169,970 research outputs found
Agroeca istia de Biurrun & Barrientos 2021, sp. n.
No full text<i>Agroeca istia</i> de Biurrun & Barrientos sp. n. <p>Figs 2–4</p> <p>urn:lsid:zoobank.org:act: 8F165F62-2C37-4549-947F-901D3461B77F</p> <p> <b>Type material.</b> Holotype <b>Ƌ (</b> MZNA 716538), pitfall trap in pine forest, 3.III.2014. Allotype <b>♀</b> (MZNA 716544), direct capture in pine forest, 18.III.2014.</p> <p> Paratypes: 8 <b>♀</b>, 11 <b>Ƌ</b>, 1 immature (28.X.2013 – 29.X.2014), all from Vedado de Eguaras, Bardenas Reales, Navarra, Spain (42.25°N, 01.52°W).</p> <p> <b>Etymology.</b> The species name <i>istia</i>, feminine, is derived from the ancient Greek term “ <b>ἱστία</b> ”, for the noun ‘sail’, and it also applies to the Vela constellation. It refers here to the flat triangular keel protruding in the middle of the embolic base of the male pedipalp, resembling the triangular sail of a ship (TK in Fig. 2A).</p> <p> <b>Diagnosis.</b> Males are distinguished by the presence of a triangular keel (TK in Figs 2 A–B, 3C) at the base of embolus, clearly seen in the ventral view, widely spaced between a prolateral bulge (PB in Figs 2 A–B, 3A, C) and the terminal plate from which the embolus emerges (EP in Figs 2A, E, 3C). The tibial apophysis (Figs 2 A–C, E) is long and thin, and it does not appear truncated in lateral view (Fig. 2E). The female can be distinguished by the profile of the copulatory ducts, showing an inverted U shape (Figs 2I, K, 3B).</p> <p> <b>Description.</b> Description. Male (Fig. 2H): total length 4.03 (3.34–4.43); prosoma 1.78 long (1.64–1.97), 1.40 wide (1.34–1.53). Female (Fig. 2G): total length 4.72 (4.49–4.99); prosoma 2.06 long (1.64–2.16), 1.56 wide (1.36– 1.85). Leg measurements are shown in Table 1. Leg spination of holotype is depicted in Fig. 4. Colour: carapace in both sexes with yellowish median stripe, rest of carapace dark brown with faint radiating stripes. Fovea conspicuous. Abdomen reddish-brown, with vague chevron-like pattern, more evident in females. Legs yellowish.</p> <p>Palp (Figs 2 A–F, 3A, C): RTA long, slightly curved in proximal half; twice as broad at base, pointed at tip (Figs 2C, E). Cymbium with apical scopula (CS in Figs 2D, F). Base of embolus consists of three differentiated parts: a prolateral bulge (PB in Figs 2 A–F, 3A, C) divided by distinct furrow, a flat triangular keel (TK in Figs 2 A–B, 3C), and a retrolateral non-forked plate from which proximal portion of embolus emerges towards cymbium (EP in Figs 2A, E, F, 3C). Embolus takes anti-clockwise turn dorsally into cymbium and, in unexpanded palp, emerges again near prolateral bulge. Membranous conductor whitish, curved and tubular (Figs 2 A–F, 3C), arises behind prolateral bulge, runs parallel to distal tip of embolus (ED in Figs 2B, E, F, 3C), ending both ventrally to triangular keel. Median apophysis with protruding retrolateral lobe, base forming semi-circular pointed hook directed towards base of tegulum.</p> <p>Epigyne (Fig. 2I, 3B): often covered anteriorly by strong, dark plugs, densely covered by thick plumose hairs (Fig. 2J). Almost circular, posteriorly reaching epigastric furrow. Although barely noticeable as part of epigyne due to less pronounced sclerotization, there are two ear-shaped lateral shallow depressions (ESD in Fig. 2I) ending posteriorly on semi-circular hoods of copulatory openings (Ho and CO in Fig. 2K). Median septum shows flanks appearing flat and wing-like anteriorly (Figs 2I, K, MS in Fig. 3B). Visible first half of copulatory duct forms inverted U-shape (Fig. 2I).</p> <p>Vulva (Figs 2 K–L): after long course forming inverted U-shape from copulatory openings, copulation ducts, not touching medially (Fig. 2K), run briefly dorsally, loop in semicircle, before ending in small kidney-shaped spermathecae (Fig. 2L).</p> <p> <b>Distribution.</b> Only known from the type locality.</p> <p> <b>Habitat.</b> Aleppo pine forest (<i>Pinus halepensis</i>) and immediate surroundings, within typical salt marshes of the Bardenas area.</p>Published as part of <i>Biurrun, Gabriel De, Barrientos, José Antonio & Baquero, Enrique, 2021, A new species of Agroeca Westring, 1861 from Navarra, Spain (Araneae Liocranidae), pp. 84-90 in Zootaxa 4941 (1)</i> on pages 86-87, DOI: 10.11646/zootaxa.4941.1.4, <a href="http://zenodo.org/record/4594746">http://zenodo.org/record/4594746</a>
