323,295 research outputs found
Das wahre Null—Warw der Zeitskala von G.De Geer
No full textNach De Geer's grundlegender Darstellung (1911) soll das Nulljahr von der Bipartition selbst gerechnet werden, also von dem Eisrand, der im Schnittpunkt zwischen Eisscheide und Indal-Fluß gelegen hat. Über dem jüngsten Megawarw (Y) liegt der postglaziale Fjordton, der den Klimaumschlag regional bezeugt. Wegen eines von Caldenius (1924) fehldatierten Warws, Mega X, das gar nicht die größte Dränierung bezeichnet, würde De Geer sicher nicht den bezeugten Eingangspunkt seiner Zeitrechnung fälschlich ändern. Hier steht also der FINIS AETATIS GLACIALIS in der Natur selbst klar geschaffen und datiert, wie er nach De Geer's ausgesprochenem Wunsch nicht geändert werden sollte (1911, GFF 33, S. 470).researc
Genera et species insectorum e generosissimi auctoris scriptis
No full texte generosissimi auctoris scriptis extraxit, digessit, Latine quoad partem reddidit, et terminologiam insectorum Linneanam additit Anders Jahan Retzius ..
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
Buckley, A E, 418054
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/374519Surname: BUCKLEY
Given Name(s) or Initials: A E
Military Service Number or Last Known Location: 418054
Missing, Wounded and Prisoner of War Enquiry Card Index Number: 53891185894
Item: [2016.0049.06827] "Buckley, A E, 418054
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>
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
Orphulella punctata De Geer 1773
No full textOrphulella punctata (De Geer, 1773) Acrydium punctatum De Geer, 1773: 503. Orphulella punctata: Amédégnato et al., 1995: 703. Lectotype female, from unknown locality, designated by Otte (1979). [NHRS]. Distribution. Central Mexico to Argentina, Caribbean and North America.Published as part of Yong, Sheyla & Perez-Gelabert, Daniel E., 2014, Grasshoppers, Crickets and Katydids (Insecta: Orthoptera) of Cuba: an annotated checklist, pp. 401-438 in Zootaxa 3827 (4) on page 411, DOI: 10.11646/zootaxa.3827.4.1, http://zenodo.org/record/22858
GEER Status Update
No full textHistory: The Glenn Extreme Environments Rig (GEER) first became operational in the early part of 2015. Since that time GEER has completed a number of scientific tests and has undergone improvements in the chemical delivery system and analytics following a year of operations experience. Recent Updates: In June 2016, the GEER process system was rebuilt to provide a more robust system, higher accuracy and new capabilities. New insulation was installed on the exterior of the pressure vessel and gas lines. The newly revamped GEER plumbing system can provide extremely precise custom gas mixtures using any gas desired by the investigator in any combination. GEER can heat the resulting mixture up to 500 deg C and 1500 psia. The 304 stainless steel vessel walls were polished to reduce corrosion rate and reduce unwanted chemical reactions. The process lines were replaced with high purity Sulfinert coated tubing. The GEER team added the ability to individually boost specialty gases to GEER thus allowing operators to make very precise changes to the gas chemistry inside of GEER during a test while at high temperature and pressure. High accuracy mass flow meters were added to further improve gas mixing accuracy and precision. An in-line, integrated Inficon MicroGC Fusion was added for real time gas analysis along with a high purity gas sampling system, providing fully automated, real time analysis of the gas chemistry inside of GEER in minutes. This complements a co-located mass spectrometer and both are used for regular monitoring of the vessel chemistry. All internal vessel components were replaced with polished 304SS equivalents. Hot vent down capability was increased. Finally, an automated liquid injection system was added and is rated for max vessel operating conditions of (1500 psia, 500 C). Recent Results and Publications: In May 2016, GEER completed a test that exposed high temperature electronics to Venus surface conditions for 21.5 days. This demonstrated the potential for operating robotic spacecraft in the Venus environment without the need for thermal or environmental protection. Results from this test were published in December 2016 and received national media attention. In April 2017 GEER implemented an 80 day test at Venus surface conditions to simulate chemical weathering of expected Venus minerals. This test supported a ROSES award to a team led by Prof. Ralph Harvey of Case Western Reserve University. The test concluded in July 2017 and nearly doubled previous operation record of 42 days at Venus surface conditions. Preliminary results of these and previous experiments were presented at the recent Venus Modeling Workshop. In June 2017, NASA TM2017-219437 "Chemical and Microstructural Changes in Metallic and Ceramic Materials Exposed to Venusian Surface Conditions" was published. This report provides an extensive and valuable resource detailing the behavior of a variety of engineering materials at Venus surface conditions. Community Involvement: An external science advisory panel has been formed
GEER Status Update
No full textThis presentation provides a summary of Glenn Extreme Environment Rig (GEER) activities related to Venus exploration
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
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