Search for dissertations about: "signal evolution"

Showing result 1 - 5 of 136 swedish dissertations containing the words signal evolution.

  1. 1. Evolution of signal form

    University dissertation from Stockholm : Zoologiska institutionen

    Author : Liselotte Jansson; Magnus Enquist; Gunilla Rosenqvist; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Abstract : Visual signals, used for communication both within and between species, vary immensely in the forms that they take. How is it that all this splendour has evolved in nature? Since it is the receiver’s preferences that cause selective pressures on signals, elucidating the mechanism behind the response of the signal receiver is vital to gain a closer understanding of the evolutionary process. READ MORE

  2. 2. Haptoglobin: Biosynthesis and Evolution

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Krzysztof B. Wicher; Erik Fries; John W. M. Creemers; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; haptoglobin; cleavage; C1r-LP; evolution; vertebrate; endoplasmic; Golgi; complement; Molekylärbiologi; NATURAL SCIENCES Biology Cell and molecular biology Molecular biology; NATURVETENSKAP Biologi Cell- och molekylärbiologi Molekylärbiologi;

    Abstract : Haptoglobin (Hp) is a serum protein known for its ability to form a tight complex with hemoglobin (Hb) and thereby inhibiting the oxidative activity of Hb. Mammalian Hp is synthesized as a precursor (proHp) that undergoes proteolytic cleavage by a previously unidentified enzyme in the endoplasmic reticulum (ER). READ MORE

  3. 3. Protein Folding, Binding and Evolution PDZ domains and paralemmins as model systems

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Greta Hultqvist; Per Jemth; Ruth Nussinov; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Protein folding; evolution; binding; allostery; Paralemmin; PDZ domain;

    Abstract : Proteins present at the synapse need to be multitasking in order to perform all vital functions in this limited space. In this thesis I have analyzed the function and evolution of such proteins, focusing on the PDZ domain and the paralemmin family. The PDZ domains bind to a wide variety of interaction partners. READ MORE

  4. 4. Elliptical Adaptive Structuring Elements for Mathematical Morphology

    University dissertation from Luleå tekniska universitet

    Author : Anders Landström; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal Processing;

    Abstract : As technological advances drives the evolution of sensors as well as the systems using them, processing and analysis of multi-dimensional signals such as images becomes more and more common in a wide range of applications ranging from consumer products to automated systems in process industry. Image processing is often needed to enhance or suppress features in the acquired data, enabling better analysis of the signals and thereby better use of the system in question. READ MORE

  5. 5. Evolution of Mimicry and Aposematism Explained: Salient Traits and Predator Psychology

    University dissertation from Stockholm : Department of Zoology, Stockholm University

    Author : Baharan Kazemi; Olof Leimar; Gabriella Gamberale-Stille; Mike Speed; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; imperfect mimicry; mimicry evolution; predator learning; discrimination; generalization; salience; overshadowing; aposematism; warning signal evolution; generalization bias; peak shift; etologi; Ethology;

    Abstract : Aposematic species have evolved conspicuous warning signals, such as bright colors and striking patterns, to deter predators. Some edible and harmless species take advantage of this deterrent effect by mimicking their appearance. Mimicry is a great example of how natural selection produces remarkable adaptations. READ MORE