Advanced search in Research products
Research products
arrow_drop_down
Searching FieldsTerms
Any field
arrow_drop_down
includes
arrow_drop_down
The following results are related to Rural Digital Europe. Are you interested to view more results? Visit OpenAIRE - Explore.
10 Research products

  • Rural Digital Europe
  • 2013-2022
  • Restricted
  • Doctoral thesis

Relevance
arrow_drop_down
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Crivelli, Pramila Adeline;

    In recent decades, the world trading system has witnessed the proliferation of both, preferential trade agreements (PTAs) and Non-Tariff Measures (NTMs). This dissertation contributes to our understanding of the impact of the two phenomena by: (i) examining the effect of PTAs on the multilateral system, and (ii) assessing the impact of Sanitary and Phytosanitary (SPS) measures on market entry and international trade flows. The first two chapters examine the questions: what is the impact of preferential trade liberalization on external protection? The first chapter provides evidence that the impact of PTAs is heterogeneous across countries and argues that the effect is mainly driven by tariff revenue considerations. The second chapter explores the role played by the enhanced market opportunities conferred by regional agreements on external protection. The last chapter uses restrictive product standards to assess the SPS impact on the extensive and the intensive margin of trade in agricultural and food products.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archive ouverte UNIG...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Archive ouverte UNIGE
    Doctoral thesis . Thesis . 2015
    Archive ouverte UNIGE
    Doctoral thesis . 2015
    Data sources: Datacite
    addClaim

    This Research product is the result of merged Research products in OpenAIRE.

    You have already added works in your ORCID record related to the merged Research product.
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archive ouverte UNIG...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      Archive ouverte UNIGE
      Doctoral thesis . Thesis . 2015
      Archive ouverte UNIGE
      Doctoral thesis . 2015
      Data sources: Datacite
      addClaim

      This Research product is the result of merged Research products in OpenAIRE.

      You have already added works in your ORCID record related to the merged Research product.
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Niccolò Dematteis;

    Collection of published papers on the characterisation of monitoring techniques: image cross-correlation and terrestrial rada inteferometry. Coupling of techniques and application on glacial case studies

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao CNR ExploRAarrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    CNR ExploRA
    Doctoral thesis . 2019
    Data sources: CNR ExploRA
    ResearchGate Data
    Thesis . 2020
    Data sources: Datacite
    addClaim

    This Research product is the result of merged Research products in OpenAIRE.

    You have already added works in your ORCID record related to the merged Research product.
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao CNR ExploRAarrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      CNR ExploRA
      Doctoral thesis . 2019
      Data sources: CNR ExploRA
      ResearchGate Data
      Thesis . 2020
      Data sources: Datacite
      addClaim

      This Research product is the result of merged Research products in OpenAIRE.

      You have already added works in your ORCID record related to the merged Research product.
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Antonić, Aleksandar;

    The Internet of Things (IoT) is a concept that connects things and objects from the environment and everyday life into a global network and serves as a foundation for development of advanced, self-configuring services adapted to the user context. The thesis presents the CUPUS middleware, an open-source publish/subscribe solution for IoT environment. The CUPUS middleware is compared with other publish/subscribe solutions, and the thesis provides classification of publish/subscribe solutions reported in the literature in seven groups based on their capabilities and characteristics. The thesis proposes analytical modelling of aggregate input load of IoT services and modelling of processing times of publish/subscribe components using well-known distributions. Finally, a process to create a Queueing Theory model of publish/subscribe solution is proposed and demonstrated on the CUPUS middleware. The output of the model that estimates the processing time at individual component or in the system overall is in accordance with the results that were collected during the experimental evaluation of the middleware. The scientific contribution of the proposed research in the doctoral thesis is the following: - a taxonomy of cloud-based publish/subscribe systems for continuous processing of sensor data streams in the area of the IoT; - analytical performance model of cloud-based publish/subscribe systems based on queueing theory; - verification method of the analytical performance model which compares modelling results with the observed publish/subscribe system. Internet stvari (IoT) je koncept koji povezuje stvari i objekte iz okoliša i svakodnevnog života u globalnu mrežu te omogućuje izgradnju naprednih, samo-konfigurirajućih usluga prilagođenih kontekstu korisnika. Rad predstavlja međuopremu CUPUS, rješenje otvorenog koda sustava objavi-pretplati za IoT. Međuoprema CUPUS uspoređuje se s drugim sustavima objavi-pretplati, a disertacija predstavlja klasifikaciju sustava objavi-pretplati iz literature u sedam skupina na temelju njihovih mogućnosti i karakteristika. U radu je predložen analitički model za određivanje ukupnog ulaznog opterećenja IoT usluga i modeliranje vremena obrade komponenti sustava objavi-pretplati pomoću poznatih distribucija. Predložen je proces stvaranja analitičkog modela temeljen na teoriji repova čekanja za sustave objavi-pretplati, a demonstriran je na međuopremi CUPUS. Rezultati analitičkih modela koji procjenjuju vrijeme obrade na pojedinačnoj komponenti ili u cjelokupnom sustavu u skladu su s rezultatima prikupljenim tijekom eksperimentalne evaluacije. U radu su ostvareni sljedeći doprinosi: - taksonomija sustava objavi-pretplati namijenjenih računalnom oblaku za kontinuiranu obradu tokova senzorskih podataka u području Interneta stvari; - analitički model performanci sustava objavi-pretplati namijenjenih računalnom oblaku koji se temelji na teoriji repova čekanja i posluživanja; - metoda verifikacije analitičkog modela performanci koja uspoređuje rezultate modeliranja s opaženim performancama sustava objavi-pretplati.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao FER Repositoryarrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao FER Repositoryarrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Zapata, Emilio Armando;

