Buscar
Mostrando ítems 41-50 de 98833
Theoretical motivation for studying superstrings
(Sociedade Brasileira de Física, 2004-12-01)
I try to explain why many high-energy theoretical physicists are studying superstrings.
Theoretical motivation for studying superstrings
(Sociedade Brasileira Fisica, 2004-12-01)
I try to explain why many high-energy theoretical physicists are studying superstrings.
Theoretical study of the thermolysis reaction of Ethyl β-hydroxycarboxylates in the gas phase
(2002)
Theoretical studies on the thermolysis of three ethyl β-hydroxycarboxylates in the gas phase were carried out using ab initio theoretical methods, at the MP2/6-31G(d) and MP2/6-311++G(2d,p)//MP2/6-31G(d) levels of theory. ...
Theoretical study of MgO(001) surfaces: Pure, doped with Fe, Ca, and Al, and with and without adsorbed water
(Wiley-Blackwell, 2001-09-20)
Ab initio calculations of large cluster models have been performed in order to study water adsorption at the five-fold coordinated adsorption site on pure Mg(001) and MgO(001) surfaces doped with Fe, Ca, and Al. The geometric ...
Theoretical study of MgO(001) surfaces: Pure, doped with Fe, Ca, and Al, and with and without adsorbed water
(Wiley-Blackwell, 2001-09-20)
Ab initio calculations of large cluster models have been performed in order to study water adsorption at the five-fold coordinated adsorption site on pure Mg(001) and MgO(001) surfaces doped with Fe, Ca, and Al. The geometric ...
Learning Activity as a Means of Developing Theoretical Thinking Capacities
(2020-12-14)
The main purpose of this article is to discuss the development of capacities linked to theoretical thinking during the formation process of Learning Activity in students of the early years of elementary school. It considers ...
Interaction, Diffusion, and Fertility Transition in Costa Rica: Quantitative and Qualitative Evidence
(1999)
This chapter examines the role played by diffusion through social interaction in the Costa Rican fertility transition. The literature about the causes of fertility transition has traditionally focused on the socio-economic ...