125,041 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
Domain-domain interactions in high mobility group 1 protein (HMG1)
No full textThe high mobility group protein HMG1 is a conserved chromosomal protein with two homologous DNA-binding domains, A and B, and an acidic carboxy-terminal tail, C. The structure of isolated domains A and B has been previously determined by NMR, but the interactions of the different domains within the complete protein were unknown. By means of differential scanning calorimetry and circular dichroism we have investigated the thermal stability of HMG1, of the truncated protein A-B (HMG1 without the acidic tail C) and of the isolated domains A and B. In 3 mM sodium acetate buffer, pH 5, the thermal melting of domains A and B are identical (transition temperature t(m) = 43 degrees C and 41 degrees C, denaturation enthalpies Delta H = 46 kcal.mol(-1)). The thermal melting of protein A-B presents two nearly identical transitions (t(m) = 40 degrees C and 41 degrees C, Delta H = 44 kcal mol(-1) and 46 kcal.mol(-1), respectively). We conclude that the two domains A and B within protein A-B behave as independent domains. The thermal melting of HMG1 is biphasic. The two transitions have a different value of t(m) (38 degrees C and 55 degrees C) and corresponding values of Delta H around 40 kcal.mol(-1). We conclude that within HMG1, the acidic tail C is interacting with one of the two domains A and B, however, the two domains A and B do not interact with each other. At 37 degrees C, one of the two domains A and B, within HMG1, is partly unfolded, whereas the other which interacts with the acidic tail C, is fully native. The interaction free energy of the acidic tail C is estimated to be in the range of 2.5 kcal.mol(-1) based on simulations of the thermograms of HMG1 as a function of the interaction free energy
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
Supplemental Material for Ramstein and Casler, 2019
No full textFile_S1.csv: Population information
File in .csv format
consisting of information about population assignment and geographical origin
of genotypes
Genotype: population
(in BP) or accesion (in AP) + genotype ID within population/accession: maternal
parent of half-sib families in BP (e.g. ‘Liberty-C2_31804’ refers to genotype
31804 in population Liberty-C2), individual plant in AP (e.g., ‘Dacotah_03’
refers to genotype 03 in accession Dacotah)
Latitude: coordinate
of geographical origin in °N
Longitude: coordinate
of geographical origin in °W
Population: WS4U-C2,
Liberty-C2, U4X-N, U8X-W, U8X-E, U8X-S, L4X-NE or L4X-S
File_S2.csv: Raw phenotypic data
File in .csv format consisting
of trait measurements at plants
Panel: BP (WS4U-C2, Liberty-C2) or AP (U4X-N, U8X-W, U8X-E, U8X-S,
L4X-NE, L4X-S)
Location: WI (for BP) or NY
(for AP)
Year: 2012 to 2014 (for BP),
2009 to 2011 (for AP)
Rep: replicate
Set: set, for AP only (for
which individuals are arranged in a sets-in-reps design)
Genotype: Population (in BP)
or accesion (in AP) + genotype ID within population/accession: maternal parent
of half-sib families in BP, individual plant in AP
PH: plant height,
measured in centimeters as the height from the ground to the top of the tallest
tiller
HD: heading date,
measured in growing degrees days as the cumulated sum of daily average
temperatures (in degrees Celsius; °C) above 10 °C, from January 1st
to the day of heading, defined as the emergence of at least half of the
panicles from the boot; daily average temperatures were estimated by the
average of the minimum and maximum daily temperatures
St: standability,
measured on a 0-10 scale to describe plants’ stature and stiffness, with 0
qualifying plants that are prostrate and 10 qualifying upright and rigid plants
File_S3.csv: Genotype means
File in .csv format
consisting of genotype means for maternal parents in BP and individuals
in AP. In BP, genotype means are the intercept +
two times adjusted half-sib families means. In AP, genotype means are the
intercept + adjusted genotype means. Models used to estimate adjusted half-sib
families means in BP were fitted in WS4U-C2 and Liberty-C2 separately. Models
used to estimate adjusted genotype means in AP were fitted on all AP
individuals.
