Cette thèse fournit au lecteur un recueil d'applications de la théorie des graphes ; à ce but, des outils sur mesure, adaptés aux applications considérées, ont été conçus et mis en œuvre de manière inspirée par les données.Dans la première partie, une nouvelle métrique de centralité, nommée “bridgeness”, est présentée, basée sur une décomposition de la centralité intermédiaire (“betweenness centrality”) standard. Une composante, la “connectivité locale”, correspondante approximativement au degré d'un noeud, est différenciée de l'autre, qui, en revanche, évalue les propriétés structurelles à longue distance. En effet, cette dernière fournit une mesure de l'efficacité de chaque noeud à “relayer” parties faiblement connectées d'un réseau ; une caractéristique importante de cette métrique est son agnosticisme en ce qui concerne la structure de la communauté sous jacente éventuelle.Une deuxième application vise à décrire les caractéristiques dynamiques des graphes temporels qui apparaissent au niveau mésoscopique. L'ensemble de données de choix comprend 40 ans de publications scientifiques sélectionnées. L'apparition et l'évolution dans le temps d'un domaine d'étude spécifique (les ondelettes) sont capturées, en discriminant les caractéristiques persistantes des artefacts transitoires résultants du processus de détection des communautés, intrinsèquement bruité, effectué indépendamment sur des instantanées statiques successives. La notion de “flux laminaire”, sur laquelle repose le “score de complexité” que nous cherchons à optimiser, est présentée.Dans le même ordre d'idées, un réseau d'investisseurs japonais a été construit, sur la base d'un ensemble de données qui comprend des informations (indirectes) sur les filiales étrangères en copropriété. Une question très débattue dans le domaine de l'économie industrielle, l'hypothèse de Miwa-Ramseyer, a été démontrée de manière concluante comme fausse, du moins sous sa forme forte. / This thesis provides the reader with a compendium of applications of network theory; tailor-madetools suited for the purpose have been devised and implemented in a data-driven fashion. In the first part, a novel centrality metric, aptly named “bridgeness”, is presented, based on adecomposition of the standard betweenness centrality. One component, local connectivity, roughlycorresponding to the degree of a node, is set apart from the other, which evaluates longer-rangestructural properties. Indeed, the latter provides a measure of the relevance of each node in“bridging” weakly connected parts of a network; a prominent feature of the metric is its agnosticism with regard to the eventual ground truth community structure.A second application is aimed at describing dynamic features of temporal graphs which are apparent at the mesoscopic level. The dataset of choice includes 40 years of selected scientific publications.The appearance and evolution in time of a specific field of study (“wavelets”) is captured,discriminating persistent features from transient artifacts, which result from the intrinsically noisy community detection process, independently performed on successive static snapshots. The concept of “laminar stream”, on which the “complexity score” we seek to optimize is based, is introduced.In a similar vein, a network of Japanese investors has been constructed, based on a dataset which includes (indirect) information on co-owned overseas subsidiaries. A hotly debated issue in the field of industrial economics, the Miwa-Ramseyer hypothesis, has been conclusively shown to be false, at least in its strong form.

