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The background to this thesis is that we know very little about lesbian and bisexual women's sexual health in Sweden, particularly in relation to sexually transmitted infections (STI) and their transmissions. An internet-based questionnaire with self-selected participants targeted to the group WSW (Women who have Sex with Women) has been implemented. An international survey on the subject shows that the WSW has sexually transmitted infections. This is also in line with the results in this study. The most common sexually transmitted infection in the survey is chlamydia which 12.3 percent have had. This is a remarkably high figure in comparison with international studies. There are a number of barriers to WSW developing safer sex strategies. Many described a heteronormative response and very low level of knowledge in the health-care.Also WSW themselves have no or little knowledge on the subject. Prevention messages to the group, WSW is often about to use dental dams and very few in practice and in the case where it is used, it has only a very limited function. The majority of women in the study have had sexual contact with both men and women, this applies to both lesbian and bisexually women. In a theoretical analysis, it is possible to discern a conflict between the postmodern and the modern understanding of love and sexuality. This conflict does not exist only on an interpersonal / cultural level but also on a intrapsychic level of humans.

This thesis is developed as a proposal for heating for a primary school and kindergarten in the region of Brno-countryside. For the insulated building, a combination of heating and air-conditioning is proposed. The concept is designed so that the air-conditioning preheats the exterior air and the heating system warms the incoming air to a comfortable temperature. For the required thermal performance, sources of heat (for gas and pellets) and a layout solution for the boiler room is designed. Drainage of combustion products is proposed for both solutions. The project solution is per the extent of the construction permit. The theoretical part is linked with the practical part through the condensation boilers, their function and division, and drainage of combustion products. The experiment for the given topic was conducted on the drainage of combustion products. The pressure loss of the reverse knob was determined in relation to the flow rate of air in the condensation boilers as this loss is essential in assessing the drainage of combustion products.