80 results
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2. ANTONIO RAMOS, MAESTRO ARQUITECTO DE LA DIÓCESIS DE MÁLAGA. LA IGLESIA DE SAN ANTONIO DE PADUA DE ALPANDEIRE.
- Author
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Ramírez González, Sergio
- Subjects
CONSTRUCTION projects ,EIGHTEENTH century ,CATHEDRALS ,ARCHITECTS ,DECORATION & ornament ,TEMPLES - Abstract
Copyright of Imafronte. Revista de Historia del Arte is the property of Servicio de Publicaciones de la Universidad de Murcia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
3. Industrial Heritage in Malaga (Spain): Research and Education via Four Key Design Concepts.
- Author
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Cimadomo, Guido and Varagnoli, Claudio
- Subjects
INDUSTRIAL sites ,HISTORIC sites ,SUGAR factories ,ADAPTIVE reuse of buildings ,INDUSTRIAL design - Abstract
The industrial heritage in Spain, despite important advancements in the past decades, remains under-recognized, vulnerable, and inadequately appreciated. Its potential for contributing to local resilience and sustainability in the face of deindustrialization challenges is one of the best assets it has. This paper highlights the analysis of two case studies focused on the restoration of industrial heritage sites, namely the Sugar Mill "El Tarajal" in Malaga and the Trapiche del Prado in Marbella, conducted in collaboration between the University G. d'Annunzio of Chieti and Pescara and the University of Malaga. Four key concepts are identified: historical analysis and its impact on industrial evolution, production system transformations and their influence on buildings, the relationship between industry and its surroundings, and the impact of rehabilitation on the urban context. The recovery of industrial heritage goes beyond architectural preservation, emphasizing the importance of adapting these spaces for contemporary purposes and integrating modern technologies and sustainability approaches to drive socioeconomic revitalization. To address the vulnerabilities and lack of recognition faced by industrial heritage, a connection between research and education is discussed to disseminate knowledge among students and professionals in training. This approach aims to provide a more comprehensive and informed restoration process that considers the territorial scale, thereby translating assessment indicators into the design and preservation of industrial heritage sites. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. A multimethod approach to the genesis of Menga, a World Heritage megalith.
- Author
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García Sanjuán, Leonardo, Medialdea, Alicia, Balsera Nieto, Verónica, Athanassas, Constantin, Pike, Alistair, Standish, Christopher D., Dias, Maria Isabel, Luisa Rodrigues, Ana, Clavero Toledo, José Luis, Wheatley, David W., and Cintas-Peñaa, Marta
- Subjects
OPTICALLY stimulated luminescence ,WORLD Heritage Sites ,URANIUM-thorium dating ,THERMOLUMINESCENCE ,CARBON isotopes - Abstract
The scientific study of Neolithic monuments holds fundamental keys to the analysis of early social complexity. This is often impeded by the challenges involved in understanding their temporality and, particularly, their initial construction dates. This problem is most severe in monuments that were not predominantly used for burial and went on to have long biographies in which activity in later periods obliterated the material record of the earliest phases. That was certainly the case of the Menga dolmen, part of the Antequera World Heritage site (Málaga, Spain), and one of the most remarkable megaliths in Europe, for which, after nearly 200 years of explorations and research, no firm chronology existed. The research presented in this paper shows how this problem was tackled through a multimethod, scientific, and geoarchaeological approach. The analysis of 29 fresh numerical ages, including radiocarbon determinations as well as optically stimulated luminescence, thermoluminescence, and uranium-thorium dates, led to the successful establishment of Menga's construction date and the subsequent contextualization of the monument within the social and cultural background it arose in. Placing the dolmen in the context of its time of "birth" introduces entirely new possibilities for its interpretation, both in terms of local and supralocal social and cultural processes. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
5. Evaluating soil quality status of fluvisols at the regional scale: A multidisciplinary approach crossing multiple variables.
- Author
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Rodrigo‐Comino, Jesús, Keshavarzi, Ali, and Senciales‐González, José M.
- Subjects
FLUVISOLS ,SOIL quality ,SOIL profiles ,THEMATIC maps ,FLUVIAL geomorphology ,IRRIGATION water - Abstract
Rivers condition natural and human ecosystems, providing fertile soils and water for irrigation and consumption in rural and urban uses. However, the intensification of human activities and inherent environmental conditions (e.g., topography, slope or climate) are changing the sustainability of fluvial soil ecosystems. This is problematic, especially in the Mediterranean belt, because of a lack of studies at the regional scale that evaluates soils traditionally associated with rivers such as the "Fluvisols" (IUSS‐WRB). Therefore, the main aim of this paper is to understand the current status of fluvial soils in the Málaga province (Southern Spain) within the Mediterranean belt considering: (1) different thematic maps; (2) soil profiles; and (3) a soil quality index. Fluvisols of the region were assessed using fieldwork, extensive soil data sources and soil profiles including specific information on soil physicochemical properties and crossing environmental conditions. A total of 195.22 km2 of fluvisols can be found in Málaga. About 42.5% of the fluvisols are used for human activities such as agriculture (rainfed and irrigation fields, or woody crops such as olives or vineyards), mining, industries and services, urban areas or reservoirs. More than 58% of the fluvisols are located in the warmest territories registering the highest evapotranspiration rates and lowest rainfall amount. The soil quality index reaches lower scores for the fluvisols having mean values of 0.58 (1 = maximum possible score). We conclude that the characterization from a regional scale shed light on the current status of the fluvisols and possible responses against human impacts and river evolution dynamics. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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6. Nomadic knowledge in emerging pedagogical contexts: ethnographic experience in two secondary schools in Málaga, Spain.
- Author
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Cortés-González, Pablo and Rivas-Flores, José Ignacio
- Subjects
SECONDARY schools ,CURRICULUM change ,EDUCATIONAL planning ,METROPOLITAN areas ,SHARED leadership - Abstract
This paper presents a research experience in secondary schools that develop educational projects of a participatory and transformative nature. This contribution arises from the new educational needs emanating from augmented society and multiple literacies that transform communication and the circulation of knowledge, challenging conventional educational methods. An ethnography was carried out in two secondary schools, one in a rural environment and the other in a metropolitan area. The results are organised around the notion of community; the management processes and shared leadership; and the transformative pedagogical processes that are being developed. We conclude that the Spanish secondary school context is still based on practices centred on content and masterly methodologies; this leads us to understand that the mentioned schools, as disruptive experiences, promote a change towards a curriculum centred on the participation and interests of the students; horizontal and cooperative management practices; a strong sense of community; among others. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
7. GENDER DIFFERENCES IN CULTURAL TOURISM DESTINATION IMAGE: THE CASE OF MÁLAGA.
- Author
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Miguel-Barrado, Vanessa, Sánchez-Cubo, Francisco, Mondéjar-Jiménez, José, and Mondéjar-Jiménez, Juan-Antonio
- Subjects
- *
DESTINATION image (Tourism) , *HERITAGE tourism , *TOURIST attitudes , *TOURIST attractions , *STRUCTURAL equation modeling , *WORLD Heritage Sites - Abstract
Cultural tourism is one of the most sustainable and fastest-growing types of tourism, and so has been widely studied. Despite countless works analyzing the possible factors that can condition the choice of the tourist destination, few have addressed how they may differ by sex and within cultural tourism, and they contradict. This paper analyzes this phenomenon through the dimensions of cultural offerings, services and motivations in the city of Málaga, a very tourist city in Spain, which is the fourth country out of 167 with the most world heritage sites—UNESCO. Partial least squares—structural equation modeling (PLS-SEM) and importance-performance map analysis (IPMA) were performed for a database of 415 cultural tourists survey responses. The results showed differences between constructs depending on the sex of the tourists. For men, the factor that most affects the choice of destination is tourist motivation—namely, the reason for their visit—followed by services. Conversely, services are first for women, followed by cultural offerings and motivations. The results of this study can be valuable when designing more specific tourism strategies adapted to the profile of tourists. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
