Search for dissertations about: "disturbance effects"

Showing result 1 - 5 of 197 swedish dissertations containing the words disturbance effects.

  2. 1. Phytoplankton and Physical Disturbance : Seasonal dynamics in temperate Lake Erken, Sweden

    Author : Yang Yang; Kurt Pettersson; Peeter Nõges; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Phytoplankton dynamics; high-frequency measurements; thermal stratification; water column stability; equilibrium; disturbance;

    Abstract : Phytoplankton mirrors changes in the environment and plays an important role in biogeochemical processes. Phytoplankton dynamics is the outcome of both autogenic succession and external disturbances. READ MORE

  4. 2. GABA-steroid effects in healthy subjects and women with polycystic ovary syndrome

    Author : Helena Hedström; Torbjörn Bäckström; Marie Bixo; Ian Milsom; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Allopregnanolone; isoallopregnanolone; gonadotropins; GABA-A receptor; women; polycystic ovary syndrome; saccade; obstetrik och gynekologi; Obstetrics and Gynaecology;

    Abstract : Background: The progesterone metabolite allopregnanolone is involved in several clinical conditions in women, e.g. premenstrual dysphoric disorder. It is a very potent GABA-steroid with GABA-A receptor effects similar to other GABA-agonists, e. READ MORE

  5. 3. Railway traffic disturbance management

    Author : Johanna Törnquist; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Railway traffic; Transportation; Re-scheduling; Disturbance management; Decision support systems;

    Abstract : With the increasing traffic volumes in many railway networks and reports on capacity deficiencies that result in insufficient punctuality and reliability, the need for efficient disturbance management solutions becomes evident. This thesis focuses on solutions that aim to minimise the consequences of disturbances for the various stakeholders and specifically on methods for re-scheduling the traffic. READ MORE

  6. 4. Lipoprotein lipase in hemodialysis patients and healthy controls : effects of heparin

    Author : Birgit Näsström; Per-Ola Attman; Umeå universitet; []
    Keywords : dalteparin; dialysis; lipoprotein metabolism; LMWH; LPL; triglycerides; UFH; uremia; medicinsk och fysiologisk kemi; Medical and Physiological Chemistry;

    Abstract : Mortality from cardiovascular disease in patients on chronic hemodialysis (HD) is 10 to 20 times greater than in the general population. One major risk factor is renal dyslipidemia, characterised by an impaired catabolism of triglyceride (TG)-rich lipoproteins with accumulation of atherogenic remnant particles. READ MORE

  7. 5. Coral reefs in the Anthropocene : The effects of stress on coral metabolism and symbiont composition

    Author : Suzanne Faxneld; Michael Tedengren; Alina Szmant; Stockholms universitet; []
    Keywords : Corals; Disturbance; Galaxea fascicularis; ITS2; Metabolism; mtDNA; Pollution; Porites lutea; Symbiodinium; Temperature; Turbinaria mesenterina; Vietnam; Marine Ecotoxicology; marin ekotoxikologi;

    Abstract : Coral reefs constitute some of the most prolific and diverse ecosystems on our planet, but also among the most threatened. This thesis investigates the effects of environmental stressors on corals’ metabolism and symbiont diversity. READ MORE