127,186 research outputs found
Hoplitomeryx devosi Geer, 2014, sp. nov.
No full text<i>Hoplitomeryx devosi</i> sp. nov. <p>Fig. 7 A–E</p> <p> <i>Hoplitomeryx matthei</i> Leinders, 1984 — Leinders 1984 (partim): p. 3, fig. 1 [RGM 261.101]; Mazza & Rustioni 2011 (partim): p. 1320 [RGM 261.102].</p> <p> <i>Hoplitomeryx</i> Leinders, 1984, ear region type V—Leinders 1984: p. 34, 35, pl. 7 [RGM 261.102].</p> <p> <i>Hoplitomeryx</i> Leinders, 1984, ear region type IV—Leinders 1984: p. 31, 35, pl. 6 [RGM 261.096].</p> <p> <i>Hoplitomeryx</i> Leinders, 1984, size 1—Van der Geer 2005: p. 330, 333; Van der Geer 2008 (partim): p. 153, 154, fig. 4, 5.</p> <p> <i>Hoplitomeryx</i> Leinders, 1984, size 2—Van der Geer 2008 (partim): p. 153, fig. 4.</p> <p> <i>Hoplitomeryx apulicus</i> Mazza & Rustioni, 2011 — Mazza & Rustioni 2011 (partim): p. 1318, fig. 3, table 2 [RGM 178.445, RGM 178.656, RGM 260.940, RGM 260.966, RGM 425.234].</p> <p> <i>Hoplitomeryx falcidens</i> Mazza & Rustioni, 2011 — Mazza & Rustioni 2011 (partim): p. 1312, fig. 1, table 2 [RGM 260.941, RGM 261.132, RGM 261.133, RGM 261.447, RGM 425.201].</p> <p> <i>Hoplitomeryx minutus</i> Mazza & Rustioni, 2011 — Mazza & Rustioni 2011 (partim): p. 1306 [RGM 261.147].</p> <p> <b>Holotype.</b> Left metacarpal RGM 178.517.</p> <p> <b>Paratypes.</b> Distal humerus fragment RGM 443.118, radius RGM 260.860, femur RGM 425.314 (Fig. 5 K), tibia RGM 425.285, astragal RGM 215.234, calcaneum RGM 425.253, posterior second phalanges RGM 261.251 (Fig. 5 E) and RGM 261.254, pelvis fragment (acetabulum) RGM 261.221, scapula fragment (glenoid) RGM 179.317, mandible RGM 260.940, maxilla fragments RGM 260.941 and RGM 425.201, orbital horn core RGM 260.926.</p> <p> <b>Referred specimens.</b> See Appendix III, fig. 4I, J and fig. 5I.</p> <p> <b>Diagnosis</b>. A small-sized, very robust hoplitomerycid. Estimated body mass 21.0 kg. The trochlea of the astragal is either non-parallel sided or almost parallel. The tibia is spirally winded. The fusion between ulna and radius is extensive and includes the part distally of the spatium interosseum. The ulna leaves a trace on the radius in the form of a ridge. The radial facet on the distal radius extends further palmar than the intermedial facet and is deeper and broader than the intermedial facet.</p> <p> <b>Differential diagnosis.</b> About half the body size of <i>Hoplitomeryx matthei</i> and much more robust.</p> <p> <b>Derivation of name.</b> Named after John de Vos, former curator of the Dubois collection, Naturalis Biodiversity Center, Leiden for his contribution to the knowledge of fossil insular mammals, in particular insular deer from the Mediterranean islands.</p> <p> <b>Preservation and deposition.</b> Naturalis Biodiversity Center, Leiden, the Netherlands (formerly Rijksmuseum van Geologie en Mineralogie (RGM)).</p> <p> <b>Type locality and horizon.</b> Late Miocene (Middle or Late Turolian, MN12-13) fissure filling with code San Giovannino in an abandoned limestone quarry near the farm of San Giovannino south of the provincial road between Poggio Imperiale and Apricena (Province of Foggia, Apulia, Italy).</p> <p> <b>Studied localities.</b> Fissure fillings with codes Biancone 2, Chirò 2, 2N, 2S, 3, 5, 5A, 7, 10A, 10B, 13, 14, 14B, 18, 26, 27, 28A, 29, 30, D1 and D3, Fina D, H, K and N, Gervasio, Nazario 2A, 3 and 4, Pizzicoli 12, Posticchia 1B, San Giovannino and Trefossi 2A. All localities are located in the north-western portion of the Gargano Peninsula, Apulia, south-eastern Italy. Probable other locality. Fissure filling with code Chirò 24 in the limestone quarry Chirò along the provincial road between Poggio Imperiale and Lessina (Province of Foggia, Apulia, Italy).