Search results for "CALL"
showing 10 items of 2320 documents
Europa en la Calle
2000
Pasajes de París / 3: Al paso de la ciudad
2006
Pasajes de París / 7: Su universo simbólico
2006
La calle y el espacio público en la pintura gótica hispana
2001
En los siglos finales de la Edad Media los pintores comenzaron a utilizar su propio entorno como fuente de inspiración para ambientar la historia sagrada. En concreto en la Península Ibérica se han conservado algunas obras en cuyo fondo se reproducen, con mayor o menor fidelidad, calles y plazas de aspecto claramente medieval. El objeto del presente artículo es analizar esas vistas en su doble vertiente: como encuadramiento de las escenas y como elementos de la realidad, observando los modelos que se seguían resaltando la validez de estas fuentes iconográficas para el estudio de la vida cotidiana en el pasado.
Analysis of linear alkylbenzene samples with a camera-based equipment
2017
Nestemäisiä tuikeaineita hyödyntävät ilmaisimet ovat saaneet jalansijaa neutriinofysiikassa viime vuosikymmeninä. Perinteisiin Cherenkovin ilmaisimiin niiden etu on suurempi hiukkasten vuorovaikutuksesta aiheutuvan valon tuotto. Lisäksi edullisten, suhteellisen ympäristöystävällisten ja optisesti kirkkaiden tuikeaineyhdisteiden (bentseenin alkyylijohdannaiset) saatavuus mahdollistaa yhä suurempien ilmaisimien rakennuksen. Nestemäisten tuikeaineiden ongelmana on kuitenkin niiden taipumus kerätä epäpuhtauksia itseensä ja niiden muutosalttius UV-säteilyn ja korkeiden lämpötilojen vaikutuksesta. Muutokset heikentävät tuikeaineiden valon tuottoa, ja siksi nestemäisten tuikeaineiden puhdistusta j…
Callistemon citrinus and Cistus salvifolius, Two New Hosts of Phytophthora taxon niederhauserii in Italy.
2009
Bottlebrush (Callistemon citrinus (Curtis.) Skeels., Myrtaceae) and rock rose (Cistus salvifolius L., Cistaceae) are evergreen shrubs native to Australia and the Mediterranean Region, respectively. In the spring of 2003, approximately 2% of a nursery stock of 12-month-old potted plants of C. citrinus and 8% of a nursery stock of 12-month-old potted plants of Cistus salvifolius grown in the same nursery in Sicily, showed symptoms of leaf chlorosis, defoliation, and wilt associated with root and collar rot. A Phytophthora species was consistently isolated from roots and basal stems on BNPRAH selective medium (2). One isolate from rock rose (IMI 391708) and one from bottlebrush (IMI 391712) w…
The effect of explant cut and cytokinin type on micropropagation of fig (Ficus carica L.) 'Brown Turkey'
2017
This study was conducted to micropropagate 'Brown Turkey' fig, one of the most popular cultivars in California, USA for fresh and dried uses. Nodal segments cut lengthwise or not were cultured on Woody Plant Medium containing 0.3, 1.0 or 3.0 μM of N6 benzyladenine (BA) or kinetin in a 3 (concentrations) × 2 (cytokinins) × 2 (explant types) factorial experiment. 60% of explants became contaminated with various microbes when the standard protocol of washing shoots for 3 h under running tap water. Microbial contamination was nearly eliminated when the running water rinse and the use of an ascorbic acid dip were eliminated. Phenolic exudation was not a problem. Shoots grew longer with more leav…
Phenolic profiles of raw mono- and polyfloral honeys from Latvia
2021
Abstract The phenolic compound profiles of 393 raw mono- and polyfloral Latvian honey samples were investigated using a targeted ultra-high performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS) method. This strategy allowed simultaneous determination of the content of 11 phenolic acids, 18 flavonoids, 2 plant hormones, and 3 water-soluble vitamins in honey samples of botanically diverse origin, including buckwheat (Fagopyrum esculentum), heather (Calluna vulgaris), linden (Tilia cordata), and rapeseed (Brassica napus). Honey samples were collected directly from the beekeepers and were analyzed in their natural, raw form. A selective high-throughput analysis was im…
Phenolic compounds and abscisic acid as potential markers for the floral origin of two Polish unifloral honeys
2012
The phenolic profiles of Polish honey samples from heather (Calluna vulgaris L.) and buckwheat (Fagopyrum esculentum L.) were determined. The phenolic components were isolated from honey samples using Amberlite-XAD-2 as a solid-phase extraction sorbent. For the determination of the composition of the honey extracts HPLC with photodiode array detector was applied. Identification and quantification of phenolics was performed by comparison of their retention times and UV spectra with those of standard solutions of pure reference substances and by using those references as external standards. From among 20 commercially available standards over 15 of them were identified as present in all analys…
Chemometrics as a Tool of Origin Determination of Polish Monofloral and Multifloral Honeys
2014
The aim of this study was to evaluate the application of chemometrics studies to determine the botanical origin of Polish monofloral honeys using NMR spectroscopy. Aqueous extracts of six kinds of honeys, namely, heather (Calluna vulgaris L.), buckwheat (Fagopyrum esculentum L), lime (Tilia L), rape (Brassica napus L. var. napus), acacia (Acacia Mill.), and multifloral ones, were analyzed. Multivariate chemometric data analysis was performed using principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA). Chemometric analysis supported by pollen analysis revealed the incorrect classification of acacia honeys by the producers. Characteristic moti…