8. On secrecy performance of mixed α − η − μ and Málaga RF-FSO variable gain relaying channel.
- Author
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Mandira, Nandita Swanan, Kundu, Milton Kumar, Islam, Sheikh Habibul, Badrudduza, A. S. M., and Ansari, Imran Shafique
- Subjects
HETERODYNE detection ,RADIO frequency ,5G networks ,ATMOSPHERIC turbulence ,FREE-space optical technology ,SCIENTIFIC community - Abstract
With the completion of the standardization of fifth-generation (5G) networks, the researchers have begun visioning sixth-generation (6G) networks that are predicted to be human-centric. Hence, similar to 5G networks, besides high data rates, providing secrecy and privacy will be the center of attention by the wireless research community. To support the visions beyond 5G and 6G, in this paper we propose a secure radio frequency (RF)-free space optical (FSO) mixed framework under the attempt of wiretapping by an eavesdropper at the RF hop. We assume the RF links undergo α - η - μ fading whereas the FSO link exhibits a unified Málaga turbulence model with pointing error. The secrecy performance is evaluated by deducing expressions for three secrecy metrics i.e. average secrecy capacity, secrecy outage probability, and probability of non-zero secrecy capacity in terms of univariate and bivariate Meijer's G and Fox's H functions. We further capitalize on these expressions to demonstrate the impacts of fading, atmospheric turbulence, and pointing errors and show a comparison between two detection techniques (i.e. heterodyne detection (HD) and intensity modulation with direct detection (IM/DD)) that clearly reveals better secrecy can be achieved with HD technique relative to the IM/DD method. The inclusion of generalized fading models at the RF and FSO hops offers the unification of several classical scenarios as special cases thereby exhibiting a more generic nature relative to the existing literature. Finally, all the analytical results are corroborated via Monte-Carlo simulations. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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- View/download PDF
9. APPLICATION OF PHOTOGRAMMETRY AND LASER SCANNER ON THE BRONZE AGE STRUCTURES OF THE CASTILLEJOS DE LUNA CIST TOMB NECROPOLIS (PIZARRA, SPAIN).
- Author
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Muñoz-Muñoz, Alejandro, Fernández-Sánchez, Diego, Vijande-Vila, Eduardo, Becerra-Martín, Serafín, Leticia Gómez-Sánchez, María, Jesús Cantillo-Duarte, Juan, Domínguez-Bella, Salvador, Martínez Enamorado, Virgilio, Rengel Castro, Francisca, Cantalejo Duarte, Pedro, Espejo-Herrerías, María del Mar, Suárez-Padilla, José, Antonio Martín-Ruizi, Juan, and Ramos-Muñoz, José
- Subjects
TOMBS ,OPTICAL scanners ,BRONZE Age ,GRAVE goods ,ANCIENT cemeteries ,DIGITAL twins - Abstract
Copyright of Virtual Archaeology Review is the property of Virtual Archaeology Review and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
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10. Variación en la pronunciación de la/s/implosiva: datos del nivel sociocultural alto en el corpus PRESEEA-Sevilla.
- Author
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Jiménez Fernández, Rafael and León-Castro Gómez, Marta
- Subjects
PRONUNCIATION ,SOCIOLINGUISTICS ,FACTORS of production ,LANGUAGE & culture ,SOCIAL influence ,STATISTICAL correlation ,LOGISTIC regression analysis ,ASSIMILATION (Sociology) ,SOCIAL factors ,SPANISH language - Abstract
Copyright of Boletín de Filología is the property of Universidad de Chile, Facultad de Filosofia y Humanidades and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
11. Impact of a Training Programme on the e-rubric Evaluation of Gamification Resources with Pre-Service Secondary School Science Teachers.
- Author
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Franco-Mariscal, Antonio-Joaquín, Cebrián-Robles, Daniel, and Rodríguez-Losada, Noela
- Subjects
SECONDARY school teachers ,HIGH school teachers ,STUDENT teachers ,GAMIFICATION ,SERVER farms (Computer network management) - Abstract
Social constructivism is a learning approach in which students actively construct their own knowledge by way of experiences and interactions with others. As such, it is important to highlight both individual and group-based reflection practices in pre-service teacher training as a key aspect for improving teaching practice. This paper presents the results of the design and implementation of a training programme of 7 sessions (8.5 h of class participation plus 25 h of personal homework) for pre-service secondary school science teachers, who were asked to design a gamification resource and an e-rubric to evaluate it. Subsequent improvement of this e-rubric was enhanced by performing different reflection activities at key moments. The programme was carried out by 50 Spanish pre-service teachers from Málaga (Spain). Data collection centred on the e-rubrics designed, the emotions experienced and the possible transfer to real-life practice performed six months later. The impact of reflections on the evaluation was studied by analysing the evolution of the categories proposed by the participants for the e-rubric at different times, with marked changes being found during design and preparation of the gamification resource, and only very minor changes post-implementation. In addition, a group-based criteria consensus session favoured a more in-depth reflection. Interest was the main emotion experienced by pre-service teachers, especially during preparation and use of the resource. The programme also had a marked impact on transfer of the e-rubric into practice, as did the designed resource, although to a lesser extent. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
12. Performance investigation of dual-hop relaying for hybrid FSO/RF system based on optimum threshold SNR.
- Author
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Singh, Deepak Kumar and Tiwari, B. B.
- Subjects
HYBRID systems ,FREE-space optical technology ,MONTE Carlo method ,SIGNAL reconstruction ,RADIO frequency ,SIGNAL-to-noise ratio ,WEATHER - Abstract
A less-complex and efficient time-hysteresis switching algorithm assisted hybrid free-space optics (FSO)/millimeter wave (mm)-radio frequency (RF) system is presented in the paper. A time-hysteresis switching algorithm is utilized for link transient for selection of FSO or RF links. For improving the long-haul communication efficiency and coverage a selective decode-and-forward relay scheme is blended with hybrid FSO/RF system along with maximal-ratio-combining (MRC) for signal reconstruction at the receiver end. However, the pointing errors due to misalign apertures and building sway, which have the potential to suppress the benefits of the relay assisted hybrid system. The impact of pointing errors and path loss attenuation are modeled with Gamma–Gamma distribution and generalised Nakagami-m is used to model the RF channel fading. The exact closed-form expressions of average symbol-error-rate (ASER) and outage-probability (OP) have been derived for the performance evaluation of the proposed system with and without pointing errors. We also present an asymptotic-analysis of the ASER and outage with lower computational-complexity for the proposed system and obtain the diversity order. To achieve target ASER value for the proposed switching scheme, the optimum-threshold signal-to-noise ratio (SNR) value has been obtained numerically in this work. The derived theoretical outcomes have been validated with Monte-Carlo simulation. In addition, we present comparative results of ASER and OP performance for proposed system with Gamma–Gamma and generalised Málaga distribution under various adverse weather conditions. It is observed that the proposed hybrid FSO/RF system outperforms a cooperative single FSO system as well as single-hop hybrid FSO/RF system on account of diversity as well as switching technique benefits. The presented hybrid FSO/RF system achieves ASER of 10
–7 in the lower SNR regimes. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
13. Identity, language socialization, and family language policies in dialect contact: the case of Argentinean immigrants in Malaga, Spain.
