201,567 research outputs found

    M. Lozada & C. Varela (eds.), Il Centenario de Don Antonio de Ulloa. P.e. Pérez-Mallaína (ed. y estudio), Antonio de Ulloa, La campaña de las terceras

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    Bertrand Michel. M. Lozada & C. Varela (eds.), Il Centenario de Don Antonio de Ulloa. P.e. Pérez-Mallaína (ed. y estudio), Antonio de Ulloa, La campaña de las terceras. In: Caravelle, n°72, 1999. Héros et nation en Amérique latine. pp. 227-230

    Heisteria austroecuadorica Cornejo, Homeier & C. Ulloa. A, Inflorescence 2023, sp. nov.

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    Heisteria austroecuadorica Cornejo, Homeier & C. Ulloa sp. nov. (Fig. 1). Diagnosis: — Species nova affinis Heisteria asplundii, a qua folia angusta, stamina decandra, calycem fructuum basin non occultans differt. Type: — ECUADOR. Zamora Chinchipe: area of the Reserva San Francisco, 3°58’S 79°04’W, 1980 m, 6 September 2005 (fl, fr), J. Homeier & S. Hänel 1609 (holotype: GUAY!; isotypes: GOET!, LOJA!, QCNE-195572!). Description: — Tree, to 20 m tall and 30 cm DBH; milky white latex present in stems and branches; branches ca. 2 mm thick, terete, striate, glabrous. Leaves alternate; petiole 7–16 mm long, rugose, light- to dark-brown, channeled above, glabrous; lamina chartaceous, (4.5–)7–19 × 2–6 cm, elliptic-lanceolate to narrowly elliptic or narrowly lanceolate, apex acuminate to long-caudate, drip-tip 7–12 mm long, base cuneate, margins revolute, dull, smooth, and glabrous on both sides, venation brochidodromous, midrib slightly sulcate above, prominent below, secondary nerves 6 to 9 pairs, prominulous, tertiary venation inconspicuous. Inflorescence ramiflorous, a short axillary fascicle, 3 to 15 flowers per fascicle; bracts cucullate-deltoid, 0.5–1 × 0.5–1 mm, the apex obtuse to broadly obtuse; pedicel 5–7 mm long. Calyx patelliform or cup-shaped, 5-lobed, lobes ca. 0.5 mm long, triangular to broadly triangular, acute at apex, green. Petals 5, ca. 3 × 1 mm, free, densely papillose or shortly pilose on the adaxial side, greenish-white. Stamens 10, filaments ligulate, ca. 2 × 0.3 mm, the 5 inner ones ca. 1.8 mm, all free, anthers ca. 0.5 × 0.8 mm. Nectary absent; ovary oblatesubglobose (in vivo), pyriform (in sicco); style ca. 0.5 mm, stigma slightly 3-lobed. Fruiting pedicel 1.5–2.3 cm long, slightly swollen, 2–3 mm distally. Fruiting calyx slightly 5-lobed, 2.2–2.8 cm in diam., reflexed, stiffly chartaceous, orange to red, bright and shiny above, dull below. Drupe barrel-shape, olive green with maroon at apex (in vivo), 1.2–2 × 1–1.2 cm, rugulose, faintly ribbed longitudinally and tuberculate (from endocarp, in sicco), with a clear, deep, circular depression at the apex. Etymology: —The epithet refers to the geographic pattern of distribution at southeastern Ecuador where the species occurs. Habitat and distribution: — Heisteria austroecuadorica is known from the San Francisco reserve, a forest remnant close to the settlement of El Líbano north of the Podocarpus National Park, and the Jamboe river basin in southeastern Ecuador, between 1000 to 2050 masl; all three localities are on the Loja-Zamora road. The area is characterized by a rugged terrain and small-scale structural and floristic vegetation changes, which result mainly from the decreasing soil fertility along ravine-slope-ridge gradients (Werner & Homeier 2015). The newly described species is restricted to the ravines and lower slope positions with more fertile soils within the species-rich evergreen lower montane forests below 2050 masl, that reach up to 30 m height (Homeier et al. 2008, 2010). In the ravines and on the lower slopes of this specific forest type, Heisteria austroecuadorica is accompanied by several tree species that have been described from this zone in the last years, stressing the biological importance of this area. Some examples are: Byrsonima homeieri Anderson (2007: 97), Critoniopsis zamorensis Haro-Carrión & Robinson (2008: 17), Meliosma longepedicellata Cornejo (2009: 93), Magnolia zamorana Arroyo et al. (2013: 507), Meriania franciscana Ulloa Ulloa & Homeier (2008: 383), Naucleopsis francisci Berg & Homeier (2010: 197), Ocotea homeieri van der Werff (2020: 210) and Quiina zamorensis Schneider & Zizka (2012: 265). All of these aforementioned species have a narrow pattern of distribution that is restricted to the particularly diverse Amotape-Huancabamba zone (Weigend 2002, 2004), south of the Girón-Paute dry valley in southern Ecuador (Jørgensen et al. 1999). With its relatively high-density wood (0.72 g /cm 3), large fruits and slow diameter growth rates, Heisteria austroecuadorica combines characteristics typical of a late successional tree species. Phenology: —Flowering was observed in June, September, October and December; fruiting material was collected in April, September and October. There are no existing observations on flower pollination or fruit dispersal. Conservation status: —This species is uncommon in the Reserva San Francisco: Homeier has only found a total of six trees (out of almost 4000) within three recently established one-hectare plots. At a second location, outside the Reserve, in El Líbano, only one tree has been seen. A third locality is represented by one collection only in the Jamboe river basin just further down at slightly lower elevation. Based on the very small area of occurrence (12 km 2), an extent of occurrence of 10.3 km 2, the existence of only three localities, only one of which is protected within the private Reserva San Francisco, we assign a provisional category of Endangered (EN B2a(iv)), following the IUCN (2022) criteria. Paratypes: — Ecuador: Zamora Chinchipe: Reserva San Francisco, road Loja-Zamora, ca. 30 km from Loja, 3°58’S 79°04’W, 1800–2050 m, June 2005 (fl.), O. Cabrera & N. León 869 (HUTPL, fragm. in GUAY); same location, 1840 m, 20 October 2001 (fr.), J. Homeier 1025 (LOJA, QCNE, MO, GOET); same location, 1910 m, 11 September 2003 (sterile), J. Homeier & W. Quizhpe 1261 (GOET, MO, QCNE); same location, 1910 m, 20 October 2013 (fl.), J. Homeier 5098 (HUTPL, QCA, GOET); same location, 2040 m, 5 December 2016 (fl.), J. Homeier & J. Peña 5820 (HUTPL, QCA, GOET). Road Loja-Zamora, El Líbano, 4°5’S 78°59’W, 1720 m, April 2011 (fr.), J. Homeier, F.A. Werner & D. Cárate 4713 (LOJA, QCA, QCNE, GOET). Cuenca del río Jamboe, 4°08’S 78°56’W, 1000 m, September 1999 (fl, fr), W. Palacios 14881 (MO). Discussion: —The fruits of Heisteria austroecuadorica are characterized by the apex presenting a circular depression, a key character in Sleumer’s treatment (1984) that is only found in three other species in tropical America: H. amphoricarpa Sleumer (1984: 49), H. asplundii, and H. skutchii Sleumer (1984: 50). Heisteria amphoricarpa, a Brazilian species, has a unique urn-shaped calyx enveloping most of the drupe and flowers with five stamens, while H. skutchii, a Costa Rican species with 10 stamens, has much wider, patent fruiting calyx (over 30 mm diameter). In Ecuador, the fruits of Heisteria austroecuadorica are relatively large with a depressed apex like those of H. asplundii, a tree endemic to northwestern Ecuador. However, H. austroecuadorica immediately differs from H. asplundii by its narrower leaves, with blades elliptic-lanceolate to narrowly elliptic or narrowly lanceolate, 2–6 cm wide (versus leaves always with broadly elliptic blades, 10–15 cm wide in H. asplundii), the flowers with 10 stamens (vs. 5 stamens), the smaller fruiting calyx, up to 2.8 cm and covering just the base of the drupe (vs. up to 4.8 cm and covering the basal 1/3 of the drupe); additionally, these two species are widely separated on opposite sides of the Andes mountains.Published as part of Cornejo, Xavier, Homeier, Jürgen & Ulloa, Carmen Ulloa, 2023, Heisteria austroecuadorica (Erythropalaceae): A new species from southeastern Ecuador, pp. 201-206 in Phytotaxa 599 (3) on pages 202-204, DOI: 10.11646/phytotaxa.599.3.7, http://zenodo.org/record/801261

