A further example of ecosystem services is the biologically mediated nitrogen cycling in soils. Nitrogen (N) is essential for plant growth, and plants convey many of the services derived from soils. Macro- and meso-invertebrates initiate decomposition of soil organic matter by fragmentation, ingestion...
Anthropogenic addition of reactive nitrogen (Nr) to the biosphere is increasing globally and some terrestrial ecosystems are suffering from a state of excess Nr for biological nitrogen (N) demand, termed N saturation. Here, we review the ecological risks in relation to N saturation and prospective...
Bioenergy sustainability risks identified by the IPCC include land-use change from forest to agricul- ture and other reductions of carbon pools, larger flows of nitrogen use and emissions of N 2O and N H3, higher water demand, reduced biodiversity, and risks to food security (quantities...
The development of bioenergy chains replacing fossil energy chains in the four countries is intended to be part of a sustainable development of society. Sustainability risks are the risks of inadvertently causing retrogression in one or more dimensions, despite the intention of generating progress in a...
Gases are neither combustible nor toxic that contains refrigerant gases/liquids used for freezing and velocity energies, such as nitrogen, neon, and carbon dioxide. Toxic gases Gases lead to the expiration of the source or, if bitten, seriously damage anthropological well-being. Examples are fluorin...
The combined effects are estimated according to the hazard index (HI), which shows the health risks associated with the consumption of these bivalves and vegetable species. Therefore, continuous and excess consumption for a lifetime of more than 70 years has a probability of target cancer risk....
The pKa of the tertiary nitrogens are 7.3 and 8.4. The compound has the following structural formula: Inactive Ingredients: Hydrated dextrates, citric acid, dibasic sodium phosphate, artificial berry flavor, magnesium stearate, and edible glue (modified food starch and confectioner's sugar). 12 ...
Comparison of four dog diets (including nitrogen balance study) Four pairs of Beagle dogs received in rotation, a specially prepared purified diet in powder form (reference diet), a semi-solid (SS) diet and two complete... PRB Noel,AD Walker - 《Journal of Small Animal Practice》 被引量:...
(3). Testosterone was, of course, the first anabolic steroid ever created, and remains the basis for all other derivations we have currently being used in medicine today. Testosterone was then used in 1936, in an experiment demonstrating that nitrogen excretion of the castrated dog could be ...
Rand, W. M., Pellett, P. L. & Young, V. R. Meta-analysis of nitrogen balance studies for estimating protein requirements in healthy adults.Am. J. Clin. Nutr.77, 109–127 (2003). ArticleCASPubMedGoogle Scholar Millward, D. J. The nutritional value of plant-based diets in relation ...