    El presente proyecto de investigación que lleva por título “Capacidades dinámicas que impactan la productividad a través de la transformación digital de las instituciones de educación superior”, se realizó con la finalidad de comprender cómo las capacidades dinámicas de innovación y aprendizaje impactan la productividad a través de la transformación digital de las instituciones de educación superior. En la actualidad, la globalización de la información, la tecnología y sus nuevas tendencias están potencializando un cambio en las organizaciones, y las instituciones de educación superior no son ajenas a esta transformación, debido a su papel fundamental en la sociedad. La disyuntiva que afrontan muchas instituciones de educación superior, es que deben encontrar una manera de ajustarse a estos cambios manteniendo ventajas competitivas sostenibles; por ello, las instituciones deben identificar y valorar las capacidades dinámicas que impactan la productividad a través de la transformación digital en las mismas, de manera lógica y estratégica, para dar respuesta oportuna a estos nuevos procesos. El objetivo que se busca conseguir, a través del presente estudio, es explicar como las capacidades dinámicas a través de la transformación digital impactan la productividad de las instituciones de educación superior. Para ello se utilizó un enfoque cuantitativo dentro del paradigma positivista, con un alcance explicativo-correlacional y un diseño no experimental - transeccional. Los datos fueron recopilados a través de una encuesta estructurada donde participaron personas, que están en el nivel estratégico de las instituciones y algunos tácticos (rectores, vicerrectores académicos, vicerrectores administrativos y/o financieros, vicerrectores de investigación, vicerrectores de extensión, jefes de planeación y jefes de sistemas), de dieciocho (18) instituciones universitarias públicas colombianas. Los resultados fueron recabados y procesados, con el fin de comprobar el cumplimiento de las hipótesis planteadas, a través de la herramienta informática SPSS Statistics versión 28 y SPSS AMOS versión 28. El análisis de los resultados se realizó a través de un análisis estadístico descriptivo y un análisis estadístico multivariante con el fin de contrastar las relaciones causales entre las variables del modelo propuesto. El método elegido para analizar y modelar los datos fue el modelo de ecuaciones estructurales. Como resultados se encontraron que: i) la mayor parte de las instituciones universitarias públicas que desarrollan capacidades dinámicas de innovación han obtenido buenos resultados por su implementación; ii) la mayor parte de las instituciones universitarias públicas que desarrollan capacidades dinámicas de aprendizaje han obtenido buenos resultados por su implementación; iii) la mayor parte de las instituciones universitarias públicas han realizado procesos de transformación digital; iv) la capacidad dinámica de innovación y la capacidad dinámica de aprendizaje impactan positivamente en la transformación digital de las instituciones de educación superior; v) la transformación digital impacta positivamente la productividad en las instituciones de educación superior. Dentro de las principales conclusiones se tiene que al modelo teórico propuesto, representa cabalmente las diferentes dimensiones de la capacidad dinámica de innovación, la capacidad dinámica de aprendizaje, la transformación digital y la productividad en las instituciones de educación superior. Así mismo, se resalta la baja influencia que se muestra en el modelo teórico de las tecnologías digitales y los clientes en la transformación digital, lo que indica que todavía existe una baja incorporación de las tecnologías digitales en las instituciones de educación superior, y un grado de satisfacción bajo de los clientes por la incorporación de las mismas en los servicios que ellos utilizan de la institución. This research project entitled "Dynamic capacities that impact productivity through the digital transformation of higher education institutions"was carried out with the purpose of understanding how the dynamic capabilities of innovation and learning impact productivity through the digital transformation of higher education institutions. Nowadays, the globalization of information, technology and its new trends are potentiating a change in organizations, and higher education institutions are not strangers to this transformation, due to their fundamental role in society. The dilemma facing many higher education institutions is that they must find a way to adjust to these changes by maintaining sustainable competitive advantages; therefore, institutions must identify and assess the dynamic capabilities that impact productivity through digital transformation, logically and strategically, in order to respond in a timely manner to these new processes. The objective sought to be achieved, through the present study, is to explain how dynamic capabilities through digital transformation impact the productivity of higher education institutions. For this purpose, a quantitative approach within the positivist paradigm was used, with an explanatory-correlational scope and a non-experimental - cross-sectional design. The data were collected through a structured survey with the participation of people at the strategic and some tactical levels of the institutions (rectors, academic vice-rectors, administrative and/or financial vice-rectors, vice-rectors of research, vice-rectors of extension, heads of planning and heads of systems), from eighteen (18) Colombian public university institutions. The results were collected and processed, in order to verify the fulfillment of the hypotheses proposed, through the SPSS Statistics version 28 and SPSS AMOS version 28 software tools. The analysis of the results was carried out through a descriptive statistical analysis and a multivariate statistical analysis in order to contrast the causal relationships between the variables of the proposed model. The method chosen to analyze and model the data was structural equation modeling. The results found that: i) most of the public university institutions that develop dynamic innovation capacities have obtained good results for their implementation; ii) most of the public university institutions that develop dynamic learning capacities have achieved good results through their implementation; iii) most of the public university institutions have carried out digital transformation processes; iv) the dynamic capacity for innovation and the dynamic capacity for learning have a positive impact on the digital transformation of higher education institutions; v) digital transformation positively impacts productivity in higher education institutions. Among the main conclusions, the proposed theoretical model fully represents the different dimensions of the dynamic capacity for innovation, dynamic learning capacity, digital transformation and productivity in higher education institutions. Likewise, the low influence shown in the theoretical model of digital technologies and customers in digital transformation is highlighted, which indicates that there is still a low incorporation of digital technologies in higher education institutions, and a low degree of customer satisfaction with the incorporation of these technologies in the services they utilize from the institution.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositorio Universi...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Repositorio Universidad Simón Bolívar
    Doctoral thesis . 2022
    License: CC BY NC ND
    addClaim

    This Research product is the result of merged Research products in OpenAIRE.

    You have already added works in your ORCID record related to the merged Research product.
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositorio Universi...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      Repositorio Universidad Simón Bolívar
      Doctoral thesis . 2022
      License: CC BY NC ND
      addClaim

      This Research product is the result of merged Research products in OpenAIRE.

