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(20(2):68-75)FIELD REACTIONS OF RICE VARIETIES SCREENED FOR THEIR RESISTANCE TO NILAPARVATA LUGENS AND NEPHOTETTIX CINCTICEPS IN INSECTARY
No full text本試驗之目的，在於核察經室內選山之抗褐飛蝨及黑尾葉蟬水稻品種在田間自然狀態下對上述兩種害蟲之抵抗性狀。抗蟲品種，尤其是國外引入品種，在本省自然環境之適應性和其農藝性狀，以及對一般病蟲害之感受性一併觀察，俾供育種取材之參考。試驗結果可歸納為如下數點：
1. 經室內以候栽秧苗，人工接種方法檢定選出之抗褐飛蝨品種（系），在田間亦顯示其高度之抵抗性。當褐飛蝨棲羣密度隨水稻感蟲品種生長成熟而迅速增高時，在抗蟲品種（系）之棲覃密度則呈緩慢之增進或一直保持很低，因而抗蟲品種（系）在感蟲品種受害極嚴重或枯萎時，其受害程度仍很輕微。此種結果顯示水稻對褐飛蝨為害之感受情形，秧苗期與成熟期大體一致。
2. 黑尾葉蟬善於飛躍，而發生密度很低，因小區面積過於狹小，影響調查準確性，其結果是否如褐飛蝨同樣明顯，有待證實。
3. 由國外引入之抗蟲品種一般植株較高，容易倒伏，其生育期因品種對日照長短之反應，差異很大，如 Mudgo , ASD7，……及DM 27 等品種之抽穗期與臺中在來1號相同，但如Ptb 19, Ptb 21, Balamawee及Peta等品種則較一般品種長約30至40天左右。引入品種除少數外，大部份品種米粒呈紅色，米質較差。但其稻穗則大部顯較本省者為長而且重。
4. 除褐飛蝨外，其他病蟲害發生密度很低。所有供試品種早期均遭稻黑稈蠅輕微的為害，中後期則大部遭受胡麻葉枯病及紋枯病侵害。其中受紋枯病為害較重之品種有IR 1154, DK 1，臺南5號、DNJ 27及高雄136等。
5. 本分所以臺中在來1號 × （C230 × Mudgo）雜交後代之某些系統如C-59-2-5, C-59-2-6及C-59-2-4等，在本試驗中亦顯示其抗蟲優越特性，且蠢植株性狀矮小叢生，為極具希望發展為抗蟲豐產之水稻品種。
Fifty rice varieties (or lines) known their reactions to brown planthopper (Nilaparvata lugens) or rice green leafhopper (Nephotettix cincticeps) from insectary tests were determined for their reactions in field conditions from August to December 1970. The adaptability of exotic resctions in field conditions of this island, agronomic characteristics and the reactions of tested rice plants to the orther insect and disease pests were also observed in this test. Some essential results are summarized as follows:
1. The rice varieties (or lines) screened for their resistance to brown planthopper in the insectary with tray-planting, artifical infestation method generally were also shown their outstanding resistant characterstics in the field conditions, While the density of brown planthopper population were rapid increase with the maturity of rice plant of susceptible varieties it either remained very low or increased very slow in the rice plant of resistant ones (Table 1.). As the result of that state, there were no visible damage or barely noticeable symptoms of damage in the rice plant of resistant varicties when the susceptible varieties were heavily damaged or hopperburned. However, some classified as susceptible varieties in the insectary test, such as peta, Lung-yu and C-59-2-4, were damaged moderately in the field conditions. It might reveal that the plant of those varieties had certain degree of tolerance to the insect attack or the susceptibility of those varieties in seedling stage were different from that in the matural stage. The reactions of tested varieties to the rice green leafhopper were not noticeable because of the population of the species was very low during the observation period.
2. With a few exception, the majority of exotic rice varieties tested had more panicle numbers, loager culm, longer and weightier grain panicle and later maturity (longer vegetative growth phase) than the local varieties, and the colour of kernel of these varieties were red. Although none of these exotic varieties tested could be recommended for commercial planting in Taiwan because of either for their photosensitive character, low yield ability or poor quality, however, there were many desirable characters could be introduced into Taiwanese varieties through hybridization breeding, such as panicle numbers, length and weight of panicles and especially on their hoppers resistant characters.
3. During observation period, except brown pranthopper, the insect pests population were low and the damage on each tested varieties were not different remarkably. However, the plants generally infested by brownspot (Cochlioblous miyabeanus) and sheath blight (Corticium sasakii) diseases in later stage. The damage of brown spot disease on tested varieties were not different remarkably but some varieties, such as IR 1154, DK 1, DNJ 27, Tainan 5 and Kaoshiung 136 etc. were infested with sheath blight severely.
4. Among 10 hybrid lines selected from T(N)1X (C230 X Mudgo) observed in this tests, C-59-2-5, C-59-2-6 and C-59-2-4 exhabited their outstanding characteristics in resistance to brown planthopper as their parent variety, mudgo. Besides, these hybrid lines had desirable plant type short stature, stiff straw, short and upright leaves. The yield-potencial of these promising lines are now under observation in this Station
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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