13,217 research outputs found
Título: El amor cristiano enjugando las lágrimas de las benditas alms del purgatorio
No full textAntepA. f. de lám. antes da portA lám. é de grav. xil.: "R. Solá y Roca, edit. ...J. Nicolau s
CDMF Pesquisa - Román Alvarez Roca
No full text<p> </p>
<p>Román Alvarez Roca, pós-doutorando no Centro de Desenvolvimento de Materiais Funcionais (CDMF), fala de sua pesquisa sobre síntese e caracterização de materiais com ênfase no tungstato de prata.</p>
<p>CDMF Pesquisa - Román Alvarez Roca de <a href="https://youtu.be/wf-g8tfNiDk">https://youtu.be/wf-g8tfNiDk</a> está licenciado com uma Licença <a href="http://creativecommons.org/licenses/by-nc-nd/4.0/">Creative Commons - Atribuição-NãoComercial-SemDerivações 4.0 Internacional</a>. Podem estar disponíveis autorizações adicionais às concedidas no âmbito desta licença em <a href="https://www.labi.ufscar.br/">https://www.labi.ufscar.br/</a>.</p>
ROCA : un modelo de desarrollo. Proyectos 1991/1992
No full textLa ROCA (Réseau des Organisations Caféières Autogérées), qui rassemble, en mai 1991, 9 groupes de petits producteurs de café situés dans 3 localités de la zone de Xalapa-Coatepec (Mexique), et bénéficie de l'appui des techniciens du projet SARH/CIRAD et de la société d'Assistance Agronomique AAS, est basée sur une volonté d'action coordonnée dans les différents domaines qui font l'objet de ses 5 programmes : commercialisation, amélioration des usines de traitement, amélioration de la production, administration des exploitations, formation et communication. Ce document présente les succès de chaque programme, les priorités du réseau et, en annexes, les projets prévus dans le cadre des différents programme
Letter from Paul M. Roca on behalf of Carl Hayden to Ray E. Carr, Associated Civic Clubs of Southern Utah
No full textLetter from Paul M. Roca to Ray E. Carr on behalf of Carl Hayden politely declining his invitation
Dataset: Experimental carbon emissions from degraded Mediterranean seagrass (Posidonia oceanica) meadows under current and future summer temperatures.
No full textExperimental carbon emissions from degraded Mediterranean seagrass (Posidonia oceanica) meadows.
Guillem Roca, Javier Palacios, Sergio Ruíz-Halpern, Núria Marbà
Contact details: Guillem Roca, [email protected]
Issue date:
Identifier:
Citation: Roca, Guillem; Palacios, Javier; Ruíz-Halpern, Marbà, Núria;
Experimental carbon emissions from degraded Mediterranean seagrass (Posidonia oceanica) meadows. [Dataset]
Abstract: The dataset provides data on sediment C02 efflux rates (μmol CO2 m-2 s-1), carbon emissions during the experiment (gm-2), % Organic Carbon, Organic Matter content (g m-2) of the Posidonia oceanica seagrass sediments collected in Pollença bay (North of Mallorca Island). Sediments were cultivated in 5 different seawater temperature treatments and two different agitation conditions.
Keywords: C02 efflux rates, C02 emissions, Sediment, Seagrass, Posidonia Oceanica, experiment, temperature treatment, Sediment suspension Blue carbon, Organic Carbon.
Description: The dataset contains data on sediment C02 efflux rates, carbon emissions during the experiment (gm-2), % Organic Carbon, Organic Matter content of the Posidonia oceanica seagrass sediments collected in Pollença bay (North of Mallorca Island). Sediments were cultivated in 5 different seawater temperature treatments and two different agitation conditions. Sediments used in the experiment were extracted in October 2017 from the P. Oceanica meadow of Pollença in Mallorca Island at six-meter depth Figure (1). Sediments were sampled in October 2017 using sediment cores (9 cm ID and 30cm long) and directly transported to the laboratory. Only the top 10 cm of the sediment cores were used since this fraction is the most susceptible to erosion. Living seagrass tissues (roots, rhizomes, and leaves) were removed and sediment was mixed and homogenized. 40ml of sediments were poured into glass containers of 750ml with 500ml of seawater. Finally, each recipient contained a sediment layer of approximately 1.1cm in each container. Containers were placed at five different temperature baths (26,27.5, 29, 30.5, 32 ºC) simulating summer temperatures in the bay (Garcias-Bonet et al., 2019) at different agitation regimes (agitation/repose) to simulate exposed and sheltered conditions.10 containers were sampled right after the experiment started to provide initial sediment conditions. Five containers per temperature and agitation treatment were removed 7, 21, 43, 67, and 98 days from the experiment start, to analyse sediment organic matter and CaCO3 content. CO2 incubations were run 5, 14, 56, and 91 days from the experiment start. Sampling times were distributed considering that organic matter remineralisation was likely to follow an exponential trend, including a rapid phase of loss of the more labile material followed by a slower loss of more recalcitrant substrates (Arndt et al., 2013). The experiment was run in the dark to avoid photosynthesis in an isothermal chamber at 21ºC.
