785 research outputs found
Application of Analog Adaptive Filters for Dynamic Sensor Compensation
No full textThis paper investigates the application of analog adaptive techniques to the area of dynamic sensor compensation, of which there is little reported work in the literature. The case is illustrated by showing how the response of a load cell can be improved to speed up the process of measurement. The load cell is a sensor with an oscillatory output in which the measurand contributes to the response parameters. Thus, a compensation filter needs to track variation in measurand whereas a simple, fixed filter is only valid at one specific load value. To facilitate this investigation, computer models for the load cell and the adaptive compensation filter have been developed. To allow a practical implementation of the adaptive techniques, a novel piecewise linearization technique is proposed in order to vary a floating voltage-controlled resistor in a linear manner over a wide range. Simulation and practical results are presented, thus demonstrating the effectiveness of the proposed techniques
Branding the 'Beur' Author Minority Writing and the Media in France
No full textThis book reconsiders authorship by the descendants of North African immigrants to France by consulting how these authors' novels have been discussed and promoted in the national audio-visual media.Cover -- Contents -- Acknowledgements -- List of Illustrations -- 1. Authorship at a Crossroads -- 2. Mehdi Charef and the Invention of Beur Writing -- 3. Competing Visions of Minority Authorship -- 4. Eyewitness Narratives and the Creation of the Beurette -- 5. Rachid Djaïdani and the Shift from Beur to Banlieue Writing -- 6. Revising the Beurette Label -- 7. Sabri Louatah and the Collectif Qui Fait la France? -- Works Cited -- IndexThis book reconsiders authorship by the descendants of North African immigrants to France by consulting how these authors' novels have been discussed and promoted in the national audio-visual media.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
A new, 3D overlapping-sphere model of cell adhesion:
No full textCell adhesion refers to the ability of cells to make enduring and dynamic attachments to extracellular surfaces and to each other; rightly so it is a focal point of current biological research. I have designed a computational framework to model cell adhesion using a modified overlapping-sphere model. A core feature of the model is the three-dimensional representation of a cell surface that can interact mechanically with its environment. The generalization of a cell as a sphere gives our model the compactness to enable the simulations of thousands of cells, comparable to the number of cells typically encountered through small scale studies of early development and disease. Specifically, we use this computational framework to model adhesion between cells in a monolayer and a fibrous environment, cell shape change, as well as cell replication. We also include elements of cell orientation, or cell polarity, and touch on some aspects of mechanical feedback. We explore some general aspects of developmental biology as well as cancer in mammary ducts. Although we emphasize epithelial cells, which are cells that form monolayers, we also briefly consider migratory cells. The major results are that (1) Cells in a monolayer, like sheets and tubes, need to be both mobile and well-connected to adapt to mechanically stresses, (2) Cells that are not polarized do not produce a stable monolayer of cells, (3) Extracellular support, like a basement membrane, can minimize the stresses experienced at cell-cell junctions, (4) Mitosis triggered by tension can help maintain a monolayer of cells, (5) Cell shape needs to be incorporated into models to minimize undesirable stresses, (6) Our computational framework is useful to predict behavior of cells subjected to mechanical forces. As this is a new model, results are chiefly qualitative, and suggest future work in collaboration with experimentalists to verify and quantitate our results.M.S.Includes bibliographical references (p. 79-81)by Mehdi Doum
Emotional Foundations of Individual’s Perception: The Case of Technology Radicalness
No full textDue to the growing importance of enterprise resource planning (ERP) systems, universities and corporate training programs have included such systems into their curricula using novel tools, such as ERP simulation games. To improve our understanding of individuals’ learning patterns, in this study we extend prior cognition based models by incorporating emotions. Moreover, we highlight the role of perceived radicalness, which mediates the relationship between emotions and individual willingness to learn. Our research model draws from the appraisal tendency framework and includes four distinct classes of emotions: challenge, achievement, loss, and deterrence emotions. We conducted a lab experiment to test the model in an ERP simulation game context. The preliminary results indicate that perceived radicalness is an important mechanism via which classes of emotions impact students\u27 learning behaviors. We also found that, in general, negative emotions had more effect on radicalness perceptions compared to positive emotions
Correction: Synthesis and characterization of a new ZIF-67@MgAl 2 O 4 nanocomposite and its adsorption behaviour
No full textPublisher Copyright: © 2021 The Royal Society of Chemistry.The authors regret that an incorrect affiliation was given for co-author Mehdi Bazarganipour in the original article. The correct affiliations are as shown here. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers
