Sökning: "stress sound 2011"

Hittade 4 avhandlingar innehållade orden stress sound 2011.

1. 1. Striving for self-esteem : Conceptualizations and role in burnout

   Författare :Victoria Blom; Maarit Johnson; Petra Lindfors; Martin Bäckström; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; self-esteem; contingent self-esteem; burnout; stressors; gender; stress; work; competence; performance; Psychology; Psykologi; psykologi; Psychology;

   Sammanfattning : When self-esteem is dependent on competence individuals invest a great deal of effort in their accomplishments in order to validate themselves. The aim of the present thesis was to develop a theoretically sound and valid concept and measure of contingent self-esteem dependent on competence, and examine its vulnerable implications and role in burnout. LÄS MER

3. 2. Voice use in teaching environments: Speakers' comfort

   Författare :Viveka Lyberg Åhlander; foniatri och audiologi Logopedi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; voice; vocal load; teachers; voice quality; room acoustics; work environment; F0; Sound pressure level; vocal dose; high-speed imaging; voice accumulation;

   Sammanfattning : Teachers have high occupational voice demands and is a group frequently presented at voice clinics. Little is known about the teachers’ own view of the contribution from the environment and about the teachers’ voice use at their work-place. LÄS MER

4. 3. Combined thermal and mechanical loading of railway wheel treads. A numerical study of material response and cracking under braking conditions

   Författare :Sara Caprioli; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rolling Contact Fatigue; Ratchetting; Tread braking; Plastic deformation; Thermal cracking;

   Sammanfattning : The scope of the thesis is prediction of the material response owing to combined thermal and mechanical loading of a railway wheel tread. The long-term objective is to improve models for prediction of surface-initiated Rolling Contact Fatigue (RCF) under the combined effect of mechanical loading due to rolling (and sliding) contact and thermal loading due to braking and/or wheel--rail friction. LÄS MER

5. 4. Lost in transition? A study of newly graduated teachers' experiences during the initial period of employment

   Författare :Daniel Hultell; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The most crucial factors affecting burnout and work engagement when entering employment were feelings of competence to satisfactorily perform one’s work, the discrepancy between previous expectations and the actual conditions of employment, and the balance between work and private life. Beginning teachers who felt competent, had their expectations met, and had a sound balance between their work and private life experienced less burnout and were more engaged in their work. LÄS MER