Search for dissertations about: "Lars S. Johansson"

Showing result 1 - 5 of 6 swedish dissertations containing the words Lars S. Johansson.

  2. 1. Bitumen ageing and hydrated lime

    Author : Lars S. Johansson; KTH; []
    Keywords : ;

    Abstract : This doctoral thesis consists of a literature review andfour papers describing experimental studies of the influence ofhydrated lime on bitumen ageing.The literature review describes contemporary knowledge ofbitumen with respect to chemistry, rheology and modification.The relation between chemical composition and mechanicalbehaviour is discussed. READ MORE

  4. 2. Strengthening lifestyle interventions in primary health care : the challenge of change and implementation of guidelines in clinical practice

    Author : Therese Kardakis; Helene Johansson; Lars Weinehall; Lars Jerden; Monica Nyström; Charli Eriksson; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Health orientation; health promotion; prevention; primary health care; readiness for change; lifestyles; clinical practice guidelines; implementation; guideline development; tobacco use; alcohol use; unhealthy eating habits; physical activity; organizational support; folkhälsa; Public health;

    Abstract : Background: Lifestyle habits like tobacco use, hazardous use of alcohol, unhealthy eating habits and insufficient physical activity are risk factors for developing non-communicable diseases, which are the leading, global causes of death. Furthermore, ill health and chronic diseases are costly and put an increased burden on societies and health systems. READ MORE

  5. 3. Quantification of population exposure and health impacts associated with air pollution

    Author : David Segersson; Christer Johansson; Lars Gidhagen; Ranjeet S. Sokhi; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; air pollution; health impact assessment; dispersion modelling; population exposure; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : There is substantial evidence that air pollution, in particular particulate matter (PM), affects our health. The overall objective of this thesis is to understand and quantify population exposure to ambient air pollution and related health impacts. READ MORE

  6. 4. On minimally invasive approaches to sinus lift procedures

    Author : Lars-Åke Johansson; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; autogenous bone graft; bone formation; clinical study; cone beam computed tomography; dental implants; ; flapless surgery; hydroxyapatite; osteotome technique; partially dentate maxillae; sinus lift surgery;

    Abstract : Abstract Aims: The overall aim of the present thesis was to evaluate implant survival and bone regeneration after minimally invasive sinus lift procedures. Material and methods: In study I, 61 patients were prospectively evaluated 12 to 60 months after two different methods of locally bone harvesting methods adjacent to the maxillary sinus lift procedure. READ MORE

  7. 5. Probabilistic time estimation in tunnel projects

    Author : Mohammad Mohammadi; Johan Spross; Fredrik Johansson; Larsson Stefan; Anna Kadefors; Lars-Olof Dahlström; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cost overrun; Tunneling projects; Probabilistic approaches; time estimation; Kostnadsöverskridande; tunnelprojekt; sannolikhetsmetoder; tidsuppskattning; Soil and Rock Mechanics; Jord- och bergmekanik;

    Abstract : Transport infrastructure projects, including tunneling, suffer from timedelays and cost overrun. A literature review shows that the effect ofuncertainty has been neglected in explaining time and cost overrunmeaning that technical explanations matter. READ MORE