52,241 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
Arctoseius haarlovi Lindquist & Makarova 2011
No full textArctoseius haarlovi Lindquist & Makarova , 2011 Arctoseius haarlovi Lindquist, 1964 a: 103; 1964 b: 3895; Farrier & Hennessey, 1993: 24; Makarova, 2000 c: 914; 2000 d: S 139; 2000 e: 1046; 2000 f: S 144 (nomen nudum). Arctoseius haarlovi Lindquist & Makarova, 2011 a: 935. Arctoseius haarlovi.— Lindquist & Makarova, 2011 b: 1066; Makarova & Lindquist, 2013: 23. TYPE DEPOSITORY: Canadian National Collection of Insects, Arachnids and Nematodes, Ottawa, Canada. TYPE LOCALITY AND HABITAT: Spitsbergen, Advent Bay, near Longyearbyen, Norway, dry substrate sparsely covered by Carex subspathacea [Plantae: Cyperaceae]. NOTES: (a) this species was described in an unpublished thesis (Lindquist, 1964 a: 103), which was not produced in numerous identical and durable copies (ICZN Article 8.1.3.1). The mention of this name in Lindquist (1964 b: 3895) was not accompanied by a description (ICZN Article 13.1); (b) specimens mentioned as Arctoseius laterincisus Thor by Weis-Fogh (1948: 257), Evans (1955: 288), Chant (1963: 249) and Karg (1971 b: 268, 1993: 267) were re-identified as A. haarlovi by Lindquist & Makarova (2011 a: 935).Published as part of De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1) on page 80, DOI: 10.11646/zootaxa.4112.1.1, http://zenodo.org/record/39947
Nomenclatural notes on the names Gaeolaelaps and Geolaelaps (Acari: Laelapidae)
No full textHalliday, R. B., Lindquist, E. E. (2007): Nomenclatural notes on the names Gaeolaelaps and Geolaelaps (Acari: Laelapidae). Zootaxa 1621 (1): 65-67, DOI: 10.11646/zootaxa.1621.1.6, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1621.1.
Nomenclatural notes on the names Gaeolaelaps and Geolaelaps (Acari: Laelapidae)
No full textHalliday, R. B., Lindquist, E. E. (2007): Nomenclatural notes on the names Gaeolaelaps and Geolaelaps (Acari: Laelapidae). Zootaxa 1621 (1): 65-67, DOI: 10.11646/zootaxa.1621.1.6, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1621.1.
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
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
Self-archiving practice and the influence of publisher policies in the social sciences
No full textAuthors in different disciplines exhibit very different behaviours on the so-called ‘green’ road to open access, i.e. self-archiving. This study looks at the self-archiving behaviour of authors publishing in leading journals in six social science disciplines. It tests the hypothesis that authors are self-archiving according to the norms of their respective disciplines rather than following self-archiving policies of publishers, and that, as a result, they are self-archiving significant numbers of publisher PDF versions. It finds significant levels of
self-archiving, as well as significant self-archiving of
the publisher PDF version, in all the disciplines
investigated. Publishers’ self-archiving policies have
no influence on author self-archiving practice
Proctolaelaps paulista Mineiro, Lindquist & Moraes 2009
No full text<p> <b> <i>Proctolaelaps paulista</i> Mineiro</b> , <b>Lindquist & Moraes</b>, <b>2009</b></p> <p> <i>Proctolaelaps paulista</i> Mineiro, Lindquist & Moraes, 2009: 22.</p> <p>TYPE DEPOSITORY: Setor de Zoologia, Departmento de Entomologia e Acarologia (mentioned as Departmento de Entomologia, Fitopatologia e Zoologia Agrícola), Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, São Paulo, Brazil.</p> <p>TYPE LOCALITY AND HABITAT: Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, São Paulo, Brazil, in soil of a corn [Plantae: Poaceae] field.</p>Published as part of <i>De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1)</i> on page 221, DOI: 10.11646/zootaxa.4112.1.1, <a href="http://zenodo.org/record/399477">http://zenodo.org/record/399477</a>
Antennochelidae Lindquist & Moraza 2014, fam. nov.
