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Elf, Stefan. "Application semantics for cost-effective media distribution." Licentiate thesis, Luleå tekniska universitet, Datavetenskap, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25711.
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Public use of the Internet increases as wideband connections become pervasive and applications suitable for media distribution grow popular. Group collaboration applications have attracted interest during recent years. Wireless connectivity and business applications also furthers a need for reliable communication protocols. Multicast is a driving force for new applications involving one-to-many as well as many-to-many user scenarios like lecturing, discussions, and collaborative work. In some applications guaranteed delivery of every packet is not crucial, while in other this is a requirement. Error handling in reliable protocols can present a substantial challenge already in a homogeneous environment. Including a plethora of end-user terminal types with widely varying resources it becomes even more challenging. Protocols and applications must therefore be able to handle receiver and network link heterogeneity. The thesis addresses some of the challenges facing the applications in this field, related to multicast and unicast alike. Although the obstacles each of them must overcome may differ, there are similarities with regards to possible solutions with respect to error handling or resource allocation. Error handling protocols are proactive or reactive. Proactive protocols transmit redundant information along with the original information, enabling the receivers to repair lost packets without feedback to the sender. Reactive protocols rely either on positive or negative feedback from the receivers in order to establish reliability. According to a definition of semantic reliability the reliability concept can be interpreted in terms of application semantics. It is proposed to view reliable multicast as a special case of semantically reliable multicast and to implement a dynamically configurable transport layer with an error-handling rule set that can be configured from the application or even from the sender in- session. It is also proposed to make use of the application's knowledge of specific semantics to improve on the recovery of lost packets, congestion handling, or resource allocation. The thesis also presents a bandwidth-sharing scheme for video in group collaboration using application semantics in the form of user hints. The presence of such events is made available to all senders via message passing between session members. As information relating to a user's interest in another user is conveyed, the sender may increase its use of resources on the expense of other senders. A scheme is proposed and a prototype implementation and experimental results are presented.<br><p>Godkänd; 2003; 20060918 (ysko)</p>
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Olson, William Mathew. "Effectiveness and cost benefit review of multi-media training." Menomonie, WI : University of Wisconsin--Stout, 2005. http://www.uwstout.edu/lib/thesis/2005/2005olsonw.pdf.
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Nguyen, Dang Nam Chi. "Scalable and cost-effective framework for continuous media-on-demand." University of Technology, Sydney. Faculty of Information Technology, 2006. http://hdl.handle.net/2100/392.
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This dissertation was motivated by the exponential growth in bandwidth capacity of the Internet, coupled with the immense growth of broadband adoption by the public. This has led to the development of a wide variety of new online services. Chief amongst the emerging applications is the delivery of multimedia contents to the end users via the network on-demand. It is the “on-demand” aspect that has led to problems which, despite the advances in hardware technology and network capacity, have hampered wide scale adoption of multimedia delivery. The focus of this dissertation was to address these problems, namely: scalability, cost-effectiveness, and network quality of service for timely presentation of multimedia contents. We proposed an architecture, which we referred to as “Delayed-Multicast”, to address the scalability problem. The new architecture introduced buffers within the network to reduce demands on core network bandwidth and server load. A feasibility study of the architecture was conducted through the use of a prototype. It was found that such a system is within reach by demonstrating the prototype using cheap, common-of-the-shelf (COTS) components, and with help of freely available system software such Linux with real-time support. The introduction of buffers within the network led to the requirement of how to minimize buffer space. We developed an optimal algorithm for allocating buffer space in a single level caching layout (i.e. only one buffer in the transmission path from the server to the end user). For the case of multi-levels network caching, we thoroughly examined different optimization problems from an algorithmic perspective. These problems included how to minimize total system memory, and minimize the maximum memory used per node. We proved that determining the optimal buffer allocation in many of these iv v cases is an NP-complete problem. Consequently, we developed heuristics to handle multi-level caching and showed through simulations that the heuristics greatly help in minimizing buffer space and network bandwidth requirement. An important aspect of the heuristics was how to handle the case when the arrival times of client requests were not known a priori. For these “online” problems we also proposed heuristics that can significantly reduce overall system resource requirements. If the cost of buffer space was also taken into account along with the cost of network bandwidth, a different optimization problem was how to minimize the total system cost. Here, we also proposed heuristics, which in simulations show that the total system cost can be significantly reduced. Besides the problems associated with resource allocation, in terms of buffer space and bandwidth, we also examined the problem of how to provision the necessary network quality of service on-demand. Most current networks rely on best-effort delivery which is ill suited for the delivery of multimedia traffic. We proposed a solution which relied on the use of a programmable network plane, that is present in many current routers, to dynamically alter the priority of flows within the network in real-time. We also demonstrated the effectiveness of the flow prioritization on an actual Nortel router. Finally, we examined the problem of how to admit and achieve fair bandwidth allocation for the end-users within a Differentiated Service (DiffServ) network. Diff- Serv is an IETF standard that aims to provide a “better than best-effort” network in a scalable manner, and is used widely, especially within the same autonomous domain for prioritization different classes of traffic. However, there are open problems on how to provide fair bandwidth allocation amongst competing flows. We proposed an edge-aware resource discovery loop, which as the name suggests, sent packets to gather information about the internal states of the core network. With this information, we proposed a price-based admission control algorithm for use within the DiffServ network that would allow fair admission, effective congestion control, and fair bandwidth allocation amongst different traffic flows.
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Šilhavý, Miroslav. "Sledování paprsku pomocí k-D tree." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2010. http://www.nusl.cz/ntk/nusl-237163.
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This thesis deals with ray tracing methods and their acceleration. It gives partial study and review of algorithms from classical ray shooting algorithm to recursive approach up to distributed ray tracing algorithm. Significant part of this thesis is devoted to BSP tree structure and its subclass of k-D tree, it shows simple algorithm for its construction and traversal. The rest of thesis is dealing with k-D tree construction techniques, which are based on the right choice of the splitting plane inside the every cell of k-D tree. The techniques upon the thesis is based on are space median, object median and relatively new cost model technique named SAH, otherwise as surface area heuristic. All three techniques are put into testing and performance comparison. In the conclusion the results of tests are reviewed, from where SAH is coming out as a winner.
