1,721,022 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Microorganisms Obtained From The Synthetic Mushroom Compost I. The Isolation, Characterization and Utilization of Cellulolytic Bacteria in. the Synthetic Compost
No full text由於環境所限，無法收集馬廄材料栽培洋務，因而以人工方法調配，其主要材料來源為稻稈，植之經年，堪可媲美馬糞材料，但仍待改進之處尚多。洋務減產，堆肥調製未能臻善也為主要因素之一，是以堆肥製作良否，不但影響洋務產量而且尚能引起各種病蟲害的發生，故堆肥實為種植洋務最基本且重要的一項因子。實驗的目的是在尋求富於營養之洋菇栽培材料及分離優良品系之纖維素分解菌類，藉以促進堆肥材料之醱酵分解，求得適宜之代謝產物，提高堆肥養分並求節省堆製時間。本次實驗是在堆肥調製期中，分期採取含有織維素分解菌類之堆肥，携至室內，鏡檢，分離培養，再行純化，定性，而後反接種於纖維質類上鑑定其分解能力以及對洋菇菌絲發育上的比較測定，期以對於人工調製堆肥有所助益。
Proprietary composts or materials without horse manure have been available for many years. A formula for making compost from rice straw and standard fertilizers was developed by many workers. Several other synthetic composts are in fairly widespread use in some areas, these generally make use of materials not easily obtainable on Taiwan, The development of the short-composting process war carried out. It is most important to get rapid fermentation. This is done by having a stack with a loosely packed core which ensures aerobic compost. Meanwhile we put the isolated cellulolytic bacteria on the bed as an “activator”. These efforts have been so successful that it is now possible to prepare a good compost within less than two weeks of composting in the stack. We could even make commercial products for short-composting. This is the aim: produce a suitable compost without losses
Studies On Mushroom Nutrition 1. The chemical composition of rice-straw composts
No full text為期究明稻葉堆肥之化學成分及洋菇栽培期中各成分之變化情形以供調製洋菇堆肥之參考，玆就本所食用菇研究室所製：(1)現行一般堆積，(2)三角架堆積，(3)過熟老堆肥三種及材料稻葉分別測定其化學組成分，所得結果摘要如下：
1.稻葉堆肥之主要成分為半纖維素，纖維素，木素，蛋白質及灰分，而冷水熱水可溶物及乙醚，乙醇可溶物之含量均較少，其與稻藥相比則半纖維素，纖維素量減少而木素，蛋白質及灰分增加，且其增減之幅度頗大，而熱水可溶物稍增加外其他成分均示減少傾向。
2.現行一般堆積者，水分11.34%，灰分25.99%，pH6.5，C/N率22，乙醚可溶物0.987%，冷水可溶物4.27%，熱水可溶物1.73%，乙醇可溶物0.538%，半纖維素5.793%，纖維素15.821%，木素14.279%，蛋白質8.438%。
In order to understand the degradation of mushroom compost and to seek a suitable compost for mushroom cultivation, three types of stacking: (1) general stack, (2) triangle stack and (3) over-compost were selected for chemical analysis together with the raw material of rice-straw was served as control. The air dry materials were used for all analysis. The results are shown as follows.
(1) The major component of rice-straw compost consisted of hemicellulose, cellulose, lignin, protein and ash, although containing little fractions of water and ether soluble. In comparison with the raw material, the general stacking decreased in the contents of hemicellulose, cellulose, cold water soluble fraction, ether soluble fraction and alcohol soluble fraction, while increased in the contents of lignin, protein, hot water soluble fraction and ash.
(2) The general stacking consisted of moisture 11.34%, ash 25.99%, C/N ratio 22.5, ether soluble fraction 0.987%, cold water soluble fraction 4.27%, hot water soluble fraction 1.73%, alcohol soluble fraction 0.538%, hernicellulose 5.793%, cellulose 15.821%, lignin 14.279% and protein 8.438%. The pH of the compost was 6.5
Variations on the Author
Get PDF“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
Get PDFWe 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
Get PDFWe 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
- …
