House in a “rice paddy”. An ideogram of interaction in the contemporary japanese habitat

La disposición en “campo de arroz”, o división del espacio de la vivienda en cuatro partes siguiendo el ideograma kanji de origen chino “TA”, fue el modelo tipológico de la casa tradicional popular en Japón, cuya disposición generaba fuertes vínculos en el grupo familiar. La reciente aparición de una nueva generación de arquitectos que, a partir de SANAA, busca recuperar la interacción familiar en las pequeñas viviendas urbanas de la trama de ciudades como Tokio, coincide con una recurrente reaparición de la disposición de la vivienda en forma de “TA”. Una forma trasladada, ahora, a un modelo espacial que se libera de las estrictas servidumbres que caracterizaban a la vivienda tradicional. En los últimos años, estas pequeñas viviendas tienden a abrirse a la trama urbana, frente a la opacidad que había caracterizado a las obras de la generación de arquitectos anterior, expresando el interés por la interacción con la comunidad más allá de la vida familiar. Y en este sentido, la utilización del ideograma en forma de “campo de arroz” persiste como un referente dispositivo en el hábitat japonés contemporáneo.The “rice paddy” arrangement, or division of the space of the house into four parts, following the kanji ideogram “TA” of Chinese origin, was the typological model of the popular traditional house in Japan, whose arrangement generated strong bonds within the family group. The recent appearance of a new generation of architects which, after SANAA, seeks to recover the family interaction in the small urban houses of the fabric of cities, such as Tokyo, coincides with a recurrent reappearance of the arrangement of the home in the form of a “TA”. A form transferred, now, to a spatial model that is free of the strict codes that characterized the traditional house. In recent years, these small houses have tended to open themselves up to the urban fabric, expressing the interest for interaction with the community beyond family life, as opposed to the opacity that had characterized the works of the previous generation of architects. Therefore, the use of the ideogram in the form of a “rice paddy” persists as a benchmark device in the contemporary Japanese habitat

Contribución al conocimiento melitopalinológico de Huelva y Sevilla

Nineteen spring honey samples from different localities of the regions of El Andévalo (Huelva) and North Sierra of Sevilla have been studied by light microscopy. The results are compared with those of previous melissopalynological studies of these regions. It is shown that honeydew is little important as honey source during spring, though it is not the same in other seasons. Available data suggest that, as a whole, the apiculturally-interesting flora of North Sierra of Sevilla is more diverse than that of El Andévalo, but pollen spectra of El Andévalo honeys, individually, have not a lesser number of types. One-third of the pollen types found in this work had not been recorded before in samples from these regions, but the main apicultural resources had been already detected in the previous studies. The current results emphasize notably the role of Echium plantagineum and Lavandula stoechas as spring nectar sources, and point out the possibility of getting unifloral honeys from these taxa. In like manner, it is emphasized the role of severa l species of Cistus as main pollen resources during spring. Among the taxa whose pollen grains have been found in this work for the first time in samples from these regions, Teucrium capitatum, as nectar source, and Cistus libanotis, as pollen source, are the most outstanding ones, their importance being local.Se ha estudiado al microscopio óptico el sedimento de 19 muestras de miel producidas en primavera en varias localidades de las comarcas del Andévalo (Huelva) y la Sierra Norte de Sevilla. Los resultados obtenidos se comparan con los de anteriores estudios de mieles de estas comarcas producidas durante todo el año (cosecha de apicultores). Se pone de relieve que la mielada tiene poco significado como fuente de miel durante la primavera, aunque no es así en otros periodos del año. Los resultados disponibles sugieren que, en su conjunto, la flora de interés apícola de la Sierra Norte de Sevilla es más diversa que la del Andévalo, aunque ello no se traduce en que las mieles del Andévalo individualmente tengan espectros polínicos con menor número de tipos. La tercera parte de los tipos polínicos encontrados en este trabajo no se habían encontrado con anterioridad en muestras de estas comarcas, sin embargo los principales recursos apícolas ya se habían detectado antes. Los resultados actuales destacan notablemente el papel de Echium plantagineum y de Lavandula stoechas s.l. como recursos nectaríferos de primavera y señalan la posibilidad de obtención de mieles monoflorales de estas especies. Asimismo queda destacado el papel de varias especies de Cistus como principales recursos poliníferos primaverales. Entre las especies cuyo polen se ha encontrado por primera vez en estas comarcas destacan Teucrium capitatum como fuente de néctar y Cistus libanotis de polen, ambos con interés local