      You have already added works in your ORCID record related to the merged Research product.
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Bossu, Julie;

    The forests of French Guiana occupy a central part of the region’s potential resource base, but as yet remain almost completely unexploited. This stems from the forestry industry struggling to valorize wood stocks of a high diversity with an extremely heterogeneous distribution. Indeed, identifying essences for future propagation is an issue of both environmental and socio-economic importance for the region. Bagassa guianensis Aubl. and Cordia alliodora (Ruiz & Pav.) Oken. go against conventional models, in that they display the life history characteristics of rapid growth and wood of high quality, and thus are species of high potential for future plantations. Firstly, our study of growth characteristics reveals a defined strategy half way between long-lived species and pioneer species. It is the variability of basic density of wood which is a key trait allowing for such a development, favoring rapid growth in initial years whilst allowing for tree longevity. Secondly, the analysis of a range of wood properties (shrinkage, modulus of elasticity, durability) in relation to tree growth confirms the technologic quality of the two species. It also enables the emergence of new results like the effect of extractives on wood stability, the control of growth as a result of basic density variation, the evolution of leaf traits throughout tree development or the improvement of trunk maintenance thanks to interlocked grain. The knowledge gained in relation to the developmental traits of these two species, and to the quality of their wood allows for the elaboration of plantation projects and what will be required for their success. The results of this study can orientate future studies on novel species for commercialization in French Guiana.; La ressource forestière en Guyane occupe une place maîtresse au sein de la région et est encore majoritairement préservée, mais la filière bois parvient difficilement à valoriser la biodiversité locale en raison de l’hétérogénéité de la ressource. Identifier les essences à planter demain représente aujourd’hui un enjeu à la fois environnemental, économique et social pour la Guyane. Bagassa guianensis Aubl. et Cordia alliodora (Ruiz & Pav.) Oken. vont à l’encontre des modèles usuels en associant vitesse de croissance et qualité du bois et sont identifiées comme prometteuses pour la plantation. Dans un premier temps, l’étude de la dynamique de croissance des deux espèces révèle un modèle écologique singulier, à la fois pionnières et longévives. La variabilité de l’infradensité dans l’arbre est l’élément clé qui permet un tel développement, favorisant une croissance rapide dans les premières années tout en assurant la longévité de l’individu. Dans une seconde partie, l’analyse d’un large panel de propriétés du bois (retrait, module, durabilité) en lien avec le développement de l’arbre confirme les qualités technologiques des deux espèces et permet l’émergence de résultats novateurs tels que le rôle des extractibles sur le retrait, le contrôle de la croissance grâce aux variations d’infradensité, l’évolution des traits foliaires au cours de l’ontogénie ou encore la mise en place de contrefil dans l’arbre pour assurer son maintien. La connaissance acquise vis-à-vis du mode de développement de ces deux espèces et des facteurs influençant la qualité de leur bois permet aujourd’hui de définir avec plus de précision le cadre d’un projet de plantation et les conditions de son succès. Les résultats de cette étude permettent finalement d’orienter la recherche de nouvelles espèces d’avenir pour la plantation en Guyane.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Agritroparrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Agritrop
    Thesis . 2015
    Data sources: Agritrop
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: DI GIAMPAOLO, E; Marrocco, G; Caizzone, S;
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archivio della Ricer...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archivio della Ricer...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Doku, Angela Yaboley;

    This thesis explores the intersection of development, environmental, and behavioural economics. The first chapter discusses the effect of economic adversity of self-esteem levels. We find that exposure to drought, particularly during adolescence, has a negative affect on the self-esteem of both the children of farmers, and farmers themselves. We additionally find some causal evidence of the relationship between parent and child self-esteem, suggesting that intergenerational transmission may take place within the household. Chapter 2 then determines the effect of peer choices on decision-making at the farm-level. We find that peer adaptation decisions have a positive and significant impact on the adaptation choices of farmers. Chapter 3 concludes by descriptively identifying the relationship between different behavioural measures, again within an agrarian context. I find that noncognitive skills have a strong relationship with gender and social networks, and time preferences in particular have a strong relationship with noncognitive skills.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archive ouverte UNIG...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Archive ouverte UNIGE
    Doctoral thesis . Thesis . 2021
    Archive ouverte UNIGE
    Doctoral thesis . 2021
    Data sources: Datacite
    addClaim

    This Research product is the result of merged Research products in OpenAIRE.

    You have already added works in your ORCID record related to the merged Research product.
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archive ouverte UNIG...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      Archive ouverte UNIGE
      Doctoral thesis . Thesis . 2021
      Archive ouverte UNIGE
      Doctoral thesis . 2021
      Data sources: Datacite
      addClaim

      This Research product is the result of merged Research products in OpenAIRE.

      You have already added works in your ORCID record related to the merged Research product.
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Trbušić, Željko;

