Zobrazeno 1 - 10
of 21
pro vyhledávání: '"J. A. Alejandre"'
Autor:
Silvia Calvo, Ignacio Barbara, Juan Luis Menéndez Valderrey, José Manuel Rico Ordás, Carlos J. Martín Blanco, María A. Carrasco, Pedro Sánchez Gómez, José Sebastían Carrión, Miguel Ángel Carrión Vilches, J. A. Alejandre, Modesto Luceño, J. Martín Martín, Carlos Aedo, Joao Marcelo Alvarenga Braga, Pablo Vargas, Félix Muñoz Garmendia, Jochen Hess, Joachim Kadereit, Omar Fiz, Virginia Valcarcel, Jorge Martínez, Ernst Vitek, Christoph Dobes, Francisco Gómiz García, Paulo C. Silveira
Publikováno v:
Anales del Jardín Botánico de Madrid, Vol 58, Iss 2, Pp 351-365 (2000)
Externí odkaz:
https://doaj.org/article/76546d3bec224ac9815a03a114117094
Autor:
K. Helwig, L. Niemi, J.‐Y. Stenuick, J. C. Alejandre, S. Pfleger, J. Roberts, J. Harrower, I. Nafo, O. Pahl
Publikováno v:
Environmental Toxicology and Chemistry.
Publikováno v:
Educación Química. 4:46
Los compuestos organoplúmbicos son muy utilizados en la actualidad, todos conocemos el tetraetil plomo utilizado como antidetonante en gasolinas. Desafortunadamente, estos compuestos son a la vez responsables de gran parte de la contaminación en la
Publikováno v:
Educación Química. 6:216
Antes de iniciar la síntesis, es necesario refluir durante tres horas y destilar posteriormente 20 mL de biciclopentadieno, utilizando un equipo de destilación con columna vigreux. La fuente de nitrógeno se conecta a un matraz de tres bocas de 500
Publikováno v:
Phyton. 79:87-94
Publikováno v:
Computational Optimization and Applications. 27:83-93
The degree of difficulty is an important concept in classical geometric programming theory. The dual problem is often infeasible when the degree of difficulty is negative and little has been published on this topic. In this paper, an alternative proc
Publikováno v:
Mathematical and Computer Modelling. 31:61-78
In this article, we present an algorithm for the resolution of a nonlinear optimization problem, concretely the posynomial geometric programming model. The solution procedure that we develop extends the condensation techniques for geometric programmi
Publikováno v:
Materials Letters. 12:281-285
The chemical reactions between polyacrylic acid (PAA) and various divalent metal oxides (MO; M = Ca, Mg, Cu, Zn) were studied by Fourier transform infrared spectroscopy (FTIR). The results show clear evidence of chemical bonding between the polymer a
Autor:
J, Arroyo Alejandre
Publikováno v:
Demos (Mexico City, Mexico). (7)
The Guadalajara metropolitan area, containing approximately three million inhabitants in the municipios of Guadalajara, Zapopan, Tlaquepaque, Tonala, and El Salto, has high rates of population growth due to in-migration, natural increase, and annexat
Publikováno v:
Estudios demograficos y urbanos. 7(2-3)
"The authors attempt to present some empirical findings regarding a phenomenon which they chose to call the 'transition in migratory patterns'.... The general hypothesis states that: changes in migratory patterns are due to an interaction between tho