Estudio microscópico de miel y polen apícola de la provincia de Sevilla

El objetivo del presente trabajo es poner de manifiesto cuál es la flora de mayor interés apicola en las áreas de sierra de la provincia de Sevilla. Se han estudiado al microscopio óptico veinte muestras de miel y dos de polen procedentes de diversas localidades de la provincia. Los resultados ponen de manifiesto que la principal fuente de miel paraApis mellijfera L. es el néctar de las flores, si bien, a escala local, en Sierra Morena la mielada llega a ser muy valiosa como fuente de miel. Como principales fuentes de néctar cabe destacar a Echium plantagineum L., Eucalyptus camaldulensis Dehnh., Lavanda/a stoechas L., Thymbra cap itata (L.) Cay. y Helianthus annuus L., mientras que de polen lo son Cistus albidus L., C. ladaniifer L., Quercus spp., Myrtus communis L. y Papaver rhoeas L

Theoretical and experimental structural studies of historical Latin-American laminated planked timber arches

This article describes a first group of theoretical and experimental works undertaken at the Polytechnic University of Madrid. One major purpose is to obtain a structural model for the assessment of historical Latin-American vertically laminated planked timber arches built by the Spanish, mainly in the XVII and XVIII centuries. Many of those constructions still stand and represent a notable historical heritage. Pedro Hurtado recently presented his Ph. D. thesis on historical and construction topics. A structural study was then undertaken. This step of the structural research focussed on static analysis, most especially the deformation in the connection system. This article describes part of this first structural research. Even though it is still at a basic level, it shows reasonable agreement with the experimental results. Further static analytical models are been now developed and implemented. The next stage will address the dynamic problem, even though improvements will be made also in the constitutive equations

Bernard Rudofsky’s epicurean eye: drawings from his journeys

[EN] Almost three decades have passed since the death of the multifaceted architect and prominent contemporary design theorist Bernard Rudofsky, and this article pays homage to his life and career. It focuses on the drawings and travels that that had the greatest influence on his life and critical thinking, and in particular his stay on the Greek island of Santorini in 1929.[ES] Este artículo rinde homenaje a la figura y trayectoria del polifacético arquitecto Bernard Rudofsky, destacado teórico del diseño contemporáneo, cuando están a punto de cumplirse tres décadas de su fallecimiento, incidiendo en aquellos aspectos relacionados con sus dibujos y viajes que más han influido en su vida y su pensamiento crítico; en particular, su estancia en la isla griega de Santorini en 1929.Linares García, F.; Gallego Fernández, PL. (2018). La mirada epicúrea de Bernard Rudofsky: los dibujos de sus viajes. EGA. Revista de Expresión Gráfica Arquitectónica. 23(33):228-239. doi:10.4995/ega.2018.10388SWORD2282392333BERGUERA, Iñaki. 2016. "Spain, photographs with¬out photographer: la mirada analítica de Bernard Rudofsky"; en A.A.V.V., Fotografía y arquitectura moderna en España; Madrid, pp. 238-259.BOCCO, Andrea. 2003. A humane designer; Springer-Verlag, Wien.NOEVER, Peter. 1986. Entrevista a Bernard Rudofsky; Umriss 5, nº 1.ROSSI, Hugo. 2015. Bernard Rudofsky, architetto; Clean Edizioni, Napoli.RUDOFSKY, Bernard. 1964. Architecture Without Architects; Academy Editions, London.A.A.V.V. 2007. Lessons from Bernard Rudofsky. Life as a Voyage; Birkhäuser, Basel.A.A.V.V. 2014. Bernard Rudofsky. Desobediencia crítica a la modernidad; Centro José Guerrero, Granada

