The recently coined term, Impact Startup, and its rising popularity on the global scene proves its importance as a subject of research. As startups are considered key players in changing the status quo and breaking barriers, they are considered crucial in overcoming some of the most evident issues of today. Utilizing an approach based on previously validated content analysis methods, this study aims to shine a light on the relatively unexplored topic by identifying the key qualities of Impact Startups. Looking into how these organizations communicate about themselves and comparing the findings with the compiled theoretical definition of Impact Startups, we can evaluate the alignment of theory with practice and gain a deeper understanding of the trending phenomenon. Finding that Impact Startups should effectively change the social and/or environmental status quo we conclude that they should be categorized as, Social Impact Startups, Environmental Startups, and Total Impact Startups. Further results of this investigation highlight the importance of distinguishing between Mature Impact Organizations and Impact Startups. This study contributes extensively to the understanding we have of Impact Startups and lays the foundation for further research and establishing legitimate qualifications of Impact.

This thesis explores the environmental and social responsibilities being increasingly shouldered by cement manufacturing sector and outlines a new approach for these companies to accept their responsibilities and to utilise professional approaches to address the economic, environmental and social dimensions of sustainable business. Managing these three dimensions in business translates corporate responsibility into an integrated responsibility for doing business profitably, ethically and in sustainable manner. This three-pronged approach is sometimes called the Triple Bottom Line. It helps companies to fulfil their more holistic Corporate Social Responsibility. A critical review of the literature led the thesis author to develop the theoretical framework for environmental and social reporting to proceed on TBL/CSR journey within the cement industry. Data were collected from TBL/CSR reports from cement companies on key environmental and social performances. Based upon those data, a questionnaire was developed to obtain more information from the leading worldwide cement companies. The combined results of the responses to the questionnaire and the quantitative data derived from the TBL/CSR reports were used to establish best practice benchmarks to serve as performance targets for the author¿s case study company, Oman Cement Company (OCC). The contribution to knowledge of this research is the summarisation and prioritisation of the cement industry¿s implementation of TBL/CSR management systems, which integrate the elements of TBL/CSR into their strategic plans and daily operational procedures. Guidelines were derived from the Global Reporting Initiative, the United Nations Global Compact and the new ISO 26000 standard, which promotes a new way of working towards innovation, value creation and incremental actions for transforming businesses to become more responsible. The contributions to practice of this research are the practical and procedural insights, gained by quantitative analysis of environmental and social indicators, into how cement companies are making improvements in their processes and products in response to climate change, economic, governmental regulations and social pressures for improvement. Based upon the findings, recommendations and timetables were developed and are being implemented within the OCC as it progresses on its TBL/CSR journey.

Abstract Task-Based Language Teaching has long been a method for education in different subjects. This study investigates the use of Task-Based Language teaching regarding vocabulary acquisition in English upper secondary/high school students. Through the use of a database, multiple scientific studies and research papers on vocabulary acquisition through TBLT have been included. This study contains the results of the use of TBL through similar teaching methods with the focus on vocabulary development in the L2 classroom. The findings show that studies have different results regarding what tasks to include but present a similar conclusion regarding what method to use; TBLT. The results also show that regardless of what task is used, communication could be beneficial and even played a big role in multiple studies where it increased students vocabulary acquisition. The conclusion of our study suggests that TBLT is an efficient method for developing vocabulary acquisition in upper secondary and high school students. All research papers analysed concluded that TBL and TBLT can be used as means for motivating students which aided the task engagement, thus helping develop their vocabulary acquisition.

