110 research outputs found

    FINDING CRITICAL SUCCESS FACTORS OF UBIQUITIOUS SUPPLY CHAIN MANAGEMENT

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    The objective of this paper is to identify the critical success factors and to examine their relationship with the benefits of ubiquitous supply chain management (USCM) adoption. To achieve it, this research firstly selected the critical success factors and the benefit issues related to the adoption of USCM through the literature review, case analysis and interview. Second, after collecting the survey data, we empirically investigated the relationship between critical success factors and USCM adoption benefits. Data analysis showed that the adoption of USCM was significantly associated to management factors such as USCM planning, management support, relationship management, new USCM model, process management and risk management. In addition, there was significant association to technical factors such as USCM system infrastructure, USCM technology application, efficient USCM use, USCM network foundation, enacted technology acceptance and USCM development plan. On the basis of research findings, this paper proposes a model of USCM adoption, which is a guideline helping one find the academic foundation for further studies and a practical insight of USCM adoption and ubiquitous computing applications

    How to turn innovative startups into successful businesses: The case of Techperks

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    The Internet of Things, also known by the acronym IoT, comprises all devices and objects that are enabled to be permanently connected to the Internet, being able to identify on the network and communicate with each other. This technology is incorporated into a variety of products that are available today and designed to make life easier for consumers. The result was the emergence of smart cities, connected factories, connected cars, and an enormous amount of many other applications. All of this is evidence of how the world is adapting to the Internet of Things (IoT). IoT is a hot topic in our days and many business models arise from this trend, in form of new technologies, products, and services. However, when it comes to business strategy and profitability, it is not only about having the best idea or the best product but how to market it in the best way and attract the right target. Techperks is a startup built with the objective of bringing new IoT products to Portugal. However, the concept was not innovative enough to succeed as predicted in the Portuguese market. This case aims to highlight the biggest reasons explaining the brand's low performance and serve as a guide of “mistakes to avoid when launching a new innovative business”. It can also be used to stimulate student’s creativity in developing strategies used by Techperks to exploit the brand's total potential. “How should I begin?”: this is the question which students will be able to answer.A Internet das Coisas, tambĂ©m conhecida pelo acrĂłnimo IoT, compreende todos os dispositivos e objetos que se conectam permanentemente Ă  Internet, e que comunicam entre si. DaĂ­, surgiram cidades inteligentes, fĂĄbricas conectadas, carros conectados e um sem nĂșmero de outras aplicaçÔes que nos trazem, todos os dias, novas funcionalidades. Este Ă© um tĂłpico muito relevante e muitos novos modelos de negĂłcios surgem dessa nova tendĂȘncia, sob forma de novas tecnologias, produtos e serviços. Espera-se que muitos provavelmente tenham sucesso, dado o crescimento desta nova era da tecnologia. No entanto, quando se trata de estratĂ©gia de negĂłcios e lucro, nĂŁo se trata apenas de ter a melhor ideia ou o melhor produto, mas tambĂ©m como comercializĂĄ-lo da melhor maneira e atrair o alvo mais atrativo. A startup Techperks foi criada com vista a trazer novos produtos de IoT para Portugal, atravĂ©s da sua revenda. No entanto, o conceito nĂŁo foi inovador o suficiente para criar sucesso no mercado portuguĂȘs e a startup nĂŁo conseguiu instigar sua visĂŁo no mercado. Embora ainda em operação, a loja tem demonstrado resultados aquĂ©m das previsĂ”es. Este caso, tem como objetivo destacar os principais motivos que explicam o fraca performance da marca e servir como um guia para "os erros a serem evitados ao iniciar um novo negĂłcio retalhista inovador". AlĂ©m disso, pode ser utilizado para estimular a criatividade dos alunos no desenvolvimento de estratĂ©gias que poderiam ter sido usadas pela Techperks para evitar o insucesso e utilizar todo o potencial da marca

    Dissonance in Global Financial Law

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    This article explores whether the post-GFC global financial architecture is likely to provide efficient regulation capable of preventing a future crisis from occurring. The article starts with a brief overview of the emergence in the 1970s of global financial architecture. A thorough descriptive analysis of the post-crisis architecture follows, raising serious doubts regarding the current architecture’s ability to accomplish its goal. This analysis is performed in two stages, taking first an outsider’s perspective on the changes the architecture underwent after the crisis and moving then to the inside — the structure and contents of the architecture. Using macro-prudential methodological tools, the establishment of the Financial Stability Board is reviewed, along with three cutting edge regulations: the Basel III framework for banking, the IOSCO’s recommendation for money market funds, and the FSB’s recommendations regarding repurchase agreements. Pointing out the architecture’s perceived failure to provide stability due to severe regulatory arbitrage, the article then widens the lens to explore the implications of the above regulation. The article suggests that the current architecture encourages ‘financialisation’ and pushes the financial system and the real economy further apart. Consequently, the article raises normative concerns regarding the legal foundations of the global financial architecture, and its legitimacy

    Fungal and aflatoxin occurrence in small-scale processed dry foodstuffs sold at informal retail outlets in the Johannesburg metropolis, South Africa