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Chow, Brian 1978. "Photoelectromechanical synthesis of low-cost DNA microarrays." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/42405.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2008.<br>Includes bibliographical references.<br>Recent advances in de novo gene synthesis, library construction, and genomic selection for target sequencing using DNA from custom microarrays have demonstrated that microarrays can effectively be used as the world's cheapest sources of complex oligonucleotide pools. Unfortunately, commercial custom microarrays are expensive and not easily accessible to academic researchers, and technical challenges still exist for dealing with the small amount of DNA synthesized on a chip. Genomic research would certainly benefit from the creation of cheaper custom microarrays with larger oligonucleotide concentrations per spot. This thesis presents the development of a novel DNA microarray synthesis platform based on semiconductor photoelectrochemistry (PEC) designed with these needs in mind. An amorphous silicon photoconductor is activated by an optical projection system to create "virtual electrodes" that electrochemically generate protons in a site-selective manner, thereby cleaving acid-labile dimethoxytrityl protecting groups with the spatial selectivity that is required for in-situ DNA synthesis. This platform has the potential to be particularly low-cost since it employs standard phosphoramidite reagents, visible wavelength optics, and a cheaply microfabricated and reusable substrate. By incorporating a porous thin-film glass that dramatically increases the DNA quantity produced by over an order of magnitude per chip, this platform may also simplify the handling of DNA cleaved from chip and drive down the cost per base synthesized. The hybridization detection of single-base errors was successfully demonstrated on PEC synthesized microarrays. This thesis also reports a suite of new surface chemistries and high-resolution techniques for patterning biological molecules.<br>by Brian Yichiun Chow.<br>Ph.D.
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Fletcher, Richard R. (Richard Ribon). "Low-cost electromagnetic tagging : design and implementation." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/17615.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2002.<br>Includes bibliographical references (p. 220-222).<br>Several implementations of chipless RFID (Radio Frequency Identification) tags are presented and discussed as low-cost alternatives to chip-based RFID tags and sensors. An overview of present-day near-field electromagnetic tagging is presented, including both chip-based and chipless technologies with associated costs. As a candidate for low-cost ID tags, a design theory and implementation is presented for multiply-resonant planar metal structures. This theory includes a circuit model, a phenomenological model, and a framework for predicting the resonant frequencies as a function of geometrical and material properties. A novel physical geometry, a tree-like spiral structure, is proposed as a design that increases the number of resonances per unit area in a planar structure relative to the present day state-of-the-art. In addition to identification, it is shown how several chipless tags can also be designed to function as sensors. Several examples are discussed in detail, including: 1) a family of thermal sensor tags employing magnetic materials and 2) a family of sensor tags (to sense pressure, humidity, and pH) based on planar resonator structures. The latter section of the dissertation describes the evolution of my work in developing the necessary (and low-cost) instrumentation to support these new varieties of tag technologies, ranging from a $500 frequency-agile reader to a $5 reader for toy applications.<br>by Richard Ribon Fletcher.<br>Ph.D.
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Alhawari, Omar Ibrahim Salem. "Global Supply Chain Design Under Stochastic Demand Considering Manufacturing Operations and the Impact of Tariffs." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1565388377821285.
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Shilbayeh, S. A. "Cost sensitive meta-learning." Thesis, University of Salford, 2015. http://usir.salford.ac.uk/36278/.
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Classification is one of the primary tasks of data mining and aims to assign a class label to unseen examples by using a model learned from a training dataset. Most of the accepted classifiers are designed to minimize the error rate but in practice data mining involves costs such as the cost of getting the data, and cost of making an error. Hence the following question arises: Among all the available classification algorithms, and in considering a specific type of data and cost, which is the best algorithm for my problem? It is well known to the machine learning community that there is no single algorithm that performs best for all domains. This observation motivates the need to develop an “algorithm selector” which is the work of automating the process of choosing between different algorithms given a specific domain of application. Thus, this research develops a new meta-learning system for recommending cost-sensitive classification methods. The system is based on the idea of applying machine learning to discover knowledge about the performance of different data mining algorithms. It includes components that repeatedly apply different classification methods on data sets and measuring their performance. The characteristics of the data sets, combined with the algorithm and the performance provide the training examples. A decision tree algorithm is applied on the training examples to induce the knowledge which can then be applied to recommend algorithms for new data sets, and then active learning is used to automate the ability to choose the most informative data set that should enter the learning process. This thesis makes contributions to both the fields of meta-learning, and cost sensitive learning in that it develops a new meta-learning approach for recommending cost-sensitive methods. Although, meta-learning is not new, the task of accelerating the learning process remains an open problem, and the thesis develops a novel active learning strategy based on clustering that gives the learner the ability to choose which data to learn from and accordingly, speed up the meta-learning process. Both the meta-learning system and use of active learning are implemented in the WEKA system and evaluated by applying them on different datasets and comparing the results with existing studies available in the literature. The results show that the meta-learning system developed produces better results than METAL, a well-known meta-learning system and that the use of clustering and active learning has a positive effect on accelerating the meta-learning process, where all tested datasets show a decrement of error rate prediction by 75 %.
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Xia, Charlene. "A low-cost modular underwater acoustic communication system." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/130598.
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Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, September, 2020<br>Cataloged from the official PDF version of thesis.<br>Includes bibliographical references (pages 99-102).<br>This thesis describes the design of a novel modular acoustic communication device for underwater wireless communication. The ocean plays a vital role in the global climate system and biosphere, providing a wealth of biodiversity and resources. Human exploitation, pollutants, and contaminants have already impacted the deepest trenches of the ocean. Yet most of this impact remains invisible - the depth and breadth of the ocean, the opacity of water to light, and the lack of mass-deployable ocean instrumentation, mean that current observations are wildly under sampled in space and time. Even given suitable instruments, a major challenge remains: how to get the data home. Given the opacity of sea water to radio, and the complexity and expense of underwater cabling, audio communication is in may ways the low hanging fruit. Unfortunately, most commercial audio communication systems are both extremely expensive and more powerful than needed for many, if not most, monitoring requirements.<br>They are also proprietary, a frustrating barrier to development of novel devices. As a result, these off-the-shelf systems are ill-suited to the global multi-scale instrumentation challenges of the future. In what follows we document the design, development, and testing of a low-cost, high-efficiency, modular, and fully open-sourced acoustic communication system. This system is specifically intended for mass deployment, with particular emphasis on standardized hardware and software interfaces. Crucially, this design prioritizes cost and simplicity over performance - as such, this system does not aim to replace the current crop of commercially available systems, but rather to provide a new kind of tool specifically for scalable deployments of low-cost instruments.<br>Functionally, the system is composed of three core modules: a power management unit; a central processing unit; and a family of interchangeable acoustic transceiver units operating across a spectrum of transmission frequencies. The resulting design should be of valuable use to the scientific community, environmental agencies, citizen scientists, and anyone who needs to transport low-bandwidth data through the ocean at extremely low cost.<br>by Charlene Xia.<br>S.M.<br>S.M. Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences
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Svernlöv, Oscar. "Media in transition : The cost of increased freedom of expression in Ethiopia." Thesis, Stockholms universitet, JMK, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-183178.
