Essays about: "marker density"

Showing result 1 - 5 of 11 essays containing the words marker density.

  1. 1. Mobility, habitat selection and population connectivity of Lycaena helle in central Sweden : implications for conservation

    University essay from SLU/Dept. of Ecology

    Author : Hanna Modin; [2018]
    Keywords : Lycaena helle; violet copper; Lepidoptera; Lycaenidae; mobility; dispersal; resource selection function; habitat selection; connectivity; metapopulation; stepping stone;

    Abstract : Lycaena helle is an endangered butterfly that is mainly threatened by habitat degradation and fragmentation. For all species with a fragmented distribution, knowledge about mobility, habitat requirements and connectivity is key to developing successful conservation strategies. READ MORE

  2. 2. Pride and prejudice : extra-group paternity in lions and the effects of marker density on kinship and relatedness estimates

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Julia Jansson; [2017]
    Keywords : lion; mating structure; extra-group paternity; Single Nucleotide Polymorphism SNP ; marker density; panthera leo;

    Abstract : The development effective high-throughput sequencing techniques has allowed further insight to the mating systems of wild animal populations and challenged our perception that reproductive behaviour can be predicted from social structure. A recent study of lions (Panthera leo) in Etosha National Park, Namibia, found evidence of extra-group paternity (EGP) which has never before been confirmed among lions. READ MORE

  3. 3. Quality Assurance of the Spatial Accuracy of Large Field of View Magnetic Resonance Imaging

    University essay from KTH/Skolan för teknik och hälsa (STH)

    Author : Fredrik Illerstam; [2014]
    Keywords : MRI; MR; spatial accuracy; spatial distortions; large FOV; MR-only; radiotherapy treatment planning; RTP; gradient non-linearity; B0 inhomogeneity;

    Abstract : In todays Radiotherapy Treatment Planning, RTP, it is common to use Computed Tomography, CT, together with Magnetic Resonance Imaging, MRI, where CT provides electron density information and a geometrical reference, and where MRI provides superior soft tissue contrast. To sim- plify the workflow and improve treatment accuracy, research groups have demonstrated how to exclude CT and use a MRI-only approach. READ MORE

  4. 4. Högskärmar och kalhyggesfritt skogsbruk på bördig mark i Medelpad

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Elsa Järvholm; [2011]
    Keywords : högskärm; gran; föryngring; skador; kontinuitetsskogsbruk;

    Abstract : Under senare år har intresset för ett alternativ till kalhyggesbruk vuxit sig starkare i både Sverige och andra länder i Europa. I Sverige ses skärmskogsbruk och blädning i granskogar som två högst intressanta alternativ till kalhyggesbruk. READ MORE

  5. 5. Dosimetric and geometric evaluation of MRI as the only imaging modality for the radiotherapy treatment process of localized prostate cancer

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Johan Sjöberg; [2010]
    Keywords : Strålterapi; Medicine and Health Sciences;

    Abstract : Introduction MRI provides better soft tissue contrast than CT and is an invaluable tool in the radiotherapy treatment process. The gold standard today is image fusion of MRI and CT data where targets and organs-at-risk are delineated on the MRI data and the dose calculation is performed on the CT data. READ MORE