The United States and Latin America and the Caribbean: Highlights of economics and trade

Foreword by Alicia Bárcena

Development of eco-efficient and sustainable urban infrastructure in Asia and Latin America: eco-efficiency and sustainable infrastructure in the United States and Canada

Incluye bibliografía

Trade in services negotiations: a review of the experience of the United States and the European Union in Latin America

Includes bibliography

A comparative study of health care policy in the United States and Canada: what policymakers in Latin America might and might not learn from their neighbors to the North

Includes bibliography

Quantum mechanical modeling of excited electronic states and their relationship to cathodoluminescence of BaZrO3

First-principles calculations set the comprehension over performance of novel cathodoluminescence (CL) properties of BaZrO3 prepared through microwave-assisted hydrothermal. Ground (singlet, s*) and excited (singlet s** and triplet t**) electronic states were built from zirconium displacement of 0.2 Å in {001} direction. Each ground and excited states were characterized by the correlation of their corresponding geometry with electronic structures and Raman vibrational frequencies which were also identified experimentally. A kind of optical polarization switching was identified by the redistribution of 4dz2 and 4dxz (Zr) orbitals and 2pz O orbital. As a consequence, asymmetric bending and stretching modes theoretically obtained reveal a direct dependence with their polyhedral intracluster and/or extracluster ZrO6 distortions with electronic structure. Then, CL of the as-synthesized BaZrO3 can be interpreted as a result of stable triplet excited states, which are able to trap electrons, delaying the emission process due to spin multiplicity changes. © 2013 AIP Publishing LLC.

Progress report on meetings, workshops, seminars convened and technical assistance rendered to member states and regional institutions (covering the period 1 January 2004 to 30 April 2005)

Includes bibliography

Ethnic poverty and social vulnerability data sources from the census of the United States and the American community survey

Includes bibliography

Open regionalism, nation-states and the learning process of integrating into a global trading system

Includes bibliography

The United States and Latin America and the Caribbean: highlights of economy and trade

Document prepared on the occasion of the visit of President Barack Obama to Brazil, Chile and El Salvador in March 2011