131,733 research outputs found
Stridulivelia ayacucho Polhemus & Spangler 1995
No full textStridulivelia ayacucho Polhemus & Spangler, 1995 (Figs 101, 104) Geographical distribution: Argentina (Torres et al. 2007), Bolivia (Floriano et al. 2017b), Brazil (Polhemus & Spangler 1995), Guyana (Polhemus & Spangler 1995), Paraguay (Polhemus & Spangler 1995), Peru (Polhemus & Spangler 1995), Venezuela (Polhemus & Spangler 1995). Distribution in Brazil: MG (Melo & Nieser 2004), PA (Polhemus & Spangler 1995; Cunha & Juen 2020), SE*, SP (Moreira & Barbosa 2011; Magalhães et al. 2020). Material examined: BRAZIL • Sergipe • 1 male, 1 female; São Cristóvão, Estrada Rita Cacete; -10.985110, -37.286830; 04 May 2018; C.F.B. Floriano, J.M.S. Rodrigues & O.M. Magalhães col.; CEIOC 79749.Published as part of Rodrigues, Juliana Mourão Dos Santos, Nery, Leticia, Rodrigues, Higor D. D. & Moreira, Felipe Ferraz Figueiredo, 2021, Survey of the semiaquatic bugs (Hemiptera: Heteroptera: Gerromorpha) from Alagoas and Sergipe, Northeast Brazil, pp. 103-159 in Zootaxa 4958 (1) on pages 147-148, DOI: 10.11646/zootaxa.4958.1.9, http://zenodo.org/record/469324
Paravelia biae Spangler 1989
No full textParavelia biae Spangler, 1989 Paravelia biae Spangler, 1989: 360-365, figs. 1-8, 15-16. Holotype: Macropterous ♂, glued to pinned paper with genitalia in microvial; Brazil, Pará, Rio Xingu camp (52°22′W, 03°39′S) Altamira (ca. 60 km s), 10.Oct.1986, P. Spangler & O. Flint col. Paratypes: 6 macropterous ♂, 7 macropterous ♀ (1♀ indicated as allotype), glued to pinned paper; same data as holotype.Published as part of Carrenho, Renan, Rodrigues, Higor D. D., Lima, Adriana Carneiro de & Schwertner, Cristiano F., 2020, Type specimens of true bugs (Hemiptera: Heteroptera) housed in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 1-16 in Papéis Avulsos de Zoologia 60 on page 7, DOI: 10.11606/1807-0205/2020.60.17, http://zenodo.org/record/461488
Oiovelia spumicola Spangler 1986
No full textOiovelia spumicola Spangler, 1986 (Figs 32–34, 44–46) Oiovelia spumicola Spangler, 1986: 438 (original description). Oiovelia spumicola: MAZZUCCONI & BACHMANN (1997b): 68 (notes on immature stages). Type locality. Venezuela, Amazonas, Cerro de la Neblina. Type material examined. PARATYPES: VENEZUELA: TERRITÓRIO FEDERAL AMAZONAS: 1 ♂ 1 ♀ (apt) (INPA), 1 ♀ (apt) (MZSP), Cerro de la Neblina, 1450 m a.s.l., 00º52 ' N / 65º58 ' W, 25–28.ii.1985, P.J. Spangler, P.M. Spangler & R.A. Faitoute coll. Dimensions. Apterous male (n = 1; mm). BL 3.10; HL 0.50; HW 0.60; ANT I 0.62, ANT II 0.33, ANT III 0.27, ANT IV 0.40; EYE 0.12; PL 0.97; PW 1.05; FORE LEG: FEM 0.85, TIB 0.83, TAR I 0.06, TAR II 0.06, TAR III 0.35; MID LEG: FEM 0.92, TIB 0.97, TAR I 0.06, TAR II 0.10, TAR III 0.40; HIND LEG: FEM 1.15, TIB 1.30, TAR I 0.07, TAR II 0.10, TAR III 0.40. Apterous female (n = 1; mm). BL 3.55; HL 0.55; HW 0.62; ANT I 0.60, ANT II 0.30, ANT III 0.26, ANT IV 0.43; EYE 0.13; PL 0.97; PW 1.05; FORE LEG: FEM 0.92, TIB 0.83, TAR I 0.06, TAR II 0.06, TAR III 0.37; MID LEG: FEM 1.05, TIB 1.06, TAR I 0.09, TAR II 0.11, TAR III 0.38; HIND LEG: FEM 1.22, TIB 1.32, TAR I 0.07, TAR II 0.15, TAR III 0.41. Diagnostic characters. This species is easily identified and differentiated from all other species by the yellowish general color of the body and appendages (Figs 32–34). Also, the male has dark central areas on sternites V–VI (Fig. 34), proctiger with a small acute process on the dorsal surface, and paramere broad at base, tapering to apex, which is hook-shaped (Fig. 46). Differential diagnosis. The apterous and macropterous forms are known in both sexes. However, it was not possible to examine macropterous specimens in this study. SPANGLER (1986) mentions that their form is similar to apterous specimens, differing from the last mainly in dark brown color of the dorsal surface of head, sides of thorax and abdominal sternites. In addition, the pronotum is reddish brown in anterior third and the fore wings are dark brown, with a basal creamy yellow area. Distribution and habitat. Venezuela (SPANGLER 1986). This species is known only from the type locality, Tepui Cerro de la Neblina, on the border of Venezuela and Brazil. It may possibly be an endemic species of this geographical region. All specimens were collected on foam masses formed in black water streams above 1450 m a.s.l. (SPANGLER 1986).Published as part of Rodrigues, Higor D. D., Melo, Alan Lane De & Ferreira-Keppler, Ruth L., 2014, Taxonomic revision of the Neotropical genus Oiovelia (Hemiptera: Heteroptera: Veliidae), pp. 65-98 in Acta Entomologica Musei Nationalis Pragae (suppl.) (suppl.) 54 (1) on pages 81-84, DOI: 10.5281/zenodo.446823
Laccodytes androginus Toledo, Spangler & Balke, 2010, sp.n.