No full textFamily ANTENNOCHELIDAE fam. nov. <p> Type genus: <i>Antennocheles</i> new genus. Family monotypic, based on adult female and male, deutonymphal and protonymphal material representing one new genus and two new species.</p> <i>Diagnosis</i> <p> Adults and nymphs are uniquely apomorphic among members of the superfamily Ascoidea in their chelicerae having the basal and middle articles of the shaft greatly elongated, capable of being projected beyond the body for a distance slightly greater than the length of the idiosoma when feeding, yet retractable by a sheathing mechanism entirely within the idiosoma when at rest. The sclerotized intercoxal region of adults is unique in having a pair of invaginations associated with poroids <i>iv2</i>, which seem to be apodematal struts for muscular insertions between the second and third pairs of sternal setae. The subcapitulum of adults and nymphs has the four pairs of hypostomatic setae aligned longitudinally, rather than <i>hyp-2</i> and <i>hyp-3</i> being aligned transversally (an attribute otherwise typical among families of the distantly related cohort Uropodina, and to a variable extent in the Veigaiidae). Setation of the idiosoma and legs is nearly holotrichous; however, among the few deficiencies detailed in the description for the genus, the absence of deutonymphal seta <i>al-2</i> proximal to the lyrifissure on the femur of legs II is extraordinary.</p> <i>Description</i> <p> <i>Gnathosoma.</i> Gnathotectum well developed, triramous. Cheliceral shafts elongated, each fully retractable inside an elastic sheath and capable of being projected outside the gnathosoma for a distance up to slightly longer than the idiosomatic length. Cheliceral digits normal, apposed, dentate; fixed digit with setiform pilus dentilis, and with hyaline rim smooth, unfringed along paraxial face above base of movable digit; movable digit lacking a pointed process on ventral face; movable digit of male with spermatodactyl digit-like, directed anteriorly, not recurved basally (Figures 4A, B, 12A). Corniculi normal in form, parallel (Figures 4D, 9C, D); internal malae well developed; salivary stylets normally developed, angled anteromedially along midlength, blunt apically; labrum normally developed, blade-like, with finely fringed margins, projecting slightly beyond apices of corniculi. Subcapitulum with the four pairs of setae smooth, aligned longitudinally, rather than <i>h2</i> and <i>h3</i> being aligned transversally. Deutosternum with seven rows of denticles of similar width (Figures 4D, 9C). Palpi with normal setation as described for Gamasina by Evans (1964), including only one trochanter seta on protonymph; palpfemoral seta <i>al</i> and palpgenual setae <i>al- 1</i> and <i>al-2</i> more or less spatulate; palptarsal apotele two-tined (Figure 9C).</p> <p> <i>Idiosomal dorsum. Adult</i> (Figures 1A, 3A, 8A, 12C). Dorsal shield entire, well sclerotized, nearly holotrichous (details in description of genus), with caudal setae <i>J5</i> present, and with setae <i>Z5</i> inserted laterad <i>J5</i>. Peritrematal shields broadly united with dorsal shield anteriorly; peritremes well developed.</p> <p> <i>Deutonymph</i>. Dorsal shield well sclerotized, with lateral incisions reaching to level of setae <i>Z1</i>; paravertical poroids <i>idj1</i> added to protonymphal complement. Peritrematal shields not uniting with dorsal shield anteriorly (Figures 6A, 13A,B).