bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisis Kelayakan Finansial Usahatani dan Preferensi Konsumen Pamelo (Citrus Maxima (Burm.) Merr.) (Di Desa Tambakmas Kecamatan Sukomoro Kabupaten Magetan)
Authors: Utami Marizki , Nahraeni Wini , Yusdiarti Arti 
Published: July 2020

Tujuan penelitian ini yaitu menganalisis kelayakan dari aspek finansial usahatani pamelo di Desa Tambakmas Kecamatan Sukomoro Kabupaten Magetan dan mengetahui tingkat kesukaan terhadap atribut buah pamelo. Data dikumpulkan melalui survey terhadap 50 petani pamelo di Desa Tambakmas, 60 konsumen pamelo di Jakarta, Bogor dan Sukabumi dan 60 panelis semi terlatih yang terdiri atas dosen, staf dan mahasiswa Universitas Djuanda Bogor. Penelitian ini menggunakan analisis NPV dan metode Multiatribut Fishbein dengan menggunakan program microsoft office excel 2007 dan SPSS 20. Hasil penelitian menunjukan bahwa nilai NPV usahatani pamelo ini adalah sebesar Rp 43.716.585,92. Berdasarkan tingkat kepentingan dimata konsumen yaitu atribut kandungan vitamin, dikuti oleh rasa dan juiceness. Berdasarkan tingkat kepercayaan, kandungan vitamin diikuti oleh jumlah biji dan grainess. Sikap konsumen terhadap atribut pamelo memiliki nilai 147,811 berada diantara interval 108 - 156, termasuk dalam kategori biasa. Hasil pengujian kruskal wallis pada mutu organoleptik aroma, rasa, warna dan juiceness memberikan beda signifikan (P=0,01) sehingga semua atribut berpengaruh nyata terhadap buah pamelo. Berdasarkan hasil uji organoleptik didapatkan Duku 2 memiliki keunggulan aroma, Gulung 1 memiliki keunggulan rasa dan juiceness, dan Pamelo Magetan keunggulan warna dibandingkan varietas lainnya.Kata kunci : Kelayakan finansial usahatani, Preferensi, Pamelo
ANALISIS KINERJA KOPERASI PRODUSEN TEMPE TAHU INDONESIA (KOPTI) DI KABUPATEN BOGOR PROVINSI JAWA BARAT DENGAN METODE BALANCED SCORECARD
Authors: Antoni Erwin , Arsyad Apendi , Miftah Himmatul 
Published: July 2020

Dalam kehidupan sehari-hari, persaingan lingkungan bisnis dalam bidang pertanian khususnya koperasi, perencanaan strategis yang tepat merupakan suatu faktor yang harus diperhatikan untuk mencapai target yang diinginkan. Pengukuran kinerja tersebut dilakukan untuk mengevaluasi pengukuran kinerja secara menyeluruh, dengan menggunakan pendekatan Balanced Scorecard. Balanced Scorecard merupakan alat ukur kinerja yang menyeimbangkan empat perspektif, yaitu perspektif pelanggan, perspektif keuangan, perspektif proses bisnis intenal serta perspektif pembelajaran dan pertumbuhan. Studi analisis kinerja KOPTI Kabupaten Bogor ini menggunakan metode Balanced Scorecard, yang dinilai secara keseluruhan mencapai hasil yang cukup baik, dengan total capaian keseluruhan dari keempat perspektif Balanced Scorecard tersebut adalah sebesar 72,90%. Hal ini berarti bahwa kinerja KOPTI Kabupaten Bogor pada tahun 2012 tergolong dalam kategori Sangat Sehat (A) karena total skor berada pada selang 65<Total Skor<80. Total skor pada perspektif pelanggan sebesar 8,58%, total perspektif keuangan sebesar 17,88%, total perspektif proses bisnis internal sebesar 17,60%, dan total perspektif pembelajaran dan pertumbuhan sebesar 28,84%. Kata kunci: Pengukuran kinerja, Balanced Scorecard, KOPTI Kabupaten Bogor
Redistribution of particle-size fractions in ordinary chernozem affected by long-term irrigation and chemical melioration with phosphogypsum
Authors: Makarova T. K. , Maksуmova N. N. , Нapich G. V. , Chushkina I. V. 
Published: July 2020

