Aplicación de acústica cualitativa en el control activo de ruido

6 pp.-- PACS nr.: 43.50.Qp.-- Comunicación presentada en los siguientes congresos: XXX Jornadas Nacionales de Acústica – TecniAcústica 1999. Encuentro Ibérico de Acústica (Ávila, 20-22 Octubre 1999).Publicado en número especial de la Revista de Acústica: Vol 30(1999).To determine the hypothetical subjective effectiveness of an active noise control system, two simple experiments were performed. The two tests are based on the same type of judgements made by the subjects: pair comparisons. Also a simple test of auditive perception was conducted to equalise the loudness level of the noise and the calibration signal. The results of the two tests were in general agreement with the active noise control measures.Este trabajo ha sido posible gracias al soporte financiero de la Comisión Interministerial de Ciencia y Tecnología. (Proyecto AMB97-1175-C02-01).Peer reviewe

Discovering Rehabilitation trends in Spain: A bibliometric analysis

The main purpose of this study is to offer an overview of the rehabilitation research area in Spain from 1970 to 2018 through a bibliometric analysis. Analysis of performance and a co-word science mapping analysis were conducted to highlight the topics covered. The software tool SciMAT was used to analyse the themes concerning their performance and impact measures. A total of 3,564 documents from the Web of Science were retrieved. Univ Deusto, Univ Rey Juan Carlos and Basque Foundation for Science are the institutions with highest relative priority. The most important research themes are IntellectualDisability, Neck-Pain and Pain

Textos medievals i orígens del cristianisme

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Una lectura no canònica del Cant espiritual de Joan Maragall

Aquesta breu aportació només vol ser un comentari lliure i personal, no gens canònic, ifins i tot heterodox, del Cant espiritual de Maragall. Es tracta d'una glossa que alhora creu poder tipificar el que és i ha de ser el més genuí tarannà filosòfic: el tarannà de qui cerca la veritat, de qui només cerca i mai no deixa de cercar la veritat. Si hom cerca, és que encara no ha trobat allò que busca; com a cercador, doncs, el filòsof ha de restar lluny del dogmatisme gnòstic (sigui del signe que sigui). Però, si cerca, és que es mou ja en la direcció d'una eventual trobada; per tant, el filòsof tampoc no pot fer seva la postura escèptica que ha decidit la impossibilitat d'aquesta trobada. Com el poeta d'un Cant espiritual glossat com a Cant alhora mundanal i espiritual, el filòsof ha de mantenir-se en la corda fluixa de l'agnosticisme, lluny de la gnosi tant de la transcendència com de la immanència.This brief contribution only tries to be a personal and free comment non canonical and even heterodox of the Cant espiritual («Spiritual song») of Maragall. It's a gloss that at the same time wants to typify what is and must be the genuine philosophical mood: the mood of the person who seeks the truth, who only and ever seeks the truth. If someone seeks, it means he has not still found what he seeks; as a searcher, therefore, the philosopher must be far from gnostic dogmatism (no matter its sign). But if he seeks, it means that he moves already toward a possible finding; so the philosopher cannot assume the sceptical attitude that has decided the impossibility of this finding. Like the poet of a «Spiritual Song» glossed as «Worldly and at the same time Spiritual Song», the philosopher must keep himself on the tightrope of agnosticism, far from any gnosi of transcendence or immanence

Latent Dirichlet Allocation (LDA) for improving the topic modeling of the official bulletin of the spanish state (BOE)

Since Internet was born most people can access fully free to a lot sources of information. Every day a lot of web pages are created and new content is uploaded and shared. Never in the history the humans has been more informed but also uninformed due the huge amount of information that can be access. When we are looking for something in any search engine the results are too many for reading and filtering one by one. Recommended Systems (RS) was created to help us to discriminate and filter these information according to ours preferences. This contribution analyses the RS of the official agency of publications in Spain (BOE), which is known as "Mi BOE'. The way this RS works was analysed, and all the meta-data of the published documents were analysed in order to know the coverage of the system. The results of our analysis show that more than 89% of the documents cannot be recommended, because they are not well described at the documentary level, some of their key meta-data are empty. So, this contribution proposes a method to label documents automatically based on Latent Dirichlet Allocation (LDA). The results are that using this approach the system could recommend (at a theoretical point of view) more than twice of documents that it now does, 11% vs 23% after applied this approach

A cloud-based tool for sentiment analysis in reviews about restaurants on TripAdvisor

