124,883 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
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
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
Resilience to large-scale disturbance in coral and fish assemblages on the Great Barrier Reef
No full textRecognition of the complex spatial and temporal variability of abundance and diversity found in many populations has led to a greater focus on the roles of heterogeneity, stochasticity, and disturbance in the structure and persistence of communities. This focus is directly relevant to coral reef communities that are characterized by very high species diversity in a spatially heterogeneous environment, display stochastic variability in community structure at small spatial and temporal scales, and are subject to major disturbances. We monitored coral and fish assemblages over 14 years on fixed sites spread over 80 km of the southern Great Barrier Reef (GBR), Australia, and found evidence of large-scale resilience and predictable recovery of these assemblages. Sometime between November 1987 and October 1989, live coral cover on the shallow northeast flanks of some reefs in the southern GBR decreased from >80% to <10%, probably as a result of storm damage. We compared the fish and benthic communities present in these areas prior to the disturbance (1983-1984) with those present in 1992 and the subsequent changes through to 1998. Hard coral cover increased slowly from 1992 to 1994, then accelerated to be indistinguishable from pre-impact levels by 1998. The response of the coral assemblages was largely due to the predominance of tabulate Acropora species and their characteristics of rapid growth and competitive dominance. Patterns of species richness of the fish families Acanthuridae, Chaetodontidae, Scaridae, and Pomacentridae mirrored that of hard coral, except the Pomacentridae had not recovered to pre-impact levels by 1998. Of the 26 fish species analyzed for changes in abundance, 88% decreased after the disturbance, then subsequently increased, with all but two recovering to pre-impact levels by 1998. Although processes such as settlement and immigration are ultimately responsible for replenishment of local populations, our data suggested that habitat plays a strong role in modifying fish assemblages. Thus, both coral and fish assemblages demonstrated resilience to large-scale natural disturbance and predictability in the structure of the assemblages, with most taxa approaching the asymptote of abundance and species richness that existed prior to the disturbance.PT: J; CR: ALLEN GR, 1998, GUIDE ANGELFISHES BU AULT TR, 1998, ECOL MONOGR, V68, P25 BAIRD AH, 2000, J EXP MAR BIOL ECOL, V251, P117 BELL JD, 1984, MAR ECOL-PROG SER, V15, P265 BOHNSACK JA, 1983, ENVIRON BIOL FISH, V9, P41 BORMANN FH, 1979, AM SCI, V67, P660 BROTHERS EB, 1983, MAR BIOL, V76, P319 BROWN BE, 1997, CORAL REEFS, V16, P129 BUDDEMEIER RW, 2002, CORAL REEFS, V21, P1 BYTHELL JC, 2000, MAR ECOL-PROG SER, V204, P93 CALEY MJ, 1996, J ANIM ECOL, V65, P414 