    Doktorska disertacija naslovljena Metode analize i optimizacije procesa optičkog prepoznavanja znakova u arhivskim informacijskim sustavima izrađena je s ciljem istraživanja tehnologije optičkog prepoznavanja znakova (OCR) i njene primjene u okviru izgradnje i unapređenja arhivskih informacijskih sustava. Ova tehnologija pripada u šira područja proučavanja tehnologije računalnog vida, umjetne inteligencije i prepoznavanja uzoraka koja omogućuju računalima, strojevima i robotima da percipiraju analogne informacije iz okoline te ih koriste u vlastitom radu. S obzirom na veliku količinu tekstualnih informacija koje arhivi pohranjuju, potrebno je osmisliti model upravljanja, implementacije i evaluacije optičkog prepoznavanja znakova kojim će se ostvariti korištenje ove tehnologije na vjerodostojan, dugoročno održiv i optimalan način. Izgradnja takvog metodološkog procesa započinje proučavanjem radnog okruženja i vanjskih utjecaja čije zakonitosti određuju mogućnost i način implementacije. Obrađen je povijesni razvoj ove tehnologije koji prikazuje razvoj od samih početaka pa sve do suvremenih sustava koji koriste usluge u oblaku i mehanizme potpomognute umjetnom inteligencijom. Također je pružen pregled svih tehnoloških aspekata koji utječu na proces optičkog prepoznavanja znakova, od analize specifičnosti arhivskoga gradiva koje se prepoznaje, tipografskih elemenata slovnih oznaka, uređaja kojima se obavlja digitalizacija i povezanih formata prijenosa slikovnih datoteka do formata prijenosa računalno kodiranog teksta i načina kodiranja znakova. Obrađen je OAIS referentni model na temelju kojeg su prikazane mogućnosti implementacije optičkog prepoznavanja znakova na konceptualnoj razini, a predstavljena su i dva funkcionalna arhivska informacijska sustava koja koriste OCR u svakodnevnom poslovanju. Sustav zaklade Hathi definira proces prepoznavanja na razini komunikacije sa stvarateljima dok informacijski sustav Nacionalne medicinske knjižnice SAD-a obavlja postupak prepoznavanja izgradnjom unutrašnjih tehnoloških rješenja. Identificirani su elementi faza procesa optičkog prepoznavanja znakova koji omogućuju provođenje evaluacijskih metoda te unapređenje sustava u svim njegovim segmentima. U sklopu procesa evaluacije, ključnog za provođenje svrsishodnih i sistematički značajnih istraživanja prikazanih u ovom radu, definirani su koraci testiranja, mjerne jedinice te su detaljno predstavljeni ISRI analitički alati za evaluaciju OCR-a. iv Posljednji dio rada predstavlja rezultate i analizu evaluacije provedene na arhivskom gradivu na hrvatskom i engleskom jeziku. Testiranja su organizirana u tri radne okoline koje obuhvaćaju širok spektar arhivskoga gradiva i kojima se donose zaključci koji omogućuju optimizaciju procesa optičkog prepoznavanja znakova u svih njegovim fazama. Promatraju se postignute financijske i vremenske uštede, ali također i vjerodostojnost evaluiranog procesa te informacijska vrijednost produkta prepoznavanja. Testiranja, obavljena ISRI sustavom, obuhvatila su i temeljne statističke analize koje se mogu upošljavati ne samo kao dio evaluacije procesa optičkog prepoznavanja, već i za evaluaciju cjelokupnog sustava u svim njegovim segmentima. Ovaj rad polazi iz perspektive koja ne traga za savršenim sustavom niti besprijekorno implementiranim procesom, već se, pomalo paradoksalno za kvantitativnu analizu koja je temelj provedenih eksperimenata, dokazuje kako se i nesavršena tehnologija kao što je OCR može upotrijebiti u području upravljanja arhivskim gradivom na sustavan i optimalan način koji doprinosi povećanju iskoristivosti pohranjenog gradiva i podiže povjerenje koje korisnici imaju u arhive i arhivsku zajednicu. The goal of the Ph.D. thesis titled Methods for Analysis and Process Optimisation of Optical Character Recognition in Archival Information Systems is to investigate the optical character recognition (OCR) technology and its application in the context of the development and upgrading of archival information systems. The study of OCR technology belongs to the field of computer vision, artificial intelligence, and pattern recognition because it enables computers, machines, and robots to perceive their surroundings and use the collected data in their operative environment. Archives deal with a lot of textual data and the use of OCR delivers many benefits to the management of archival records. It is, therefore, necessary to build a model that can enable its trustworthiness, long-term sustainability, and optimisation. The development of such methodology begins with the research of the working environment and the variables that surround the process of optical character recognition and that can have a great impact on the implementation procedure. In this context, this thesis delivers historical information about the development of OCR, but also it describes the modern use of OCR which is centred around cloud-based solutions and artificial intelligence. The variables presented are concerned with the technological surroundings of the OCR process: the archival materials which are the recognition subject, typography which plays a central role in the ability to “read” the printed text, devices which are used in the digitization process, image file formats and compression standards, and text file formats and the text encoding standards. The thesis analyses three archival information systems: OAIS reference model (OAIS RM), HathiTrust digital library, and the information system of National Library of Medicine (NLM). In the context of OAIS RM, the method of OCR implementation is delivered on a conceptual level, the HathiTrust system defines the process of recognition on the level of communication with the information producers, and the NLM constructed an in-house OCR process which is analysed in detail. Next, the four phases of OCR implementation process are introduced. They enable the implementation of evaluation procedures that are essential in the further development of archival information systems. The evaluation process, the key to the purposeful and systematic research presented in this thesis, is defined, and its main steps and units of measurement are presented as well as The ISRI Analytic Tools for OCR Evaluation. The last section of the thesis presents the results of the evaluation process that was conducted using archival materials in Croatian and English languages. The testing process was vi organised in three separate operating environments which encompass a broad spectrum of archival materials, and which deliver conclusions that can benefit the optimisation of optical character recognition process in every segment. The research investigates financial and timerelated savings but also addresses the concepts of trustworthiness and information value of the finished product. The evaluation process was conducted using The ISRI Tools and it comprised of fundamental statistical analysis that can be used not only in the evaluation of OCR but is useful in the broader evaluation of archival information systems. This thesis is based on a principle that perfect archival information system or flawlessly implemented OCR process should not be the main goal of archival endeavours (even though the quantitative analysis, which is the main device used throughout the research, could suggest otherwise). The OCR technology is not capable of delivering perfect results of the recognition process, but it can nevertheless be used in the field of management of archival materials if its performance is measured, optimised, and systemised. The results can positively influence the usability of stored archival data and elevate the trust that users have in the archives and the archival community.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao ODRAZ - Open Reposit...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    https://doi.org/10.17234/diss....
    Thesis . 2022 . Peer-reviewed
    Data sources: Crossref
    addClaim

    This Research product is the result of merged Research products in OpenAIRE.

    You have already added works in your ORCID record related to the merged Research product.
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao ODRAZ - Open Reposit...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      https://doi.org/10.17234/diss....
      Thesis . 2022 . Peer-reviewed
      Data sources: Crossref
      addClaim

      This Research product is the result of merged Research products in OpenAIRE.

