct, idea papers, position papers, experience papers, demos, and lightning talks presented during the workshop. The main part of the article discusses the speed-blogging groups that formed during the meeting, along with the outputs of those sessions

Forschungssoftware in Bibliotheken

Software is increasingly acknowledged as valid research output. Academic libraries adapt to this change to become research software-ready. Software publication and citation are key areas in this endeavor. We present and discuss the current state of the practice of software publication and software citation, and discuss four areas of activity that libraries engage in: (1) technical infrastructure, (2) training and support, (3) software management and curation, (4) policies.Software wird zunehmend als gültiges Forschungsergebnis anerkannt. Wissenschaftliche Bibliotheken passen sich diesem Wandel an, um für Forschungssoftware gerüstet zu sein. Softwarepublikation und -zitierung sind hierbei Schlüsselbereiche. Wir präsentieren und diskutieren hier den aktuellen Praxisstand und heben vier Bereiche hervor, in denen Bibliotheken aktiv werden können, um für Forschungssoftware gerüstet zu sein: (1) technische Infrastruktur, (2) Schulung und Support, (3) Management und Kuratierung von Software, (4) Richtlinien.Peer Reviewe