A Course Book

A Course Book

A Course Book

A Course Book

A Course Book

A Course Book

This volume contains the proceedings of the Workshop on Topology held at the Pontificia Universidade Catolica in Rio de Janeiro in January 1992. Bringing together about one hundred mathematicians from Brazil and around the world, the workshop covered a variety of topics in differential and algebraic topology, including group actions, foliations, low-dimensional topology, and connections to differential geometry. The main concentration was on foliation theory, but there was a lively exchange on other current topics in topology. The volume contains an excellent list of open problems in foliation research, prepared with the participation of some of the top world experts in this area. Also presented here are two surveys on group actions---finite group actions and rigidity theory for Anosov actions---as well as an elementary survey of Thurston's geometric topology in dimensions 2 and 3 that would be accessible to advanced undergraduates and graduate students.

Waveguide Junction Circulators brings together for the first time all the design aspects of this class of device. In a typical application the circulator allows a single antenna to be used for both transmission and reception. Together with semiconductor, passive and electronic devices, the circulator constitutes an essential building block in modern radar, satellite and telecommunication equipment. Features include: * Examination of the properties and adjustments of the 3-port junction circulator and focus on the gyromagnetic resonator * Description of the design of practical classic circulator arrangements * Discussion of aspects of filter theory in the design of the classic 3-port junction circulator * Consideration of practical concerns such as insertion loss and commercial specifications Written by a leading academic authority and experienced industrial consultant, Waveguide Junction Circulators is a vital information source for designers working in microwave engineering. This valuable guide provides the academic researcher with a firm foundation in the theoretical aspects of this class of device whilst offering the industrial engineer an experimental platform for commercial design.

Contents: Objectives and the Learner, Linguistics and the Language Arts Curriculum, The Literature Curriculum, Speaking and the Pupil, Speaking Activities and the Pupil, Spelling and the Language Arts, Spelling in the Language Arts Curriculum, World Selection in the Spelling Curriculum, Vocabulary Development and the Pupil, Listening and the Pupil, Evaluation of Achievement in Language Arts, Reading and the Language Arts, Reading and Vocabulary Development, Reading and the Structure of the English Language, Designing the Reading Curriculum, Reading in the Content Areas, Making uses of Ideas Gleaned from Reading, Improving Teacher Questions in Reading Instruction, Testing and Evaluating Student Achievement in Reading, Handwriting and the Pupil, Writing in the Language Arts Curriculum, Writing Achievement in Education, Reading Poetry in the Language Arts, Poetry in the School, Grouping Pupils for Instruction.