113,247 research outputs found
Árbol de Myroxylon peruiferum (Fabaceae) en periodo de fructificación
No full textEl video muestra un árbol de chirraca (Myroxylon peruiferum, Fabaceae) en periodo de fructificación. El video fue filmado por G. Solano el 31 de mayo de 2021 en el campus de la Universidad de Costa Rica, San José, Costa Rica. / This video shows a chirraca tree (Myroxylon peruiferum, Fabaceae) in fruiting period. The video was filmed by G. Solano on May 31, 2021 on the campus of the University of Costa Rica, San José, Costa Rica
Scale-up activation of carbon fibres for hydrogen storage
No full textIn a previous study, we investigated, at a laboratory scale, the chemical activation of two different carbon fibres (CF), their porosity characterization, and their optimization for hydrogen storage [1]. In the present work, this study is extended to: (i) a larger range of KOH activated carbon fibres, (ii) a larger range of hydrogen adsorption measurements at different temperatures and pressures (i.e. at room temperature, up to 20 MPa, and at 77 K, up to 4 MPa), and (iii) a scaling-up activation approach in which the obtained activated carbon fibres (ACF) are compared with those from laboratory-scale activation. The prepared samples cover a large range of porosities, which is found to govern their ability for hydrogen adsorption. The hydrogen uptake capacities of all the prepared samples have been analysed both in volumetric and in gravimetric bases. Thus, maximum adsorption capacities of around 5 wt% are obtained at 77 K, and 1.1 wt% at room temperature, respectively. The packing densities of the materials have been measured, turning out to play an important role in order to estimate the total storage capacity of a tank volume. Maximum values of 17.4 g/l at 298 K, and 38.6 g/l at 77 K were obtained.Osaka Gas Co., Ltd. supplied the two precursor materials. Financial help was received from the European Union (Marie Curie Research Training Network-HyTRAIN-Project reference: 512443), MEC (ENE2005-23824-E/CON), the Generalitat Valenciana (ACOMP06/089 and PROMETEO/2009/047), as well as MEC-CTQ2006-08958/PPQ
FIGURE 2. Epidendrum amoanum Zambrano & Solano. A. Habit. B in Miscellaneous of new species in Epidendrum (Orchidaceae) from southwestern Ecuador
No full textFIGURE 2. Epidendrum amoanum Zambrano & Solano. A. Habit. B. Apex of the leaf. C. Detail of the peduncle, rachis and floral bracts. D. Flower, 3/4 view. E. Perianth dissection. F. Ovary and column, lateral view. G. Detail of the column, lateral and ventral view. H. Anther cap and pollinarium. Plate by B.J. Zambrano based on the plant that served as type.Published as part of Romero, Bosco Javier Zambrano, Hágsater, Eric & Solano, Rodolfo, 2021, Phytotaxa 511 (2) on pages 111-114, DOI: 10.11646/phytotaxa.511.2.2, http://zenodo.org/record/542658
What we desire is african: intertextuality of negritude in Clarke's and Trindade's poetry
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-graduação em Letras/Inglês e Literatura CorrespondenteEste trabalho investiga a intertextualidade entre as poesias de Solano Trindade e George Elliot Clarke. O estudo analisa o uso de um eu-enunciador que descreve a luta dos poetas contra a invisibilidade do "eu" negro, a construção de um anti-épico que reconta a história do ponto de vista do negro, a reversão de valores que reafirma a tradição e a cultura negras, e a tentativa de construir uma nova ordem simbólica que se expressa pela ruptura de estereótipos nos textos dos dois autores. A pesquisa revê o discurso da negritude e sua presença na Poesia negra hoje
Pandemia COVID-19 y estrategia de comunicación gubernamental en Panamá
No full textEsta investigación es un aporte para futuros tomadores de decisiones estratégicas en crisis de salud, investigadores sobre los fenómenos generales de la comunicación en salud, profesionales, académicos de la comunicación social y personas interesadas en los avatares de la comunicación gubernamental en Panamá. Un objetivo importante para hacerla fue estudiar la estrategia de comunicación gubernamental para conocer qué se hizo y cómo se hizo en materia de comunicación en salud durante el primer año de la pandemia COVID-19, y que así futuras actuaciones tengan un antecedente documentado y puedan estar sustentadas en la experiencia ganada para gestionar situaciones de salud parecidas en el futuro. El libro recoge evidencia empírica sobre la comunicación gubernamental analizada a través de su estrategia, se aportan datos en tablas y gráficos, se describe el contexto pandémico, las temporalidades del fenómeno en el país, las acciones que realizó el gobierno para afrontar la pandemia, testimonios de la experiencia individual de los actores principales de la salud en las Regiones de Salud, los productos comunicacionales analizados, la desinformación y una evaluación técnica de lo actuado
Synthesis and cytotoxic activities of 3-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1H-benzo[g]indole and related compounds
No full text3-(5-phenyl-[1,3,4]oxadiazol-2-yl)-1H-benzo[g]indole and related compounds : synthesis and cytotoxic activities
No full text“Una postazione di miliari” tardoantichi lungo la Verona-Brixia-Mediolanum. Il ritrovamento di Brescia, via Milano
No full textEdizione preliminare di due cippi miliari, il frammento di un terzo, una colonna miliare e un’ara/base iscritta di età tetrachica e successiva rinvenuti nel gennaio 2021, durante il controllo archeologico ai lavori di sostituzione della rete fognaria e dei sottoservizi lungo via Milano a Bresci
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