Genotype: population
(in BP) or accesion (in AP) + genotype ID within population/accession: maternal
parent of half-sib families in BP, individual plant in AP
PH: plant height,
measured in centimeters as the height from the ground to the top of the tallest
tiller
HD: heading date,
measured in growing degrees days as the cumulated sum of daily average
temperatures (in degrees Celsius; °C) above 10 °C, from January 1st
to the day of heading, defined as the emergence of at least half of the
panicles from the boot; daily average temperatures were estimated by the
average of the minimum and maximum daily temperatures
St: standability,
measured on a 0-10 scale to describe plants’ stature and stiffness, with 0
qualifying plants that are prostrate and 10 qualifying upright and rigid plants
Marker_data.rds: Genotype calls
File in .rds format, readable
from the readRDS function in R, containing expected allelic dosages (expected
number of alternate alleles, as per posterior probabilities from genotype
calling) at selected markers for each genotype. Rows correspond to the n = 760 genotypes (maternal parent in
BP, individual in AP). Columns correspond to the m = 717,814 marker loci selected across individuals.
Row names: Population (in BP)
or accesion (in AP) + genotype ID within population/accession: maternal parent
of half-sib families in BP, individual plant in AP
Column name: Chromosome index
+ SNP position as per v1.1 of the reference genome (e.g. ‘Chr05b_1187770’
refers to the SNP at position 1187770 in chromosome 5, subgenome B)</p
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
The construction of Karen Karnak: The multi-author-function
No full textThis thesis is situated within the comparatively recent developments of Web 2.0 and the emergence of interactive WikiMedia, and explores the mode of authorship within a Read/Write culture compared to that of a Read/Only tradition. The hypothesis of this study is that the role of the audience has become merged with the author, and as such, represents new functions and attributes, distinct from a more conventional concept of authorship, in which the roles of audience and author are more separate. Read/Write and participatory culture, as defined by this study, is focused on collaboration, and includes the influences of D.I.Y. culture, Open-Source practices and the production of text by multiple authors. Multi-authorship presents a re-thinking of several concepts which support the notion of the individual author, since the focus of multi-authorship is not on attribution and ownership of a finished text, but on the continued malleability of a text. Modes of multi-authorship, demonstrated in the use of the pseudonyms Alan Smithee and Karen Eliot, represent declarative authors whose names signify multiple origins, whilst concurrently indicating a distinct body of work. The function of these names form an important context to this study, since primary research involves the construction of an experimental mode of multi-authorship utilising WikiMedia technology and the interaction of thirty nine participants, who are invited to create a body of work under the collective pseudonym Karen Karnak. The data generated by this experiment is analysed using aspects of Michel Foucault's author-function to identify and determine power structures inherent in the WikiMedia context. The interplay of power structures, including concepts such as identity, ownership and the body of work, affect the resulting mode of authorship and contribute to the construction of Karen Karnak, suggesting further areas of research into the emerging multi-author
Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
No full textAn analysis of B+ → K0
Sπ+ and B+ → K0
S K+ decays is performed with the LHCb experiment. The pp
collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass
energies of
√
s = 7 TeV and
√
s = 8 TeV, respectively. The ratio of branching fractions and the
direct CP asymmetries are measured to be B(B+ → K0
S K+
)/B(B+ → K0
Sπ+
) = 0.064 ± 0.009 (stat.) ±
0.004 (syst.), ACP(B+ → K0
Sπ+
) = −0.022 ± 0.025 (stat.) ± 0.010 (syst.) and ACP(B+ → K0
S K+
) =
−0.21 ± 0.14 (stat.) ± 0.01 (syst.). The data sample taken at
√
s = 7 TeV is used to search for
B+
c
→ K0
S K+ decays and results in the upper limit ( fc · B(B+
c
→ K0
S K+
))/( fu · B(B+ → K0
Sπ+
)) <
5.8 × 10−2 at 90% confidence level, where fc and fu denote the hadronisation fractions of a ¯b
quark
into a B+
c or a B+ meson, respectively
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