      You have already added works in your ORCID record related to the merged Research product.
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Huang, Bidan;

    Modular approaches are widely used methods in AI and engineering. This approach reduces the difficulty of solving a complex problem by subdividing the problem into several smaller parts, i.e. modules, and tackle each independently. In this dissertation, we show how modular approaches can simplify grasping and manipulation problems of service robots. We use the modular approach to tame the difficulties in solving three main research problems in this field: grasp planning, object manipulation and reach motion planning. Different from industrial controlled environments, service robots have to handle abrupt changes and uncertainties occurring in dynamic and cluttered human centered environments. Planning behaviours in such an environment needs to be fast and adaptive to changing context. Programming robot with adaptive behaviours usually is a difficult task and takes a long time. By adopting modular approaches, the task difficulty is reduced as well as the programming time.The proposed approach is based on the method of imitation learning, sometimes referred to as the Programming by Demonstration (PbD). In this framework, we first let human or robot demonstrates possible solutions of the problem. After collecting the demonstrations, we extract multiple modules from the data. Each module represents a part of the system and their corresponding demonstrations are modeled with a statistical method. According to the environment condition, a set of appropriate modules are chosen to provide the final solution.In this dissertation, we present three different modular approaches in tackling three subareas in robot grasping and manipulation: grasp planning, object manipulation adaptive control and planning reaching motions. In Chapter 3, we propose a fast method for computing grasps for known objects and extend this method by a modular approach to work with novel objects. We implemented this method with two different robot hands: the Barrett hand and the iCub hand, and show that the computation time is always in the millisecond scale. In Chapter 4, we present our modular approach in extracting adaptive control strategies using human demonstrations of object manipulation tasks. We successfully implement this method to teach a robot an manipulation tasks: opening bottle caps. In Chapter 5, we present a method to model reachingmotion primitives that would allow humans to modulate robot motions by verbal commands.This method is implemented to perform a bimanual lifting task. We show that the method can generate new motions to lift boxes with different sizes and at different locations. These three studies show that robot grasping and manipulation problems can indeed be divided into modules, the solutions of which can be combined to provide a whole solution to the original problems. With modular approaches, new solutions for novel scenarios can be integrated to the original solution without difficulty. This approach allows robots to accumulate their skills. In summary, we contribute three modular and learning hybrid methods in this dissertation: (1) a fast method for grasp planning; (2) a method to extract human manipulation skills from demonstrations for object manipulation; (3) a method to recognize motions and generatemotions according to human commands.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao University of Bath's...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao University of Bath's...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Mangnus, E.P.M.;

    Abstract Farmer organisations have become the centrepiece of pro-poor market development strategies in Africa. Assumed to facilitate scale, quality of produce and professionalism they are regarded as a solution for farmers that are hampered from economic opportunities. In Mali public as well as private actors encourage farmers to trade through one specific organisational form, namely cooperatives. Nevertheless, in reality the landscape is much more diverse. A wide array of organisations can be observed and the models stimulated by external actors do not always succeed in improving the position of farmers. Considering the gap in knowledge, this dissertation poses the following question: How and in what ways do people organise trading of cereals in South Mali? The central aim of this thesis is to contribute to a better understanding of organisation of food trade in rural markets, by examining how and in what ways people in South Mali organise trade in cereals and sesame. Trading includes the procurement of cereals or sesame, organisation of finance, information gathering, bargaining, the organisation of transport and selling. Organisation of trade has been studied from different angles. Studies taking a structural approach explain organisation as emerging from context. Studies that approach organisations from an instrumental perspective regard organisation as a means for efficiently solving a shared problem. Both strands provide insights for understanding organisational functioning and performance but leave open questions regarding how people organise to realise trading and why this results in organisational diversity. This thesis examines organising trade by adopting a practice-oriented approach, which has as entry point that organisation takes shape in the realization of everyday practice. Focus is on what people actually do to realise trading. Two case study organisations are central to the study. Both are typical for how trade in rural Mali is organised. The first is a cooperative engaged in the trading of sesame in Miena, South-East Mali. The second is a cereal trading network in N’golobougou, in the centre of South Mali. Both provide an example of people collaborating and coordinating to perform trading and as such are excellent cases for tracing the formation of organisational traits that explain performance and diversity in trading cereals in South Mali. Empirical Chapters Chapter 2 presents a historical overview of how the organisation of trade of cereals and cotton at farmer level developed in Mali on extensive literature research. It focuses on the efforts of the Malian state to organise rural society, how producers responded, and how the interaction between the two shaped organisation. The analysis starts in the 18th century, in which cotton and cereal trade was intertwined and likewise organised. From the colonial period onwards, organisation dynamics in food and export crops evolved distinctly. For both sectors the most important events and changes are detailed. The chapter found that the political economy at stake influences the set of organisational options people can choose from and that imposed models rarely get adopted in practice. Chapter 3 traces the emergence and development of the sesame cooperative in Miena. It builds on two strands of literature that emphasize the specific socio-historical context of an organisation. The first body highlights the resilience of existing relations and institutions by showing how these get reproduced in new organisations. The second body of literature claims that individuals involved in collective action have the capacity to influence which institutions get reproduced and which new ones get adopted, also called ‘blended’. To collect the data 35 in depth interviews with cooperative members, (ex) officials from the cotton company CMDT, local officers and NGO-workers active in the research location were collected over a period of three months. Time was spent at the weekly market, in village meetings and at peoples’ homes. Moreover 20 informal talks with villagers and traders on the market were afterwards noted down. Three distinct processes - the historical organisation of cotton farmers, the interaction between state and society and the local trade practices - are found to underlie the current functioning of the cooperative. This chapter shows how both the reproduction and blending happen purposively; in order to (continue) performance in trading. Chapter 4 addresses the question: How do traders in Mali perform collectively? Following the methodological orientation, labelled as technography, the chapter zooms in on the use of skills and know-how by a group of people coordinating the collection and trade of cereals. Data were collected through 24 in-depth interviews with traders and 37 semi-structured interviews with pisteurs and interviews with key resource persons. Moreover, trade practices were observed during 10 market days in a row. The analysis shows that the success of the traders’ network can be explained by: (i) the use of skills and know-how for adapting to changing economic, social and environmental contexts; (ii) the network’s ability to select capable people and distribute the many trading tasks; and (iii) the network’s effective governance, based on a strict code of conduct specific to each role. The chapter shows how rules steering the distribution of tasks and collaboration in the traders’ network emerge out of the daily practice of trading. Chapter 5 uses evidence from a network of cereal traders in the market of N’golobougou to examine how the characteristics of traders, their positions within different networks, and different kinds of relationships between traders influence performance in trading. 26 traders were extensively interviewed on the history, functioning and the size of their business. Semi-structured interviews focused on their relations in trading. A social network analysis (SNA) is applied to describe the positions of individual traders in the networks and the type of relations that link them. Qualitative analysis is used to understand the motivations underlying their position and collaboration. The findings demonstrate that trading is a complex and multifaceted activity. Within the network distinct networks have emerged to organise the collection of cereals, to arrange finance and to acquire information. Pre-existing social relations facilitate trading but do not guarantee individual success. Proven ability and reputation are equally important in cooperation and relate to the way powerful members of the network acquire a central position, which goes stepwise and takes time. Conclusions Collaboration is crucial for trading under the circumstances of rural Mali. Both case studies highlight the role of key individuals who spotted opportunities and mobilised others to collaborate. Different trading activities require specific skills, know-how and tools and people tend to specialise. Most skills are acquired in practice; few of them can be taught by instruction. Accordingly to what is present in terms of capacities, people’s availability and know-how, and tools, groups will distribute tasks among their members. People also need to coordinate how skills, know-how and tools are distributed over time and space. Trading in South Mali requires bridging of long distances, adaptation to seasonality, securing finance and transport, and finding buyers. The temporal dimension of trading is visible in how traders adapt to seasonality and to how it is adjusted to people’s availability in time. Trading is also spatially situated. Poor infrastructure and long travel distances are characteristic of rural South Mali. Both the cooperative as well as the trading network therefore have a layered structure of actors close to the field, actors in the central village or market where the sesame or cereals are collected, and actors in the city to which the sesame or cereals are transported. People do not organise in a random constellation. The range of options they can choose from are importantly influenced by the institutions active in decision-making at village level, the relationship between state and rural communities, the social networks people operate in, and the historically developed rules and regulations in market transactions. Also, previous ways of organising play a role in today’s way of organising. The empirical analyses demonstrate that organising trade is ‘path dependent’. Nevertheless, people only reproduce those procedures, habits and actions that are deemed necessary to perform. They blend old and new ways of coordination and collaboration to allow the practice of trade to continue. The findings in this thesis show that collaboration does not rely on social relations only. Cooperating to achieve a practical end, i.e. to trade, is also skill and competence based. Organisational sustainability depends on how grouped or networked actors coordinate actions in response to changing circumstances and opportunities. Hence, organisational diversity can be understood from the fact that organisation emerges from a situated practice. Recommendations Organisation in trade emerges gradually and adaptively from what is present in terms of skills, capacities, know-how and experience in trading. As this is situation specific it is essential to recognize the uniqueness of each organisational form and suggests reconsidering the one-size-fit-all approaches often promoted in development interventions. Imposed organisational structures may be enabling to some extent but they leave little room for exploring the range of possible ways to achieve trading. For understanding how people organise trade it is important to understand the way they perform the actual practice in the specific social and material circumstances. The empirical chapters argue in favour of tutor–apprentice relations between experienced actors and new members, leaving decision-making power and rule setting in the hands of the most experienced traders. Current development projects supporting links between farmers and buyers often aim to be ‘inclusive’ and ‘pro-poor’, meaning that they should be accessible to anyone. The field research shows that organisations in trade in Mali are very selective in membership to assure the group achieves its objectives. Governments and other development actors should be aware of the trade-offs between inclusive, democratic organisational models, and effectiveness and performance in trading.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao NARCIS; Research@WURarrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    NARCIS; Research@WUR
    Other literature type . Doctoral thesis . 2015
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao NARCIS; Research@WURarrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      NARCIS; Research@WUR
      Other literature type . Doctoral thesis . 2015
Powered by OpenAIRE graph
Advanced search in Research products
Research products
arrow_drop_down
Searching FieldsTerms
Any field
arrow_drop_down
includes
arrow_drop_down
The following results are related to Rural Digital Europe. Are you interested to view more results? Visit OpenAIRE - Explore.
10 Research products
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Crivelli, Pramila Adeline;

