Sökning: "Fixed Effects"

Visar resultat 16 - 20 av 358 avhandlingar innehållade orden Fixed Effects.

  1. 16. Rhythm of the job stress blues : Psychosocial working conditions and depression in working life and across retirement

    Författare :Julia Åhlin; Linda Magnusson Hanson; Hugo Westerlund; Tarani Chandola; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; job stress; psychosocial working conditions; job demand-control-support model; effort-reward imbalance model; organizational justice; depressive symptoms; longitudinal studies; trajectory analysis; latent class analysis; fixed-effects regression; folkhälsovetenskap; Public Health Sciences;

    Sammanfattning : A work environment characterized by poor psychosocial working conditions may lead to stress and mental health problems such as depression, a common and burdensome public health problem with significant consequences for individuals and for society at large. A number of psychosocial working characteristics have been found to be associated with increased depressive symptoms or clinical depression. LÄS MER

  3. 17. Assessing the effects of societal injury control interventions

    Författare :Carl Bonander; Ragnar Andersson; Sven Bremberg; Karlstads universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; causal inference; epidemiology; injury; time series analysis; impact evaluation; Risk and Environmental Studies; Risk- och Miljöstudier;

    Sammanfattning : Injuries have emerged as one of the biggest public health issues of the 21th century. Yet, the causal effects of injury control strategies are often questioned due to a lack of randomized experiments. LÄS MER

  4. 18. Simulation-based Evaluation of Fixed to Flexible Transit

    Författare :David Leffler; Erik Jenelius; Wilco Burghout; Oded Cats; Chris Tampère; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transportsystem; Transport Systems;

    Sammanfattning : Emerging technologies have inspired a wide array of flexible public transit system designs characterized by varying degrees of demand-responsive routing and scheduling. The availability and synthesis of new data sources with higher degrees of spatial and temporal richness brought on by advancements in Intelligent Transport Systems allow for monitoring and responding to evolving supply-demand imbalances in real-time. LÄS MER

  5. 19. Transition Towards Fixed-Line Autonomous Bus Transportation Systems

    Författare :Jonas Hatzenbühler; Erik Jenelius; Oded Cats; Clas Rydergren; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Autonomous Buses; Public Transportation; Network Design; Resource Allocation; Simulation-based multi-objective Optimization; Transportvetenskap; Transport Science;

    Sammanfattning : In the last years the steady development of autonomous driving technology has enabled the deployment of more mature autonomous vehicles. These vehicles have been applied in several pilot projects worldwide, most commonly in the form of small buses. LÄS MER

  7. 20. Spin momentum transfer effects for spintronic device applications

    Författare :Yan Zhou; Johan Åkerman; Daniel E. Bürgler; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spin Torque Oscillator; Giant Magnetoresistance; Tunneling Magnetoresistance; Magnetism; Magnetism;

    Sammanfattning : The recent discovery that a spin-polarized current can exert a large torque on a ferromagnet, through direct transfer of spin angular momentum, offers the possibility of electrical current controlled manipulation of magnetic moment in nanoscale magnetic device structures. This so-called spin torque effect holds great promise for two applications, namely, spin torque oscillators (STOs) for wireless communication and radar communication, and spin transfer torque RAM (STT-RAM) for data/information storage. LÄS MER