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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
(30(3):219-226)Genetical and breeding studies in the crosses between indicu x sinica rices - I. Path coefficient analysis of single-plant grain yield
No full text本研究以秈×稉與稉×秈等兩個雜交組合之F2集團為材料，探討秈稉稻雜交後代產量構成要素對單株穀產量變異之決定程度，結果發現：兩種組合中，單株穀產量與產量構成要素間均呈極顯著之正相關。路徑係數分析結果則顯示兩種組合中，產量構成要素對產量變異決定程度的大小順序並不一致。在秈×稉組合中，對單株穀產量變異最具影響力之性狀為穗數，其次為平均一穗穎花數，再次為結實百分率，終為千粒重；稉×秈組合中，產量構成要素對單株穀產量變異之決定程度的大小則依次分別為結實百分率、穗數、平均一穗穎花數、千粒重。文中曾對此等結果加以討論，並建議育種家從事秈×稉或稉×秈雜交育種時，穗數及平均一穗穎花數為譜系汰選拔時之兩個重要選拔指標。The prestent studies are to compare the effect of four yield components on the variability of single-plant grain yield of rice in indica x sinica and sinica x indica crosses by the technique of path coefficient analysis.
The significant positive correlations between four yield components and single-grain yield were observed in both crosses. From the path coefficient analysis, it was observed that the order and degree of effect of the respective yield component on the grain yield differed from cross combination The order of effect on grain yield was found to be number of panicles, mean number of spikelets, percent seed setting and 1,000 grain weight in the indica x sinica cross; and percent seed setting, number of panicles, mean number of spikelets and 1,000 grain weight in the sinica x indica cross.
It was suggeted that in rice breeding, number of panicles and mean number of spikelets should be used as the main selection criteria for selecting grain yield from either indica x sinica or sinica x indica cross
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
(14(4):1-10)FURTHER STUDIES ON THE INHERITANCE OF RESISTANCE TO LEAF AND NECK BLAST DISEASES IN RICE－GENIC ANALYSIS IN RICE VI－
No full text利用蓬萊、在來及突變稻等 44 品種為親本作雜交，獲 32 個雜交組台，將其 Fl F2 及其双親，同時種植於毫中縣東勢，在自然環境下任其發病。葉稻熱病之發生程度，根據葉病斑面積率，然後換算為罹病指數，穗頸稻熱病之發生程度以罹病百分率表示之。
部分材料在臺北本所玻璃室內用噴撒法將胞子接種於幼苗上，並調查其病斑，另一試驗採用葉鞘接種法接種，並在顯微鏡下觀察細胞內之菌絲伸長度，以定感病之程度。
試驗結果，抗病 × 抗病之 Fl 及 F2 均為抗病，抗病 × 感病或感病 × 抗病之 Fl 為抗病，表示抗病性為顯性，在 F2 抗病及感病，則分離為 3 : 1 或 9 : 7 ，表示抗病性至少受二對之遺傳因子所支配。穗頸稻熱病之抵抗性在 F2抗病與感病之分離比有 3 : 1，9 : 7，27 : 37等三種，表示穗頸稻熱病之遺傳因子至少有三對。筆者等認為第 1 及第 2 抗病遣傳因子Pi1 Pi2 支配葉稻熱病，而另外加上第 3 因子Pi3支配穗頸稻熱病之抗性。求葉稻熱病與穗頸稻熱病抵抗性之相關結果，在本研究之範圍內大部分之情形下兩者之間有正相關關係。在自然發病狀態下抗病因子Pi與無葉舌因子lg有連鎖關係，但在玻璃室人工接種之狀態下則無此種連鎖關係發現，不同生理小種及不同環境，可能為其結果不同之原因。本研究中Pi與花青素著色因子 C 及 A 光穎因子 Ih ，芒因子 An糯性因子wx，穗枝彎曲因子Ur之間無連鎖關係發現。
F2 plants of 32 crosses together with their parents were planted in the field under the condition of natural infestion at Tunshu, Taichung Prefecture. Percentage of diseased leaf area was examined to determine the degree of disease infection. For artificially inoculated seedlings under the green house condition, disease lesion types were observed.
The F2s of crosses between two resistant strains were all resistant while those of between resistant and susceptible showed 3:1 and 9:7 ratios. This indicates that at least two genes are responsible for leaf blast resistance. For neck blast resistance, in the cross between resistant and susceptible strains 3:1, 9:7 and 27:37 ratios were found showing that three genes are concerned.
Positive correlation between leaf and neck blast resistances was found. It was assumed that genes Pi1 and Pi2 might control neck blast as well and the third gene Pi3 might work as a modifier.
Linkage between Pi and liguleless gene lg was found when the experiment was conducted under the natural infection condition; but no such linkage relation was recognized when the materials were artificially inoculated under the controlled glass-house condition. The course of such difference might be due to the different environmental conditions as well as different physiological races of blast fungus involved at that time.
Further, no linkage was found between genes of Pi and C, A, lh, An as well as wx
(34(4):402-409)A Pereliminary Report on Developing Larger-seed Isogenic Line of Rice Variety, Tainung No. 67
No full text以糙米百粒重2.0g 左右之臺農67 號及3.5g 左右之Pegonil 兩品種為親本，其正反交之兩Fl 後代再與輪迴親本臺農67 號連續回交，期育成臺農67 號大粒isogenic 系統。本文即在初步報導此育成過程中之若干結果。Fl數據顯示糙米百粒重無正反交之差異。TNG67 / Pegonil / TNG 67 集團糙米百粒重平均為3.09 g.，集團常態分布於兩親本間；反之，Pegonil / TNG672 之糙米百粒重僅達2.29g ，集團分布集中且靠近輕百粒重親本臺農67 號。穗數、一穗穎花數及單株糙米產量等重要性狀TNG 67 / Pegonil / TNG67 集團者均較Pegonil / TNG672集團者為低。綜合考慮此等初步結果認為育成臺農67 號大粒isogenic 系統以繼續臺農67 號為母本之後代集團之選株連續回交輪迴親臺農67 號較有希望。
The present experiment is aimed to develop the larger-seed isogenic line of Tainung No. 67 (TNG 67), which is now the most popular variety in Taiwan. In the Fl crosses between TNG 67 (2. 0g/100-brown-rice) and Pegonil (3.5g/100-brown-rice), no significant difference was observed in sees size between the reciprocal crosses. In the BCl generation of TNG 67/Pegonil/TNG 67, seed size distributed normally with a mean value of 3.09 g/l00-brown-rice. However, in the population of Pegonil/TNG 672, seed size distributed skewly toward TNG 67 with a smaller mean value of 2.29 g/l00-brown-rice. Characters such as panicle number per hill, spikelet number per panicle and bro wnrice yield per plant in the population of TNG 67/Pegonil/TNG 67 were all found to be smaller than those in the population of Pegonil/TNG 672.
From this preliminary study, it is conclued that developing a larger-seed isogenic line of Tainung No. 67 by repeated back cross and using TNG 67 as the recurrent parent and Pegonil as the donor parent should be promising
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
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