Search for dissertations about: "positive"

Showing result 1 - 5 of 6352 swedish dissertations containing the word positive.

2. 1. Externally positive systems : Analysis and control based on combinatorial polynomials

   Author : Liam Hamed Taghavian; Mikael Johansson; Cristian R. Rojas; Fabio Pasqualetti; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Linear systems; External positivity; Optimization; Non-overshooting control; Combinatorics; Complete monotonicity; Majorization.; Electrical Engineering; Elektro- och systemteknik;

   Abstract : Monotonic tracking is required in many control systems, including those that cannot tolerate any overshoots and undershoots in their closed-loop responses. Classical examples are found in vehicle cruise control and liquid tank level control. READ MORE

4. 2. Margins of Prevention : - On Older Adolescents' Positive and Negative Beliefs about Illicit Drug Use

   Author : Patrik Karlsson; Anders Bergmark; Edle Ravndal; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Illicit drugs; adolescents; prevention; margins for change; beliefs; perceptions; expectancies; positive; negative; risk; pleasure; Sweden; Social work; Socialt arbete;

   Abstract : This study explores older adolescents’ positive and negative beliefs about illicit drug use from a preventive perspective. By positive beliefs is meant positive expectancies and benefit perceptions. By negative beliefs is meant negative expectancies and risk perceptions. READ MORE

5. 3. Children's health and developmental delay : positive functioning in every-day life

   Author : Lena Almqvist; Mats Granlund; Dale Farren; Örebro universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; health; positive functioning; participation; engagement; children; developmental delay; disabilities; Psychology; Psykologi; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Psychology; Psykologi;

   Abstract : The general aim of this thesis was to gain understanding of what patterns of child and environment characteristics that promote and sustain health and positive functioning of children with and without developmental delay or disabilities. The focus was on promotion of strengths and competencies rather than on prevention of risk factors, with an emphasis on children’s functioning in every-day life. READ MORE

6. 4. Positive change for wellbeing : Maintained intervention-induced behaviors and healthier lifestyles

   Author : Frida Skarin; Erik Wästlund; Henrik Gustafsson; Cecilie Thøgersen-Ntoumani; Karlstads universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; maintained; behavioral change; intervention; wellbeing; health; lifestyle; Psykologi; Psychology;

   Abstract : Lifestyle behaviors such as increased private car use, stress, low physical activity, and unhealthy eating negatively affect individual and global health, environment and economy. We must change behavior, not only to decrease suffering and economical costs, but to promote wellbeing for flourishing human beings on a living planet. READ MORE

7. 5. Features of the Electric Fields Generated by Lightning with Special Attention to Positive Ground Flashes

   Author : Dalina Johari; Vernon Cooray; Mahbubur Rahman; Fridolin Heidler; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; positive ground flashes; preliminary breakdown pulses; multiple-trains PBPs; positive leader; bidirectional leader; negative leader branch; subsequent return strokes; distant lightning; Engineering Science with specialization in Atmospheric Discharges; Teknisk fysik med inriktning mot atmosfäriska urladdningar;

   Abstract : This thesis focuses on the main processes in positive ground flashes and the distant lightning environment for both positive and negative ground flashes. It presents the characteristics of the preliminary breakdown pulses (PBPs), the characteristics of the electric field pulses observed during leader propagation, and the characteristics of the electric fields produced by the first and the subsequent return strokes. READ MORE