    In recent decades, the world trading system has witnessed the proliferation of both, preferential trade agreements (PTAs) and Non-Tariff Measures (NTMs). This dissertation contributes to our understanding of the impact of the two phenomena by: (i) examining the effect of PTAs on the multilateral system, and (ii) assessing the impact of Sanitary and Phytosanitary (SPS) measures on market entry and international trade flows. The first two chapters examine the questions: what is the impact of preferential trade liberalization on external protection? The first chapter provides evidence that the impact of PTAs is heterogeneous across countries and argues that the effect is mainly driven by tariff revenue considerations. The second chapter explores the role played by the enhanced market opportunities conferred by regional agreements on external protection. The last chapter uses restrictive product standards to assess the SPS impact on the extensive and the intensive margin of trade in agricultural and food products.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archive ouverte UNIG...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Archive ouverte UNIGE
    Doctoral thesis . Thesis . 2015
    Archive ouverte UNIGE
    Doctoral thesis . 2015
    Data sources: Datacite
    addClaim

    This Research product is the result of merged Research products in OpenAIRE.

    You have already added works in your ORCID record related to the merged Research product.
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archive ouverte UNIG...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      Archive ouverte UNIGE
      Doctoral thesis . Thesis . 2015
      Archive ouverte UNIGE
      Doctoral thesis . 2015
      Data sources: Datacite
      addClaim

      This Research product is the result of merged Research products in OpenAIRE.

      You have already added works in your ORCID record related to the merged Research product.
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Niccolò Dematteis;

    Collection of published papers on the characterisation of monitoring techniques: image cross-correlation and terrestrial rada inteferometry. Coupling of techniques and application on glacial case studies

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao CNR ExploRAarrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    CNR ExploRA
    Doctoral thesis . 2019
    Data sources: CNR ExploRA
    ResearchGate Data
    Thesis . 2020
    Data sources: Datacite
    addClaim

    This Research product is the result of merged Research products in OpenAIRE.

    You have already added works in your ORCID record related to the merged Research product.
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao CNR ExploRAarrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      CNR ExploRA
      Doctoral thesis . 2019
      Data sources: CNR ExploRA
      ResearchGate Data
      Thesis . 2020
      Data sources: Datacite
      addClaim

      This Research product is the result of merged Research products in OpenAIRE.

