1,722,415 research outputs found
Cladistic revision of Cretaceous Brachylepadomorpha and Verrucomorpha dataset
No full textThis dataset supports the publication by Andy S. Gale & S U. Vidovic "The origins of major sessile cirripede groups; a revision of Cretaceous Brachylepadomorpha and Verrucomorpha" in Journal of Systematic Palaeontology
DOI: 10.1080/14772019.2023.2258370
This dataset comprises the TNT script to run a cladistic analysis of sessile cirripede groups and bootstrap resampling with 1000 replicates; the output files from TNT; the supporting Nexus file; and an R script for post-analysis of the tree to calculate the Gap Excess Ratio (GER).
The cladistic analysis comprises 48 characters, one of which is continuous, all others were treated as unordered with equal weights. The TNT script also contains instructions to run an implied weights analysis.
To successfully execute the TNT script, the user will need to include the correct file path to their own copy of Stats.run, a TNT script for calculating the ensemble consistency index and retention index.
TNT scripts can be given a .tnt extension and can be read by TNT and Mesquite. Nexus files can be given a .nex extension and can be read by Mesquite and TNT. R files can be given a .r extension and can be run in RStudio. The output log can be read in plain text, .tre and .nex output files can be opened by all the software used in this study.
Contributions to this dataset:
Gale made intellectual contributions with respect to the anatomy, systematics and stratigraphic occurrence of sessile cirripede groups. Gale: co-designed the analysis; wrote the characters; coded the matrix.
Vidovic made intellectual contributions with respect to cladistic analysis and post-analysis. Vidovic: wrote the dataset; co-designed and executed the analysis; wrote the scripts and functions; created the files; edited the characters; coded the matrix.</span
Dataset for tree congruence: quantifying similarity between dendrogram topologies
No full textThis dataset comprises 40 simulated dendrograms generated from MRPs and retaining suboptimal trees. There are four sets of dendrograms, each set comprises 10 dendrograms. The sets of dendrograms have 11, 21, 31 and 41 terminal nodes respectively. The sets of dendrograms were analysed using CRI (Vidovic & Martill 2017), MASTxCF (New), CF (Colless 1980), R-F (Robinson & Foulds 1981), Mickevich’s CIM (Mickevich 1980), Rohlf’s CI1 (Rohlf 1982), Weighted CF (Colless 1980), and SPR distances (Goloboff 2008). Additionally, Kendall’s tau-b was used to measure the concordance between the 1,620 results and Spearman’s rho was used to confirm those findings.
CF, MASTxCF, Weighted CF, CIM and CI1 were generated in PAUP. MASTxCF was manually calculated from information obtained in PAUP but an R script was subsequently written and the results were recalculated, as were the CF indices. The SPR distances, one of the R-F metrics, and distortion coefficient were calculted in TNT. The CRI and R-F distances were calculated in R only. The procedures for the CRI, MASTxCF, CF and R-F are given.</span
Descripción de la provincia de Maracaibo, hecha al consulado de caracas por el diputado consular José Domingo Rus. Con fecha 17 de mayo de 1794.
Get PDFDescription of the province of Maracaibo, made to the consulate of Caracas by the consular deputy José Domingo Rus. Dated May 17, 1794. by Jorge Fymark Vidovic López.Descripción de la provincia de Maracaibo, hecha al consulado de caracas por el diputado consular José Domingo Rus. Con fecha 17 de mayo de 1794. por Jorge Fymark Vidovic Lópe
Reseña del Libro: Meditaciones de Marco Aurelio
No full textBook Review: Meditations of Marcus Aurelius, by Jorge Vidovic.Reseña del libro: Meditaciones de Marco Aurelio, a cargo de Jorge Vidovic
Reseña del Libro: Meditaciones de Marco Aurelio
Get PDFReseña del libro: Meditaciones de Marco Aurelio, a cargo de Jorge Vidovic.Book Review: Meditations of Marcus Aurelius, by Jorge Vidovic
Tree congruence: quantifying similarity between dendrogram topologies
No full textTree congruence metrics are typically global indices that describe the similarity or dissimilarity between dendrograms. This study principally focuses on topological congruence metrics that quantify similarity between two dendrograms and can give a normalised score between 0 and 1. Specifically, this article describes and tests two metrics the Clade Retention Index (CRI) and the MASTxCF which is derived from the combined information available from a maximum agreement subtree and a strict consensus. The two metrics were developed to study differences between evolutionary trees, but their applications are multidisciplinary and can be used on hierarchical cluster diagrams derived from analyses in science, technology, maths or social sciences disciplines. A comprehensive, but non-exhaustive review of other tree congruence metrics is provided and nine metrics are further analysed. 1,620 pairwise analyses of simulated dendrograms (which could be derived from any type of analysis) were conducted and are compared in Pac-man piechart matrices. Kendalls tau-b is used to demonstrate the concordance of the different metrics and Spearmans rho ranked correlations are used to support these findings. The results support the use of the CRI and MASTxCF as part of a suite of metrics, but it is recommended that permutation metrics such as SPR distances and weighted metrics are disregarded for the specific purpose of measuring similarity
COAF Open Access block grant return 2018-2019 University of Southampton
No full textList of articles that UoS paid for with COAF OA fund monies during 01/10/2018 to 30/09/2019. Contains financial information, Grant numbers, dates of acceptance/publication, DOIs and licence details
Proceso presupuestal en expediente técnico en las obras públicas del Alto Piura
No full textLa investigación determinó las limitaciones en cuanto al proceso presupuestal del expediente técnico de obras Públicas del Alto Piura, 2019; investigación tipo descriptiva, enfoque cualitativo; interpretativo propulsa propuesta mediante la descripción de lo planteado en los expedientes técnicos, viabilizarlos para dar celeridad en las etapas presupuestales de obra, utilizando análisis documental y opiniones de los 8 profesionales del área de obras, estableciendo que las limitaciones radican en un expediente técnico deficiente, conllevando a presupuestos que difieren del contexto donde se desarrolla las obras PEIHAP,
Atentamente;
Dr. Jorge Fymark Vidovic López
https://orcid.org/0000-0001-8148-4403
Director Editorial
https://www.edicionesclio.com/Fundación Ediciones Clío/ Venezuela ISBN: 978-980-7984-79-9 Depósito Legal: ZU2000016
Aprendizaje de la Bibliotecología. Modelos y enfoques.
