338 research outputs found

    Choo, Sharon

    No full text

    AAC Choo spring barley

    No full text
    ‘AAC Choo’ is a spring, two-row, general purpose barley (Hordeum vulgare L.) released by the Ottawa Research and Development Centre, Agriculture and Agri-Food Canada. AAC Choo is higher in yield, good lodging resistance and moderately susceptible to Fusarium head blight (caused by Fusarium graminearum Schwabe). AAC Choo is recommended for commercial production in eastern Canada.The presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author

    Correction to: Introduction to special collection: collaborating with technology to sell fashion

    No full text
    In the original publication of this article (Choo 2019), the author would like to add the omitted research to the list of this special collection, collaborating with technology to sell fashion

    SPECTROSCOPIC CHARACTERIZATION OF AN ALKYL-SUBSTITUTED CRIEGEE INTERMEDIATE CH3_{3}CHOO AND ITS OH RADICAL PRODUCTS

    No full text
    Author Institution: Department of Chemsitry, University of Pennsylvania, Philadelphia, PA 19104-6323In the atmosphere, cycloaddition of ozone to the double bond of alkenes produces energized Criegee intermediates, which undergo subsequent decay processes to yield OH radicals. In this laboratory, a simple alkyl-substituted Criegee intermediate CH3_{3}CHOO is produced by 248 nm photolysis of CH3_{3}CHI2_{2} and subsequent reaction of CH3_{3}CHI with O2_{2} in a quartz capillary tube reactor, following the same approach utilized for CH2_{2}OO., 20045 (2012).} The CH3_{3}CHOO intermediate (m/z=60) and other products are detected following supersonic expansion using 118 nm VUV ionization in a time-of-flight mass spectrometer. The OH radical products from decomposition of the CH3_{3}CHOO intermediate are also directly detected at m/z=17 using a new UV+VUV ionization scheme, combining UV excitation on the OH A ^2Σ+\Sigma^+-X ^2Π\Pi (1,0) transition with fixed-frequency VUV at 118 nm,, 241102 (2011).} or alternatively by UV laser-induced fluorescence on the OH A-X transition; OH products are also observed from CH2_{2}OO. The CH3_{3}CHOO intermediate is characterized by a strong B 1^1A^\prime-X 1^1A^\prime electronic transition, in which UV excitation near the peak of a broad absorption profile centered at 320 nm results in significant depletion of the CH3_{3}CHOO photoionization signal. The mechanism proposed for OH generation from energized CH3_{3}CHOO and many larger Criegee intermediates is a 1,4 H-atom shift to form vinylhydroperoxide species that decay to produce OH. This reaction scheme provides a non-photolytic source of OH radicals in the atmosphere during night and winter times

    Thermal Energy Recovery from Drinking Water Systems: Assessing Water Quality and Downstream Temperature Effects

    No full text
    Climate change demands for sustainable options for heating and cooling of buildings. Low-temperature thermal energy can be abstracted from the drinking water distribution system (DWDS); this is called thermal energy from drinking water (TED). The possible use of TED as a secondary function of the DWDS raises the question whether this secondary function can exist alongside the primary function (supplying safe and reliable drinking water) and, if so, under what conditions. Using various cases, the potential downstream effects of TED related to drinking water temperature (and hence, downstream increase of cost and CO2emissions for water heating) and microbiological drinking water quality were studied.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Sanitary Engineerin

    Maximizing Water--Food--Energy Nexus Synergies at Basin Scale

    No full text
    In this short paper, we show how solutions for mitigating resource security in one sector can be found in another. We demonstrate—by means of a case study in Burkina Faso and Ghana—how investing in the electricity grid in the south leads to increase food security in the north. A new nexus framework was developed (‘MAXUS’) which was built to understand, simulate and optimize intersectoral (and international) development strategies in the water, food and energy sectors. We believe this new type of geospatial integral resource management, supported by the exponential increase of data availability of the twenty-first century, could finally turn nexus models into decision support tools.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Water Resource

    "Chainsaw Choo Choo" radio episode

    No full text
    An audio recording by Oregon Congressman Les AuCoin on a then recent Oregon forest report. Douglas County requested and paid for the report, led by researcher of Oregon State University School of Forestry, John Sessions. AuCoin points out how Sessions is a civil and forest engineer, not a wildfire scientist, and was seemingly unqualified to author the report. AuCoin states that the best approach to generating healthy forests is by natural recovery. This is one episode from AuCoin's biweekly radio show on Jefferson Public Radio (JPR), which ran after he had retired from office. The majority of episodes feature his commentary on current political events, often focusing on issues important to southern Oregon where JPR is based. This episode aired in 2003

    Shorter Telomere Length in Peripheral Blood Cells Associated With Migraine in Women

