Search for dissertations about: "N. Löfgren"

Showing result 1 - 5 of 7 swedish dissertations containing the words N. Löfgren.

  2. 1. Play with fire, play with you sometimes : Social aspects of condom use among young people in Sweden

    Author : Veronika Fridlund; Fredrik Liljeros; Charlotta Löfgren-Mårtenson; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; adolescents; alcohol; behavioral expectations; Chlamydia Trachomatis; condom use; contraceptive use; gender; mixed-methods; sexual behavior; sexual practice; sexual relationships; STI; Sweden; youth; Sociology; sociologi;

    Abstract : Although Sweden invests a great deal of money and effort in prevention work, STIs are a major problem in our society. Young people are at high risk both when it comes to unwanted pregnancies and STIs and several studies have revealed that the condom use is quite low. Condom use is a complex issue. READ MORE

  4. 2. A Theoretical Investigation of the Nitrogen-Vacancy Center in Diamond as a Single Molecule Sensor and Qubit : Charging through Explicit Electron Donors

    Author : Robin Löfgren; Andreas Larsson; Sven Öberg; Corina Etz; Fedor Jelezko; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Applied Physics; Tillämpad fysik;

    Abstract : The NV-center in diamond is one of the most well researched defects to date. Since its discovery in the 1960’s, a large body of experimental as well as theoretical work have been produced, investigating its properties and applications. READ MORE

  5. 3. Physicians sickness certification practices : frequency, problems, and learning

    Author : Anna Löfgren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Sick leave; sickness certification; insurance medicine; physician; family practice; competence; learning; health care;

    Abstract : Background: Administration of sickness absence involves many stakeholders, among them physicians, who play a key role in the sickness insurance systems in most western countries. Despite the impact that sickness absence can have on the life situation of the affected individual, physicians have limited training in how to handle sickness certification cases, and very little research has examined the practices of those medical professionals in this context. READ MORE

  6. 4. Hormones and breast cancer : aspects on receptor expression and metabolism

    Author : Lars Löfgren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Breast cancer; fine needle aspiration biopsy; tamoxifen; megestrol acetate; SHBG; sex steroid hormone receptors; Syndecan-1;

    Abstract : Breast cancer is the most common malignancy among women in the western world. Sex steroid hormones are implied as risk factors but endocrine regimens are also used in the therapy of breast cancer. Current knowledge about the endocrine and metabolic effects of different treatments is incomplete. READ MORE

  7. 5. Device Technology Based on High Temperature Superconductors and Microwave Breakdown in Gases

    Author : Martin Löfgren; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; distortion; penetration depth; surface resistance; transmit-receive switch; coupled-grain model; high-power; microwave; pulse; surface impedance; breakdown; propagation; modulator; air; superconductor; transmission line; resonator; coplanar waveguide; plasma;

    Abstract : This thesis deals with two separate fields of microwave technology. The first section treats microwave characterization and applications of high temperature superconducting (HTS) thin films, while the second section treats microwave breakdown in transmit-receive (TR) switches and in air. Within the first section, four main topics are adressed. READ MORE