The work for this thesis is in line with the field of Instrumentation for Particle Accelerators, so called Beam Diagnostics. It is presented the development of a series of electro-mechanical devices called Inductive Pick-Ups (IPU) for Beam Position Monitoring (BPM). A full set of 17 BPM units (16 + 1 spare), named BPS units, were built and installed into the Test Beam Line (TBL), an electron beam decelerator, of the 3rd CLIC Test Facility (CTF3) at CERN ¿European Organization for the Nuclear Research¿. The CTF3, built at CERN by an international collaboration, was meant to demonstrate the technical feasibility of the key concepts for CLIC ¿Compact Linear Collider¿ as a future linear collider based on the novel two-beam acceleration scheme, and in order to achieve the next energy frontier for a lepton collider in theMulti-TeV scale. Modern particle accelerators and in particular future colliders like CLIC requires an extreme alignment and stabilization of the beam in order to enhance its quality, which rely heavily on a beam based alignment techniques. Here the BPMs, like the BPS-IPU, play an important role providing the beam position with precision and high resolution, besides a beam current measurement in the case of the BPS, along the beam lines. The BPS project carried out at IFIC was mainly developed in two phases: prototyping and series production and test for the TBL. In the first project phase two fully functional BPS prototypes were constructed, focusing in this thesis work on the electronic design of the BPS on-board PCBs (Printed Circuit Boards) which are based on transformers for the current sensing and beam position measurement. Furthermore, it is described the monitor mechanical design with emphasis on all the parts directly involved in its electromagnetic functioning, as a result of the coupling of the EM fields generated by the beam with those parts. For that, it was studied its operational parameters, according the TBL specifications, and it was also simulated a new circuital model reproducing the BPS monitor frequency response for its operational bandwidth (1kHz-100MHz). These prototypes were initially tested in the laboratories of the BI-PI section¿Beam Instrumentation - Position and Intensity¿ at CERN. In the second project phase the BPS monitor series, which were built based on the experience acquired during the prototyping phase, the work was focused on the realization of the characterization tests to measure the main operational parameters of each series monitor, for which it was designed and constructed two test benches with different purposes and frequency regions. The first one is designed to work in the low frequency region, between 1kHz-100MHz, in the time scale of the electron beam pulse with a repetition period of 1s and an approximate duration of 140ns. This kind of test setups called Wire Test-bench are commonly used in the accelerators instrumentation field in order to determine the characteristic parameters of a BPM (or pick-up) like its linearity and precision in the position measurement, and also its frequency response (bandwidth). This is done by emulating a low current intensity beam with a stretched wire carrying a current signals which can be precisely positioned with respect the device under test. This test bench was specifically made for the BPS monitor and conceived to perform the measurement data acquisition in an automated way, managing the measurement equipment and the wire positioning motors controller from a PC workstation. Each one of the BPS monitors series were characterized by using this system at the IFIC labs, and the test results and analysis are presented in this work. On the other hand, the high frequency tests, above the X band in the microwave spectrum and at the time scale of the micro-bunch pulses with a bunching period of 83ps (12GHz) inside a long 140ns pulse, were performed in order to measure the longitudinal impedance of the BPS monitor. This must be low enough in order to minimize the perturbations on the beam produced at crossing the monitor, which affects to its stability during the propagation along the line. For that, it was built the high frequency test bench as a coaxial waveguide structure of 24mm diameter matched at 50¿ and with a bandwidth from 18MHz to 30GHz, which was previously simulated, and having room in the middle to place the BPS as the device under test. This high frequency test bench is able to reproduce the TEM (Transversal Electro-Magnetic) propagative modes corresponding to an ultra-relativistic electron beam of 12GHz bunching frequency, so that the Scattering parameters can be measured to obtain the longitudinal impedance of the BPS in the frequency range of interest. Finally, it is also presented the results of the beam test made in the TBL line, with beam currents from 3.5A to 13A (max. available at the moment of the test). In order to determine the minimum resolution attainable by a BPS monitor in the measurement of the beam position, being the device figure of merit, with a resolution goal of 5¿m at maximum beam current of 28A according to the TBL specifications. / García Garrigós, JJ. (2013). Development of the Beam Position Monitors for the Diagnostics of the Test Beam Line in the CTF3 at CERN [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/34327