- Author
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von Essen, María Clara
- Subjects
LANGUAGE policy ,FAMILY policy ,SOCIALIZATION ,SOCIOLINGUISTICS ,DIALECTS ,LINGUISTIC identity ,CHILD development - Abstract
This paper explores from a qualitative and quantitative approach, the complex interactions between second dialect accommodation or acquisition, language socialization, ideologies, family language policies, and identity, among Argentinean immigrants living in Malaga, Spain (n = 72). We found that family language policies – and more specifically mothers' language policies and their stances towards both varieties in contact – shape their children's development, connect with their formal school success, determine D1 maintenance, and even affect identity projection. We also found discrepancies between conservative family language policies and linguistic production: what families try to do with language does not always match their own linguistic performance. Through the analysis of different language components – phonological, morpho-syntactic, and lexical – we conclude that linguistic accommodation or second dialect acquisition does not always follow a linear path to assimilation, but it is related to early stages of exposure and formal education in the D2 community (optimal age acquisition period), takes place to improve mutual intelligibility, derives from both unconscious and conscious decisions to change D1, and allows speakers to showcase different identities through accommodation or divergence. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
14. Performance Study of Generalized Space Time Block Coded Enhanced Fully Optical Generalized Spatial Modulation System Based on Málaga Distribution Model.
- Author
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Wang, Yi and Zhou, Rui
- Subjects
SPACE-time block codes ,GENERALIZED spaces ,SPATIAL systems ,ATMOSPHERIC turbulence ,OPTICAL modulation - Abstract
This paper proposes a generalized space time block coded (GSTBC) enhanced fully optical generalized spatial modulation (EFOGSM) system based on Málaga (M) turbulent channel. GSTBC-EFOGSM adopts the hybrid concept of generalized space time block coded and optical spatial modulation to further utilize the high transmission rate of EFOGSM and the diversity advantage of GSTBC in free space optical (FSO) communication systems. Considering the combined effects of path loss, pointing error and atmospheric turbulence, the Meijer G function is used to derive the closed-form expression for the average bit error rate (ABER) of GSTBC-EFOGSM. Then, the ABER performance, data transmission rate, energy efficiency and computational complexity at the receiver of GSTBC-EFOGSM are compared with other optical spatial modulation schemes by simulation. In addition, the effects of key factors, such as data transmission rate, encoding ratio, number of photodetectors and modulation order, on the ABER performance of the system are also analyzed via simulation. Monte Carlo (MC) simulation is used to verify the correctness of the numerical simulation. The simulation results show that the GSTBC-EFOGSM system has better ABER performance and good performance gain. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
15. El derecho a la asistencia sanitaria en la Seguridad Social.
- Author
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MALDONADO MOLINA, JUAN ANTONIO
- Subjects
SOCIAL security ,LABOR laws ,SANATORIUMS ,SECURITIES industry laws ,MEDICAL care - Abstract
Copyright of Revista de Derecho de la Seguridad Social, Laborum is the property of Ediciones Laborum S.L. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
16. Analysing the acceptance of autonomous buses in real-life traffic environments: pilot project with tourists in Malaga, Spain.
- Author
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Ariza-Álvarez, Amor, López-Lambas, M. Eugenia, and Soria-Lara, Julio A.
- Subjects
PILOT projects ,SATISFACTION ,BUSES ,TOURISTS ,PUBLIC transit ,TECHNOLOGICAL progress ,BUS transportation - Abstract
Despite the significant technological progress with Autonomous Buses (ABs), there is still a limited understanding how users perceive and experience large, mass transit ABs in real-life traffic environments. This paper follows a pilot project on AB use by tourists in the city of Malaga, Spain. Discrete choice analysis was employed to study their willingness to use the AB and the passengers' actual satisfaction on board the AB. The obtained results reveal higher willingness levels to adopt ABs among individuals more open to new technologies and more environmentally conscious. Higher levels of satisfaction on board are reported by older passengers, women, employed, private vehicle users, and people with environmental consciousness and openness to new technologies. Finally, the research discusses how socio-demographics and personality-related barriers affect the further implementation of autonomous mobility in public transportation systems, adding new reflections on the capacity of ABs to support or even replace conventional buses. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
17. FACULTY OF PSYCOLOGY OF MÁLAGA, SPAIN. COMPOSITE STEEL‐CONCRETE STRUCTURE IN A SINGULAR BUILDING.
- Author
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Gómez, Javier, Sáez, Isabel, and Bernabeu, Alejandro
- Subjects
STEEL-concrete composites ,COMPOSITE structures ,COMPOSITE columns ,MODULARITY (Psychology) - Abstract
The paper presents the design and construction of the new Faculty of Psychology in Málaga, Spain, by LLPS Architects. The project offers an interesting example of the relation between structure and architecture, based on a singular configuration of a composite steel‐concrete structure, which responds in a coherent and attractive way to the architectural configuration. The building is formed by a massive and compact three‐heights volume of 90x100 m. Two main architectural features determine the structural configuration: the interior courtyards, that measure 18x3 m., and are disposed in staggered arrangement to allow the entrance of natural light; and the cantilever of the above‐ground volume, that creates a large column‐free covered space. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
18. Servicios mudéjares y redención de cautivos cristianos en el obispado de Málaga (1488-1497).
- Author
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López de Coca Castañer, José Enrique
- Subjects
RANSOM ,PUNISHMENT ,PARDON ,DIOCESES ,PRISONERS ,PRISONERS of war ,PAY for performance - Abstract
Copyright of En la España Medieval is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
19. LA FORMACIÓN EN CENTRO DEL PROFESORADO NO UNIVERSITARIO: MODALIDAD FUNDAMENTAL EN SU FORMACIÓN PERMANENTE.
- Author
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ALONSO-BRIALES, Mariana and VERA-VILA, Julio
- Subjects
TEACHER development ,LEARNING ,EDUCATIONAL change ,EDUCATIONAL planning ,EDUCATIONAL innovations ,JOB qualifications - Abstract
Copyright of Teoría de la Educación. Revista Interuniversitaria is the property of Ediciones Universidad de Salamanca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
20. Research on uplink performance of MIMO terrestrial-satellite laser communication based on OSM-MBM joint modulation.
- Author
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Wang, Haibo, Wang, Qianqian, and Wang, Yi
- Subjects
LASER communication systems ,OPTICAL modulation ,TELECOMMUNICATION satellites ,BIT error rate ,OPTICAL communications ,ZENITH distance ,LASERS ,MIMO radar - Abstract
This paper proposes a multiple-input multiple-output (MIMO) terrestrial-satellite laser communication uplink system based on optical spatial modulation with medium-based modulation (OSM-MBM) joint modulation. The Málaga(M) distribution is used to describe the combined effects of near-ground turbulent light intensity scintillation, beam wander and angle of arrival fluctuation. The closed expression of the bit error rate (BER) of the OSM-MBM joint modulation MIMO terrestrial-satellite laser communication uplink is derived. The simulation analyzes the influence of transmitting radius, receiving aperture, beam divergence, zenith angle and signal-to-noise ratio on the system error performance, and compares it with traditional modulation, media-based modulation and optical space modulation. Finally, the experiment is verified by Monte Carlo. This research provides a theoretical reference for the engineering realization of the modulation technology for the MIMO terrestrial-satellite laser communication uplink system. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
21. Double relay selection for combating the impact of interference and hardware impairments in mixed RF/FSO two way relay networks.
