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Inventarisasi anggrek di beberapa pulau kecil di Pulau Abang dan sekitarnya, Batam, Kepulauan Riau
No full textINSTITUTIONAL DEVELOPMENT OF IRRIGATION MANAGEMENT BASED ON THE LOCAL WISDOM IN INDONESIA
No full textDuring 1980-1997, the management of water resources was done with a supply-driven approach. This approach results in the expensive maintenance of water resources and the disregarded resources utilization of environmental sustainability. Since 1998, The Government of Indonesia began to reform institutional irrigation with the financing supported by the World Bank. However, the institutional reforms of the irrigation have not yet reflected the exact changes as expected. Therefore, it is necessary to study the process of strengthening the institutional management of irrigation based on the local wisdom through the inventory of history series of irrigation management policy and empowerment of capacity building and institutional program of irrigation management. This paper presents an effort to develop the institutional irrigation management by exploring the local wisdom in the community. It can be used as a guide for future sustainable management of irrigation. Keywords: agriculture, Subak, Ulu-ulu, water resources, farmers’ unionJEL Classification: B30, Q15, Q25</jats:p
Analisis Kelayakan Finansial Pengembangan Sistem Irigasi Cakram Otomatis Bertenaga Surya di Nusa Tenggara Barat
No full textPenelitian implementasi teknologi irigasi hemat air menggunakan sistem irigasi otomatis yang berbentuk emiter melingkar(cakram/cincin) bertenaga surya telah dilakukan. Untuk mengetahui kelayakan investasi pembuatan sistem irigasi cakram otomatis bertenaga surya, dilakukan analisis Net Present Value (NPV), Internal Rate of Interest (IRR), dan Benefit Cost Ratio (BCR). Suatu investasi dikatakan layak bila memenuhi kriteria sebagai berikut: (1) NPV lebih besar dari nol, (2) IRR lebih besar dari discount rate yang sedang berlaku, (3) BCR lebih besar dari 1. Hasil analisis menunjukkan bahwa sistem irigasi cakram otomatis bertenaga surya untuk pengembangan komoditas mangga, srikaya, anggur, dan cabe sangat layak untuk dilaksanakan, dengan nilai NPV dari investasi berkisar antara Rp 1.533.423,00 – Rp 21.995.452, nilai BCR antara 1,34 - 3,78, dan nilai IRR antara 17,38% - 34,10%. Implementasi sistem irigasi cakram otomatis bertenaga surya dengan pengembangan srikaya dan mangga paling layak dikembangkan di Pringgabaya dengan nilai NPV, BCR, dan IRR paling tinggi. Sedangkan implementasi irigasi cakram otomatis dengan hanya mengembangkan cabe tidak layak secara finansial karena nilai NPV < 0, nilai BCR < 1, dan nilai IRR < suku bunga 14%. Investasi pembuatan irigasi otomatis dengan sistem cakram rata-rata kembali modal pada tahun ke-4 hal ini tercermin dari nilai payback period (periode kembali modal).</jats:p
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
Utilization of Produced Water of Oil and Gas Exploitation for Agricultural Development in Muara Enim district, south Sumatera
No full textABSTRACT
Besides producing crude oil and gas as the main drilling product, PT. Medco
Energi Indonesia in several drilling wells in Indonesia also produces water by‐products.
Data from the exploitation of several oil and gas drilling wells owned by PT. Medco
Energi Indonesia, shows that total crude oil production of 30,000 Barrels per day,
270,000 Barrels per day has been produced which is equivalent to 43,000,000 liters of
water. This volume of produced water has not been utilized for agricultural
development. The purpose of research wasto identify and characterize the land and socioeconomic
survey to find out the problems, obstacles and opportunities for agricultural
development in the area around Singa well, Lematang Exploitation Block, Muara Enim
Regency, South Sumatra. The results of the discharge analysis show that the produced
water is around 1.48 liters/second which is estimated to be sufficient to irrigate 2.5
hectares of land. Soil chemical analysis showed that the soil reacts acidic with a pH
range between 4.17‐4.66, contains low in C‐organic, essential nutrients (nitrogen,
phosphor, potassium, sulfur), CEC, micro nutrients (Mn, Cu, Zn), except high iron
content. This produced water requires management with appropriate technology to
increase organic matter content of around 5%, increase pH more than 5.0, increase
nutrient levels by applying fertilizer sourced from outside the plant system. For
developing lowland organic vegetables, 40‐60 tons/ha of organic fertilizer is needed
without additional inorganic fertilizers such as Urea, SP‐36, KCl, sulfur or micro
fertilizers
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
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