1,720,968 research outputs found
Pertumbuhan, Produksi dan Efi siensi Pemanfaatan Lahan dalam Sistem Tumpangsari Jagung dan Kacang Hijau dengan Interval Penyiraman Berbeda
Full text linkWater availability is a limiting factor to develop farming systems in the arid region, therefore more attention is given in the effort to increase water use true intercropping system. The research aim was to increase the productivity and land use effi ciency. Research was conducted at fi eld station of Agriculture Faculty, Haluoleo University. The experimental was arranged in completely randomized block design with two factors and three replications. The fi rst factor was watering interval, i.e. once every 2, 4 and 6 days. Second factor is planting time of mungbean, i.e. 0, 7, 14, 21 and 28 days after planting (DAP) maize. The result showed that total yield of maize is 5.67 ton ha-1 in intercropping system occurred at delayed planting of mungbean, i.e. at 14 DAP maize, and watering interval every 4 days. Our result showed that intercropping system could improve yield up to 39.68% compared to monoculture planting system of maize and mungbean. Leaf area index, long ear and number of grain per ear of maize have correlation with yield. Number of pod per hill of mungbean has correlation to weight of 1,000 grain and dry pod yield. Percentage of pod emptiness has negative correlation to weight of 1,000 grain and dry pods yield. Keywords: intercropping, LER, maize, mungbean, water availabilit
Agroklimatologi. Aspek-aspek klimatik untuk sistem budidaya tanaman
No full textBuku ini membahas tentang aspek-aspek klimatik dalam kaitannya dengan sistem budidaya tanaman yang berdampak pada curah hujan, suhu dan kelembaban udara maupun instensitas radiasi yang dirasakan semakin bergeser dari kondisi alami.xii, ; 188 hal. : ilus, ; 24 c
MODEL ESTIMASI UNTUK EVAPOTRANSPIRASI DAN LENGAS TANAH: STUDI KASUS SUB DAS MANTING, JAWA TIMURESTIMATE MODEL FOR EVAPOTRANSPIRASI AND SOIL HUMIDITY:CASE STUDY AT MANTING WATERSHED IN EAST JAVA
No full textAbstract is available in the full text (pdf format
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
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
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