- Author
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Goel, Anu and Bhatia, Richa
- Subjects
ATMOSPHERIC turbulence ,SIGNAL-to-noise ratio ,RAYLEIGH model ,LINEAR network coding ,RADIO frequency - Abstract
In this paper, investigation of mixed radio frequency (RF)/ free space optical (FSO) decode and forward (DF) two way relaying (TWR) has been performed. It has been assumed that the relay hardwares involved are prone to aggregated hardware impairments and operate near the vicinity of multiple co-channel interferers (CCIs). In order to combat the impact of hardware impairment and interference, double relay selection scheme has been employed in the system model. Therefore, the cooperation between the RF and FSO source nodes takes place in two different paths to establish TWR. The fading characteristics of the RF and CCI links have been modeled using the Rayleigh distribution. The atmospheric turbulence on the FSO link has been assumed to undergo Malaga irradiance model. For the considered system, analysis of outage probability has been performed. In fact, the closed-form for the outage probability has been derived in terms of Meijer-G function. The derived expressions are then approximated for the high signal to noise ratio (SNR) by exploiting the asymptotic analysis of outage probability. Results are present to confirm that the reliability of the communication channel is impacted by number of nodes available for selection, type of optical demodulation, atmospheric turbulence, pointing error, interference and hardware impairment. The analytical results are confirmed using the Monte-Carlo simulations. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
22. Polyhedra and Honeycombs in a Coffered Ceiling in the Picasso Museum in Malaga.
- Author
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Redondo Buitrago, Antonia
- Subjects
HONEYCOMB structures ,CEILINGS ,MUSEUMS ,GENERALIZATION ,CUBES - Abstract
This paper reflects upon the remarkable ceiling of the Picasso Museum in Malaga, an example of the wooden coffered ceilings built during the early Renaissance in Spain. The unusual design of the ceiling is based on octagons surrounded by four-pointed stars. This is used as the point of departure for a mathematical investigation of polyhedral forms. Two different polyhedra are constructed, conceived in such a way that the honeycombs generated by them, can be considered a polyhedral generalization of the planar pattern of regular octagons and four-pointed stars. Both are constructed by means of special truncations of a cube. The truncation procedure is extended to construct a polyhedral generalization of the planar pattern of four-pointed stars and 45° rhombuses; in this case, the polyhedron obtained is a variation of one of the star polyhedra drawn by Jamnitzer. The geometric honeycombs thus defined could be used as models for new designs. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
23. Performance Analysis of Dual-Hop RF/FSO Relaying Systems With Imperfect CSI.
- Author
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Zhang, Zihan, Sun, Qiang, Lopez-Benitez, Miguel, Chen, Xiaomin, and Zhang, Jiayi
- Subjects
DECODE & forward communication ,PROBABILITY density function ,CUMULATIVE distribution function ,SYMBOL error rate ,MATHEMATICAL analysis ,SIGNAL-to-noise ratio ,KEY performance indicators (Management) ,RADIO frequency - Abstract
This paper proposes a unified performance analysis framework of asymmetric dual-hop radio-frequency/free-space optical (RF/FSO) transmission systems. The generalized independent and identically distributed (i.i.d.) $\alpha -\mu$ distribution is considered for each branch in the RF link, whereas the FSO link is assumed to experience Málaga ($\mathcal {M}$) fading with pointing error impairments. With amplify-and-forward (AF) and decode-and-forward (DF) relaying, the imperfect channel state information (CSI) of both links is considered. For the considered system, we first derive exact and novel analytical expressions for the probability density function (PDF) and cumulative distribution function (CDF) of the end-to-end signal-to-noise ratio (SNR). Furthermore, we obtain key performance metrics such as outage probability (OP), average bit-error-rate (ABER), and effective capacity (EC). The important effects of channel parameters on the system are disclosed from mathematical analysis and are further validated by Monte-Carlo simulations. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
24. Magnates, crédito y desposesión en Vélez-Málaga (1487-1523): una primera aproximación.
- Author
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Díaz Sierra, Juan Manuel
- Subjects
COLONIES ,SOCIAL action ,PROLETARIANIZATION ,FOOD security ,LANDOWNERS ,DEBT - Abstract
Copyright of En la España Medieval is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
25. PROSPECCIONES SUBACUÁTICAS EN LA COSTA DE MAZARRÓN (MURCIA), 2015-2020.NOVEDADES SOBRE LA IMPLANTACIÓN FENICIA EN EL SURESTE.
- Author
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Pinedo Reyes, Juan, Jiménez Vialás, Helena, Martínez García, José Javier, and Lajara Martínez, José
- Subjects
COLONIZATION ,ANCHORAGE ,TIME management ,UNDERWATER archaeology ,STRAITS ,SHIPWRECKS - Abstract
Copyright of Espacio, Tiempo y Forma: Serie I, Prehistoria y Arqueología is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
26. La crisis finisecular del vino de Málaga. Cambio del modelo de producción y caída del comercio (1878- 1933).
- Author
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PÉREZ HIDALGO, FRANCISCO MANUEL
- Subjects
WINE making ,WINE districts ,WINE industry ,PHYLLOXERA ,COMMERCE ,GROSS domestic product ,WINE tasting ,PROVINCES - Abstract
Copyright of Investigaciones Historicas is the property of Universidad de Valladolid, Facultad de Filosofia y Letras and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
27. MIMO Hybrid FSO/RF System Over Generalized Fading Channels.
- Author
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Sharma, Shubha, Madhukumar, AS, and R, Swaminathan
- Subjects
SYMBOL error rate ,RADIO frequency ,HYBRID systems ,CUMULATIVE distribution function ,PROBABILITY density function ,FREE-space optical technology ,ATMOSPHERIC turbulence ,MIMO systems - Abstract
Free-space optics (FSO) communication is often unreliable, especially for long distances, as it suffers from attenuation due to foggy weather, atmospheric turbulence, and pointing errors. To avoid communication link failure, radio frequency (RF) communication, which is unaffected from these effects, is utilized when FSO communication is in outage. Diversity is known to counteract the adverse fading effects, therefore, this paper presents a transmit aperture/antenna selection (TAS) and selection combining (SC)-based multiple-input-multiple-output (MIMO) hybrid FSO/RF system. The proposed system consists of a MIMO FSO and RF sub-systems. The MIMO FSO sub-system is given higher priority to transmit and receive using the selected best link. The best link of the MIMO RF sub-system is used when the FSO sub-system is in outage. The probability density function (PDF) and cumulative distribution function (CDF) expressions for TAS/SC-based MIMO FSO and RF sub-systems are derived. The derived PDF and CDF expressions are used further to derive the exact and asymptotic expressions for outage probability, average symbol error rate (SER), and capacity of the hybrid system. From the asymptotic SER expressions, the diversity order of the proposed system is determined. The optimum values for the threshold SNR and transmit beam waist, which minimize the average SER, are obtained. Further, the obtained optimal values using analytical expressions are verified using numerical optimization technique. The effect of multiple apertures/antennas, pointing errors, and atmospheric attenuation over the system performance is analyzed extensively by varying the FSO and RF channel parameters. The results show that the proposed hybrid FSO/RF system is more reliable compared to the individual MIMO FSO and RF systems and achieves higher capacity compared to the MIMO RF system. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
28. Impact of a peer-to-peer escape room activity in the learning of Human Physiology of medical students from the university of Málaga.
- Author
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Carrasco-Gomez, D., Chao-Écija, A., López-González, M. V., and Dawid-Milner, M. S.
- Subjects
LEARNING ,ESCAPE rooms ,MEDICAL students ,HUMAN physiology ,ACTIVE learning ,UNDERGRADUATES ,INTERPROFESSIONAL education - Abstract
Escape room's popularity has raised over the past years among young adults. It creates a distended competitive environment, where participants collaborate to achieve a common objective through teamwork. We decided to apply this format as a teaching method for medical students at the University of Malaga, Spain. A peer-to-peer physiological cardiorespiratory escape room was designed by intern undergraduate students, collaborating within the Department of Human Physiology. This activity integrated the contents of the Human Physiology syllabus, which were organized into four stages that culminated in a final medical case. Intern students oversaw the design, promotion, preparation and execution of the activity, and were in charge of conducting the evaluation and follow up. The escape room was done in mid-December, after all theoretical and practical contents had been delivered, for four consecutive years, improving from each year's experience. The target group for this activity were second year medical students, who were asked to team up freely in groups of four to six students before the start of the activity. The students in each group cooperated with each other while trying to solve the different puzzles and questions in each stage of the escape room. After the activity, the results of the final evaluation exam of these participants were compared against non-participants, who served as a control group. Qualitative feedback was also received from the participants via a special survey that was designed for this task. Results between 2020 and 2023 (three last activities) show that the final mark of the participants was significantly higher than in non-participants (6.39 ± 0.14 vs. 5.04 ± 0.2; p < 0.0007). The global exam mark also increased in the participants (5.43 ± 0.10 vs. 4.44 ± 0.15; p < 0.0007). A significant difference was observed in the performance in cardiovascular (p < 0.0007) and respiratory-related questions (p < 0.0007), which was substantial in the participants. The qualitative feedback received from the participants was mainly positive, indicating an overall acceptance of the format by the students. We conclude that escape room format with a peer-to-peer structure is an efficient teaching tool for medical students performed by medical students in the field of Human Physiology. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
