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Extreme enrichment in atmospheric 15N15N. [PDF]
, 2017 Molecular nitrogen (N2) comprises three-quarters of Earth's atmosphere and significant portions of other planetary atmospheres. We report a 19 per mil (‰) excess of 15N15N in air relative to a random distribution of nitrogen isotopes, an enrichment that ...
Fischer, Tobias P +8 more
core +1 more source
Assessment of protein requirements by nitrogen balance [PDF]
Proceedings of the Nutrition Society, 1969 The earliest estimates of protein requirements, such as those of Smith (1863) and Pavy (1874) who recommended about 125 g per day for the average working man, were based on studies of the diets of individuals or of groups of subjects who were considered to be healthy and leading ...
P. R. Payne, D. S. Miller
openaire +6 more sources
Inflammation, negative nitrogen balance, and outcome after aneurysmal subarachnoid hemorrhage
Neurology, 2015 Objective: To analyze the impact of inflammation and negative nitrogen balance (NBAL) on nutritional status and outcomes after subarachnoid hemorrhage (SAH).
N. Badjatia +9 more
semanticscholar +1 more source
Journal of Dairy Science, 2023 : Reducing nitrogen pollution while maintaining milk production is a major challenge of dairy production. One of the keys to delivering on this challenge is to improve the efficiency of how dairy cows use nitrogen.
E. Tavernier +5 more
doaj
Nitrogen dynamic in wheat (Triticum aestivum L.) agroecosystem as influenced by intra- and interspecific competition [PDF]
Planta DaninhaBackground: The study of both intra- and interspecific competitions in Wheat (Triticum aestivum L.) agroecosystem is quite complex and it is essential to understand the influence of nitrogen in these competitions.
Sara Asadi +2 more
doaj +2 more sources
Reducing Ammonia Losses By Adding FeCI3 During Composting Of Sewage Sludge [PDF]
, 1999 The release of ammonia nitrogen during composting of sewage sludge mixed with a lignocellulosic bulking agent leads to a reduction in the agronomic value of the final compost and to harmful effects on the environment. We propose adding a cheap salt FeCl3
Bailly, Jean-René +4 more
core +2 more sources
Semina: Ciências Agrárias, 2015 Avaliou-se os parâmetros ruminais, o consumo, a produção fecal e urinária de nitrogênio e o balanço de nitrogênio (BN) em ovinos alimentados com níveis crescentes de resíduo da extração da polpa de tamarindo - REPT (0,0%, 5,0%, 10,0% e 15,0% na MS ...
Luiz Juliano Valério Geron +9 more
doaj +1 more source
Hypoxia, nitrogen balance and body weight [PDF]
European 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 and phosphorus budgets in Poland as a tool for sustainable nutrients management
Acta 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
THE INTERPRETATION OF A POSITIVE NITROGEN BALANCE IN NEPHRITIS [PDF]
Archives 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