</p> <p> <b>Description of the holotype.</b> RGM 178.517 is a complete, left metacarpal with some splinters of the dorsal surface missing. Basically, it corresponds in morphology with that of <i>Cervus</i> and accordingly, the medial facet is larger than the lateral facet on the proximal articulation. It is extremely massive and robust. The crest separating the medial and lateral proximal facet ends in the central fossa and runs more or less parasagitally. The crest forms a pronounced ridge between the two facets. The fossa is situated centrally and the contact area between the lateral and medial facet is minimal. The central fossa is in contact with the palmar surface at which point it is wide. The proximal tubercle for attachment of the carpal ligaments on the dorsal surface is pronounced. The scars for the lateral metacarpals are very pronounced. The palmar groove for the M. interosseus palmaris is clearly present up to about one-third above the distal end of the shaft. The distal end of the metacarpal is straight with the lateral and medial trochlea extending equally far. The dorsal profile of both epicondyls in distal view is cone-shaped.</p> <p> <b>Measurements.</b> Holotype: maximal length = 94.5 mm, proximal depth (DAPP) = 14.6 mm, proximal width (DTP) = 23.2 mm, distal depth (DAPD) = 12.0 mm, distal width (DTD) = 21.8 mm. For measurements of referred specimens, see Appendix III (linear measurements) and Appendix I and II (body mass estimations).</p> <p> <b>Remarks.</b> San Giovannino falls within the younger faunal complex (no hamsters; see Introduction) and is one of the youngest localities. Skull fragment RGM 261.102 (ear region type V in Leinders (1984) from the quarry Gervasio) is smaller than the type skull and differs from it by a circular foramen magnum and larger bullae. Based on occipital width, this skull fragment belongs to the smallest species. The configuration of the proximal articulation of the holotype metacarpal was earlier described as morphotype 2 (Van der Geer 2005) and is also observed in the Tokunoshima-type of <i>Cervus astylodon</i> (Matsumoto, 1926) (Matsumoto & Otsuka 2000), <i>Alces alces</i> (Linnaeus, 1758) and <i>Cervalces</i> Scott, 1885. Maxillaries RGM 260.941 and RGM 425.201 do not belong to the same individual (contra Mazza & Rustioni 2011), based on their different eruption patterns (this is confirmed by their different hypsodonty index, see above).</p>Published as part of <i>Van Der Geer, Alexandra A. E., 2014, Systematic revision of the family Hoplitomerycidae Leinders, 1984 (Artiodactyla: Cervoidea), with the description of a new genus and four new species, pp. 1-32 in Zootaxa 3847 (1)</i> on pages 23-25, DOI: 10.11646/zootaxa.3847.1.1, <a href="http://zenodo.org/record/286815">http://zenodo.org/record/286815</a>
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
Ätten De Geer. Stamtafloröfver samtliga dess grenar från äldsta till närvarande tid.
No full text"Utförd på uppdrag af ... friherre Louis de Geer til Leufsta."--Förord, signed : E.W. Dahlgren."250 numrerade exemplar af hvilka detta är n : r 132 ... n : 1-5 på japansk papper, n : r 6-20 på 'Strathmore Japan parchment', n : r 21-250 på lumptryckpapper från Grycksbo.Colored plates accompanied by guard sheets with descriptive letterpress."Källor": p. 13-14.Mode of access: Internet
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
Hoplitomeryx kriegsmani Geer, 2014, sp. nov.
