415 research outputs found

    Tras las huellas del príncipe Ahmose-Sapair

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    El príncipe Ahmose-Sapair debió fallecer en torno al año 1550 a. C., y poco tiempo después comenzó a ser venerado y luego percibido como un miembro memorable de la familia real en Tebas durante cinco siglos. Mientras que su parentesco, recuerdo y culto ha sido objeto de estudio por diferentes autores, la cuestión de la posible ubicación de su tumba no ha sido nunca tratada en profundidad, a pesar de ser un aspecto relevante de su veneración postuma. El presente artículo aborda esta cuestión, revisando la documentación de excavaciones anteriores y a la luz de los recientes hallazgos realizados por la misión arqueológica española que excava en Dra Abu el-Naga, al suroeste del patio de entrada a la tumba-capilla de Djehuty (TT 11)Prince Ahmose-Sapair passed away around 155O BC. He was worshipped soon after his death and was regarded as a memorable member of the royal family in Thebes for around five centuries. While his ancestry, remembrance and worship have been the subject of several studies, the location of his tomb has not been discussed in depth, despite the fact that it appears to be a significant aspect in his posthumous cult. This matter is hereby addressed, re-examining the data from earlier excavations and in the light of recent discoveries made by the Spanish mission working in Dra Abu el-Naga North, southwest of the open courtyard of the tomb-chapel of Djehuty (TT 11

    La Odisea desde la Egiptología

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    The author's aim is to show how the Classical sources, as in this case the Odyssey, can shine even brighter if they are read from a Near Eastern perspective. Cultures, artists and craftsmen are not isolated phenomena in time and space, and for that matter it is sound to approach the Classic culture and authors from previous times and from near by places with which they themselves or their predecessors maintained contacts. In this paper the author brings together some topics from the Odyssey and their counterparts in ancient Egyptian sources

    Coordinating heterogeneous IoT devices by means of the centralized vision of the SDN controller

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    The IoT (Internet of Things) has become a reality during recent years. The desire of having everything connected to the Internet results in clearly identified benefits that will impact on socio economic development. However, the exponential growth in the number of IoT devices and their heterogeneity open new challenges that must be carefully studied. Coordination among devices to adapt them to their users' context usually requires high volumes of data to be exchanged with the cloud. In order to reduce unnecessary communications and network overhead, this paper proposes a novel network architecture based on the Software-Defined Networking paradigm that allows IoT devices coordinate and adapt them within the scope of a particular context.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Teaching the mean-field approximation

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    [ENG] Many University subjects that we teach in engineering degrees (e.g. Control Theory, Operations Research, Game Theory, Physics, Fluid Dynamics, Modelling and Control of Queuing and Production Systems, Stochastic Processes, and Network Theory) make extensive use of the so-called mean-field analysis. In these subjects, the mean-field analysis often appears as an approximation of a discrete time stochastic process where a) the inherent stochasticity of the original process is replaced with determinism, and b) the time discreteness of the original process is replaced with time continuity. Thus, the mean-field approximation is presented as a continuous time differential equation that can approximate the dynamics of the discrete time stochastic process under investigation. In this paper we present a teaching methodology that we have found useful for introducing students to the mean-field analysis, and we provide some accompanying teaching material –in the form of computer models– that other academics may want to use in their own lecturesThe authors gratefully acknowledge financial support from the Spanish JCyL (VA006B09, GR251/2009), MICINN (SICOSSYS: TIN2008-06464-C03-02; CONSOLIDER-INGENIO 2010: CSD2010-00034; DPI2010-16920) and L.R.I. from the Spanish Ministry of Education (JC2009-00263)

    Mechanical behavior of hot-mix asphalt made with recycled concrete aggregates from construction and demolition waste: a design of experiments approach

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    [Abstract:] The present work is a re-evaluation of previous research on the durability of hot-mix asphalt made with recycled concrete aggregates from construction and demolition waste (CDW) with a different approach. Response surface methodology (RSM) was used to conduct this study. The kind of natural aggregates (schist and calcite-dolomite), the recycled concrete aggregates percentage (0%, 20%, 40% and 60%) and the water saturation (0% and 100%) were the pertinent factors for this methodology. Indirect tensile stress (ITS) was determined in mixtures fabricated with 0%, 20%, 40% and 60% recycled concrete aggregates. According to the results, the ITS of the bituminous mixtures increases as the percentage of recycled concrete aggregate increases. This behavior is more significant when calcite-dolomite is used as a natural aggregate. Water saturation has the same influence in both natural aggregates. The indirect tensile strength ratio (ITSR) was calculated to evaluate the stripping potential. According to the Spanish specifications, the results suggest that the percentage of CDW that can be used for hot mixes is 17% when schist is used as natural aggregate and 14% for calcite-dolomite

