Rio Bravo: A bilingual journal of international studies Fall 1991 v.1 no.1

Río Bravo: An Introduction -- Mexican Labor is Not Cheap / by George Baker -- Enfoques teóricos para el estudio de la cultura en la frontera de Mexico con Estados Unidos / José Carlos Lozano -- Los locos del barrio o la ostentación del estigma: Identidad social y frontera en una pandilla de Matamoros, Tamaulipas / by Victor Zúñiga -- English as a Second Language: The Teachers\u27 Perspective / by Pamela McCurdy -- Decentralization Works: China and Mexico Make it Happen in Health Care Delivery / by Paul Villas, Janet L. Lile, and Hector Pérez-Coronado --U.S. Prisoners in Border Prisons in Tamaulipas, Mexico / by J. Michael Olivero --Lampazos and the Mexican Revolution / by Ward S. Albro IIIhttps://scholarworks.utrgv.edu/riobravojournal/1000/thumbnail.jp

Rio Bravo: A bilingual journal of international studies Fall 1992 v.2 no.1

Usos del Suelo y Configuración de la Estructura Urbana en Ciudad Juárez, Chih., (1960-1990) / by Cesar M. Fuentes -- César Chávez, the United Farm Workers and Mexican Immigration / by Richard Griswold del Castillo -- Texas Higher Education and Border Funding Inequities: Implication for Border Universities and Transborder Cooperation / by Ellwyn R. Stoddard -- Texas Discovers Its Mexican Neighbors: Border-State Governmental Relations, 1978-1991 / by E. V. Niemeyer, Jr. -- The Mexican Crisis and the Segmented Labor Market of the Lower Rio Grande Valley of Texas / by Joseph Spielberg Benitez -- Medicalization of the U.S.-Mexico Border: Is it Really Needed / by Paul Villas and Erin Frew -- Reviews / Reseñas -- Guia para los Autores / Author\u27s Guidelines.https://scholarworks.utrgv.edu/riobravojournal/1002/thumbnail.jp

Rio Bravo: A bilingual journal of international studies Spring 1992 v.1 no.2

Higher Education and Borderlands Telecommunications in Texas, California, and Arizona / Armando A. Arias, Jr. and Beryl Bellman -- Tamaulipas - la Ausencia de Oposicion Politica y la Persistencia de los Factores Culturales Corporativos - el Caso de Matamoros / Vicente Sanchez-Mungia -- Sindicalismo Tradicional en Maquiladoras - el Caso de Matamoros / Cirila Quintero Ramirez -- Estancia temporal de migrantes indocumentados en Tijuana - Una estimacion sobre su aportacion a la economia de la ciudad / Maria Eugenia Anguiano -- Latin America - Illusions and Reality / Rafael A. Lecuona -- George Baker\u27s \u27Mexican Labor is Not Cheap\u27 - a Rejoinder and Critical Commentary / Ellwyn R. Stoddard -- XV Simposio de Historia y Antropologia de Sonora. Memoria. 3 Vols, Hermosillo, Sonora, Mexico, Instituto de Investigaciones Historicas de la Unison, 1991 -- La Revista Cultura Norte -- Borderlife Project -- Author\u27s Guidelines - Rio Bravo.https://scholarworks.utrgv.edu/riobravojournal/1001/thumbnail.jp

Rio Bravo: A journal of research and issues Spring 1993 v.2 no.2

Nuevo Laredo, Tamaulipas: Cincuenta años de crecimiento urbano 1940-1990 / by Eduardo Alarcó Cantú -- Cambios en la estructura corporativa en Baja California: Un estudio de los gremios de taxistas de la CTN en Tijuana / by Tania Hernánez Vicencio -- Beyond the Nueces: The Early Geographical Identity of South Texas / by Daniel D. Arreola -- The Ramifications of IRCA Employer Sanctions : A Case Study of An East Texas Community / by Gayle K. Berardi -- Improving Living Conditions in Colonias in the Rio Grande Valley of South Texas / by J. Michael Patrick and Armando Alonso -- Means and Ends: Two Border-Blasters / by Jim B. Shattuck -- Announcement: Official Creation of the Río Bravo Association.https://scholarworks.utrgv.edu/riobravojournal/1004/thumbnail.jp

