Science teacher educators prepare and provide professional development for teachers at all grade levels. They seek to improve conditions in classroom teaching and learning, professional development, and teacher recruitment and retention. Science Teacher Educators as K-12 Teachers: Practicing What We Teach tells the story of sixteen teacher educators who stepped away from their traditional role and entered the classroom to teach children and adolescents in public schools and informal settings. It details the practical and theoretical insights that these members of the Association of Science Teacher Educators (ASTE) earned from experiences ranging from periodic guest teaching to full-time engagement in the teaching role. Science Teacher Educators as K-12 Teachers shows science teacher educators as professionals engaged in reflective analysis of their beliefs about and experiences with teaching children or adolescents science. With their ideas about instruction and learning challenged, these educators became more aware of the circumstances today's teachers face. Their honest accounts reveal that through teaching children and adolescents, teacher educators can also renew themselves and expand their identities as well as their understanding of themselves in the profession and in relation to others. Science Teacher Educators as K-12 Teachers will appeal to all those with an interest in science education, from teacher educators to science teachers, as well as teacher educators in other disciplines. Its narratives and insights may even inspire more teacher educators to envision new opportunities to serve teachers, K-12 learners and the local community through a variety of teaching arrangements in public schools and informal education settings.

The Internet has evolved from an academic network for data applications such as le transfer and net news, to a global general-purpose network used for a variety of different applications-electronic mail, voice over IP, television, peer-to-peer le sharing, video streaming and many more. The heterogeneity of applications results in rather different application requirements in terms of bandwidth, delay, loss, etc. Ideally, the underlying network supports Quality-of-Service parameters such that - plications can request the desired services from the network and do not need to take actions by themselves to achieve the desired communication quality. Initially, the Internet was not designed to support Quality of Service, and only in the last decade have appropriate mechanisms been developed. Those mechanisms operate mainly on theInternetProtocol(IP) level, butalso network-speci cmechanisms-e. g., targeted to particular wired/wireless access network technologies-are required. The goal of the European 6th Framework Programme (FP6) Integrated Project "End-to-end Quality of Service Support over Heterogeneous Networks" (EuQoS) was to develop, implement and evaluate concepts and mechanisms to support QoS end-to-end, meaning that QoS mechanisms in end systems, access networks, inter- main links and within domains must be supported. The EuQoS project developed an impressiveset ofinnovativesolutionsandnovelscienti cideastosupportend-to-end QoS on the Internet. New mechanisms and concepts were designed and implemented in a European-wide distributed testbed. In addition to the rather technical design and implementation work, the project also developed training material introducing basic QoS mechanisms and techniques.

An inspiring compendium of idiosyncratic interiors assembled around eclectic collections of objects with life and history The once rarified and exclusive world of antiques is bursting open thanks to a new generation of collectors. The New Antiquarians captures 17 of the spaces of these young connoisseurs, spirited interiors formed from unorthodox approaches to collecting and living with objects with history. Flouting conventions of good taste and revealing irreverent modes of decorating with antiques that echo the way we consume visual material today, they brazenly blend the historical and the contemporary, embrace anachronism and pastiche, employ serious knowledge with humor and wit, and consider historical objects through the lens of present-day values. The New Antiquarians, featuring residences on both sides of the Atlantic, is an exuberant and accessible entry point into the once staid world of antiques with featured collectors of all stripes, with varied interests and resources. Collectors whose homes are featured include: Jared Austin; Emily Adams Bode Aujla & Aaron Singh Aujla; Pablo Bronstein; Collier Calandruccio; Adam Charlap Hyman; Emily Eerdmans; Jared Frank; Andrew LaMar Hopkins; Kyle Marshall; Sean McNanney & Sinan Tuncay; Avril Nolan & Quy Nguyen; Camille Okhio; Jeremy K. Simien; Abel Sloane & Ruby Woodhouse; Samuel Snider; Alex Tieghi-Walker; and Giancarlo Valle & Jane Keltner de Valle.

The Internet has evolved from an academic network for data applications such as le transfer and net news, to a global general-purpose network used for a variety of different applications-electronic mail, voice over IP, television, peer-to-peer le sharing, video streaming and many more. The heterogeneity of applications results in rather different application requirements in terms of bandwidth, delay, loss, etc. Ideally, the underlying network supports Quality-of-Service parameters such that - plications can request the desired services from the network and do not need to take actions by themselves to achieve the desired communication quality. Initially, the Internet was not designed to support Quality of Service, and only in the last decade have appropriate mechanisms been developed. Those mechanisms operate mainly on theInternetProtocol(IP) level, butalso network-speci cmechanisms-e. g., targeted to particular wired/wireless access network technologies-are required. The goal of the European 6th Framework Programme (FP6) Integrated Project "End-to-end Quality of Service Support over Heterogeneous Networks" (EuQoS) was to develop, implement and evaluate concepts and mechanisms to support QoS end-to-end, meaning that QoS mechanisms in end systems, access networks, inter- main links and within domains must be supported. The EuQoS project developed an impressiveset ofinnovativesolutionsandnovelscienti cideastosupportend-to-end QoS on the Internet. New mechanisms and concepts were designed and implemented in a European-wide distributed testbed. In addition to the rather technical design and implementation work, the project also developed training material introducing basic QoS mechanisms and techniques.