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This thesis aims to portray the professional challenges for journalists in the private Ethiopian media sphere during a time of historical political change. Several liberal reforms have been enacted since the inauguration of Prime Minister Abiy Ahmed in 2018. Journalists have been released from prison, numerous websites have been unblocked and government intervention of independent media actors has declined. However, these changes are not without new challenges. The study uses qualitative, in-depth interviews with several key actors in the private media sector as the method of data collection and numerous findings that describe the new situation for journalists surfaced. While the interviewees commonly perceived an increase in media freedom and decrease in government threats, other challenges remain, and new ones have appeared. The data indicate that there are still considerable difficulties in accessing government information, as well as a significant uncertainty as to whether the transition will occur, as new media laws have yet to be put in place. The most prevalent finding was, however, the distinct and unanimous shift in perceived threats towards journalists. As government intervention has declined, public unrest and intimidations have increased to the point where several of the respondents no longer felt safe reporting from to certain geographical areas in the country. The investigation concludes that there is a need for further research into the often profound impact that political developments have on journalistic practice in sub-Saharan countries, as well as the impact of sudden increases in freedom of expression in countries with a history of heavily censored authoritarian leadership.
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Wilson, Gillian May. "The relationship between media quality and user cost in networked multimedia applications." Thesis, University College London (University of London), 2006. http://discovery.ucl.ac.uk/1445986/.
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The research reported in this thesis assesses the impact of media quality degradations in Internet multimedia conferencing on users. Low quality audio and video can be experienced, therefore it is important to determine the minimum levels of quality needed to perform specific tasks. This has most commonly been investigated using subjective measures, however the research reported in this thesis adopted a 3-factor evaluation framework of task performance, user satisfaction and user cost. User satisfaction was measured subjectively, whereas physiological indicators of perceptual strain were utilised to measure user cost. Physiological measures provide continuous data throughout a session, are not subject to cognitive mediation and taking such measurements does not interfere with the user's task. Five experiments were performed investigating audio and video quality degradations. With the exception of one passive listening task, all tasks used were based on remote interviews, as they fully exploit the capabilities of the application. Results showed that physiological responses to media quality degradations can be detected in passive, perceptual tasks. However, active participation in a task made it more difficult to detect changes due to quality degradations. In all experiments physiological measures gave information on the nature of the tasks being performed and effects of variables such as order. The results of this research were then used in three further experiments in the areas of VR and web quality of service and design. In conclusion, the physiological measures utilised in the research reported in this thesis can be employed to assess the impact of media quality degradations in passive perceptual tasks and to give general information about the nature of the task being performed.
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Clayton, Bradley. "Securing media streams in an Asterisk-based environment and evaluating the resulting performance cost." Thesis, Rhodes University, 2007. http://eprints.ru.ac.za/851/.
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Dambal, Ajey Krishnamurty. "Polymer dynamics in confined and concentrated media /." May be available electronically:, 2009. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Bardagjy, Andrew Matthew. "Low dimensionality spectral sensing for low cost material discrimination and identification." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79331.
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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 191-193).<br>Spectroscopy is a powerful tool in material identification, characterization and discrimination. Unfortunately industrial and laboratory spectrometers are typically very large, costly, and inconvenient. The aim of this thesis is to broaden the awareness and appeal of spectroscopic sensing modalities by exploring specialized, rather than general purpose instruments. Rather than sensing the entire spectrum, these devices work by observing just the particular spectral features needed to perform identification or discrimination. This approach greatly simplifies the instrument reducing the cost, size, power consumption, and analysis complexity by many orders of magnitude. In this work the anatomy of such specialized sensors is explored by way of a thorough discussion of illuminators, current sources, photodetectors, photodiode amplifiers, control systems and part selection. In the following chapters, instruments are designed and fabricated, and their tradeoffs are enumerated and discussed. Finally, these building-blocks are combined to construct several working prototypes which are informally characterized.<br>by Andrew Matthew Bardagjy.<br>S.M.
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Nichols, Elizabeth Anne. "Involvement of the medial temporal lobes in working memory /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Hatcher, John Albert. "The news media and their state Testing concertation in news media and their messages in a comparative analysis of 36 democracies /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.
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Robles-Rivera, Francisco [Verfasser]. "Media Captured: Elites’ Cohesion and Media Networks in Costa Rica and El Salvador / Francisco Robles-Rivera." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1176636782/34.
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Li, Xinbao Wilson. "The interaction effects of social presence, recipient availability, urgency, relationship, and proximity on media selection : a cost minimization analysis." HKBU Institutional Repository, 2004. http://repository.hkbu.edu.hk/etd_ra/520.
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Shan, Guojian. "Imaging of steep reflectors in anisotropic media by wavefield extrapolation /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Gumbrecht, Michelle. "Initiating a joint activity : an examination of communication media selection /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Fletcher, Richard R. (Richard Ribon). "A low-cost electromagnetic tagging technology for wireless identification, sensing, and tracking of objects." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/29130.
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Salzman, Catherine C. Albarran Alan B. "Central American media a comparative study of media industries in Guatemala, Nicaragua, Honduras, El Salvador, and Costa Rica /." [Denton, Tex.] : University of North Texas, 2008. http://digital.library.unt.edu/permalink/meta-dc-9039.
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Salzman, Catherine C. "Central American Media: A Comparative Study of Media Industries in Guatemala, Nicaragua, Honduras, El Salvador, and Costa Rica." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc9039/.
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The five countries that lie on the isthmus connecting North and South America have endured a past of colonialism, civil war, and natural disaster. As these countries evolve in the 21st century, growing economies and political peace provide a promising outlook for the citizens of these nations. The media industries in these nations have varying levels of development which are explored in this thesis. Using Michael Porter's 1990 framework and a case study methodology, this thesis explores the differences and similarities of media industries in Guatemala, El Salvador, Honduras, Nicaragua and Costa Rica, and what may be done to ensure future success in an increasingly global world.
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Bannon, Brent. "Tell it like it is : news media priming-extensions and applications /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Abbate, Kristopher J., Melanie D. Hingle, Julie Armin, Jr Peter Giacobbi, and Judith S. Gordon. "Recruiting Women to a Mobile Health Smoking Cessation Trial: Low- and No-Cost Strategies." JMIR PUBLICATIONS, INC, 2017. http://hdl.handle.net/10150/626269.
