Ammonium 15n
Mostrando 13-24 de 152 artigos, teses e dissertações.
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13. Application of response surface methodology to enhancement of biomass production by Lactobacillus rhamnosus E/N
Response surface methodology (RSM) was employed to study the effects of various medium components on biomass production by Lactobacillus rhamnosus E/N. This strain is commonly used in the pharmaceutical and food industries due to its beneficial effect on the human gut and general health. The best medium composition derived from RSM regression was (in g/l) gl
Braz. J. Microbiol.. Publicado em: 2011-12
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14. Adubação nitrogenada em café decotado num latossolo de cerrado.
RESUMO: O nitrogênio (N) é um dos macronutrientes mais exigidos pelo cafeeiro. Sua utilização é necessaria para o cultivo nos solos de cerrado, pois estes não fornecem o nutriente em quantidades suficientes. Foi realizado um ensaio com o objetivo de estudar o efeito de fontes e doses de N no café decotado a 1,5 m de altura em 1997. O experimento foi i
Planaltina. Publicado em: 2011
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15. Herança e correlação entre caracteres de raiz e eficiência de uso do nitrogênio em milho / Inheritance and correlation between root traits and nitrogen use efficiency in maize
The efficiency of nitrogen fertilization in maize did not exceed 50%. Among the existing proposals to increase the efficiency of nitrogen use in maize stands the higher N uptake from the increase of the root system, especially in environments with low availability of N. The objectives of this work were to study the influence of nitrogen in the genetic variab
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/02/2010
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16. Remoção de nitrogênio amoniacal de lixiviado de aterro de resíduos sólidos por precipitação química com formação de estruvita / Ammonium-nitrogen removal from leachate of solid waste landfill by chemical precipitation with struvite formation
Municipal solid waste landfilling is the best final disposal method due to its low operating cost and minimizing environmental impacts. As a result of degradation of the solid waste, leachate is generated and it is characterized by high concentrations of organic matter, ammonia nitrogen and inorganic salts which has high pollution potential. In this context,
Publicado em: 2010
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17. Spot urine porphyrins/creatinine ratio profile of healthy Brazilian individuals adjusted for personal habits
Changes in urinary porphyrin excretion may be the result of hereditary causes and/or from environmental or occupational exposure. The objective of this study was to measure the amount of some porphyrins in spot urine samples obtained from volunteers randomly selected from a healthy adult population of São Paulo with a sensitive HPLC method and to estimate n
Brazilian Journal of Medical and Biological Research. Publicado em: 15/05/2009
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18. Doses de nitrogênio e de enxofre para a recuperação de pastagem com capim-braquiária: atributos de parte aérea, raízes e fertilidade do solo / Nitrogen and sulfur rates for a Signal grass pasture recovery: forage aboveground and roots, and soil fertility attributes
Fertilizer application has been essential to pastures establishment, maintenance and recovery, whereas sulfur supply may be inadequate for grasses receiving high nitrogen rates. The objectives were to study the effects of combined nitrogen and sulfur rates in a degrading Signal grass (Brachiaria decumbens) pasture, by evaluating productive, morphological, ph
Publicado em: 2009
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19. Pós-colheita de nêspera Fukuhara: efeito de compostos salicilados, 1-metilciclopropeno e tratamentos térmicos / Postharvest of loquat fruit Fukuhara: effect of salicylate compounds, 1-methylcyclopropene and heat treatments
The aim of this work was to develop new techniques to improve the loquat fruit Fukuhara conservation, avoiding juiciness loss, increase in firmness and pulp internal browning. For this, allow to cold storage the application of salicilate compounds, 1- methylcyclopropene and temperature conditioning. In the first experiment four concentration of salicylic aci
Publicado em: 2009
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20. Amino acids requirement and soybean meal in juvenile dourados Salminus brasiliensis (Cuvier, 1816) nutrition / Exigência em aminoácidos e farelo de soja na nutrição de juvenis de dourado Salminus brasiliensis (Cuvier, 1816)
Only a few research report address dietary amino acids requirement of Brazilian fish; this is true especially in regard to dourado, Salminus brasiliensis (Cuvier, 1816), a migratory, carnivorous Characin, which is not only the largest scale fish of the Prata Basin but also a prized aquaculture and sport fishing species. This study address dietary amino acids
Publicado em: 2009
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21. Perdas nitrogenadas e recuperação aparente de nitrogênio em fontes de adubação de capim elefante / Nitrogen losses and aparent recovery of nitrogen in sources of fertilization of elephant-gass
The efficiency of nitrogen fertilization is one of the key elements to grass production. The knowledge of nitrogen losses within this practice associated with the application of alternative nitrogen sources provide efficient use and flexibility in choosing between nitrogen fertilizers. The objective of this study was to evaluate nitrate leaching, ammonium vo
Publicado em: 2008
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22. ASPECTOS NUTRICIONAIS DE UM SISTEMA AGROFLORESTAL COM EUCALIPTO NO SUL DO RIO GRANDE DO SUL, BRASIL / NUTRITIONAL ASPECTS IN AN AGROFORESTRY SYSTEM WITH EUCALYPTUS IN SOUTH BRAZIL
This study was conducted at an experimental area at Aroeira Farm, belonging to Votorantim Celulose e Papel company, under the geographic coordinates 31 45 50.7 S e 53 50 34.9 W, located in Candiota county. In the area there is an experimental field, where some production factors involved in an agroflorestry system are being monitored, with four different tre
Publicado em: 2008
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23. Avaliação do cultivo de Spirulina platensis utilizando simultaneamente nitrato de potássio e cloreto de amônio como fontes de nitrogênio / Evaluation of Spirulina platensis cultivation using simultaneously potassium nitrate and ammonium chloride as nitrogen sources.
Spirulina (Arthrospira) platensis (Cyanophyceae) é uma cianobactéria de grande potencial econômico para a produção de proteínas, principalmente. A utilização simultânea de duas fontes de nitrogênio no cultivo deste microrganismo pode aumentar a quantidade final de biomassa produzida e possibilitar resultados interessantes do ponto de vista de proce
Publicado em: 2008
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24. Preparação e padronização de metodologia de marcação in vitroe estudo de biodistribuição do octreotídeo-[Tyr3]-HYNIC/EDDA/TRICINA-[99mTc / PREPARATION AND STANDARDIZATION OF AN IN VITRO LABELING METHODOLOGY AND STUDY OF [99mTc]-EDDA/TRICINE/HYNIC-[Tyr3]-OCTREOTIDE BIODISTRIBUTION
Somatostatine receptors are widely expressed by several tumors, especially of the neuroendocrine origin. In vivo images of these tumors using radiolabeled somatostatine analogues became a useful clinical tool in oncology. The radiopharmaceutical currently applied is [111In-DTPA-Phe1-D]-octreotide. However, the use of indium-111 (111In) is limited by the prod
Publicado em: 2008