Search for dissertations about: "rai"

Showing result 1 - 5 of 14 swedish dissertations containing the word rai.

  2. 1. Environmental risk factors for autism spectrum disorders

    Author : Dheeraj Rai; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Aims: Two overarching hypotheses were tested in this thesis- first, that the environmental factors studied during pregnancy or the time preceding birth would be associated with a higher risk of autism spectrum disorders (ASD) in the offspring; and second, that these risk factors and/or their magnitude of associations may be different for autism spectrum disorders with and without intellectual disability (ID). Methods: Studies I-IV were case-control studies nested within a population-based cohort of all children 0 to 17 years old, living in Stockholm County between the years 2001 to 2007 (n=589,114). READ MORE

  4. 2. The use of mass spectrometry and DNA technology in the investigation of hemoglobin disorders

    Author : Dilip K Rai; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Hemoglobin (Hb) disorders, which severely affect nearly 300,000 newborns every year, have become a global problem. The disorders manifest a wide spectrum of clinical symptoms ranging from asymptomatic to lethal conditions. READ MORE

  5. 3. Rock Mass Characterisation Using Drill Performance Monitoring : Problems, Analysis challenges and Limitations

    Author : Rajib Ghosh; Piyush Rai; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drift och underhållsteknik; Operation and Maintenance Engineering;

    Abstract : In open pit mining, it is important to know as much information as possible about rock masses to be mined for more cost-effective mining operation. In rock engineering perspective, information about rock mass characteristics usually includes hardness of the rock, geological features, fractures, faults, ore contacts, water bearing stratum. READ MORE

  6. 4. Design and Development of Mineral Structure Specific Collectors in Flotation

    Author : Tommy Karlkvist; Beena Rai; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Abstract : The success of mineral flotation processes depends on the hydrophobization of the surface for the desired mineral particles whilst keeping, or making, all other minerals hydrophilic. This is achieved by adding several reagents to the flotation pulp to adsorb selectively at the mineral/water interface. READ MORE

  7. 5. Challenges and opportunities for tuberculosis prevention and care in an HIV epidemic area, Chiang Rai, Thailand

    Author : Jintana Ngamvithayapong-Yanai; Karolinska Institutet; Karolinska Institutet; []
    Keywords : TB associated HIV; socio-cultural aspect; health seeking behavior; adherence; Directly Observed Therapy; Thailand; qualitative research.;

    Abstract : Objective: To describe the impact of HIV/AIDS on the perceptions, attitudes and behaviors of various groups of people that may effect TB transmission, prevention and care. Methods: The study was conducted in Chiang Rai, the northernmost province of Thailand with some of the highest rates of TB and HIV. READ MORE