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Background: Successful recruitment of participants to mobile health (mHealth) studies presents unique challenges over in-person studies. It is important to identify recruitment strategies that maximize the limited recruitment resources available to researchers. Objective: The objective of this study was to describe a case study of a unique recruitment process used in a recent mHealth software app designed to increase smoking cessation among weight-concerned women smokers. The See Me Smoke-Free app was deployed to the Google Play Store (Alphabet, Inc., Google, LLC), where potential participants could download the app and enroll in the study. Users were invited in-app to participate in the study, with no in-person contact. The recruitment activities relied primarily on earned (free) and social media. Methods: To determine the relationship between recruitment activities and participant enrollment, the researchers explored trends in earned and social media activity in relation to app installations, examined social media messaging in relation to reach or impressions, and described app users' self-reported referral source. The researchers collected and descriptively analyzed data regarding recruitment activities, social media audience, and app use during the 18-week recruitment period (March 30, 2015-July 31, 2015). Data were collected and aggregated from internal staff activity tracking documents and from Web-based data analytics software such as SumAll, Facebook Insights (Facebook, Inc.), and Google Analytics (Alphabet, Inc., Google, LLC). Results: Media coverage was documented across 75 publications and radio or television broadcasts, 35 of which were local, 39 national, and 1 international. The research team made 30 Facebook posts and 49 tweets, yielding 1821 reaches and 6336 impressions, respectively. From March 30, 2015 to July 31, 2015, 289 unique users downloaded the app, and 151 participants enrolled in the study. Conclusions: Research identifying effective online recruitment methods for mHealth studies remains minimal, and findings are inconsistent. We demonstrated how earned media can be leveraged to recruit women to an mHealth smoking cessation trial at low cost. Using earned media and leveraging social media allowed us to enroll 3 times the number of participants that we anticipated enrolling. The cost of earned media resides in the staff time required to manage it, particularly the regular interaction with social media. We recommend communication and cooperation with university public affairs and social media offices, as well as affiliate programs in journalism and communications, so that earned media can be used as a recruitment strategy for mHealth behavior change interventions. However, press releases are not always picked up by the media and should not be considered as a stand-alone method of recruitment. Careful consideration of an intervention's broad appeal and how that translates into potential media interest is needed when including earned media as part of a comprehensive recruitment plan for mHealth research.
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Lima, Marta Aguiar. "Influência da informação das companhias aéreas low-cost nas páginas do facebook na compra online de viagens." Master's thesis, Instituto Superior de Economia e Gestão, 2017. http://hdl.handle.net/10400.5/14718.
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Mestrado em Marketing<br>O Facebook tem vindo a crescer continuamente, com um aumento significativo no número de utilizadores, quer sejam empresas ou particulares. Tornou-se cada vez mais importante para as empresas estarem presentes neste meio para criarem uma ligação duradoura com os seus consumidores.
Os consumidores estão cada vez mais atentos ao que é publicado nas páginas das empresas no Facebook, em especial às experiências por parte de outros consumidores.
No setor da aviação, há uma aposta crescente no uso das redes sociais para divulgar ofertas e promoções, com o intuito de levar a uma maior compra de viagens. Os consumidores recorrem ao Facebook para pesquisar conteúdo partilhado por quem já fez a mesma viagem, visualizando comentários, fotografias, vídeos, entre outros.
A presente dissertação tem como objetivo perceber se a informação das companhias aéreas low-cost presente nas páginas do Facebook, tem influência na intenção de compra de viagens da mesma. Para tal, foi realizado um estudo através de um inquérito online, com o intuito de averiguar se os fatores utilidade, facilidade de uso, diversão, atitude, risco percecionado e uso do Facebook, têm impacto na intenção de compra online. Importa averiguar se esse impacto é positivo ou negativo, e qual a relação existente entre os mesmos fatores.
Concluiu-se que os fatores diversão e o uso do Facebook para pesquisa de informação não vão ter qualquer influência na compra online de viagens. Já o risco percecionado tem um impacto negativo na compra de viagens online.<br>The Facebook has been growing continuously, with a significant increase in the number of users, whether companies or individuals. It has become increasingly important for companies to be present in this environment and therefore to create a lasting connection with their consumers.
Consumers are increasingly paying close attention to what is posted on Facebook business pages, especially to other consumer's experiences.
Considering the aviation sector, there is an increasing focus on the use of social networks to promote offers and promotions, to lead to a greater purchase of travel. Consumers turn to Facebook to search content shared by those who have taken the same trip, viewing comments, photos, videos, and more.
The purpose of this dissertation is to understand if the information present on Facebook pages of low-cost airlines has influence in the intention to purchase trips of those companies. For that, a study was carried out through an online survey, in order to find out which factors have an impact on the intention to buy online and whether this impact is positive or negative, and what is the relationship between those factors.
It was concluded that the factors enjoyment and the use of Facebook for information search have no influence on the online purchase of travelling tickets. The factor risk has a negative impact on the purchase of online travel.<br>info:eu-repo/semantics/publishedVersion
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Burtner, Matthew. "Ukiuq tulugaq = The winter raven /." May be available electronically:, 2002. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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D.M.A. final project--Department of Music, Stanford University, June 2002.<br>For voice, instrumental ensemble, electronics, dance ensemble, video projection, and theatrical staging. Includes abstract, notes on instrumentation and performance requirements, instructions for performance, and formal overviews of each act. Accompanying sound and video discs contain component materials for performance. Duration: ca. 90 min.
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Lee, Seungyon-Seny. "Idiosyncrasy : pleasure, anger, lament and joie : an eight channel for real-time interaction composition for tape, mezzo-soprano and video /." May be available electronically:, 2002. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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D.M.A. final project--Department of Music, Stanford University, 2002.<br>Introductory materials in English include program notes, performance instructions, technical requirements, staging diagrams, and video image examples. Duration: ca. 14:30.
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Van, Zyl Elizabeth Margaretha, and Zyl Lizma Van. "Too cosy for comfort? : a media ethical investigation into the Presidential Press Corps." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53697.
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Thesis (MA)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: Govemment and the media are in the process of establishing South Africa's first
Presidential Press Corps (PPC) based on the White House Press Corps in the United
States of America.
The need for a body like the Presidential Press Corps (PPC) has become increasingly
evident as the recent relationship between the South African president and this country's
press can only be characterised as poor.
The establishment of the PPC potentially presents an ethical dilemma though due to
various factors. A joumalist can only serve the public with the most comprehensive and
accurate news when his or her finger is on the pulse of events that take place within the
decision-making bodies. However, being so close to those in power may seriously
threaten journalistic independence. This dilemma would be discussed in detail in this
assignment.
