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Analisis Faktor-Faktor Produksi Usaha Pembesaran Udang Vanname (Litopenaeus Vannamei) Di Kecamatan Paciran Kabupaten Lamongan Jawa Timur ; Pendekatan Fungsi Cobb-Douglass
Get PDFUsaha pembesaran udang vannamei merupakan salah satu usaha budidaya perikanan yang berpotensi menguntungkan sehingga pengembangan usaha tersebut memberikan prospek yang menjanjikan. Secara umum, petambak udang vannamei di Kabupaten Lamongan didominasi oleh petambak skala kecil dengan luas lahan kurang dari 5 ha. Dalam produksi, petambak skala kecil sering dihadapkan dengan masalah kelangkaan sumber daya sebagai input produksi mereka. Penggunaan input yang optimal adalah salah satu faktor penting dalam peningkatan produksi. Penggunaan input produksi seperti tenaga kerja, pupuk, pupuk, dan tingkat kepadatan akan memastikan produksi berkelanjutan.
Tujuan dari penelitian ini adalah untuk (1) Mempelajari karakteristik budidaya udang vannamei dengan tekonologi semi intensif dan intensif di Kecamatan Paciran, Kabupaten Lamongan, (2) Menganalisis seberapa besar faktor yang mempengaruhi produksi udang vannamei di Kecamatan Paciran, Kabupaten Lamongan, (3) Menganalisis skala usaha (return to scale) produksi pada usaha budidaya udang vannamei di Kecamatan Paciran, Kabupaten Lamongan. (4) Mengetahui tingkat efisiensi penggunaan faktor-faktor produksi udang vannamei.
Penelitiaan ini dilaksanakan di Kecamatan Paciran Kabupaten Lamongan. Waktu penelitian pada Bulan April-Mei 2012. Metode penelitian ini bersifat Deskriptif kualitatif dan kuantitatif, jenis dan sumber data menggunakan data primer dan data sekunder dengan teknik pengumpulan data secara dokumentasi, observasi dan wawancara. Analisa data yang digunakan adalah analisa deskriptif kuantitatif.
Berdasarkan penelitian yang telah dilakukan dapat diambil beberapa kesimpulan bahwa Karakteristik budidaya yang dilakukan oleh pembudidaya udang vanname meliputi : 1) persiapan lahan tambak (persiapan kolam pembesaran, pengeringan tanah, pengapuran, pemupukan, pemasangan kincir tambak, pengisian air, dan penebaran benih,); 2) proses pembesaran (manajamen pakan, pengontrolan, kualitas air, checking anco, sampling, pengelolaan media budidaya, pengendalian hama, dan penyakit) dan; 3) pemanenan.
Untuk analisis faktor-fakto produksi usaha pembesaran udang vanname (litopenaeus vannamei) berdasarkan hasil penelitian dilakukan bebepara uji instrument data ternyata data yang di hasilkan semua layak untuk dilakukan pengujian, Pada hasil uji R2 menunjukan nilai sebesar 0,828. Artinya variabel bebas yang terdiri dari Tenaga kerja (X1), Pupuk (X2), Pakan (X3), dan Padat penebaran (X4) secara gabungan berpengaruh terhadap produksi udang vanname adalah sebesar 82,8 %. Adapun sisanya 17,2 % dipengaruhi oleh faktor lain. Dan untuk uji F hitung 35,939 dimana lebih besar dari F tabel yaitu 2,69 yang berarti secara bersama-sama ada pengaruh yang positif antara variabel tenaga kerja, pupuk, pakan dan padat penebaran terhadap variabel produksi udang vanname. Dari hasil uji t menunjukkan bahwa faktor-faktor produksi yang berpengaruh signifikan terhadap jumlah produksi udang vanname dalam penelitian ini adalah tenaga kerja, pupuk, pakan, dan padat penebaran. Berdasarkan analisis regresi dengan model Cobb-Douglas diperoleh nilai persamaan Y = - 4,75872 + 1.424 X1 + 0.057 X2 + 0.573 X3 + 0.232 X4 + e.
Berdasarkan hasil Return to Scale didapatkan nilai 2,286 ini menunjukkan kegiatan usaha produksi tambak udang termasuk ke dalam skala Increasing Return to Scale yaitu proporsi penambahan faktor produksi akan menghasilkan tambahan produksi dengan proporsinya lebih besar.
Berdasarkan hasil analsis efisiensi produksi didapatkan bahwa faktor produksi tenaga kerja, pupuk, pakan, dan padat penebaran belum efisien (kondisi optimum belum tercapai).
Adapun saran untuk petambak udang vannamei yaitu Perlu diberikan pelatihan dan penyuluhan yang intensif mengenai tata cara budidaya pembesaran udang vanname yang baik dari dinas atau instansi terkait mengingat mayoritas pembudidaya mempunyai latar belakang pendidikan yang relatif masih rendah sehingga diperoleh peningkatan pemahaman akan budidaya budidaya pembesaran udang vanname, Perlu dilakukan penelitian lebih lanjut dengan menambah variabel lain seperti luas lahan, obat-obatan, probiotik, dll yang mempengaruhi produksi sehingga hasilnya lebih dapat meningkatkan produktivitas usaha budidaya pembesaran udang vanname dan Pembudidaya perlu menambahkan faktor produksi tenaga kerja, pupuk, pakan, dan padat penebaran agar hasil produksi udang vanname lebih meningkat. Sedangkan saran untuk peneliti dan lembaga akademis lain agar bisa dilakukan penelitian lebih lanjut tentang beberapa faktor yang belum di jelaskan dalam laporan ini
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
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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