Lead-germanate glasses and fibers: A practical alternative to tellurite for nonlinear fiber applications

We report on the fabrication of novel lead-germanate glasses and fibers. We have characterized these glasses in terms of their thermal properties, Raman spectra and refractive indices (both linear and nonlinear) and present them as viable alternatives to tellurite glasses for applications requiring highly nonlinear optical fibers. © 2013 Optical Society of America.

A comparative guide to the Chile-United States Free Trade Agreement and the Dominican Republic-Central America-United States Free Trade Agreement: a study by the Tripartite Committee

Includes bibliography

An annotated guide to the United States Omnibus Trade and Competitiveness Act of 1988 = Guía anotada sobre la Ley General de Comercio y Competitividad estadounidense de 1988

Incluye Bibliografía

Guía para la cooperación técnica entre países en desarrollo (CTPD): oferta y directorio de instituciones = Guide to technical co-operation among developing countries (TCDC): TCDC supply and directory of institutions

Proporciona orientacion a demandantes potenciales de CTPD y presenta una vision completa sobre las actividades de oferta en la region. Incluye 1) informacion por paises: politicas, procedimientos, capacidad nacional y experiencias, 2) informacion por areas de especializacion: agricultura y pesca, administracion y desarrollo, educacion, industria, recursos naturales, transporte y comunicaciones, salud, y 3) directorio de instituciones especializadas en CTPD.

Guía revisada para la cooperación técnica entre países en desarrollo (CTPD): oferta y directorio de instituciones = Revised guide to technical co-operation among developing countries (TCDC): supply and directory of institutions

Publicación bilingüe

A guide to water resources administration in the countries of Latin America and the Caribbean

Includes bibliography

Guide to the computerization of population documentation storage and retrieval systems; draft

Includes bibliography

3-D Technology Used to Accurately Understand Equine Ileocolonic Aganglionosis

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Identification guide to some Diaptomid species (Crustacea, Copepoda, Calanoida, Diaptomidae) of "de la Plata" River Basin (South America)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Genomic data as the hitchhiker's guide to cattle adaptation: tracking the milestones of past selection in the bovine genome

The bovine species have witnessed and played a major role in the drastic socio-economical changes that shaped our culture over the last 10,000 years. During this journey, cattle hitchhiked on human development and colonized the world, facing strong selective pressures such as dramatic environmental changes and disease challenge. Consequently, hundreds of specialized cattle breeds emerged and spread around the globe, making up a rich spectrum of genomic resources. Their DNA still carry the scars left from adapting to this wide range of conditions, and we are now empowered with data and analytical tools to track the milestones of past selection in their genomes. In this review paper, we provide a summary of the reconstructed demographic events that shaped cattle diversity, offer a critical synthesis of popular methodologies applied to the search for signatures of selection (SS) in genomic data, and give examples of recent SS studies in cattle. Then, we outline the potential and challenges of the application of SS analysis in cattle, and discuss the future directions in this field.

QCD sum rule approach to the s->d gamma contribution to the Omega(-)->Xi(-)gamma radiative decay

QCD sum rules are used to calculate the contribution of the short-distance single-quark transition s-->d gamma to the amplitudes of the hyperon radiative decay Omega(-)-->Xi(-) gamma. We reevaluate the Wilson coefficient of the effective operator responsible for this transition. We obtain a branching ratio which is comparable to the unitarity limit.