FIGURE 1 in A new species of Agroeca Westring, 1861 from Navarra, Spain (Araneae Liocranidae)
No full textFIGURE 1. Location map: A The Iberian Peninsula; B Navarra; C Vedado de Eguaras. Scale bars: A 1000 km, B 100 km, C 5 km.Published as part of Biurrun, Gabriel De, Barrientos, José Antonio & Baquero, Enrique, 2021, A new species of Agroeca Westring, 1861 from Navarra, Spain (Araneae Liocranidae), pp. 84-90 in Zootaxa 4941 (1) on page 85, DOI: 10.11646/zootaxa.4941.1.4, http://zenodo.org/record/459474
Geología de la quebrada del río Cañas, provincia de Salta, Argentina
No full textEl reconocimiento y la interpretación de la geología de la región de Isla de Cañas, provincia de Salta, ubicada en el sector occidental de la Provincia Geológica de las Sierras Subandinas es el marco de estudio del presente trabajo. Sobre la margen del río Astilleros se analizaron los afloramientos de sedimentos ubicados en un arroyo afluente, teniendo por objetivo el determinar su correspondencia con el relleno de la cuenca de rift del Grupo Salta, hipótesis propuesta en trabajos anteriores, o en su defecto determinar otras posibles alternativas de su origen. Estudios petrográficos y diagenéticos realizados en las muestras recolectadas en campo permitieron conocer sus características composicionales e identificar circones detríticos sobre los que se realizó un estudio de datación U-Pb. Los resultados del análisis sobre los depósitos estudiados permiten refutar la hipótesis sobre la edad cretácica de los mismos y proponer su reasignación a sedimentos de edad carbonífera, posiblemente pertenecientes a la Formación San Telmo, teniendo en cuenta el contexto estratigráfico local y tectónico general, así como también descartar la acción del rift Cretácico en la zona de estudio.Fil: Biurrun, María Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
FIGURE 3 in A new species of Agroeca Westring, 1861 from Navarra, Spain (Araneae Liocranidae)
No full textFIGURE 3. Agroeca istia sp. n.: A male palp, ventral view; B epigyne; C base of embolus of the expanded male palp in frontal view. Scale bars: 0.5 mm. Abbreviations: C—conductor; ED—distal part of embolus; EP—proximal part of embolus; Ho—hood over the copulatory opening; MS—median septum; PB—prolateral bulge; TK—triangular keel.Published as part of Biurrun, Gabriel De, Barrientos, José Antonio & Baquero, Enrique, 2021, A new species of Agroeca Westring, 1861 from Navarra, Spain (Araneae Liocranidae), pp. 84-90 in Zootaxa 4941 (1) on page 89, DOI: 10.11646/zootaxa.4941.1.4, http://zenodo.org/record/459474
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
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
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
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
Phylogenetic structure of European forest vegetation
No full textPadullés Cubino, J., Lososová, Z., Bonari, G., Agrillo, E., Attorre, F., Bergmeier, E., Biurrun, I., Campos, J.A., Čarni, A., Ćuk, M., De Sanctis, M., Indreica, A., Jiménez-Alfaro, B., Khanina, L., Knollová, I., Lenoir, J., Pielech, R., Rašomavičius, V., Škvorc, Ž., Svenning, J.-C., Vassilev, K., Willner, W., Chytrý, M
A 0.12mm<sup>2</sup> Wien-Bridge Temperature Sensor with 0.1°C (3σ) Inaccuracy from -40°C to 180°C
No full text Resistor-based temperature sensors can achieve much higher resolution and energy efficiency than conventional BJT-based sensors [1], but they typically occupy more area (> 0.25 mm 2 ) and have lower operating temperatures (le 125 {circ} {C}) [2]-[4]. This work describes a 0.12mm 2 resistor-based sensor that uses a Wien-bridge (WB) filter to achieve 0.1 {circ} {C} (3 sigma) inaccuracy from - 40 {circ} {C} to 180 {circ} {C}. Compared to a state-of-the-art WB sensor [4], it occupies 6 × less area and achieves comparable relative accuracy over a 76% wider operating range. Session 10.3 Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic InstrumentationMicroelectronic
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