Organic Carbon analysis
In each sampling time, organic matter content in sediments (OM %DW) was estimated as the percentage weight loss of dry sediment sample after combustion at 550ºC for 4 hours. Organic carbon (Corg) was calculated from OM content using the relation described in (Mazarrasa et al., 2017b)
y = 0.29x – 0.64; (R2=0.98, p< 0.0001, n=60)
OM and POC stocks along the experiment (mg OM ml-1 and mg POC ml-1) were estimated by multiplying the OM and POC (%DW) by the sediment dry weight (mg) remaining in each experimental unit and standardized to the initial volume of sediment (40 ml) introduced in every glass container. Inorganic carbon was estimated as the percentage weight loss of already combusted sediment (550ºC) after combustion at 1000ºC.
Sediment CO2 production
Container headspace CO2 gas concentration was measured during 20 minutes continuum incubations (4 replicates) in each temperature and agitation treatment in all sampling times. CO2 air concentration measures were carried out using an Infra Red Gas Analyser EGM4 from PPSystems. Concentration of dissolved CO2 in seawater (in μmol CO2 L−1) was calculated from the concentration of CO2 (in ppm) measured in headspace air samples after equilibration as described in (Garcias-Bonet and Duarte, 2017; Wilson et al., 2012). Briefly, we calculate the dissolved CO2 remaining in seawater after equilibration with the air phase ([CO2]SW−eq) by,
[CO2]SW−eq = 10−6 β [C CO2]Air P
where β is the Bunsen solubility coefficient of CO2, calculated according to Wiesenburg and Guinasso (1979), as a function of seawater temperature and salinity; [CO2]Air is the CO2 concentration measured in containers headspace air (in ppm) and P is the atmospheric pressure (in atm) of dry air that was corrected by the effect of multiple sampling applying Boyle’s Law. Then, the initial CO2 concentration in seawater before the equilibrium ([CO2]SW−before eq) was calculated (in ml CO2 /ml H2O) by,
[CO2]SW−before eq = ([CH4]SW−eq VSw + 10−6 ([CO2]Air −[CO2]Air background) VAir)/VSW
Where VSw is the volume of seawater in the core or in the seawater closed circuit, [CO2]Air background is the atmospheric CO2 background level and VAir is the volume of the headspace or the closed air circuit. Finally, the initial CO2 concentration was transformed to µmol CH4 L−1 by applying the ideal gas law.
CO2 efflux values were calculated from CO2 variation per time unit. Then, we converted the rates to aerial (taking in account container surface) base, and thickness (in μmol m-2 s-1)
Pre-Columbian Treponematosis from Roca Vecchia (Lecce, Italy)
No full textA case of late medieval, absolutely dated pre-columbian syphilis from southern Italy (Roca Vecchia)
Perenotus malobae Roca-Cusachs & Goula, 2016, sp. nov.
No full textPerenotus malobae sp. nov. Roca-Cusachs & Goula 2016 Type locality. Canary Islands, La Palma, Garafia, Costa Juan Adalid. Material examined. Type material. [female] HOLOTYPE: Costa Juan Adalid / Garafia, La Palma / Canarias. 25 May 2014 / Roca-Cusachs leg./ cardonal-tabaibal dulce // Perenotus gen. nov. malobae sp. nov. / Roca-Cusachs & M. Goula det. 2016// MNCN _Ent 157856 [All females]: 1, ‘La Palma / Volcán Martín / VIII-86 / P. Oromí’ [white, handwritten label] / ‘PARATYPE / 1, Systellonotus stysi sp. nov. / J. Ribes, Pagola-Carte / & Heiss, 2008 ’ [red, typewritten label]. // Perenotus gen. nov. malobae sp. nov. / Roca-Cusachs & Goula det. 2016. Etymology. This species is dedicated to Marta López-Balcells, first author’s mother, as recognition for all her unconditional help, patience and support. The specific epithet is composed of the first two letters of the first name (ma) and the two family names (lo/ba) of the honoured person. Gender is female. Description. Length: 3.363 mm. Body surface shiny. Dorsal coloration brownish red, abdomen darker brown. Dorsal vestiture of head, pronotum, scutellum and hemelytra of erect, pale, long setae, as long as diameter of anterior tibia. Dorsal vestiture of abdomen of semi-erect, stout, pale, uniformly scattered setae, twice as long as diameter of anterior tibia, arranged in more than one row of setae on each abdominal segment of circa 20 setae per row (Fig. 1 a–b). Head dorsally pentagonal, globose, 0.67 mm long and 0.93 mm wide. Eyes small and flattened, postocular region rounded and strongly constricted towards pronotal collar. Ocular index = 5.86. Head in frontal view subtriangular and slightly higher than wider; antennal fossae equally distant from the inferior margin of eye and the base of