• Quad-Polarimetric SAR for Detection and Characterization of Icebergs 

    Akbari, Vahid; Brekke, Camilla; Doulgeris, Anthony Paul; Storvold, Rune; Sivertsen, Agnar H. (Conference object; Konferansebidrag, 2016)
    This paper evaluates the performance of fully polarimetric SAR data in iceberg detection and characterization. The study aims to explore the potential of RADARSAT-2 SAR data to detect icebergs and growlers in Svalbard that have broken off from the glaciers nearby. To be able to detect iceberg/growlers in a SAR image, a significant contrast between iceberg and background clutter is required. The ...
  • Non-gaussian clustering of SAR images for glacier change detection 

    Akbari, Vahid; Doulgeris, Anthony Paul; Eltoft, Torbjørn (Journal article; Tidsskriftartikkel, 2010-12)
    Our aim is to use unsupervised, non-Gaussian clustering of Arctic glaciers for post-classification change detection. Firstly, we demonstrate the consistency of non-Gaussian clustering algorithms for Envisat ASAR images by characterizing the expected random error level for different SAR acquisition conditions (such as incidence angle). This allows us to determine whether an observed variation is ...
  • Should Clinicians Split or Lump Psychiatric Symptoms? The Structure of Psychopathology in Two Large Pediatric Clinical Samples from England and Norway 

    Fernández de la Cruz, Lorena; Vidal-Ribas, Pablo; Zahreddine, Nada; Mathiassen, Børge; Brøndbo, Per Håkan; Simonoff, Emily; Goodman, Robert; Stringaris, Argyris (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-14)
    It has been suggested that the structure of psychiatric phenomena can be reduced to a few symptom dimensions. These proposals, mainly based on epidemiological samples, may not apply to clinical populations. We tested the structure of psychiatric symptoms across two pediatric clinical samples from England (N=8434) and Norway (N=5866). Confirmatory factor analyses of the parent-reported Strengths ...
  • Prospects and challenges of environmental DNA (eDNA) monitoring in freshwater ponds 

    Harper, Lynsey R.; Buxton, Andrew S.; Rees, Helen C.; Bruce, Kat; Brys, Rein; Halfmaerten, David; Read, Daniel S.; Watson, Hayley V.; Sayer, Carl D.; Jones, Elanor P.; Priestley, Victoria; Mächler, Elvira; Múrria, Cesc; Garcès-Pastor, Sandra; Medupin, Cecilia; Burgess, Katherine; Benson, Gillian; Boonham, Neil; Griffiths, Richard A.; Handley, Lori Lawson; Hänfling, Bernd (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-03)
    Environmental DNA (eDNA) analysis is a rapid, non-invasive, cost-efficient biodiversity monitoring tool with enormous potential to inform aquatic conservation and management. Development is ongoing, with strong commercial interest, and new uses are continually being discovered. General applications of eDNA and guidelines for best practice in freshwater systems have been established, but ...
  • Design and Biological Evaluation of Antifouling Dihydrostilbene Oxime Hybrids 

    Moodie, Lindon W. K.; Cervin, Gunnar; Trepos, Rozenn; Labriere, Christophe; Hellio, Claire; Pavia, Henrik; Svenson, Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-13)
    By combining the recently reported repelling natural dihydrostilbene scaffold with an oxime moiety found in many marine antifoulants, a library of nine antifouling hybrid compounds was developed and biologically evaluated. The prepared compounds were shown to display a low antifouling effect against marine bacteria but a high potency against the attachment and growth of microalgae down to MIC ...

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