Indagaciones formales en la arquitectura califal cordobesa a propósito de un enigmático dibujo de 1727

[EN] The Andalusian caliphate forms continue to fascinate us to this day. We marvel at the complexity of certain forms and wonder about the sources that inspired them. The need to interpret the late drawing of a mosque converted into a church in Córdoba has prompted us to examine this subject in greater detail. The building would appear to belong to the rare “nine vault” typology, although it has yet to be dated. In this paper we analyse the origin, use and chronology of significant architectural organisations drawn on the plan. Some of them have obvious analogies with the ones used in the enlargement of the great mosque in Córdoba undertaken by the Umayyad caliph al-Hakam II, while others evidence the arrival and creative adaptation of forms used in ancient Ifr qiya.[ES] La síntesis de las formas califales andalusíes aún suscita interés, sorprendiéndonos la sofisticación de algunas formalizaciones, a la vez que nos interrogamos por los referentes de los que pudieron nutrirse. La necesidad de interpretar el tardío dibujo de una mezquita reconvertida en Córdoba, posiblemente del raro tipo de “nueve bóvedas”, así como de datar el primitivo edificio islámico, ha llevado a profundizar en la problemática planteada. Serán de interés el origen, uso y cronología de significativos expedientes formales que parecen grafiarse en el plano, algunos con sospechosas analogías con los utilizados en la ampliación de la aljama cordobesa por el califa omeya al-Hakam II, y otros que apuntan a la recepción y creativa adaptación de soluciones de la antigua Ifrīqiya.García Ortega, AJ. (2021). Formal investigations into the caliphal architecture of Córdoba based on an enigmatic drawing from 1727. EGA Expresión Gráfica Arquitectónica. 26(42):54-65. https://doi.org/10.4995/ega.2021.14946OJS5465264

Color composition in postmodern western architecture

This is the pre-peer reviewed version of the following article: Serra, J. and Codoñer, Á. G. (2014), Color composition in postmodern western architecture. Color Res. Appl., 39: 399–412. doi: 10.1002/col.21814, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/col.21814/abstractThis research aims to know some of the most innovative aspects of color in composition of postmodern architecture in Europe, approximately between 1960 and 2000. We describe the main chromatic trends in this period following historian JA. Ramírez's formal classification: the new utopias (‘60s), neo-illuminist rationalism (‘70s), figurative postmodernity (‘80s), and deconstructivism (‘90s). For each trend, we point out some color composition features; analyze a case study building; and reflect on later influence on contemporary colored architecture. © 2013 Wiley Periodicals, Inc.Serra Lluch, J.; García Codoñer, Á. (2014). Color composition in postmodern western architecture. Color Research and Application. 39(4):399-412. doi:10.1002/col.21814S399412394Thoenes C Evers B Teoría de la arquitectura: del Renacimiento a la actualidad Köln Taschen 2006 575Porter T Colour in the Looking Glass UK Architectural Design: Colour in Architecture 1996 8 10Rogers R Theory: Legibility [Online] www.richardrogers.co.uk/theory/legibilityMeier R The Pritzker Architecture Prize: Acceptance Speech [Online] 1984 http://www.pritzkerprize.com/1984/ceremony_speech1Braghieri G Aldo Rossi Barcelona Gustavo Gili 1982 72 73Hess A Colorful landmarks: How color shaped public space in 1950s suburbia Doherty G Cambridge New Geographies 3: Urbanisms of Color, Harvard University press 2010 108 109Schindler VM Polychrome Environments at the Centre Pompidou in Paris: An Interview with France and Michel Cler, ArchitectôColour Consultants www.istitutocolore.it/attivita.aspHess A Colorful landmarks: How color shaped public space in 1950s suburbia Doherty G Cambridge New Geographies 3: Urbanisms of Color 2010 106 113Serra J. Projects Born by Colours: An Interview with British Architect William Alsop Valencia EGA Expresiûn Gráfica Arquitectónica 196 197MVRDV Projects Realized http://www.mvrdv.nl/#/news/074studiothonikHadid Z Futagawa Y Zaha M Hadid Tokyo: A.D.A. Edita 1995 66 9

Reseñas de libros

García Codoñer, Á. (2010). Reseñas de libros. EGA. Revista de Expresión Gráfica Arquitectónica. 15(15). https://doi.org/10.4995/ega.2010.987SWORD151

Editorial: Aproximación histórica al dibujo de arquitectura en España en el siglo XX

