Results 61 to 70 of about 99,984 (304)
Este trabalho objetivou avaliar os efeitos da calagem e de fontes e doses de N sobre a disponibilidade de nitrato, em amostras (020 cm) de solos brasileiros.
CARLOS ALBERTO SILVA +1 more
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Caves are extreme, often oligotrophic, environments that house diverse groups of microorganisms. Many of these microbes can perform microbiologically induced carbonate precipitation (MICP) to form crystalline secondary cave deposits known as speleothems.
Keegan Koning +8 more
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Ureolysis by Streptococcus salivarius is critical for pH homeostasis of dental plaque and prevention of dental caries. The expression of S. salivarius urease is induced by acidic pH and carbohydrate excess.
Szu-Chuan Huang, Yi-Ywan M. Chen
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Synthesis, enzyme inhibition and anticancer investigation of unsymmetrical 1,3-disubstituted ureas [PDF]
In this research work seventeen urea derivatives, including five new derivatives N-mesityl-N'-(3-methylphenyl)urea (2), N-(3-methoxyphenyl)-N'-(3-methylphenyl)urea (4), N-mesityl-N'-(4-methylphenyl)urea (6), N-(1,3-benzothiazol-2-yl)-N'-(3 ...
Mustafa Sana +2 more
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Surface functionalization of polypropylene macrofibers to enhance fiber‐matrix interfacial bonding. ABSTRACT Concrete is the most used higher compressive strength‐building material, albeit brittle to tensile, and flexural loads. Polypropylene (PP) synthetic polymeric macrofibres are commonly employed as reinforcement material to prevent this situation ...
Elena Saccani +3 more
wiley +1 more source
Enzyme activity in terrestrial soil in relation to exploration of the Martian surface [PDF]
Urease activity in soil is persistent for long periods under low water, low temperature, and sterile regimes, and it was suggested that some form of enzyme-protective mechanism exists in soil.
Ardakani, M. S. +3 more
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Soil mineral nitrogen, soil urease activity, nitrogen losses and nitrogen footprint under machine-planted rice with side-deep fertilization [PDF]
Jianwei Peng +7 more
openalex +1 more source
Following the Danube Flow. The first total syntheses of highly brominated rubrolides T, U, and U‐analog, together with the efficient and divergent syntheses of rubrolides A, D, and P. The dibrominated key intermediate, obtained via a Suzuki‐Miyaura cross‐coupling reaction, is the centerpiece of the synthesis.
Jasmin Janneschütz +7 more
wiley +1 more source
MICROBIOLOGICAL ACTIVITY DURING THE COMPOSTING OF WASTES FROM BROILER PRODUCTIVE CHAIN [PDF]
The quality of the carbon used as bulking agent in the composting process directly affects the dynamics of the waste degradation, which is governed by an active and diversified microbiota.
Francieli H. Bernardi +4 more
doaj +2 more sources
The impact of soil and vegetation management on ecosystem services in european almond orchards [PDF]
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Leijster, V.
core