    M. Lozada & C. Varela (eds.), Il Centenario de Don Antonio de Ulloa. P.e. Pérez-Mallaína (ed. y estudio), Antonio de Ulloa, La campaña de las terceras

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    Bertrand Michel. M. Lozada & C. Varela (eds.), Il Centenario de Don Antonio de Ulloa. P.e. Pérez-Mallaína (ed. y estudio), Antonio de Ulloa, La campaña de las terceras. In: Caravelle, n°72, 1999. Héros et nation en Amérique latine. pp. 227-230

    Brachyotum sertulatum, una especie nueva de Melastomataceae de Colombia

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    A new species of Melastomataceae, Brachyotum sertulatum C. Ulloa, from southern Colombia is described and illustrated. It is characterized by a conspicuous single row of large tubercles sub-marginal on the leaf blade above. It is endemic to the Páramo de las Papas in the Colombian massif (Macizo Colombiano), between the departments of Cauca and Huila at around 3400 m. Due to the restricted distribution and small population it is assigned the category of Endangered (EN).Se describe e ilustra Brachyotum sertulatum C. Ulloa, una especie nueva de Melastomataceae del sur de Colombia. Se caracteriza por una sola hilera de conspicuos tubérculos submarginales en el haz de las hojas. Es una especie endémica del Páramo de las Papas en el Macizo Colombiano, entre los departamentos de Cauca y Huila a unos 3400 m. Debido a su distribución restringida y a los escasos ejemplares conocidos se la incluye en la categoría de En Peligro (EN)

    ABC del periodismo / M. Gorz, P. Ulloa.