</p> <p> <i>Protonymph</i>. Idiosoma with well sclerotized podonotal and pygidial shields. Podonotum holotrichous, with 11 pairs of setae on shield, flanked by <i>r2</i>, <i>r3</i>, <i>r5</i>, <i>s6</i> on soft cuticle. Opisthonotum holotrichous, with eight pairs of setae, including <i>S4</i>, <i>S5</i>, on pygidial shield, and seven pairs of setae on soft interscutal cuticle. Mesonotal scutellae weakly sclerotized as three pairs on sigillar areas between setae <i>J1–J2</i> and <i>Z1–Z2</i> (Figures 7A, 14A).</p> <p> <i>Idiosomal venter. Adult female</i> (Figures 2A,B, 9A, C). Tritosternum well developed. Sternal shield entire, with well developed endopodal extensions between coxae I–II and II– III, with three pairs of setae, two pairs of poroids, and a pair of sclerotized, concave invaginations closely lateral to poroids <i>iv2</i> (Figure 15B); poroids <i>iv3</i> and setae <i>st4</i> on small metasternal plates. Endopodal strips between coxae III and IV free, well defined. Epigynal shield well developed, with one pair of setae, and flanked by paragenital poroids <i>iv5</i> on soft cuticle. Ventrianal shield well developed, with paranal setae inserted at mid-level of anus; posterior margin of shield free from that of dorsal shield; cribrum well developed on posterior margin of shield behind level of postanal seta, but not extending onto caudal region of dorsal shield; anal valves nude. Peritrematal shield broadly connected with exopodal strips beside coxae IV; peritrematal shield with poroid <i>ip2</i> and gland pore <i>gp2</i> along mid-length, and with two poroids and one gland pore (<i>gp3</i>) in area behind stigma (Figure 9A); exopodal strip continuous alongside peritrematal shield by coxae I–III. Spermathecal apparatus of the laelapoid type, tubular, lacking a sclerotized calyx with minor duct and expandable vesicle (Figures 1C, 8C); sperm induction pore located on intercoxal region between bases of legs III and IV.</p> <p> <i>Adult male</i> (Figures 3B, 4D, 12D). Sternitigenital shield consolidated with ventrianal shield, with transverse line of fusion evident. Sternitigenital region of holoventral shield continuous with endopodal extensions between coxae I–II, II–III and III–IV, united with exopodal/peritrematal strips behind coxae IV, with five pairs of setae, three pairs of poroids, and a similar pair of sclerotized, apodematal invaginations closely lateral to poroids <i>iv2</i> as in female. Ventrianal region of holoventral shield encompassing sigillar areas representing metapodal plates, and with broadly rounded posterior margin and cribrum of shield as in female, well separated from caudal margin of dorsal shield (Figures 3B, 12C). Exopodal and peritrematal shielding fused with ventrianal shield; peritremes similar to those on adult female.</p> <p> <i>Deutonymph</i> (Figures 6B, 13C). Sternal shield not contiguous with endopodal extensions and platelets (sigilla) between coxae I and II. Intercoxal soft cuticle with setae <i>st5</i>, and with poroids <i>iv3</i> and setae <i>st4</i> added to protonymphal complement. Opisthogaster with well sclerotized anal shield much wider than long. Rim of exopodal plate behind coxa IV well delineated, with gland pore <i>gv2</i> at its medial extremity.