    No full text
    Objective.- To evaluate relative telomere length of female migraine patients. Background.- Migraine is a debilitating disorder affecting 6-28% of the population. Studies on the mechanisms of migraine have demonstrated genetic causes but the pathophysiology and subcellular effects of the disease remain poorly understood. Shortened telomere length is associated with age-related or chronic diseases, and induced stresses. Migraine attacks may impart significant stress on cellular function, thus this study investigates a correlation between shortening of telomeres and migraine. Methods.- Relative telomere length was measured using a previously described quantitative polymerase chain reaction method. A regression analysis was performed to assess differences in mean relative telomere length between migraine patients and healthy controls. Results.- The leukocyte telomeres of a cohort of 142 Caucasian female migraine subjects aged 18-77 years and 143 matched 17-77-year-old healthy control Caucasian women were examined. A significantly shorter relative telomere length was observed in the migraine group compared with the control group after adjusting for age and body mass index (P = .001). In addition, age of onset was observed to associate with the loss of relative telomere length, especially at early age of onset (<17 years old). No association was observed between relative telomere length and the severity and frequency of migraine attacks and the duration of migraine. Conclusion.- Telomeres are shorter in migraine patients and there is more variation in telomere length in migraine patients.No Full Tex

    Three essays on globalization and innovation

    No full text
    Globalization is a key variable associated with technological change. This dissertation examines not only the correlation between globalization and innovation, but also the interacting effect of globalization with firm-specific variables on innovation and performance. Essay 1: Why Do Some Countries Hardly Innovate? Evidence from Zero Inflated Negative Binomial Model The patent data from the United States Patent and Trademark Office (USPTO) indicate that among 175 countries, between 1977 and 2010, about 45% hardly generated any innovations. We argue that this group of countries is systematically different from the others who have been innovative, and that non-innovative countries need to possess a minimum level of ability and incentive in order to progress. By employing a zero-inflated negative binomial model based on the patent data from the USPTO, the results show that the significant determinants turning a non-innovative country into an innovative one are active international trade, improved quality of civil liberties, a high level of human capital, and less economic reliance on natural resources. Essay 2: Two Different Effects of R & D on Innovation in South Korea: Evidence from The Firm Level Data At the firm level, innovation can be made through two different effects of research and development (R & D), which are the creative effect and the learning effect. It should be noted that export activities can offer an important source of learning—as important as foreign direct investment (FDI)—and may be exceptionally meaningful for firms in countries with export-oriented economies. Using longitudinal firm-level data for the period of 2000–2009 in South Korea, empirical tests show that the creative effect of R & D is far more important than the learning effects through export and FDI in generating innovation. Essay 3: The Dynamic Relationship between Female Employment and Firm Profitability: A Three-Stage Sigmoid Curve Model and the Influence of Export Female workers are sources of competitive and intangible assets that can enhance a firm’s profitability. I present arguments that the correlation between gender diversity and organizational performance needs to be investigated in terms of more complex corporate circumstances. Empirical analyses of longitudinal firm-level data from South Korea for 2000–2009 show that a firm's female workers are more positively related to a firm's profitability when the firm actively exports. In addition, the results demonstrate a sigmoid curve relationship between female workers and profitability.Ph. D.Includes bibliographical referencesIncludes vitaby Daewoong Cho

    A New Swarm-Based Framework for Handwritten Authorship Identification in Forensic Document Analysis

    No full text
    Feature selection has become the focus of research area for a long time due to immense consumption of high-dimensional data. Originally, the purpose of feature selection is to select the minimally sized subset of features class distribution which is as close as possible to original class distribution. However in this chapter, feature selection is used to obtain the unique individual significant features which are proven very important in handwriting analysis of Writer Identification domain. Writer Identification is one of the areas in pattern recognition that have created a center of attention by many researchers to work in due to the extensive exchange of paper documents. Its principal point is in forensics and biometric application as such the writing style can be used as bio-metric features for authenticating the identity of a writer. Handwriting style is a personal to individual and it is implicitly represented by unique individual significant features that are hidden in individual’s handwriting. These unique features can be used to identify the handwritten authorship accordingly. The use of feature selection as one of the important machine learning task is often disregarded in Writer Identification domain, with only a handful of studies implemented feature selection phase. The key concern in Writer Identification is in acquiring the features reflecting the author of handwriting. Thus, it is an open question whether the extracted features are optimal or near-optimal to identify the author. Therefore, feature extraction and selection of the unique individual significant features are very important in order to identify the writer, moreover to improve the classification accuracy. It relates to invarianceness of authorship where invarianceness between features for intra-class (same writer) is lower than inter-class (different writer). Many researches have been done to develop algorithms for extracting good features that can reflect the authorship with good performance. This chapter instead focuses on identifying the unique individual significant features of word shape by using feature selection method prior the identification task. In this chapter, feature selection is explored in order to find the most unique individual significant features which are the unique features of individual’s writing. This chapter focuses on the integration of Swarm Optimized and Computationally Inexpensive Floating Selection (SOCIFS) feature selection technique into the proposed hybrid of Writer Identification framework 386 S.F. Pratama et al. and feature selection framework, namely Cheap Computational Cost Class-Specific Swarm Sequential Selection (C4S4). Experiments conducted to proof the validity and feasibility of the proposed framework using dataset from IAM Database by comparing the proposed framework to the existing Writer Identification framework and various feature selection techniques and frameworks yield satisfactory results. The results show the proposed framework produces the best result with 99.35% classification accuracy. The promising outcomes are opening the gate to future explorations in Writer Identification domain specifically and other domains generally
    corecore