Glottal Source Cepstrum Coefficients Applied to NIST SRE 2010

Through the present paper, a novel feature set for speaker recognition based on glottal estimate information is presented. An iterative algorithm is used to derive the vocal tract and glottal source estimations from speech signal. In order to test the importance of glottal source information in speaker characterization, the novel feature set has been tested in the 2010 NIST Speaker Recognition Evaluation (NIST SRE10). The proposed system uses glottal estimate parameter templates and classical cepstral information to build a model for each speaker involved in the recognition process. ALIZE [1] open-source software has been used to create the GMM models for both background and target speakers. Compared to using mel-frequency cepstrum coefficients (MFCC), the misclassification rate for the NIST SRE 2010 reduced from 29.43% to 27.15% when glottal source features are use

Representational task formats and problem solving strategies in kinematics and work

Previous studies have reported that students employed different problem solving approaches when presented with the same task structured with different representations. In this study, we explored and compared students’ strategies as they attempted tasks from two topical areas, kinematics and work. Our participants were 19 engineering students taking a calculus-based physics course. The tasks were presented in linguistic, graphical, and symbolic forms and requested either a qualitative solution or a value. The analysis was both qualitative and quantitative in nature focusing principally on the characteristics of the strategies employed as well as the underlying reasoning for their applications. A comparison was also made for the same student’s approach with the same kind of representation across the two topics. Additionally, the participants’ overall strategies across the different tasks, in each topic, were considered. On the whole, we found that the students prefer manipulating equations irrespective of the representational format of the task. They rarely recognized the applicability of a ‘‘qualitative’’ approach to solve the problem although they were aware of the concepts involved. Even when the students included visual representations in their solutions, they seldom used these representations in conjunction with the mathematical part of the problem. Additionally, the students were not consistent in their approach for interpreting and solving problems with the same kind of representation across the two topical areas. The representational format, level of prior knowledge, and familiarity with a topic appeared to influence their strategies, their written responses, and their ability to recognize qualitative ways to attempt a problem. The nature of the solution does not seem to impact the strategies employed to handle the problem

Molecular hints of two-step transition to convective flow via streamline percolation

Financial support from Spanish Ministry MINECO Project No. FIS2017-84256-P and Junta de Andalucía Grant No. A-FQM-175-UGR18, both supported by the European Regional Development Fund, is acknowledged. This work is also part of the Project of I+D+i Ref. No. PID2020-113681GBI00, financed by MICIN/AEI/10.13039/501100011033 and FEDER A Way to Make Europe. We are also grateful for the computational resources and assistance provided by PROTEUS, the supercomputing center of Institute Carlos I for Theoretical and Computational Physics at the University of Granada, Spain.Convection is a key transport phenomenon important in many different areas, from hydrodynamics and ocean circulation to planetary atmospheres or stellar physics. However, its microscopic understanding still remains challenging. Here we numerically investigate the onset of convective flow in a compressible (non-Oberbeck- Boussinesq) hard disk fluid under a temperature gradient in a gravitational field.We uncover a surprising two-step transition scenario with two different critical temperatures. When the bottom plate temperature reaches a first threshold, convection kicks in (as shown by a structured velocity field) but gravity results in hindered heat transport as compared to the gravity-free case. It is at a second (higher) temperature that a percolation transition of advection zones connecting the hot and cold plates triggers efficient convective heat transport. Interestingly, this picture for the convection instability opens the door to unknown piecewise-continuous solutions to the Navier-Stokes equations.Federación Española de Enfermedades RarasMinisterio de Economía y Competitividad FIS2017-84256-PEuropean Regional Development Fund MICIN/AEI/10.13039/501100011033, PID2020-113681GB-I00Junta de Andalucía A-FQM-175-UGR1

Palaeobiogeographic affinities of the reef faunas from the earliest Pragian in the Cantabrian Zone (NW Spain)

Devonian reef faunas in the Cantabrian Zone are well known through several works done by the Research Group on Devonian Reefs from Oviedo University. This Group has established up to seven Devonian reef episodes of different magnitude and some of them were widely studied (Méndez-Bedia et al., 1994, Fernández et al., 1997, among others). The first episode was developed during the earliest Pragian and is recorded in some thin-bedded biostromal limestones with a rich fauna of corals and stromatoporoids. This interval has been studied within the context of the project CGL2005-03715/BTE and the results are currently in press. The aim of this work is to display the palaeobiogeographical affinities shown by the corals and stromatoporoids occurring in this first reef episode