</p> <p> <i>Protonymph</i> (Figures 7B, 14C). Sternal shield usually not continuous with weak endopodal platelets (sigilla) between coxae I–II and II–III, and with three pairs of setae and two pairs of poroids. Intercoxal soft cuticle with or without setae <i>st5</i> between bases of legs IV. Opisthogaster with well sclerotized anal shield much wider than long, lacking euanal setae, and with holotrichous four pairs of ventral setae <i>JV1</i>, <i>JV2</i>, <i>JV5</i>, <i>ZV2</i> on soft cuticle around anal shield. Rim of exopodal plate discernible behind coxa IV, with gland pore <i>gv2</i> near its medial extremity.</p> <p> <i>Legs.</i> Legs of similarly moderate length, I and IV not elongated (Figures 5, 10, 11). Tarsus I with paired claws and round-lobed pulvillus; sensilla <i>s</i> inconspicuous, slightly lanceolate (Figure 11D–F). Tarsi II–IV with paired claws and rounded pulvilli well developed, inserted on well-developed pretarsi; ventral setae <i>v-1</i> and to lesser extent <i>v-2</i> spine-like (Figure 11A,B); ventral face of coxa I of deutonymph and adult without serrated ridges. Legs I to IV with nearly full complement of setae typical of Ascoidea (chaetotaxy detailed in description of genus), except for these deutonymphal deficiencies: <i>ad</i> on trochanter I, <i>al-2</i> and <i>ad-3</i> on femur II, and <i>pv-1</i> on genua III–IV. Protonymph with normal complement of leg setae as described for Ascidae by Lindquist and Evans (1965) and detailed in description for genus. Legs with some femoral setae thickened, spine-like in form on both female and male, and to lesser extent on deutonymph and protonymph, including dorsal setae <i>ad-1</i>, <i>pd-1</i>, <i>pd-2</i> on femora I–II, <i>ad-1</i>, <i>ad-2</i>, <i>pd-1</i> on femora III–IV, and ventral seta <i>av</i> on femora II–III. Adult sexually dimorphic setation inconspicuous.</p>Published as part of <i>Lindquist, Evert E. & Moraza, María L., 2014, Mites coexistent with neotropical hispine beetles in unfurled leaves of Heliconia: a new genus and family of the Ascoidea (Acari: Mesostigmata: Gamasina), pp. 1611-1651 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 48 (27 - 28)</i> on pages 1613-1615, DOI: 10.1080/00222933.2013.877995, <a href="http://zenodo.org/record/5193844">http://zenodo.org/record/5193844</a>
Podotarsonemus queenslandensis Seeman & Lindquist & Husband 2018, sp. nov.
No full text<i>Podotarsonemus queenslandensis</i> Seeman, Lindquist & Husband sp. nov. <p>Figures 23–24</p> <p> <b>Type material.</b> Holotype. Adult female. <b>AUSTRALIA</b>, Split Rock, 14 km SW of Laura, Far North Queensland, 23–26 Jun 1975, GB Monteith, ex <i>Hedotettix amplus</i> (Sjöstedt) (Tetrigidae) (Fig. 29B). In QM.</p> <p>Paratypes. 9 females, same data as holotype. In QM except 1 female in each of CNCI and UMMZ.</p> <p> <b>Diagnosis.</b> Female: Palps with 1 seta; chelicerae with 1 weak tooth; prodorsal plate with imbricate sculpturing behind setae <i>sc2</i>; setae <i>sc1</i> absent; vestigial setae <i>v2</i> expressed as anterolateral invaginations; femora I–II without seta <i>lʹ, d</i>; genua II–III bare; tarsi II–III with 5 setae, seta <i>uʹʹ</i> present; trochanter IV without seta; coxisternal plates III–IV separated by soft cuticle; setae <i>h</i> attenuate,> 150 long; femorogenu IV with 2 setae; tracheal atria separate, post-atrial sac lightly sclerotized, not punctate.</p> <p> <b>Description.</b> ADULT FEMALE (Figures 23–24, n = 10 measured)</p> <p> <i>Gnathosoma.</i> Length 46–49, width 42–47. Palps 8–11, with 1 seta (5 long). Cheliceral stylets 16–19, each with 1 weakly formed tooth. Pharynx length 31–34, width 15–16. Dorsal setae <i>ch</i> 15–22, ventral setae <i>su</i> 15–23, palpcoxal setae <i>e</i> 11–13.