Search results for "Opus"
showing 10 items of 346 documents
Certain advantages of Scopus compare with Web of Science in a bibliometric analysis related to smoking
2013
El objetivo de este trabajo es comparar entre Web of Science (WoS) y Scopus los indicadores bibliométricos básicos del área de tabaquismo de autores españoles en el período 2000-2009. Métodos: La búsqueda se realizó en el SCI-Expanded y Scopus (“smok*” OR “tobac*”). Resultados: La media total anual del nº de documentos fue de 41 ± 12 para WoS vs 60 ± 16 en Scopus (p = 0,007). Aumento progresivo del índice de colaboración. La media anual del índice de colaboración fue de 9,41 ± 2,73 en WoS vs 7,12 ± 1,52 en Scopus (p = 0,029). Mayor número de citas con el paso del tiempo en ambas bases de datos pero son más recientes las citas en Scopus, el índice citas/artículo fue mayor en WoS (WoS 14,47 v…
A global model for the estimation of transport costs
2019
This paper presents a model of transport cost determinants that corrects the specification problems observed in the transport cost equations in previous literature. The model includes freight transport supply and demand, as well as infrastructure quality and non-time-varying fixed effects related to the route, the exporting company, its strategy and the product. In addition, when defining the origin-destination routes, the model more appropriately accounts for economies of network and economies of scale. In order to build the database, 583 personal interviews were conducted over the course of 2011 with producing companies that ship goods and with the logistics operators. As a result, 305 ro…
Classification of Actual Sensor Network Deployments in Research Studies from 2013 to 2017
2020
Technologies, such as Wireless Sensor Networks (WSN) and Internet of Things (IoT), have captured the imagination of researchers, businesses, and general public, due to breakthroughs in embedded system development, sensing technologies, and ubiquitous connectivity in recent years. That resulted in the emergence of an enormous, difficult-to-navigate body of work related to WSN and IoT. In an ongoing research effort to highlight trends and developments in these technologies and to see whether they are actually deployed rather than subjects of theoretical research with presumed potential use cases, we gathered and codified a dataset of scientific publications from a five-year period from 2013 t…
Access to scientific information. A national survey of the Italian Society of Clinical Biochemistry and Laboratory Medicine (SIBioC).
2016
Abstract Background: Digital libraries are typically used for retrieving and accessing articles in academic journals and repositories. Previous studies have been published about the performance of various biomedical research platforms, but no information is available about access preferences. Methods: A six-question survey was designed by the Italian Society of Clinical Biochemistry and Laboratory Medicine (SIBioC) using the platform Google Drive, and made available for 1 month to the members of the society. The information about the survey was published on the website of SIBioC and also disseminated by two sequential newsletters. Results: Overall, 165 replies were collected throughout the …
Dimensions of Community Assets for Health. A Systematised Review and Meta-Synthesis
2021
Since Aaron Antonovsky’s salutogenesis theory and Morgan and Ziglio’s health assets model were first proposed, there has been a growing concern to define the resources available to the individual and the community to maintain or improve health and well-being. The aim of the present study was to identify the dimensions that characterise community assets for health. To this end, we conducted a systematised review with a meta-synthesis and content analysis of research or projects involving asset mapping in the community. Articles that met our eligibility criteria were: (1) based on the salutogenic approach and (2) described an assets mapping process and among their results, explained what, how…
E-learning and development of key competencies: a bibliometric study
2021
El aprendizaje electrónico (e-learning) es una modalidad educativa que vertebra, a través de diferentes herramientas y metodologías, el aprendizaje mediado por las tecnologías. Este estudio pretende, a partir de esta idea, revisar el impacto del aprendizaje electrónico en el desarrollo de las competencias clave desde un punto de vista bibliométrico y de contenido. Para ello, se analiza la producción científica relativa a estudios donde esta modalidad está al servicio del desarrollo de estas competencias, reflexionando así sobre los beneficios de los entornos flexibles y abiertos. Concretamente, se han analizado 255 artículos disponibles en la base de datos Scopus, bajo el criterio temporal …
Entrepreneurial ecosystems : a systematic literature review and research agenda
2020
PurposeThe emerging concept of entrepreneurial ecosystems has captured the attention of scholars, practitioners and policymakers. Although studies on entrepreneurial ecosystems continue to grow, their contributions are still disintegrated. Thus, the purpose of this paper is to present a systematic review of extant literature on entrepreneurial ecosystems and to develop a research agenda.Design/methodology/approachThe study deployed a systematic literature review of 51 articles obtained from three comprehensive databases of Web of Science, Google Scholar and Scopus. The analysis includes two phases. First, a descriptive account of research on entrepreneurial ecosystems and second, a content …
L'opuscolo novizianeo "De Spectaculis". Introduzione, traduzione e commento.
2011
Data from: Plant – herbivorous beetle networks: molecular characterization of trophic ecology within a threatened steppic environment
2015
DNA barcoding facilitates many evolutionary and ecological studies, including the examination of the dietary diversity of herbivores. In this study, we present a survey of ecological associations between herbivorous beetles and host plants from seriously threatened European steppic grasslands. We determined host plants for the majority (65%) of steppic leaf beetles (55 species) and weevils (59) known from central Europe using two barcodes (trnL and rbcL) and two sequencing strategies (Sanger for mono/oligophagous species and Illumina for polyphagous taxa). To better understand the ecological associations between steppic beetles and their host plants, we tested the hypothesis that leaf beetl…
Tadpole of Atelopus franciscus from French Guyana, with Comments on Other Larvae of the Genus (Anura: Bufonidae)
2005
The tadpole of Atelopus franciscus from French Guyana is described. It resembles other larvae of the genus, especially those displaying a color pattern of symmetrical light marks. Among them, A. franciscus is most similar to those tadpoles having submarginal papillae (i.e., Atelopus balios, Atelopus flavescens, Atelopus nanay, Atelopus tricolor). The tadpole of A. franciscus shares several similarities with the larva of A. flavescens from French Guyana but differs from it by being smaller in size and in certain measurement. The phylogenetic relevance of tadpole characters in Atelopus is discussed, including body proportions, submarginal papillae, length of upper beak.