The article reveals the issue of redistribution of particle-size fractions in ordinary low-humus leached chernozem on loamy loess in the condition of Northern Steppe of Ukraine affected by the irrigation with II class water and chemical melioration with phosphogypsum. Rather long use of water for irrigation from the reservoir on the Samara River in the Dniprovskyi district of the Dnipropetrovsk region deteriorated the soil properties due to salinization development in it, which led to the use of phosphogypsum. The calculated application rates of phosphogypsum 1,4 t/ha, 3 t/ha and 6 t/ha were applied along with irrigation and without it. The effect of chemical melioration and irrigation on the ecological and ameliorative condition of soil that resulted in the change of its particle-size composition, bulk density and structure was studied.
It is established that irrigation of the soil with an average irrigation rate of 1500 m3/ha reduces the content of physical clay by 0,12-0,06% compared to the options without irrigation. When applying phosphogypsum along with irrigation there are minor changes in the redistribution of particle-size fractions: an increase in the fractions of physical sand and a decrease in the fractions of physical clay. It was determined that the particle-size composition of soil is more resistant to the effect of phosphogypsum rather than to the effect of irrigation.
In non-irrigated variants when applying chemical melioration with phosphogypsum, the content of physical sand increases by 0,54-0,91% compared to the reference variant and the content of physical clay decreases by 0,87-1,13%. With increasing the rate of phosphogypsum, the content of physical sand also increases. The effect of improving the structure and loosening of the soil is observed in the variants where phosphogypsum at the rate of 6 t/ha was applied under the main tillage and at the rate of 3 t/ha under spring cultivation.
ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIK SISWA PADA LKS BERBASIS MASALAH DI KELAS VIII SMPN 5 LANGSA
Authors: Rama Rama 
Published: July 2020

Penelitian ini bertujuan untuk (1) mengetahui bagaimana proses pembelajaran siswa kelas VIII SMP Negeri 5 Langsa dalam meningkatkan kemampuan pemecahan masalah matematik (2) mengetahui bagaimana kemampuan pemecahan masalah matematik siswa pada lembar kerja siswa (LKS) berbasis masalah di kelas VIII SMP Negeri 5 Langsa. Penelitian ini merupakan metode deskriptif dengan pendekatan kualitatif. populasi siswa yang berjumlah 221 siswa dan terdiri dari 9 kelas yaitu kelas . Sampel adalah kelas untuk menganalisis kemampuan pemecahan masalah matematika siswa pada lembar kerja siswa (LKS). Instrumen penelitian yang digunakan terdiri dari Lembar observasi ini digunakan sebagai pedoman untuk memperoleh data apakah pembelajaran dengan menggunakan lembar kerja siswa (LKS) berbasis masalah sudah berjalan dengan baik atau belum. Untuk mengetahui kemampuan siswa dalam memecahkan masalah siswa dari kelas SMP Negeri 5 Langsa yaitu 4 siswa dari kelompok tuntas pada materi luas permukaan dan volume kubus dan balok. Keempat siswa tersebut kemudian diwawancarai tentang soal pemecahan masalah yang sudah dikerjakan sebelumnya. Sehingga dari hasil jawaban tertulis siswa dan hasil wawancara tersebut didapatkan data kemampuan pemecahan masalah kelompok siswa yang tuntas. Aktivitas matematika siswa yang dilakukan siswa dalam pembelajaran berbasis masalah akan membentuk respon siswa. Dalam menyelesaikan masalah matematika, akan lebih bermakna jika siswa mampu mengidentifikasi masalah, melakukan perencanaan pemecahan masalah, serta menyelesaikan masalah secara mandiri. Dari hasil penelitian menunjukkan bahwa hasil kemampuan pemecahan masalah empat orang siswa yang tuntas pada tes hasil belajar dikategorikan sangat baik. Hlm ini dikarenakan keempat siswa tersebut dapat melakukan keempat langkah pemecahan masalah, yaitu memahami masalah, merencanakan penyelesaian, menyelesaikan rencana penyelesaian dan memeriksa kembali dengan tepat dan benar. Hasil observasi kegiatan guru mencapai 89,95% dengan kriteria baik sekali, sehingga tindakan dikatakan berhasil sedangkan kegiatan siswa mencapai 87,5% dengan kriteria baik sekali, sehingga dikatakan berhasil.
PENGGUNAAN MODEL DISCOVERY LEARNING BERBASIS MEDIA INTERAKTIF TERHADAP KEMAMPUAN BERPIKIR KREATIF SISWA DALAM BELAJAR MATEMATIKA
Authors: Nurhayati Nurhayati , Wahyuni Rahmi 
Published: July 2020