Submitted by Erika Demachki (erikademachki@gmail.com) on 2014-12-10T13:29:38Z No. of bitstreams: 1 Dissertação - Adriano Honorato Braga - 2013.pdf: 1269065 bytes, checksum: 31a4446602e6fc177149b700de63b216 (MD5) / Rejected by Erika Demachki (erikademachki@gmail.com), reason: on 2014-12-10T13:30:49Z (GMT) / Submitted by Erika Demachki (erikademachki@gmail.com) on 2014-12-15T16:01:05Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Adriano Honorato Braga - 2013.pdf: 1269065 bytes, checksum: 31a4446602e6fc177149b700de63b216 (MD5) / Approved for entry into archive by Erika Demachki (erikademachki@gmail.com) on 2014-12-15T16:30:34Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Adriano Honorato Braga - 2013.pdf: 1269065 bytes, checksum: 31a4446602e6fc177149b700de63b216 (MD5) / Made available in DSpace on 2014-12-15T16:30:34Z (GMT). No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Dissertação - Adriano Honorato Braga - 2013.pdf: 1269065 bytes, checksum: 31a4446602e6fc177149b700de63b216 (MD5) Previous issue date: 2013-10-15 / Scientific studies about bibliographic productions in specific areas of science are becoming common, mainly in the last decade. Such investigations usually make use of bibliometric indices to evaluate relevance of the actors that take part in scientific production process, such as: authors, institutions, venues, and subfields of the scientific area being considered. Many studies have investigated the scientific production in computer science under different views. In this work, its presented an analysis about the production of scientific article in computer science and an analysis of citations among subfields, derived from article citation network. The work present novelty not only because it considers many common sense fields in computer science, but also because it presents citation related measures chronologically. The following bibliometric measures were used: number of publications in each subfield, number of citations received by a subfield, Impact Factor, PageRank, and a measure of diversity of subfields that cite a given subfield. Most of those metrics were proposed to study articles, web pages or scientific journals and they had to be adapted to be applied to the subfield analysis. This work has derived many interesting information to computer science community. It presents an historical evolution of the computer science subfields, showing how interest in publishing in subfields and how citations among subfields have evolved during the years. Some trends are revealed, some patterns are recognized to be stable along the time and some subfields are becoming less attractive than others. / Trabalhos que analisam as produções bibliográficas nos mais variados ramos da ciência têm se tornados comuns, principalmente na última década. Tais análises geralmente utilizam-se de índices ou medidas propostas para avaliar relevância de diferentes atores envolvidos no processo de produção científica, tais como: autores, instituições, veículos de publicação e subáreas do ramo da ciência considerado. Vários trabalhos têm investigado a produção científica em ciência da computação sob diversos aspectos. Neste trabalho é apresentado um estudo sobre a produção de artigos científicos nas subáreas da computação, bem como uma análise das citações entre as subáreas, derivadas das citações existentes nos artigos pertencentes a cada subárea. Esse estudo apresenta novidade não apenas pela abrangência das subáreas da computação analisadas, mas principalmente por levar em consideração o aspecto cronológico (ano de publicação) do comportamento de cada subárea sob diferentes índices bibliométricos: quantidade de publicações, quantidades de citações recebidas, PageRank, Fator de impacto e um índice para aferir se uma determinada subárea é citada diversificadamente por várias áreas ou se as citações são feitas principalmente por determinado grupo de subáreas. Algumas dessas medidas utilizadas tradicionalmente para mensurar relevância de artigos ou veículos de publicação e tiveram que ser adaptadas para a análise de subáreas. O trabalho permitiu derivar informações interessantes para a comunidade científica em ciência da computação. É apresentada a evolução histórica das subáreas da computação, mostrando como o interesse por autores e como as citações entre subáreas têm mudado ao longo do tempo. Algumas tendências são reveladas, alguns padrões são reconhecidos como sendo cronologicamente estáveis e algumas subáreas têm se tornado menos atrativas do que outras.

Cette thèse explore le concept, l’état de la littérature, et les implications commerciales de la bouche-a-oreille électronique (eWOM). Elle est basée sur un article conceptuel et deux articles empiriques. Dans le premier essai, j’apporte une clarification conceptuelle en mettant en évidence la multidimensionnalité du concept qui comporte cinq aspects (qui, quoi, où, quand et comment). Dans le second essai, le modèle résultant du premier essai est suivi d'une analyse historique des dimensions, terminologies équivalentes, théories et méthodes utilisées dans la recherche existante pour étudier l’eWOM.Utilisant l'analyse de réseau de citations, j’identifie des lacunes dans la littérature scientifique afin de faciliter la construction progressive de connaissances dans ce domaine. Enfin, dans le troisième essai, j'utilise une méta-analyse pour tester empiriquement les effets modérateurs de quatre des cinq dimensions de l’eWOM sur l'efficacité des ventes. J’observe que l’eWOM est corrélé positivement avec les ventes (.091), mais que son efficacité diffère grandement en fonction de la plateforme, du produit considéré et des mesures utilisées. Les implications théoriques et managériales, ainsi que des pistes de futures recherches, sont discutées. / This dissertation explores the construct, prior scientific inquiry, and market implications of electronic word of mouth (eWOM), and it is based upon one conceptual and two empirical papers. In the first essay, I provide conceptual clarity by dimensionalizing the construct according to five aspects (the Who, What, Where, When, and How of eWOM). In the second essay, the resulting organizing framework is followed up with a historical analysis of eWOM dimensions, aliases, theories, and methodologies used in prior research.Additionally, I employ citation network analysis in order to identify gaps in scholarly communication and facilitate progressive knowledge building in this area. Finally, in the third essay, I use meta-analysis to empirically test the moderating impact of four of the five eWOM dimensions on sales effectiveness. I find that eWOM is positively correlated with sales (.091), but its effectiveness differs across platform, product, and metric factors. Theoretical and practical implications, as well as avenues for further research are discussed.

