1,721,072 research outputs found
Replication Data for: Spatial changes in gas transport and sediment stiffness influenced by regional stress: observations from piezometer data along Vestnesa Ridge, eastern Fram Strait
No full textThis database comprises piezometer pore-pressure and temperature data, analyses from Calypso sediment cores (grain sizes and logs) and results from geotechnical tests (index tests and oedometer tests), used for the study of seepage systems along the Vestnesa Ridge, in the eastern Fram Strait.
The data were collected over 2 research expeditions to the area. The reports for each of the expeditions can be accessed via Septentrio (https://septentrio.uit.no/index.php/cage):
- CAGE20-6 cruise report (https://doi.org/10.7557/cage.6918)
-CAGE19-3 cruise report (https://doi.org/10.7557/cage.6911)
In-situ pore fluid pressure (P) and temperature (T) were measured using the Ifremer piezometer which consists of a cable-deployed tool equipped with a sediment lance of 60 mm diameter carrying differential pore pressure (i.e., pore pressures in excess of hydrostatic pressures or excess pore pressure) and temperature sensors ( e.g., In situ equilibrium pore-water pressures derived from partial piezoprobe dissipation tests in marine sediments, Canadian Geotechnical Journal, 50(12), 1294-1305).
Calypso cores were taken for correlation with piezometer data using the Calypso Giant Piston Corer operated by the Norwegian Institute for Marine research and the University of Bergen.
Density, P-wave velocity and magnetic susceptibility (MS) logs on the unsplit sections were registered using the multi sensor core logger (MSCL) at UiT – The Arctic University of Norway in Tromsø. The upper 9 m of the calypso cores were subsampled in 1-cm thick slices at 10 cm intervals in cores C-4 and C-12. Core C-5 was subsampled every 20 cm, except between 4 to 5 m depth where the sampling was performed every 10 cm. The textural characteristics of the sediments were determined through wet sieving at 63 µm to separate the mud fraction (clay and silt) from the fractions coarser than 63 microns (sand, grains and pebbles).
Oedometer tests with constant rate of strain (CRS) were conducted at whole-around sub-samples from 2 depth intervals along each core at the labs by the Norwegian Geotechnical Institute (NGI). In addition, oedometer tests with incremental loading according to the ASTM D-2435 method were performed on 10 samples at Ifremer at approximately each 2-meter through the upper 9 m of core from sites 5 and 12
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
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
Submarine landslides in the Northern Tyrrhenian Sea and relationship with the turbiditic and contouritic deposits : morphology, stratigraphy, geotechnics and modelling
No full textLe Canal de Corse est un bassin confiné asymétrique localisé entre l’Île de Corse et l’Archipel de la Toscane, dont le flanc ouest est dominé par des processus turbiditiques et hémipélagiques et le flanc est par des mouvements en masse et des processus contouritiques. Le présent projet de doctorat a pour objectif de comprendre plus précisément les mécanismes contrôlant la formation des glissements sous-marins dans les contourites vaseuses (dépôts sédimentaires formés par les courants) pendant la période Plio-Quaternaire. Le vaste jeu de données disponible pour ce projet de doctorat inclut : la bathymétrie multifaisceaux, la sismique réflexion, les mesures géotechniques in situ, les mesures de vitesse de courant et les résultats d’un modèle hydrodynamique.Les contourites du Canal de Corse sont principalement composées de vase avec la présence de couches de sable formées par de forts courants de fond pendant les périodes de baisse du niveau marin. La croissance des dépôts contouritiques dépend de la disponibilité de sédiment fourni par le système turbiditique. Ainsi, cette croissance est lente pendant les périodes interglaciaires de haut niveau marin et rapide pendant les bas niveaux marins. Les courants contrôlent la morphologie du fond et génèrent les plastered drifts de forme convexe avec des pentes plus raides dans la partie avale, limités par une incision créée par les courants (moat). Le Pianosa Slump a été initié dans cette partie basse du plastered drift. Les moats pourraient être érodés préférentiellement pendant les périodes froides passées déclenchant ainsi certains glissements observés. Un autre facteur prédisposant l’instabilité de pente sur la Ride de Pianosa est la faiblesse d’une couche dont le comportement mécanique se caractérise par du radoucissement (perte de résistance avec le cisaillement). Cette propriété particulière est due à la présence de zéolites (produit de l’altération des roches volcaniques). Cette couche a formé la surface basale de rupture du Pianosa Slump. En conclusion, les deux principaux facteurs prédisposant la formation de glissements sous-marins sur la Ride de Pianosa sont : la morphologie du plastered drift avec une pente plus raide en aval et la couche faible composée de sédiment vaseux riche en zéolites. Le principal facteur déclenchant semble être l’érosion basale.The Corsica Trough is an asymmetric confined basin located between the Corsica Island and the Tuscan Ar-chipelago, with the western flank dominated by turbiditic and hemipelagic processes and the eastern flank by mass transport and contouritic processes. The present PhD project aims to develop our understanding of the mechanisms that control the formation of submarine landslides within muddy contourites (sediment deposits related to bottom currents) during the Plio-Quaternary. The broad data set available for this PhD project includes: multibeam bathymetry, seismic reflection data, sediment cores, in situ geotechnical measurements, current ADCP measurements and results of a hydrodynamic model.The contourites of the Corsica Trough are mainly composed of mud with sandy layers formed by enhanced bottom currents during periods of sea level fall. The contourite drifts grow slowly during sea level high-stands and rapidly during sea level low-stands due to the high sediment availability provided by an active turbidite sys¬tem. Bottom currents control the seafloor morphology and generate plastered drifts on the slope. This is a con¬vex-shaped contourite with steep slope gradients in the lower part limited by a moat (incision created by bottom currents). The Pianosa Slump was initiated in this lower part of the plastered drift. The occurrence of continuous erosive processes during cold periods could undercut the slope and trigger submarine landslides. Another predis¬posing factor for slope instability identified is the presence of a potential weak layer with a post-peak strain soften¬ing behaviour (strength loss with increasing strain). This particular property is caused by the presence of zeolites (product of the alteration of volcanic rocks). This layer originated the basal failure surface of the Pianosa Slump.In summary, the two main factors predispose the formation of submarine landslides in the Pianosa Ridge are: the morphology of the plastered drift with steep slopes in the lower part and a potential weak layer composed of zeolitic muddy sediment. The main triggering factor seems to be undercutting by bottom currents
Dilemmas of ambulance professionals in attending an emergency within eight minutes: the ethics of target setting
No full textThis book illustrates the application of ethical thinking to business, management and computing. The authors are not professional philosophers but lecturers, researchers and practitioners based at Liverpool Hope University (LHU) and other international institutes, who have a particular approach that will appeal to pedagogic and scholarly interests as well as to more general readers. Some of the authors are faculty colleagues at LHU, others are directly or indirectly connected with it through teaching and/or research cooperation. At LHU the ethical dimension runs through every aspect of its corporate life; it is embodied in its corporate mission statement that gives its teaching and research a special flavour, touching other people's lives and professional practice. This book brings together some significant areas of leading edge research and scholarship in the context of engagement with communities of practice, locally, regionally and professionally, with international students, police, teachers, housing managers, ambulance workers, etc. Most of the chapters are based on the practical experience of the contributors but written in an accessible way. There is a strong intercultural and transnational flavour in this book. It is explicitly cross-disciplinary, and will appeal to readers from areas like organization analysis, computer studies and information systems as well as philosophy and ethics
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