Sökning: "Germ"

Visar resultat 21 - 25 av 30 uppsatser innehållade ordet Germ.

  1. 21. Counting Sertoli Cells in Thin Testicular Tissue

    Master-uppsats, Institutionen för informationsteknologi

    Författare :Abdolrahim Kadkhodamohammadi; [2012]
    Nyckelord :;

    Sammanfattning : This master thesis develops a novel system to model the tubular structure in thin sections of testicular tissue and count the Sertoli cells. A three-phase method is proposed to model the tubular structure in microscopic images of the tissue, the model is deployed to detect the cells. LÄS MER

  3. 22. Molecular analysis of dog and wolf genomic DNA to explore integration polymorphisms of Canine Endogenous Retroviruses, CfERV

    Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :MohammadReza Mirzazadeh; [2012]
    Nyckelord :Endogenous Retrovirus ERV ; Canine Endogenous Retrovirus CfERV ; germ line; Vertical transmission; Polymorphism; Copy Number Variation CNV ;

    Sammanfattning : Endogenous retroviruses (ERVs) are found in all examined vertebrate genomes. Different mammals have been reported to contain different amounts of ERVs. For example, in the dog genome 0.15% of sequences are derived from retroviruses. LÄS MER

  4. 23. Nejayote produced at household level by Mayan women in Guatemala : is it a threat to aquatic ecosystems or a resource for food security?

    Master-uppsats, Sektionen för lärande och miljö

    Författare :Luisa Cifuentes de Gramajo; [2011]
    Nyckelord :Nejayote; Nixtamalization; Mayan women; Pollutant;

    Sammanfattning : The aim of this study was to find out if nejayote produced at household level in Guatemala represents a threat to aquatic ecosystems and, if so, propose sustainable processing, reuse and disposal methods. First, all aspects related to nejayote production were explored. LÄS MER

  5. 24. Dental histology of Cretaceous mosasaurs (Reptilia, Squamata) : incremental growth lines in dentine and implications for tooth replacement

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Johan Gren; [2011]
    Nyckelord :dental histology; mosasaurs; Cretaceous tetrapods; incremental lines; von Ebner; Andresen; tooth replacement; tandhistologi; mosasaurier; kretaceiska tetrapoder; tillväxtlinjer; tandersättning; Earth and Environmental Sciences;

    Sammanfattning : The dentine of teeth from five genera of mosasaurs [i.e., Clidastes, Halisaurus, Dollosaurus (Prognathodon),cf. Platecarpus, and Tylosaurus] and a Mesozoic crocodylian (Aigialosuchus) from the Campanian of the Kristianstad Basin, southernmost Sweden, displays two types of incremental growth lines; i. LÄS MER

  7. 25. Comparison between different freezing and thawing methods for human spermatozoa

    Kandidat-uppsats, Institutionen för medicinsk biokemi och mikrobiologi

    Författare :Sandra Castillo; [2011]
    Nyckelord :cryopreservation; sperm; ice crystallization; gradient wash; ampoule;

    Sammanfattning : Preservation of cells and tissues by freezing at temperatures below 70°C has led to new possibilities for the storage of germ cells for fertility preservation. During the freezing process problems might occur, the greatest being ice crystallization which can cause membrane destruction and thus cell death. LÄS MER