No full textHoplitomeryx kriegsmani sp. nov. Fig. 7 J–M Hoplitomeryx Leinders, 1984, size 4 —Van der Geer 2005: p. 331, 332; Van der Geer 2008: p. 153, 154, fig. 4, 5. Hoplitomeryx Leinders, 1984, size 3 —Van der Geer 2005 (partim): p. 331 [RGM 178.516]. Holotype. Left metacarpal RGM 178.516. Paratypes. Humerus fragment (trochanter major) RGM 425.254, anterior first phalanx RGM 178.503 (Fig. 5 C, D), anterior second phalanges RGM 260.876, RGM 425.259, RGM 260.875 and RGM 260.862, metacarpal fragment RGM 425.322, tibia RGM 335.882 + 425.328 (Fig. 6 A), third cervical vertebra RGM 425.311. Referred specimens. See Appendix III, and fig. 6 C. Diagnosis. A very large-sized, very slender hoplitomerycid. Estimated body mass is 103.4 kg. The tibia has a straight shaft. The trochlea of the astragal is non-parallel sided. Differential diagnosis. Larger and more slender than all other hoplitomerycid species. About five times the body mass of the smallest species, Hoplitomeryx devosi. The tibia has a straight shaft, unlike the other hoplitomerycid species. Metacarpal length is three times the metacarpal length of H. devosi and one and half times that of H. macpheei. Derivation of name. Named after Leo Kriegsman of Naturalis Biodiversity Center, head of the Department of Geology, for his support of and interest in the study of the evolution of vertebrates on islands. Preservation and deposition. Naturalis Biodiversity Center, Leiden (the Netherlands) (formerly Rijksmuseum van Geologie en Mineralogie (RGM)). Type locality and horizon. Late Miocene (Middle or Late Turolian, MN 12-13) fissure filling with code San Giovannino in an abandoned limestone quarry near the farm of San Giovannino south of the provincial road between Poggio Imperiale and Apricena (Province of Foggia, Apulia, Italy). Studied localities. Fissure fillings with codes Chirò 2, 2N, 7 a, 4, 32 and D 1, Falcone 2 B, Nazario 2 B and 4, Pizzicoli 1, 2 and 12, San Giovannino. All localities are located in the north-western portion of the Gargano Peninsula, Apulia, south-eastern Italy. Probable other locality: fissure filling with code Chirò 31 in the limestone quarry Chirò along the provincial road between Poggio Imperiale and Lessina (Province of Foggia, Apulia, Italy). Description of holotype. RGM 178.516 is an incomplete ruminant metacarpal. It lacks the lower distal part and the proximal articulation above the point where the internal and external tubercle on the mid-palmar groove meet. The distal end includes the complete distal nutritional foramen within the palmar groove. The palmar groove for the M. interosseus palmaris is only present proximally. The sideward and backward bending of the specimen is a post-mortem defect. Measurements. Holotype: maximal length = 190 mm, proximal depth (DAPP) = 17.5 mm, proximal width (DTP) = 30.1 mm. Distal depth (DAPD) and distal width (DTD) cannot be estimated for the holotype, but are available from referred specimen RGM 263.945: DAPD = 22,1 mm, DTD = 36.6 mm. For measurements of all referred specimens, see Appendix III (linear measurements) and Appendix I and II (body mass estimations). Remarks. The holotype might be subadult. A couple of very large juvenile referred specimens (see Appendix III) have a similar size and likely represent subadult stages of this species as well. There is not sufficient information available on the ontogeny of Hoplitomeryx, especially the extend of its growing period, to assign these juveniles to an even larger species. Leinders (1984) already indicated the presence of (very) large, juvenile skull fragments (e.g. RGM 260.933, ear region type III). These skull fragments can, however, not be properly assigned to either this size or to H. macpheei due to the very fragmentated nature of the cranial material. Tibia RGM 335.882 + 425.328 might belong to the same individual as astragal RGM 260.863. The largest specimens of Hoplitomeryx have about twice the body mass of the largest Scontromeryx.Published as part of Van Der Geer, Alexandra A. E., 2014, Systematic revision of the family Hoplitomerycidae Leinders, 1984 (Artiodactyla: Cervoidea), with the description of a new genus and four new species, pp. 1-32 in Zootaxa 3847 (1) on page 26, DOI: 10.11646/zootaxa.3847.1.1, http://zenodo.org/record/28681
Ashley B. Geer, bassoon, Friday, February 23, 2007
No full textIn partial fulfillment of the requirements for the degree of Bachelor of Musi
Hoplitomeryx macpheei Geer, 2014, sp. nov.