In May 200 I, the troubled relationship between Mbeki and the media was tackled at an
Indaba between the South African National Editor's Forum (SANEF) and cabinet at Sun
City. The crux and outcome of these discussions are set forth in The lf/oy Fo/wOld, a
report prepared by those attending the Indaba. The establishment of the PPC is one of
eight joint government and media initiatives outlined in this report.
Although there is overwhelming support for the Pl'C, there is concern that the Pl'C
members would be censored, manipulated and controlled by government as a result of
their proximity. The Freedom of Expression Institute (FXI) believes the implications are
far reaching and pose a serious threat to a free press.
This first group of Pl'C journalists is going where no other has gone before in this
country's history. They are however facing a daunting task, as the arena they are entering
is fraught with novelties, challenges, obstacles and temptations.
This assignment will examine the media's role in a democracy, the challenges of far
closer cooperation between the media and government, the ethical dilemma potentially
presented by the Pl'C as well as ways to ensure as far as possible, an ethical and
professional relationship between government and the corps's members.<br>AFRIKAANSE OPSOMMING: Die regenng en die media is in die proses om Suid-Afrika se eerste Presidensiele
Perskorps (PPK) te stig. Die konsep is geskoei op die van die Wit Huis Perskorps in die
Verenigde State van Amerika.
'n Dringende behoefte bestaan in Suid-Afrika aan 'n liggaam soos die PPK aangesien dit
duidelik geword het dat die verhouding tussen die president en die media nie na wense is
nie. Die stigting van die PPK kan egter weens verskeie faktore eties-problematies wees.
Joernaliste kan die publiek slegs voorsien van akkurate nuus indien hulle vingers op die
polsslag van gebeure binne die land se besluitnemende liggame is. Joernalistieke
onafhanklikheid kan egter in gedrang kom indien die verhouding tussen die "waghond"
en die regering te intiem raak. Die PPK-Iede sal na verwagting weens gereelde kontak 'n
veel hegter verhouding met die president he as wat die geval is met ander joemaliste.
Die vertroebelde verhouding tussen die media en president Thabo Mbeki is in Mei 200 1
bespreek tydens 'n lndaba by Sun City. Een van die inisiatiewe waarop daar
ooreengekom is in 'n poging om die probleme aan te pak, is die stigting van die PPK. Die
Suid-Afrikaanse Nasionale Redakteursforum en die regering hoop dat die korps sal bydra
tot 'n vryer vloei van inligting asook tot 'n beter verstandbouding tussen die regering en
die media.
Hoewel daar oorweldigende steun is vir die PPK, is daar ook vrese dat die korps se lede
gemanupileer en beheer sal word deur die kabinet.Die eerste groep PPK-lede gaan baanbrekerswerk verrig, maar die pad voor hulle is
onbekend en vol potensiele gevare. Die uitdagings, slaggate sowel as maniere hoe etiese
probleme oorkom kan word, word in hierdie werkstuk bespreek.
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Sanfeliu, Cano Cristina. "Organic-inorganic hybrid materials for boron removal from aqueous media." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/63277.
Full textAbstract:
[EN] The present PhD thesis is centred in the design (using concepts of supramolecular chemistry), synthesis and characterization of different hybrid organic-inorganic materials for boron removal from aqueous media. The interaction between boron and organic groups, polyols, used in the development of these new adsorbents is also studied.
In the first part of the thesis it is presented a brief review of supramolecular chemistry concepts, chemistry of boron and also the main methods for boron removal (first chapter) and, also, the objectives of this thesis (second chapter).
The third chapter exposes the results obtained by using a ceramic foam as macroscopic support for active materials for boron removal. This support is previously "impregnated" with an inorganic silica mesoporous material (UVM-7) and, in a second step, it is functionalized with an organic group with high boron affinity (gluconamide). This organic group, which works as an adsorbent, remains anchored to a macroscopic support, which will facilitate the use of these materials in industrial applications. Once the material is synthetized their boron adsorption and elimination abailability in aqueous media is studied and its ulterior reutilization.
The fourth chapter of the PhD thesis is focused on the preparation of low cost materials for boron adsorption from water. In first place, it is used, as inorganic scaffolding, UVM-7 material, a mesoporous silica phase with a bimodal pore system. This material has a high boron adsorption capacity after its functionalization with the polyalcohol (as it is shown in the previous chapter) nevertheless, the reagents used in the synthesis tetraethylorthosilicate, as silica source, and hexadecyltrimethylammonium bromide, as templating agent are so expensive that they induce a high cost of final materials. In this chapter is presented as an alternative another materials which are able to perform as inorganic scaffolds: UVM-11 (surfactant-free mesoporous material), two silica xerogels with pores within the mesoporous range and comercial high surface area silica fume were prepared. Once all the materials are synthetized they are functionalized with gluconamides which are the active compounds for boron adsorption. Finally, a comparative study of the boron adsorption capacities in water is carried out. Low cost materials present comparable boron removal to those of higher cost and comercially abailable materials.
Finally, in the fith chapter of this PhD thesis, the adsorption mechanism of boron on the active materials (based on UVM-7 as inorganic support) is studied using solid Nuclear Magnetic Resonance measures of 11B and 13C and using techniques as Magic Angle Sppining, crossed polarization and heteronuclear polarization disacoplament. To do that, a hybrid material composed by UVM-7 matrix grafted with gluconamide is prepared and then the solid is put in contact with different boron quantities. Final solids are characterized through 13C and 11B NMR, showing the formation of boronesters between gluconamide diol groups and boron adsorbed. When low boron concentration is used, bisquelate complexes are formed (B:glucosa = 1:2), however with higher concentrations monoquelate complexes are formed (B:glucosa = 1:1). This work was carried out in collaboration with the research group of "sol-gel materials and NMR", appertaining to the center of "Chimie de la matière condensée de Paris" of the "Université Pierre et Marie Curie".<br>[ES] La presente tesis doctoral está dedicada al diseño (empleando conceptos de química supramolecular), síntesis y caracterización de diferentes materiales híbridos orgánico-inorgánicos para la eliminación de boro en medios acuosos. También se ha procedido a estudiar detalladamente la interacción del boro con las agrupaciones orgánicas, polialcoholes, empleadas en el desarrollo de estos nuevos adsorbentes.
En la primera parte de la tesis de presenta una introducción en la que se revisa los conceptos de química supramolecular, química del boro y los principales métodos de eliminación de boro (primer capítulo) y, también, se exponen los objetivos de la tesis (segundo capítulo).