clypeus. Head in lateral view ovoid, gulae slightly curved; gulae and jugae bearing erect setae; clypeus weakly protruding and separated from frons by a weak transversal sulcus; maxillary plates small. Rostrum brownish red in color, reaching base of abdomen. Segment I thick and nearly as wide as antennomere I, base concealed by inflated small bucculae, latter antero-laterally projected and visible in frontal view; segments II, III and IV thinner than rostromere I. Antennae stout; segment I thick, cylindrical, brown; segment II brownish with darker apex, slightly to distinctly arched in basal half and somewhat enlarged apically; segment III cylindrical, basal third whitish and apex blackish; segment IV fusiform, long ovate and dark. Antennae covered by erected brownish setae as long as diameter of antennomers. Length of antennal segments I-II-III-IV = 0.27-1.09-0.56- 0.43 mm. Ratio of segments III/II = 0.53. Pronotum 0.62 mm long and 0.612 m wide, 1.2 times as long as wide and 1.53 times as long as scutellum, dorsally globose with rounded lateral margins; anteriorly and posteriorly slightly constrained as a collar. Propleural acetabulae bilobate, laterally protruded, visible from dorsal view; acetabular lobes contiguous but not fused. Scutellum triangular, 0.41 mm long, 0.49 mm wide, lateral margins slightly convex, disc with a distinctive conical blunted hump on posterior apex of scutellum, as high as upper level of head and pronotum. Evaporatory area of metathoracic scent gland very prominent, transversal, ivory-whitish in color, with a robust peritreme and a large orifice bordering the metacoxa. Hemelytra shiny, smooth, distinctly surpassing the apex of scutellum, sub parallel at base and then divergent, posterior external apex right-angle-shaped and strongly turned upwards. Hemelytra 0.63 mm long and 0.74 mm maximal width. Clavus indistinct. Exocoria with longitudinal whitish band, anteriorly narrow, and posteriorly widening, not reaching posterior apex of coria. In lateral view, margin of coria sinuated. Legs long, slender and concolored with head, pronotum and scutellum except whitish apex of middle coxa and posterior coxa completely whitish. Tibiae and femora with long, erect, scattered, brownish setae. Length of metatarsus = 0.4 mm; claw of metatarsus = 0.07 mm; length of metatarsal segments I-II-III = 0.16-0.1-0.18 (all measures in mm). Abdomen swollen; coloration brown with darker terminal segments; connexivum reflexed dorsally. Female genitalia illustrated in Ribes et al. (2008). Male remains unknown. Distribution. At present only known from to the island of La Palma. Discussion. P. malobae sp. nov. includes one paratype female specimen from La Palma used by Ribes et al. (2008) to describe P. s t y s i (Ribes, Pagola-Carte & Heiss 2008). After revision of new material from La Palma, it is clear that all Perenotus specimens from La Palma belong to P. malobae sp. nov. Figure of female genitalia of P. malobae sp. nov. may be consulted in Ribes et al. (2008).Published as part of Roca-Cusachs, Marcos & Goula, Marta, 2016, New genus and species of ant-like true bug (Hemiptera: Miridae) from the Canary Islands in Zootaxa 4173 (1), DOI: 10.11646/zootaxa.4173.1.6, http://zenodo.org/record/15913
Goigs del glorios apóstol Sant Valentí, presbitero y màrtir, ques cantan en la iglesia y parroquia de S. Martí Sesgleyoles ...
No full textLa imprenta de Pablo Roca está a cargo de Luis Roca desde 1867 hasta 1877. Luis Roca tiene imprenta y litografía desde 1880 hasta 1897.Texto a dos columnas y con orla tipográficaHoja impresa por una sola caraGrabado xilográfico en cabecera con representación sant
Comedia en tres actos intitulada El rey Eduardo
No full textPrecede al tít. "Num. 10"Autor tomado del "Catálogo de comedias sueltas conservadas en la Biblioteca de la Real Academia Española", 1012."Agustín Roca ejerció ca.: 1815-1819, según "Cat. Col. Patrimonio Bibliográfico S. XIX"H HAZ/3824(2
Un disegno borrominiano per la facciata di S. Giovanni in Laterano
No full textUn disegno controverso per la facciata di San Giovanni in Laterano viene qui attribuito a Francesco Borromini, con schizzi aggiunti da Bernardo Castelli Borromini, sulla base di evidenze grafiche, del contesto progettuale, delle fonti scritte.A controversial design for the facade of St. John Lateran is here attributed to Francesco Borromini, with sketches added by Bernardo Castelli Borromini, on the basis of graphic evidences, the context of the project, written sources
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