[EN] The Compact Linear Collider (CLIC) is an electron-positron collider conceived for the study of High-Energy Physics in the TeV center of mass energy region, is based on a two-beam operation principle: instead of using active elements (klystrons), the necessary RF power to accelerate the Main Beam (MB) is obtained from the deceleration of a high-current, moderate energy Drive Beam (DB) in the so-called Power Extraction and Transfer Structures (PETS). These structures emit an RF signal of about 130 MW power at 12 GHz. As this frequency is above the cut-o ff frequency of the fundamental mode for the specified beam pipe dimensions (7.6 GHz), the inference propagates from the PETS to the neighboring devices, including the Beam Position Monitors (BPM). According to the CLIC Conceptual Design Report (CDR), an ef ficient beam position monitoring system for the CLIC DB decelerator needs to meet the following requirements: - It should be as simple and economic as possible, as 41580 units are required, amounting to 75% of all CLIC BPMs. - The signal processing scheme should not be a ffected by the PETS interference. This rules out processing the signals at the beam bunching frequency (12 GHz). - The resulting position signal should detect changes in the beam position whose duration is 10 ns or longer. - The required spatial resolution is 2 um for a 23 mm diameter vacuum pipe. - Wide dynamic range: the electronic acquisition system must be able to process signals with extreme levels, induced by either very high (100 A) or very low (3 A) current beams. This PhD thesis describes the electromagnetic and mechanical design of the first prototype BPM developed for the CLIC Drive Beam and its characterization tests in laboratory and with beam. The first two chapters introduce the CLIC project and review the state-of-the-art beam position monitoring techniques. Chapter 3 presents the design of the BPM. The stripline technology has been selected, as it is the only one among the most commonly used BPM techniques to present a suitable frequency response to filter out the RF interference caused by the PETS. Choosing an appropriate length for the electrodes, it is possible to tune one the periodic notches in the stripline frequency response to 12 GHz. The influence of di erent electromagnetic and geometrical aspects is also studied, such as beam coupling impedance or the ratio between longitudinal and transverse dimensions. The design of the electronic acquisition system is presented in Chapter 4, considering the project requirements in terms of resolution (2 u m), accuracy (20 um) and time resolution (10 ns). Due to the high amount of units required, the number of electronics components has been minimized. As the designed signal processing scheme is based on charge integration, it can be adapted to di erent stripline pick-ups by simply modifying the attenuator settings according to the required output signal levels. The laboratory characterization tests of the prototype stripline BPM, in the low and the high frequency ranges, performed with a thin wire and a coaxial waveguide, respectively, are described in Chapter 5. The measurement results are compared with the theoretical estimation and the electromagnetic field simulations. In addition, the high-frequency test reveals that the first prototype stripline BPM does not provide su cient suppression of the 12 GHz PETS RF interference. An additional study proposed several modifications and guidelines for a second prototype stripline BPM. Finally, Chapter 6 presents the beam tests of the prototype stripline BPM at the CLIC Test Facility 3 (CTF3) in the Test Beam Line (TBL), a scaled version of the CLIC Drive Beam decelerator. Two types of tests were performed: linearity/sensivity and resolution. These results are compared to the ones in the laboratory characterization tests. An upper bound of the resolution is estimated performing a Singular Value Decomposition (SVD) analysis. / [ES] El Colisionador Lineal Compacto (Compact Linear Collider, CLIC), un colisionador de electrones y positrones concebido en el CERN para el estudio de la Física de Altas Energías en la región de los TeV, se basa en un principio de funcionamiento de doble haz: en lugar de emplear elementos activos (klystrons) para proporcionar la potencia RF requerida para acelerar el haz principal (Main Beam, MB), ésta se obtiene de la deceleración de un haz secundario (Drive Beam, DB), de alta corriente y energía moderada, en las llamadas estructuras de extracción y transferencia de potencia (Power Extraction and Transfer Structures, PETS). Estas estructuras emiten una señal interferente RF de más de 130 MW de potencia a 12 GHz, que, por estar localizada en una frecuencia superior a la de corte del modo fundamental en el tubo de vacío del haz (7.6 GHz), se propaga por éste hacia los dispositivos adyacentes, entre los cuales se encuentran los sistemas de monitorización de la posición (Beam Position Monitor, BPM). De acuerdo con el informe conceptual de diseño de CLIC (Conceptual Design Report, CDR) , un sistema eficiente de monitorización de la posición del haz en el decelerador del haz secundario deberá cumplir los siguientes requisitos: - Debe ser lo más sencillo y económico posible, ya que se precisan 41580 unidades: el 75% de todos los BPMs de CLIC. - El procesado de señal en el sistema de adquisición deberá ser inmune a la interferencia generada en las PETS. Esto excluye la solución habitual de procesar las señales del BPM a la frecuencia de pulsado del haz (12 GHz). - La señal de posición resultante del procesado debe ser capaz de detectar cambios en la posición del haz de duración igual o mayor a 10 ns (resolución temporal). - La resolución espacial requerida es de 2 um para un tubo de vacío de 23 mm de diámetro, con una calibración precisa. - Amplio rango dinámico: el sistema electrónico de adquisición del BPM debe poder resistir los altos valores de señal provocados por los casos de desviación extrema del haz nominal (se contempla una desviación máxima de la mitad del radio del tubo), así como detectar las señales inducidas por las configuraciones de haz con menor carga de todas las previstas, cuyos niveles serán muy débiles. / [CA] El Col·lisionador Lineal Compacte (Compact Linear Collider, CLIC), un col·lisionador d'electrons i positrons concebut per l'estudi de la Física d'Altes Energies a la regió dels TeV (energía del centre de massa), es basa en un principi de funcionament de doble feix:en lloc de fer servir elements actius (klystrons) per proporcionar la potència RF requerida per accelerar el feix principal (Main Beam, MB), aquesta s'obtè de la desacceleració d'un feix secundari (Drive Beam, DB), d'alt corrent i energia moderada, a les anomenades estructures d'extracció i transferència de potència (Power Extraction and Transfer Structures, PETS). Aquestes estructures emeten una senyal interferent RF de més de 130 MW de potència a 12 GHz, que, pel fet d'estar localitzada a una freqüència superior a la de tall del mode fonamental al tub de buit del feix (7.6 GHz), es propaga a través d'aquest fins els dispositius adjacents, entre els quals trobem els sistemes de monitorització de la posició (Beam Position Monitor, BPM). D'acord amb l'informe conceptual de disseny de CLIC (Conceptual Design Report, CDR), un sistema eficient de monitorització de la posició del feix al desaccelerador del feix secundari haurà de complir els següents requisits: ¿ - Ha de ser el més senzill i econòmic possible, ja que es necessiten 41580 unitats: el 75% de tots els BPMs de CLIC. ¿ - El processat de la senyal al sistema d'adquisició haurà de ser inmune a la interferència generada als PETS. Això exclou la solució habitual de processar les senyals del BPM a la freqüència de pulsacions del feix (12 GHz). ¿- La senyal de posició resultant del processat ha de ser capaç de detectar canvis a la posició del feix de durada igual o més gran que 10 ns (resolució temporal). ¿- La resolució espaial necessària és de 2 um per a un tub de buit de 23 mm de diàmetre. ¿- Ampli rang dinàmic: el sistema electrònic d'adquisició del BPM ha de poder processar senyals amb nivells extrems, induïdes per feixos de molt alt (100 A) i molt baix (3 A) corrent. / Benot Morell, A. (2016). Beam position monitoring in the clic drive beam decelerator using stripline technology [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/64067