No full textLaccodytes androginus sp.n. Figs (37, 53, 62) Type locality. Venezuela: Amazonas, 40 km S Puerto Ayacucho, Tobogán de la Selva. Type material. Holotype 3 (USNM): Venezuela: Amazonas, Puerto Ayacucho, 40 km S at Tobogán, 14.XI. 1987, coll. n. # 1, P.J. Spangler & R. Faitoute. Diagnosis. Habitus (Fig. 37). Body length 1.6 mm. Short and broadly oval, somewhat convex; tip of elytron narrowly rounded. Hind angle of pronotum rounded. Angle between pronotum and elytra missing. Color. head and elytra dark brown, pronotum slightly paler, with a darker line along hind margin of pronotum. Each elytron with three diffuse, paler spots: two basal, almost circular, and one subapical, larger and less regular (Fig. 37). Appendages of body reddish-brown. Venter reddish-brown, sternites slightly paler. Sculpture. MR impressed on both elytra and metacoxae; small and fine dots are visible between the meshes, slightly denser on metaventrite. A series of transverse shallow grooves is visible at about the anterior fourth of metacoxal plates. Structures. Pronotum with narrow lateral bead; posterior angle rounded. Prosternum and prosternal process with sharp ridge; prosternal process with a somewhat short, acute tip, not going beyond mesocoxae. Epipleuron broad up to level of sternite 7. Fore and middle legs very long and slender. Metatibial spurs conical and acuminate at tip. Metatarsomeres 1–4 with apico-lateral angle distinctly lobed. Hind lobes of metacoxal process rather straight, with a small V-shaped medial notch. Male. Pro- and mesotarsi not dilated, with hardly visible adhesive setae. Sternite 7 slightly concave on both sides, with a deep V-shaped emargination on hind margin, similar to that of the female of L. neblinae (Fig. 59) but the apical emargination is a little more widely spread. Aedeagus (Fig. 53): median lobe slender and elongate in lateral view, with apex gradually curved downward; on dorsal view flat, slightly narrowed on apical third. Parameres as in Fig. 53 c, d. Female. Unknown. Distribution (Fig. 62). Southern Venezuela. Biology. Collected from leaf packs in running water. Derivatio nominis. From the male resemblance with a female Laccodytes.Published as part of Toledo, Mario, Spangler, Paul J. & Balke, Michael, 2010, Taxonomic revision of the Neotropical diving beetles genus Laccodytes Régimbart, 1895 (Coleoptera: Dytiscidae), pp. 37-58 in Zootaxa 2347 on pages 54-55, DOI: 10.5281/zenodo.19340
Tepuidessus breweri Spangler 1981
No full textTepuidessus breweri Spangler, 1981 Type locality. Roraima Tepui, 2,800 m, around 5.162N 60.764W, Venezuela. Remarks: The altitude of the plateau is only around 2,300 m according to GoogleEarth. Material studied. 3 exs, "Venezuela - Guyana Mt. Roraima rainwater pools on Tepui summit Dec. 1998 D. Bilton leg." (CLH, ZSM); 10 exs, " Venezuela (Bolivar) Gran Sabana, Mt. Roraima, 2500 m, 11.8.2001, Gottwald leg./Coll. Hendrich" (CLH, ZSM). Diagnosis. Length of beetle 1.6–1.8 mm, width 0.7 mm (2 mm / 0.84 mm according to the original description, which might be incorrect; we used a calibrated ocular micrometre for our measurement). Habitus appearing long oval (Figs 1, 2), with only slight discontinuity between pronotum and elytra. Pronotum broadest near posterior angles; basal pronotal striae absent (at most with shallow depressions instead; see Spangler 1981, Biström 1988 and Miller & Bergsten 2016). Elytra broadest in anterior third; basal elytral striae absent. Apical abdominal ventrite strongly bordered. Habitat. The species was suggested to be hygropetric, with specimens collected from underneath of mats of wet moss (Spangler 1981; Miller & Bergsten 2016), however, they were later also observed in rainwater puddles (D.T. Bilton pers. communication, S. Gottwald pers. communication) (Fig. 9).Published as part of Kodada, Jan, Hendrich, Lars & Balke, Michael, 2018, Tepuidessus grulai sp. nov. from Acopán Tepui in Venezuela (Coleoptera: Dytiscidae: Hydroporinae: Bidessini), pp. 561-572 in Zootaxa 4434 (3) on pages 562-563, DOI: 10.11646/zootaxa.4434.3.10, http://zenodo.org/record/129224
