Swedish Defence Research Agency

About: Swedish Defence Research Agency is a government organization based out in Stockholm, Sweden. It is known for research contribution in the topics: Radar & Laser. The organization has 1413 authors who have published 2731 publications receiving 56083 citations. The organization is also known as: Totalförsvarets forskningsinstitut.

The angloval tactical military scenario and experimentation environment

Abstract: The Anglova scenario is designed to support experimentation with tactical networking environments and provides node mobility and network connectivity for a realistic battalion-sized military operation consisting of three vignettes, including the deployment of armored vehicles, surveillance of the maritime domain and an urban operation with a naval component. Altogether, the scenario includes 283 nodes and lasts over four hours with detailed mobility and pathloss data for each node. Also included with the scenario are radio models for the different radios that would be part of a heterogeneous network. The scenario has been developed by the NATO IST-124 Research Task Group and released into the public domain in order to facilitate experimentation with networking protocols and algorithms by the community at large. While primarily designed for the Extendable Mobile Ad-hoc Network Emulator (EMANE), the scenario can also be adapted to other experimentation environments.

Recommendations for Next-Generation Ground Magnetic Perturbation Validation

Abstract: Data-model validation of ground magnetic perturbation forecasts, specifically of the time rate of change of surface magnetic field, dB/dt, is a critical task for model development and for mitigatio ...

Local and systemic transcriptome responses to herbivory and jasmonic acid in Populus

Abstract: We used DNA microarrays to examine local and systemic transcriptional responses to herbivory by gypsy moth larvae (GM) and exogenous jasmonic acid (JAtrt) in leaves of Populus nigra L. to identify candidate signaling and defense genes and also to examine primary metabolism, as might relate to tolerance of damage. GM and JAtrt altered expression of over 800 genes, most of which have putative roles in defense signaling, secondary metabolism, and primary metabolism. Additionally, numerous uncharacterized genes responded to herbivory, providing a rich resource for future studies. There was limited overlap (14%) between the responses to GM and JAtrt. GM did, however, result in strong upregulation of genes involved not only in JA biosynthesis but also abscisic acid biosynthesis and other signaling pathways. GM induced known resistance transcripts, including polyphenolic biosynthetic genes, proteinase inhibitors, and amino acid deaminases. According to GOStats pathway level analysis, GM altered primary metabolism, including aromatic amino acid biosynthesis, fatty acid β-oxidation, and carbohydrate and organic acid metabolism. These alterations may be related to increased demands for substrate for secondary metabolites or may serve a tolerance-related role. Responses were more intense locally in treated leaves than in untreated (systemic) leaves and systemic responses were mostly a subset of the genes induced locally. A stronger local response might be needed to cope with localized stresses and wound healing. Since Populus in general and this clone in particular are known for their systemic induced resistance, genes induced both locally and systemically may be the highest quality candidates for resistance.