| 1. |
- Breed, Martin F., et al.
(author)
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Mating system and early viability resistance to habitat fragmentation in a bird-pollinated eucalypt
- 2015
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In: Heredity. - : Springer Science and Business Media LLC. - 0018-067X .- 1365-2540. ; 115:2, s. 100-107
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Journal article (peer-reviewed)abstract
- Habitat fragmentation has been shown to disrupt ecosystem processes such as plant-pollinator mutualisms. Consequently, mating patterns in remnant tree populations are expected to shift towards increased inbreeding and reduced pollen diversity, with fitness consequences for future generations. However, mating patterns and phenotypic assessments of open-pollinated progeny have rarely been combined in a single study. Here, we collected seeds from 37 Eucalyptus incrassata trees from contrasting stand densities following recent clearance in a single South Australian population (intact woodland = 12.6 trees ha(-1); isolated pasture = 1.7 trees ha(-1); population area = 10 km(2)). 649 progeny from these trees were genotyped at eight microsatellite loci. We estimated genetic diversity, spatial genetic structure, indirect contemporary pollen flow and mating patterns for adults older than the clearance events and open-pollinated progeny sired post-clearance. A proxy of early stage progeny viability was assessed in a common garden experiment. Density had no impact on mating patterns, adult and progeny genetic diversity or progeny growth, but was associated with increased mean pollen dispersal. Weak spatial genetic structure among adults suggests high historical gene flow. We observed preliminary evidence for inbreeding depression related to stress caused by fungal infection, but which was not associated with density. Higher observed heterozygosities in adults compared with progeny may relate to weak selection on progeny and lifetime-accumulated mortality of inbred adults. E. incrassata appears to be resistant to the negative mating pattern and fitness changes expected within fragmented landscapes. This pattern is likely explained by strong outcrossing and regular long-distance pollen flow.
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| 2. |
- From, Tuuli, et al.
(author)
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Inclusion and democratization in Nordic basic schools of the 1970’s with a life history approach
- 2023
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Conference paper (peer-reviewed)abstract
- This paper presents a subproject that aims to examine inclusion and democratization in Nordic basic schools by adopting a life history approach. The focus is on the students of the 70’s and their narratives about school experiences as they talk about their memories and experiences from the standpoint of the present. We ask how the basic school spaces provided opportunities for pupils to engage in social relations with peers with diverse social backgrounds, and what the perceived long-term implications are of the relations established in school.The theoretical framework of this study is grounded on the concepts of space, place and time, seeking analytical connections between physical objects, narrated experiences, bodies and places. Informed by Doreen Massey’s (2005) notion of throwntogetherness, we aim to describe the plurality of individual trajectories that come together in the construction of the school as a social and physical space. This enables us to explore how the different social backgrounds of pupils have merged in the construction of schools as meeting places in the past and how these encounters have further influenced the lives of the previous pupils.Methodologically, this study sets out from interviews of informants who attended the partner schools of this project in the 70’s. The interviews include elements of walk-along interviews where informants are encouraged to interact with objects and photos that can set into play storytelling that informs the analysis of social relations, interactions, and material, cultural and historical constructions in which the life story is embedded. The interviews will be conducted in and near the school buildings and in the informants’ present homes or other places of their preference. 8-12 informants will be recruited and interviewed 2-3 times each. First interviews are carried out in Sweden and Finland in the fall 2022 and the spring 2023. The interviews will be analyzed in a framework of narrative analysis with a life history approach.The life history approach will give access to the narrated memories and experiences of the school as a meeting place, the opportunities it provided to the informants and the difficulties they encountered. It also contributes with knowledge of what these lived experiences of the social relations established in the local school as a meeting place with its specific architectural divisions and spatial arrangements have meant for the students of the 70’s across the lifespan, providing socio-historical insight into the development of the Nordic basic school as a political and a educational project.
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| 3. |
- Hau, Stephan, 1960-
(author)
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Streams of the Unconscious Mind
- 2008
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In: Atelier Goldstein Artists. - Berlin : Jovis Verlag. - 9783936314892 ; , s. 150-160
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Book chapter (pop. science, debate, etc.)abstract
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| 4. |
- Hubmayr, J., et al.
(author)
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Optical Characterization of OMT-Coupled TES Bolometers for LiteBIRD
- 2022
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In: Journal of Low Temperature Physics. - : Springer Science and Business Media LLC. - 0022-2291 .- 1573-7357. ; 209:3-4, s. 396-408
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Journal article (peer-reviewed)abstract
- Feedhorn- and orthomode transducer- (OMT) coupled transition edge sensor (TES) bolometers have been designed and micro-fabricated to meet the optical specifications of the LiteBIRD high frequency telescope (HFT) focal plane. We discuss the design and optical characterization of two LiteBIRD HFT detector types: dual-polarization, dual-frequency-band pixels with 195/280 GHz and 235/337 GHz band centers. Results show well-matched passbands between orthogonal polarization channels and frequency centers within 3% of the design values. The optical efficiency of each frequency channel is conservatively reported to be within the range 0.64-0.72, determined from the response to a cryogenic, temperature-controlled thermal source. These values are in good agreement with expectations and either exceed or are within 10% of the values used in the LiteBIRD sensitivity forecast. Lastly, we report a measurement of loss in Nb/SiN x/Nb microstrip at 100 mK and over the frequency range 200-350 GHz, which is comparable to values previously reported in the literature.
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| 5. |
- Hübner, Axel, et al.
(author)
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Laminated turbo codes
- 2005
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In: [Host publication title missing]. - 0780391519 ; , s. 597-601
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Conference paper (peer-reviewed)abstract
- In this paper we introduce a new coding scheme - so-called laminated turbo codes. It is characterized by a block-convolutional structure that enables us to combine the advantages of a convolutional encoder memory and a block-oriented decoding method. We show that this block-convolutional structure is superior in terms of its error correction capability compared to the pure block structure of the corresponding self-concatenated code. Comparisons to turbo codes and multiple turbo codes are also included. Finally, the impact of the inter-block memory is investigated.
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| 6. |
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