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    Text in EnglishFungal species and their mycotoxins are the most predorminant contaminants of dried agricultural products in sub-Saharan Africa (SSA) and the main species of fungi that can synthesize mycotoxins are Aspergillus, Fusarium and Penicillium. In Africa, aflatoxin is labelled as a great threat to human and animal health due to its high contamination levels reported of aflatoxins in foods. The aim of this study was to survey fungi and aflatoxin contamination of small-scale processed foodstuffs sold at informal retail outlets in the Johannesburg metropolis, South Africa. A total of 270 food samples (10 starch and legume based foods, 11 meat and fish based foods, 22 spices and local condiments, 14 dried fruits and vegetables) were collected from retailers; and analysed four (4) times in different seasons of spring, summer, autumn and winter. Out of the 270 samples analysed, only 27.8% were contaminated with fungal. Of all the six categories of foods analysed, roots and tubers (60.0%), nuts and seeds (40.0%), dried vegetables (37.1%), and the Meat and Insect foods (33.3%) respectively, had the most contaminated samples with fungal respectively. The least contaminated food groups were the fish foods (10.0%) and spices and local condiments (16.7%) respectively. Twenty percent of the 270 dried food analysed were contaminated by Aspergillus species out of which 61.1% of the contaminated samples had fungal counts above 103 cfu/g. Aspergillus niger was the most predominant Aspergillus species identified in all the categories of food samples analysed. Fruits and vegetables (24.4%) and the nuts and seeds (20.0%) food groups had the highest number of samples contaminated with aflatoxin. Peanut flour and Cardamom had the most incidence of aflatoxin. AFB1, AFB2 & AFG1 were the most prominent aflatoxin types recovered from the food samples. Almost all the food samples in which aflatoxin were identified had aflatoxin values above 10ÎŒg/ml.Life and Consumer SciencesM.Sc. (Life Science

    Applications of statistical physics in finance and economics

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    This chapter reviews recent research adopting methods from statistical physics in theoretical or empirical work in economics and nance. The bulk of what has recently become known as 'econophysics' in broader circles draws its motivation from observed scaling laws in nancial markets and the abundance of data available from the economy's nancial sphere. The rst part of this review presents the robust power laws encountered in nancial economics and discusses potential explanations for scaling in nance derived from models of stochastic interactions of traders. Sec. 3 provides an overview over other applications of statistical physics methodology in nance and attempts to evaluate the impact they have had so far on nancial economies. With the following section, the review turns to recent work on the emergence of wealth and income heterogeneity and the recent inception of new strands of research on this topic both within econophysics and the neoclassical economics tradition. The third part reviews the new stylized facts that have been identi ed in cross-sectional data of rm characteristics and agent-based approaches to industrial organization and macroeconomic dynamics that have been motivated by these ndings. We conclude with an assessment of the major methodological contributions of this new strand of research. --

    Systems-Level Support for Mobile Device Connectivity.

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    The rise of handheld computing devices has inspired a great deal of research aimed at addressing the unique problems posed by their mobile, "always-on" nature. In order to help mobile devices navigate a complex world of overlapping, uneven public wireless coverage, one must be mindful of the distinction between nomadic usage and true mobility. Accordingly, systems research must move beyond simply optimizing for a set of local conditions (e.g., finding the best access point for a laptop user in a stationary location) to considering the "derivative of connectivity" when network conditions are constantly in flux. This dissertation presents a new paradigm for networking support on mobile devices. This project has several complementary aspects. As devices encounter network connectivity our system both evaluates the application-level quality of WiFi access points and updates a device-centric mobility model. Together, this mobility model and AP quality database yield "connectivity forecasts," which let applications optimize not just for current network conditions but for the expected big picture to come. Results of a prototype deployment in several cities shows that considering the application-level quality of APs (rather than just signal strength) significantly boosts the success rate of finding a usable access point. Furthermore, this dissertation shows how connectivity forecasts---even with minimal model training time---allow several applications commonly found on mobile devices to reap significant benefits, such as extended battery life. Mobile devices are often within range of multiple connectivity options, however, and choosing just one therefore ignores potential connectivity. This dissertation describes a virtual link layer for Linux, called Juggler, that uses one network card to simultaneously associate with many WiFi APs, ad hoc groups or mesh networks. The results show how Juggler can boost effective bandwidth by striping data across multiple APs, enable seamless 802.11 handoff by preemptively associating with the "next" AP before the current one become unusable, and maintain a modest side-channel to the user's personal area network or mesh network without impacting foreground bandwidth to infrastructure.Ph.D.Computer Science & EngineeringUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/61718/1/tonynich_1.pd

    Annual Report of Undergraduate Research Fellows, August 2012 to May 2013

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    Annual Report of Undergraduate Research Fellows from August 2012 to May 2013

    Innovation for tackling grand challenges : Cleantech industry dynamics and regional context

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    Grand challenges such as climate change put focus away from innovations and innovation policy as engines of economic growth towards fulfilling societal goals and sighting sustainable development. The literature on the geography of innovation has provided valuable insights on innovation activities of firms and industries and how they are positively influenced by co-location. In particular, short geographical distances have been found to facilitate trust, knowledge exchange and interactive learning processes that favour innovation. Innovation activities that address grand challenges have however gained surprisingly little attention in the discipline. This PhD thesis addresses this shortcoming and studies how and why change processes of industries towards more environmentally friendly modes in regions occur – or not occur. In other words, it engages in the question how such industry dynamics are enabled and/or constrained by regional context conditions. Consequently, it also puts central focus on the role, respectively possibilities and limitations of regional innovation policy to support desirable transformation processes. Its theoretical objective is to make a step towards a more coherent conceptual framework in the literature on economic geography regarding how to tackle grand challenges. The dissertation takes a regional innovation system perspective which is complemented by insights from the literature on socio-technical transitions.The development of a bio-based economy which draws on renewable resources from biomass possesses a key role in addressing grand challenges. Empirically, the dissertation studies industries in three different Swedish regions and their undertaking to increasingly, respectively more efficiently use biomass as raw material. The research design is informed by a critical realist perspective and draws largely on qualitative research methods. This PhD thesis spans four articles that are published in or submitted to peer-reviewed journals. The articles are preceded by an introductory chapter which provides the overall theoretical background and framing, the research design and central findings of the dissertation
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