Ya en el tercer capítulo se exponen los resultados obtenidos empleando una esponja cerámica como soporte macroscópico para los materiales activos frente a la eliminación de boro. Este soporte se "impregnan" previamente con un material inorgánico silíceo mesoporoso (UVM-7) y, en una fase posterior, se funcionaliza con un grupo orgánico con alta afinidad hacia el boro (gluconamida). El grupo orgánico que funcionará como adsorbente queda así anclado a un soporte de tamaño macroscópico que facilitará la aplicación de estos materiales a gran escala. Una vez preparado y caracterizado se estudió la capacidad del material para adsorber y eliminar boro de medios acuosos y su posterior reutilización.
En el cuarto capítulo de la tesis doctoral se aborda la preparación de materiales adsorbentes de bajo coste económico para la eliminación de boro en medios acuosos. En primer lugar se emplea, como soporte inorgánico, UVM-7 una sílice mesoporosa con un sistema bimodal de poros. Este material tiene una capacidad de adsorción de boro muy elevada una vez funcionalizado con el correspondiente polialcohol (tal y como se expone en el capítulo anterior) sin embargo los reactivos para su síntesis tetraetilortosilicato como fuente de sílice y bromuro de cetiltrimetilamonio como agente director de estructura son muy caros con lo que el material final presenta un elevado coste. En este capítulo se presenta como alternativa otros materiales que puedan actuar como soportes inorgánicos: UVM-11, material mesoporoso que no requiere de agente director de estructura en su síntesis, dos xerogeles con poros en el rango meso y una sílice comercial nanoparticulada de elevada superficie específica. Una vez sintetizados y caracterizados los cinco soportes se funcionalizaron con gluconamidas, que son los componentes activos frente a la adsorción de boro. Finalmente, se realiza un estudio comparativo de la capacidad de eliminación de boro de los cinco materiales preparados. Los materiales de bajo coste estudiados presentan una capacidad de eliminación de boro comparable a los materiales de mayor coste y a los materiales comercialmente disponibles.
Por último, en el capítulo cinco de esta tesis doctoral, se aborda el estudio del mecanismo de adsorción del boro en los materiales activos preparados (basados en UVM-7 como soporte inorgánico) mediante medidas de resonancia magnética nuclear de sólidos, tanto de 13C como de 11B empleando las técnicas de rotación en ángulo mágico, polarización cruzada, y el desacoplamiento dipolar heteronuclear. Para ello se prepara un material híbrido formado por una matriz de UVM-7 funcionalizada con gluconamidas y este sólido se pone en contacto con diferentes cantidades de boro. Los sólidos finales se caracterizan mediante RMN de 13C y de 11B, observándose la formación de boroesteres entre los grupos diol de las gluconamidas ancladas y el boro adsorbido. Cuando la concentración de boro empleada es baja se forman complejos bisquelados (B:glucosa = 1:2) mientras que a concentraciones altas empiezan a formarse complejos monoquelados (B:glucosa = 1:1). Este trabajo se llevó a cabo en colaboración con el grupo de investigación de "Materiales sol-gel y RMN", perteneciente al centro "Chimie de la matiè<br>[CAT] La present tesi doctoral està dedicada al disseny (empleant conceptes de química supramolecular), síntesi i caracterització de diferents materials híbrids orgànico-inorgànics per a la el¿liminació de bor en medi aquòs. També s'ha precedit a estudiar detalladament la interacció del bor amb les agrupacions orgàniques, polialcohols, empreats en el desenvolupament d'aquestos nous adsorbents.
En la primera part de la tesi es presenta una introducció en la que es revisen els conceptes de química supramolecular, química del bor i els principals mètodes de el¿liminació de bor (primer capítol) i, també, s'exposen els objectius de la tesi (segon capítol).
Ja en el tercer capítol s'exposen els resultats obtinguts empreant una esponja ceràmica com a suport macroscòpic per als materials actius front a l'el¿liminació del bor. Aquest suport s'impregna prèviament amb un material inorgànic de sílice mesoporós (UVM-7) i, en una següent fase, es funcionalitza amb un grup orgànic amb alta afinitat cap al bor (gluconamida). El grup orgànic que funcionarà com a adsorbent queda aixina anclat a un suport de tamany macroscòpic que facil¿litarà l'aplicació d'aquestos materials a gran escala. Una vegada preparat i caracteritzat s'estudia la capacitat del material per a adsorber i el¿liminar bor en medi aquós i la seua posterior reutilització.
Al quart capítol de la tesi doctoral s'aborda la preparació de materials adsorbents de baix cost econòmic per a l'eliminació de bor en medi aquòs. En primer lloc, s'empra, com a suport inorgànic, UVM-7 una sílice mesoporosa amb un sistema bimodal de porus. Aquest material té una capacitat d'adsorció molt elevadadeprés de la seua funcionalització amb el corresponent polialcohol (tal i com s'exposa al capítol anterior), no obstant això els reactius que s'utilitzen per a la seua síntesi tetraetilortosilicat com a font de sílice i bromur de cetiltrimetilamoni com agent director d'estructura són molt cars, per tant el material final presenta un elevat cost. En aquest capítol es presenta com alternativa altres materials que puguen actuar com a suports inorgànics: UVM-11, material mesoporòs que no requereix d'agent director d'estructura durant la seua síntesi, dos xerogels en porus en el rang meso i una sílice comercial nanoparticulada amb elevada superficie específica. Una vegada sintetitzats i caracteritzats els cinc suports es funcionalitzen en gluconamides, que són els components actius front a la adsorció de bor. Finalment, es realitza un estudi comparatiu de la capacitat d'el¿liminació de bor dels cinc materials preparats. Els materials de baix cost estudiats presenten una capacitat de eliminació de bor semblant als materials de major cost i als materials comercialment disponibles.
Per últim, al capítol cinc d'aquesta tesi doctoral, s'aborda l'estudi del mecanisme d'adsorció de bor als materials actius preparats (basats en UVM-7 com a suport inorgànic) mitjançant medides de resonància magnética nuclear de sólids, tant de 13C com de 11B emprant tècniques de rotació en àngul màgic, polarització creuada, i el desacoplament dipolar heteronuclear. Per a ell es prepara un material híbrid format per una matriu de UVM-7 funcionalitzada amb gluconamides i aquest sòlid es posa en contacte amb diferents quantitats de bor. Els sòlids finals es caracteritzen mitjançant RMN de 13C i de 11B observant-se la formació de borésters entre els grups diol de les gluconamides anclades i el bor adsorbit. Quan la concentració de bor emprada és baixa es formen complexos bisquelats (B:glucosa = 1:2) mentre que a concentracions més altes comencen a formar-se complexos monoquelats (B:glucosa = 1:1). Aquest treball és va realitzar ne col¿laboració amb el grup d'investigació de "Materials sol-gel i RMN", perteneixent al centre "Chimie de la matière condensée de Paris" de la "Université Pierre et Marie Curie".<br>Sanfeliu Cano, C. (2016). Organic-inorganic hybrid materials for boron removal from aqueous media [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/63277<br>TESIS
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Seewöster, Tim. "Controlling von Life-cycle cost-Verträgen produzierender Dienstleister /." Berlin : Logos-Verl, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015425460&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Mangram, Jeffery A. "Struggles over meaning /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.
