Results 11 to 20 of about 103,877 (206)
Cenizas, cementos y hormigones con cenizas
Materiales de Construcción, 1982 This paper describes the chemical composition and the morfological nature of pulverized coal ashes, as well as their physical characteristics. Their influences —actions and effects— on the main properties and behaviour of cements and concretes, and the more adequate conditions for their efficient use un them are also described.
José Calleja
openaire +5 more sources
Ecología Austral, 2018 Los disturbios generados por erupciones volcanicas son parte de la dinamica natural de los ecosistemas. La formacion de suelo y el reciclado de nutrientes dependen de la descomposicion tanto de la materia organica enterrada bajo las cenizas, como de la ...
M. Piazza +2 more
semanticscholar +3 more sources
Labelling fish diets with 15 N -Leucine for monitoring feed consumption and bio-distribution in Atlantic salmon. [PDF]
Vet Med Sci, 2022 Administration of the labelled food to fish allows knowing the real consumption of food by fish. It is possible to determine the distribution and metabolism of nitrogen coming from the labeled amino acids. The marker added to the food can be detected since hours post feed, until its complete elimination form fish, with high sensitivity.
Cortés-Quezada M +7 more
europepmc +2 more sources
Materiales de Construcción, 1984 Almost all the studies carried out on cements with the addition of flying ash refer to their characteristics and behaviours in pastes, mortars and concretes, always in relation with Portland cement. This time, there has been developed an experimental work oriented to relate between themselves the cements with additions of flying ash and of natural ...
Ossa M., Mauricio, Jorquera S., Hector
openaire +5 more sources
Descifrando cenizas. Persecución e indiferencia
Desde el Jardín de Freud, 2014 <p>Martínez de Murguía, Beatriz. Descifrando cenizas. Persecución e indiferencia. Barcelona: Paidós, 2002. 125 páginas.</p>
Clara Maritza Granados Villamil
doaj +7 more sources
Revista de Lenguas Modernas, 2010 Mientras paseaba su adormilada mirada en los alrededores pensó que todo parecía bañado en cenizas; tan gris y callado era todo en esos días? Y no era que le extrañara, simplemente por primera vez en tantos años logró ver en lo que su hermosa ciudad se había convertido.
Daniela Navarrete Ramos
openaire +2 more sources
Anales del Instituto de Arte Americano e Investigaciones Estéticas "Mario J. Buschiazzo", 2016 Este breve ensayo trata de lugares marginales –y a veces ocultos– de la ciudad de Buenos Aires, durante las tres primeras décadas del siglo XX. Los protagonistas fueron dos visitantes, cuya vida ganaría fama y renombre: Eugene O’Neill y Albert Londres.
Horacio Caride Bartrons
openaire +2 more sources
Phylogenetic Determination of Chenopodium quinoaBased on the Chloroplast Genes rbcL and matK
International Journal of Agronomy, Volume 2023, Issue 1, 2023., 2023 Chenopodium quinoa is an Andean species of great interest because of its excellent nutritional quality and great adaptability to different environmental conditions. In addition, the high phenotypic diversity has caused difficulties in the correct taxonomic identification, and there are few studies on the phylogenetic relationships of quinoa in Colombia.
Elsa Helena Manjarres-Hernández +2 more
wiley +1 more source
Journal of Geophysical Research: Solid Earth, Volume 127, Issue 6, June 2022., 2022 Abstract The impact of hazardous pyroclastic density currents (PDCs) increases with runout distance, which is strongly influenced by the mass flux. This article shows that the mass flux of a PDC may derive not only from vent discharge during the eruption, but also from partly hot, temporary stores (accumulations) of aerated pyroclastic material perched
Gilda Risica +4 more
wiley +1 more source