Results 31 to 40 of about 262,309 (231)

Hypoxia, nitrogen balance and body weight [PDF]

open access: yesEuropean Respiratory Journal, 2002
Recent clinical studies have shown that acute exacerbations of chronic obstructive pulmonary disease (COPD) are characterised by disturbances in the balance between dietary intake and energy expenditure 1, 2 as well as by a negative nitrogen balance 3.
Annemie M. W. J. Schols   +1 more
openaire   +3 more sources

Nitrogen balance in soil under eucalyptus plantations

open access: yesRevista Brasileira de Ciência do Solo, 2012
An understanding of the role of organic nitrogen (N) pools in the N supply of eucalyptus plantations is essential for the development of strategies that maximize the efficient use of N for this crop.
Patrícia Anjos Bittencourt Barreto   +3 more
doaj   +1 more source

Nitrogen and phosphorus budgets in Poland as a tool for sustainable nutrients management

open access: yesActa Agriculturae Slovenica, 2006
In the paper the nitrogen and phosphorus balances calculated according to OECD methodology are presented on regional and country levels. For the whole Poland the balance of nitrogen shows surplus of about 45 kg N*ha-1 a-1 with high variability among the ...
Jerzy KOPIŃSKI   +2 more
doaj   +1 more source

Distribution and Energy Balance of Pluto's Nitrogen Ice, as seen by New Horizons in 2015 [PDF]

open access: yes, 2019
Pluto's surface is geologically complex because of volatile ices that are mobile on seasonal and longer time scales. Here we analyzed New Horizons LEISA spectral data to globally map the nitrogen ice, including nitrogen with methane diluted in it.
arxiv   +1 more source

THE INTERPRETATION OF A POSITIVE NITROGEN BALANCE IN NEPHRITIS [PDF]

open access: yesArchives of Internal Medicine, 1915
It has been the practice of clinicians for many years to treat cases of nephritis by means of a dietetic therapy, in which the various forms of nitrogen-containing food have beeen much restricted. One of the several reasons for curtailment of protein in the dietary has been that a damaged kidney cannot readily excrete the end products of protein ...
Annabella E. Richards   +1 more
openaire   +3 more sources

A nitrogen budget for Denmark; developments between 1990 and 2010, and prospects for the future

open access: yesEnvironmental Research Letters, 2014
A nitrogen (N) budget for Denmark has been developed for the years 1990 to 2010, describing the inputs and outputs at the national scale and the internal flows between relevant sectors of the economy. Satisfactorily closing the N budgets for some sectors
N J Hutchings   +9 more
doaj   +1 more source

The Alkali-Tolerant Bacterium of Bacillus thuringiensis EM-A1 Can Effectively Perform Heterotrophic Nitrification and Aerobic Denitrification

open access: yesFrontiers in Environmental Science, 2022
Removal of nitrogen from hydroxylamine could effectively improve the wastewater treatment efficiency. In this work, Bacillus thuringiensis EM-A1 was obtained from a biogas digester with hydroxylamine as the only nitrogen source.
Tingjiang Wang   +5 more
doaj   +1 more source

Improved Heat and Particle Flux Mitigation in High Core Confinement, Baffled, Alternate Divertor Configurations in the TCV tokamak [PDF]

open access: yes, 2022
Nitrogen seeded detachment has been achieved in the Tokamak a Configuration Variable (TCV) in advanced divertor configurations (ADCs), namely X-divertor and X-point target, with and without baffles in H-mode plasmas with high core confinement. Both ADCs show a remarkable reduction in the inter-ELM particle and heat fluxes to the target compared to the ...
arxiv   +1 more source

Nitrogen metabolism and microbial synthesis in sheep fed diets containing slow release urea to replace the conventional ure

open access: yesActa Scientiarum: Animal Sciences, 2014
This study aimed to evaluate the effects of adding slow release urea to replace conventional urea in diets for feedlot sheep on nitrogen metabolism and microbial protein synthesis.
Evanilton Moura Alves   +5 more
doaj   +1 more source

Challenges and opportunities for improving nitrogen utilization efficiency for more sustainable pork production

open access: yesFrontiers in Animal Science, 2023
Pork is one of the most consumed animal-derived protein sources around the world, but less than 45% of dietary nitrogen (N) is converted into edible lean meat.
Gerald C. Shurson, Brian J. Kerr
doaj   +1 more source

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