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    Introducción al oficio de periodista que incluye nociones y elementos críticos sobre el oficio, los géneros, la formación disciplinada, las tendencias y principales prejuicios en la elaboración de noticias y la relación entre cultura y periodismo

    Diseño de un proyecto de gestión integrada al proceso de toma de muestra de Grupo Químico Marcos para la determinación de cloro residual In Situ en agua natural, residual y potable.

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    Este documento contiene archivo en PDF.El estudio se realizó en el laboratorio ambiental privado GRUPO QUÍMICO MARCOS C. LTDA. con el objetivo de diseñar una propuesta de gestión integrada al proceso de toma de muestra para la determinación de cloro residual in situ, de forma tal que permita incrementar la eficacia del sistema de gestión de calidad acreditado mejorando la gestión de sus procesos para asegurar la satisfacción de sus clientes. Para realizar esta investigación, se desarrollóun sistema progresivo de etapas que inicia desde la recopilación bibliográfica, realización de entrevistas para la obtención de datos a analizar en el ámbito de calidad; hasta el empleo de matrices para la identificación de aspectos e impactos ambientales y evaluación de riesgos en el proceso de toma de muestras de la empresa. Con los resultados obtenidos se realizó un plan de implementación gradual del Sistema Integrado de gestión según los requisitos que marca de las normas ISO 9001:2008, ISO 17025:2005, ISO 14001:2004 y OHSAS 18001:2007 a las características particulares de la organización considerando que es un laboratorio en crecimiento que necesita alternativas y soluciones adaptadas al giro del negocio que beneficien a la empresa, clientes internos, clientes externos y al medio ambiente.The study realized in the private environmental laboratory named GRUPO QUIMICO MARCOS C. LTDA. as the purpose of design an integrated management to the sampling process for the analysis of residual chlorine in situ, to increase the effectiveness of the accredited quality system improving process management to ensure the satisfaction of the customer. For this research a progressive system of steps was developed, it started from the bibliography, interviews for obtaining data to be analyzed in the field of quality; includes the use of tools and techniques for environmental aspects/impacts assessment and risk assessment in the sampling process of the company. With the results obtained, an implementation of the Integrated Management System Plan was suggested according to the requirements established in the ISO 9001: 2008, ISO 17025: 2005, ISO 14001: 2004 and OHSAS 18001: 2007 to consider the specification of the growing laboratory which needs alternatives and solutions adapted to the business that benefits the company, internal customers, external customers and environment

    Stability and dynamical effects of water on deck on the survivability of small fishing vessels

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    Starting from the analysis of casualties at sea involving small fishing vessels (Lbp<24 m), the paper presents the results of an experimental study on the capsizing resistance in beam or following steep or high waves of scale models in the towing tank of University of Trieste. The physical mechanisms leading to capsizing are highlighted and the experimental result are compared with existing theoretical approaches. The results stress the importance of deck wetness and of the presence of fishing nets as wave trappers on the probability of capsizing. The importance of complying with the existing regulations for dimensioning the freeing ports, although only voluntary, appears also an element of paramount importance

    The Career of Alfonso Ulloa (1529–1570) in Early Modern Venice

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    This chapter re-evaluates the artifacts and translations associated with a Spanish intermediary, Alfonso de Ulloa (1529–1570), who lived in an age of Christian-Muslim relations and had a deep impact on the Venetian press’s policies of inclusion/exclusion and on the city’s self-fashioning as a capital of the book industry. Moving among envoys and Inquisition officers, Ulloa is a great case study of the brokering of citizenship in a multi-ethnic urban environment and of the bricolage of Iberian memory and ideology as well. By placing an agent against urban practices, one can narrow a divide between the historiography on mobility, journeymen-printers, and commercial connectors; by focusing on a multipolar figure such as Ulloa, moreover, one can also generate a new appreciation for the palimpsestic nature of the imperial philologies he was variously associated with

    El partido liberal del Cauca

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    Impreso que reproduce la correspondencia entre el presidente del Directorio liberal del Cauca, Jeremías Cárdenas, y el Secretario de gobierno local, Juan de Dios Ulloa. En el documento, Cárdenas comunica a Ulloa que fue elegido como presidente del directorio y se compromete a mantener la paz en la región
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