29. La dirección escolar en la normativa vigente de la provincia de Córdoba.
- Author
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Yelicich, Carolina
- Subjects
HIGH school principals ,TEAMS in the workplace ,URBAN schools ,INFORMATION resources ,EDUCATIONAL law & legislation - Abstract
Copyright of Diálogos Pedagógicos is the property of Universidad Catolica de Cordoba and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
- Full Text
- View/download PDF
30. SEVERO DE MÁLAGA, UN OBISPO DE LA HISPANIA BIZANTINA.
- Author
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Jiménez Sánchez, Juan Antonio and Maymó Capdevila, Pere
- Subjects
BYZANTINE Empire ,BIOGRAPHY (Literary form) ,SCARCITY - Abstract
Copyright of Espacio, Tiempo y Forma. Serie III, Historia Medieval is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
31. CARACTERIZACIÓN Y EVOLUCIÓN DEL SISTEMA PLAYA-DUNA DE LA COSTA MEDITERRÁNEA DE ANDALUCÍA (ESPAÑA): INFLUENCIA DE PROCESOS NATURALES Y ACTUACIONES ANTRÓPICAS.
- Author
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MOLINA-GIL, ROSA, MANNO, GIORGIO, RE, CARLO LO, and ANFUSO, GIORGIO
- Subjects
BEACH erosion ,COASTAL sediments ,TROPICAL storms ,SEDIMENT transport ,CLIMATE change ,SAND dunes ,COASTAL development - Abstract
Copyright of Cuadernos de Investigación Geográfica is the property of Universidad de la Rioja, Servicio de Publicaciones and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
32. Seasonal and Morphology Effects on Bioactive Compounds, Antioxidant Capacity, and Sugars Profile of Black Carrot (Daucus carota ssp. sativus var. atrorubens Alef.).
- Author
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Ordóñez-Díaz, José Luis, Velasco-Ruiz, Isabel, Velasco-Tejero, Cristina, Pereira-Caro, Gema, and Moreno-Rojas, José Manuel
- Subjects
OXIDANT status ,BIOACTIVE compounds ,CARROTS ,HYDROXYCINNAMIC acids ,SUGARS ,PHENOLS ,LIQUID chromatography-mass spectrometry - Abstract
Black carrot (Daucus carota ssp. sativus var. atrorubens Alef.) is widely recognized for its bioactive compounds and antioxidant properties. The black carrot of Cuevas Bajas (Málaga) is a local variety characterized by a black/purple core, which differs from other black carrot varieties. Therefore, this autochthonous variety was characterized according to the root size and the harvesting season by means of a study of its antioxidant capacity analyzed by three methods, its total carotenoids content, and its sugars and phenolic compounds profile by ultra-high performance liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-MS). A total of 20 polyphenolic compounds were quantified in 144 samples analyzed. The anthocyanidins group was observed to be the most abundant, followed by the hydroxycinnamic acids group. Moreover, pelargonidin 3-sambubioside was observed in black carrot for the first time. The medium-sized carrots presented the highest content of phenolic compounds, largely due to their significantly higher anthocyanidins content. Comparatively, the small carrots showed a higher content of simple sugars than the large ones. Regarding the influence of season, significantly higher quantities of glucose and fructose were observed in the late-season carrots, while sucrose was the main sugar in early-season samples. No significant differences were observed in the total carotenoid content of black carrot. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
33. Aedes albopictus in a recently invaded area in Spain: effects of trap type, locality, and season on mosquito captures.
- Author
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Garrido, Mario, Veiga, Jesús, Garrigós, Marta, Morales-Yuste, Manuel, Recuero-Gil, Jesús, and Martínez-de la Puente, Josué
- Subjects
AEDES albopictus ,AEDES aegypti ,CHIKUNGUNYA virus ,MOSQUITOES ,METROPOLITAN areas ,INTRODUCED species ,CULEX pipiens ,SPECIES distribution - Abstract
Mosquitoes are primary vectors of pathogens impacting humans, wildlife, and livestock. Among them, the Asian tiger mosquito, Aedes albopictus, stands out as an invasive species with a global distribution, having established populations on every continent except Antarctica. Recent findings incriminate Ae. albopictus in the local transmission of several pathogens causing human diseases, including dengue, chikungunya, and Zika viruses and worm parasites as Dirofilaria. In Spain, the establishment of Ae. albopictus occurred in 2004 and it rapidly expanded, currently reaching southern provinces and creating novel epidemiological scenarios in recently invaded areas. In this study, we conducted captures of Ae. albopictus from May to November 2022 in two provinces, Granada and Malaga, situated near the current edge of the species' expanding range in Spain. The objective was to identify the primary factors influencing their captures in these regions. Mosquitoes were captured using BG-Sentinel traps baited with CO
2 and BG-Lure, and miniature CDC-UV traps in five different localities. Our findings underscore the influence of both extrinsic factors, such as locality, and intrinsic factors, including mosquito sex, on the abundance of captured Ae. albopictus. A higher abundance of Ae. albopictus was observed in the Malaga province compared to localities in the Granada province. Furthermore, similar numbers of Ae. albopictus mosquitoes were captured in more urbanized areas of Granada, while the lowest counts were recorded in the less urbanized area. These results were compared to captures of another common species in the area, specifically Culex pipiens. Overall, these results represent the first monitoring of invasive Ae. albopictus in the area and are discussed in the light of the potential importance of the species as a nuisance for humans and vectors of pathogens of public health relevance. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
34. Terrestrial Alien Flora of the Iberian Alboran Coast: Assessment, Attributes, and Future Implications.
- Author
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Goncalves, Estefany, Casimiro-Soriguer Solanas, Federico, García-Caballero, Javier, and Hidalgo-Triana, Noelia
- Subjects
BOTANY ,ORNAMENTAL plants ,PLANT diversity ,INTRODUCED species ,SPECIES diversity ,OPUNTIA ficus-indica ,INVASIVE plants ,COASTS - Abstract
Although Mediterranean coastal regions in southern Spain have high floristic diversity and numerous Habitats of Community Interest (HCIs) identified by the European Union Directive Council, they are also vulnerable to invasive plants. In our study, we aimed to create a checklist of terrestrial alien taxa in the Iberian area of the Alboran coast, assess each species' current invasion, analyse the influence of environmental attributes on invasion, estimate the richness of alien species per HCI group, and evaluate each species' potential invasiveness based on its reproductive and dispersal attributes. The checklist that we developed includes 123 alien taxa, most belonging to the Asteraceae, Asparagaceae, and Poaceae families. Notably, 20% of the species are super invaders that occupy more than 20% of HCIs. We also identified Aloe vera, Cylindropuntia spp., Agave salmiana, Opuntia spp., and Paspalum spp. as incipient invaders with the potential for future expansion. Although most alien flora in the HCIs are not regulated by Spanish legislation (RDL 630/2013), monitoring and eradication plans are crucial. Advocating the cessation of using those plants in gardens and reducing anthropogenic pressure are also essential, as human activities worsen invasion dynamics and facilitate the introduction and establishment of invasive species. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