El objetivo del presente estudio fue realizar un análisis bibliométrico de las investigaciones relacionadas a la musicoterapia en el ámbito psicológico, revisadas en la base de datos EBSCOHost. Por este motivo, se realizó una búsqueda en dicha base, de todas las investigaciones que tuvieron como eje central la aplicación de la musicoterapia, encontrándose en total 50 estudios. Después de pasar por revisiones estandarizadas, se seleccionaron 21 de estas investigaciones, cuyo enfoque fue la aplicación de la musicoterapia en diversos ámbitos psicológicos, conformando así la muestra total. De esta manera, se procedió con el análisis de datos y de la información recabada, los cuales brindaron como resultados que doce investigaciones formularon el planteamiento de objetivos, diecinueve de ellas presentaron resumen y solo cuatro de los veintiún estudios formularon hipótesis. Cabe destacar que, en todas las investigaciones se brindó especial énfasis a la observación y conducta. En conclusión, la presente investigación bibliométrica contribuyó a la revisión de la información de los estudios analizados. / The aim of the study was to carry out a bibliometric analysis of the research related to music therapy in the psychological field, reviewed in the EBSCOhost database. For this reason, a search was carried out in this database, of all the investigations that had the application of music therapy as their central axis, finding a total of 50 studies. After going through standardized reviews, 21 of these investigations were selected whose focus was the application of music therapy in various psychological fields, thus making up the total sample. Subsequently, a data analysis and the information collected were applied, which provided as results that twelve investigations formulated objectives, nineteen of them presented a summary and only four of the twenty-one studies formulated hypotheses. It should be noted that, in all the investigations, special emphasis was placed on observation and behavior. In conclusion, the present bibliometric investigation contributed to the reviews of the information of the analyzed studies. / Trabajo de investigación

The purpose of this three-essay dissertation was to expand knowledge and theory regarding soft systems methodologies (SSMs) and data visualization approaches in business, engineering, and other social sciences. The first essay depicts a bibliometric analysis study of the historic impacts of SSM from 1980-2018 on business, engineering, and other social sciences fields. This study found 285 articles that described or employed SSM for research and included outcomes such as top SSM authors, author citation impacts, common dissemination outlets, time-bound distribution of publications, and other relevant findings. This study provided a picture of who, what, why, when, and where SSM has had the greatest impact on academic thought and practice. The second essay presents research on the academic impact of Systemigrams, an associated data visualization approach, finding examples of conceptual or research development that employed Systemigrams to depict complex problem situations. Recommendations for improvement of designing these data visualizations to increase their field use resulted from this study. The final essay leverages a selection of the articles as use cases to produce a grounded theory study to identify phenomena that arose from the use of SSM for operations and firm strategy research. This study identified two broad themes including (i) scope, structure, and process challenges and (ii) performance and evaluation limitations. These themes were explained by six patterns that emerged from the publications. Each produced change recommendations for SSM process, practice, and reporting to support its continued viability and adoption in business and operations research.

