1,721,206 research outputs found
Approaches of data analysis from multi‐parametric monitoring systems for landslide risk management
Full text linkIn the last decades, several approaches were proposed accounting for early warning
systems to manage in real time the risks due to fast slope failures where important
elements, such as structures, infrastructures and cultural heritage are exposed. The
challenge of these approaches is to forecast the slope evolution, thus providing alert
levels suitable for managing infrastructures in order to mitigate the landslide risk and
reduce the “response” time for interventions.
Three different strategies can be defined in this regard: an Observation‐Based
Approach (OBA), a Statistic‐Based Approach (SBA) and a Semi‐Empirical Approach
(SEA). These approaches are focused on searching relations among destabilizing
factors and induced strain effects on rock mass.
At this aim, some experiments are being performed at different scales in the
framework of consulting activities and research projects managed by the Research
Centre for the Geological Risk (CERI) of the University of Rome “Sapienza”. These
experiments are testing different kind of sensors including extensometers, strain
gauges, rock‐thermometers, interferometers, optical cams connected to Artificial
Intelligence (AI) systems, for detecting changes in rock properties and detecting stressstrain
changes, as well as pluviometers, anemometers, hygrometers, air‐thermometers,
micro‐ or nano‐ accelerometers and piezometers for detecting possible trigger of
deformational events.
The results of this Ph.D. thesis demonstrate that the data analysis methods allowed
the identification of destabilizing actions responsible for strain effects on rock mass at
different dimensional scale and over several time‐window, from short‐ to long‐ period
time scale. Furthermore, the three approaches were to be suitable to recognize
precursor signals of rock mass deformation and demonstrated the possibility to
provide an early warning
Change Pain: changing the approach to chronic pain.
No full textIn Italy, chronic pain has a prevalence of about 26%, a rate that warrants efforts by specialists and primary care physicians to improve its treatment. From a study of various treatment systems, it is clear that a radical change in the approach to pain pathology is needed. To this end, the Change Pain International Advisory Board*, an international panel of experts, highlighted the limits to current treatment schemes and proposed new strategies. Among the criticalities are poor or inadequate communication between physician and patient, difficulty in qualitative and quantitative measurement of pain, management of adverse effects, and the "vicious circle" generated by current therapies, often the cause of poor compliance with pain treatment or discontinuation of analgesic therapy. A further limitation to current therapeutic practice is to consider pain intensity as the sole reference parameter in its treatment. In light of these considerations, the Advisory Board has drawn up a strategy to improve outcomes of pain therapy: 1) a shared therapeutic pact between physician and patient based on efficacious communication rather than on information alone; 2) identification of defined therapeutic objectives that allow for reaching a balance between reduction of pain and occurrence of adverse effects; 3) adoption of drug therapies that respond at least in part to an approach based on the pathogenic mechanism of pain rather than on pain intensity alone
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
Periodic orbits close to elliptic tori and applications to the three-body problem
Full text linkWe
prove, under suitable non-resonance and non-degeneracy “twist”
conditions, a Birkhoff-Lewis type result showing the existence of infinitely many
periodic solutions, with larger and larger minimal period, accumulating onto ellip-
tic invariant tori (of Hamiltonian systems). We prove the applicability of this result
to the spatial planetary three-body problem in the small eccentricity-inclination
regime. Furthermore, we find other periodic orbits under some restrictions on the
period and the masses of the “planets”. The proofs are based on averaging theory,
KAM theory and variational method
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