1,721,035 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
The development and use of strategic business performance improvement frameworks for rapid prototyping and tooling : executive summary
Get PDFIncreasing global competition within industry has forced businesses to respond by
reducing costs and product development lead times in order to survive. In the
automotive industry, these strategic responses include the specific exploitation of new
technologies and mergers with other companies to gain economies of scale.
BMW AG purchased Rover Group in 1994 but it wasn't until 1998 that competitive
pressure led to the completion of the merger through the creation of a single "Group
Function" structure within BMW Group. The BMW Board stated high-level
objectives for the process but provided no mechanism to convert them into reality.
Similarly, the BMW Group Board initiated a business process "Re-engineering"
programme in 1997/8 and stated cost, time and other objectives that would have to be
met. The technical and process changes that would help to achieve the business
improvements were being largely driven from the bottom of the organisation but
there were no frameworks available to guide strategic technology introduction.
The principal innovations generated during the course of this research are
frameworks for:
• Maximising the business benefits from the creation of 'Group Functions'
• Internal strategy creation for technology-based business sub-units
These two new frameworks have for the first time provided management and staff
with the means to develop meaningful strategies and operational action plans from
the corporate strategic objectives. The economic and business literature concentrates
mainly on whole business strategy and merger activity, neglecting the need for
guidance at the sub-corporate level. Although corporate strategy can provide the
overall direction of a company, it is the managers that have to drive strategic change
within the business.
The frameworks were developed by the author based on an in-depth review of the
literature and the specific context relating to Rapid Prototyping & Tooling (RP&T)
within BMW. The frameworks were validated within the business situation and
further enhanced where appropriate.
The Group Function framework fills the process gap between the high-level
objectives and the need for operational action plans. It provides a straightforward and
easy to communicate structure to the process of optimising duplicated business subunits.
Use of the framework led to the retention of both RP&T teams and the
initiation of beneficial synergistic activities. The framework should be applicable to
other similar groups in similar circumstances.
The author developed a new strategy creation framework that for the first time
combines a range of strategy development approaches from within the literature into
a practical framework for sub-corporate strategy development. The framework was
matched to the specific context of the RP&T case but could be used in other similar
circumstances. The framework was used to successfully develop a new strategy for
RP&T in BMW Group and includes new approaches developed by the author that
reduce the impact of environmental change and uncertainty. The framework has been
described in a stand alone form that can easily be more widely exploited
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Applications of a novel many-component Lattice Boltzmann simulation
No full textThere are many important systems which involve the flow of dense suspensions of
deformable particles; blood is an example. However, the modeling of such materials
represents a considerable challenge to established methods such as computational
fluid dynamics (CFD). In this PhD project, work has been undertaken to extend the
lattice Boltzmann method (LBM), and enable it to represent a large number of mutually
immiscible, deformable, droplets (separated by narrow interfaces). The new
method imposes a relatively small computational overhead and has been validated
against experimental observations. The work has also led to very promising developments
in the simulation of micro-fluidic systems, allowing much quicker simulations
than traditional CFD methods.
The principal target application of this project is the mesoscale modeling of blood
flow, where the typical length is about 10 red blood cells' diameters. We address
in here the identified gap in models capable of modeling efficiently, explicitly, many
deformable bodies within a surrounding incompressible fluid. We generalised, improved,
and extended an existing LBM model for binary fluids. Our N>>2 noncoalescing
fluids (droplets) are defined to represent the different deformable particles
of the suspension. Their interactions with the walls as well as their deform ability
are controlled by local fluid-wall wetting and fluid-fluid surface tensions methods,
which we have also been developed and validated.
All interfacial methods suffer from small but spurious flows that disturb the solution.
Our model is, unfortunately, no exception when used in a high surface tension and
low Reynold's number regime. We describe several steps taken to address this
problem which yield a significant reduction in these 'micro-currents' and important
improvements in stability and flow field noise reduction. This enabled our model to
access successfully the computationally non-trivial problems of binary fluid microfluidics.
Using our model, we also recover the expected behaviour of deformable and solid
particle suspensions with respect to experimental observations on flow of solid and
deformable spheres in pressure-driven straight pipe flow. In order to serve as calibration,
we measured the macroscopic effect of the droplets' effective deformability
against their microscopic properties (surface tension, internal viscosity).
This new model opens very promising and unique grounds of research, by the new
capability its offers.</p
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