Search for dissertations about: "External Factors"

Showing result 1 - 5 of 643 swedish dissertations containing the words External Factors.

  2. 1. Arsenic accumulation in plants for food and phytoremediation : Influence by external factors

    Author : Claes Bergqvist; Maria Greger; Sylvia Lindberg; Lena Ma; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arsenic; accumulation; availability; distribution; habitat; phy-toremediation; rhizosphere; redox potential; speciation; Plant Physiology; växtfysiologi;

    Abstract : Arsenic (As) appears in the environment as various As species, which may vary in plant uptake and toxicity. Moreover, As exposure may vary between habitat due to availability and speciation, both of which are influenced by redox potential. To decrease As uptake, addition of silicate may be a tool. READ MORE

  4. 2. Falls in older people in geriatric care settings : predisposing and precipitating factors

    Author : Kristina Kallin; Leif Svanström; Umeå universitet; []
    Keywords : accidental falls; risk factors; older people; residential facilities; geriatric care; cognition; drug therapy; wounds and injuries; geriatric psychiatry; meteorological factors; geriatrik; Geriatrics;

    Abstract : Falls and their consequences are a major health problem in the older population, increasing their immobility, morbidity and mortality. This thesis focuses on older people living in geriatric care settings, frail older people who are most prone to suffer falls. READ MORE

  5. 3. Predictive and prognostic factors in cervical carcinomas treated with (chemo-) radiotherapy

    Author : Louise Bohr Mordhorst; Bengt Sorbe; Preben Kjölhede; Örebro universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cervical carcinoma; radio-chemotherapy; biomarkers; predictive factors; prognostic factors; multiprotein analysis; Hedgehog pathway; Wnt β-catenin pathway; Surgery; Kirurgi;

    Abstract : A series of 131 women with cervical carcinoma FIGO stage I-IV were treated with external radiotherapy and intracavitary brachytherapy. In 47 patients (36%) concomitant chemotherapy was given. One hundred and twenty-one tumors (92%) achieved complete remission. Addition of chemotherapy increased primary cure rate to 98%. READ MORE

  6. 4. Bird orientation: external cues and ecological factors

    Author : Johan Bäckman; Evolutionär ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; tracking radar; Emlen funnel.; Animal ecology; Djurekologi; oscillatory orientation; roosting flight; scatter; concentration; heading; cue calibration; light dependent; magnetoreception; subcutaneous fat stores; body condition; energetics; geomagnetic field; visual cues; orientation; birds; migration;

    Abstract : Birds are generally capable of accurate orientation. In this thesis I present studies about the external cues and the ecological factors that influences bird orientation. A multitude of environmental cues are used to select and maintain a proper direction. READ MORE

  7. 5. Psychosocial work factors and burnout : a study of a working general population and patients at a stress rehabilitation clinic

    Author : Sofia Norlund; Lisbeth Slunga Järvholm; Margareta Kristenson; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Burnout; exhaustion disorder; psychosocial work factors; coping; social support; demands; control; job strain; job insecurity; sick leave; return to work; working population; epidemiology; grounded theory; folkhälsa; Public health;

    Abstract : Background The psychosocial work environment affects our health (e.g., sick leave and mortality rates). Research on psychosocial work factors and burnout has focused on specific workplaces or occupations and rarely evaluated in the general population or used longitudinal designs. READ MORE