No full textEste trabajo compara los diferentes modelos de aprendizaje, enfatizando en la bibliotecología como disciplina que orienta los procesos de organización y difusión de contenidos. También describe cómo se entiende el aprendizaje en proyectos educativos universitarios y diseños curriculares en Colombia y Venezuela. El estudio permitió proponer un enfoque integrado del aprendizaje que requiere decisiones pedagógicas y didácticas, como la formación docente, que es esencial en la formación bibliotecológica. El aprendizaje se presenta como el ADN de esta disciplina.
Atentamente;
Dr. Jorge Fymark Vidovic López
https://orcid.org/0000-0001-8148-4403
Director Editorial
https://www.edicionesclio.com/Libro de Acceso abiert
Evaluation of the most suitable mode of transport under Uncertainty. Dempster Shafer Theory applied to Analytical Hierarchy Process and Transformable Belief Model
Get PDFThe main goal of this work is to formulate a mathematical model of a decision support system for choosing the most suitable mode of transport to implement within a metropolitan context, considering uncertainty and ambiguity embedded in transportation problems. The model should consider not only economic parameters such as transport costs, production costs, and transport demand but, above all, environmental and social parameters, which define the quality of the transport service. The study applies a hybrid approach based on two different theories: the Analytical Hierarchy Process (AHP) (Saaty, 1980) and the Evidence- or Dempster-Shafer-Theory (DST) (Dempster 1967; 1968; Shafer, 1976). This is the first time that this methodology is used in the field of local public transport. AHP is used to structure the transportation problem and to define the criteria and alternatives. We used the AHP along with the mathematical Theory of Evidence, called also Dempster-Shafer Theory (DST), to evaluate the users' uncertainty in judgments, and to fuse data coming from diverse sources. Finally, we used the Transformable Belief Model (Smets, 1999) to quantify the probability embedded in belief functions.
In the first part of this study, we have carried out a survey to investigate the users‟ point of view about the quality of transport, expressed through fifteen criteria, representative of the transport quality. The criteria were chosen according to the set proposed by Prioni and Hensher (2000), to the criteria included in the Transportation Research Board Handbook (1999) and to the European Standard EN13816. In particular, the chosen criteria are: Accessibility; Security; Cleanliness; Number of offered seats; Crowding; Frequency; Travel Time; Punctuality; Regularity of trips; Flexibility; Information; Single ticket(one ticket for all modes of transport, like a transport card); Intermodality; Pollution; Travel fares. In order to obtain more efficient results, we have divided these fifteen criteria into three macro categories. Each categories is composed of five criteria, and that are: Service Criteria, Time Criteria and External Criteria. Within the proposed survey, shared on the web, the users were asked to rank the chosen criteria. To investigate the transport company‟s point of view, we have extrapolated data, about costs and demand for transport, from financial statements. Among the transport companies that work into the metropolitan city of Bari, we have chosen the Ferrovie Appulo Lucane, which uses both Railway and Roadway transport. Starting from the data about costs and demand of transport, we have obtained the Average Cost curves for Railways and Road Transport. In this way, we have calculated the break-even point between the two curves. Due to the complexity of the transport problem, we have used the Analytical Hierarchy Process to decompose the problem in different levels. Because of the decomposition, we have obtained priority vectors, both for the pairwise comparison matrix of criteria and for the knowledge matrix, which we have taken as basic probability assignments (bpa) for application of the Dempster-Shafer Theory (DST). The DST is used to fuse different users‟ opinions, and to fuse users and company points of view, using the Dempster Rule of Combination. Moreover, the DST is used to take into account Uncertainty embedded in human judgment, thanks to the Belief and Plausibility measures, which are respectively the lower and upper bound of likelihood. Finally, in order to obtain the probability measures, we have used the Pigistic Trasnformation by Smets. The results show which alternatives users and transport company consider the best in relation to analyzed criteria
- …
