Sökning: "respiration rate"
Visar resultat 6 - 10 av 102 avhandlingar innehållade orden respiration rate.
6. Achieving carbon isotope mass balance in northern forest soils, soil respiration and fungi
Sammanfattning : Northern forests contain a large part of the global terrestrial carbon pool and it is unclear whether they will be sinks or sources for atmospheric carbon if the climate warms as predicted. Stable isotope techniques provide unique tools to study the carbon cycle at different scales but the interpretation of the isotope data is impaired by our inability to close the carbon isotope mass balance of ecosystems. LÄS MER
7. On the association between panic disorder and autonomic regulation – With special focus on the roles of respiration and on the catechol-O-methyltransferase gene
Sammanfattning : Background and aims: Panic disorder is a psychiatric disorder characterized by sudden attacks of intense anxiety. It displays a lot of features suggesting that it may be associated with an underlying aberration in the autonomic regulation of heart activity and respiration: i) the attacks are often characterized by respiratory symptoms and symptoms from the heart, ii) the attacks can be elicited by respiratory stimulants, iii) between attacks, patients with panic disorder often display enhanced respiratory variability and reduced heart rate variability, and iv) patients with panic disorder display enhanced prevalence of respiratory disorders and enhanced mortality in cardiovascular disease. LÄS MER
8. Bacterial and fungal growth in soil: The effect of temperature and substrate addition
Sammanfattning : Bacteria and fungi are the main agents in decomposition of soil organic matter. Their activity is determined by the availability and quality of substrate, especially its content of carbon, but also nitrogen and phosphorus. Other environmental factors, which affect the activity of the microbial community in soil, are temperature, moisture and pH. LÄS MER
9. On the possible role of serotonin and angiotensin for the respiratory abnormalities observed in panic disorder and premenstrual dysphoria
Sammanfattning : Panic disorder and premenstrual dysphoria are accompanied by intriguing abnormalities related to the control of respiration, including enhanced responsiveness to CO2 and enhanced respiratory variability. These aberrations do not seem to be shared by other psychiatric disorders, but appear to be relatively unique for panic disorder and premenstrual dysphoria. LÄS MER
10. Acclimation of plants to combinations of abiotic factors : connecting the lab to the field
Sammanfattning : Increasing atmospheric CO2 and other greenhouse gasses coupled to the accelerated rate of global warming puts plants and ecosystems under the strain of a rapidly changing abiotic environment. Understanding the impacts of changing global climate is a strong focus of plant science and the establishment of more resilient crop variants is an important goal for breeding programs. LÄS MER
