284 research outputs found
Emulation in the context of digital art and cultural heritage preservation: Requirements, Approaches and yet so much more to do
The article focuses on current approaches and potentials for emulation technologies within the cultural sector. In order to mark the field, practical examples are given. They convey some of the interests of "computer culture enthusiasts”, who engage themselves within cultural production and preservation. In order to sustain their heritage, they have started applying emulation technologies long before traditional institutions. Furthermore, institutionalized interests of cultural memory institutions are explained. Opposed to the enthusiasts' examples, they focus on the process of value creation within the cultural sector. Opposed to the formerly given examples, this approach is normally centered on (single) "objects” and their specifity, originality, authenticity etc. Coming to a conclusion we ask how far these two seemingly opposing lines might become reconciled. The theory of digital memory seems to be adapted for this alliance and broadens an outlook on future research activitie
Bus Ride
Jese Espenschied is a 27 year old writer from Northwest Arkansas. He is a senior creative writing ma jor at the University of Arkansas in Fayetteville. When he is not writing or studying, Jese enjoys Pc gaming and music
Changes in Older and Younger Woods in West-Central Ohio
Author Institution: Dept. of Biological Sciences, Wright State University, OHThis study examines changes in two forest stands in the Quercus-Acer saccharum forest region of west central Ohio: an old-growth stand changing from Quercus-dominated to Acer saccharum-dominated and a stand established following agricultural abandonment about 1950. Both stands are in the Wright State University woods. Permanent plots were sampled in 1980 (younger stand only), 1982 (older stand only), 1993, and 2000. The older stand had more small, fewer intermediate, and more large stems than
the younger stand. The plot in the new stand showed a bell-shaped distribution with most stems established shortly after land abandonment. Mortality decreased and growth increased with stem size for both stands. Acer saccharum in all sizes and large Quercus dominated the older stand. The younger stand was dominated by Robinia pseudo-acacia with Acer saccharum also important. In the older plots small stems generally were clustered, intermediate-sized stems randomly distributed, and the largest stems regularly distributed. In the younger plot small stems were aggregated while larger ones were randomly distributed. Quercus regenerated well until the late 1800s, singly or in small groups, but few stems have become established since 1900. Quercus may need fires or grazing to regenerate successfully. Both stands are changing to increased dominance by Acer saccharum and other shade-tolerant species as they lose species (Robinia pseudo-acacia in the younger stand, Quercus in the older stand) more successful under past than present conditions
Взаимосвязь понятий «стиль» и «имидж» как эстетическая проблема
<div><p>The intestinal microbiota influences the development and function of myeloid lineages such as neutrophils, but the underlying molecular mechanisms are unresolved. Using gnotobiotic zebrafish, we identified the immune effector Serum amyloid A (Saa) as one of the most highly induced transcripts in digestive tissues following microbiota colonization. Saa is a conserved secreted protein produced in the intestine and liver with described effects on neutrophils <i>in vitro</i>, however its <i>in vivo</i> functions remain poorly defined. We engineered <i>saa</i> mutant zebrafish to test requirements for Saa on innate immunity <i>in vivo</i>. Zebrafish mutant for <i>saa</i> displayed impaired neutrophil responses to wounding but augmented clearance of pathogenic bacteria. At baseline, <i>saa</i> mutants exhibited moderate neutrophilia and altered neutrophil tissue distribution. Molecular and functional analyses of isolated neutrophils revealed that Saa suppresses expression of pro-inflammatory markers and bactericidal activity. Saa’s effects on neutrophils depended on microbiota colonization, suggesting this protein mediates the microbiota’s effects on host innate immunity. To test tissue-specific roles of Saa on neutrophil function, we over-expressed <i>saa</i> in the intestine or liver and found that sufficient to partially complement neutrophil phenotypes observed in <i>saa</i> mutants. These results indicate Saa produced by the intestine in response to microbiota serves as a systemic signal to neutrophils to restrict aberrant activation, decreasing inflammatory tone and bacterial killing potential while simultaneously enhancing their ability to migrate to wounds.</p></div
Made in America? Assumptions About Service Learning Pedagogy as Transnational: A Comparison Between Ireland and the United States
Using exploratory, qualitative interviews, the authors studied conceptions of academic service-learning in the United States and the Republic of Ireland in order to elucidate the ways in which culture and social context shaped practitioners\u27 perceptions and practices regarding service-learning pedagogy. Participants articulated a shared understanding of service-learning, identified similar barriers to utilizing service-learning and institutionalizing its practice, and discussed tensions surrounding the purpose of service-learning. However, Irish participants distanced their practice from the historical and cultural context of U.S. service-learning, demonstrating the process of localization. We conclude that the overarching tenets of service-learning may be transferable but the social, cultural, economic, historical, and political conditions of individual countries define how these are to be achieved
The Control System for the X-33 Linear Aerospike Engine
The linear aerospike engine is being developed for single-stage -to-orbit (SSTO) applications. The primary advantages of a linear aerospike engine over a conventional bell nozzle engine include altitude compensation, which provides enhanced performance, and lower vehicle weight resulting from the integration of the engine into the vehicle structure. A feature of this integration is the ability to provide thrust vector control (TVC) by differential throttling of the engine combustion elements, rather than the more conventional approach of gimballing the entire engine. An analysis of the X-33 flight trajectories has shown that it is necessary to provide +/- 15% roll, pitch and yaw TVC authority with an optional capability of +/- 30% pitch at select times during the mission. The TVC performance requirements for X-33 engine became a major driver in the design of the engine control system. The thrust level of the X-33 engine as well as the amount of TVC are managed by a control system which consists of electronic, instrumentation, propellant valves, electro-mechanical actuators, spark igniters, and harnesses. The engine control system is responsible for the thrust control, mixture ratio control, thrust vector control, engine health monitoring, and communication to the vehicle during all operational modes of the engine (checkout, pre-start, start, main-stage, shutdown and post shutdown). The methodology for thrust vector control, the health monitoring approach which includes failure detection, isolation, and response, and the basic control system design are the topic of this paper. As an additional point of interest a brief description of the X-33 engine system will be included in this paper
Honda: Pollution Prevention
Overview of pollution prevention and sustainability projects undertaken by Honda of America Manufacturing plants in Ohio.Ope
Exercise Showcase: Teaching Doctrine and Skills Simultaneously
Many of our colleagues believe the law teaching can be divided into pure doctrine and pure skills. However, I think that may be pure fiction. My job as a Professor of Skills, teaching both doctrinal and skills classes, is to bring my skills teaching into my doctrinal teaching, and my doctrinal teaching into my skills teaching. Today\u27s Exercise Showcase, for me, is an opportunity to take a corporate law case that appears in many business organization case books, and show you how to tackle it from a skills perspective, and then also from a doctrinal perspective. So, we are going to bridge the gap between skills teaching and doctrinal teaching
- …
