Search for dissertations about: "Taxonomy"

Showing result 16 - 20 of 299 swedish dissertations containing the word Taxonomy.

  2. 16. Upper Cretaceous - Lower Tertiary deep-see benthic foraminifera from the Walvis Ridge, South Atlantic Ocean : taxonomy, paleobiogeography, and paleoecology

    Author : Joen G. V. Widmark; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  4. 17. Conodont biostratigraphy, taxonomy and palaeoecology in the Darriwilian (Middle Ordovician) of Baltoscandia - with focus on meteorite and extraterrestrial chromite-rich strata

    Author : Johanna Mellgren; Berggrundsgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Conodonts; biostratigraphy; taxonomy; palaeoecology; morphometrics; extraterrestrial chromite; meteorites; Darriwilian; Middle Ordovician; Baltoscandia;

    Abstract : This thesis deals with conodont biostratigraphy and palaeoecology in the Darriwilian (Middle Ordovician) of Baltoscandia, with focus on limestone strata showing traces of the ~ 470 Ma L-chondrite parent body break-up. The evidence for this cosmic event includes abundant centimeter to decimeter-sized fossil meteorites and elevated levels of sediment-dispersed extraterrestrial L-type chromite found in a stratigraphical interval corresponding to the uppermost Lenodus antivariabilis, the L. READ MORE

  5. 18. Genomic Variation and Evolution of HERV-H and other Endogenous Retroviruses (ERVs)

    Author : Patric Jern; Jonas Blomberg; Michael Tristem; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; Endogenous Retrovirus ERV ; HERV-H; Phylogeny; Evolution; Sequence Variation; Polymorphism; Recent Integrations; Horizontal Transfer; Master Elements; Taxonomy; Mikrobiologi; Microbiology; immunology; infectious diseases; Mikrobiologi; immunologi; infektionssjukdomar;

    Abstract : An exogenous retrovirus (XRV) that integrates into a germ cell may be inherited as a Mendelian gene; it becomes an endogenous retrovirus (ERV). The human genome consists of up to 8% HERVs. The gammaretroviral (ERV class I) HERV-H, with 926 members, is the largest ERV group. READ MORE

  6. 19. Question Classification in Question Answering Systems

    Author : Håkan Sundblad; Arne Jönsson; Jussi Karlgren; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Question classification; question answering; machine learning; taxonomy; evaluation; Computational linguistics; Datorlingvistik;

    Abstract : Question answering systems can be seen as the next step in information retrieval, allowing users to pose questions in natural language and receive succinct answers. In order for a question answering system as a whole to be successful, research has shown that the correct classification of questions with regards to the expected answer type is imperative. READ MORE

  7. 20. A Study of Partially Reliable Transport Protocols for Soft Real-Time Applications

    Author : Karl-Johan Grinnemo; Anna Brunström; Bengt Ahlgren; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transport protocol; internet; partial reliability; retransmission-based; real-time; simulation; taxonomy; survey; Computer Science; Datavetenskap;

    Abstract : The profileration of multimedia applications, such as streaming video, teleconferencing, and interactive gaming has created a tremendous challenge for the traditional transport protocols of the Internet – UDP and TCP. Specifically, many multimedia applications are examples of soft real-time applications. READ MORE