35. The Death Taboo: Euphemism and Metaphor in Epitaphs from the English Cemetery of Malaga, Spain.
- Author
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Crespo-Fernández, Eliecer
- Subjects
EUPHEMISM ,TABOO ,METAPHOR ,MORTALITY ,CEMETERIES ,WESTERN society - Abstract
In spite of the fact that taboos change over time, death is still a delicate and sensitive subject in today's Western societies. Our unwillingness to talk openly about death and dying makes people resort to euphemism as a safe way to talk about human mortality and related matters. Following Steen's Deliberate Metaphor Theory, this study discusses the role that euphemistic metaphors play on a sample of 174 gravestone inscriptions from the English Cemetery of Malaga, the oldest Protestant cemetery in Spain, and, at the same time, examines the social and cognitive aspects of metaphor in epitaph writing. The analysis carried out reveals that most of the 96 metaphorical items observed in the gravestone inscriptions present positive connotations. Indeed, the source domains of rest, peace, new life and journey offer an optimistic and comforting approach to death and dying, whereas the domains of loss and separation refer to the target domain of death in negative terms. All in all, the metaphors encountered in the epitaphs are deliberately used both to help the bereaved confront the loss of a loved one and pay tribute to the deceased. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
36. Learning About the Incidence and Lethality of COVID-19 in Vulnerable Neighborhoods: The Case of Malaga (Spain).
- Author
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García-Peña, Carmen, Molina, Julián, and Ruiz Sinoga, José Damián
- Subjects
COVID-19 pandemic ,COVID-19 ,CLUSTER analysis (Statistics) ,CENSUS ,SUSTAINABLE development ,NEIGHBORHOODS - Abstract
This research delves into the need to use granular analyses at the neighborhood level to study the preexisting conditions of vulnerability that best explain the waves of COVID-19 incidence and mortality. It seems most appropriate to use the comprehensive approach of the sustainable development with variables that analyze the economic, social, environmental, and governance dimensions, given the extensive literature that identifies each as a determining factor for the impact of disease. The work utilizes a composite vulnerability index that allows the city of Malaga to be divided into 434 census sections; waves of incidence and mortality for each section are constructed for the period of March 2020 to March 2021. Cluster analysis reveals that there are five different cluster incidence patterns, whereas the lethality waves are found to behave as a hot-spot phenomenon. The results reveal that neighborhoods that are the most vulnerable in terms of their demographic conditions (large proportion over 65 years of age and dependent) and socioeconomic conditions (severe material deprivation), have been the most affected by COVID-19 infection and mortality. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
37. Synthesis of a novel magnetic nanomaterial for the development of a multielemental speciation method of lead, mercury, and vanadium via HPLC-ICP MS.
- Author
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Montoro-Leal, Pablo, García-Mesa, Juan Carlos, Morales-Benítez, Irene, Vázquez-Palomo, Laura, López Guerrero, María del Mar, and Vereda Alonso, Elisa I.
- Subjects
MAGNETIC nanoparticles ,MERCURY ,VANADIUM ,INDUCTIVELY coupled plasma mass spectrometry ,CHEMICAL speciation ,GENETIC speciation ,HIGH performance liquid chromatography ,NANOSTRUCTURED materials - Abstract
A new magnetic functionalized material based on graphene oxide magnetic nanoparticles named by us, M@GO-TS, was designed and characterized in order to develop a magnetic solid-phase extraction method (MSPE) to enrich inorganic and organic species of lead, mercury, and vanadium. A flow injection (FI) system was used to preconcentrate the metallic and organometallic species simultaneously, while the ultra-trace separation and determination of the selected species were achieved by high-performance liquid chromatography coupled to inductively coupled plasma mass spectrometry (HPLC-ICP MS). Therefore, preconcentration and separation/determination processes were automated and conducted separately. To the best of our knowledge, this is the first method combining an online MSPE and HPLC-ICP MS for multielemental speciation. Under the optimized conditions, the enrichment factor obtained for Pb
II , trimethyllead (TML), HgII , methylmercury (MetHg), and VV was 27. The calculated LOD for all studied species were as follows: 5 ng L−1 , 20 ng L−1 , 2 ng L−1 , 10 ng L−1 , and 0.4 ng L−1 , respectively. The RSD values calculated with a solution containing 0.5 μg L−1 of all species were between 2.5 and 4.5%. The developed method was validated by analyzing Certified Reference Materials TMDA 64.3 for total concentration and also by recovery analysis of the species in human urine from volunteers and a seawater sample collected in Málaga. The t statistical test showed no significant differences between the certified and found values for TMDA 64.3. All the recoveries obtained from spiked human urine and seawater samples were close to 100%. All samples were analyzed using external calibration. The developed method is sensitive and promising for routine monitoring of the selected species in environmental waters and biological samples. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
38. Analysis of selection combining hybrid FSO/RF systems considering physical layer security and interference.
- Author
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Liang, Haodong, Li, Yiming, Miao, Maoke, Gao, Chao, and Li, Xiaofeng
- Subjects
- *
RADIO interference , *HYBRID systems , *RADIO frequency , *TELECOMMUNICATION systems , *SYMBOL error rate , *TRANSMITTERS (Communication) , *PHYSICAL layer security - Abstract
This paper investigates the hybrid free-space optical (FSO)/radio-frequency (RF) communication system under the influence of non-cooperative target (NCT) which includes eavesdropping the legitimate transmitters and jamming the legitimate receivers. The FSO link and RF link are modeled by Málaga(M) distribution and Nakagami-m distribution respectively. Both yield excellent fit experimental data as unified fading model. Pointing error, which is an indispensable parameter of FSO link, is also considered. Selection combining technique is adopted at the receiver which does not need channel state information at the transmitter. The closed-form expressions for outage probability, average bit error and secrecy outage probability are derived and simulated in this paper. Furthermore, asymptotic performance of the hybrid RF/FSO system is analyzed. The results show that hybrid system shows superior performance than FSO links even if the radio frequency interference exists. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
39. Territorial planning of rustic land constructions and their adaptation to climate change in the province of Málaga, Spain.
- Author
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Crespo, Ana, Velázquez, Javier, Herráez, Fernando, Gülçin, Derya, Özcan, Ali Ugur, Hernando, Ana, and Castanho, Rui Alexandre
- Subjects
CLIMATE change ,LAND use planning ,GOVERNMENT policy on climate change ,TIME perspective ,RISK assessment - Abstract
Incorporating risk analysis into physical planning is increasingly necessary to anticipate and take appropriate measures to prevent and defend against disasters. This paper extends the concept of carrying capacity by studying two models: an ecosystem-bringing capacity model and a territorial model of construction on rural land. A climate change variable was integrated into both models, and the changes that occurred depending on the emissions scenario and the time horizons were considered for developing the suitability, impact, and risk models. The data obtained in this study give us an idea of the difficulties that may exist in most of the territory for the construction location on rural land. In fact, only 14% of the occupied study area reaches positive values for the carrying capacity of ecosystems; besides, there are no constructions on rural land located on positive values if we include the risks in the planning. Contextually, assigning a value to the comparable carrying capacity, based on a holistic conception of planning and scientific data, can facilitate the decision-making to initiate future studies and work. Moreover, this study enables to anticipate the effects of climate change when drawing up adaptation and mitigation policies, plans, or programs. • Incorporating risk analysis into physical planning can prevent disasters. • Ecosystem-bringing capacity model and territorial model of construction is studied. • This study enables to anticipate the effects of climate change for land policies. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
40. LA SEÑALIZACIÓN LUMÍNICA Y LA NAVEGACIÓN POR EL ESTRECHO DE GIBRALTAR EN LA BAETICA ROMANA: UN PANORAMA CON MÁS SOMBRAS QUE LUCES.
- Author
-
Marfil, Francisco
- Subjects
GEOGRAPHIC information systems ,URBAN planning ,UNDERWATER archaeology ,PORT cities ,REFERENCE sources ,BIBLIOGRAPHY - Abstract
Copyright of Virtual Archaeology Review is the property of Virtual Archaeology Review and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
41. Life Satisfaction and Psychological Distress of African Immigrants in Italy and Spain: The Protective Role of Social Support and Sense of Community.
