1,720,955 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
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
The Effect of Waste Rock on the Fertilizer Characteristics of Solid Farm Fertilizer
No full textLaboratuvar koşullarında saksılarda üç tekerrürlü olarak yürütülen bu çalışmada fermente olmamış katı çiftlik gübresine farklı özelliklere sahip üç kayacın kontrol % 1, % 5 ve % 10 dozu uygulanmıştır. Homojen uygulama için kayaçlar öğütülmüştür. Orijinal nemiyle katı çiftlik gübresine ilave edilen kayaçlar, iyice karıştırıldıktan sonra ilk hafta günde iki defa daha sonraki günlerde 2 günde bir defa olacak şekilde karıştırılarak oksijenli fermantasyona tabi tutulmuştur. Fermantasyona tabi tutulan katı çiftlik gübresinden ikinci ve altmışıncı günlerde örnekler alınarak kayaçların suda çözünebilir kalsiyum (Ca), magnezyum (Mg), potasyum (K), sodyum (Na), fosfor (P), demir (Fe), ve mangan (Mn) elementleri içeriğine etkisi belirlenmiştir. Araştırma sonuçlarına göre fermente olmamış katı taze çiftlik gübresine % 1, % 5 ve % 10 oranında ilave edilen farklı üç kayacın katı çiftlik gübresinde suda çözünebilir kalsiyum, fosfor ve mangan elementleri miktarı üzerine etkisi; zaman, kayaç dozu ve zaman x kayaç dozu interaksiyonu p <0.01 düzeyinde önemli bulunmuştur. Uygulamaların sodyum elementi üzerine etkisi sadece zaman açısından p <0.01 düzeyinde önemli bulunurken, suda çözünebilir magnezyum, potasyum ve demir elementine etkisi istatistiksel açıdan önemli çıkmamıştır. Katı çiftlik gübresinde suda çözünebilir en yüksek kalsiyum miktarı altmışıncı günde ikinci ve üçüncü kayacın % 1’lik uygulamalarında (650,96, mg kg-1 , 643,73 mg kg-1 ), en yüksek fosfor miktarı altmışıncı günde üçüncü kayacın %1’lik uygulamasında (302,47 mg kg-1 ) ve en yüksek mangan miktarı ise ikinci gün üçüncü kayacın % 10’luk uygulamasında (3,08 mg kg-1 ) elde edilmiştir.In this study which was carried out under laboratory conditions in three frequency series, control 1%, 5% and 10% dose of three rocks that had different characteristics were applied to unfermented solid farm fertilizer. For homogenous application, rocks were added into the solid farm fertilizer with their original moisture after they had been grounded, and having been stirred thoroughly, they were exposed to oxygen fermentation by being stirred twice in a day during the first week and once in two days in the subsequent days. Samples from the fermented solid farm fertilizer were taken on the second and sixtieth days and their effect on calcium (Ca), magnesium (Mg), potassium (K), sodium (Na), phosphorous (P), iron (Fe) and manganese (Mn) elements, which are water-soluble, were identified. According to the research results, it was found that the effect of the three different rocks which had been added into unfermented fresh solid farm fertilizer at 1 %, 5 % and 10 % rates on the amount of water-soluble calcium, phosphorous and manganese elements in solid farm fertilizer; time, rock dosage and time x rock dosage was significant at p <0.01. The effect of applications on sodium was significant at p <0.01 level only in terms of time whereas it was statistically insignificant in terms of water-soluble magnesium, potassium and iron. In the solid farm fertilizer, the highest amount of water-soluble calcium was obtained in the 1% application of the first and third rocks on the sixtieth day (650,96, mg kg-1 , 643,73 mg kg-1 ), whereas the highest amount of phosphorous was obtained in the 1 % application of the third rock on the sixtieth day (302,47 mg kg-1 ) and the highest manganese amount was obtained in the 10 % application of the third rock on the second day (3,08 mg kg-1
The Effect of Traditional and Analysis-Based Chemical Fertilizer Application on Corn Yield and the Content of Plant Nutrient Elements in the Leaf
No full textThis study is conducted in Muğla Dalaman Agricultural Management Directorate (TİGEM) in 72MAY80 grain and silage maize in the trial area according to purely random trial the randomized complete block design in 3 replications in 2016. The amount of fertilizer is obtained by substracting elements determined by soil analysis from the amount of plant nutrients required for corn yield in -1 in 950 kg. (-1 in 41.5 kg urea). The aim of this research is to determine whether fertilizer application at 4 different rates including the reduction of fertilizer application required for corn yield -1 in 950 kg. by 40% (-1 in 24.95 kg urea) and increasing it by 40% (-1 in 58.1 kg urea) and manufacturer application (-1 in 60 kg urea, -1 in 32,3 kg, 15-15-15 and -1 in 14 kg. KNO3) has an effect on the yield of corn plant and the element content of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), copper (Cu), zinc (Zn), manganese (Mn), boron (B) and molybdenum (Mo) in the leaf. The urea applied to the soil from the base, 15-15-15, fertilizers are given to the band with the sowing seeder. The urea fertilizer used as a top fertilizer in trial plots and KNO3 fertilizer has been applied with drip irrigation system at 3 different times. According to the research results, the effect of applying fertilizer to the soil according to -1 in 950 kg. corn yield, 40% reductions and 40% increases in fertilizer application, and manufacturer application on the yield of corn and the concentration rate of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), copper (Cu), zinc (Zn), manganese (Mn), boron (B) and molybdenum (Mo) elements in the leaf is found to be statistically significant (p<0.01). The highest yield in corn plant is achieved in the application of manufacturer (-1 in 1.367,0 kg) and the application of increasing the amount of fertilizer by 40% (-1 in 1357.0 kg), fertilizer application according to -1 in 950 kg corn yield (-1 in 1225.3 kg), respectively, whereas, the lowest yield is achieved in the application of reducing the amount of fertilizer by 40% (-1 in 991.0 kg). Moreover, the total amount of fertilizer used in trial plots is calculated according to the fertilizer costs in 2016 and the price spent on fertilizer is determined in Turkish Liras (TL) and this price is divided by the 2016 corn kg price and subtracting the amount of corn obtained from the yield, and net yield is obtained excluding the fertilizer cost
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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