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Polyethyleneimine (PEI) is an organic polycation used extensively as a gene- and DNA vaccine delivery reagent. Although the DNA targeting activity of PEI is well documented, its immune activating activity is not. We recently reported that PEI has robust mucosal adjuvanticity when administered intranasally with glycoprotein antigens. Here we show that PEI has strong immune activating activity after

During 2011, ÅF launched a service called Green Business Screening (GBS) that provides a situation analysis of the overall environmental performance of a company. The model measures a company’s external and internal environmental integration and evaluates sustainability work through ten categories within a company, where the focus changes from internal categories to external categories. GBS is a g

Nowadays, the number of people infected with HIV/AIDS keeps rising in many countries. How can this risk be managed in society is an issue that gains on relevance. This paper focuses on the topic, how risk is communicated to society in the case of HIV/AIDS in Germany. It also looks at what aspects are emphasized and if different social groups are represented. Two nation-wide campaigns in Germany fr

Neurons are continuously generated from stem cells in the hippocampus and along the lateral ventricles in the adult brain. Neural stem cells can be propagated in vitro in the presence of epidermal growth factor (EGF) or fibroblast growth factor-2. We report here that amphiregulin, a growth factor related to EGF, is a mitogen for adult mouse neural stem cells in vitro and displays potency similar t

Currently, the focus of the group’s research has been on the relationship between room acoustics and voice use in teachers. This work, supported by AFA insurance, examines the prevalence and aetiology of voice disorders in teachers in Southern Sweden, applying a blend of techniques: questionnaires, high-speed laryngeal imaging, acoustic and perceptual voice analysis, and field studies of voice useCurrently, the focus of the group’s research has been on the relationship between room acoustics and voice use in teachers. This work, supported by AFA insurance, examines the prevalence and aetiology of voice disorders in teachers in Southern Sweden, applying a blend of techniques: questionnaires, high-speed laryngeal imaging, acoustic and perceptual voice analysis, and field studies of voice use

This work presents an observer design for grid current and capacitor voltage of voltage source pulse-width modulation (PWM) converters with LCL filter. Theoretical aspects including the mathematical LCL filter system observability, observer placement strategy and practical discretization implementation. It gives insight to mathematical modelling of the line filters dynamics. By the limitations of

For a firm in an open source software (OSS) ecosystem, the requirements engineering (RE) process is rather multifaceted. Apart from its typical RE process, there is a competing process, external to the firm and inherent to the firm’s ecosystem. When trying to impose an agenda in competition with other firms, and aiming to align internal product planning with the ecosystem’s RE process, firms need

In this project, a neutron delivery system for the study of free neutron oscillations at the HIBEAM beamline at the European Spallation Source (ESS) has been developed. The HIBEAM experiment is part of a two-stage program at ESS which will address open questions in physics; specifically the nature of dark matter and the observed asymmetry between matter and antimatter in the Universe. This will be