126,096 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
Dimidiogalumna Engelbrecht 1972
No full textGenus <i>Dimidiogalumna</i> Engelbrecht, 1972 (<i>b</i>) <p> Type species: <i>Dimidiogalumna villiersensis</i> Engelbrecht, 1972 (<i>b</i>), p. 141</p> <p> Without sexual dimorphism in prodorsum and notogaster, notogaster rounded posteriorly in both genders. Body surface without strongly developed sculpture or ornamentation, or pteromorphs striate. Rostrum rounded. Lamellar lines present, long, thin, curving backwards at ventral end, sublamellar lines absent. Rostral setae medial to lamellar lines and distanced from them. Lamellar setae lateral to lamellar lines. Bothridial setae clavate, fusiform, lanceolate. Dorsosejugal suture absent or present, postanal porose area present. Notogastral setae represented by 10 pairs of alveoli, one pair on pteromorphs. Octotaxic system represented by porose areas, saccules absent, one pair of <i>Aa</i>. Median pore present in females and males, undivided. Pteromorphs clearly bilobed. Without thorn-like structures behind pteromorphs, dark band anterior to genital aperture and anal and adanal neotrichy. Adanal lyrifissures located close and lateral to anal aperture. Leg tarsi with three claws. Leg setae not modified.</p> <p> Statement of monophyly: Non-monophyletic—see Note 4.3 in <i>Taxonomic notes</i> section</p> <p>Distribution: Ethiopian, Oriental and southern Palaearctic regions</p> <p>Known species: five species</p>Published as part of <i>Ermilov, Sergey G. & Klimov, Pavel B., 2017, Generic revision of the large-winged mite superfamilY Galumnoidea (Acari, Oribatida) of the world, pp. 1-72 in Zootaxa 4357 (1)</i> on page 20, DOI: 10.11646/zootaxa.4357.1.1, <a href="http://zenodo.org/record/1066658">http://zenodo.org/record/1066658</a>
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
Effect of herbivory on water relations of leaves from a tropical forest
No full textHerz H, Engelbrecht B, Beyschlag W, Hölldobler B. Effect of herbivory on water relations of leaves from a tropical forest. In: Kappen L, ed. Ökosystemforschung und Ökosystem-Management. Verhandlungen der Gesellschaft für Ökologie. Vol 30. Berlin: Parey; 2000: 23-23
Carinogalumna Engelbrecht 1973
No full textGenus Carinogalumna Engelbrecht, 1973 (= Paracarinogalumna Mahunka, 1998 —syn.: Subías 2004, Pseudogalumna Pérez-Íñigo & Baggio, 1994 —syn.: Subías 2004)—see Note 3.3 in Taxonomic notes section Type species: Carinogalumna montana Engelbrecht, 1973, p. 396 4. Two previous synonymies, Angulogalumna Grishina, 1981 (= Cuspidogalumna Starý, 2005) and Galumna (Galumna) Heyden, 1826 (= Kinezogalumna Аoki & Hu, 1993), were made online in electronically distributed works (Subías 2004, online versions 2008, 2009, respectively). Unfortunately, these works do not meet the ICZN criteria of publication (Аrt. 8.5). Here we attribute these synonyms and the resulting new combinations to L.S. Subías. Without sexual dimorphism in prodorsum and notogaster, notogaster rounded posteriorly in both genders. Body surface without strongly developed sculpture or ornamentation. Rostrum pointed or with trapezoid ledge. Lamellar lines present, long, costula-like, straight (directed to rostrum) or curving backwards at ventral end, sublamellar lines absent or present, long, thin, curving backwards at ventral end. Rostral setae close to ends of lamellar lines (if they straight) or medial to lamellar lines and distanced from them. Lamellar setae usually medial, exceptionally lateral to lamellar lines. Bothridial setae setiform, clavate, fusiform, lanceolate. Dorsosejugal suture and postanal porose area absent or present. Notogastral setae represented by 10 pairs of alveoli, one pair on pteromorphs. Octotaxic system represented by porose areas, saccules absent, one pair of Aa. Median pore absent or present in females and males, undivided. Pteromorphs clearly bilobed. Without thorn-like structures behind pteromorphs, dark band anterior to genital aperture and anal and adanal neotrichy. Adanal lyrifissures located close and lateral to anal aperture. Leg tarsi with three claws. Leg setae not modified. Statement of monophyly: Non-monophyletic—see Note 4.3 in Taxonomic notes section Distribution: Pantropical region (except Australian region) Known species: five speciesPublished as part of Ermilov, Sergey G. & Klimov, Pavel B., 2017, Generic revision of the large-winged mite superfamilY Galumnoidea (Acari, Oribatida) of the world, pp. 1-72 in Zootaxa 4357 (1) on pages 17-19, DOI: 10.11646/zootaxa.4357.1.1, http://zenodo.org/record/106665
Ryhiner-Kartensammlung / 42/B Une belle veüe dans le canton de Suisse qui s'appelle Pünden : = Ein schöner Prospect in Pünden
No full textTitel und Legende unterhalb der KarteNumerierung oben rechts: "3
Ryhiner-Kartensammlung / 26/B Comitatus Tyrolis tabula : studiô et operâ cujusdam geographi, S.I
No full textPfeffel et Engelbrecht sc. et excud.Titelkartusche oben Mitte, bildl. Darstellungen unten links und rechtsUrsprungswerk: "Germania Austriaca, seu topographia omnium Germaniae provinciarum" von Ignaz Reiffenstuell S.J. (Wien : Johann Georg Schlegel, 1701
Pläne und Ansichten / 45/B Seiten der kleinen Bäädern : = Le cote des bains petit
No full textOhne Titel, deutsche und französische Legende unterhalb der Karte ("a. Seiten der kleinen Bäädern ..."
Pläne und Ansichten / 44/B Ein Egg von der Stadt Baaden : = Un coin de la ville de Baden
No full textOhne Titel, deutsche und französische Legende unterhalb der Karte ("a. Ein Egg von der Stadt Baaden ..."
Pläne und Ansichten / 46/B Das alte Schloss der Statt Baaden : = Le vieux chateau de la ville de Baden
No full textOhne Titel, deutsche und französische Legende unterhalb der Karte ("a. Das alte Schloss der statt Baaden ..."
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