No full textHoplitomeryx macpheei sp. nov. Fig. 7 F–I Hoplitomeryx Leinders, 1984, horn core type II—Leinders 1984: p. 21, 22, pl. 5 B [RGM 260.902]. Hoplitomeryx Leinders, 1984, size 3 —Van der Geer 2005 (partim): p. 331, 332; Van der Geer 2008: p. 153, 154, fig. 4, 6. Hoplitomeryx matthei Leinders, 1984 — Mazza & Rustioni 2011 (partim): p. 1320, fig. 3, 6 [RGM 261.141]. Hoplitomeryx magnus Mazza et Rustioni, 2011 — Mazza & Rustioni 2011 (partim): p. 1324, 1325, fig. 4 [RGM 260.951, RGM 261.135]. Holotype. Left metacarpal RGM 260.918. Paratypes. Proximal humerus RGM 260.950, distal humerus RGM 425.278, radius-ulna RGM 425.282 (Fig. 4 E), radius RGM 260.866, unciform RGM 425.264, anterior first phalanx RGM 260.861, anterior second phalanges RGM 260.886 and RGM 261.143, femur RGM 425.245 (Fig. 5 M), patella RGM 425.246 (Fig. 5 N–P), tibia RGM 260.854, astragals RGM 260.863 (Fig. 6 D) and RGM 260.890, calcanei RGM 260.883 and RGM 425.313, first phalanges RGM 260.913 and RGM 260.909, seventh cervical vertebra RGM 425.307, nasal horn core RGM 260.902, associated left and right hemimandibles and maxilla RGM 260.951. Referred specimens. See Appendix III, and Fig. 4 A. Diagnosis. A large-sized hoplitomerycid. Estimated body mass 78.0 kg. The fusion between radius and ulna is weak and the ulna leaves no trace on the radius. The shaft of the tibia is almost straight. The astragal is non-parallel sided. Differential diagnosis. About twice the body size of H. matthei. The lateral horn core is compressed anteroposteriorly unlike the circular cross section seen in H. matthei (horn core type I). Derivation of name. Named after Ross D.E. MacPhee, curator of mammals at the American Museum of Natural History in New York, in honour of his contributions to the knowledge of the evolution and extinction of insular mammals. Preservation and deposition. Naturalis Biodiversity Center, Leiden, the Netherlands (formerly Rijksmuseum van Geologie en Mineralogie (RGM)). Type locality and horizon. Late Miocene (Middle or Late Turolian, MN 12-13) fissure filling with code San Giovannino in an abandoned limestone quarry near the farm of San Giovannino south of the provincial road between Poggio Imperiale and Apricena (Province of Foggia, Apulia, Italy). Studied localities. Fissure fillings with codes Biancone 2, Chirò 2, 3, 5 A, 13, 20A and E, 28 and D 3, Fina H and N, Gervasio, Pizzicoli 1, 4 and 12, San Giovannino. All localities are located in the north-western portion of the Gargano Peninsula, Apulia, south-eastern Italy. Description of holotype. RGM 260.918 is an almost complete metacarpal of which only the distal trochlea is missing distalward of the (fused) epiphyseal line. Its general morphology corresponds to that of Cervus but more slender. The crest that separates the medial and lateral articulation is broken but seems to have ended in the central fossa, making an angle of about twenty degrees with the parasagittal plane. The central fossa is large, situated more or less centrally and makes only minimal contact with the palmar surface. The attachment area for the carpal ligaments on the dorsal surface is weakly developed. The palmar groove for the M. interosseus palmaris is only proximally expressed. The scars for the lateral metacarpals are pronounced. Measurements. Holotype: maximal length = 190 mm, proximal depth (DAPP) = 17.5 mm, proximal width (DTP) = 30.1 mm, distal depth (DAPD; estimated at epiphyseal line) = 13.1 mm, distal width (DTD; estimated at epiphyseal line) = 27 mm. The distal diameters are confirmed by referred distal metacarpal RGM 261.530: DAPD = 14.7 mm, DTD = 28.2 mm. For other measurements of referred specimens, see Appendix III (linear measurements) and Appendix I and II (body mass estimations). Remarks. Skull fragment RGM 261.099 (horn core type IV in Leinders 1984; Pizzicoli 5) represents an animal larger than the type species (H. matthei) but seems not large enough for the largest size group and is here attributed to H. macpheei sp. n.. RGM 261.099 might further be an indication that the configuration