Företag inom slow fashion arbetar mer med hållbarhet, både för konsumenterna och deras anställda. Det är stort fokus på att miljön ska bevaras medan företagen konkurrerar med fast fashionkedjor som massproducerar kläder och säljer till låga priser. Det stora problemet inom industrins produktion handlar om hur man ska försöka minska utsläpp och påverkan på miljön samt hantera överkonsumtionen genom hållbar marknadsföring. Studiens syfte är att utvärdera vilka karaktärsdrag slow fashion företag har gentemot fast fashion företag och hur slow fashion företag inom klädindustrin marknadsför sitt hållbarhetsarbete till konsumenterna. Studien undersöker även hur företagen arbetar med marknadsföring för att nå ut till sina nuvarande och framtida konsumenter. Studien har en kvalitativ ansats och det empiriska materialet samlas in genom semistrukturerade intervjuer med fyra slow fashion företag. Vi har även samlat in empiriskt material genom undersökningar av företagens offentliga material så som hemsidor och sociala medier för att komplettera intervjuerna. Resultatet analyseras med hjälp av tidigare forskning och begreppen slow- jämfört med fast fashion och marknadsföring. Vidare analyseras företagens ansvar med hjälp av begrepp och modeller inom triple bottom line, corporate social responsibility, certifieringar och legitimitet. Det sista inom studien som analyseras är konsumentens ansvar i form av politisk konsumtion samt aktiviteterna bojkott och buycott. Resultaten visar att alla fyra företagen är positiva till att arbeta med hållbarhet för att förbättra miljön och deras arbete kommer inte avta men att företagen vill nå ut till fler konsumenter och minska konsumtionen genom att påverka konsumenterna till att göra färre onödiga inköp. / Slow fashion companies work more with sustainability, both for consumers and their employees. There is a strong focus on preserving the environment while companies compete with fast fashion chains that mass-produce clothes and sell at low prices. The big problem in industrial production is about how to try to reduce emissions and impact on the environment and manage overconsumption through sustainable marketing. The purpose of the study is to evaluate the characteristics of slow fashion companies in relation to fast fashion companies and how slow fashion companies in the clothing industry market their sustainability work to consumers. The study also examines how companies work with marketing to reach their current and future consumers. The study has a qualitative approach, and the empirical material is collected through semistructured interviews with four slow fashion companies. We have also collected empirical material through studies of the companies' public material such as websites and social media to supplement the interviews. The results are analyzed with the help of previous research and the concepts of slow- vs. fast fashion and marketing. Furthermore, corporate responsibility is analyzed with the help of concepts and models within triple results, corporate social responsibility, certifications, and legitimacy. The last thing in the study that is analyzed is the consumer's responsibility in the form of political consumption and the activities boycott and buycott. Results show that all four companies are positive about working with sustainability because the environment and their work will decline, but that the companies want to reach more consumers and choose consumption by influencing consumers to make fewer unnecessary purchases.

Структура магистерской диссертации включает введение, три главы, заключение, список литературы. В первой главе будет определено понятие устойчивого развития, формирование устойчивости и методы оценки эффективности улучшения устойчивого развития. Во второй главе будет представлена методология исследования с углубленным анализом собранных данных. В третьей главе будут исследованы проблемы и механизмы управления устойчивым развитием компании и рекомендации по стратегии устойчивого развития, а также будет оценена их эффективность. Диссертация завершится кратким изложением основных выводов и их последствий для устойчивого развития современных корпораций. / The structure of the master's thesis includes an introduction, three chapters, conclusion, list of references. The first chapter will define the concept of sustainable development, the formation of sustainability and the methods for evaluating the effectiveness of improving sustainable development. The second chapter will provide the research methodology with an in-depth analysis the collected data. In the third chapter, will explore the problems and mechanisms of the company's sustainable development management and recommendations for sustainable development strategy, and their effectiveness will be evaluated. The thesis will conclude with a summary of the key findings and their implications for the sustainable development of modern corporations.