<p>    </p> <p>Healthcare is one of the most critical and valuable industries. This report is a systematic literature review of the usability and safety of medical devices used extensively for patient care. Safety has been broadly considered to mean in-patient safety and improving patient care. As part of the literature review and bibliometric analysis, a search of all the articles containing the keywords “medical device” AND “usability” AND “safety” was conducted on both Web of Science and Google Scholar (through Harzing’s Publish or Perish). The results that also contained the metadata were exported to VOS Viewer for cluster generation and co-citation analyses. As part of data mining, statistical tests such as regression analysis were conducted to find the causal relationship and significance between the variables. Following this, a core set of articles, some of which demonstrated strong ties to the topic at hand, were chosen from various databases and co-citation analyses. The core set also included a relevant chapter from the <em>Handbook of Human Factors and Ergonomics, Fourth Edition </em>by Salvendy. The articles were added to Mendeley and then exported to MAXQDA for the word-cloud generation. As part of the lexical search, Springer’s AuthorMapper and Digital Science’s Dimensions were used to extract trending keywords, author information, and metadata of relevant contributions made to the topic by institutions worldwide. The regression analysis revealed a significant tie between the database and the number of articles. Additionally, the regression showed that cites per year in Google Scholar had a significant effect on g-index. Finally, the discussion section included a case study of three different drug delivery systems. This aimed to perform a risk assessment of pre-existing “smart” medical devices. The analysis revealed that there is a high risk of malfunction in all the devices due to pre-programmed dose error. None of the devices were capable of “learning’ from patient behavior and adapting accordingly. Finally, the paper discusses Human-Computer Interaction and Human Factors Problems that exist in software medical devices that utilize AI/ML methodologies. Overall, the main keywords of human cognition, health informatics, precision medicine, applied ergonomics, and design safety showed high relevance within all the chosen articles. These keywords are highly reflective of the fields that are currently disrupting the conventional governance of healthcare. </p>

Tesis por compendio / [ES] Uno de los elementos organizativos más significativos, identificado por la comunidad investigadora para desarrollar el emprendimiento, es el liderazgo (Ensley, Pearce & Hmieleski, 2006). Para que las actividades emprendedoras tengan éxito, los líderes requieren ciertos factores de liderazgo. A la hora de estudiar esos factores, constatamos que se sitúan en la intersección de dos dominios independientes como son el liderazgo y el emprendimiento, creando un nuevo paradigma: llamado liderazgo emprendedor. Este constructo relativamente reciente surge para responder a los retos y dificultades que se encuentran los emprendedores a lo largo de sus actividades emprendedoras y poder así superarlos. Sin embargo, todavía no existe una definición clara del liderazgo emprendedor ni tampoco marcos conceptuales y teóricos suficientes. Las diferentes definiciones suelen centrarse en los rasgos, características y comportamientos de los líderes emprendedores. Históricamente, la investigación analiza los rasgos y la demografía del líder. Es más relevante la edad, los estudios o el origen étnico del emprendedor que lo que hace, no se suele prestar atención al contexto del emprendimiento, es decir, a las diferentes fases por las que pasa una actividad emprendedora. Sin embargo, según la teoría del liderazgo emprendedor, el contexto es un importante moderador de la eficacia del líder. Además, si queremos abordar los factores de liderazgo en el emprendimiento de las mujeres, hay una evidencia consistente de que el líder y el emprendedor son construcciones de género. Existe un sesgo masculino dominante en los campos del liderazgo y el emprendimiento. Y todo lo relativo al emprendimiento femenino y lo que puede impactar en su crecimiento merece ser estudiado por derecho propio (Bruin, Brush, & Welter, 2006). A pesar de esas dificultades, no se han realizado suficientes investigaciones para comprender mejor qué atributos de liderazgo se consideran más importantes según la etapa del proceso emprendedor, si son contextuales o universales, y menos aún con enfoque de género. En conclusión, es importante identificar y comprender mejor qué factores o habilidades de liderazgo se consideran más valiosos para superar los retos con éxito a lo largo del proceso emprendedor. Con la presente tesis doctoral se quiere investigar estas cuestiones. En primer lugar, en la parte inicial de este documento se evidencia, a través de un análisis bibliométrico con y sin enfoque de género, que efectivamente el constructo del liderazgo emprendedor es un dominio con identidad propia desde hace relativamente poco tiempo, que adolece de una falta de marcos conceptuales, teóricos y modelos empíricos. En complemento, cuando abordamos el liderazgo emprendedor con lente de género, existe una evidencia consistente de que las descripciones