and morphology of the horn cores may differ between the species in addition to between the sexes. The lack of associated posterior skull parts and / or maxillae with horn cores hampers a more precise diagnosis based on horn core types. The holotype is more slender than the referred proximal metacarpal RGM 425.322 from the same fissure filling. They likely represent a female and a male individual respectively. The morphology of the proximal articulation of both specimens was earlier described as morphotype 1 (Van der Geer 2005), but RGM 425.322 has a more pronounced crest than the holotype. Patella RGM 425.246 fits perfectly well on the distal femur RGM 425.245.Published as part of Van Der Geer, Alexandra A. E., 2014, Systematic revision of the family Hoplitomerycidae Leinders, 1984 (Artiodactyla: Cervoidea), with the description of a new genus and four new species, pp. 1-32 in Zootaxa 3847 (1) on pages 25-26, DOI: 10.11646/zootaxa.3847.1.1, http://zenodo.org/record/28681
Pediculus humanus subsp. capitis de Geer 1778
No full textPediculus humanus capitis de Geer, 1778 Pediculus humanus capitis de Geer, 1778: 67, pl. 1, figs 6–7. Pediculus humanus capitis de Geer, 1778; Causton et al. 2006: 142. Status, sex and location of types unknown. Type host: Homo sapiens Linnaeus, 1758. Galápagos host: Homo sapiens Linnaeus, 1758. Galápagos locality: Isla Santa Cruz. Galápagos reference: Causton et al. (2006). Other significant references: Ferris (1935: 543, figs 306–327, pls I –III); Kim, Pratt & Stojanovich (1986: 150, pl. 48); Durden & Musser (1994a: 50); Barker (1996: 245). Material examined: 1 female and 1 nymph (1 sample, MONZ). Remarks: A louse introduced to the Galápagos Islands with its human hosts. Family POLYPLACIDAE Fahrenholz, 1912 Polyplacinae Fahrenholz, 1912. Jahrb. Niedersächs. Zool Ver. Hannover 2–4: 58. Type genus: Polyplax Enderlein, 1904. Genus Polyplax Enderlein, 1904 Polyplax Enderlein, 1904. Zool. Anz. 28: 139, 142. Type species: Polyplax spinulosa (Burmeister, 1839) (by original designation).Published as part of Palma, Ricardo L. & Peck, Stewart B., 2013, An annotated checklist of parasitic lice (Insecta: Phthiraptera) from the Galápagos Islands , pp. 1-87 in Zootaxa 3627 (1) on pages 66-67, DOI: 10.11646/zootaxa.3627.1.1, http://zenodo.org/record/526123
Brachyplatys testudonigra De Geer
No full textBrachyplatys testudonigra (De Geer) Published record: Walker (1867) (under syn. B. negamica Walker).Published as part of Krüger, Andreas & Deckert, Jürgen, 2016, True bugs (Hemiptera-Heteroptera) of Botswana — Bibliographical inventory and new records, pp. 33-63 in Zootaxa 4114 (1) on page 50, DOI: 10.11646/zootaxa.4114.1.2, http://zenodo.org/record/25601
Modular forms
No full textModular forms are functions with an enormous amount of symmetry that play a central role in number theory, connecting it with analysis and geometry. They have played a prominent role in mathematics since the 19th century and their study continues to flourish today. Modular forms formed the inspiration for Langlands' conjectures and play an important role in the description of the cohomology of varieties defined over number fields. This collection of up-to-date articles originated from the conference 'Modular Forms' held on the Island of Schiermonnikoog in the Netherlands. A broad range of topics is covered including Hilbert and Siegel modular forms, Weil representations, Tannakian categories and Torelli's theorem. This book is a good source for all researchers and graduate students working on modular forms or related areas of number theory and algebraic geometry.• Collection of articles by leaders in the field; presents the state of the art in modular forms • Topics covered include Siegel modular forms, Hecke eigenvalues of Hilbert modular forms, Weil representations, Tannakian categories and Torelli’s theorem • Ideal for academic researchers and graduate students in number theory and algebraic geometry; string theorists will also find the collection of interes
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