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Resistance to chemical attack of serra do barriga stock ornamental granites – Sobral/CEResistência ao ataque químico de granitos ornamentais do stock Serra do Barriga – Sobral/CE
(2020-01-01)
Here is presented results from resistance to chemical attack provided by four types of granitic stock Serra do Barriga, through the loss of luster, color variations, minerals alterations, beyond the influence of petrography. ...
Male behavior of Mischocyttarus cerberus (Hymenoptera, Vespidae) during attacks on the nest by ants
(2006-09-26)
The objectives of the present study were to verify if the males of the wasp Mischocyttarus cerberus participate in defense of the nest as they react to attack by ants, and to observe if they use chemical defense. First, ...
Male behavior of Mischocyttarus cerberus (Hymenoptera, Vespidae) during attacks on the nest by ants
(2006-09-26)
The objectives of the present study were to verify if the males of the wasp Mischocyttarus cerberus participate in defense of the nest as they react to attack by ants, and to observe if they use chemical defense. First, ...
Avaliação da durabilidade de concretos de alto desempenho frente ao ataque químico com vistas ao ambiente de ETE
(Universidade do Vale do Rio dos Sinos, 2020-12-22)
In Systems Sanitation, corrosion of concrete caused by attacks is a very common type of deterioration. Within this context, there is a search for such materials that minimize environmental impacts and improve the performance ...
Avaliação da durabilidade de concretos de alto desempenho frente ao ataque químico com vistas ao ambiente de ETE
(Universidade do Vale do Rio dos Sinos, 2020-12-22)
In Systems Sanitation, corrosion of concrete caused by attacks is a very common type of deterioration. Within this context, there is a search for such materials that minimize environmental impacts and improve the performance ...
Suicide nucleophilic attack: Reactions of benzohydroxamate anion with bis(2,4-dinitrophenyl) phosphate
(2009-07-17)
(Chemical Equation Presented) The reaction between the benzohydroxamate anion (BHO-) and bis(2,4-dinitrophenyl)phosphate (BDNPP) has been examined kinetically, and the products were characterized by mass and NMR spectroscopy. ...
Suicide nucleophilic attack: Reactions of benzohydroxamate anion with bis(2,4-dinitrophenyl) phosphate
(2009-07-17)
(Chemical Equation Presented) The reaction between the benzohydroxamate anion (BHO-) and bis(2,4-dinitrophenyl)phosphate (BDNPP) has been examined kinetically, and the products were characterized by mass and NMR spectroscopy. ...
Effect of water renewal on dominance hierarchy of juvenile Nile tilapia
(ELSEVIER SCIENCE BV, 2008)
Nile tilapia social position (Oreochromis niloticus) can be mediated by multiple channels, including chemical communication. Absence of chemical cues in the environment prevents hierarchical settlement among pairs, and ...