1,720,957 research outputs found
Efektivitas pengencer laktat ringer, modifikasi ringer dan larutan fisiologis NaCI terhadap viabilitas Spermatozoa ikan baung (Hemibagrus nemurus)
No full textLambatnya perkembangan budidaya ikan ini antara lain disebabkan oleh masih kurangnya informasi tentang fisiologis dari semen ikan baung dan juga kurang dikuasainya teknologi pembenihan. Penelitian ini bertujuan untuk mendapatkan gambaran karakteristik morfometri testes dan fisiologi semen ikan baung serta menentukan salah satu jenis pengecer dan rasio pengecer yang optimal untuk preservasi semen ikan baung
Rancang Bangun Kompor Biomassa Berbahan Dasar Plat Besi dan Beton Dilengkapi Dengan Teknologi Blower
No full textAbstrak Telah dibuat kompor biomassa berbahan bakar kayu untuk dimanfaatkan oleh penggiat UKM yangbergerak dibidang pengolahan rumput laut untuk dijadikan berbagai makanan ringan. Kompor dibuat dariplat besi 2 mm dengan dimensi 30 cm x 30 cm x 40 cm sehingga dapat menampung bahan bakar yangbanyak dan tidak mudah habis. Ruang dalam kompor dilapisi dengan beton dari cor semen denganketebalan mencapai 5 cm. Kompor ini menggunakan tambahan teknologi blower dari kipas angin untukmembantu proses nyala api, pembakaran dan arah api. Hasilnya kompor biomassa ini mampu digunakanuntuk memasak dodol mencapai 5 jam.Kata Kunci: Kompor Biomassa; Bahan Bakar Kayu, Plat Besi, Blower. Abstract Wood-based biomass stoves had been made to be used by UKM entrepreneurs engaged in the seaweedprocessing into variety of snacks. The stove was made of 2 mm iron plate with dimensions of 30 cm x 30cm x 40 cm so that it can accommodate a lot of fuel and is not easy to run out. The space in the stove wascoated with concrete from a cement which is up to 5 cm thick. This stove used additional blowertechnology from the fan in order to help the flaming process, combustion and the direction of fire. Theresult is that this biomass stove can be used to cook dodol for up to 5 hours.Keywords: Biomass Stove; Wood Fuel, Iron Plate, Blower
Pemanfaatan kombinasi tepung kepala udang dan pakan komersial pada penggelondongan nener Bandeng (Chanos chanos) di tambak tradisional
Get PDFSaat ini pengembangan penggelondongan nener bandeng masih menggunakan pakan komersiil yang harganya semakin mahal. Disisi lain pada daerah ini memiliki potensi limbah kepala udang yang belum dimanfaatkan sehingga perlu adanya upaya untuk memanfaatkannya sebagai pakan ikan. Tujuan dari penelitian adalah untuk mengetahui efektivitas penggunaan pakan kombinasi tepung kepala udang dan pakan komersial terhadap pertumbuhan nener bandeng. Penelitian terdiri dari lima perlakuan, yaitu perlakuan kontrol (pakan komersil 100%), tepung kepala udang 25% dan 75% komersial, tepung kepala udang 50% dan 50% komersial, tepung kepala udang 75% dan 25% komersial dan 100% tepung kepala udang dengan menggunakan rancangan acak lengkap (RAL). Pakan diberikan sebanyak 5% dari total berat tubuh ikan dan pemberian sebanyak dua kali sehari. Parameter yang diamati adalah pertumbuhan panjang, pertumbuhan berat, laju pertumbuhan, kelangsungan hidup, FCR, serta beberapa parameter kualitas air seperti suhu, pH, salinitas, DO. Hasil penelitian menunjukkan nilai pertumbuhan panjang sebesar 2.72 ± 0.05 cm, pertumbuhan bobot sebesar 0.086 ± 0.003 g, laju pertumbuhan sebesar 0.0044 ± 0.0002 g, kelangsungan hidup sebesar 75% dan FCR sebesar 0.86±0.03 %. Hasil terbaik diperoleh pada perlakuan tepung kepala udang 25% dan 75% komersial, sedangkan hasil dari pengukuran kualitas air yaitu suhu berkisar 28°C - 32°C, pH berkisar 7.56 - 8.76, salinitas berkisar 8 – 10 ppt dan oksigen terlarut DO berkisar 4.83 - 5.66 mg/L. Semua parameter yang diamati menunjukkan bahwa penggunaan tepung kepala udang dalam pakan buatan memberikan pengaruh nyata pada laju pertumbuhan nener bandeng dengan hasil nilai pertumbuhan tinggi, sedangkan nilai FCR rendah
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
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