Kemampuan berpikir kreatif sangat diperlukan untuk memecahkan suatu masalah serta menemukan konsep-konsep dalam pembelajaran matematika. Salah satu model yang dapat meningkatkan keterampilan berpikir kreatif yaitu model pembelajaran Discovery Learning berbasis media interaktif. Penelitian ini bertujuan untuk mengetahui apakah terdapat perbedaan kemampuan berpikir kreatif siswa yang diajarkan dengan menggunakan model pembelajaran Discovery Learning berbasis media interaktif dan yang diajarkan dengan menggunakan pembelajaran konvensional. Penelitian ini merupakan jenis penelitian eksperimen dengan desain rancangan yaitu desain kelompok pretest-postest. Populasi penelitian ini adalah seluruh siswa kelas XI yang terdiri dari 3 kelas berjumlah 90 orang. Sampel dalam penelitian ini adalah siswa kelas XI-2 sebagai kelas eksperimen dan kelas XI-3 sebagai kelas kontrol. Pengumpulan data dilakukan dengan menggunakan tes dan selanjutnya dianalisis menggunakan Paired Samples t-test dengan bantuan program SPSS. Hasil analisis diperoleh bahwa nilai sig. (2 Tailed) yaitu 0.01. Hal ini menunjukkan bahwa nilai sig. (2 Tailed) < taraf kepercayaan 5% maka ditolak, artinya adanya perbedaan kemampuan berpikir kreatif siswa yang diajarkan dengan menggunakan model pembelajaran Discovery Learning berbasis media interaktif dan yang diajarkan dengan menggunakan pembelajaran konvensional pada materi barisan dan deret di MAS Darussadah Cot Tarom Bireuen.
Pola, Prinsip, dan Tugas Supervisi PAI
Authors: A.Natsir Andi Fadhilah 
Published: July 2020

Dalam dunia pendidikan dikenal adanya pengawas satuan pendidikan yang memiliki tugas tertentu dalam mengawasi jalannya pendidikan. Pengawas satuan pendidikan itu disebut sebagai supervisor. Seorang supervisor bertindak atas dasar ketentuan-ketentuan yang bersifat ilmiah dalam melaksanakan tugasnya agar dapat meningkatkan mutu dan kualitas pendidikan. Supervisor harus mempunyai suatu kompetensi khusus yang dapat melihat permasalahan dalam pendidikan yang sedang terjadi. Sebagai seorang supervisor sangat penting untuk mengetahui apa saja pola-pola supervisi yang tepat digunakan seperti supervisi umum, supervisi PBM dan supervisi kolegial atau kelompok. Selain itu dalam menjalankan tugas sebagai seorang supervisor, prinsip-prinsip supervisi harus diterapkan dengan baik sehingga proses pendidikan dapat berjalan sebagaimana mestinya dan tujuan pendidikan dapat dicapai. Adapun tugas-tugas supervise PAI adalah dimulai dari menghadiri rapat/pertemuan dengan guru-guru PAI, mendiskusikan masalah dan metode-metode mengajar guru khususnya dalam PAI, memberikan pembinaan, demonstrasi mengajar, mengevaluasi, dan memberikan penilaian.
Sikap Politik Urban Melayu
Authors: Mohd Nizah Mohd Azmir , Abdul Azzis Muhammad Shamshinor , Abu Bakar Afi Roshezry , Mak Din Hairol Anuar 
Published: July 2020