CHABANET P, 1997, CORAL REEFS, V16, P93 CHEAL AJ, 2002, CORAL REEFS, V21, P131 CHESSON PL, 1986, COMMUNITY ECOLOGY, P229 CHOAT JH, 1996, MAR ECOL-PROG SER, V134, P15 CLEY MJ, 1997, P 8 INT COR REEF S, V1, P993 COLGAN MW, 1987, ECOLOGY, V68, P1592 CONNELL JH, 1978, SCIENCE, V199, P1302 CONNELL JH, 1983, AM NAT, V121, P789 CONNELL JH, 1997, CORAL REEFS S, V16, P101 CONNELL JH, 1997, ECOL MONOGR, V67, P461 CORNELL HV, 1996, J ANIM ECOL, V65, P233 DAVIES PJ, 1979, SEARCH, V10, P776 DAVIES PJ, 1980, NATURE, V287, P37 DOHERTY PJ, 1987, B MAR SCI, V41, P411 DOHERTY PJ, 1991, ECOLOGY FISHES CORAL, P261 DOHERTY PJ, 1997, P 8 INT COR REEF S P, V1, P1005 DONE TJ, 1992, CONT SHELF RES, V12, P859 FOWLER AJ, 1990, MAR ECOL-PROG SER, V64, P39 FOWLER AJ, 1992, MAR ECOL-PROG SER, V82, P131 FRIEDLANDER AM, 1998, J EXP MAR BIOL ECOL, V224, P1 GREEN AL, 1996, MAR ECOL-PROG SER, V133, P1 HANSKI I, 1998, NATURE, V396, P41 HART AM, 1996, MAR ECOL-PROG SER, V132, P11 HART AM, 1996, MAR ECOL-PROG SER, V132, P21 HEINSELMAN ML, 1981, P C FIR REG EC PROP, P7 HIXON MA, 1991, ECOLOGY FISHES CORAL, P475 HIXON MA, 1993, ECOL MONOGR, V63, P77 HOBBS RJ, 1994, PACIFIC CONSERVATION, V1, P170 HOLLING CS, 1973, ANNUAL REV ECOLOGY S, V4, P1 HUGHES TP, 1994, SCIENCE, V265, P1547 HUGHES TP, 1999, LIMNOL OCEANOGR 2, V44, P932 JONES GP, 1991, ECOLOGY FISHES CORAL, P294 JONES GP, 1998, AUST J ECOL, V23, P287 KARLSON RH, 1993, CORAL REEFS, V12, P117 LASSIG BR, 1983, ENVIRON BIOL FISH, V9, P55 LEWIS AR, 1997, MAR ECOL-PROG SER, V161, P37 LITTELL RC, 1996, SAS SYSTEM MIXED MOD LUCKHURST BE, 1978, MAR BIOL, V49, P317 MASSEL SR, 1993, CORAL REEFS, V12, P153 MCCULLAGH P, 1989, GENERALIZED LINEAR MEEKAN MG, 1999, B MAR SCI, V64, P383 NINIO R, 2000, MAR ECOL-PROG SER, V194, P65 NINIO R, 2002, CORAL REEFS, V21, P95 NOTT J, 2001, NATURE, V413, P508 ODUM EP, 1969, SCIENCE, V164, P262 OLIVER JK, 1995, LONG TERM MINITORING PAINE RT, 1981, ECOL MONOGR, V51, P145 PICKETT STA, 1986, ECOLOGY NATURAL DIST PIUMM SL, 1991, BALANCE NATURE ECOL RANDALL JE, 1990, FISHES GRET BARRIER ROBERTS CM, 1987, MAR ECOL-PROG SER, V41, P1 SALE PF, 1978, ENVIRON BIOL FISH, V3, P85 SALE PF, 1982, AM NAT, V120, P121 SANO M, 2000, MAR ECOL-PROG SER, V198, P121 STIMSON J, 1985, ECOLOGY, V66, P40 SWEATMAN H, 2000, 4 I MAR SCI SWEATMAN H, 2001, 5 AUSTR I MAR SCI SYMS C, 1998, J EXP MAR BIOL ECOL, V230, P151 SYMS C, 2000, ECOLOGY, V81, P2714 THOMPSON AA, 2002, MAR ECOL-PROG SER, V232, P247 VANWOESIK R, 1991, J COASTAL RES, V7, P551 WALSH WJ, 1983, CORAL REEFS, V2, P49 WELLINGTON GM, 1985, OECOLOGIA, V68, P15 WILKINSON CR, 1999, MAR FRESHWATER RES, V50, P867 WILLIAMS DM, 1982, CORAL REEFS, V1, P35 WILLIAMS DM, 1983, MAR ECOL-PROG SER, V10, P239 WILLIAMS DM, 1986, MAR ECOL-PROG SER, V28, P157 WILLIAMS DM, 1991, ECOLOGY FISHES CORAL, P437 WOODLEY JD, 1981, SCIENCE, V214, P749 WU JG, 1995, Q REV BIOL, V70, P439; NR: 81; TC: 9; J9: ECOLOGY; PG: 14; GA: 843VASource type: Electronic(1
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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