Miguel de Santiago y sus cuadros de S. Agustín.

Cover-title.

An estimate of the number of tropical tree species

The high species richness of tropical forests has long been recognized, yet there remains substantial uncertainty regarding the actual number of tropical tree species. Using a pantropical tree inventory database from closed canopy forests, consisting of 657,630 trees belonging to 11,371 species, we use a fitted value of Fisher's alpha and an approximate pantropical stem total to estimate the minimum number of tropical forest tree species to fall between similar to 40,000 and similar to 53,000, i.e., at the high end of previous estimates. Contrary to common assumption, the Indo-Pacific region was found to be as species-rich as the Neotropics, with both regions having a minimum of similar to 19,000-25,000 tree species. Continental Africa is relatively depauperate with a minimum of similar to 4,500-6,000 tree species. Very few species are shared among the African, American, and the Indo-Pacific regions. We provide a methodological framework for estimating species richness in trees that may help refine species richness estimates of tree-dependent taxa.

Temas de historia argentina y americana, 2007, n° 10 (número completo)

Un notable historiador eclesiástico argentino, el canónigo doctor Américo A. Tonda / Miguel Ángel De Marco -- Carlos Vega, a cuarenta años de su muerte (1966-2006) / Santiago Miguel Giacosa -- La situación del trabajador español en la Argentina a principios del siglo XX / Rosario Güenaga -- El aporte extranjero a la conformación de las tripulaciones de las escuadras argentinas en las Guerras de Independencia y del Brasil, 1814-1830 / Julio M. Luqui-Lagleyze -- Ricardo Zorraquín Becú y la crisis del imperio hispano indiano / Eduardo Martiré -- España y la emergencia del poder americano, 1902-1936 / José Luis Neila Hernández -- El retorno de Perón al poder reflejado en la prensa israelí – Argentina, Israel y los judíos, 1973-74 / Raanan Rein -- Juan Moreira: la transformación de un gaucho cuchillero en personaje de ópera italiana / Juan María Veniard -- Reseñas Bibliográficas

Actividades alternativas al currículo ordinario.

El trabajo no ha sido publicado

Iniciativas en transición : nuevos escenarios para una educación ambiental comunitaria

El artículo forma parte de un dossier titulado: Educar con la naturaleza.

Makespan minimization in a job shop with a batch processing machine

A job shop with one batch processing and several discrete machines is analyzed. Given a set of jobs, their process routes, processing requirements, and size, the objective is to schedule the jobs such that the makespan is minimized. The batch processing machine can process a batch of jobs as long as the machine capacity is not violated. The batch processing time is equal to the longest processing job in the batch. The problem under study can be represented as Jm:batch:Cmax. If no batches were formed, the scheduling problem under study reduces to the classical job shop scheduling problem (i.e. Jm:: Cmax), which is known to be NP-hard. This research extends the scheduling literature by combining Jm::Cmax with batch processing. The primary contributions are the mathematical formulation, a new network representation and several solution approaches. The problem under study is observed widely in metal working and other industries, but received limited or no attention due to its complexity. A novel network representation of the problem using disjunctive and conjunctive arcs, and a mathematical formulation are proposed to minimize the makespan. Besides that, several algorithms, like batch forming heuristics, dispatching rules, Modified Shifting Bottleneck, Tabu Search (TS) and Simulated Annealing (SA), were developed and implemented. An experimental study was conducted to evaluate the proposed heuristics, and the results were compared to those from a commercial solver (i.e., CPLEX). TS and SA, with the combination of MWKR-FF as the initial solution, gave the best solutions among all the heuristics proposed. Their results were close to CPLEX; and for some larger instances, with total operations greater than 225, they were competitive in terms of solution quality and runtime. For some larger problem instances, CPLEX was unable to report a feasible solution even after running for several hours. Between SA and the experimental study indicated that SA produced a better average Cmax for all instances. The solution approaches proposed will benefit practitioners to schedule a job shop (with both discrete and batch processing machines) more efficiently. The proposed solution approaches are easier to implement and requires short run times to solve large problem instances.

El enfoque de sostenibilidad en los planes de salud de las comunidades autónomas: el desarrollo sostenible como oportunidad

Objetivo: Determinar el grado de orientación de los planes de salud de las comunidades autónomas a las tres dimensiones habituales de sostenibilidad: económica, social y medioambiental; tanto en el nivel discursivo general como en las diferentes áreas de intervención. Método: Investigación cualitativa mediante análisis de contenido de una amplia muestra de documentos. La metodología específica es el análisis de sensibilidad simbólica y operativa realizado a una muestra de once planes de salud de España. Resultados: Los aspectos sociales, tales como los determinantes o los grupos más vulnerables, reciben cada vez más atención por parte del planificador sanitario, si bien hay espacio para fortalecer la atención a las cuestiones medioambientales y dotar de forma específica a las actuaciones en términos económicos. Conclusiones: el análisis evidencia el estado incipiente en el que se encuentran los planes de salud como documentos de planificación estratégica que integren aspectos económicos, sociales y ambientales con los cuales contribuir a la sostenibilidad de los diferentes sistemas sanitarios del país.

Relación de la carrera literaria, méritos y servicios del Dr. D. Miguel Zurita : cura propio de la mayor de Santiago de la ciudad de Querétaro ...

UANL

Parte oficial que el Exmo. Sr. General en gefe D. Miguel Miramón dirige al Supremo Gobierno dando cuenta de las operaciones practicadas por el 1er. cuerpo del ejército desde su... por el faccioso D. Santiago Vidaurri.

UANL

Escritura de venta del esclavo José Santiago a Miguel Masústegui

Escritura de venta de un esclavo llamado José Santiago de edad de 9 años por María Micaela de Rojas vecina de Bogotá, al rector del Colegio Mayor del Rosario Miguel Masústegui en cien pesos de a ocho reales.