Search for dissertations about: "Efraim"

Showing result 1 - 5 of 6 swedish dissertations containing the word Efraim.

  2. 1. Bounds on the Performance of PSK Block Codes

    Author : Efraim Laksman; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In wireless communication, the minimum Euclidean distance between codewords is a major factor for the ability to correct errors in messages, and it is of interest to maximize the minimum Euclidean distance. The thesis improves previously established general upper bounds on minimum Euclidean distance of phase shift keying block codes. READ MORE

  4. 2. Combinatorial Optimization : Three Applications

    Author : Efraim Laksman; Blekinge Tekniska Högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Combinatorial optimization is a diverse area of mathematics. It concerns optimization on feasible regions defined by discrete sets, graphs, hypergraphs, matroids, etc. . . READ MORE

  5. 3. Nanolatexes: a versatile toolbox for cellulose modification

    Author : Alexandros Efraim Alexakis; Eva Malmström; Justin Zoppe; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nanolatexes; RAFT; PISA; adsorption; cellulose; modification; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Cellulosic materials are widely used in our everyday lives, ranging from paperand packaging to biomedical applications. However, in most applications, cellulose must coexist with hydrophobic polymers which can be challenging due to its hydrophilic character. This has encouraged the exploration of chemical and physical modifications of cellulose. READ MORE

  6. 4. Gene-environment interactions between HPA axis regulatory genes and stressful life events in suicide attempts

    Author : Yair Jacob Ben-Efraim; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Suicide is a leading cause of death. In the future, treatment for suicidal behavior, as well as public health prevention and/or intervention efforts, may be guided by genetic epidemiology. This research is informed by biological alterations which have been previously observed in suicidal behavior. READ MORE

  7. 5. Intergenerational Transfers and Altruism

    Author : Nils-Petter Lagerlöf; Efraim Sadka; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

    Abstract : .... READ MORE