Comparative study on political attitudes between urban and rural communities has become a focus among scholars, especially after the results of 13th Malaysian general election. Nevertheless, studies on political attitude which focused on specific ethnic groups are still insufficient. This article aims to identify the political attitude of the urban Malays, especially in the context of political tolerance. This study discusses the political attitudes of urban Malays through quantitative research design which used questionnaire in three urban areas, namely, Johor Bahru, Shah Alam and Bukit Bendera. The findings summarized that Malay voters in urban areas are tolerant of political party’s differences and even an ethnicity is not a primary criteria of nominations in the elections. This study argues that urban Malays tend to tolerant of ethnic, religious or even liberal political party. Further analysis and recommendations are discussed.Keyword: ethnic tolerance, political tolerance, voting behaviour, modernization
Abstrak: Kajian perbandingan mengenai sikap politik antara masyarakat urban dan luar bandar telah menjadi fokus dalam kalangan sarjana, terutama selepas keputusan pilihan raya umum ke 13.Namun begitu, literasi kajian mengenai sikap politik yang tertumpu pada etnik yang spesifik masih lagi kurang. Artikel ini berhasrat mengenalpasti sikap politik urban Melayu, terutamanya dalam konteks toleransi politik. Kajian ini membincangkan mengenai sikap politik urban Melayu melalui rekabentuk kajian kuantitatif dengan instrumen soalselidik di tiga kawasan urban iaitu Johor Bahru, Shah Alam dan Bukit Bendera. Dapatan kajian merumuskan bahawa pengundi Melayu di kawasan urban terbuka dalam menerima perbezaan parti politik malah ukuran etnik bukanlah kriteria terhadap pencalonan dalam pilihan raya. Kajian ini menghujahkan kecenderungan pola sokongan parti politik kumpulan urban Melayu juga bersifat longgar dengan melepasi sempadan parti bersifat agama, etnik mahupun liberal. Analisa lanjut dan cadangan dibincangkan dalam artikel ini.Kata kunci: toleransi etnik, toleransi politik, kelakuan pengundi, modenisasi
Enhancement of the Hydrodynamic Characteristics in Shell-and-Tube Heat Exchangers by Using W-Baffle Vortex Generators
Authors: Menni Younes , Chamkha Ali J. , Ameur Houari , Inc Mustafa 
Published: July 2020

Improving the hydrodynamic characteristics of STHECs (Shell-and-Tube Heat Exchanger Channels) by using BVGs (Baffle-type Vortex Generators) is among the common passive methods due to their proved efficiency. In this computational investigation, the same method is used to enhance the hydrodynamic behavior of STHECs, by inserting W-shaped Baffle-type Vortex Generators. The numerical model represented by the computational FVM (Finite Volume Method) is used to simulate and analyzed the considered physical model. The fluid used is air, its thermal physical properties are constant, turbulent, incompressible, and its temperature is 300 K at the inlet section of the STHEC. The flow velocity ( Uin ) and atmospheric pressure ( Patm ) are considered as boundary conditions at the entrance (x = 0) and exit (x = L) of the channel, respectively. The results showed that the friction coefficients were related to the pressure, velocity, and Reynolds number values. High values of Re yielded an acceleration of the fluid, resulting thus in increased pressure on the solid walls and augmented friction values.
Impact of Kapotaksha river water pollution on human health and environment
Authors: Hanif MA , Miah R , Islam MA , Marzia S 
Published: July 2020

