Sökning: "Tobias Hansson"

Hittade 5 avhandlingar innehållade orden Tobias Hansson.

  1. 1. Nonlinear Dynamics of Coherent and Partially Coherent Optical Waves

    Författare :Tobias Hansson; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; soliton interaction; Wigner transform; logarithmically saturable media; Nonlinear Schrödinger equation; parabolic beams; partial coherence; quasilinear diffusion; modulational instability;

    Sammanfattning : In optics an important nonlinear effect is manifested by the fact that the refractive index, in addition to its frequency dependence, also depends on the intensity of the light. Nonlinear effects are present within a wide range of optical applications e.g. the fast growing fields of fiber-optic communication and all-optical signal processing. LÄS MER

  2. 2. Nonlinear Theory of Partially Coherent Optical Waves

    Författare :Tobias Hansson; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nonlinear optics; partial coherence; beam collapse; saturable logarithmic media; soliton interaction; dressing method; parabolic beams; Wigner transform; invariants; modulational instability;

    Sammanfattning : Nonlinear effects arise in optics as a consequence of the medium properties being modified by the presence of light. Of particular interest are situations where the effect of the nonlinearity can be described by an intensity dependent refractive index and the subsequent interplay with dispersion and diffraction. LÄS MER

  3. 3. Objects in Time : Studies of Persistence in B-time

    Detta är en avhandling från Department of Philosophy, Lund University

    Författare :Tobias Hansson Wahlberg; [2009]
    Nyckelord :HUMANIORA; HUMANITIES; B-time; three-dimensionalism.; stage theory; tenselessness; persistence; perdurance; mereology; four-dimensionalism; dispositions; endurance; B-theory of time; change; temporary intrinsics;

    Sammanfattning : This thesis is about the conceptualization of persistence of physical, middle-sized objects within the theoretical framework of the revisionary ‘B-theory’ of time. According to the B-theory, time does not flow, but is an extended and inherently directed fourth dimension along which the history of the universe is ‘laid out’ once and for all. LÄS MER

  4. 4. Neurosteroids Induce Allosteric Effects on the NMDA Receptor Nanomolar Concentrations of Neurosteroids Exert Non-Genomic Effects on the NMDA Receptor Complex

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Tobias Johansson; Fred Nyberg; Pierre Le Grevès; Elisabeth Hansson; [2008]
    Nyckelord :Pharmaceutical pharmacology; Pharmacology; neurosteroids; NMDA receptor; NR2B subunit; ifenprodil; sigma receptor; anabolic androgenic steroids; allosteric modulation; non-genomic; Farmaceutisk farmakologi;

    Sammanfattning : The neurosteroids constitute a group of powerful hormones synthesized and acting in the central nervous system. They participate in a number of important central processes, such as memory and learning, mood and neuroprotection. LÄS MER

  5. 5. Enabling and Coercive Control Coexistence in the Case of Banking

    Detta är en avhandling från Örebro : Örebro University

    Författare :Cecilia Ekström; Tobias Johansson; Gabriella Wennblom; Magnus Hansson; Anders Hersinger; [2018]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Enabling control; coercive control; coexistence of control; attitudinal outcomes of control; management control; regulation; banking;

    Sammanfattning : This thesis focuses on subjects of control and attitudinal outcomes of formalized control in organizations. Previous research have concluded contradicting results of whether formalized control is positive or negative for the employees and propose that not only degree of formalization, but also type of formalization, can explain attitudinal outcomes. LÄS MER