    First Report of Satellite Males during Breeding in \u3cem\u3eLeptodactylus latrans\u3c/em\u3e (Amphibia, Anura)

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    Individual males can adopt alternative mating tactics. The occurrence of satellite males is a common behaviour across anuran taxa (e.g., Lithobates clamitans, Wells, 1977; Anaxyrus cognatus, Krupa, 1989; Dendropsophus ebraccatus, Miyamoto and Cane, 1980; Rhinella crucifer, Forester and Lynken, 1986). Satellite males take peripheral positions to calling males, and adopt alternate mating tactics in an attempt to intercept females that are attracted to calling males (Wells, 2007) to increase their own mating success. Satellite males could have an inexpensive form of mate-locating, avoiding predators, and saving energy (Arak, 1983). Furthermore, this strategy could play an important role in the genetic structure of populations (Lodé and Lesbarrères, 2004)

    Evaluation of the Resilient Modulus of Hot-Mix Asphalt Made With Recycled Concrete Aggregates From Construction and Demolition Waste

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    [Abstract] This paper reports the influence of the percentage of recycled aggregate (RCA) from construction and demolition waste (C&DW) together with the percentage of binder (L), curing time (t) and temperature (T) of the samples on the stiffness of a hot asphalt mixture. The study was carried out using the response surface methodology (RSM). The resilient modulus was chosen to estimate the stiffness of the mixture. The percentages of RCA studied were 0% (control), 5%, 10%, 20% and 30%, whilst 3.5%, 4% and 4.5% were those chosen for the binder content. Before compacting the samples, they were left into the oven to cure. Curing time, or pretreatment time, were set at 0 (control), 2 and 4 h. The samples were subjected to temperatures of 0, 10 and 20 °C. The natural aggregate is of the hornfels type. All the specimens studied showed high stiffness at low temperatures. According to this research, temperature proved to be the most influential factor on the decrease in the resilient modulus and, conversely, the percentage of recycled aggregate is not a significant factor in the range of values studied.Portugal. Fundação para a Ciência e Tecnologia; UIDB/04730/202

    Variabilidad de las comunidades rupícolas brio-pteridofíticas en el SO de la península Ibérica y el NO de África

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    En el presente trabajo se hace un estudio fitosociol6gico de las comunidades rupícolas brio-pteridofíticas del SO de la península Ibérica (España) y el NO de Africa (Marmecos). Como resultado, se proponen dos nuevas subasociaciones: Davallio canariensis-Sedetum baeticipsilotetosum nudi, en el sector Aljíbico, y Davallio canariensis-Sedetum baetici silenetosum rosulatae-andryalifoliae, en el sector Tangerino.In this work, a phytosociological study of rupicolous bryo-pteridophytic communities from SW Iberian Peninsula (Spain) and NW Africa (Morocco) is presented. As a result, two new subassociations are proposed: Davallio canariensis-Sedetum baetici psilotetosum nudi, in Aljibico sector, and Davallio canariensis-Sedetum baetici silenetosum rosulatae-andryalifoliae, in Tangerino sector

    Ternary Quantum Dots in Chemical Analysis. Synthesis and Detection Mechanisms

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    Ternary quantum dots (QDs) are novel nanomaterials that can be used in chemical analysis due their unique physicochemical and spectroscopic properties. These properties are size-dependent and can be adjusted in the synthetic protocol modifying the reaction medium, time, source of heat, and the ligand used for stabilization. In the last decade, several spectroscopic methods have been developed for the analysis of organic and inorganic analytes in biological, drug, environmental, and food samples, in which different sensing schemes have been applied using ternary quantum dots. This review addresses the different synthetic approaches of ternary quantum dots, the sensing mechanisms involved in the analyte detection, and the predominant areas in which these nanomaterials are usedThe authors give thanks to the CONACYT support for the grant number 771019S
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