Rio Bravo: A journal of research and issues Spring 1994 v.3 no.2

Introduction: Minutes of Rio Bravo Association Meeting -- The Reciprical Trade Agreements Act of 1934--and the Development of Economic Policy Toward Mexico / by Raquel Aviña Hunter -- Reacciones nacionalistas a la penetración cultural estadounidense en Quebec y México / by Lawrence Douglas Taylor Hansen -- Boca de Potrerillos and the Prehistory of Northeastern Mexico / by Wm. Breen Murray -- La política comercial y antidrogas en Laredo, Texas / by José María Ramos -- Una estimación del crecimiento de la población de origen Mexicano que reside en los Estados Unidos, 1850-1990 / by Rodolfo Corona Vásquez -- Anglo-Hispanic Relations in South Texas Schools from 1945 to 1993 - A Triangulated Profile / by Chad Richardson, María Olivia Villarreal-Solano, and Cruz C. Torres -- Reviews / Reseñas.https://scholarworks.utrgv.edu/riobravojournal/1005/thumbnail.jp

The Facioscapulohumeral Syndrome: A Report of Two Cases

Two patients developed progressive muscle weakness in adult life. The initial diagnosis of polymyositis was made in both cases, but subsequent studies and the distribution of muscle involvement suggested facioscapulohumeral myopathy. Other investigators have proposed that this syndrome may result from either genetic or acquired causes. In our patients, the disorder was probably a sequela of polymyositis

Thermal Jeans fragmentation within 1000 AU in OMC-1S

We present subarcsecond 1.3 mm continuum ALMA observations towards the Orion Molecular Cloud 1 South (OMC-1S) region, down to a spatial resolution of 74 AU, which reveal a total of 31 continuum sources. We also present subarcsecond 7 mm continuum VLA observations of the same region, which allow to further study fragmentation down to a spatial resolution of 40 AU. By applying a Mean Surface Density of Companions method we find a characteristic spatial scale at ~560 AU, and we use this spatial scale to define the boundary of 19 `cores' in OMC-1S as groupings of millimeter sources. We find an additional characteristic spatial scale at ~2900 AU, which is the typical scale of the filaments in OMC-1S, suggesting a two-level fragmentation process. We measured the fragmentation level within each core and find a higher fragmentation towards the southern filament. In addition, the cores of the southern filament are also the densest (within 1100 AU) cores in OMC-1S. This is fully consistent with previous studies of fragmentation at spatial scales one order of magnitude larger, and suggests that fragmentation down to 40 AU seems to be governed by thermal Jeans processes in OMC-1S.Comment: Accepted to Ap

Rio Bravo: A journal of research and issues Fall 1993 v.3 no.1

Introduction / The editors -- Clausura de la reunión anual de la Asociación Río Bravo -- Condicionantes ecoómico-políticos en la historia del periodismo fronterismo - El caso de El Mañana de Nuevo Laredo / Jose Carlos Lozano Rendon -- De la esccondida Nayarit a más allá de Los Angeles / Lourdes C. Pacheco Ladron de Guevara -- New Yorkers on the Texas Border: The Seventh Regiment, New York National Guard in the Rio Grande Valley, 1916 / Carl Henry Marcoux -- El Movimiento Villista visto por la Diplomacia Española / Oscar Flores Torres -- Sindicatos agrícolas en el Norte de Tamaulipas y el Sur de Texas: Antecedentes Históricos / Cirila Quintero Ramirez -- La historiografía chicana contemporánea - Nuevos Temas, Enfoques, y problemas para una adecuada teoría y praxis / Sonia Calderoni Bonleux -- Announcement: Official creation of the Rio Bravo Association -- Guia para los Autores: Rio Bravo.https://scholarworks.utrgv.edu/riobravojournal/1003/thumbnail.jp

Nickel oxide-based heterostructures with large band offsets

We present research results on the electronic transport in heterostructures based on p-type nickel oxide (NiO) with the n-type oxide semiconductors zinc oxide (ZnO) and cadmium oxide (CdO). NiO is a desirable candidate for application in (opto-)electronic devices. However, because of its small electron affinity, heterojunctions with most n-type oxide semiconductors exhibit conduction and valence band offsets at the heterointerface in excess of 1 eV. ZnO/NiO junctions exhibit a so called type-II band alignment, making electron-hole recombination the only process by which a current can vertically flow through the structure. These heterojunctions are nevertheless shown to be of practical use in efficient optoelectronic devices, as exemplified here by our UV-converting transparent solar cells. These devices, although exhibiting high conversion efficiencies, suffer from two light-activated recombination channels connected to the type-II interface, one of which we identify and analyse in more detail here. Furthermore, CdO/NiO contacts were studied - a heterostructure with even larger band offsets such that a type-III band alignment is achieved. This situation theoretically enables the development of a 2-dimensional electronic system consisting of topologically protected states. We present experiments demonstrating that the CdO/NiO heterostructure indeed hosts a conductive layer absent in both materials when studied separately