      You have already added works in your ORCID record related to the merged Research product.
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Antonić, Aleksandar;

    The Internet of Things (IoT) is a concept that connects things and objects from the environment and everyday life into a global network and serves as a foundation for development of advanced, self-configuring services adapted to the user context. The thesis presents the CUPUS middleware, an open-source publish/subscribe solution for IoT environment. The CUPUS middleware is compared with other publish/subscribe solutions, and the thesis provides classification of publish/subscribe solutions reported in the literature in seven groups based on their capabilities and characteristics. The thesis proposes analytical modelling of aggregate input load of IoT services and modelling of processing times of publish/subscribe components using well-known distributions. Finally, a process to create a Queueing Theory model of publish/subscribe solution is proposed and demonstrated on the CUPUS middleware. The output of the model that estimates the processing time at individual component or in the system overall is in accordance with the results that were collected during the experimental evaluation of the middleware. The scientific contribution of the proposed research in the doctoral thesis is the following: - a taxonomy of cloud-based publish/subscribe systems for continuous processing of sensor data streams in the area of the IoT; - analytical performance model of cloud-based publish/subscribe systems based on queueing theory; - verification method of the analytical performance model which compares modelling results with the observed publish/subscribe system. Internet stvari (IoT) je koncept koji povezuje stvari i objekte iz okoliša i svakodnevnog života u globalnu mrežu te omogućuje izgradnju naprednih, samo-konfigurirajućih usluga prilagođenih kontekstu korisnika. Rad predstavlja međuopremu CUPUS, rješenje otvorenog koda sustava objavi-pretplati za IoT. Međuoprema CUPUS uspoređuje se s drugim sustavima objavi-pretplati, a disertacija predstavlja klasifikaciju sustava objavi-pretplati iz literature u sedam skupina na temelju njihovih mogućnosti i karakteristika. U radu je predložen analitički model za određivanje ukupnog ulaznog opterećenja IoT usluga i modeliranje vremena obrade komponenti sustava objavi-pretplati pomoću poznatih distribucija. Predložen je proces stvaranja analitičkog modela temeljen na teoriji repova čekanja za sustave objavi-pretplati, a demonstriran je na međuopremi CUPUS. Rezultati analitičkih modela koji procjenjuju vrijeme obrade na pojedinačnoj komponenti ili u cjelokupnom sustavu u skladu su s rezultatima prikupljenim tijekom eksperimentalne evaluacije. U radu su ostvareni sljedeći doprinosi: - taksonomija sustava objavi-pretplati namijenjenih računalnom oblaku za kontinuiranu obradu tokova senzorskih podataka u području Interneta stvari; - analitički model performanci sustava objavi-pretplati namijenjenih računalnom oblaku koji se temelji na teoriji repova čekanja i posluživanja; - metoda verifikacije analitičkog modela performanci koja uspoređuje rezultate modeliranja s opaženim performancama sustava objavi-pretplati.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao FER Repositoryarrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao FER Repositoryarrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Zapata, Emilio Armando;

    El presente proyecto de investigación que lleva por título “Capacidades dinámicas que impactan la productividad a través de la transformación digital de las instituciones de educación superior”, se realizó con la finalidad de comprender cómo las capacidades dinámicas de innovación y aprendizaje impactan la productividad a través de la transformación digital de las instituciones de educación superior. En la actualidad, la globalización de la información, la tecnología y sus nuevas tendencias están potencializando un cambio en las organizaciones, y las instituciones de educación superior no son ajenas a esta transformación, debido a su papel fundamental en la sociedad. La disyuntiva que afrontan muchas instituciones de educación superior, es que deben encontrar una manera de ajustarse a estos cambios manteniendo ventajas competitivas sostenibles; por ello, las instituciones deben identificar y valorar las capacidades dinámicas que impactan la productividad a través de la transformación digital en las mismas, de manera lógica y estratégica, para dar respuesta oportuna a estos nuevos procesos. El objetivo que se busca conseguir, a través del presente estudio, es explicar como las capacidades dinámicas a través de la transformación digital impactan la productividad de las instituciones de educación superior. Para ello se utilizó un enfoque cuantitativo dentro del paradigma positivista, con un alcance explicativo-correlacional y un diseño no experimental - transeccional. Los datos fueron recopilados a través de una encuesta estructurada donde participaron personas, que están en el nivel estratégico de las instituciones y algunos tácticos (rectores, vicerrectores académicos, vicerrectores administrativos y/o financieros, vicerrectores de investigación, vicerrectores de extensión, jefes de planeación y jefes de sistemas), de dieciocho (18) instituciones universitarias públicas colombianas. Los resultados fueron recabados y procesados, con el fin de comprobar el cumplimiento de las hipótesis planteadas, a través de la herramienta informática SPSS Statistics versión 28 y SPSS AMOS versión 28. El análisis de los resultados se realizó a través de un análisis estadístico descriptivo y un análisis estadístico multivariante con el fin de contrastar las relaciones causales entre las variables del modelo propuesto. El método elegido para analizar y modelar los datos fue el modelo de ecuaciones estructurales. Como resultados se encontraron que: i) la mayor parte de las instituciones universitarias públicas que desarrollan capacidades dinámicas de innovación han obtenido buenos resultados por su implementación; ii) la mayor parte de las instituciones universitarias públicas que desarrollan capacidades dinámicas de aprendizaje han obtenido buenos resultados por su implementación; iii) la mayor parte de las instituciones universitarias públicas han realizado procesos de transformación digital; iv) la capacidad dinámica de innovación y la capacidad dinámica de aprendizaje impactan positivamente en la transformación digital de las instituciones de educación superior; v) la transformación digital impacta positivamente la productividad en las instituciones de educación superior. Dentro de las principales conclusiones se tiene que al modelo teórico propuesto, representa cabalmente las diferentes dimensiones de la capacidad dinámica de innovación, la capacidad dinámica de aprendizaje, la transformación digital y la productividad en las instituciones de educación superior. Así mismo, se resalta la baja influencia que se muestra en el modelo teórico de las tecnologías digitales y los clientes en la transformación digital, lo que indica que todavía existe una baja incorporación de las tecnologías digitales en las instituciones de educación superior, y un grado de satisfacción bajo de los clientes por la incorporación de las mismas en los servicios que ellos utilizan de la institución. This research project entitled "Dynamic capacities that impact productivity through the digital transformation of higher education institutions"was carried out with the purpose of understanding how the dynamic capabilities of innovation and learning impact productivity through the digital transformation of higher education institutions. Nowadays, the globalization of information, technology and its new trends are potentiating a change in organizations, and higher education institutions are not strangers to this transformation, due to their fundamental role in society. The dilemma facing many higher education institutions is that they must find a way to adjust to these changes by maintaining sustainable competitive advantages; therefore, institutions must identify and assess the dynamic capabilities that impact productivity through digital transformation, logically and strategically, in order to respond in a timely manner to these new processes. The objective sought to be achieved, through the present study, is to explain how dynamic capabilities through digital transformation impact the productivity of higher education institutions. For this purpose, a quantitative approach within the positivist paradigm was used, with an explanatory-correlational scope and a non-experimental - cross-sectional design. The data were collected through a structured survey with the participation of people at the strategic and some tactical levels of the institutions (rectors, academic vice-rectors, administrative and/or financial vice-rectors, vice-rectors of research, vice-rectors of extension, heads of planning and heads of systems), from eighteen (18) Colombian public university institutions. The results were collected and processed, in order to verify the fulfillment of the hypotheses proposed, through the SPSS Statistics version 28 and SPSS AMOS version 28 software tools. The analysis of the results was carried out through a descriptive statistical analysis and a multivariate statistical analysis in order to contrast the causal relationships between the variables of the proposed model. The method chosen to analyze and model the data was structural equation modeling. The results found that: i) most of the public university institutions that develop dynamic innovation capacities have obtained good results for their implementation; ii) most of the public university institutions that develop dynamic learning capacities have achieved good results through their implementation; iii) most of the public university institutions have carried out digital transformation processes; iv) the dynamic capacity for innovation and the dynamic capacity for learning have a positive impact on the digital transformation of higher education institutions; v) digital transformation positively impacts productivity in higher education institutions. Among the main conclusions, the proposed theoretical model fully represents the different dimensions of the dynamic capacity for innovation, dynamic learning capacity, digital transformation and productivity in higher education institutions. Likewise, the low influence shown in the theoretical model of digital technologies and customers in digital transformation is highlighted, which indicates that there is still a low incorporation of digital technologies in higher education institutions, and a low degree of customer satisfaction with the incorporation of these technologies in the services they utilize from the institution.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositorio Universi...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Repositorio Universidad Simón Bolívar
    Doctoral thesis . 2022
    License: CC BY NC ND
    addClaim

