1,720,968 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Pengaruh Pemberian Ekstrak Etanol Buah Sirsak (Annona muricata L.) Pada Kadar Kolesterol Low Density Lipoprotein (LDL) Tikus Putih (Rattus norvegicus) Hiperkolesterolemia
Full text linkThe cause of Coronary heart disease is an increase caused due to increased cholesterol levels in the blood, so there is a risk of blockage in the blood vessels (atherosclerosis). LDL cholesterol which is abundant in the bloodstream will accumulate in the arteries and potentially cause blockages. Ethanol extract of soursop fruit (Annona Muricata L.) contains antioxidant compounds such as alkaloids, tannins, saponins, flavonoids and polyphenols that are needed to increase endurance and prevent various diseases that enter the body. Research has been conducted to determine the effect of soursop fruit ethanol extract (Annona Muricata L.) on Low Density Lipoprotein (LDL) cholesterol levels white Rat (Rattus Norvegicus) hipercolesterolemia. This research was conducted experimentally with 10 male white rats (Rattus Novergicus, L.), aged 2-3 months with a weight of 150-200 g, which were divided into 2 groups: the control group and the treatment group. Hypercholesterolemia induction is done by giving high fat diet foods for 7 days. Soursop fruit ethanol extract was given in a sonde to the treatment group at a dose of 3.6 mg / 200gBB / day for 14 days and measurements of LDL cholesterol levels were carried out on days 16 and 30 by the CHOD-PAP examination method. Data were analyzed by Paired t-test. The results showed LDL cholesterol levels in the treatment group showed that as many as 5 mice decreased, the mean decreased by 32.49 mg / dl while in the control group as many as 2 mice decreased, the mean decreased by 0.76 mg / dl. There was a significant difference (p <0.05) in changes in LDL cholesterol levels in the treatment group. Soursop fruit etanol extract with 3.6 mg / 200gBB / day for 14 days can reduce LDL cholesterol levels in hypercholesterolemia rats.Penyebab Penyakit jantung koroner (PJK) adalah peningkatan kadar kolesterol di dalam darah, sehingga berisiko terjadi penyumbatan pada pembuluh darah (aterosklerosis). Kolesterol LDL yang banyak terdapat di dalam aliran darah akan tertimbun di dalam pembuluh darah arteri dan berpotensi mengakibatkan penyumbatan. Ekstrak buah sirsak mengandung senyawa antioksidan seperti alkaloid, tannin, saponin, flavonoid dan polifenol yang sangat dibutuhkan untuk meningkatkan daya tahan tubuh dan mencegah berbagai penyakit yang masuk ke dalam tubuh. Telah dilakukan penelitian untuk mengetahui pengaruh pemberian ekstrak etanol buah Sirsak (Annona Muricata L.) pada Kolesterol Low Density Lipoprotein (LDL) tikus putih (Rattus Norvegicus) hiperkolesterolemia. Penelitian ini dilakukan secara eksperimental dengan 10 ekor tikus putih jantan (Rattus Novergicus, L.), berumur 2-3 bulan dengan berat 150-200 g, yang dibagi dalam 2 kelompok yaitu kelompok kontrol dan kelompok perlakuan. Induksi hiperkolesterolemia dilakukan dengan pemberian makanan diet lemak tinggi selama 7 hari. Ekstrak etanol buah sirsak diberikan secara sonde pada kelompok perlakuan dengan dosis 3,6 mg/200gBB/hari selama 14 hari dan pengukuran kadar kolesterol LDL dilakukan pada hari ke 16 dan 30 dengan metode pemeriksaan CHOD-PAP. Data dianalisis dengan uji Paired t-test. Hasil penelitian menunjukkan kadar kolesterol LDL pada kelompok perlakuan menunjukkan sebanyak 5 tikus mengalami penurunan, rerata penurunan sebesar 32,49 mg/dl sedangkan pada kelompok kontrol sebanyak 2 tikus mengalami penurunan, rerata penurunan sebesar 0,76 mg/dl. Ada perbedaan yang signifikan (p<0.05) pada perubahan kadar kolesterol LDL pada kelompok perlakuan. Pemberian ekstrak buah sirsak dengan 3,6 mg/200gBB/hari selama 14 hari dapat menurunkan kadar kolesterol LDL tikus hiperkolesterolemia
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Treatment Outcome of Pulmonary Tuberculosis Patients in Public Health Center
Full text linkBackground: Tuberculosis (TB) remains a contagious disease with high mortality rates worldwide, especially in developing countries like Indonesia, which is the second-largest contributor to TB cases after India. Objective: Analysis of factors associated with treatment outcome in pulmonary TB patients in public health centers at Gunungkidul Regency, D.I. Yogyakarta. Methods: An observational analytic study with a cross-sectional design was conducted on pulmonary TB patients in 30 public health centers, Gunungkidul Regency in 2020-2021. Inclusion criteria were age ≥15 years, and exclusion criteria were extrapulmonary TB patients and those who loss to follow-up the end of treatment. Secondary data were obtained from the Tuberculosis Information System TB 03 (SITB) of the Gunungkidul District Health Office. The research data were analyzed using chi-square test (bivariate) and logistic regression (multivariate). Results: A total of 272 pulmonary TB patients in 2020-2021, with the majority aged 45-54 years (22.8%), male (57%), new treatment category (96.3%), BTA/TCM positive (58.1%), had a history of DM (8.1%), and HIV positive status (0.8%). Logistic regression analysis showed that age (p<0.001) and bacteriological examination results (p=0.012) were significantly associated with treatment outcomes. However, gender, history of TB treatment, history of DM, and HIV status were not associated with treatment success. Conclusion: Age and bacteriological examination results (AFB/Xpert MTB) at the start of treatment contributed to the treatment success rate in pulmonary TB patients
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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