Search for dissertations about: "threshold effects"

Showing result 1 - 5 of 292 swedish dissertations containing the words threshold effects.

  2. 1. Collision Threshold Pressure : A novel measure of voice function Effects of vocal warm-up, vocal loading and resonance tube phonation in water

    Author : Laura Enflo; Anita McAllister; Johan Sundberg; Marc de Bodt; Linköpings universitet; []
    Keywords : ;

    Abstract : The phonation threshold pressure (PTP), i.e., the smallest amount of subglottal pressure needed to initiate and sustain vocal fold oscillation, is frequently difficult to measure due to the difficulty for some subjects to produce extremely soft phonation. In addition, PTP values are often quite scattered. READ MORE

  4. 2. Resistance breathing with PEP and CPAP : effects on respiratory parameters

    Author : Maria Sehlin; Ola Winsö; Karin Wadell; Fredrik Öhberg; Monika Fagevik Olsèn; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Chest physiotherapy; breathing exercises; PEP; CPAP; airway pressure; airflow; threshold resistor; flow resistor; inspiratory capacity; Borg CR10;

    Abstract : Background: Positive expiratory pressure (PEP) and continuous positive airway pressure (CPAP) are two forms of resistance breathing used in spontaneously breathing patients. With a threshold resistor or a flow resistor, both PEP and CPAP provide a positive (elevated) pressure level during the expiratory phase. READ MORE

  5. 3. Crossing the threshold : Visualization design and conceptual understanding of evolution

    Author : Andreas C. Göransson; Lena Tibell; Konrad Schönborn; Anat Yarden; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Evolution; Natural selection; Visualization; Conceptual understanding; Conceptual change;

    Abstract : The theory of evolution is considered the unifying theory of biology. An accurate understanding of evolution is vital both for the understanding of diverse topics in biology, but also for societal issues such as antibiotic resistance or biodiversity. READ MORE

  6. 4. Bilingual education cognitive development and school achievement : a study of the bilingual programs for Tibetan children

    Author : Yu Qiang; Katrin Goldstein Kyaga; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; bilingualism; bilingual education; cognitive development; threshold hypothesis; study variable; covariates the third variables ; path analysis; direct effects; total effects.; internationell pedagogik; International Education;

    Abstract : This study examines the effects of two models of school bilingual programs on Tibetan children's cognitive development and school achievement.Based on the findings of empirical studies, Cummins' threshold theory was critically evaluated. READ MORE

  7. 5. Offshore wind farms - ecological effects of noise and habitat alteration on fish

    Author : Mathias H. Andersson; Sören Nylin; Magnus Wahlberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; renewable energy; fish population; artificial reef; attraction vs. production; habitat structure; reef effect; FAD; bioacoustics; noise disturbance; fish behaviour; detection range; threshold; masking; fish communication and hearing; Marine ecology; Marin ekologi; zoologisk ekologi; Animal Ecology;

    Abstract : There are large gaps in our understanding how fish populations are affected by the anthropogenic noise and the alteration of habitat caused by the construction and operation of offshore wind farms. These issues are of great importance as the construction of offshore wind farms will increase all over the world in the near future. READ MORE