1,720,954 research outputs found
Pengantar Ilmu Perikanan dan Kelautan (Budi Daya Perairan)
No full textKolam merupakan tempat yang paling ideal untuk pemeliharaan ikan. Pemeliharaan ikan dalam kolam dapat dilakukan secara monokultur dan polikultur. Lokasi perkolaman harus memenuhi persyaratan antara lain sumber air cukup, letak kolam bebas dari banjir dan pencemaran air, kondisi tanah kolam liat berpasir, dan sarana lain seperti jalan sudah tersedia.
Sebelum benih ikan ditebar dalam kolam, persiapan yang perlu dilakukan adalah (1) pengeringan kolam selama 3-5 hari dengan maksud untuk menghilangkan gas-gas beracun dan mempermudah penguraian bahan-bahan organik menjadi mineral, (2) pengolahan tanah dasar sambil membalik dan meratakan, (3) perbaikan pematang untuk menutup kebocoran dan penyempurnaan pintu air, (4) pengapuran dan pemupukan
PENGARUH PERBEDAAN TINGKAT PROTEIN DAN RASIO PROTEIN PAKAN TERHADAP PERTUMBUHAN IKAN SEPAT (Trichogaster pectoralis)
Get PDFTujuan penelitian ini untuk mengetahui tingkat protein dan energi pakanterbaik pada ikan sepat. Manfaat penelitian ini untuk dapat dijadikan informasi dasar mengenai tingkat protein dan energi yang sesuai bagi kebutuhan konsumsi pakan danpertumbuhan benih ikan sepat. Ikan uji yang digunakan ikan sepat (Trichogasterpectoralis) dengan bobot individu berkisar antara 5±2 gram dan panjang baku berkisar5±3 cm. Penelitian dilakukan secara eksperimen, menggunakan Rancangan AcakLengkap (RAL) dengan 6 macam perlakuan dan masing-masing diulang sebanyak 3kali. Perlakuan yang diberikan terdiri atas tingkat energi protein yang berbeda, yaitu perlakuan A (2800 kkal/35%), perlakuan B (3150 kkal/35%), perlakuan C (3150kkal/40%), perlakuan D (3600 kkal/ 40%), perlakuan E (3600 kkal/45%), dan perlakuan F (4050 kkal/45%). Parameter yang diamati meliputi pertumbuhan mutlak,laju pertumbuhan relatif, konversi pakan, efisiensi pakan, kelangsungan hidup, dankualitas air. Hasil penelitian menunjukkan bahwa pakan dengan tingkat protein 40%dan energi 3150 kkal/kg menghasilkan pertumbuhan mutlak, laju pertumbuhan relatif,konversi pakan, dan efisiensi pemberian pakan yang terbaik dibandingkan dengan perlakuan lainnya. Kelangsungan hidup ikan sepat berkisar antar 96,67-100%. Kualitas air (suhu, pH, DO, NH3, dan CO2) pada tiap perlakuan masih memenuhi standar untuk kehidupan ikan sepat
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
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
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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