Search for dissertations about: "AD"

Showing result 1 - 5 of 954 swedish dissertations containing the word AD.

  2. 1. Internet Access and QoS in Ad Hoc Networks

    Author : Ali Hamidian; Lunds universitet; []
    Keywords : ad hoc networks; QoS; IEEE 802.11e; MANET; ad hoc routing; distributed resource reservation; Wireless computer communication; IEEE 802.11; ad hoc; mobile ad hoc networks; EDCA; AODV; distributed QoS;

    Abstract : It is likely that the increased popularity of wireless local area networks (WLANs) together with the continuous technological advances in wireless communication, also increase the interest for ad hoc networks. An ad hoc network is a wireless, autonomous, infrastructure-less network composed of stations that communicate with each other directly in a peer-to-peer fashion. READ MORE

  4. 2. Development of NMR methods for studies of dynamics and structure : applications to motilin, Alzheimer β-peptide and ubiquitin

    Author : Peter Damberg; Ad Bax; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Biophysics; biofysik;

    Abstract : NMR spin relaxation was used to study structure and dynamics of two biologically important peptides.The first case concerns the three-dimensional structure of the 22 amino acid residue peptide hormone motilin in the presence of SDS micelles, which mimic a biomembrane environment. READ MORE

  5. 3. Characterisation of inputs and outputs of striatal medium spiny neurons in health and disease

    Author : Marko Filipović; Jeanette Hellgren Kotaleski; Arvind Kumar; Gilad Silberberg; Ad Aertsen; Andrew Sharott; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; basal ganglia; striatum; medium spiny neurons; subthalamic nucleus; globus pallidus; Parkinson s disease; in vivo; oscillations; spectral analysis; response variability; networks; simulations; modelling; Numerical Analysis; Numerisk analys; Computer Science; Datalogi; Biological and Biomedical Physics; Biologisk och biomedicinsk fysik;

    Abstract : Striatal medium spiny neurons (MSNs) play a crucial role in various motor and cognitive functions. They are separated into those belonging to the direct pathway (dMSNs) and the indirect pathway (iMSNs) of the basal ganglia, depending on whether they express D1 or D2 type dopamine receptors, respectively. READ MORE

  6. 4. Rare-event simulation with Markov chain Monte Carlo

    Author : Thorbjörn Gudmundsson; Henrik Hult; Ad Ridder; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

    Abstract : Stochastic simulation is a popular method for computing probabilities or expecta- tions where analytical answers are difficult to derive. It is well known that standard methods of simulation are inefficient for computing rare-event probabilities and there- fore more advanced methods are needed to those problems. READ MORE

  7. 5. Computational Approaches to the Degeneration of Brain Networks and Other Complex Networks

    Author : Simachew Abebe Mengiste; Jeanette Hällgren Kotaleski; Arvind Kumar; Ad Aertsen; Michelle Rudolph; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Neurodegeneration; Synaptic pruning; Networks; Structure; Dynamics; Controllability;

    Abstract : Networks are ubiquitous with several levels of complexity, configuration, hierarchy and function. Many micro- and macro-scale biological or non-biological interactions define complex systems. READ MORE