Groundwater vulnerability assessment to assist the measurement planning of the water framework directive : a practical approach with stakeholders [PDF]
, 2007 An evaluation scheme is presented in this paper which can be used to assess groundwater vulnerability according to the requirements of the European Water Framework Directive (WFD).
Berkhoff, Karin
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Urochloa Grasses Swap Nitrogen Source When Grown in Association with Legumes in Tropical Pastures
Diversity, 2020 The degradation of tropical pastures sown with introduced grasses (e.g., Urochloa spp.) has dramatic environmental and economic consequences in Latin America. Nitrogen (N) limitation to plant growth contributes to pasture degradation. The introduction of
Daniel M. Villegas +6 more
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Aplicação dos isótopos estáveis em aqüicultura Stable isotopes in aquaculture
Revista Brasileira de Zootecnia, 2007 O produto mais importante do conhecimento é a ignorância. A situação sugere a imagem de alguém que vive numa ilha de conhecimento cercado por um mar de ignorância.
Carlos Ducatti
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Cell patterning on photolithographically defined parylene-C:SiO2 substrates [PDF]
, 2014 Cell patterning platforms support broad research goals, such as construction of predefined in vitro neuronal networks and the exploration of certain central aspects of cellular physiology.
Brennan, Paul M +4 more
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Plasma L-ergothioneine measurement by high-performance liquid chromatography and capillary electrophoresis after a pre-column derivatization with 5-iodoacetamidofluorescein (5-IAF) and fluorescence detection [PDF]
, 2013 Two sensitive and reproducible capillary electrophoresis and high-performance liquid chromatography-fluorescence procedures were established for quantitative determination of L-egothioneine in plasma.
Carru, Ciriaco +7 more
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Pesquisa Agropecuária Brasileira, 2008 O objetivo deste trabalho foi rastrear a inclussão de farinhas de origem animal em rações para frango de corte com ou sem levedura de cana-de-açúcar e farelo de trigo, por meio da análise do músculo peitoral das aves pelas técnicas dos isótopos estáveis ...
Rosana Gottmann +6 more
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Frontiers in Environmental Science, 2023 Nitrogen is the most important driving factor in primary production and decomposition in arid and semi-arid ecosystems. The effects of shrub encroachment on nitrogen cycling have been investigated at the site scale but seldomly conducted at the landscape
Yanan Zhao +6 more
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Stabilization and plant uptake of N from 15N-labelled pea residue 16.5 years after incorporation in soil [PDF]
, 2006 The decline of N from 15N-labelled mature pea residues was followed in unplanted soil over 16.5 yr. Eight years after residue incorporation, 24% of the residue 15N input was still present in the soil and, after 16.5 yr, 16% of the residue 15N input ...
Erik Steen Jensen +11 more
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Effects of Different Nitrogen Dose and Sources as Top-Dressing on Yield and Silage Quality Attributes of Silage Maize [PDF]
Anais da Academia Brasileira de Ciências, 2020 Effects of different nitrogen doses and sources applied as top-dressing on dry matter yield and quality of maize silage were investigated in this study.
SATI UZUN +2 more
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NITROGEN-15 MAGNETIC RESONANCE SPECTROSCOPY, I. CHEMICAL SHIFTS [PDF]
Proceedings of the National Academy of Sciences, 1964 Except for the original determination(1) of nuclear moments, nitrogen magnetic resonance spectroscopy has been limited to the isotope of mass number 14. Although N14 is an abundant isotope, it possesses an electric quadrupole moment, which seriously broadens the resonances of nitrogen in all but the most symmetrical of environments.(2) Consequently ...
Lambert, Joseph B. +2 more
openaire +3 more sources