1,720,957 research outputs found
Three of North America's geoheritage sites and the lost 1863 exploration of Giovanni Capellini
No full textGeoparks and the valorization of sites with a strong geoheritage component is a new frontier fos sustainable tourism. A UNESCO special recognition was established in 2015, and much work has been undertaken in establishing sites in Europe and Asia, yet only five localities have been recognized iby UNESCO in North America. This paper discusses three sites relevant to geoheritage - Pulpit Rock in Massachusetts, Montmorency Falls in Quebec and Niagara Falls in New York and Ontario - which were visited in 1863 by the newly appointed professo of geology at Bologna University, Giovanni Capellini. During his four-month journeu across northeastern North America, he made sketches, took notes and collected more than 2000 specimens that together provide a depth of perspective on the importance of the geoheritage of the sites he visited. We chose these sites, among the many visited by Capellini, because Niagara Falls is now seeking UNESCO recognition, ant the othe two, though no longer fully accessible, remain important tourist sites and areas of geological interest
The largest thalattosuchian (Crocodylomorpha) supports teleosaurid survival across the Jurassic-Cretaceous boundary
Full text linkA new teleosaurid from the Lower Cretaceous of Tataouine (Tunisia), Machimosaurus rex sp. nov.,
definitively falsifies that these crocodylomorphs faced extinction at the end of the Jurassic. Phylogenetic
analysis supports its placement closer to M. hugii and M. mosae than M. buffetauti. With the skull length
up to 160 cm and an estimated body length of 10 m, M. rex results the largest known thalattosuchian, and
the largest known crocodylomorph at its time. This giant thallatosuchian probably was an ambush
predator in the lagoonal environments that characterized the Tethyan margin of Africa during the earliest
Cretaceous. Whether the Jurassic-Cretaceous mass extinction was real or artefact is debated. The discovery
of M. rex supports that the end-Jurassic crisis affected primarily Laurasian biota and its purported
magnitude is most likely biased by the incomplete Gondwanan fossil record. The faunal turnovers during
the J-K transition are likely interpreted as local extinction events, triggered by regional ecological factors,
and survival of widely-distributed and eurytypic forms by means of habitat tracking
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
Are you ready? Why is it important to plan for cultural heritage
Full text linkThis article explores how the application of Disaster Risk Management Cycle for Cultural Heritage (DRMC for CH) in the prevention and planning phases is crucial to the protection of cultural heritage. Several successful case studies demonstrate how preventive strategies and structured management approaches can effectively safeguard cultural assets from wars and earthquakes. The evidence confirms that, even in challenging contexts, strategic planning can significantly reduce risks and ensure the preservation of works of art and historic buildings. Proactive planning and preparation in peacetime are fundamental to responding effectively to emergencies and protecting the cultural identity of communities and global heritage. Cultural heritage, which includes monuments, historic buildings, artworks, and intangible traditions, represents the foundation of our identity and collective memory. Each element of this heritage is the result of centuries of history, culture, and innovation, shaping not only a nation's cultural landscape but also the shared history of humanity. The loss of cultural heritage is not just a material setback but an irreparable loss for humankind. Therefore, its protection is a responsibility that transcends national boundaries and is essential for preserving our collective identity. In recent decades, the importance of developing and implementing effective policies to protect cultural heritage from natural disasters and conflicts has been increasingly recognised by the scientific and cultural community worldwide. International documents such as the Hague Convention for the Protection of Cultural Heritage in the Event of Armed Conflict (1954) and the UNESCO Convention for the Protection of World Cultural and Natural Heritage have strengthened the concept of global heritage protection, highlighting the need to develop prevention plans and timely responses. Additionally, initiatives such as UNESCO’s Action Plan for Disaster Risk Management of Cultural Heritage, which draws on global experience and best practices, have encouraged the international community to work together in a more coordinated manner. Recent documents such as the ‘Principles of Cultural Heritage Resilience’ and the guidelines provided by the World Heritage Convention are essential for understanding the importance of planning and early intervention in the protection of cultural heritage. International cooperation, combined with the application of innovative risk management techniques, has played a pivotal role in enhancing disaster preparedness and ensuring that cultural heritage is neither destroyed nor irreversibly damaged
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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