1,720,975 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
Osteoconduction and osteoinduction of antibacterial iodine-supported implants
Get PDF当施設で開発した抗菌インプラントであるヨード担持チタンの骨伝導能について、動物実験を用いて研究を行った。
イヌの腰椎椎体に刺入したチタン製、陽極酸化処理のみ施行したチタン製、ヨード担持チタン製のscrewについて、引き抜き強度試験と組織学的検討を行った。引き抜き試験、組織学的検討いずれにおいても各群間に有意な差は認めなかった。この結果は、ヨード担持チタンがチタンの優れた骨伝導を妨げることなく抗菌効果を持ち得ることを示唆するものであった。The antibacterial iodine-supported titanium implants has been developed in our institute and have been observed in a clinical trial. We conducted animal experiment about an osteoconductivity of the iodine-supported titanium.
A biomechanical testing of pull out strength and a histological examination of the 3 kinds of screws inserted to lumbar vertebral bodies of dogs were investigated. They were titanium screws, anodically-oxidized titanium screws, and iodine-supported titanium screws. In the both the pull out strength and histological osteoconduction, no significant differences were observed between any two of 3 types of screws. The osteoconduction of iodine-supported titanium was equivalent to that of titanium.研究課題/領域番号:25861300, 研究期間(年度):2013-04-01 - 2015-03-31出典：研究課題「ヨード担持チタン製抗菌インプラントの骨伝導能・骨誘導能の解析」課題番号25861300
（KAKEN：科学研究費助成事業データベース（国立情報学研究所））
（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-25861300/25861300seika/）を加工して作成金沢大学附属病院リハビリテーション部research repor
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
Mechanical properties of the irradiated bone
Get PDF放射線照射による椎体骨の脆弱化を解明するために、放射線照射したラット脊椎骨に対して力学的試験と構造解析を行った。小動物放射線照射装置を用いてラットの腰椎に20Gy単回の外照射を行った。照射後に屠殺し摘出した椎体の圧縮負荷試験（骨強度試験）とμCTによる画像解析を行った。骨強度は照射後群が非照射群と比較して有意に低下していた。μCTの結果、非照射群に比べ照射群では骨梁連結性低下を認め立体構造が粗であった。骨密度はほとんど変化していなかった。海綿骨の微細構造の低下によって骨密度の変化なしに骨強度の低下が示されたことから、放射線の脊椎骨に与える影響は海綿骨の立体構造の変化であることが示唆された。To examine the fragility of irradiated vertebral bone, we performed a mechanical stress tests and structure analysis by μCT on irradiated rat vertebrae. Rats received a single external irradiation of 20 Gy on the lumbar vertebra using a small animal irradiation apparatus. After irradiation, they were sacrificed the irradiated vertebrae were excised. We performed the vertebral body compression load test and μCT analyses of the vertebrae. Bone strength was significantly lower in the irradiated group than in the non-irradiated group. In μCT analyses, reduced trabecular connectivity were observed in the irradiated group as compared with the non-irradiated group. The three-dimensional structure was coarse in the irradiated group. However, bone mineral densities of the 2 group were almost the same. The results of this study indivated that the microstructure changes of cancellous bone in the radiated vertebrae led to a decrease in bone strength without a change in bone density.研究課題/領域番号:15K21016, 研究期間(年度):2015-04-01 - 2018-03-31出典：研究課題「放射線照射が脊椎の骨強度に与える影響: 特に骨質に着目して」課題番号15K21016
（KAKEN：科学研究費助成事業データベース（国立情報学研究所））
（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-15K21016/15K21016seika/）を加工して作成金沢大学附属病院リハビリテーション部research repor
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
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