997 resultados para Espanya-Història-218 a.C.-414 d.C. (Època romana)
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Un de cada sis joves a España és d'origen estranger. Molts d'ells, tot i haver-hi nascut o arribat en la seva primera infància, encara avui, no estan integrats. Des d'aquesta perspectiva, es presenta una anàlisi teòrica del grup dels joves d'origen estranger des de la preocupació per entendre que, a més del condicionant d'aquestes edats, aquest context presenta característiques específiques determinades per l'element multicultural. Per això, partim de la conceptualització de la integració, abordem els dos elements constitutius de la joventut (identitat i desenvolupament moral), analitzem la influència de les relacions entre iguals, presentem el fenomen de la immigració en el cas de la joventut i, finalment, tanquem amb la revisió del concepte de «segones generacions» i el seu impacte sobre els joves d'origen estranger.
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The twenty-second Theoretical Roman Archaeology Conference (TRAC) was held at the Goethe-University Frankfurt am Main in spring 2012. During the three-day conference fifty papers were delivered, discussing issues from a wide range of geographical regions of the Roman Empire, and applying various theoretical and methodological approaches. An equally wide selection of subjects was presented: sessions looked at Greek art and philhellenism in the Roman world, the validity of the concept of 'Romanisation', change and continuity in Roman religion, urban neighbourhood relations in Pompeii and Ostia, the transformation of objects in and from the Roman world, frontier markets and Roman archaeology in the Provinces. In addition, two general sessions covered single topics such as the 'transvestite of Catterick', metal recycling or Egyptian funeral practice in the Roman period. This volume contains a selection of papers from all these sessions.
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El 2003 es va publicar el catàleg de plantes vasculars del Parc del Cadí-Moixeró i les serres veïnes; poc després un de nosaltres en va presentar una síntesi en el número 3 d"aquesta revista. Al·ludíem aleshores a l"important bagatge tant d"exploracions científiques com de dades sobre la flora del territori existents en el moment de redactar el catàleg; de fet, gairebé tots els botànics catalans, i molts de francesos i d"espanyols, hi han passat en algun moment i han contribuït al coneixement de la seva flora.
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1792/10-12 (T4).
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1793/01-07 (T5).
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1792/01-04 (T2).
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1791/11-12 (T1).
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Variante(s) de titre : La Chronique du mois ou les Cahiers patriotiques des Amis de la vérité
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1792/05-09 (T3).
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This review describes the endeavors that led to the total synthesis of a novel class of antibiotic compounds: the crocacins A-D. Other aspects such as isolation, structural elucidation as well as the biological activities are also presented.
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The identification of the chemical compounds of the essential oil was performed with a gas chromatograph coupled to a mass spectrometer. The oil was left in the presence and absence of light and submitted to different temperatures to evaluate its stability. The yields of the major compounds were evaluated every fifteen days. Citral and myrcene, the major compounds of the essential oil, were degraded over time in both the presence and absence of light, but temperature only influenced the degradation of myrcene.
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Edibles films are an alternative to synthetic materials used for packing food products. Barbados cherry is rich in vitamin C and carotenoids. The aim of this study was to characterize and develop films by casting from cassava starch, lyophilized Barbados cherry pulp and glycerol. The films were characterized with respect to thickness, water vapor permeability (WVP), water solubility, vitamin C, carotene and mechanical properties. The interaction of pulp and glycerol reduced film thickness. An increase in pulp concentration up to 60% increased WVP but beyond this concentration reduced both WVP and solubility leading to an increased level of vitamin C and β carotene in the films.