Institution
McMaster University
Education•Hamilton, Ontario, Canada•
About: McMaster University is a education organization based out in Hamilton, Ontario, Canada. It is known for research contribution in the topics: Population & Health care. The organization has 41361 authors who have published 101269 publications receiving 4251422 citations.
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TL;DR: In this article, the authors propose space mapping (SM) for circuit optimization utilizing a parameter space transformation, which is demonstrated by the optimization of a microstrip structure for which a convenient analytical/empirical model is assumed to be unavailable.
Abstract: We offer space mapping (SM), a fundamental new theory to circuit optimization utilizing a parameter space transformation. This technique is demonstrated by the optimization of a microstrip structure for which a convenient analytical/empirical model is assumed to be unavailable. For illustration, we focus upon a three-section microstrip impedance transformer and a double folded stub microstrip filter and explore various design characteristics utilizing an electromagnetic (EM) field simulator. We propose two distinct EM models: coarse for fast computations, and the corresponding fine for a few more accurate and well-targeted simulations. The coarse model, useful when circuit-theoretic models are not readily available, permits rapid exploration of different starting points, solution robustness, local minima, parameter sensitivities, yield-driven design and other design characteristics within a practical time frame. The computationally intensive fine model is used to verify the space-mapped designs obtained exploiting the coarse model, as well as in the SM process itself. >
584 citations
University of Cambridge1, University College London2, McGill University3, University of Leicester4, University of Bristol5, University of Copenhagen6, University of London7, Copenhagen University Hospital8, University of Queensland9, University of Washington10, University of Vermont11, Sir Charles Gairdner Hospital12, University of Western Australia13, Ontario Institute for Cancer Research14, University of Würzburg15, ETH Zurich16, University of Edinburgh17, University of Warwick18, Utrecht University19, National Heart Foundation of Australia20, Boston University21, University of Kiel22, University of Lübeck23, University Hospital Regensburg24, King's College London25, Mario Negri Institute for Pharmacological Research26, Wake Forest University27, Karolinska Institutet28, University of Leeds29, Harvard University30, Group Health Cooperative31, McMaster University32, University of Oxford33, University of Glasgow34, Imperial College London35, Medical University of Graz36, University of Ulm37, Goethe University Frankfurt38, Lund University39, Helmholtz Zentrum München40, Robert Koch Institute41, Ludwig Maximilian University of Munich42, Umeå University43, University of Pennsylvania44, Johns Hopkins University45, Clinical Trial Service Unit46, Aga Khan University Hospital47, Robertson Centre for Biostatistics48, Tufts University49, University of Bonn50, Erasmus University Rotterdam51, Karolinska University Hospital52, University of Groningen53, Northwestern University54, University of California, Los Angeles55, Glasgow Royal Infirmary56, Glasgow Clinical Research Facility57
TL;DR: Human genetic data indicate that C reactive protein concentration itself is unlikely to be even a modest causal factor in coronary heart disease.
Abstract: Objective To use genetic variants as unconfounded proxies of C reactive protein concentration to study its causal role in coronary heart disease. Design Mendelian randomisation meta-analysis of ind ...
583 citations
TL;DR: Music perception appears to tap auditory mechanisms related to reading that only partially overlap with those related to phonological awareness, suggesting that both linguistic and nonlinguistic general auditory mechanisms are involved in reading.
582 citations
TL;DR: The authors argue that the study of the complaint of pain falls within the purview of epidemiological study, and an analytic survey of 500 randomly selected households on the roster of a group family practice clinic was undertaken to determine the self-reported prevalence rates of any pain complaint.
Abstract: The authors argue that the study of the complaint of pain falls within the purview of epidemiological study. An analytic survey of 500 randomly selected households on the roster of a group family practice clinic was undertaken. The purpose was to determine the self-reported prevalence rates of any pain complaint and to determine the distribution of pain rates according to selected demographic and socioeconomic variables. Sixteen percent of the individuals sampled from a family practice (H.S.O.) had experienced pain within the 2 weeks preceding the survey. The prevalence rate of those with persistent pain was approximately twice that of those with temporary pain. More women than men reported temporary and persistent pain. The age specific morbidity rate for persistent pain increased with age. The back, lower extremities, and head and face were the most frequently identified sites of pain in both subgroups. Persons with persistent pain used health services, both community physicians and hospital care, more frequently than did those with temporary pain. No significant differences between the two groups were reported for physical, social or emotional function although the persistent pain group characterized their general health status more poorly.
582 citations
TL;DR: In this paper, the sulphur isotopic composition of ocean water sulphate was determined using the SF 6 method for samples from various depths of the Geosecs Stations II and 3 and for a single Pacific Ocean surface sample.
582 citations
Authors
Showing all 41721 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Salim Yusuf | 231 | 1439 | 252912 |
| Gordon H. Guyatt | 231 | 1620 | 228631 |
| Simon D. M. White | 189 | 795 | 231645 |
| George Efstathiou | 187 | 637 | 156228 |
| Stuart H. Orkin | 186 | 715 | 112182 |
| Terrie E. Moffitt | 182 | 594 | 150609 |
| John J.V. McMurray | 178 | 1389 | 184502 |
| Jasvinder A. Singh | 176 | 2382 | 223370 |
| Deborah J. Cook | 173 | 907 | 148928 |
| Andrew P. McMahon | 162 | 415 | 90650 |
| Jack Hirsh | 146 | 734 | 86332 |
| Holger J. Schünemann | 141 | 810 | 113169 |
| John A. Peacock | 140 | 565 | 125416 |
| David Price | 138 | 1687 | 93535 |
| Graeme J. Hankey | 137 | 844 | 143373 |