Broadband control of structural vibration using simultaneous sensing and actuation with nonlinear piezoelectric currents
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1994.Includes bibliographical references (p. 207-217).by Ronald L. Spangler, Jr.Ph.D
Tropisternus Spangler & Short, 2008, sp. n.
No full text<i>Tropisternus</i> (<i>s. str.</i>) <i>richmondi</i>, Spangler & Short sp. n. <p> <b>Type material: Holotype</b> (male): “Exuma Cays/ Bells Island/ Jan. 14, 1953 ”, “Van Voast–A.M.N.H./ Bahamas Isls. Exped./ Coll. E. B. Hayden & L. Giovannoli” (AMNH). <b>Paratypes (9):</b> BAHAMA ISLANDS: Same data as holotype, 2 males, 3 females (AMNH, NMNH, KSEM); Simm's Long Island, vii.1963, 1 female (MCZ). CUBA: Soledad, Cienfuegos, (22-24). xi.1926, grassy pond, P.J. Darlington, 3 females (MCZ, KSEM).</p> <p> <b>Diagnosis:</b> This species resembles <i>T. setiger</i> (Germar, 1824) sensu d’Orchymont, but <i>T. richmondi</i> may be distinguished by the following characters: pronotal margin wider; posterolateral angles of pronotum acute and produced posteriorly; epipleura impunctate on basal portion; metafemur more robust and arcuate.</p> <p> <b>Description:</b> Male body length 9.5 mm; greatest body width 5.0 mm. Female body length 8.8 mm; greatest body width 4.2 mm. <b>Color:</b> Dorsal surface of head, pronotum, and elytra black. Labrum dark reddish brown. Basal 6 antennal segments testaceous, remainder dark reddish brown. Labial and maxillary palpi testaceous but apices dark reddish brown. Ventral surface black except inflexed portion of pronotum, epipleura, legs distad of basal pubescent area, and sternal keel reddish brown. <b>Male: Head:</b> Finely, densely punctate except an interocular series of 7 or 8 coarse, setigerous punctures and an anterolateral series of 12 to 15 coarse, setigerous punctures. Labrum finely, sparsely punctate. Last segment of maxillary palpus with sensory region extending from apex a distance one-third as long as segment. Mentum moderately, coarsely punctate. <b>Thorax:</b> Pronotum sinuate laterally, feebly bisinuate basally; posterolateral angles acute, produced posteriorly; finely, sparsely punctate; punctures separated by about twice their width; mediolateral series of 7 or 8 coarse, setigerous punctures; and anterolateral series of 5 or 6 coarse, setigerous punctures coalesced into a single setigerous pit. Elytron finely, sparsely punctate similarly to pronotum but punctures less deeply impressed, larger punctures intermingled and uniformly distributed over elytron; with 4 series of coarse, setigerous punctures; epipleuron impunctate basally, distinctly punctate apically; apex obtuse. Sternal keel attaining middle of second abdominal ventrite. Mesoventral portion of keel moderately wide, widest in basal three-fourths, feebly convex; with coarse, irregularly placed, setigerous punctures. Metaventral portion of keel with very few, fine, aciculate, setigerous punctures; canaliculate medially; tapering to a needlelike spine. Metafemur broad, convex, arcuate; with 8 coarse, setigerous punctures apically; pubescent area triangular, extending from apex of trochanter anteriorly a distance twice as long as trochanter. Metatibia almost parallel sided in apical half, subcylindrical; with fringed groove on upper surface. Inner mesotarsal and metatarsal claws each with a moderate tooth arising submedially. <b>Abdomen:</b> Apical margin of fifth ventrite with feeble median carina with small tuft of golden hairs at apex. Aedeagus as illustrated (Fig. 2). <b>Female:</b> Similar to male except mentum less coarsely and less densely punctate; mesotarsal and metatarsal claws without teeth; mesoventral portion of sternal keel with coarse punctures apically.