The tourism industry has been promoting its products and services based on the reviews that people often write on travel websites like TripAdvisor.com, Booking.com and other platforms like these. These reviews have a profound effect on the decision making process when evaluating which places to visit, such as which restaurants to book, etc. In this contribution is presented a cloud based software tool for the massive analysis of this social media data (TripAdvisor.com). The main characteristics of the tool developed are: i) the ability to aggregate data obtained from social media; ii) the possibility of carrying out combined analyses of both people and comments; iii) the ability to detect the sense (positive, negative or neutral) in which the comments rotate, quantifying the degree to which they are positive or negative, as well as predicting behaviour patterns from this information; and iv) the ease of doing everything in the same application (data downloading, pre-processing, analysis and visualisation). As a test and validation case, more than 33.500 revisions written in English on restaurants in the Province of Granada (Spain) were analyse

Internet of things: Conceptual network structure, main challenges and future directions

Internet of Things (IoT) is a key technology trend that supports our digitalized society in applications such as smart countries and smart cities. In this study, we investigate the existing strategic themes, thematic evolution structure, key challenges, and potential research opportunities associated with the IoT. For this study, we conduct a Bibliometric Performance and Network Analysis (BPNA), supplemented by an exhaustive Systematic Literature Review (SLR). Specifically, in BPNA, the software SciMAT is used to analyze 14,385 documents and 30,381 keywords in the Web of Science (WoS) database, which was released between 2002 and 2019. The results reveal that 31 clusters are classified according to their importance and development, and the conceptual structures of key clusters are presented, along with their performance analysis and the relationship with other subthemes. The thematic evolution structure describes the important cluster(s) over time. For the SLR, 23 documents are analyzed. The SLR reveals key challenges and limitations associated with the IoT. We expect the results will form the basis of future research and guide decision-making in the IoT and other supporting industries.Coordenaç~ao de Aperfeiçoamento de Pessoal de Nível Superior - Brazil (CAPES) - Finance Code 001 and the Spanish Ministry of Science and Innovation under grants PID2019-105381 GA-100 (iScience)Consejo Nacional de Ciencia y Tecnología (CONACYT) and Direcci on General de Relaciones Exteriores (DGRI

Bidding for B2B or B2G tenders: toward the adoption of pricing models in practice

Data availability The authors confirm that all data generated or analyzed are included in this published article. The data source for science mapping was Elsevier’s Scopus database. The search term for extracting the publication data is presented in Sect. 3 in Scopus syntax for replicability by other researchers. The same section also shows the parameterization of the SciMAT tool for transparency.This study investigates the lack of adoption of pricing models for tenders in business- to-business (B2B) and business-to-government (B2G) markets. We aim to identify the gaps between research and practice and propose a future research agenda to bridge these gaps. Our study contributes in three ways: First, we outline how our research agenda can influence the adoption of pricing models across specific practitioner roles in tendering. Second, we introduce systematic science mapping (SSM) as a novel methodology for literature reviews. SSM combines a systematic review and science mapping in a multi-stage, mixed-methods research design. We chart the evolution of 1042 research publications from 1956 to 2022 into three thematic areas. Our review of 163 gray literature publications reveals seven schools of thought on tender price modeling and the causes of theory-to-practice gaps. Finally, we introduce a new metric, the mapping factor (MAPF), as a robustness indicator for systematic literature reviews

Software tools for conducting bibliometric analysis in science: An up-to-date review

Bibliometrics has become an essential tool for assessing and analyzing the output of scientists, cooperation between universities, the effect of state-owned science funding on national research and development performance and educational efficiency, among other applications. Therefore, professionals and scientists need a range of theoretical and practical tools to measure experimental data. This review aims to provide an up-to-date review of the various tools available for conducting bibliometric and scientometric analyses, including the sources of data acquisition, performance analysis and visualization tools. The included tools were divided into three categories: general bibliometric and performance analysis, science mapping analysis, and libraries; a description of all of them is provided. A comparative analysis of the database sources support, pre-processing capabilities, analysis and visualization options were also provided in order to facilitate its understanding. Although there are numerous bibliometric databases to obtain data for bibliometric and scientometric analysis, they have been developed for a different purpose. The number of exportable records is between 500 and 50,000 and the coverage of the different science fields is unequal in each database. Concerning the analyzed tools, Bibliometrix contains the more extensive set of techniques and suitable for practitioners through Biblioshiny. VOSviewer has a fantastic visualization and is capable of loading and exporting information from many sources. SciMAT is the tool with a powerful pre-processing and export capability. In views of the variability of features, the users need to decide the desired analysis output and chose the option that better fits into their aims