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Ahlgren, Lucas. "Total cost of ownership of electric cars as a tool for the public." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280798.
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Sustainability and the role of battery electric vehicles (BEVs) in the shift to more sustainable transportation are gaining more and more attention in society today. However, only 4.3% of new passenger car registrations in Sweden were BEVs in 2019. High purchase prices are considered a major barrier to BEV purchases. But the purchase price alone does not reflect what the consumer pays for owning a vehicle. Previous research shows that BEVs could be cheaper compared to conventional vehicles such as internal combustion engine vehicles (ICEVs) from a Total Cost of Ownership (TCO) perspective. Lack of knowledge about TCO can lead to uneconomical purchase decisions. Moreover, lower adoption rates of BEVs, although BEVs can be more cost-effective and better for the environment in the long run. This paper reports on an exploratory research process including the development and user study of a TCO tool aimed for the public. The purpose is to better understand how a TCO tool influences peoples’ inclination towards purchasing a BEV. Based on an iterative design process, a web application was developed to help car consumers calculate and visualize TCO of new passenger cars. The web application was then used in a user study consisting of think-aloud evaluations and semi-structured interviews with car consumers about the prototype. The conclusion point towards an interesting direction for a TCO tool moving forward. This study suggests that a TCO tool can make users aware of the cost benefits of owning a BEV. However, more research is needed to understand if this realisation is enough to have an effect on BEV purchases.<br>Hållbarhet och elbilens roll i skiftet till mer hållbara transporter är två områden som får allt mer uppmärksamhet i samhället idag. Trots det var det endast 4.3% av alla nyregistrerade personbilar som var elbilar i Sverige under 2019. Höga inköpspriser anses vara ett stort hinder som begränsar försäljningen av elbilar. Dock reflekterar inte inköpspriset vad konsumenten faktiskt betalar för att äga en bil. Tidigare forskning visar att elbilar kan vara billigare i jämförelse med konventionella fordon såsom förbränningsbilar baserat på den totala ägandekostnaden (TCO). Brist på kunskap om TCO kan leda till oekonomiska inköpsbeslut. Men också lägre försäljning av elbilar, trots att elbilen kan vara mer kostnadseffektiv och bättre för miljön i längden. Denna uppsats beskriver en undersökande forskningsprocess med målet att utveckla ett TCO-verktyg för allmänheten. Därtill genomfördes en användarstudie för att studera hur verktyget påverkar människors benägenhet att köpa en elbil. Utifrån en iterativ designprocess, utvecklandes en webbapplikation. Detta med syftet att hjälpa bilkonsumenter beräkna samt visualisera TCO för nyproducerade personbilar. Webbapplikationen användes sedan i en användarstudie bestående av think-aloud utvärderingar samt efterföljande intervjuer med bilkonsumenter kring prototypen. Slutsatsen tyder på en intressant riktning för användandet av ett TCO-verktyg i framtiden. Denna studie pekar på att ett TCO-verktyg kan hjälpa användarna att förstå kostnadsfördelarna med att äga en elbil. Dock behövs mer forskning för att svara på om denna insikten är tillräckligt för att ha en effekt på elbilsköp.
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Carcia, Dawn E. "Spanish-language media, text messaging and myspace : the creation of a new counterpublic sphere in California /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Austin, Meredith L. "Engage the media Coast Guard's public affairs posture during the response to Hurricane Katrina." Thesis, Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion.exe/07Mar%5FAustin.pdf.
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Thesis (M.A. in Security Studies (Homeland Security and Defense))--Naval Postgraduate School, March 2007.<br>Thesis Advisor(s): Gail Thomas. "March 2007." Includes bibliographical references (p. 111-116). Also available in print.
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Lee, Jong Hyuk. "Effects of story deviance, context, and personal involvement on information processing of news stories a Web-tracking analysis of exposure, attention, and memory retention /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.
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Choi, Yun Jung. "Effects of order and proportion of positive scenes in broadcast news on memory, candidate evaluation, and voting intention." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.
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Beliso-De, Jesú́́́s Aisha Mahina. "Becoming Santeria : a transnational study of cultural politics, media and religion in Cuba and the United States /." May be available electronically:, 2009. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
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Skelly, Vernon Michael. "A cost-effectiveness analysis of alternative guided media for the backbone cable plant portion of the Base Information Transfer System." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/26440.
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Leprich, Uwe. "Least cost planning als Regulierungskonzept : neue ökonomische Strategien zur rationellen Verwendung elektrischer Energie /." Freiburg [Breisgau] : Öko-Inst, 1994. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=006157639&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Lewis, Jeff S. "Assessing the Safety Impacts of Access Management Techniques." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1342.pdf.
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Salvador, Emily M. "Funnel Vision : low-cost auto-stereoscopic 360-degree display with conical reflection and radial lenticular + contextual artificially intelligent character with procedural animation." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123645.
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Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 71-75).<br>Every year, we progress towards a new reality where digital content blends seamlessly with our physical world. Augmented reality (AR) headsets and volumetric displays afford us the ability to create worlds that are as rich as the movies we watch and interact with media in ways that contextualize our environments. However, AR headset devices can only be experienced by an individual, and most volumetric displays typically are fragile, expensive and/or have reciprocating components. Funnel Vision aims to bring 3D lightfields to the physical realm using lenticular rendering, conical reflection, and a 4K monitor. The need for inexpensive, reliable 3D, 360-degree display technologies grows as AR applications continue to increase in popularity. In real-time, this system creates an AR experience that can be viewed from any angle with primarily inexpensive, readily-available components. The radial optics partitions views generated real-time in Unity, which are then reflected off a mirrored cone, to produce a volumetric image. Additionally, this system provides affordances not available with existing devices given that it is portable, perspective-occluding, and collaborative. I created a 3D character that animates and responds in real-time based on human interaction and emotional evaluations to highlight the capabilities of this unique display. Ultimately, I hope this thesis will inspire the entertainment and consumer electronics industries to pursue this novel display technology that brings characters to life and showcases effects at the same fidelity as they exist in the digital world..<br>by Emily M. Salvador.<br>S.M.<br>S.M. Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences
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Perraton, H. D. "Costs and effects of mass media for adult basic education : a study in comparative evaluation." Thesis, University College London (University of London), 1985. http://discovery.ucl.ac.uk/10019581/.