[ES] La reflexión sobre el dibujo de arquitectura desde sus fases históricas, ya sean las de ideación, representación o proyección, es el argumento sobre el que venimos trabajando como especialistas en las páginas de EGA.García Codoñer, Á. (2016). Editorial: Aproximación histórica al dibujo de arquitectura en España en el siglo XX. EGA. Revista de Expresión Gráfica Arquitectónica. 21(28):30-31. doi:10.4995/ega.2016.6667SWORD3031212

Editorial

[EN] The first issue of EGA was printed in 1993.The magazine was born out of the urge and will of the Architectural Graphic Expression field of study[ES] En el año 1993 ve la luz el primer número de EGA. La revista nace por necesidad y vo-luntad del Área de conocimiento de Expresión Gráfica ArquitectónicaGarcía Codoñer, Á. (2015). Editorial. EGA. Revista de Expresión Gráfica Arquitectónica. 20(25):32-35. doi:10.4995/ega.2015.3963SWORD3235202

Color Composition Features in Modern Architecture

This is the pre-peer reviewed version of the following article: Serra, J., García, Á., Torres, A. and Llopis, J. (2012), Color composition features in modern architecture. Color Res. Appl., 37: 126–133. doi: 10.1002/col.20657 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/col.20657/abstract;jsessionid=32EFF118A442D8103D1391F9485EFF4F.f04t02The color composition in modern architecture has been often characterized in a simplistic manner. In fact, this is a complex phenomenon to be studied because of the disparity of proposals and the uniqueness of the architects involved. This research starts with a comparative study of three of the most relevant color composition systems in the first half of the 20th century (Purism and Le Corbusier, Expressionism and Taut, Neoplasticism and Rietveld), and aims to find common characteristics among them, discussing the validity of some widespread ideas about it, such as the prominence of white hues, the use of "flat colors," or the conception of color during the ideation phase. We propose and demonstrate three principles that are not categorical about the color composition in modern architecture: it limits the variety of hues; it not only uses white color but also displays color to conform shapes and to transform them; color has ethical connotations and not only aesthetic ones. Copyright © 2011 Wiley Periodicals, Inc.Serra Lluch, J.; García Codoñer, Á.; Torres Barchino, AM.; Llopis Verdú, J. (2012). Color Composition Features in Modern Architecture. Color Research and Application. 37(2):126-133. doi:10.1002/col.20657S12613337

The preservation of the chromatic image of historical cities as a cultural value. The old city of Valencia (Spain)

[EN] Understanding the physical and material characteristics of our historical cities is essential for the preservation of their hereditary and cultural values. Beyond the historical logic of the urban scene and its functional nature, the city is sensed through the spaces, which it creates and configures. The spaces of the historical city represent the soul of its history and the final result of its development. Through the architectural configuration of these spaces, we can visualize the historical and vital logic that underlies the city, the heritage of the people and cultures that make it up. The Study for the Recovery of Urban Spaces in Valencia Historical Center is an interdisciplinary project of intervention in patrimonial architecture, aiming to recover the original image of spaces in the historical city center. This is a project started in 1995 and ended in 2013, which is formed by a series of activities in which both, the Polytechnic University of Valencia as a research institution and the public administrations involved in the processes of regeneration and restoration of the historic center, take part. The aim of the project has been the start-up of a dynamic restoration process of the city's historic urban centre and its landscape value. By combining scientific studies, tasks of awareness and sensitization of population, it aims to determine the formal and chromatic characteristics of original spaces that create the architecture of the city.The conclusions of this article are based on projects funded by the Excmo. Ayuntamiento de Valencia (Spain), and the Conselleria de Cultura Educacion y Ciencia de la Generalitat Valenciana (Spain).Llopis Verdú, J.; Torres Barchino, AM.; Serra Lluch, J.; García Codoñer, Á. (2015). The preservation of the chromatic image of historical cities as a cultural value. The old city of Valencia (Spain). Journal of Cultural Heritage. 16(5):611-622. https://doi.org/10.1016/j.culher.2015.01.005S61162216

Effect of Adding Resistant Maltodextrin to Pasteurized Orange Juice on Bioactive Compounds and Their Bioaccessibility