Understanding the Perception of Information System Niche: Conceptualization, Measurement, and Validation
No full textThe number of niche technologies is growing, and they are getting noticed. However, the usage dynamics of such systems have not been explored. This study introduces the “niche” information systems (IS) construct to differentiate between mainstream and niche technologies and to illustrate how such differences potentially influence a person’s IS usage behavior. We posit that niche-ness is perceptual, and a measurement to gauge an individual’s niche perception in the domain of systems usage is desired. Resting on Optimal Distinctiveness theory, the study develops a novel conceptualization and operationalization of niche technology perceptions, focusing on social networking systems. Our main contribution includes the examination of the typology of the perceived niche, which results in the development and validation of an eight-item instrument for perceived technology niche through three studies. In addition, by placing the construct in a nomological network in a fourth study, we demonstrate that the perceived technology niche construct is related to IS continuance intention
How Niche Is Niche? Measuring Individuals’ Perception of Technology Niche
No full textDespite the recent advent and popularity of niche technologies, less is known about the adoption dynamics of such systems. In a quest for understanding and differentiating between mainstream vs. niche technologies, and the way such differences influence individuals’ information systems (IS) behaviors, the study argues that a scale to measure individual’s niche perception in the domain of technology usage is needed. Basing on the main argument of the Optimal Distinctiveness theory, the study introduces a much-needed conceptualization and operationalization of niche technology perceptions in the literature. Across three studies, we test a typology of perceived niche and develop and validate a 4-item scale to measure individuals’ niche perceptions in IS domain. As a result, academic researchers may now rely on the developed scale to investigate the dynamics of users’ IS behaviors by incorporating the potential effect of the perceptions of niche in their future research studies
RETHINKING INDUSTRIAL POLICY
No full textDespite the hold of the neoliberal orthodoxy on policy making in developing countries, industrial policy remains important for the promotion of industrial development. However, the context for the design of industrial policy has profoundly changed as a result of new rules governing international trade, the rise of global value chains and marketing networks, and other aspects of globalization. Traditionally, the case for industrial policy has been framed in terms of “market failures” but the paper argues that that is not a sufficient basis. After addressing the traditional points of criticism, an attempt is made to outline the “domains” of industrial policy in the current circumstances, especially for industrially lagging countries. As country contexts differ widely there are no satisfactory blueprints for policy making that countries can readily adopt. As in production decisions, considerable ingenuity and innovation is needed in designing policies. This is all the more necessary as the WTO rules have become increasingly stringent and the rise of international trading networks has created new barriers for young firms to enter the world market. These developments have changed the context but not the importance of policy in industrial development. The paper identifies areas where government intervention is needed and can still make a positive difference.
Latent Ties: Reconnection of Organizations to Boost Innovation
No full textThis paper highlights the temporality dimension of ties. Doing so we respond to recent calls for a more dynamic and processual understanding of networks. We proposed a model in which two antecedents of latent ties, network similarity, and length of the tie, will be tested. Also, our study addresses the relationship between tie latency and innovation. The model tests the impact of the interaction between the number of latent and strong ties on organizations innovative output will be studied. The study highlights the significance of latent ties in coping with the problems of redundancy of dense network and overloading of new weak ties
Reactivating Dormant Ties in Virtual Teams: An Empirical Study on Affiliative Coping and Shared Leadership
No full textThis paper examines how dormant tie reactivation serves as a coping mechanism in highly virtual R&D teams that adopt shared leadership. Drawing on affiliative coping theory, we argue that employees facing heightened stress from distributed responsibilities and limited face-to-face interaction deliberately reconnect with inactive ties. These reactivated dormant ties retain both the familiarity of strong ties and the novelty of weak ties, thereby offering fresh information and trusted collaboration. Integrating dormant tie theory and innovation literature, we develop a multilevel model positing that the combined influences of team virtuality and shared leadership prompt the reactivation of such ties, which in turn facilitates enhanced innovative performance. We propose to test these hypotheses using hierarchical linear modeling of data from R&D scientists in a multinational high-tech organization
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