- Author
-
Novara, Cinzia, Moscato, Gianluigi, Gomez-Jacinto, Luis, Hombrados-Mendieta, Isabel, Varveri, Loredana, Rochira, Alessia, and Garro, Maria
- Subjects
AFRICANS ,LIFE satisfaction ,SOCIAL support ,COMMUNITY support ,FRIENDSHIP ,PSYCHOLOGICAL distress ,SUPPORTED employment ,UNEMPLOYMENT - Abstract
This article analyzes whether migrants' distress factors are reduced, and life satisfaction increased by the sense of community and support from friendship or family networks, with age and length of residence serving as co-variables. Host country, gender, migration (economic/non-economic), employment (employed/unemployed) and legal status (regulated/unregulated) were all treated as moderating variables. We tested this theoretical model in two samples of African immigrants residing in Palermo (Italy) and Malaga (Spain), confirming the predictive capacity of the independent variables. Interesting results emerged relating to the effects of length of residence, employment status and support from immigrant friends. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
42. The Novel Variant NP_00454563.2 (p.Glu259Glyfs*77) in Gene PKP2 Associated with Arrhythmogenic Cardiomyopathy in 8 Families from Malaga, Spain.
- Author
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Robles-Mezcua, Ainhoa, Ruíz-Salas, Amalio, Medina-Palomo, Carmen, Robles-Mezcua, María, Díaz-Expósito, Arancha, Ortega-Jiménez, María Victoria, Gimeno-Blanes, Juan Ramón, Jiménez-Navarro, Manuel F., and García-Pinilla, José Manuel
- Subjects
CARDIOMYOPATHIES ,ARRHYTHMIA ,GENETIC carriers ,GENETIC testing ,GENETIC variation ,PROGRESSION-free survival ,GENETIC disorders - Abstract
Introduction and objectives: Arrhythmogenic cardiomyopathy (ACM) is a hereditary heart disease defined by the progressive replacement of the ventricular myocardium with fibroadipose tissue, which can act as a substrate for arrhythmias, sudden death, or even give rise to heart failure (HF). Sudden death is frequently the first manifestation of the disease, particularly among young patients. The aim of this study is to describe a new pathogenic variant in the PKP2 gene. Methods: A descriptive observational study that included eight initially non-interrelated families with a diagnosis of ACM undergoing follow-up at our HF and Familial Cardiomyopathies Unit, who were carriers of the NM_004572.3:c.775_776insG; p.(Glu259Glyfs*77) variant in the PKP2 gene. The genetic testing employed next-generation sequencing for the index cases and the Sanger method for the targeted study with family members. We compiled personal and family histories, demographic and clinical characteristics, data from the additional tests at the time of diagnosis, and arrhythmic events at diagnosis and during follow-up. Results: We included 47 subjects, of whom 8 were index cases (17%). Among the evaluated family members, 16 (34%) were carriers of the genetic variant, 3 of whom also had a diagnosis of ACM. The majority were women (26 patients; 55.3%), with a mean age on diagnosis of 48.9 ± 18.6 years and a median follow-up of 39 [24–59] months. Worthy of note are the high incidences of arrhythmic events as the form of presentation and in follow-up (21.5% and 20.9%, respectively), and the onset of HF in 25% of the sample. The most frequent ventricular involvements were right (four patients, 16.7%) and biventricular (four patients, 16.7%); we found no statistical differences in any of the variables analysed. Conclusions: This variant is a pathogenic variant of gene PKP2 that has not previously been described and is not present in the control groups associated with ACM. It has incomplete penetrance, a highly variable phenotypic expressivity, and was identified in eight families of our geographical area in Malaga (Andalusia, Spain), suggesting a founder effect in this area and describe the clinical and risk characteristics. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
43. Wine tourism and COVID-19: impacts and responses from the Ronda-Málaga wine route's wineries.
- Author
-
Cerezo-Medina, Alfonso, Peláez-Verdet, Antonio, Gaspar-González, Ana Isabel, and Martín-Rojo, Inmaculada Concepción
- Subjects
WINE tourism ,COVID-19 pandemic ,WINE tasting ,TOURISM impact ,COVID-19 ,FOOD tourism - Abstract
Wine tourism is a subsector of gastronomic tourism that, according to the World Tourism Organisation, has been increasingly in demand among visitors worldwide. Spain is one of the three countries with the highest global wine production and has an outstanding wine-growing tradition, but the country has had to deal with one of the most significant challenges in recent times: the coronavirus disease-19 pandemic. This study analyzed the crisis's impacts on wine tourism along the Ronda and Malaga Wine Route, winemakers' perceptions of these effects, and how wineries reacted. Exploratory qualitative methods research was carried out using a combination of primary and secondary sources, identifying several strategies to tackle the crisis, such as online tastings or activities outdoors. The results were compared to other studies that have also sought to analyse wineries' recovery strategies associated with the pandemic showing that measures taken by wineries were similar to the ones used in other parts of the world and very similar to those applied in previous health crises. The results partly corroborate the trends identified by the UNWTO as no significant recovery was reported for the wine tourism sector. The findings have practical implications that can help wine tourism providers improve their resilience in extreme situations or future crises. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
44. The Desalting Process for Table Olives and Its Effect on Their Physicochemical Characteristics and Nutrient Mineral Content.
- Author
-
López-López, Antonio, Moreno-Baquero, José María, and Garrido-Fernández, Antonio
- Subjects
OLIVE ,MINERALS ,LACTIC acid ,INFORMATION design - Abstract
The desalting process is critical for packaging table olives in brine with reduced NaCl or fortified mineral nutrients. In this study, the effect of desalting on the physicochemical characteristics and mineral content of green Manzanilla Spanish-style (plain and stuffed with pepper paste) and DOP Aloreña de Málaga table olives was investigated for the first time. The surface colour of the fruits turned slightly brownish, and the olives became somewhat softer. The lactic acid, the mineral macronutrients (mainly) and micronutrient contents decreased, while flesh moisture increased. The kinetic parameters of the minerals' losses depended on the presentation, with the estimated values for plain olives being the lowest (slowest desalting). Overall, the desalting process resulted in slight quality damage and a moderated decrease in the mineral concentration in the flesh, leading to some product degradation. This study provides quantitative information on these changes that may affect the commercial value of the final products and offers information for viable designs. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
45. The intention of consumers to use augmented reality apps in gastronomy – case of Málaga.
- Author
-
Calderón-Fajardo, Víctor, Carrasco-Santos, María Jesús, and Rossi Jiménez, Carlos
- Subjects
AUGMENTED reality ,CONSUMER behavior ,GENERATION Z consumers ,MOBILE apps ,SOCIAL influence ,PERCEIVED benefit ,EXPECTANCY theories - Abstract
The intention of consumers to use mobile applications with augmented reality is analyzed in order to assess which variables have the greatest influence on their use by consumers. The UTAUT-2 model has been used, analyzing: performance expectancy, effort expectancy, social influence, hedonic motivation, price value, facilitating conditions, habit and behavioural intention. The results show that predictors of a more social nature, such as aspects associated with perceived enjoyment: habits and social influence are not supported. Also, the hypothesis on the value of price could not be supported; since most augmented reality applications are free, although it is a variable that exerts a positive influence on the intention to use because of the perceived benefits. The demographic profiles of consumers can also become important predictors when using augmented reality apps, being the millennial generation and generation Z the most likely to use mobile devices with augmented reality. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
46. Performance analysis of coherent DPSK SIMO laser-based satellite-to-ground communication link over weak-to-strong turbulence channels considering Kolmogorov and non-Kolmogorov spectrum models.
