Sökning: "nitrogen accumulation"
Visar resultat 26 - 30 av 85 avhandlingar innehållade orden nitrogen accumulation.
26. Effects of diet intervention on body composition and ectopic fat accumulation in obese postmenopausal women
Sammanfattning : Background Obesity is increasing worldwide and is a major contributor to morbidity and mortality. Notably, abdominal (central) obesity carries a high risk of obesity-related diseases, while peripheral fat accumulation can act in a protective manner. LÄS MER
27. The effect of simulated anthropogenic nitrogen deposition on the net carbon balance of boreal soils
Sammanfattning : Anthropogenic activities have globally increased nitrogen (N) deposition and carbon dioxide (CO₂) gas emissions. It is proposed that anthropogenic N deposition may increase the size of boreal forest CO₂ sink, because boreal ecosystems are N limited. LÄS MER
28. Growth and nitrogen economy of cereal-legume sole- and intercrops, and their effects on weed suppression
Sammanfattning : Crop production currently faces the dilemma of using methods that increase crop yield but with adverse environmental effects, or attaining lower yields with less environmental impacts. Applying ecological principles has shown potential in finding a middle-ground of maintaining crop yield with less inputs. LÄS MER
29. Studies of hydrocarbon-assisted selective catalytic reduction of nitrogen oxides - DME as reductant and reaction mechanism over silver/alumina
Sammanfattning : Increasing amounts of carbon dioxide are attaining worldwide growing attention as one probable cause for global warming. Together with the expected peak in oil production and an increasing oil demand, this results in a greater interest in more fuel effective lean burn engines (i.e. operation with excess oxygen). LÄS MER
30. Altered gene expression in the human airways during oxidative stress
Sammanfattning : The atmospheric accumulation of pollutant gases, such as N02 and ozone, has been associated with an increased airways hyper-reactivity within the healthy population. Moreover, those with conditions such as asthma and chronic obstructive pulmonary diseases generally experience an exacerbation of their symptoms upon exposure to these noxious gases. LÄS MER