Results 21 to 30 of about 996,100 (254)

Catabolic Processes in Cardiosurgical Patients

open access: yesОбщая реаниматология, 2007
Objective: to evaluate catabolic and anabolic processes in cardiosurgical patients during heart operations under extracorporeal circulation.Subjects and methods.
V. V. Lomivorotov
doaj   +1 more source

The excretion of nitrogen and phosphorus and changes in nitrogen content in the Antarctic amphipod Waldeckia obesa and isopod Glyptonotus antarcticus during long-term starvation

open access: yesThe European Zoological Journal, 2022
Seasonal food availability for benthic feeders in Antarctica can influence the level of excreted metabolites, which may then be a source of N and P for autotrophs.
A. Nędzarek, K. Stepanowska
doaj   +1 more source

Diurnal switches in diazotrophic lifestyle increase nitrogen contribution to cereals

open access: yesNature Communications, 2023
Uncoupling of biological nitrogen fixation from ammonia assimilation is a prerequisite step for engineering ammonia excretion and improvement of plant-associative nitrogen fixation.
Yuqian Tang   +9 more
doaj   +1 more source

The Dairy Cow Slurry Composition Used as Organic Fertilizer Is Influenced by the Level and Origin of the Dietary Protein

open access: yesAnimals, 2021
Less than 30% of dairy cattle’s nitrogen ingested is retained in milk. Therefore, large amounts of nitrogen can be excreted in manure and urine with a potential environmental impact. In addition, some legume forages can be more susceptible to proteolysis
Fernando Vicente   +5 more
doaj   +1 more source

Predicting urinary creatinine excretion and its usefulness to identify incomplete 24h urine collections [PDF]

open access: yes, 2012
Studies using 24 h urine collections need to incorporate ways to validate the completeness of the urine samples. Models to predict urinary creatinine excretion (UCE) have been developed for this purpose; however, information on their usefulness to ...
Dekkers, A.L.M.   +19 more
core   +1 more source

Nitrogen Metabolism in Lactating Goats Fed with Diets Containing Different Protein Sources [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2014
This study aimed to evaluate urea excretion, nitrogen balance and microbial protein synthesis in lactating goats fed with diets containing different protein sources in the concentrate (soybean meal, cottonseed meal, aerial part of cassava hay and ...
A. B. Santos   +8 more
doaj   +1 more source

Lithium treatment reduces the renal kallikrein excretion rate [PDF]

open access: yes, 1990
Lithium treatment reduces the renal kallikrein excretion rate. Lithium salts are widely used agents for the prophylactic treatment of affective disorders. Lithium salts may be associated with distal nephron dysfunction.
Marin-Grez, Marcos   +4 more
core   +1 more source

Microbial protein synthesis and concentration of urea in dairy heifers fed diets with cactus forage Opuntia

open access: yesSemina: Ciências Agrárias, 2015
The objective was to analyze the influence of increasing levels of forage cactus Opuntia in the diet on the nitrogen balance, the concentrations of urea in urine and plasma and microbial protein synthesis in dairy heifers ¾ Holstein-zebu confined. twenty
Maria do Socorro Mercês Aguiar   +6 more
doaj   +1 more source

High (but Not Low) Urinary Iodine Excretion Is Predicted by Iodine Excretion Levels from Five Years Ago [PDF]

open access: yes, 2011
Background: It has not been investigated whether there are associations between urinary iodine (UI) excretion measurements some years apart, nor whether such an association remains after adjustment for nutritional habits. The aim of the present study was
Below, Harald   +17 more
core   +1 more source

Carbon and nitrogen flux through the Cape rock lobster jasus lalandii (H. Milne Edwards), with particular reference to the nearshore Benguela system [PDF]

open access: yes, 1989
Bibliography: leaves 169-198.Observations and experiments on Jasus lalandii were undertaken over the period 1977 to 1986 to quantify the passage of carbon and nitrogen through populations at Oudekraal and Robben Island on the west coast of South Africa ...
Zoutendyk, Peter
core   +1 more source

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