1,722,695 research outputs found
The Yi Peng 3 and Eagle S incidents - cutting cables in the Baltic Sea
No full textIn November 2024, the Chinese registered bulk carrier, the Yi Peng 3 was found to have been the only vessel in the area where cuts had been made in two telecommunication cables in the Baltic Sea, between Gotland and Estonia. With unexpected rapidity, the Yi Peng 3 was stopped by the Royal Danish Navy and, after delays by Chinese authorities, their offi cials arrived for a cursory examination, then the ship was released. The two cables had already been repaired and evidence collected about the damage, together with evidence of previous attempts by the same vessel to cut electricity and telecommunication cables. Then in December 2024, a vessel belonging to the 'shadow fl eet' used by Russia to breach oil sanctions cut an electricity interconnector and four telecommunications cables in the Gulf of Finland. The Eagle S, registered in the Cook Islands, was ordered into Finnish territorial waters, where it was boarded by special forces and taken to a port. These incidents highlighted the challenges of responding to attacks on undersea cables conducted by Russia as part of its undeclared war against NATO. It requires rapid notifi cation of breaks to the national authorities (e.g., CERT), passed immediately to coast guard and navy, and consultation with prosecutors, before making immediate interventions to seize the vessels concerned and gather evidence, followed by quick repairs to the broken cables. This is possible only with careful administrative, judicial and political coordination in a complex system of polycentric governance. The international conventions, especially in the Danish Straits, make it diffi cult for coastal states to arrest vessels and to protect cables, especially beyond territorial waters. Nonetheless, the Eagle S incident demonstrated that a rapid response can be eff ective. In the longer term such threats require improvements to network resilience and better coordination amongst operators, government agencies and countries, given the diffi culties in changing international conventions. One crucial change could be the inclusion of cable cutting in the defi nition of piracy
Correction: Hydrogen evolution reaction catalyzed by ruthenium ion-complexed graphitic carbon nitride nanosheets
No full textCorrection for ‘Hydrogen evolution reaction catalyzed by ruthenium ion-complexed graphitic carbon nitride nanosheets’ by Yi Peng et al., J. Mater. Chem. A, 2017, DOI: 10.1039/c7ta03826g.</p
sj-pdf-1-jig-10.1177_1069031X211036688 - Supplemental material for Trust Propensity Across Cultures: The Role of Collectivism
No full textSupplemental material, sj-pdf-1-jig-10.1177_1069031X211036688 for Trust Propensity Across Cultures: The Role of Collectivism by Stanford A. Westjohn, Peter Magnusson, George R. Franke and Yi Peng in Journal of International Marketing</p
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
Sensitivity-based model updating of steel frames with BRBs in OpenSees
No full textResponse sensitivities for an elastoplastic model specifically developed for buckling-restrained braces (BRBs) and recently implemented in OpenSees, are used as a tool for model updating of steel frames with BRBs. The response and response sensitivities were derived and validated in an earlier study and used to investigate the influence of the BRB constitutive parameters on the structural response under seismic excitations. The inverse problem, i.e. identification of the BRB constitutive parameters from the global structural dynamic response, here illustrated is solved using a sequential quadratic programming algorithm for large-scale constrained optimization. Convergence rates and differences between target and identified values are discussed for a steel frame where BRBs are the only seismic-resistant components. The discussion includes a comparisons between consistent sensitivities obtained through the direct differentiation method as implemented in OpenSees and their approximated values as obtained from the finite difference method
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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