نتایج جستجو برای: ammonia synthesis

تعداد نتایج: 434427  

Journal: :Archives of disease in childhood 1997
S G Miller G J Schwartz

The case is reported of an infant with hyperammonaemia secondary to severe distal renal tubular acidosis. A clinical association between increased concentrations of ammonia in serum and renal tubular acidosis has not previously been described. In response to acidosis the infant's kidneys presumably increased ammonia synthesis but did not excrete ammonia, resulting in hyperammonaemia. The patien...

1999

Ammonia (NH3) is produced from atmospheric nitrogen and hydrogen from a hydrocarbon source. Natural gas is the most commonly used hydrocarbon feedstock for new plants; other feedstocks that have been used include naphtha, oil, and gasified coal. Natural gas is favored over the other feedstocks from an environmental perspective. Ammonia production from natural gas includes the following processe...

Journal: :international journal of advanced biological and biomedical research 2013
jalal bayati zadeh zahra moradi kor nasroallah moradi kor

synchronization of rumen available protein and energy is one of the conceptual methods to increase the efficiency of utilization of nutrients by the ruminants the concept of synchronization energy and protein was first by jhonson, implying that maximum microbial protein synthesis could be achieved by matching the rate of organic matter and protein degradation. synchronization of rumen available...

Journal: :Plant physiology 1975
I Barash H Mor T Sadon

Glutamate dehydrogenase becomes density labeled through the incorporation of deuterium and (15)N when detached oat leaves (Avena sativa var. Fulghum) are incubated in the presence of ammonia. The enzyme has been isolated by means of DEAE-cellulose chromatography, ammonium sulfate precipitation, isopycnic equilibrium centrifugation, and disc electrophoresis from leaves fed l-methionine-(35)S. Ra...

Journal: :Journal of Physical Chemistry Letters 2021

The successful synthesis of high-entropy alloy (HEA) nanoparticles, a long-sought goal in materials science, opens new frontier science with applications across catalysis, structural alloys, and energetic materials. Recently, Co25Mo45Fe10Ni10Cu10 HEA made earth-abundant elements was shown to have high catalytic activity for ammonia decomposition, which rivals that state-of-the-art, but prohibit...

Jalal Bayati Zadeh, Nasroallah Moradi kor Zahra Moradi kor

Synchronization of rumen available protein and energy is one of the conceptual methods to increase the efficiency of utilization of nutrients by the ruminants The concept of synchronization energy and protein was first by Jhonson, Implying that maximum microbial protein synthesis could be achieved by matching the rate of Organic Matter and protein degradation. Synchronization of rumen available...

Jalal Bayati Zadeh, Nasroallah Moradi kor Zahra Moradi kor

Synchronization of rumen available protein and energy is one of the conceptual methods to increase the efficiency of utilization of nutrients by the ruminants The concept of synchronization energy and protein was first by Jhonson, Implying that maximum microbial protein synthesis could be achieved by matching the rate of Organic Matter and protein degradation. Synchronization of rumen available...

Jalal Bayati Zadeh, Nasroallah Moradi kor Zahra Moradi kor

Synchronization of rumen available protein and energy is one of the conceptual methods to increase the efficiency of utilization of nutrients by the ruminants The concept of synchronization energy and protein was first by Jhonson, Implying that maximum microbial protein synthesis could be achieved by matching the rate of Organic Matter and protein degradation. Synchronization of rumen available...

2017
Krzysztof Milewski Małgorzata Bogacińska-Karaś Inez Fręśko Wojciech Hilgier Radosław Jaźwiec Jan Albrecht Magdalena Zielińska

Previously we had shown that ammonia stimulates nitric oxide (NO) synthesis in astrocytes by increasing the uptake of the precursor amino acid, arginine via the heteromeric arginine/glutamine transporter y⁺LAT2. Ammonia also increases the concentration in the brain of the endogenous inhibitor of nitric oxide synthases (NOS), asymmetric dimethylarginine (ADMA), but distribution of ADMA surplus b...

Journal: :The American journal of clinical nutrition 2003
Fernando Scaglia Juan Marini Judy Rosenberger Joseph Henry Peter Garlick Brendan Lee Peter Reeds

BACKGROUND Female carriers of ornithine transcarbamylase deficiency (OTCD) have nearly normal rates of total urea synthesis, but they derive less urea from systemic glutamine amide nitrogen than do healthy persons. OBJECTIVE The objective of the study was to investigate whether females with symptomatic OTCD rely on alternative pathways to compensate for the reduced urea synthesis activity obs...

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