1,720,968 research outputs found

    Plant Variety Protection Office (PVPO)

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    Plant breeders use plant variety protection as an important marketing tool that protects their innovation. The AMS Plant Variety Protection Office (PVPO) provides intellectual property protection to breeders of varieties of seed and tuber (potatoes) propagated plants that are new, distinct, uniform, and stable. Based on the Plant Variety Protection Act, we examine new variety characteristics in order to grant certificates that protect varieties for 20 years (25 years for vines and trees)

    Plant Variety Protection Office - Scanned Certificates

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    The Plant Variety Protection Office (PVPO) Scanned Certificates Database is a collection of Certificates of Protection for new plant varieties that are seed reproduced or tuber propagated. A variety may be represented by seeds, transplants, plants, tubers, tissue culture plantlets and other matter. A Certificate of Protection is awarded to an owner of a variety after an examination shows that it is new, distinct from other varieties, and genetically uniformed and stable through successive generations. This tool allows stakeholders access to the breeding history and morphological characteristics used in developing new plant varieties. This tool contains over 5,000 varieties that have been issued a Certificate of Protection since 1975. Resources in this dataset:Resource Title: Plant Variety Protection Office - Scanned Certificates. File Name: Web Page, url: https://apps.ams.usda.gov/CMS/default.aspx </p

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    CONCENTRATION, MARKET POWER, AND COST EFFICIENCY IN THE CORN SEED INDUSTRY

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    The paper presents a model developed to examine the effects of industry concentration on market power and cost efficiency in the seed industry. In addition, the paper presents preliminary measures of the relative strengths of these effects for the case of the U.S. corn seed industry over the past 3 decades. The model uses conjectural elasticities and is estimated using data collected from USDA sources. The empirical results allow us to distinguish between the market power and cost effects of concentration, and to ascertain the tradeoff between the cost efficiency and market power resulting from higher concentration in the corn seed industry.Marketing,

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    The Evolving Landscape of IP Rights for Plant Varieties in the United States, 1930-2008

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    The United States was the first country in the world to explicitly offer intellectual property protection for plant varieties. Beginning in 1930, asexually reproduced plants were afforded plant patent protection, in 1970 sexually propagated plants could be awarded plant variety protection certificates, and beginning in 1985, courts confirmed that varieties of all types of plants were eligible for utility patents. From 1930 to 2008, a total of 34,340 varietal rights applications were lodged. The number of rights being sought continues to grow, with 42 percent of all the varietal rights claimed since 2000. Contrary to popular perception, most of these rights are for horticultural crops (69 percent), with ornamentals accounting for the lion’s share of the horticulture-related rights (73 percent, or 50 percent of all plant rights). Food and feed crops constitute only 24 percent of the rights sought, although just two crops (corn and soybean) made up 84 percent of the 3,719 varietal rights claimed via utility patents. The structure of these rights has changed dramatically over the years. During the 1930s when the only rights on offer were plant patents, 72 percent of the rights sought were for ornamental crops and individual innovators played a substantial role (50 percent of the rights). By 2004-2008, the annual applications for plant patents had increased in number but fallen to a 60 percent share of the total rights claimed. During this recent period, utility patents were as popular as plant variety protection certificates, and ornamentals made up a large but much reduced share of the total (52 percent). Individual innovators accounted for only 12 percent of the rights, whereas the corporate sector sought the dominant share of varietal rights (82 percent in 2004-2008). These intellectual property markets are complex, with corporations, universities and other agencies seeking different types of rights for different crops.plant patents, plant variety protection, utility patents, Agricultural and Food Policy, Crop Production/Industries, Environmental Economics and Policy, Resource /Energy Economics and Policy, Q16, Q18, O32, O34,

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