Welcome totheproceedings ofCloudComp 2009. A computing cloudis more thana collection of computer resources, because itpro vides mechanisms to manage those resources. In a cloud computing platform, software is migrating from the desktop to the "clouds," promising users, at any time and anywhere, access totheirprograms anddata. Thisyear, 44 academic, industrial andstudent papers from all overthe world were submitted, of which 17were accepted as regular longpapers. Additionally, threewere included as shortpapers on hottopics. The Program Committee appreciates the time andeffortall of the researchers put into preparing theirpapers. Many thanks also to themembers oftheProgram Committee andtheexternal reviewers foralloftheirhard workin reading, evaluating, and providing detailed feedback. Without the contribu tions of both of these groups, CloudComp would not have been such a lively symposium. The symposium featured keynote addresses by Jesus Villasante, Head of Unit, European Commission, Dane Walther, Director of Custom Engineering, Akamai Technologies Inc. Cambridge, MA, USA, Greg Malewicz, Google, Mountain View, CA, USA, andMauro Campanella, Consortium GARR, Italy. A scientific visitof the Leibniz Supercomputer Centre (LRZ), Bavarian Academy of Science, Garching (Munich), was organized during the conference. The visit was hosted byProf.A. Bode. We feel that the symposium willgrow and develop in its service to the research community within bothacademia andindustry."

The Art of Teaching Science emphasizes a humanistic, experiential, and constructivist approach to teaching and learning, and integrates a wide variety of pedagogical tools. Becoming a science teacher is a creative process, and this innovative textbook encourages students to construct ideas about science teaching through their interactions with peers, mentors, and instructors, and through hands-on, minds-on activities designed to foster a collaborative, thoughtful learning environment. This second edition retains key features such as inquiry-based activities and case studies throughout, while simultaneously adding new material on the impact of standardized testing on inquiry-based science, and explicit links to science teaching standards. Also included are expanded resources like a comprehensive website, a streamlined format and updated content, making the experiential tools in the book even more useful for both pre- and in-service science teachers. Special Features: Each chapter is organized into two sections: one that focuses on content and theme; and one that contains a variety of strategies for extending chapter concepts outside the classroom Case studies open each chapter to highlight real-world scenarios and to connect theory to teaching practice Contains 33 Inquiry Activities that provide opportunities to explore the dimensions of science teaching and increase professional expertise Problems and Extensions, On the Web Resources and Readings guide students to further critical investigation of important concepts and topics. An extensive companion website includes even more student and instructor resources, such as interviews with practicing science teachers, articles from the literature, chapter PowerPoint slides, syllabus helpers, additional case studies, activities, and more. Visit http://www.routledge.com/textbooks/9780415965286 to access this additional material.

The 1999 International Workshop on Interactive Distributed Multimedia Sys tems and Telecommunication Services (IDMS) in Toulouse is the sixth in a se ries that started in 1992. The previous workshops were held in Stuttgart in 1992, Hamburg in 1994, Berlin in 1996, Darmstadt in 1997, and Oslo in 1998. The area of interest of IDMS ranges from basic system technologies, such as networking and operating system support, to all kinds of teleservices and distributed multimedia applications. Technical solutions for telecommunications and distributed multimedia systems are merging and quality-of-service (QoS) will play a key role in both areas. However, the range from basic system tech nologies to distributed mutlimedia applications and teleservices is still very broad and we have to understand the implications of multimedia applications and their requirements for middleware and networks. We are challenged to develop new and more fitting solutions for all distributed multimedia systems and telecom munication services to meet the requirements of the future information society."

Petri nets offer a mathematically defined technique for the specification, design, analysis, verification and performance evaluation of concurrent distributed systems. They offer not only precise semantics and a theoretical foundation, but also a graphical form that facilitates the understanding of both information and control flow within the same formalism. As an intuitively appealing graphical form of presentation, Petri nets are the model of choice in various applications.
Communications networks, ranging from traditional telecommunication systems to advanced Internet-based information services, are inherently distributed and comprise systems with concurrently operating components. This volume presents a selection of the latest advances in the use of Petri nets for the modeling, analysis and management of communication networks and systems in the broadest sense of these terms.

This book constitutes the proceedings of the 16th International Conference on Application and Theory of Petri Nets, held in Torino, Italy in June 1995
The 26 revised refereed papers presented were selected from 73 submissions from 22 countries; in addition there are abstracts or full papers of the three invited talks. All theoretical and applicational aspects are addressed by the contributors coming from industry and academia. This volume representatively documents the progress achieved in this application-oriented area of research and development since the predecessor conference held one year earlier.

The Art of Teaching Science emphasizes a humanistic, experiential, and constructivist approach to teaching and learning, and integrates a wide variety of pedagogical tools. Becoming a science teacher is a creative process, and this innovative textbook encourages students to construct ideas about science teaching through their interactions with peers, mentors, and instructors, and through hands-on, minds-on activities designed to foster a collaborative, thoughtful learning environment.

This second edition retains key features such as inquiry-based activities and case studies throughout, while simultaneously adding new material on the impact of standardized testing on inquiry-based science, and explicit links to science teaching standards. Also included are expanded resources like a comprehensive website, a streamlined format and updated content, making the experiential tools in the book even more useful for both pre- and in-service science teachers.

Special Features

• Each chapter is organized into two sections: one that focuses on content and theme; and one that contains a variety of strategies for extending chapter concepts outside the classroom
• Case studies open each chapter to highlight real-world scenarios and to connect theory to teaching practice
• Contains 33 Inquiry Activities that provide opportunities to explore the dimensions of science teaching and increase professional expertise
• Problems and Extensions, On the Web Resources and Readings guide students to further critical investigation of important concepts and topics.

An extensive companion website includes even more student and instructor resources, such as interviews with practicing science teachers, articles from the literature, chapter PowerPoint slides, syllabus helpers, additional case studies, activities, and more.

Visit http: //www.routledge.com/textbooks/9780415965286 to access this additional material.