124,580 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
Amphilius lujani Thomson & Page, new species
No full textAmphilius lujani Thomson & Page, new species (Fig. 9, Tables 7) Amphilius jacksonii.— Seegers et al., 2003: 37, Lake Victoria drainage (affluent rivers) [Nile basin] Holotype. UF 184238, ex. UF 169233, Uganda, Manafwa River at Bumwangu, Lake Kyogo drainage, Nile basin, 00° 56 ' 26.2 ”N, 34 ° 16 ' 49.2 "E (104.1 mm SL). Paratypes. Lake Kyogo drainage: AUM 47147, same data as holotype (16: 37.7–112.3); AUM 47149, Uganda, Malaba River at Lwakhakha, border between Uganda and Kenya, 00° 47 '04”N, 34 ° 22 ' 44 "E (7: 46.3–98.1); BMNH 1961.6. 13.19, Uganda, Malawa [=Malaba] River, ca. 00° 35 'N, 34 °03'E (1: 99.4); BMNH 1962.2.6.62– 63, Uganda, Malawa [=Malaba] River, ca. 00° 35 'N, 34 °03'E (2: 80.0– 107.9); BMNH 1965.10.15.18– 21, Kenya, Malikisi River, ca. 01° 37 'N, 34 ° 13 'E (4: 35.7 –48.0); CU 97333, same data as holotype, ex. AUM 47147 (3: 50.3– 90.5); MRAC B 3 –06–P– 17–19, same data as holotype, ex. UF 169233 (3: 56.0– 88.1); SAIAB 187280, same data as holotype, ex. UF 169233 (3: 47.9 –98.0); UF 169233, same data as holotype (15: 43.0– 107.6); UF 169235, same data as AUM 47149 (7: 45.4–90.1). Non-types. Lake Kyogo drainage: BMNH 1965.10.15.11– 13, Uganda, Sironko River, ca. 01° 29 'N, 34 ° 14 'E (2: 103.7–119.5); BMNH 1965.10.15.14– 15, Uganda, Sironko River, ca. 01° 29 'N, 34 ° 14 'E (1: 101.1); BMNH 1965.10.15.16– 17, Uganda, Zuzu River, tributary of the Manafwa River, ca. 01° 13 'N, 34 ° 21 'E (2: 40.9–42.1). Lake Manyara basin: BMNH 1969.2. 20.1, Tanzania, Stream entering Lake Manyara, ca. 03° 38 'S, 35 ° 41 'E (1: 45.0). Nzoia River system (NE Lake Victoria tributary): SAIAB 65048, Kenya, Moi Brgidge, Little Nzoia River, ca. 00° 55 'N, 35 °07'E (1: 74.5). Diagnosis. Diagnostic characters are summarized in Table 2. Amphilius lujani is diagnosed from A. pedunculus, A. frieli, and A. crassus by having a more slender caudal peduncle (depth 8.1–9.5 % SL vs. 9.9–12.3 % SL). It is diagnosed from A. jacksonii by having a deeper caudal peduncle (depth 8.1–9.5 % SL vs. 4.8–7.9 % SL) and a deeper body (body depth at anus 13.5–15.8 % SL vs. 9.6–13.2 % SL). Amphilius lujani is diagnosed from A. ruziziensis by having a wider interorbital width (28.3–31.7 % HL vs. 23.4–25.1 % HL) and a deeper body (body depth at anus 13.5–15.8 % SL vs. 11.1–12.9 % SL). It is further diagnosed from A. frieli by having fewer gill rakers on the first gill arch (6–8, rarely 5 or 9 vs. 10–11, rarely 9 or 12) and a longer caudal peduncle (length 16.8–20.9 % SL vs. 14.4–16.4 % SL). Amphilius lujani is further diagnosed from A. crassus by having more branched pectoralfin rays (9 vs. 7–8, rarely 9) and a longer caudal peduncle (length 16.8–20.9 % SL vs. 13.3–15.5 % SL). Description. Morphometric data are in Table 7. Body elongate, ventral profile flattened ventrally to anal-fin base, then tapered dorsally to end of caudal peduncle. Dorsal profile rising gently from tip of snout to dorsal-fin origin, then nearly horizontal to end of caudal peduncle. Greatest body depth at dorsal-fin origin. Caudal peduncle laterally compressed, with crenellated epidermal fold. Anus and urogenital openings located at midpoint of adpressed pelvic fin, closer to pelvic-fin insertionthan to origin of anal fin. Skin smooth. Lateral line complete, extending from dorsal edge of opercular cavity to caudal-fin base. Head and anterior part of body depressed and broad. Head wedge-shaped in lateral view. Snout broad, blunt when viewed from above. Head becoming wider from tip of snout to pectoral-fin base. Branchiostegal membranes moderately joined at isthmus forming a V -shaped connection. Mouth broad, gently curved, subterminal. Lips moderately fleshy, strongly papillate. Rictal lobe large and papillate. Anterior portion of premaxillary tooth band exposed with mouth closed. Premaxillary tooth patches joined, forming crescent shaped band. Premaxillary and dentary teeth short, conical. Dentary tooth patches forming U -shaped band, separated medially. Three pairs of simple, tapered circumoral barbels. Maxillary barbel large, fleshy and flattened with pointed tip; barbel extending posterolaterally from corner of mouth, to pectoral-fin base. Outer mandibular barbel thin with pointed tip, origin at posterior corner of lower jaw, extending to origin of pectoral-fin. Inner