- Author
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Abouelez, Ahmed Elsayed
- Subjects
FREE-space optical technology ,OPTICAL communications ,ATMOSPHERIC turbulence ,FAST Fourier transforms ,TURBULENCE ,ZENITH distance ,ATMOSPHERIC models ,TELECOMMUNICATION systems - Abstract
The performance of satellite-to-ground laser-based communication links is highly affected by atmospheric turbulence. Coherent detection with spatial diversity at the ground station receiver can mitigate the scintillation effects caused by atmospheric turbulence. Traditionally, the scintillation effects are modeled based on the Kolmogorov spectrum model. However, the experiments have indicated that scintillation effects on the laser beam propagation have non-Kolmogorov properties. Our goal in the present work is to analyze the average bit error rate (BER), outage probability (OP), and ergodic capacity of the satellite-to-ground heterodyne optical communication system with receiver spatial diversity. A differential phase-shift keying modulation technique is considered in this work. The propagated laser signal from the satellite to the ground station is assumed to be subjected to Málaga-distributed atmospheric turbulence. The atmospheric turbulence statistics are carried out based on the conventional Kolmogorov spectrum model and the three-layer altitude (TLA) non-Kolmogorov spectrum model. The performance of popular diversity combining techniques, namely, maximum ratio combining (MRC) and equal gain combining (EGC) techniques are analyzed. The statistical models of the MRC technique under the Málaga-distributed atmospheric channel model are obtained in analytical form expressions. The statistical models of the EGC technique under the Málaga-distributed atmospheric channel model are obtained via the fast Fourier transform representation of the characteristic function method. Based on these statistical models, average BER, OP, and ergodic capacity expressions for each type of diversity combining technique are derived. For the communication system under investigation, the performance of MRC and EGC multiple aperture receiver systems are compared to a single aperture receiver with the same total aperture area. These comparisons are carried out under the same conditions in terms of zenith angle and signal-to-noise ratio. The obtained results show that the performance of the optical communication system under investigation with MRC and EGC receivers can be improved by increasing the order of diversity. In addition, it is found that the difference in the performance between Kolmogorov and TLA non-Kolmogorov spectrum models is not significant at low zenith angles, while this difference increases as the zenith angle increases. All numerical results are verified by Monte-Carlo simulations. [ABSTRACT FROM AUTHOR]
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- 2023
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47. Performance Analysis of MIMO-mQAM System with Pointing Errors and Beam Spreading in Underwater Málaga Turbulence Channel.
- Author
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Wang, Jianying, Yin, Hongxi, Ji, Xiuyang, and Liang, Yanjun
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OCEAN turbulence ,QUADRATURE amplitude modulation ,TURBULENCE ,ATMOSPHERIC turbulence ,OPTICAL communications ,MIMO systems - Abstract
Both the long-term beam spreading caused by ocean turbulence and the pointing errors induced by the jitter of transmitters and receivers degrade the performance of underwater wireless optical communication (UWOC) links. To effectively alleviate their effects, an in-depth study was carried out over the Málaga turbulence channel with pointing errors and beam spreading in multiple-input and multiple-output (MIMO) UWOC. First, we analyzed the long-term beam spreading and the received light power for the finite receiving aperture in the presence of pointing error displacements. Based on this, the relationship between beam spreading, pointing errors, and signal power was established. Second, the approximate expressions of the average bit error rate (BER) and the communication outage probability were derived theoretically for this MIMO system using maximal-ratio combining (MRC) diversity. Third, the effects of the pointing errors on the coding and the diversity gains were explored for the MIMO links. Finally, using the observed ocean data from the Global Ocean Argo gridded dataset, we numerically verified the combined effects of ocean turbulence strength, beam spreading, and pointing errors on the average BER and outage probability of this system. These results also proved that adjusting the size of the receiving aperture or the order of the multiple quadrature amplitude modulation (mQAM) could effectively mitigate their effects. [ABSTRACT FROM AUTHOR]
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- 2023
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48. COVID-19 contagion forecasting framework based on curve decomposition and evolutionary artificial neural networks: A case study in Andalusia, Spain.
- Author
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Díaz-Lozano, Miguel, Guijo-Rubio, David, Gutiérrez, Pedro Antonio, Gómez-Orellana, Antonio Manuel, Túñez, Isaac, Ortigosa-Moreno, Luis, Romanos-Rodríguez, Armando, Padillo-Ruiz, Javier, and Hervás-Martínez, César
- Subjects
- *
ARTIFICIAL neural networks , *COVID-19 , *COVID-19 pandemic , *TIME perspective , *CURVE fitting , *MEDICAL care , *FORECASTING - Abstract
Many types of research have been carried out with the aim of combating the COVID-19 pandemic since the first outbreak was detected in Wuhan, China. Anticipating the evolution of an outbreak helps to devise suitable economic, social and health care strategies to mitigate the effects of the virus. For this reason, predicting the SARS-CoV-2 transmission rate has become one of the most important and challenging problems of the past months. In this paper, we apply a two-stage mid and long-term forecasting framework to the epidemic situation in eight districts of Andalusia, Spain. First, an analytical procedure is performed iteratively to fit polynomial curves to the cumulative curve of contagions. Then, the extracted information is used for estimating the parameters and structure of an evolutionary artificial neural network with hybrid architectures (i.e., with different basis functions for the hidden nodes) while considering single and simultaneous time horizon estimations. The results obtained demonstrate that including polynomial information extracted during the training stage significantly improves the mid- and long-term estimations in seven of the eight considered districts. The increase in average accuracy (for the joint mid- and long-term horizon forecasts) is 37.61% and 35.53% when considering the single and simultaneous forecast approaches, respectively. • Estimated polynomial model coefficients serve as COVID19 contagion rate descriptors. • EANNs are used to build valid predictors for different pandemic stages. • Considering curve polynomial descriptors significantly improve the model performances. • Simultaneous Multi-Task EANN forecast perform better in Málaga with simpler models. [ABSTRACT FROM AUTHOR]
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- 2022
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49. Assessment Protocol to Evaluate the Degree of Conservation of Habitats of Community Interest: A Case Study for the 5220* HCI in the Westernmost Localities of Europe.
- Author
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Hidalgo-Triana, Noelia, Casimiro-Soriguer Solanas, Federico, Solakis Tena, Andros, Manteca-Bautista, David, Picornell, Antonio, García-Sánchez, José, Navarro, Teresa, and Pérez-Latorre, Andrés V.
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HABITAT conservation ,COMMUNITIES ,CARTOGRAPHY - Abstract
The westernmost European nucleus of the 5220* Habitat of Community Interest (HCI) is located in the province of Málaga (Andalusia). In this area, the 5220* HCI is characterized by the presence of scrublands of Gymnosporia senegalensis subsp. europaea. This is a relict species in Europe, with inhabits only in the southeast of the Iberian Peninsula. The westernmost Iberian nuclei of the 5220* HCI are constituted by three isolated nuclei (Málaga–Rincón de la Victoria; Torremolinos; and Pizarra). These nuclei have been only partially mapped. The objectives were: to map the 5220* HCI characterized by G. senegalensis subsp. europaea in detail; to evaluate its degree of conservation (DC); and to identify the chronosequences of the evolution of this habitat from 1957 to 2021, and its fragmentation. Our results have contributed to generating a 1:10,000 scale cartography of the habitat. In general, the DC obtained was from good to excellent. With an excellent DC value, one inland locality (Pizarra) was highlighted. However, the highest reduction in the value of DC was observed in the localities of Torremolinos and Málaga–Rincón de la Victoria which, in addition, have reduced the area of occupancy (AOO) and are fragmented. It is important to note that some areas of Málaga–Rincón de la Victoria reached excellent values of DC, indicating the need to carry out protection. [ABSTRACT FROM AUTHOR]
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- 2023
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50. Rethinking the Anglo-Spanish War of 1625 through Military Cartography: A New Pedro Teixeira Description of the City of Málaga.
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Valladares, Rafael and Sánchez, Antonio
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WAR ,CARTOGRAPHY ,COPYING ,CARTOGRAPHERS ,NINETEENTH century ,FORTIFICATION - Abstract
Copyright of Imago Mundi is the property of Routledge and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
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