1,720,954 research outputs found
KAJIAN SERBUK BUAH PINANG (Areca catechu, L.) SEBAGAI BAHAN BAKU KOMPOS
No full textJika dihitung dengan jumlah kerja efektif perusahaan yakni (7 jam/hari),
secara kuantitatif menghasilkan 630 kg/hari serbuk pinang. Hasil uji analisis unsur
hara makro pokok (N, P, K) serbuk buah pinang yang dilakukan di Laboratorium
Kimia Tanah, Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Andalas,
Padang, didapatkan nilai unsur hara makro pokok serbuk buah pinang sebelum
difermentasi yakni (N = 1,05 %, P = 0,32%, K = 0,07%).
Sementara nilai koefisien C/N ratio-nya adalah (54,65:1,05). Diketahui
bahwa C/N tanah pertanian adalah (10-12) dan nilai koefisien C/N ratio yang baik
untuk kompos adalah (20:1 – 40:1). Maka bahan organik yang akan digunakan
sebagai pupuk, sebaiknya mempunyai perbandingan C/N yang mendekati C/N
tanah. Sisa-sisa tanaman yang masih segar pada umumnya C/N-nya tinggi
sehingga perlu dikomposkan agar bisa digunakan sebagai pupuk. Nilai koefisien
ratio C/N yang cukup tinggi bisa diredam dengan penstabilan unsur N (nitrogen).
Salah satunya adalah dengan penambahan Tithonia diversifolia (tanaman
kembang bulan), karena kandungan nitrogennya relatif lebih tinggi bila
dibandingkan dengan tanaman lainnya.
Dari hasil uji analisis unsur hara pokok (N, P, K) terlihat bahwa serbuk buah
pinang cukup potensial untuk dimanfaatkan sebagai bahan baku kompos. Tingkat
ketersedian bahan baku serbuk buah pinang juga sangat memadai untuk
digunakan dalam pembuatan pupuk organik (kompos). Berdasarkan kondisi ini
penulis tertarik untuk melakukan penelitian dengan judul “Kajian Serbuk Buah
Pinang (Areca catechu, L.) sebagai Bahan Baku Kompos”
EVALUASI KINERJA TENAGA KERJA BAGIAN SORTASI BIJI PINANG (Areca catechu, L.) CV. RASDI & CO BERDASARKAN FAKTOR-FAKTOR YANG BERPENGARUH
Full text linkEvaluasi faktor-faktor yang berpengaruh terhadap produktivitas tenaga kerja akan menghasilkan rekomendasi dalam pengembangan sumber daya manusia bagi perusahaan. Tujuan dari penelitian ini adalah mengetahui pengaruh motivasi, lingkungan kerja, gaji, beban kerja dan usia terhadap tenaga kerja bagian sortasi biji pinang CV. Rasdi & Co serta menghasilkan rekomendasi untuk peningkatan kinerja tenaga kerja berdasarkan faktor-faktor yang berpengaruh terhadap tenaga kerja bagian sortasi biji pinang CV. Rasdi & Co. Metode yang digunakan dalam penelitian ini adalah metode survei. Pengolahan data menggunakan analisis regresi linear berganda.
Hasil penelitian menunjukkan bahwa motivasi, lingkungan kerja, gaji, beban kerja dan usia memberikan pengaruh terhadap tenaga kerja sortasi CV. Rasdi & Co. Persamaan regresi yang diperoleh adalah Y = -4,640 + 0,210 X1 + 0,089 X2 + 0,080 X3 - 0,070 X4 + 0,813 X5. Dari persamaan regresi linear tersebut dapat diketahui bahwa nilai koefisien variabel usia lebih besar dari nilai koefisien variabel bebas lainnya. Nilai koefisien variabel usia sebesar 0,813. Setelah dilakukan evaluasi terhadap kinerja tenaga sortasi didapatkan 5 rekomendasi untuk peningkatan kinerja.
Kata kunci: Sortasi, Regresi Linear Berganda, Rekomendas
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
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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