1,932 research outputs found
Group Photo, Bishop Alberto Timmer, OFM
No full textBishop Alberto Timmer, OFM, in group photo. Shanxi, China. B/W Photo.https://digitalcommons.whitworth.edu/cmh_friars_minor/1038/thumbnail.jp
Blowin' in the wind
No full textThe new Open Jet Facility wind tunnel, which is scheduled to blow its first wind on 24 October, has been a project in the mind of designer Nando Timmer for over twenty years. "I have had moments when I thought it was never going to happen.
Book review Ronald Meester and Joost Hulshof: Wiskunde in je vingers:Pulling down higher mathematics
No full text“Een oppepcursus voor liefhebbers en andere freaks”, zo omschrijven Ronald Meester en Joost Hulshof hun boek W={kunde} in je vingers. Wim Caspers en Mark Timmer, allebei docent aan een middelbare school en lerarenopleider, bekeken het boek ieder vanuit beide rollen en gingen op bezoek bij de auteurs. Directe aanleiding is het gratis online beschikbaar stellen van het boek door de uitgever
Citrus Diseases Exotic to Florida: Phaeoramularia Fruit and Leaf Spot (PFLS)
No full textPP-234, a 3-page illustrated fact sheet by K.-R. Chung and L. W. Timmer, is part of the Citrus Diseases Exotic to Florida series, which aims to provide a basis for evaluating exotic pathogens that may pose potential risks to Florida citrus and create a decision-making framework to prevent their introduction and spread. It answers several questions, including why it is a concern, causal agent, affected cultivars, typical symptoms, how it is spread, and means of detection and control. Includes references. Published by the UF Department of Plant Pathology, February 2007
Citrus Diseases Exotic to Florida: Phaeoramularia Fruit and Leaf Spot (PFLS)
No full textPP-234, a 3-page illustrated fact sheet by K.-R. Chung and L. W. Timmer, is part of the Citrus Diseases Exotic to Florida series, which aims to provide a basis for evaluating exotic pathogens that may pose potential risks to Florida citrus and create a decision-making framework to prevent their introduction and spread. It answers several questions, including why it is a concern, causal agent, affected cultivars, typical symptoms, how it is spread, and means of detection and control. Includes references. Published by the UF Department of Plant Pathology, February 2007
Fundamentals of Citrus Canker Management
No full textPP-231, a 5-page fact sheet by L. W. Timmer, J. H. Graham and H. L. Chamberlain, provides fundamentals of citrus canker management now that the program to eradicate affected trees has ended. It includes information about protecting canker-free areas through decontamination and inoculum suppression, and for areas where canker is endemic it describes the use of windbreaks, copper sprays, leafminer control, and canker-resistant varieties. Published by the UF Department of Plant Pathology, July 2006
Fundamentals of Citrus Canker Management
No full textPP-231, a 5-page fact sheet by L. W. Timmer, J. H. Graham and H. L. Chamberlain, provides fundamentals of citrus canker management now that the program to eradicate affected trees has ended. It includes information about protecting canker-free areas through decontamination and inoculum suppression, and for areas where canker is endemic it describes the use of windbreaks, copper sprays, leafminer control, and canker-resistant varieties. Published by the UF Department of Plant Pathology, July 2006
Fundamentals of Citrus Canker Management
No full textPP-231, a 5-page fact sheet by L. W. Timmer, J. H. Graham and H. L. Chamberlain, provides fundamentals of citrus canker management now that the program to eradicate affected trees has ended. It includes information about protecting canker-free areas through decontamination and inoculum suppression, and for areas where canker is endemic it describes the use of windbreaks, copper sprays, leafminer control, and canker-resistant varieties. Published by the UF Department of Plant Pathology, July 2006
Citrus Crop production science in horticulture./ L. Gene Albrigo, Lukasz L. Stelinski, Lavern W. Timmer.
No full textTitle from PDF title page (viewed October 9, 2019)Includes bibliographical references and index.This second edition of Citrus, like the original by F.S. Davies and L.G. Albrigo, intends to provide the reader with an updated overview of citriculture from a worldwide perspective. Current theories and technological advances in citriculture are emphasized, citing specific examples of how and where they are used. The text begins with a discussion of major production areas with figures and current trends (Chapter 1). The confusing and controversial taxonomic situation for Citrus and related genera is then discussed, emphasizing molecular biology (biotechnological) advances that are clarifying the genetic relationships between various citrus species. This is followed by a discussion of the major commercially important citrus species and cultivars and traditional and current techniques in citrus breeding (Chapter 2). Chapter 3 covers the importance of rootstocks in citriculture and discusses the major rootstocks, their advantages and disadvantages. In Chapter 4, the role of climatic factors in worldwide citrus production is emphasized, including their effects on citrus yields, growth, economic returns and fruit quality. Plant husbandry, including nursery practices, irrigation, fertilizer application, freeze protection, pruning, growth regulator use and weed control is covered in Chapter 5. In Chapter 6, the major pests and recent changes in their distribution are covered. Diseases of citrus, emphasizing major problems and control measures are the topic of Chapter 7. The final chapter (8) deals with postharvest quality, harvesting and handling of citrus fruits, including the importance of biotic and abiotic problems, as well as packinghouse and processing techniques.History, distribution and uses of citrus fruit -- Taxonomy, cultivars and breeding -- Rootstocks -- Environmental constraints on growth, development and physiology of citrus -- Plant husbandry -- Arthropod pests -- Diseases -- Fruit quality, harvesting and postharvest technology.1 online resource (viii, 314 pages)
Cross-spectral analysis of physiological tremor and muscle activity. I. Theory and application to unsynchronized EMG
No full textIntroduction Time series of hand tremor and the related muscle activities of the flexor and extensor muscles are obtained by measuring the acceleration of the hand (denoted here by ACC) and the surface electromyogram (denoted here by EMG). The ACC data of physiological tremor have been described as a linear stochastic process driven by uncorrelated firing motoneurons (Stiles and Randall 1967; Randall 1973; Rietz and Stiles 1974; Elble and Koller 1990; Gantert et al. 1992; Timmer et al. 1993). The description of physiological tremor by a linear model is reasonable because linear approximations hold due to its small amplitude. These linear stochastic processes and their spectral and cross-spectral properties were studied exhaustively (Bloomfield 1976; Brockwell and Davis 1987; Priestley 1989). Usually, they are denoted by autoregressive processes, since actual values are given by a linear combination of past values plus a driving noise. In terms of physics, these processes are
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