</p> <p> <i>Idiosoma</i>. Length 200 (physogastric 525), width 130–140. Tracheal atria separate, post-atrial sac lightly sclerotized, not punctate, with two small distal prongs indicating separate tracheae. Prodorsal plate 78–83 long, 102–114 wide, with punctate sculpturing anteriorly, imbricate sculpturing posterior to <i>sc2</i>; with 2 pairs of setae: <i>v 1</i> 16–18, thickened, with small barbs, <i>sc2</i> 57–64, attenuate, and vestigial <i>v2</i> expressed as anterolateral invaginations. Distance between setae <i>v1-v 1</i> 31–35, <i>v2-v2</i> 49, <i>sc2-sc2</i> 55– 60, <i>v1</i> -sc 2 18–23. Plates C, D with punctate sculpturing anteriorly, imbricated posteriorly, EF, H with punctate sculpturing, H heavily so. Setae <i>c1, d, e, f</i> thickened, with small barbs, <i>c 1</i> 15–18, <i>c 2</i> 30–36, <i>d</i> 13–15, <i>e</i> 10–13, <i>f</i> 11–13. Distance between setae <i>c1-c1</i> 66–91, <i>c2-c2</i> 120–150, <i>c1-c 2</i> 25–31, <i>d-d</i> 50–59, <i>e-e</i> 45–49, <i>f-f</i> 25–30. Setae <i>h</i> attenuate,> 140. Distance between setae <i>h-h</i> 21–28. Cupules <i>ia</i>, <i>im</i> present, <i>ih</i> indiscernible. Setae <i>ps</i> attenuate 260, distance between setae <i>ps-ps</i> 8–10. Coxisternal setae attenuate, <i>1a</i> 8–10, <i>2a</i> 15–22, <i>3a</i> > 130, <i>3b</i> > 90. Distance between setae <i>1a-1a</i> 19–20, <i>2a-2a</i> 40–41, <i>3a-3a</i> 9–18, <i>3b-3b</i> 26; alveolar vestiges of setae <i>1b, 2b</i> present.</p> <p> <i>Legs.</i> Leg lengths: I 45 –47, II 46 –48, III 46 –47. Leg IV Fe-Ge length 18–20, Ti-Ta length 17–18. Leg III, femur and genu fused.</p> <p> Femur I <i>lʹʹ</i> 3–5, <i>vʹʹ</i> 13–18; genu I <i>lʹ</i> 7–12, <i>lʹʹ</i> 6–8, <i>vʹ</i> 4–5, <i>vʹʹ</i> 5–7; tibia and tarsus I fused, tibial setae <i>d</i> 17–20, <i>lʹ</i> 6–7, <i>lʹʹ</i> 5–6, <i>vʹ</i> 6–8, <i>vʹʹ</i> 7–13, solenidion <i>φ</i> 3–4, tarsal setae <i>tcʹ</i> 10–11, <i>tcʹʹ</i> 10–12, <i>pvʹ</i> 9–10, <i>pvʹʹ</i> 7–8, <i>s</i> spine-like, 6– 7, solenidion <i>ω</i> 7.</p> <p> Femur II <i>vʹʹ</i> 11–15; tibia II <i>d</i> 15–18, <i>lʹ</i> 9–11, <i>vʹ</i> 13–16, <i>vʹʹ</i> 13–17; tarsus II <i>tcʹ</i> 12–14, <i>tcʹʹ</i> 16–21, <i>pvʹ</i> 12–14, <i>uʹ</i> spine-like, 7, <i>uʹʹ</i> 1, solenidion <i>ω</i> 4–6.</p> <p> Tibia III <i>d</i> 19–26, <i>lʹ</i> 13–15, <i>vʹ</i> 11–15, <i>vʹʹ</i> 14–19; tarsus III <i>tcʹ</i> 17–19, <i>tcʹʹ</i> 16–17, <i>pvʹ</i> 16–17, <i>uʹ</i> spine-like, 6–7, <i>uʹʹ</i> 1.</p> <p>Femorogenu IV with 2 setae, proximal femoral seta 20–23, distal genual seta 40–47; tibiotarsus with attenuate ventral tibial seta> 80 and terminal tarsal seta> 210.</p> <p>ADULT MALE—Unknown</p> <p>LARVA—Unknown</p> <p> <b>Etymology.</b> The species name <i>queenslandensis</i> refers to the state (Queensland, Australia) where the type specimens were collected.</p> <p> <b>Remarks.</b> The female of <i>Podotarsonemus queenslandensis</i> is most similar to that of <i>P. nipponicus</i> and can be distinguished in the <i>Differential diagnosis</i> for that species.</p>Published as part of <i>Seeman, Owen D., Lindquist, Evert E. & Husband, Robert W., 2018, A new tribe of tarsonemid mites (Trombidiformes: Heterostigmatina) parasitic on tetrigid grasshoppers (Orthoptera), pp. 1-54 in Zootaxa 4418 (1)</i> on page 40, DOI: 10.11646/zootaxa.4418.1.1, <a href="http://zenodo.org/record/1242435">http://zenodo.org/record/1242435</a>
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