[EN] Resistant maltodextrin (RMD) is a water-soluble and fermentable functional fiber. RMD is a satiating prebiotic, reducer of glucose and triglycerides in the blood, and promoter of good gut health, and its addition to food is increasingly frequent. Therefore, it is necessary to study its potential effects on intrinsic bioactive compounds of food and their bioaccessibility. The aim of this study was to evaluate the effect of adding RMD on the bioactive compounds of pasteurized orange juice with and without pulp, and the bioaccessibility of such compounds. RMD was added at different concentrations: 0 (control sample), 2.5%, 5%, and 7.5%. Ascorbic acid (AA) and vitamin C were analyzed using HPLC, whereas total phenols, total carotenoids (TC), and antioxidant capacity were measured using spectrophotometry. After that, sample in vitro digestibility was assessed using the standardized static in vitro digestion method. The control orange juice with pulp presented significantly higher values of bioactive compounds and antioxidant capacity than the control orange juice without pulp (p < 0.05). RMD addition before the juice pasteurization process significantly protected all bioactive compounds, namely total phenols, TC, AA, and vitamin C, as well as the antioxidant capacity (AC) (p < 0.05). Moreover, this bioactive compound protective effect was higher when higher RMD concentrations were added. However, RMD addition improved phenols and vitamin C bioaccessibility but decreased TC and AA bioaccessibility. Therefore, the AC value of samples after gastrointestinal digestion was slightly decreased by RMD addition. Moreover, orange pulp presence decreased total phenols and TC bioaccessibility but increased AA and vitamin C bioaccessibility.This research was supported by Agencia Valenciana de la Innovacio (Generalitat Valenciana) (research grant ref. INNTAL31/19/002).Arilla, E.; García-Segovia, P.; Martínez-Monzó, J.; Codoñer-Franch, P.; Igual Ramo, M. (2021). Effect of Adding Resistant Maltodextrin to Pasteurized Orange Juice on Bioactive Compounds and Their Bioaccessibility. Foods. 10(6):1-15. https://doi.org/10.3390/foods10061198S11510

Stability of vitamin C, carotenoids, phenols, and antioxidant capacity of pasteurised orange juice with resistant maltodextrin storage

[EN] Resistant maltodextrin (RMD) was added at increasing concentrations (0%, 2.5%, 5% and 7.5%) before pasteurisation to orange juice to analyse its potential protective effect on the health-related bioactive compounds of pasteurised orange juice throughout its storage time. Samples were characterised in terms of basic physicochemical properties and bioactive compounds at the beginning of the storage. Higher concentrations of RMD proved to better preserve the bioactive compounds of orange juice, thus obtaining a higher antioxidant capacity (AC). Stability of all samples was determined by measuring the same parameters at days 0, 15, 45, 75, 105, 136 and 170 of storage. °Brix and pH were very stable in all samples along storage, while all bioactive compouds had negative variations. However, RMD addition slightly improved ascorbic acid, vitamin C, total phenols, and total carotenoids retention, improving then its AC. This effect was greater in the 5% RMD-added samples. All bioactive compounds showed a positive Pearson¿s correlation coefficient with AC. Colour variations were also measured at days 105 and 170. All samples had a positive variation of all colour parameters, being this clearer at day 170. This work enlights the potential functionality of RMD to better preserve the health-related compounds of pasteurised orange juice.Arilla, E.; Martínez-Monzó, J.; Codoñer-Franch, P.; García-Segovia, P.; Igual Ramo, M. (2022). Stability of vitamin C, carotenoids, phenols, and antioxidant capacity of pasteurised orange juice with resistant maltodextrin storage. Food Science and Technology International. https://doi.org/10.1177/1082013222112420

Analysis of colours and sun exposure in the Towers of Quart in Valencia (Spain)

[ES] En las Torres de Quart (s. XV) de la ciudad de Valencia, se ha desarrollado un exhaustivo trabajo de medición cromática de los restos de pigmentos existentes en las fachadas extramuros del edificio, sobre tres estratos materiales de distinta naturaleza. Asimismo, se ha estudiado la incidencia de la luz solar sobre las superficies del edificio.Se describe y justifica el proceso llevado a cabo para la obtención de un documento gráfico preciso del estado del color y su iluminación que permita establecer un protocolo de actuación para intervenir en el monumento.[EN] In the Towers of Quart (15th century) in the city of Valencia (Spain), an exhaustive chromatic measurement has been done of the remains of colour pigment found on the three distinct materials used in the external façade walls. The sun lighting exposure on the building surfaces has also been studied. The paper describes and justifies the process for making an accurate study of the state of the colour and its illumination by the sun, which enables guidelines to be established for renovation works on the monument.Torres Barchino, AM.; Serra Lluch, J.; Llopis Verdú, J.; Higón Calvet, JL.; García Codoñer, Á.; Saiz Mauleón, MB. (2012). Análisis del color y el soleamiento en las Torres de Quart de Valencia (España). Informes de la Construcción. 64(527):261-274. https://doi.org/10.3989/ic.11.041S2612746452