126,116 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Tallaba
No full textĠabra ta’ poeżiji u proża li tinkludi: Lill-Kittieba tal-“Malti” ta’ P. – Bejn Żewġt Iqlub ta’ A. C. – Lill-Qamar ta’ V. M. B. – It-Tallaba minn ta’ Matilde Serao ta’ Ġużè Micallef GoggiN/
Seismostratigraphic reconstruction of the Messinian palaeotopography across the Northern Sicily Continental Margin (NSCM) and an overlying Zanclean megaflood deposit
No full textDuring the Messinian salinity crisis (MSC) (from 5.97 to 5.33 Ma), the Mediterranean Sea became
disconnected from the world’s oceans and a fast and continuous evaporation resulted in its partial desiccation.
One of the theories for the end of the MSC postulates that a large volume of Atlantic waters entered the
Mediterranean Sea through the Gibraltar Strait and rapidly refilled the Mediterranean basin in an event welldocumented
known as the Zanclean Flood. The pathway of the Zanclean flood during its passage from the
western to the eastern Mediterranean Sea is unclear. The aim of this study is to understand the effects of
the Messinian palaeotopography of the southern Tyrrhenian Sea on the dynamics of the Zanclean flood. We
analysed a large number of multichannel seismic reflection profiles acquired in the Northern Sicily Continental
Margin (NSCM), calibrated with stratigraphic log from the Agip/ENI wells, and high-resolution multibeam
data showing the present-day morphology. A detailed seismostratigraphic and structural analysis of these data
allowed us to identify two different types of chaotic bodies in the Plio-Pleistocene sedimentary succession. The
first type consists of a very thick deposit characterised by chaotic to transparent seismic facies, deposited nonconformingly
above an older substrate with a very high-amplitude reflector along its top. This older substrate
correlates to the MES horizon (Lofi et al. 2011). The second type consists of thinner bodies having smaller
volumes and chaotic seismic facies interbedded with the well-stratified Pleistocene-Holocene deposits. We
interpret the Pleistocene-Holocene chaotic bodies as small-scale mass transport deposits (MTDs) that are mainly
located at the foot of steep escarpments and partly triggered by the compressional, extensional, and strike-slip
Plio-Pleistocene tectonics. We hypothesise that the larger chaotic body is a flood deposit, possibly emplaced
by a branch that separated from the main flow transferring water and sediment through the Sicily Channel
(Micallef et al., 2018). Based on the reconstructed Messinian palaeotopography of the southern Tyrrhenian
Sea, the Zanclean flood flowed from west to east across an elongated depression that is now bordered by the
“Elimi Chain” to the north and the Sicilian coastline to the south. The material transferred was finally deposited
at the toe of Scuso bank and Solunto high
On the use of a perforated plate for the calibration of a flow resistivity measurement apparatus
No full textA procedure was employed to calibrate a flow resistivity test set-up, using a rigid plate featuring cylindrical holes of a well-defined radius, as suggested in the ISO9053 standard. At low flow rates, the flow motion though such cylindrical holes could be described by a Poiseuille model as mentioned in the standard. However, end-effects should be taken into account, which are not mentioned in the standard. Formulas are given to account for these end-effects. Furthermore, at higher flow rates the Poiseuille model does not represent the physics of the problem any more due to jet-forming, requiring a numerical CFD model to describe the flow through the holes of the calibration plate. This work considers both models, comparing the numerical outcome with measurements carried out on the calibration plate, and gives design rules for the aforementioned calibration plate
Pragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
Dr. Edwin Wright Collection: Author Unknown
No full textNotes - The author relates several short stories about his neighbours including Alex McDonell, homesteading and life around Meanook and Athabasca (1 page
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Qajżu
No full textĠabra ta’ poeżiji u proża li tinkludi: San Ġużepp ta’ R. M. B. – It-Taqbida tal-Ħajja minn “Les Miserables” ta’ Victor Hugo u traduzzjoni ta’ Nikol Biancardi – Notturn ta’ Ġużè Ellul Mercer – Hekk kien miktub ta’ A. Cremona – Ix-Xita ta’ Eric Serracino Inglott – Tfajla Żeffiena ta’ Ġużi Micallef Grimaud – Il-Qajżu ta’ Karm. Fenech.N/
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
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