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Köhler, Andrea. "Wertschöpfungsstrukturen von traditionellen Flughäfen und Low-Cost-Airports in Deutschland /." Trier : FTM Forschungskreis Tourismus-Management, 2004. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=013333870&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Smith, Patricia J. "A relationship-based approach to understanding the role of race cues in third-person perception." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
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Asencios, Torres Valery Melissa, and Cuadros Ana Gabriela Delgado. "Acciones de social media marketing en instagram y su relación con la intención de compra en marcas de joyas low cost." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/655444.
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Esta investigación tiene como objetivo entender la relación de las acciones de social media con la intención de compra en páginas de Instagram de marcas de joyas low cost, ya que dichas marcas han ido tomando notoriedad en redes sociales y las necesidades de los consumidores han ido migrando hacia joyas de precio accesible. Las marcas que hemos tomado como referencia en nuestra investigación son aquellas que tienen presencia en Instagram y cuentan con módulos o locales en centros comerciales, ya que, son las que tienen mayor preferencia por los clientes debido a la relación calidad - precio. Asimismo, busca entender cuáles son las acciones recurrentes en las marcas de joyas low cost y cuáles tiene mayor relación con la intención de compra.<br>This research aims to understand the relationship of social media actions with the purchase intention on Instagram pages of low-cost jewelry brands, since these brands have been gaining notoriety on social networks and the needs of consumers have been migrating toward affordable jewelry. The brands that we have taken as a reference in our research are those that have a presence on Instagram and have modules or stores in shopping centers, since they are the ones that have the greatest preference for customers due to the quality-price ratio. Likewise, it seeks to understand which ones with the recurring actions in low cost jewelry brands and which ones have a greater relationship with the purchase intention.<br>Trabajo de investigación
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Zhang, Maggie Ting. "A screened window on the world? news framing in United States international coverage /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.
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Kouassi, Brice Clément. "Sitios web y social media en la comunicación de los destinos turísticos de Costa de Marfil." Doctoral thesis, Universitat Rovira i Virgili, 2018. http://hdl.handle.net/10803/525814.
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La present tesi doctoral té com a objecte investigar la comunicació online de les destinacions turístiques de la Costa d'Ivori. L'estudi que es realitza tant a nivell nacional com regional, no pretén investigar l'estratègia de comunicació de les OMDs del país, sinó analitzar com fan servir les plataformes web i social media per comunicar els seus atractius turístics i la seva marca. Mitjançant aplicació de l'Índex de Qualitat Web i de la plantilla d'Anàlisi de la comunicació de la marca a través dels mitjans socials, s'avalua la qualitat de la comunicació de la marca en els llocs web oficials i els perfils de Facebook i Twitter, tant de Côte d’Ivoire Tourisme, OMD nacional, com de Sodertour-Lacs, OMD regional. L'estudi conclou que les marques creades per les OMDs de Costa d'Ivori no tenen valors emocionals, a més de no representar les destinacions sinó a les pròpies OMDs. Conseqüentment, aquestes marques apareixen com una eina de comunicació amb un poder limitat per comunicar de manera efectiva la singularitat de les destinacions. L'estudi conclou també que les OMDs de Costa d'Ivori utilitzen els seus llocs web i els seus perfils de social media principalment per informar, desaprofitant les oportunitats d'interactivitat, diàleg i participació que ofereixen aquests mitjans. Finalment, aquesta tesi constitueix un estudi d'interès per la seva contribució a un millor coneixement de l'estat de la comunicació turística i de la marca de destinació a Costa d'Ivori, així com per la seva aportació pel que fa a un ús més efectiu dels mitjans de comunicació online per part de les destinacions d'aquest país.<br>La presente tesis doctoral tiene como objeto investigar la comunicación online de los destinos turísticos de Costa de Marfil. El estudio que se realiza tanto a nivel nacional como regional, no pretende investigar la estrategia de comunicación de las OMDs del país, sino analizar cómo usan las plataformas web y social media para comunicar sus atractivos turísticos y su marca. Mediante aplicación del Índice de Calidad web y de la plantilla de Análisis de la comunicación de la marca a través de los social media, se evalúa la calidad de la comunicación de la marca en los sitios web oficiales y los perfiles de Facebook y Twitter, tanto de Côte d’Ivoire Tourisme, OMD nacional, como de Sodertour-Lacs, OMD regional. El estudio concluye que las marcas creadas por las OMDs de Costa de Marfil carecen de valores emocionales, además de no representar a los destinos sino a las propias OMDs. Consecuentemente, estas marcas aparecen como una herramienta de comunicación con un poder limitado para comunicar de manera efectiva la singularidad de los destinos. El estudio concluye también que las OMDs de Costa de Marfil utilizan sus sitios web y sus perfiles de social media principalmente para informar, desaprovechando las oportunidades de interactividad, diálogo y participación que ofrecen estos medios. Finalmente, esta tesis constituye un estudio de interés por su contribución a un mejor conocimiento del estado de la comunicación turística y de la marca de destino en Costa de Marfil, así como por su aportación en cuanto a un uso más efectivo de los medios de comunicación online por parte de los destinos de este país.<br>The purpose of this doctoral thesis is to investigate the online communication of tourist destinations in Ivory Coast. The study carried out both nationally and regionally, does not intend to investigate the communication strategy of the country's DMO, but to analyze how they use the web and social media platforms to communicate their tourist attractions and their brand. Through the application of the Web Quality Index and the Analysis template of brand communication through the social media, the quality of brand communication on official websites and Facebook and Twitter profiles is evaluated, both of Côte d'Ivoire Tourisme, the national DMO, as of Sodertour-Lacs, the regional DMO. The study concludes that the brands created by the DMO of Ivory Coast lack of emotional values, and do not represent the destinations but the DMO themselves. As a result, these brands appear as a communication tool with a limited power to communicate effectively the uniqueness of the destinations. The study also concludes that the DMO of Ivory Coast use their websites and their social media profiles mainly to inform, missing the opportunities for interactivity, dialogue and participation offered by these media. Finally, this thesis is a study of interest for its contribution to a better knowledge of the state of tourist communication and destination brand in Ivory Coast, as well as for its contribution in terms of a more effective use of online media by the destinations in this country.
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Greve, Thor. "Environmental discourses during times of economic crisis : A content analysis of the media in Costa Rica." Thesis, Uppsala universitet, Statsvetenskapliga institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-375125.
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Yuan, Mengtao. "Enhanced and two-dimensional discrete complex image methods for closed-form Green's functions of arbitrary 3-D structures in general multilayered media." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.
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