estándar de las características de los líderes emprendedores están basadas en normas y rasgos con claro sesgo de género masculino dominante. El discurso del liderazgo emprendedor tiende a moverse hacia la subordinación de todos aquellos que no se ajustan a dicho estereotipo. En la segunda parte de la tesis, se identifican, a través de una revisión de literatura, los atributos más importantes del liderazgo emprendedor femenino que serán la base para construir los modelos relacionales que evaluaremos en la parte final. Mediante una revisión exhaustiva de la literatura, se identificaron y recogieron 267 factores de liderazgo. Gracias a un análisis de co-ocurrencia de los factores, se descubre que los más frecuentes son la innovación, la comunicación, el trabajo en red, la pasión, la asunción de riesgos, la visión, la oportunidad, la toma de decisiones, la autoeficacia y la necesidad de logro, entre otros. Otra de las contribuciones es que no se observan atributos de liderazgo diferentes en función del género cuando se comparan con estudios similares sin enfoque de género. Como limitación de dicho análisis, no se detecta en qué momentos intervienen dic / [CA] Un dels elements organitzatius més significatius, identificat per la comunitat investigadora per a desenrotllar l'emprenedoria, és el lideratge (Ensley, Pearce & Hmieleski, 2006). Perquè les activitats emprenedores tinguen èxit, els líders requerixen certs factors de lideratge. A l'hora d'estudiar eixos factors, constatem que se situen en la intersecció de dos dominis independents com són el lideratge i l'emprenedoria, creant un nou paradigma: cridat lideratge emprenedor. Este constructe relativament recent sorgix per a respondre als reptes i dificultats que es troben els emprenedors al llarg de les seues activitats emprenedores i poder així superar-los. No obstant això, encara no hi ha una definició clara del lideratge emprenedor ni tampoc marcs conceptuals i teòrics suficients. Les diferents definicions solen centrar-se en les característiques i comportaments dels líders emprenedors. Històricament, la investigació analitza els trets i la demografia del líder. És més rellevant l'edat, els estudis o l'origen ètnic de l'emprenedor que el que fa, no se sol prestar atenció al context de l'emprenedoria, és a dir, a les diferents fases per les quals passa una activitat emprenedora. No obstant això, segons la teoria del lideratge emprenedor, el context és un important moderador de l'eficàcia del líder. A més, si volem abordar els factors de lideratge en l'emprenedoria de les dones, hi ha una clara evidència de què el líder i l'emprenedor són construccions de gènere. Hi ha un caire masculí dominant en els camps del lideratge i l'emprenedoria. I tot el que es referix a l'emprenedoria per part de les dones i el que pot impactar en el seu creixement mereix ser estudiat per dret propi (Bruin, Brush, & Wèlter, 2006). A pesar d'eixes dificultats, no s'han realitzat suficients investigacions per a comprendre millor quins atributs de lideratge es consideren més importants segons l'etapa del procés emprenedor, si són contextuals o universals, i menys encara amb enfocament de gènere. En conclusió, és important identificar i comprendre millor quins factors o habilitats de lideratge es consideren més valuosos per a superar els reptes amb èxit al llarg del procés emprenedor. Amb la present tesi doctoral es pretén investigar aquestes qüestions. En primer lloc, en la part inicial d'aquest document s'evidencia, a través d'una anàlisi bibliomètrica amb i sense enfocament de gènere, que efectivament el constructe del lideratge emprenedor és un domini amb identitat pròpia des de fa relativament poc de temps, que patix d'una falta de marcs conceptuals, teòrics i models empírics. Per tant, quan abordem el lideratge emprenedor amb lent de gènere, hi ha una evidència marcada de què les descripcions estàndard de les característiques dels líders emprenedors estan basades en normes i trets amb clar caire de gènere masculí dominant. El discurs del lideratge emprenedor tendix a moure's cap a la subordinació de tots aquells que no s'ajusten a aquest estereotip. En la segona part de la tesi, s'identifiquen, a través d'una revisió de literatura, els atributs més importants del lideratge emprenedor femení que seran la base per a construir els models relacionals que avaluarem en la part final. Per mitjà d'una revisió exhaustiva de la literatura, es van identificar i es van arreplegar 267 factors de lideratge. Gràcies a una anàlisi de co-idea dels factors, es descobrix que els més freqüents són la innovació, la comunicació, el treball en xarxa, la passió, l'assumpció de riscos, la visió, l'oportunitat, la presa de decisions, l'autoeficàcia i la necessitat d'èxit, entre altres. Una altra de les contribucions és que no s'observen atributs de lideratge diferents en funció del gènere quan es comparen amb estudis semblants sense enfocament de gènere. Com a limitació d'aquesta anàlisi, no es detecta en quins moments intervenen els factors assenyalats en les distintes fases de l'emprenedoria. L'objectiu final de la present tesi doctoral és analitzar com certes combinacions / [EN] One of the most significant organizational elements identified by the research community for developing entrepreneurship is leadership (Ensley, Pearce & Hmieleski, 2006). For entrepreneurial activities