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Experimental Characterization of Circular Polarization Selective Structures Using Linearly Single-Polarized Antennas

Abstract: We present a technique for performing high-accuracy measurements of the transmission and reflection properties in circular polarizations (CPs) of a test panel. Using linearly polarized antennas and measuring at four different antenna orientations, all with a relative rotation of 45°, an efficient normalization of each scattering component can be utilized. This method achieves a high sign

Comparative functional analysis of the Caenorhabditis elegans and Drosophila melanogaster proteomes

The nematode Caenorhabditis elegans is a popular model system in genetics, not least because a majority of human disease genes are conserved in C. elegans. To generate a comprehensive inventory of its expressed proteome, we performed extensive shotgun proteomics and identified more than half of all predicted C. elegans proteins. This allowed us to confirm and extend genome annotations, characteriz

Experimental investigation of methanol compression ignition in a high compression ratio HD engine using a Box-Behnken design

Methanol is an alternative fuel offering a lower well-to-wheel CO2 emission as well as a higher efficiency, given that the fuel is derived from biomass. In addition to reduced CO2, methanol does not emit soot particles when combusted which is a great advantage when attempting to reduce NOX levels due to the effectively non-existing NOX-soot trade-off. The engine setup used was a Scania D13 engine

Karlfeldt efter Karlfeldt

Karlfeldtforskningen beskrivs, och vilka nya vägar kan den gå. Två föreslås: dels forskning om Karlfeldts positioner i den litterära offentligheten, dels forskning om Karlfeldts egendomliga bildspråk (Jean Paul, C F Dahlgren ) som är en del av en svensk tradition (Tegner, Tranströmer)

People, lakes and seashores : Studies from the Baltic Sea basin and adjacent areas in the early and Mid-Holocene

During the Early and Mid-Holocene significant changes in the ecology and socio-cultural spheres occurred around the Baltic Sea. Because of the underlying climatic changes and thus environmental alterations, the area was the scene for various cultural developments during the period under investigation. In the course of the melting of the glaciers at the end of the last Ice Age, isostatic and eustat

Psychosocial behaviour management programme for home-dwelling people with dementia : A cluster-randomized controlled trial

Little is known about the effectiveness of a psychosocial behaviour management programme on home-dwelling people with dementia. We developed a Behaviour Analytics & Support Enhancement (BASE) programme for care managers and professional caregivers of home care services in Japan. We investigated the effects of BASE on challenging behaviour of home-dwelling people with dementia. Methods: A clust

On cross‐linguistic variation and measures of linguistic complexity in learner texts: Italian, French and English

The paper investigates possible effects of cross-linguistic variation on measures of syntactic complexity in 60 texts from learners of L2 English, L3 French and L4 Italian at CEFR level A and CEFR level B. A previous study by Gyllstad et al. (2014) showed significant differences between proficiency levels for two length measures of complexity in English and French, but not in Italian. In this papeThe paper investigates possible effects of cross‐linguistic variation on measures of syntactic complexity in 60 texts from Swedish L1 learners of English, French and Italian as foreign languages at CEFR level A and CEFR level B. A previous study on the same learners and texts, showed significant differences between proficiency levels for two length measures of complexity in English and French, but

Effect of alteplase on the CT hyperdense artery sign and outcome after ischemic stroke

OBJECTIVE: To investigate whether the location and extent of the CT hyperdense artery sign (HAS) at presentation affects response to IV alteplase in the randomized controlled Third International Stroke Trial (IST-3).METHODS: All prerandomization and follow-up (24-48 hours) CT brain scans in IST-3 were assessed for HAS presence, location, and extent by masked raters. We assessed whether HAS grew, p

Go with the flow : visually mediated flight control in bumblebees

För ungefär 350 miljoner år sedan utvecklade de första insekterna förmågan att flyga och har sedan dess dominerat våra terrestra miljöer. Trots sina pyttesmå hjärnor och avsaknad av avancerade kontrollinstrument så lyckas flygande insekter på många vis utkonkurrera modern flygteknik. Humlor och bin kan till exempel leta upp en födokälla långt ifrån sitt bo, återvända hem igen och sedan upprepa denDespite their small brains and tiny eyes, flying insects are capable of detecting and avoiding collisions with moving obstacles, and with remarkable precision they navigate through environments of different complexity. For this thesis, I have investigated how bumblebees use the pattern of apparent image motion that is generated in their eyes as they move through the world (known as optic flow), in

The coexistence of psychiatric and gastrointestinal problems in children with restrictive eating in a nationwide Swedish twin study

Background: Restrictive eating problems are rare in children but overrepresented in those with neurodevelopmental problems. Comorbidities decrease wellbeing in affected individuals but research in the area is relatively scarce. This study describes phenotypes, regarding psychiatric and gastrointestinal comorbidities, in children with restrictive eating problems. Methods: A parental telephone inter