Uppsatsens språk är svenska. Idag är det svenska samhället nästintill kontantlöst och utvecklingen hit har gått fort. Med anledning av digitaliseringen och statens potentiellt förändrade ställning på betalningsmarknaden har Riksbanken undersökt möjligheter samt påbörjat utvecklingen av en egen centralbanksutgiven digital valuta kallad e-krona. Syftet med studien är att undersöka om och hur ett införande av e-krona som betalmedel främjar hållbar finansiell utveckling baserat på vilka möjligheter samt risker som kan uppstå utifrån ett banksektorperspektiv. Studien är kvalitativ och består av finansiell teori tillsammans med nio semistrukturerade intervjuer som genomförts för att nå syftet. Dessa har gjorts med utvalda experter som är eller har varit verksamma inom affärsbanker, Riksbanken, Finansinspektionen och Fintech-bolag. Studien finner att e-kronan kan stärka den finansiella stabiliteten och bibehålla värdeförhållandet mellan pengar. Dessutom identifieras risker med e-kronan där höga kostnader ses som en väsentlig del tillsammans med spekulation och informationsasymmetri. Studien har också visat på resultat att e-kronan kan bidra med innovation och teknikutveckling vilket ses som betydande möjligheter. En central slutats är att e-kronan kan främja hållbar utveckling om utformningen tillåter den att beakta de fyra grundpelarna till hållbar finansiell utveckling, men att det beror på ur den kan komma att utformas. / This study is written in Swedish. Today, the Swedish society is nearly cashless and the progression towards this has been rapid. Due to digitization and the state's potentially changed position on the payment market, the Riksbanken has investigated possibilities and initiated the development of its own central bank-issued digital currency called e-krona. The aim of the study is to investigate whether and how the introduction of the e-krona as a means of payment, promotes sustainable financial development based on the opportunities and risks that may arise from the perspective of the banking sector. The study is qualitative and consists of financial theory together with nine semi-structured interviews that have been conducted to achieve its purpose. The interviewees consist of selected experts who are or have been active in commercial banks, the Riksbanken, the Finansinspektionen and Fintech organizations. The study finds that the e-krona can strengthen financial stability and maintain the value ratio between money. In addition, risks are identified with the e-krona where large costs are seen as an essential part together with speculation and information asymmetry. The study has also resulted in the e-krona being able to contribute with innovation and technology development, which are seen as significant opportunities. A central conclusion is that the e-krona can promote sustainable development if the design allows it to take into account the four pillars of sustainable financial development, but that this depends on how it will be designed.

Studien syftar till att undersöka energi-, vatten- och kemikaliåtgång inom processerna blekning och färgning för nyproduktionsimiterande remake respektive nyproduktion. Genom att undersöka det kan en diskussion föras om huruvida nyproduktionsimiterande remake är ett möjligt alternativ för textilindustrin att hantera dess miljöproblem och textilavfall. Genom att testa att bleka, färga och mäta utvalda parametrar har vi i en labbmiljö skapat en testbild av hur en möjlig process skulle kunna se ut. Genom användning av Higg-Index har vi sedan kunnat få fram en indikation på hur hög resursåtgången skulle kunna vara på industriell nivå med konventionella och resurssparande metoder. Resultatet visar att om målet är att färga om till en så mörk färg som möjligt så skall remakeprodukten inte blekas i förväg. Resultaten gav även en indikation på hur många blekningar som skulle behöva göras i labbmiljö för att få ett helt vitt prov. Detta gav en indikation på hur hög energi-, vatten- och kemikaliåtgång skulle varit beroende på önskat resultat. Detta examensarbete har som mål att uppmuntra kritisk diskussion av remake samt ligga till grund för vidare forskning inom området. Detta för att på sikt bidra med lösningar som kan få textilindustrin att bli mer cirkulär. / The study aims to investigate the consumption of energy, water, and chemicals in the bleaching and dyeing processes for new-production imitating remakes versus new production. By examining this, a discussion can be initiated on whether new-production imitating remakes are a viable alternative for the textile industry to address its environmental issues and textile waste. By testing bleaching, dyeing, and measuring selected parameters in a lab environment, we have created a test representation of how a potential process could work. Using the Higg-Index, we have then been able to get an indication of how high the resource consumption would be at an industrial level with conventional and resource-saving methods. The results show that if the goal is to re-dye to the darkest color possible, the remake product should not be pre-bleached. The results also provided an indication of how many bleaching cycles would need to be done in a lab environment to achieve a completely white sample. This gave an indication of what the energy, water, and chemical consumption would be depending on the desired outcome. This thesis aims to encourage discussion of remakes and serve as a foundation for further research in the area, ultimately contributing to solutions that can make the textile industry more circular.