to be successful, leaders require certain leadership factors. When studying these factors, we find that they are located at the intersection of two independent domains, namely leadership and entrepreneurship, and create a new paradigm called entrepreneurial leadership. This relatively recent construct arises to respond to the challenges and difficulties encountered by entrepreneurs throughout their entrepreneurial activities to overcome them. However, neither a clear definition of entrepreneurial leadership, nor sufficient conceptual and theoretical frameworks, are available. The different definitions tend to focus on entrepreneurial leaders' traits, characteristics and behaviors. Historically, research has analyzed leaders' traits and demographics. Entrepreneurs' age, education and ethnicity are more relevant than what they were, and attention is not normally paid to the entrepreneurship context, i.e., the different phases through which an entrepreneurial activity passes. However, according to the entrepreneurial leadership theory, context is an essential moderator of leader effectiveness. Furthermore, if we wish to address leadership factors in women's entrepreneurship, there is consistent evidence that leader and entrepreneur are gendered constructs. There is a dominant male bias in the leadership and entrepreneurship fields, and everything about women's entrepreneurship and what can impact its growth deserve to be studied in their own right (Bruin, Brush, & Welter, 2006). Despite these difficulties, not enough research has been done to better understand what leadership attributes are considered the most important depending on the entrepreneurial process stage, whether they are contextual or universal, let alone gendered. To conclude, it is essential to identify and better understand which leadership factors or skills are most valuable to successfully overcome challenges throughout the entrepreneurial process. The present doctoral thesis aims to investigate these questions. First of all, with a bibliometric analysis the initial part of this research evidences, with and without a gender focus, that indeed the entrepreneurial leadership construct is a domain with its own identity because relatively recently it suffered from lack of conceptual and theoretical frameworks and empirical models. In addition, when we approach entrepreneurial leadership with a gender lens, there is consistent evidence that standard descriptions of entrepreneurial leaders' characteristics are based on norms and traits with a clear dominant male gender bias. Entrepreneurial leadership discourse tends to move towards the subordination of all those who do not conform to that stereotype. In the second part of the thesis, through a literature review it identifies the most essential attributes of female entrepreneurial leadership, which will be the basis for building the relational models that are evaluated in the final part. By means of a comprehensive literature review, 267 leadership factors are identified and collected. Thanks to a co-occurrence analysis of the factors, it discovers that the most frequent are innovation, communication, networking, passion, risk-taking, vision, opportunity, decision making, self-efficacy, the need for achievement, among others. Another contribution is that no gender-differentiated leadership attributes are observed compared to similar studies without a gender focus. As a limitation of this analysis, it is not detected at what times these factors intervene in the different entrepreneurship phases. The final objective of this doctoral thesis is to analyze how certain combinations of leadership factors impact the different stages of female entrepreneurs' activity in both the launching and start-up phases, and also in the / Aparisi Torrijo, S. (2022). Los factores del liderazgo influyentes en el crecimiento y éxito del emprendimiento femenino [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/186301 / Compendio

[ES] Los retos sociales y medioambientales a los que nos enfrentamos en el siglo XXI han sido el motor de la investigación en economía circular (EC). La EC se define como un sistema económico que minimiza la entrada y el desperdicio de recursos, las emisiones y las fugas de energía del sistema mitigando los impactos negativos sin poner en peligro el crecimiento y la prosperidad (Geissdoerfer et al., 2018). Esta tesis persigue proporcionar un marco conceptual con el fin de analizar el esfuerzo requerido para implementar estrategias de EC en las organizaciones, así como el impacto que genera y la forma en que se mide su grado de avance. Para ello se han realizado los siguientes estudios: (1) análisis bibliográfico del concepto de la EC, estrategias e indicadores; (2) análisis bibliométrico; (3) estudio del caso y análisis comparativo. Esta investigación profundiza en la forma en que la aplicación de la EC está impactando en las organizaciones de la triple hélice: sector académico, empresarial y administración (Ranga et al., 2015), enfatizando los desafíos y lecciones aprendidas. De modo que se puedan identificar las oportunidades, fortalezas, debilidades y barreras que está teniendo la aplicación real de la EC en las organizaciones. Con dicho fin, se han seleccionado once organizaciones que han sido entrevistadas y analizadas siguiendo los criterios de