mandibular barbel originates anterolaterally of inner mandibular barbel, extending to edge of branchiostegal membrane. Branchiostegal membrane with 7 (21), or 8 (25) rays. Gill rakers on first epibranchial 2 (36) or 3 (10); rakers on first ceratobranchial 4 (2), 5 (22), 6 (1), or 7 (1); total gill rakers on first arch 6 (2), 7 (16) 8 (23) or 9 (5). Eye small, positioned dorsolaterally approximately midway between tip of snout and posterior margin of operculum. Horizontal diameter of eye slightly wider than vertical diameter. Eye without free orbit; covered with skin confluent with dorsal surface of head. Anterior and posterior nares with prominent tubular rims; nares separate but relatively close to each other. Posterior nare located about midway between eye and tip of snout. Dorsal-fin origin at point over tip of pectoral fin. Dorsal fin with i, 6 (45) or i, 7 (1) rays, and fin margin straight. Pectoral fin with i, 9 (46) rays; unbranched ray greatly thickened. Pectoral fin with four or five innermost rays progressively shorter making posterior fin margin rounded. Origin of pelvic fin posterior of dorsal-fin insertion. Pelvic fin with i, 5 (46) rays with first ray unbranched and greatly thickened. Pelvic fin with straight posterior margin. Adipose-fin base longer than anal-fin base, origin anterior to origin of anal-fin base, fin extending past anal-fin insertion. Margin strongly convex with sharply rounded edge, deeply incised posteriorly. Caudal fin deeply forked with tips of lobes rounded; fin with i,5,6,i (46) principal rays. Anal fin with short base, origin posterior to origin of adipose-fin base, with ii, 6 (10), ii, 7 (12), iii, 6 (19), or iii, 7 (6) rays. Anal-fin margin almost straight. Coloration. Body variably mottled with dark saddles. First saddle posterior of head, second saddle at dorsal fin, third saddle between dorsal and adipose fins, fourth saddle under anterior part of adipose fin, and fifth saddle on caudal peduncle. All saddles connected laterally by broad stripe. Venter light brown with fourth and fifth saddles meeting those of opposite side. Dorsal, and anal fins light brown with faint medial bands. Adipose fin dark brown to black, with posterior distal edge cream-colored. Pectoral and pelvic fins positioned horizontally with upper surfaces cream-colored with darkened fin base and faint medial bands. Lower surfaces light yellow. Caudal fin cream-colored with dark markings on upper and lower lobes. Caudal coloration asymmetrical, with lower lobe almost completely dark (except for small cream-colored mark at base of caudal and cream-colored tip). Upper lobe with less dark pigment, with dark blotch covering dorsal edge, but caudal base with large cream-colored patch and tip cream-colored. Distribution. Lake Kyogo drainage, western Uganda; Nzoia River, a northeastern tributary of Lake Victoria, and Lake Manyara basin, Tanzania (Fig. 6). Etymology. Named for Nathan K. Lujan who collected the holotype and most paratypes of this species, and who has made excellent contributions to our knowledge of freshwater fishes.Published as part of Thomson, Alfred W., Page, Lawrence M. & Hilber, Samantha A., 2015, Revision of the Amphilius jacksonii complex (Siluriformes: Amphiliidae), with the descriptions of five new species, pp. 61-87 in Zootaxa 3986 (1) on pages 81-84, DOI: 10.11646/zootaxa.3986.1.3, http://zenodo.org/record/28909
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
Study of the decay mechanism for B+ -> p(p)over-barK(+) and B+ -> p(p)over-bar pi(+)
No full textWe study the characteristics of the low mass p (p) over bar enhancements near threshold in the three-body decays B+ -> p (p) over barK(+) and B+ -> p (p) over bar pi(+). We observe that the proton polar angle distributions in the p (p) over bar helicity frame in the two decays have the opposite polarity, and measure the forward-backward asymmetries as a function of the p mass for the p (p) over barK(+) mode. We also search for the intermediate two-body decays, B+ -> (p) over bar Delta(++) and B+ -> p (Delta) over bar (0), and set upper limits on their branching fractions. These results are obtained from a 414 fb(-1) data sample that contains 449 x 10(6) B (B) over bar events collected near the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. (c) 2007 Elsevier B.V. All rights reserved.IPE
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