</p> <p> <b>Variation:</b> The specimens examined varied very little. However, a minor variation occurred in the length of the sternal keel. In several of the 10 specimens examined, the metaventral spine just attained the hind edge of the first abdominal ventrite; in other specimens, the spine extended to the middle of the second abdominal ventrite. The specimens vary in length and width from 9.0 mm x 5.0 mm to 10.75 x 6.0 mm.</p> <p> <b>Etymology:</b> A patronym, named for the late E. A. Richmond, whose pioneer work on the hydrophilid larvae contributed extensively to our knowledge of the biology of theses insects.</p> <p> <b>Bionomics:</b> No ecological information is available for this species.</p> <p> <b>Distribution:</b> This species is known only from the Bahama Islands and Cuba. The locality data indicate that this species occurs in lowland coastal habitats. Only the specimens included in the type material have been examined.</p>Published as part of <i>Spangler, Paul J. & Short, Andrew Edward Z., 2008, Three new species of Neotropical Tropisternus Solier (Coleoptera: Hydrophilidae), pp. 65-68 in Zootaxa 1917</i> on page 67, DOI: <a href="http://zenodo.org/record/184624">10.5281/zenodo.184624</a>
HEPL Covid-19 in Sweden
No full textSupplementary data and analysis files for the article "Soft law and individual responsibility: A review of the Swedish Policy Response to Covid-19" by Ulrika Winblad, Douglas Spangler, and Anna-Karin Swenning
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Anticura Spangler 1979
No full text<i>Anticura</i> Spangler, 1979 <p> <b>Diagnosis of the Larva.</b> Table 2. Clypeolabrum (Fig. 3C) nearly symmetrical; nasale with two teeth in all instars; epistomal lobes reaching about as far as nasale; coronal line present but very short. Head capsule of all instars (Figs. 3, 6) with numerous trichoid additional setae especially on dorsolateral portions of parietale. Mandibles (Figs. 4C–D, 7C–D) with two inner teeth each, all instars without serrate areas on base of inner teeth. Antennal sensorium small (<i>e.g</i>., Fig. 4A). Inner face of stipes with many stout spines with subapical minute tooth each (Figs. 4E, 5C, 7E), indistinctly increasing in size towards distal portion; outer face of stipes of second and third instars with numerous stout secondary setae; maxillary palpomere 3 long (Fig. 4E). Labium (Figs. 4G–H, 7G–H) moderately sized, lacking hypopharyngeal lobe; ligula present, well-sclerotized; mentum of third instar with very many stout setae dorsolaterally and distally; prosternum not subdivided mesally. Legs (Fig. 8C) with setose ventral portion of trochanter. Abdomen (Fig. 2B–C) with dorsal and lateral tubercles blunt at apex. Dorsal sclerite of abdominal segment 8 (Fig. 8D) complete, but pigmented to appear subdivided mesally (Fig. 2B).</p> <p> The larva of <i>Anticura</i> generally resembles aquatic medium-sized larvae of the tribe Hydrobiusini, but differs from them easily by the bidentate nasale (unique within Hydrophilidae, similar state only present in first instar of <i>Cylomissus</i>, see below) (Figs. 3C, 6C), mandible with two inner teeth (a third minute inner tooth is present basally in all known larvae of Hydrobiusini) (Fig. 4C–D), and inner face of stipes with numerous stout sensilla (gMX2) (with five setae (MX 7–11) in all Hydrobiusini) (Fig. 4E). By the above characters, <i>Anticura</i> also differs from larvae of all other hydrophilid genera occurring in Chile and Argentina, including <i>Cylorygmus</i> Orchymont, which is the only other rygmodine genus with aquatic larvae occurring in southern South America.</p>Published as part of <i>Minoshima, Yûsuke N., Fikáček, Martin, Gunter, Nicole & Leschen, Richard A. B., 2015, Larval Morphology and Biology of the New Zealand-Chilean Genera Cylomissus Broun and Anticura Spangler (Coleoptera: Hydrophilidae: Rygmodinae), pp. 687-712 in The Coleopterists Bulletin 69 (4)</i> on pages 690-691, DOI: 10.1649/0010-065x-69.4.687, <a href="http://zenodo.org/record/10106326">http://zenodo.org/record/10106326</a>
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