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Este texto se ha elaborado para dar soporte a un curso sobre Bases de Datos orientado a las Ingenierías Informáticas. Los cuatro primeros capítulos realizan un estudio del modelo relacional: la estructura de datos, las reglas para mantener la integridad de la base de datos y los lenguajes relacionales, que se utilizan para manipular las bases de datos.
openaire +2 more sources
La presente publicación constituye un producto del Grupo de Trabajo Especializado de Base de Datos (GTE-BD) de los cruceros regionales perteneciente a la Comisión Permanente del Pacífico Sur (CPPS), en el cual participaron instituciones de Chile ...
core
Comparative review of entanglement risk assessments for cetacean conservation and management
Abstract Cetacean entanglement in fishing gear remains a major global threat that exposes persistent gaps in how fisheries management frameworks manage risk to nontarget species. Ecological risk assessment (ERA) offers a structured way to link exposure and consequences to an explicit statement of risk, but entanglement risk assessments vary widely in ...
Laura Joan Feyrer +2 more
wiley +1 more source
Effects of restoration practices on biodiversity in temperate and boreal forests
Abstract Several restoration practices are used to mitigate and compensate for the negative effects of large‐scale forestry on biodiversity in temperate and boreal forests. A comprehensive synthesis of the benefits of these practices across taxa is missing. We conducted a systematic review and meta‐analysis on this topic.
Malin Tälle +2 more
wiley +1 more source
La Universidad de las Ciencias Informáticas, específicamente el Centro de Desarrollo Industrial perteneciente a la Facultad 4, conjuntamente con la empresa Cuba-Petróleo, desarrolló el Sistema Integral de Perforación de Pozos.
Dayana Leticia López Chávez +1 more
doaj
ABSTRACT: The main database components, as genuine examples of the historical, information systems, are being exposed. These are the sources of historical evidence and their themes: personal, bibliographical and institutional. The existence of such information possibilities within new technological tools, as Internet, gives seopc for special treatment ...
openaire +2 more sources
Conjunto de datos: PUC Chile Shear Wall Database
Base de datos que contiene los resultados de múltiples ensayos de muros realizados en el Laboratorio de Estructuras del Departamento de Ingeniería Estructural y Geotécnica ...
Pontificia Universidad Católica de Chile. Departamento de Ingeniería Estructural y Geotécnica +1 more
core +1 more source
Impact of global change on the distribution of mountain mammals and birds
Abstract Climate change and land‐use changes are key drivers of global biodiversity loss. Many species are shifting to higher elevations or latitudes in response to global warming, often encountering unfavorable land‐use conditions during the shift. These changes can lead to reduced range size and increased extinction risks, particularly for mountain ...
Chiara Dragonetti +5 more
wiley +1 more source
El presente trabajo permitió el desarrollo de diferentes mercados de datos para proporcionar el acceso a datos históricos de los departamentos Procesos Penales y Gestión de Cuadros y Personal de Apoyo de la Fiscalía General de la República.
Abel Andres Irsula Tumbarell
doaj
Key agroecosystems for the conservation of amphibians and reptiles in Europe
Abstract Agricultural expansion and intensification are driving amphibian and reptile declines worldwide. However, sustainably managed agroecosystems can support a high diversity of herpetofauna, which play a key role in pest control, reducing crop damage.
Andrea Dalpasso +4 more
wiley +1 more source

