1,720,972 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
Estimasi Simpanan Karbon Organik pada Ekosistem Mangrove di Desa Mojo, Kecamatan Ulujami, Pemalang: Estimation of Organic Carbon Stocks in The Mangrove Ecosystem in Mojo Village, Ulujami District, Pemalang
Full text linkEkosistem mangrove sebagai salah satu ekosistem pesisir memiliki peranan penting dalam mengurangi dampak perubahan iklim khususnya dalam penyerapan gas CO2. Hutan mangrove di Desa Mojo yang memiliki luasan terbesar di Kabupaten Pemalang tidak saja mengalami ancaman abrasi pantai, tetapi juga deforestasi untuk lahan tambak. Melihat fungsi ekologis mangrove yang tinggi dalam penanggulangan perubahan iklim, maka perlu dilakukan perhitungan estimasi simpanan karbon di ekosistem tersebut. Metode yang digunakan dalam penelitian ini adalah metode survey untuk menganalisis indeks ekologi dan estimasi serapan karbon pada biomassa dan sedimen mangrove. Indeks Nilai Penting menunjukkan bahwa jenis pohon mangrove Avicennia alba memiliki tingkat kerapatan dan penutupan yang tinggi dibandingkan tiga jenis mangrove lainnya yang ditemukan yaitu Sonneratia caseolaris, Avicennia marina, dan Rhizopora mucronata, Tingginya nilai kerapatan dan penutupan jenis ini menjadikan pohon Avicennia alba sebagai jenis mangrove yang memiliki estimasi kandungan karbon biomassa tertinggi. Estimasi simpanan karbon biomassa mangrove di lokasi penelitian adalah 21,55–144,22 ton C/ha, sedangkanestimasi simpanan karbon pada sedimen mangrove berkisar 98,45–181,06 ton C/ha. Estimasi total simpanan karbon di ekosistem mangrove Desa Mojo Pemalang berkisar 112,43 – 247,98 ton C/ha dengan rata-rata 155,13 ton C/ha.The mangrove ecosystem as a coastal ecosystem is important in reducing the impact of climate change, especially in absorbing CO2 gas. The mangrove forest in Mojo Village, which had the largest area in Pemalang Regency, was not only threatened by coastal erosion but also faced deforestation for shrimp pond development. Considering the high ecological function of mangroves in climate change mitigation, it was essential to calculate carbon storage estimates in this ecosystem. The methodology employed in this study involved a survey method to analyze ecological indices and estimate carbon sequestration in mangrove biomass and sediments. The Importance Value Index indicated that the Avicennia alba mangrove species exhibited higher density and canopy coverage compared to the other three found species: Sonneratia caseolaris, Avicennia marina, and Rhizophora mucronata. The high density and canopy coverage of Avicennia alba made it the mangrove species with the highest estimated carbon biomass content. The estimated carbon storage in mangrove biomass at the research site ranged from 21.55 to 144.22 tons C/ha, while the estimated carbon storage in mangrove sediments varied from 98.45 to 181.06 tons C/ha. The total carbon storage estimate in the mangrove ecosystem of Mojo Village, Pemalang, ranged from 112.43 to 247.98 tons C/ha, with an average of 155.13 tons C/h
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
Riparian Vegetation Structure of the Jengok River, Kutaliman, Kedungabanteng District, Banyumas Regency
Full text linkJengok River has a high value for the Kutaliman community. The community utilizes the ecosystem services of the Jengok River and is inseparable from the presence of riparian vegetation, which controls water quality. This study aimed to determine riparian vegetation structure on the Jengok River, Kutaliman, Kedungbanteng district, and Banyumas Regency. The research was conducted in October-November 2022 in the Jengok riparian zone using a quadrat transect with sizes 20x20 m2 for trees dan 2x2 m2 for understoreys. Data were analyzed using the Shannon-Wiener Diversity Index (H'), the Modified Hill's Ratio Evenness Index (e'), the Margalef Richness Index (DMg), and the Important Value Index (IVI). The results show that the diversity of riparian vegetation based on the Shannon-Wiener Diversity Index (H') is a moderate category, and the Evenness Index (e') is the distribution of individuals per species evenly. Furthermore, the Margalef Richness Index (DMg) shows 4.51 for trees and 4.34 for understorey. The highest IVI in the tree stratum was Lansium domesticum Corrêa. In contrast, in the understorey stratum was Musa paradisiacal L. This indicates both species have an essential role in their communit
Phyllanthus acidus (L.) Skeels (Pemanfaatan dan Bioaktivitasnya
Full text linkPhyllanthus acidus (Phyllataceae) is an underutilized fruits tree (UFT) which has the potential to be developed both as food and traditional medicine. This study aims to explain botany, benefits and bioactivity of P. acidus. The research method is using online library research on Google Scholar using the keywords P. acidus, bioactivity and uses of P. acidus. Local Indonesian people have long been cultivating P. acidus in their yards which are used as food, vegetables and traditional medicine, but on the other hand they contain toxic compounds known as Dichapetalins. The fruits of P. acidus has sour taste, not broken, juicy, 1 cm in diameter, 6-8 lobes, angular, enlarged fruit, hard endocarp. The P. acidus fruit is traditionally used to treat various diseases such as inflammation, rheumatism, bronchitis, asthma, respiratory disorders, liver disease, gastric disorders and diabetes. The use of P. acidus as a traditional medicine is related to its bioactivity as an antioxidant, anti-diabetes mellitus, anti-microbial, hepatoprotective, analgesic, anti-cancer, and diuretic. The toxic dichapetalins cause adverse health effects in higher doses so their use needs to be strictly controlled.Phyllanthus acidus (Phyllataceae) is an underutilized fruits tree (UFT) which has the potential to be developed both as food and traditional medicine. This study aims to explain botany, benefits and bioactivity of P. acidus. The research method is using online library research on Google Scholar using the keywords P. acidus, bioactivity and uses of P. acidus. Local Indonesian people have long been cultivating P. acidus in their yards which are used as food, vegetables and traditional medicine, but on the other hand they contain toxic compounds known as Dichapetalins. The fruits of P. acidus has sour taste, not broken, juicy, 1 cm in diameter, 6-8 lobes, angular, enlarged fruit, hard endocarp. The P. acidus fruit is traditionally used to treat various diseases such as inflammation, rheumatism, bronchitis, asthma, respiratory disorders, liver disease, gastric disorders and diabetes. The use of P. acidus as a traditional medicine is related to its bioactivity as an antioxidant, anti-diabetes mellitus, anti-microbial, hepatoprotective, analgesic, anti-cancer, and diuretic. The toxic dichapetalins cause adverse health effects in higher doses so their use needs to be strictly controlled
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
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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