    This Research product is the result of merged Research products in OpenAIRE.

    You have already added works in your ORCID record related to the merged Research product.
    0
    citations0
    popularityAverage
    influenceAverage
    impulseAverage
    BIP!Powered by BIP!
    more_vert
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repositorio Universi...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      Repositorio Universidad Simón Bolívar
      Doctoral thesis . 2022
      License: CC BY NC ND
      addClaim

      This Research product is the result of merged Research products in OpenAIRE.

      You have already added works in your ORCID record related to the merged Research product.
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Bossu, Julie;

    The forests of French Guiana occupy a central part of the region’s potential resource base, but as yet remain almost completely unexploited. This stems from the forestry industry struggling to valorize wood stocks of a high diversity with an extremely heterogeneous distribution. Indeed, identifying essences for future propagation is an issue of both environmental and socio-economic importance for the region. Bagassa guianensis Aubl. and Cordia alliodora (Ruiz & Pav.) Oken. go against conventional models, in that they display the life history characteristics of rapid growth and wood of high quality, and thus are species of high potential for future plantations. Firstly, our study of growth characteristics reveals a defined strategy half way between long-lived species and pioneer species. It is the variability of basic density of wood which is a key trait allowing for such a development, favoring rapid growth in initial years whilst allowing for tree longevity. Secondly, the analysis of a range of wood properties (shrinkage, modulus of elasticity, durability) in relation to tree growth confirms the technologic quality of the two species. It also enables the emergence of new results like the effect of extractives on wood stability, the control of growth as a result of basic density variation, the evolution of leaf traits throughout tree development or the improvement of trunk maintenance thanks to interlocked grain. The knowledge gained in relation to the developmental traits of these two species, and to the quality of their wood allows for the elaboration of plantation projects and what will be required for their success. The results of this study can orientate future studies on novel species for commercialization in French Guiana.; La ressource forestière en Guyane occupe une place maîtresse au sein de la région et est encore majoritairement préservée, mais la filière bois parvient difficilement à valoriser la biodiversité locale en raison de l’hétérogénéité de la ressource. Identifier les essences à planter demain représente aujourd’hui un enjeu à la fois environnemental, économique et social pour la Guyane. Bagassa guianensis Aubl. et Cordia alliodora (Ruiz & Pav.) Oken. vont à l’encontre des modèles usuels en associant vitesse de croissance et qualité du bois et sont identifiées comme prometteuses pour la plantation. Dans un premier temps, l’étude de la dynamique de croissance des deux espèces révèle un modèle écologique singulier, à la fois pionnières et longévives. La variabilité de l’infradensité dans l’arbre est l’élément clé qui permet un tel développement, favorisant une croissance rapide dans les premières années tout en assurant la longévité de l’individu. Dans une seconde partie, l’analyse d’un large panel de propriétés du bois (retrait, module, durabilité) en lien avec le développement de l’arbre confirme les qualités technologiques des deux espèces et permet l’émergence de résultats novateurs tels que le rôle des extractibles sur le retrait, le contrôle de la croissance grâce aux variations d’infradensité, l’évolution des traits foliaires au cours de l’ontogénie ou encore la mise en place de contrefil dans l’arbre pour assurer son maintien. La connaissance acquise vis-à-vis du mode de développement de ces deux espèces et des facteurs influençant la qualité de leur bois permet aujourd’hui de définir avec plus de précision le cadre d’un projet de plantation et les conditions de son succès. Les résultats de cette étude permettent finalement d’orienter la recherche de nouvelles espèces d’avenir pour la plantation en Guyane.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Agritroparrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Agritrop
    Thesis . 2015
    Data sources: Agritrop