Results 41 to 50 of about 2,091,643 (299)

¿CÓMO HACER UNA BASE DE DATOS OCUPANDO UNA PLANILLA DE CÁLCULO DE EXCEL?

open access: yesNeumología Pediátrica, 2021
Una de las etapas fundamentales en el desarrollo de un protocolo de investigación es la construcción de la base de datos. Su diseño detallado y el llenado cuidadoso ayudan a mejorar la confiabilidad de los resultados obtenidos a partir del análisis ...
Gerardo Weisstaub
doaj   +1 more source

Base de datos Electores de Costa Rica (1897-1909).

open access: yesDiálogos, 2011
La Constitución francesa de 1791 definió la estructura básica de las votaciones indirectas al diferenciar entre ciudadanos y electores: los primeros, en asambleas primarias, escogían a un número reducido de los segundos, quienes elegían, a su vez, a los ...
Iván Molina Jiménez
doaj   +3 more sources

Geographic Information Systems: concept, advantages and possibilities in the field of restoration

open access: yesLoggia, Arquitectura & Restauración, 2012
Architectonic restoration and conservation works require documentation and management tasks that can be stored in an orderly manner in an information system that permits efficient and independent management both of the nature of the data and its formats (
Ana Elena Seguí   +3 more
doaj   +1 more source

The extension of the taxon cycle model to island plants: insights from the Canarian vascular flora

open access: yesBiological Reviews, EarlyView.
ABSTRACT Taxon cycle models describe eco‐evolutionary patterns of lineage colonization, diversification, and decline across archipelagos, inferring an important role for competition amongst ecologically similar taxa in driving concurrent niche changes.
José María Fernández‐Palacios   +2 more
wiley   +1 more source

Integrando minería de reglas de asociación en PostgreSQL

open access: yesSerie Científica de la Universidad de las Ciencias Informáticas, 2022
El desarrollo de las tecnologías y la informatización de las empresas ha incrementado el cúmulo de información almacenada en las bases de datos dificultando el proceso de análisis de estas manualmente, por lo cual es necesario utilizar técnicas como la ...
Alfredo Yunior Montero Oconor   +2 more
doaj   +4 more sources

BASE DE DATOS PARA SIG [PDF]

open access: yes, 2016
GUÍA ...
BERNAL DAVILA TOMAS ANGEL
core  

Sustainability in Italian Dining: A Comparative Study of Perceptions in Full‐Service Restaurants and Agritourism

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study explores how sustainability is perceived and prioritized by consumers within full‐service restaurants and rural agritourism settings in Italy, examining the socio‐cultural and economic role of the HoReCa sector in promoting sustainable practices and analyzing gender and generational differences in consumer behavior.
Roberta Minazzi   +3 more
wiley   +1 more source

[COVID-19 vaccine adverse events in a population aged 5-17 years: A study from the VAERS database]. [PDF]

open access: yesAn Pediatr (Barc), 2023
Villa-Zapata L   +4 more
europepmc   +2 more sources

Descubriendo Patrones Craneofaciales Usando Datos Cefalométricos Multivariados para la Toma de Decisiones en Ortodoncia [PDF]

open access: yes, 2013
Indexación: Web of Science; Scielo.The aim was to find craniofacial morphology patterns in a multivariate cephalometric database using a clustering technique.
A. Ruz, Gonzalo   +2 more
core   +1 more source

Comprehensive Analysis of the Degradation Phenomena of Proton Exchange Membrane Water Electrolyzers with Iridium on Antimony Tin Oxide Anodes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study examines the structural and chemical evolution of low‐loaded Ir/ATO anodes during PEM water electrolysis under realistic conditions. Iridium dissolution is largely suppressed. In the early stages, both ionomer and support degradation are detected. Morphological reorganization occurs at the interface between the anode catalyst layer (ACL) and
Sambal Shashank Ambu   +11 more
wiley   +1 more source

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