Sökning: "Johan Ahlgren"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Johan Ahlgren.

  1. 1. The prey perspective - behaviour and appearance in a world of predators

    Författare :Johan Ahlgren; Enhet akvatisk ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Local adaptation; predator regime; phenotypic plasticity; inducible defence; mortality; animal personality; predator; trait-compensation;

    Sammanfattning : The varieties of prey phenotypes that have been revealed in nature are vast and many of these phenotypes are the result of the selective force that predators have had on prey traits in the past. Even within species and populations we see variations due to both differences in the selection forces they live under but also due to individual trait variation. LÄS MER

  3. 2. Studies on Prediction of Axillary Lymph Node Status in Invasive Breast Cancer

    Författare :Johan Ahlgren; Karl von Smitten; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oncology; Breast cancer; lymph node metastases; prognostic factors; predictive factors; axillary surgery; angiogenesis; immunohistochemistry; Onkologi; Oncology; Onkologi; Oncology; onkologi;

    Sammanfattning : Breast cancer is the most common malignancy among females in Sweden. Axillary lymph-node dissection is a standard procedure in the management of breast cancer, aiming at obtaining prognostic information for adjuvant therapy decisions. Axillary dissection entails considerable morbidity. LÄS MER

  4. 3. On Security in Safety-Critical Process Control

    Författare :Johan Åkerberg; Mats Björkman; Maria Lindén; Bengt Ahlgren; Mälardalens högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer and systems science; Data- och systemvetenskap; Computer Science; datavetenskap;

    Sammanfattning : This Licentiate thesis is about security in automation networks with emphasis on fieldbus communication. In the process industry, network and system security have become even more important since the introduction of Ethernet-based fieldbus protocols. LÄS MER

  5. 4. The short, excited life of tellurium : Lifetime analysis of excited states in the Te midshell region

    Författare :Ebba Ahlgren Cederlöf; Ayse Nyberg; Torbjörn Bäck; Johan Nyberg; Matthias Weiszflog; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; gamma spectroscopy; lifetime measurement; lifetime; shell model; RDDS; DDCM; nuclear physics; nuclear structure; gamma spektroskopi; livstidsmätningar; livstid; skalmodellen; RDDS; DDCM; kärnfysik; kärnstruktur; Atomic; Subatomic and Astrophysics; Atomär fysik; subatomär fysik och astrofysik;

    Sammanfattning : In this licentiate thesis, lifetimes of low lying excited states in the midshell region of tellurium isotopes are discussed. The nuclear lifetimes are interesting properties to study, since they are inversely proportional to the transition probabilities, which contain information on the underlying structure of the nucleus. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER