1,720,956 research outputs found
HUBUNGAN KUADRATIK JUMLAH DAN LETAK SEED DENGAN DISTRIBUSI DOSIS I-125 BRACHYSEED PADA MODEL KANKER PROSTAT MENGGUNAKAN DOSE VOLUME HISTOGRAM
No full textThe aim of this study is to assess the variation effect of the amount and the location of seed  I-125 in dose absorbing behaviors of the target (prostate) and other organs at risk (bladder and rectum). The phantom model is 8x8x8 cm3 cube-shaped with 0.2x0.2x0.2 cm3 voxel size.   I-125 seeds are implanted into the prostate with variation of spacing and number. DOSXYZnrc is implemented to calculate doses.  To analyze dose distribution of each organ, the Dose Volume Histogram (DVH) program is developed using MATLAB. From this investigation, the effect of location of seeds influences the dose volume histogram for all organs. For example, the volume of prostate that receives 20% or more of the maximum dose (VB20) decrease around 40%, if the spacing among the seeds increases from 0.5 cm to 1 cm. But the spacing of seeds has insignificance effect on VB100 for each organ. This fenomena also appears if the number of seeds is changed. The spacing - and the number of seed have important role in the dose distribution not only on the target but also on the organs at risk. Therefore, the optimization for both parameters is needed.Key words: Brachytherapy, Prostate, DOSXYZnrc, DV
Sifat Keherediteran Aljabar Lintasan dan Aljabar Lintasan Leavitt
No full textMakalah ini mengkaji dua topik yakni sifat keherediteran aljabar lintasan dan sifat keherediteran aljabar lintasan Leavitt. Sifat herediter sangat berguna dalam mengkaji modul projektif atas aljabar. Pada topik pertama diperoleh hasil bahwa aljabar lintasan bersifat herediter jika graf hingga, terhubung dan asiklik. Pada topik kedua diperoleh hasil bahwa aljabar lintasan Leaviit bersifat herediter jika graf hingga
ANALISIS FAKTOR YANG MEMPENGARUHI KESEHATAN REPRODUKSI IBU MENIKAH DI USIA REMAJA
No full textThis study aims to determine factors influence teenage mothers were married to the mother's reproductive health disorders in Jorong Bukik Apik Nagari Padang Tarok Kabupaten Agam of West Sumatra in 2012. The research method used in population study by the survey technique, where the number of teenage mothers who were married at age totaled 35 peopleBased on the results of the study found that factors influencing maternal age married mother Adolescent reproductive health is the lack of knowledge of the signs of pregnancy, pregnant women are at risk, as well as the lack of check gestation. Mother's knowledge about reproductive health will be improved by providing intensive counseling to these mothers.Key words: reproductive health, Jorong Bukik Api
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
No full textWe 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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