Cette recherche relève du domaine de la didactique des langues et plus particulièrement de l‘intégration d‘Internet dans l‘enseignement/apprentissage des langues étrangères (désormais L2). Elle se donne pour objectif de consolider l'intake et d‘améliorer l‘acquisition de L2 (ici le français) chez des apprenants de français, langue étrangère, à travers un dispositif hybride. Celui-ci est fondé sur des macro-tâches réalisées à distance et des micro-tâches administrées en présentiel. Ce dispositif s‘appuie également sur l‘exploitation du potentiel d‘Internet pour concevoir des tâches d‘apprentissage et pour créer un centre de ressources virtuel. Il a été conçu pour répondre aux difficultés particulières que rencontrent les apprenants lors de l‘appropriation de L2 et selon leurs besoins langagiers.Cette recherche-action a été menée en Egypte pour des arabophones égyptiens qui apprennent le français comme deuxième langue étrangère (FLE) au Centre Français de Culture et de Coopération (CFCC) au Caire. Elle m‘a conduite à élaborer ce dispositif hybride de tâches afin de vérifier l‘hypothèse générale de ma recherche qui stipule que les tâches d‘apprentissage fondées sur l‘exploitation du potentiel d‘Internet peuvent consolider l‘intake et améliorer l‘acquisition des apprenants de FLE. Ce dispositif m‘a permis de mettre en œuvre des expériences d‘apprentissage potentiellement favorables à l‘acquisition de L2 à travers la réalisation des macro-tâches à distance et des micro-tâches en présentiel. Celles-ci ont été administrées à travers notre centre de ressources en ligne.J‘ai donc conduit une série d‘études expérimentales destinées à évaluer le potentiel acquisitionnel de différentes tâches, réalisées avec des apprenants égyptiens de L2. La réalisation de ces tâches était en autonomie et/ou en collaboration, et sous différentes conditions. Elles avaient pour objectif de dénativiser, a priori, l‘intake des apprenants de L2 afin de les conduire, a posteriori, à un output compréhensible en L2. L‘exploitation d‘Internet m‘a donc permis de présenter aux apprenants un input authentique dans la conception des macro-tâches et de créer un centre de ressources virtuel pour la réalisation des micro-tâches.Grâce à la méthodologie suivie dans cette recherche, j‘ai pu valider mes hypothèses et rendre ces pratiques transférables à d‘autres contextes. Le contenu des tâches semble déterminant par rapport à leur valeur acquisitionnelle. J‘ajoute que les conditions et le contexte dans lesquels les tâches sont réalisées (la défaillance des technologies et du réseau Internet qui s‘imposent parfois sur le terrain) jouent évidemment aussi un grand rôle, et doivent en ce sens recevoir une attention égale dans la recherche en acquisition des L2. / The objective of this research, which lies within the field of language teaching and especially the integration of the Internet in the teaching/learning of foreign languages (Henceforth L2), is to enhance students‘ intake and improve L2 acquisition (French in this case) in French as a foreign language classes through a hybrid environment based on macro-tasks performed in distance and micro-tasks administered in class. This environment also relies on the exploitation of the Internet to design learning tasks and to create a virtual resource center in order to address the specific difficulties that students faced in their learning of the L2. This action research was conducted in Egypt for Egyptian Arabic-language students learning French as a foreign language (FFL) in the French Culture and Cooperation Centre (CFCC) in Cairo. It helped me develop this hybrid task environment to validate the general hypothesis of my research, which states that! learning tasks based on exploiting the Internet can reinforce the intake and improve the acquisition of FFL. This environment allowed me to implement learning experiences that are potentially favorable to the acquisition of L2 through the completion of macro-tasks performed in distance as well as micro-tasks performed in class. These tasks were administered through our virtual resource center. Therefore, Iconducted a series of experimental studies to assess different tasks‘ learnability when performed by Egyptian learners of L2. These tasks were completed independently and/or in collaboration, under various conditions. They were intended to first denativize the intake of L2 learners in order to then help them produce comprehensible output in the L2. The use of the Internet allowed me to present learners with authentic input in the planning and completion of macro-tasks and to create a virtual resource center for the production of micro-tasks. Thanks to the methodology applied in this research, I was able to validate my initial hypotheses and make this environment transferable and adaptable to other contexts as well. The content of the tasks is relative to its learnability. I would finally add that the conditions and context in which these tasks were performed (the failure of technology and Internet network, which may happen quite often in this setting) obviously played a bi! g role in their successful or unsuccessful completion and those factors must be given equal attention in L2 acquisition research.