1,721,085 research outputs found
Replication codes for: "Epidemiology models explain rumour spreading during France’s Great Fear of 1789" by S. Zapperi et al.
No full textCodes to reproduce the analysis and the figures for the paper "Epidemiology models explain rumour spreading during France’s Great Fear of 1789" by S. Zapperi et al.
Intstructions: The codes are included in three jupyther notebooks running python3.9. Dowload the code and load it within jupyter together with the data
Replication Data for: "Epidemiology models explain rumour spreading during France’s Great Fear of 1789" by S. Zapperi et al.,
No full textThe following datasets are included:
G_tot.p: networkx.DiGraph reporting the transmission network of the Great Fear reconstructed from Lefebvre, G.: La Grande Peur de 1789: Suivi de Les Foules Révolutionnaires. Armand Colin, Paris (2021). Stored in a pickle file
G_nodes.csv: nodes of the G_tot network in csv format, with attributes.
G_edges.csv: edges of the G_tot network in csv format, with attributes.
Rumor_Transmission_Soissonnais.csv: csv file containing the trasmission events in the Soissonnais region reconstructed from Ramsay, C.: The Ideology of the Great Fear: the Soissonnais In 1789. The Johns Hopkins University Press, Baltimore and London (1989) .
france_outline.geojson: outline of map of France in 1790. Obtained from the map of departments published at https://doi.org/doi:10.7910/DVN/HJISNR , taking the union of the polygons.
Allodiality_data.geojson: a georeferenced dataset based on a map of France in 1789 subdivided by provinces, with associated information about Alloidiality. Data are compiled from: Hesse, P.-J.: Geographie coutumi`ere et revoltes paysannes en 1789: Una hypothese de travail. In: Annales Historiques de la Revolution Française, pp. 280–306 (1979), using the maps of departments published at https://doi.org/doi:10.7910/DVN/HJISNR
Price_data.geojson: a georeferenced dataset based on a map of France in 1789 subdivided by generalitées and with associated information about the price of wheat in 1787, 1788 and 1789. The difference between the price in 1789 and 1787 is also reported. Data are compiled from: Labrousse, C.-E.: Esquisse du Mouvement des Prix et des Revenus en France Au 18e Siecle. Dalloz, Paris (1933), using the maps of generalités published at https://doi.org/10.7910/DVN/T8UXHK
Socio_economic_data.geojson: a georeferenced dataset including all the muncipalities of France with associated information about socioeconmic and demographic variables corresponding to the year 1789. Data include price and allodiality data (see above) as well as other variables obtained from: Cagé, J., Piketty, T.: Une Histoire du Conflit Politique: Elections et Inégalités Sociales en France, 1789-2022. Seuil, Paris (2023
Replication Data for: Soil Health and Microbial Diversity Across Land-Use Types: Evidence for Agroecological Management in Peri-Urban Areas
No full textResults of metagenomic analysis (ITS for fungi and 16s for bacteria) of soil microbiome.
16s_Genus_Level_Aggregate_Counts 2.csv: ITS OTU table at genus level
ITS_Species_Level_Aggregate_Counts.csv: ITS OTU table at species level
16s_Species_Level_Aggregate_Counts.csv: 16s OTU table at species level
ITS_Genus_Level_Aggregate_Counts.csv: 16s OTU table at genus level
Samples.xlsx: metadata specifying the type of soil for each sampl
Renormalization approach to the self-organized critical behavior of sandpile models
Full text linkWe introduce a renormalization scheme of a type that is able to describe the self-organized critical state (SOC) of sandpile models. We have defined a characterization of the phase space that allows us to study the evolution of the dynamics under change of scale. In addition, a stationarity condition provides a feedback mechanism that drives the system to its critical state. We obtain an attractive fixed point in the phase space of the parameters that clarifies the self-organized critical nature of these systems. The universality class of several models is identified by studying the properties of the basin of attraction of this fixed point. We compute analytically the avalanche exponent τ and the dynamical exponent z for sandpile models in d=2. The values obtained are in very good agreement with computer simulations. The renormalization scheme can also be applied to study nonconservative sandpile models. The result is that the introduction of a dissipation parameter destroys the critical properties as suggested from simulations. The present theoretical framework seems particularly suitable for all SOC problems and can be naturally extended to other systems showing a critical nonequilibrium stationary state
Colloquium: Modeling friction: From nanoscale to mesoscale
Full text linkThe physics of sliding friction is gaining impulse from nanoscale and mesoscale experiments, simulations, and theoretical modeling. This Colloquium reviews some recent developments in modeling and in atomistic simulation of friction, covering open-ended directions, unconventional nanofrictional systems, and unsolved problems
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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