diversidad (representación internacional pero también una fuerte presencia de la Comunidad Valenciana en el modelo de innovación de triple hélice), autenticidad y relevancia (grado de conocimiento del concepto de EC en para analizar un entorno heterogéneo con diferentes niveles de experiencias, oportunidades, fortalezas, debilidades en el campo de la EC e indicadores.) Los desafíos comunes identificados para todas las organizaciones analizadas son la monitorización de la EC, la heterogeneidad en la aplicación y monitorización de las estrategias EC, la dimensión social, el involucramiento de todos los acto-res de la sociedad y la pandemia COVID-19. Por otro lado, las lecciones aprendidas comunes a todos los casos de estudio son la cooperación en proyectos de I+D+i financiados, el impacto económico positivo en las cadenas de valor circulares y la formación permanente. Finalmente, los indicadores que son empleados por todas las organizaciones analizadas se centran en el carácter medioambiental (huella de carbono, LCA) o el carácter general (KPI) de los indica-dores. / [CA] Els reptes socials i mediambientals als quals ens enfrontem en el segle XXI han sigut el motor de la investigació en economia circular (EC). La EC es defineix com un sistema econòmic que minimitza l'entrada i el desaprofitament de re-cursos, les emissions i les fugides d'energia del sistema mitigant els impactes negatius sense posar en perill el creixement i la prosperitat (Geissdoerfer et al., 2018). Aquesta tesi persegueix proporcionar un marc conceptual per a poder analitzar l'esforç requerit per a implementar estratègies de EC en les organitzacions, així com l'impacte que genera i la forma en què es mesura el seu grau d'avanç. Per a això s'han realitzat els següents estudis: (1) anàlisi bibliogràfica del concepte de la EC, estratègies i indicadors; (2) anàlisi bibliomètrica; (3) estudi del cas i anàlisi comparativa. Aquesta investigació aprofundeix en la forma en què l'aplicació de EC està im-pactant en les organitzacions de triple hèlice: sector acadèmic, empresarial i administració (Ranga et al., 2015), emfatitzant els desafiaments i lliçons apreses. De manera que es s'identifiquen les oportunitats, fortaleses, febleses i barreres que està tenint l'aplicació real de la EC en les organitzacions. Amb aquesta fi, s'han seleccionat onze organitzacions que han sigut entrevista-des i analitzades seguint els criteris de diversitat (representació internacional però també una forta presència de la Comunitat Valenciana en el model d'innovació de triple hèlice), autenticitat i rellevància (grau de coneixement del con-cepte de EC en per a analitzar un entorn heterogeni amb diferents nivells d'ex-periències, oportunitats, fortaleses, febleses en el camp de la EC i indicadors). Els desafiaments comuns identificats per a totes les organitzacions analitzades són el monitoratge de la EC, l'heterogeneïtat en l'aplicació i monitoratge de les estratègies EC, la dimensió social, l'involucrament de tots els actors de la socie-tat i la pandèmia COVID-19. D'altra banda, les lliçons apreses comunes a tots els casos d'estudi són la cooperació en projectes d'I+D finançats, l'impacte eco-nòmic positiu en les cadenes de valor circulars i la formació permanent. Finalment, els indicadors que són emprats per totes les organitzacions analitzades se centren en el caràcter mediambiental (empremta de carboni, LCA) o el caràcter general (KPI) dels indicadors. / [EN] The social and environmental challenges that we face in the 21st century have been the engine of the circular economy (CE) research. The CE is understood as an economic system that minimizes the resource input and waste, emissions and energy leakage from the system mitigating negative impacts without jeopardizing growth and prosperity (Geissdoerfer et al., 2018). This thesis aims to provide a conceptual framework to be able to analyse the effort required to implement CE strategies in organizations, as well as the impact generated and the way in which its degree of progress is measured. With the described purpose, the following studies have been carried out: (1) bibliographical analysis of the CE concept, strategies, and indicators; (2) bibliometric analysis; (3) case study and comparative analysis. This research delves into the way in which the application of CE is impacting on the triple helix organization: scientific, industrial and administration sector (Ranga et al., 2015), emphasizing points for improvement and lessons learned. So that we can understand the opportunities, strengths, weaknesses, and challenges that the real application of CE is having in the organizations. For this purpose, there have been selected eleven organizations that have been interviewed and analysed following the diversity criteria (international represen-tation but also a strong presence of the Valencian Community in the triple helix innovation model), authenticity and relevance (degree of knowledge of the concept of CE to analyse a heterogeneous environment with different levels of experiences, opportunities, strengths, weaknesses in the field of CE and indicators). The common challenges identified for all the organizations analysed are the monitoring of CE, the heterogeneity in the application and monitoring of CE strategies, the social dimension, the involvement of all actors of society and the COVID-19 pandemic. On the other hand, the common lessons learned are cooperation in funded R&D projects, the positive economic impact on circular value chains, and continuous training. Finally, the indicators that are used by all the organizations analysed focus on the environmental character (carbon footprint, LCA) or the general character (KPI) of the indicators. / Palanca Roig, A. (2023). La Economía Circular en las organizaciones: estrategias e indicadores. Análisis de casos [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/195108

