Designing mobile language learning with Arabic speaking migrants

Learning the language is crucial to be included in a new society. For migrants, the smartphone is a commonly used device for staying connected, which could also be used for language learning purposes. This research concerns mobile literacy with newly arrived Arabic speaking migrants to Sweden and the use of mobile learning as a means for integration. The purpose is to investigate how mobile technology can be designed to support migrants\u27 language learning process. The research concerns technology development where versions of a mobile application (app) are explored from a bottom-up perspective with Arabic speaking migrants. A qualitative method approach is applied, built on design principles focusing on the construction of situated artefacts and evaluation of performance. The results show that intuitive design and engaging content with connections to everyday social situations play important parts in sustaining motivation to engage with an app

OSAMOAL: optimized simulations by adapted models using asymptotic limits

We propose in this work to address the problem of model adaptation, dedicated to hyper- bolic models with relaxation and to their parabolic limit. The goal is to replace a hyperbolic system of balance laws (the so-called fine model) by its parabolic limit (the so-called coarse model), in delimited parts of the computational domain. Our method is based on the construction of asymptotic preserving schemes and on interfacial coupling methods between hyperbolic and parabolic models. We study in parallel the cases of the Goldstein-Taylor model and of the p-system with friction

Coal-Seq III Consortium: Advancing the Science of CO2 Sequestration in Coal Seam and Gas Shale Reservoirs

AbstractCoal-Seq III is a 3-year public-private consortium primarily sponsored by the U.S. Department of Energy (DOE) and performed by Advanced Resources International (ARI) in partnership with Southern Illinois University (SIU), Oklahoma State University (OSU), and Higgs-Palmer Technologies. The consortium has a primary objective to advance scientifically-based simulation capabilities for CO2 storage in coalbed methane and gas shale reservoirs in the presence of multi- component gases and other fluids in order to improve how current simulation tools model the effects of high pressure CO2 on the integrity and swelling/shrinkage of the coal matrix and its permeability as well as proper algorithms for the adsorptive capability of wet coals.To accomplish this goal, coal samples from various U.S. basins are being used in the laboratory to study the potential existence of a change in mechanical properties for the coal (weakening/failure) under high-pressure CO2 injection and depletion. Laboratory experiments also include the investigation of coal shrinkage (during production) and swelling (during injection) under field replicated conditions. In addition; new improved adsorption models are being developed to realistically simulate sequestration in wet coal and gas shale reservoirs. Based on the laboratory and theoretical results, three new geochemical and geo-mechanical modules will be developed. Finally, the feasibility of storing CO2 in shale reservoirs will be studied using actual datasets, leveraging the basic science work developed by this effort.To do so, the Coal-Seq III Consortium work will calibrate the accuracy of these modules with data from large-scale field studies, such as the DOE sponsored CO2 injection demonstration within the San Juan basin's Fruitland coal, and incorporate these modules into an advanced, coupled simulation model. The end result will be improved tools that are informed by Coal-Seq laboratory efforts and that have been tuned with field injection data. This paper will describe the efforts to date in meeting these research objectives

Praxis development in relation to gang conflicts in Copenhagen, Denmark

The primary question addressed in this article is how to understand and produce praxisdevelopment in the complex and contentious field of street communities of young marginalizedmen, an area highlighted almost on a daily basis in the Danish media under headlines with termssuch as ‘foreigner problems’, ‘ghetto problems’, ‘gang conflicts’ and ‘gang war’. Since 2009,activists and professionals related to this field have gathered at Grundtvigs Højskole where theyinitiated and inspired community building activities in relation to the recent gang conflicts in theCopenhagen area of Denmark. The article explores these practices and changes, including someof the communal initiatives arising in response to the escalating gang conflicts. The conflict andcommunity building activities are contextualized in terms of broader tendencies and changes inDanish society, from enduring struggles with ethnic othering of young minority men since the late1990s, to other societal changes escalating ‘gang-conflicts’ to ‘gang-war’. The article examineshow these changes produce new dynamics, tensions and dimensions of binary thinking, which inturn creates new dilemmas in the everyday lives of the people involved in social work practice,community building activities and praxis research

A new fasciocutaneous flap model identifies a critical role for endothelial Notch signaling in wound healing and flap survival.

Flap surgery is a common treatment for severe wounds and a major determinant of surgical outcome. Flap survival and healing depends on adaptation of the local flap vasculature. Using a novel and defined model of fasciocutaneous flap surgery, we demonstrate that the Notch ligand Delta-like 1 (Dll1), expressed in vascular endothelial cells, regulates flap arteriogenesis, inflammation and flap survival. Utilizing the stereotyped anatomy of dorsal skin arteries, ligation of the major vascular pedicle induced strong collateral vessel development by end-to-end anastomosis in wildtype mice, which supported flap perfusion recovery over time. In mice with heterozygous deletion of Dll1, collateral vessel formation was strongly impaired, resulting in aberrant vascularization and subsequent necrosis of the tissue. Furthermore, Dll1 deficient mice showed severe inflammation in the flap dominated by monocytes and macrophages. This process is controlled by endothelial Dll1 in vivo, since the results were recapitulated in mice with endothelial-specific deletion of Dll1. Thus, our model provides a platform to study vascular adaptation to flap surgery and molecular and cellular regulators influencing flap healing and survival