1,721,046 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
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
1st report : A range of serum IgE value in healthy humans (STUDIES ON SERUM IgE LEVEL IN HEALTHY AND RESPIRATORY DISEASES)
No full textこの論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。1. 健康人215例および気管支喘息患者171例の血清IgEについてradio immuno sorbent test (RIST)を用いて測定し, 血清IgEの正常値を決定するための検討を行なった。2. 血清IgEの測定において著者の使用したRISTは1, 000∿40 IU/mlの範囲内で良好な再現性を認めた。また正常人については, 15才∿89才では加令, 性別によるIgE値の変動を認めず, 食事の影響や日内変動も認められなかった。また凍結融解操作, 1年間の凍結保存, ロット番号の異なるキットの使用によるIgE値の変化は認められず, 常に安定した成績が御られた。3. 健康人215例の血清IgE値を算術平均すると312 IU/mlを得たが, この値はヒストグラムの最頻値とは一致しなかった。測定したIgE値を対数変換して得られた値を用いた幾何平均では187 IU/mlであり最頻値と一致した。この成績より本研究における血清IgE平均値はすべて幾何平均を用いた。健康人について得られたLog IgE値を正規確率紙にプロットして作成した累積度数曲線より, 健康人の中に血清IgE値に関する複数の属性集団が認められた。4. 健康者群(H)中, 正常者(N)120例, アトピー性素因を有する者(A)51例における血清IgEの平均値はそれぞれ187, 485 IU/mlであり, 正規確率による検定ではLog IgE値がそれぞれ正規分布を示す事が判明した。N群とA群の比較ではp<0.0001でA群が高値であった。5. 3.で得た累積度数曲線よりN群とA群の境界域が251 IU/ml∿398 IU/mlに存在するという事実と, N群の分布の信頼限界を10%とした時に得られる分布域の上限が303 IU/ml(境界域内)であったことより, 正常範囲の上限を303 IU/mlとし, また同群のLog IgE値が正規分布しているという理由でその下限を43 IU/mlとした。6. 171例の気管支喘息患者における血清IgEの平均値は538 IU/mlであった。この群よりアトピー性喘息(AAS)89例および非アトピー性喘息(NAS)32例を撰んで血清IgEの平均値を求めた結果それぞれ791, 175 IU/mlであった。AASとNASを比較するとp<0.0001でAASが有意に高値であった。AASでは血清IgEが303 IU/ml以上の高値であった症例が80.9%あったが, 一方, NASでは81.2%が正常範囲に含まれ, 著者の定めた正常範囲はアトピー性喘息患者の診断上有用であると思われた。1) Serum IgE values of 215 healthy persons were measured in oder to determine a range of normal IgE level by using radio immuno sorbent test (RIST). 2) Good reproducibility of serum IgE value was found by this method in the range between 40-1, 000 IU/ml. Fluctuations of serum IgE values according to age, sex, diet and sampling time were very little. Changes of the values were not found after five times freezing and thawing, or after deep-freezing for one year. 3) The geometric mean obtained from serum IgE values of 215 healthy persons was 187 IU/ml. This group was statistically devided into two groups : One was non-atopic group (N) and another was atopic group (A). The mean values of serum IgE were 114 and 485 IU/ml. respectively. The former is significantly lower than the latter (p<0.0001). 4) The range of serum IgE value in N group was determined as 43-303 IU/ml on the base of the results obtained from 120 non-atopic healthy persons by using statistical procedure. 5) It was suggested that the normal range of serum IgE value was clinically useful in oder to make diagnosis of atopic asthma, because 72 cases (80.9%) among 89 cases of atopic asthma showed higher serum IgE value than 303 IU/ml
2nd report : Serum IgE values in respiratory diseases (STUDIES ON SERUM IgE LEVEL IN HEALTHY AND RESPIRATORY DISEASES)
No full textこの論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。1. 気管支喘息, 気管支・肺感染症, 肺結核症, サルコイドージス, 塵肺, 肺気腫, 自然気胸, ベリリウム肺, 肺癌の患者についてradio immuno sorbent test (RIST)による血清IgE値の測定を行ない, 健康者群のIgE値と比較した。その結果, アトピー性気管支喘息および肺癌の両群ではIgE平均値がそれぞれ791 IU/ml, 349 IU/mlと健康者群のIgE値187 IU/mlと比較して明らかに高値であった。また塵肺群ではIgE平均値は162 IU/mlと対照に比して有意差を認めなかったが, その分布域は24 IU/ml∿1.078 IU/mlと対照群の約2倍の広範囲にわたって分布していた。その他の疾患群についてはIgE平均値についても, その分布域についても対照である健康者群との間に著明な差異を認めなかった。2. 肺癌患者の血清IgE値はその進展度による差異を認めなかった。組織型に関しては類表皮癌ではIgE値445 IU/mlで未分化癌のIgE値265 IU/mlと比較して0.05<p<0.1で有異差を認めた。3. 気管支・肺感染症群。肺感染症群塵肺群のうち28例についてpaper disc radio immunosorbent test (PRIST)による血清IgE値の測定を行なってRIST値との相関性について検討した。その結果, 両者の測定値は対照とした健康者群および気管支喘息群の場合と同様良好な相関性が認められた。4. アトピー性喘息患者の特異的減感作療法開始後, 1年以上経過を観察した症例について, 血清IgE値の変動と減感作療法の効果との関連性について検討した。その結果減感作療法有効例10例については全例, 血清IgE値の著明な下降を認めたが, 無効例8例では全例, IgE値の下降を認めないかあるいはごくわずかな下降が認められたに過ぎなかった。これらの症例におけるLog IgE値の変動幅は±0.15以内であった。有効例では全例に減感作療法開始後3.6∿7.9ヶ月(平均6.2±1.5ヶ月)以内にLog IgE値0.15以上の下降が認められた。1) Serum IgE values of various respiratory diseases were measured by radio immuno sorbent test (RIST) in oder to compare with healthy control. 2) The geometric mean value of serum IgE obtained from each group of respiratory diseases was as follows; broncho-pulmonary infections (40 cases); 223 IU/ml, pulmonary tuberclosis 135 cases); 218 IU/ml, sarcoidosis (43 cases); 184 IU/ml, chronic berylliosis (5 cases); 234 IU/ml, pneumoconiosis (80 cases); 162 IU/ml, spontaneous pneumothrax (12 cases); 185 IU/ml, emphysema (16 cases); 232 IU/ml, atopic asthma (89 cases); 791 IU/ml, non-atopic asthma (32 cases); 175 IU/ml, pulmonary carcinoma (72 cases); 349 IU/ml and healthy control (215 cases); 187 IU/ml. Both mean values of serum IgE of atopic asthma and pulmonary carcinoma showed significantly higher than that of the healthy control. 3) Some of the patients, who were not atopic as far as I examined, showed apparently increased values of serum IgE. The reason was studied by paper disc radio immuno sorbent test (PRIST) which was a different system of IgE determination. The results obtained by PRIST showed a good correlation with those obtained by RIST. It is concluded that the increased values of serum IgE in these patients were not caused by "inhibitor" which was supposed by Dr. Jacobs. The cause might be attributable to abnormal regulation of IgE production which was caused by abnormality of both B-cell and T-cell system. 4) The changes of serum IgE levels of 18 cases with atopic asthma, who were all received specific-desensitization therapy, were observed the results for more than one year. "Sloping down" of serum IgE level was found in 10 cases of atopic asthma who were apparently improved by the specific-desensitization therapy. The angle index of the slope (θ) was statistically determined as -0.019 ≥θ≥-0.042. This result suggests that a slope of serum IgE value within the range predicts the good result, which will be obtained by the desensitization treatm
Solovay還元を用いた第一不完全性定理の証明 (証明論とその周辺)
Get PDFゲーデルの第一不完全性定理の今日最もよく知られた証明方法は対角化定理を用いて「自分自身は証明できない」という意味をもつとされるゲーデル文を構成する方法である. しかしこの定理は形式化された証明への深い理解が必要で非専門家にとってはわかりにくい. 本稿では解析的なアイディアに基づき, Chaitinの停止確率, Solovay還元などの概念を用いて同定理に別証明を与えた
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
- …