Yes / Blockchain operates on a highly secured framework, and its decentralized consensus has benefits for supply chain sustainability. Scholars have recognized the growing importance of sustainability in supply chains and studied the potential of blockchain for sustainable supply chain management. However, no study has taken stock of high-quality research in this area. To address this gap, this paper aims to provide a state-of-the-art overview of high-quality research on blockchain for sustainable supply chain management. To do so, this paper conducts a systematic literature review using a bibliometric analysis of 146 high-quality articles on blockchain for sustainable supply chain management that have been published in journals ranked “A*”, “A”, and “B” by the Australian Business Deans Council and retrieved from the Scopus database. In doing so, this paper unpacks the most prominent journals, authors, institutions, and countries that have contributed to three major themes in the field, namely blockchain for sustainable business activities, decision support systems using blockchain, and blockchain for intelligent transportation system. This paper also reveals the use of blockchain for sustainable supply chain management across four major sectors, namely food, healthcare, manufacturing, and infrastructure, and concludes with suggestions for future research in each sector.

Analisou-se neste trabalho a produção científica brasileira, no campo da Saúde, por meio da pesquisa de publicações, constantes da base de dados \"Web of Knowledge\", no período de 1990 a 2002. A pesquisa incluiu 3.066 revistas desse campo do conhecimento. Nesse período foram contabilizadas 38.349 publicações. Os métodos bibliométricos tradicionais e a \"co-word analysis\" foram utilizados como instrumento de análise para medir a atividade científica no campo da saúde. O pacote estatístico, Statistical Package for Social Science - SPSS, foi utilizado para a obtenção dos indicadores bibliométricos tradicionais. Demonstraram-se as etapas de trabalho e a potencialidade da \"co-word analysis\". Foram estudadas as palavras que representam os descritores e identificadores na base de dados e estas foram relacionadas com outras variáveis como autores, ano de publicação e filiação da publicação. Para tal, utilizou-se o \"Tétralogie\", um software que aplica tratamentos estatísticos para conseguir que o grau de co-ocorrência entre as palavras seja representado como distâncias no espaço. Desta forma, as palavras podem ser visualizadas como pontos no espaço, por meio dos mapas tecnológicos e a distância entre elas será representativa de sua co-ocorrência ou afinidade. Os mapas tecnológicos permitiram a identificação de redes de cooperação entre pesquisadores e instituições, bem como identificação de \"clusters\" entre autores e as palavras descritoras do campo de conhecimento estudado. Esta abordagem para a área de avaliação em Ciência e Tecnologia demonstrou ampliar as análises bibliométricas tradicionais, e pode incrementar as atividades de planejamento e definição de ações estratégicas indicando, para onde e como se poderiam dirigir esforços para desenvolvimento do campo estudado. / This work analyzed Brazilian scientific production in the health sciences field by analysis of publications present in the database \"Web of knowledge\" in the period from 1990 to 2002. The study covered 3,066 journals in this field of knowledge. During this period a total of 38,349 Brazilian publications were found. Bibliometric analysis and \"co-word analysis\" were used to measure the scientific activity in health sciences. A statistical software package (Statistical Package for Social Science – SPSS) was used to determine traditional bibliometric analysis. The words representing descriptors and identifiers in the database had been studied and the relationship to other variables such as authors, publication year, and affiliation within the publication was determined. For this analysis, the \"Tétralogie\" software that applies statistical methods to measure the co-occurrence among words and represents this measure as distances in space was used. In this way, words can be visualized as points in space on a map. The maps and distances between words will represent the co-occurrence or affinity between keywords. The technological maps have shown networks of cooperation among researchers and institutions, as well as identification of \"clusters\" of authors and a hierarchy of the descriptive keywords. This approach for evaluation of science and technology demonstrated an extension of the traditional bibliometric analysis and showed that it could improve planning activities by identification of strategic actions pointing to where and how efforts for improvement in the field of health sciences should be directed.