This study was conducted to evaluate the Kapotaksha River water pollution status and its impacts on Human health and Environment. This study conducted a case study on four selected areas (Barakpur, Srirampur, Prbazar, and Gouranandapur) on the Kapotaksha river bank at Jhikargas Upazila. This river water pollution occurs by some natural process such as flood, storm, and natural biodegraded. But human activities are major reasons for the river water pollution. Industrialization, urbanization, domestic waste, sewage system, agrochemicals, etc are major causes for river water pollution. This more polluted water has an impact on human health and environment. This study was conducted to find out the polluted water due to various types of diseases such as scabies, asthma, dysentery and respiratory disease. Most of the people (49%) are affected by Scabies, 4% are affected by diarrhea, 5% are affected by dysentery, 25% of people are suffering from respiratory diseases and 4% are suffering from asthma and the polluted water pollutes soil by using the water in agriculture purpose answered by 20% respondents which is 100% of farmer respondents. If someone does not use this water can not affect soil answered by 80% of respondents. This river water becomes more polluted and harmful for human health and environment because this water hampered by the local colony, local trader, lack of proper management of sewage system, miss-use on the riverbank area for the dumping various solid waste on the river bank, chemical fertilizers, industries etc. At present now we cannot fulfill control this continuous river water pollution but we can minimize this problem and it would be positive for human health, others living organisms and Environment.
Progressive Agriculture 31 (1): 1-9, 2020
Assessment of genetic divergence of deshi jute (Corchorus capsularis) germplasms by using phenotypic characters
Authors: Miah A , Saha NR , Ali MY , Kamrujjaman M , Parvej MSMS 
Published: July 2020

Twenty-two morpho-agronomic traits of 42 jute genotypes, including 4 varieties with 38 accessions of C. capsularis were evaluated to assess the extent and patterns of variability and their relationships. Seed traits exhibited a wider range of variation than fiber traits. Qualitative traits were also the most informative. Considerable ranges of variability were observed in stem colour, petiole colour, stipule colour, plant technical height, base diameter, dry fibre weight and dry stick weight. Based on major yield contributing characters’ accessions 628, 633, 635 and 646 performed better in most of the cases than the control variety CVL-1, CVE-3, BJC-7370 and BJC-83.
Progressive Agriculture 31 (1): 10-18, 2020
Economic assessment of lemon-based agroforestry systems established in Madhupur Sal forest area of Bangladesh
Authors: Hasan MK , Rahman GMM , Akter R , Hemel SAK , Islam MT 
Published: July 2020

The study was carried out to determine the economic assessment of lemon-based agroforestry systems established in the Madhupur Sal forest during the period from May 2017 to September 2018. The study selected five lemon-based agroforestry systems viz. Lemon-Mango-Pineapple-Papaya-Ginger, Lemon-Pineapple-Papaya-Banana-Aroid, Lemon-Pineapple-Papaya-Ginger, Lemon-Mango-Turmeric-Red amaranth and Lemon-Litchi-Papaya-Banana along with three replications having 0.13 ha area for each sample plot. The control plots (without lemon plant) for each of the five lemon-based agroforestry systems were also selected. In order to calculate the economic profitability of respective agroforestry systems as well as sole cropping performance, data related to incurred cost, total yield and income from lemon and crop components were collected through practical observation, key informant interview and focus group discussion. The benefit-cost ratio (BCR) and land equivalent ratio (LER) for each of the selected agroforestry systems were also determined. From the study, it has been found that all of the lemon-based agroforestry systems were profitable than their sole cropping in respect of income, BCR, and LER. The net profit (460032 Tk/ha) indicated that the Lemon-Litchi-Papaya-Banana based agroforestry systems were financially more profitable followed by Lemon-Pineapple-Papaya-Banana-Aroid, Lemon-Mango-Pineapple-Papaya-Ginger, Lemon-Pineapple-Papaya-Ginger, Lemon-Mango-Turmeric-Red amaranth based agroforestry systems. But the BCR and LER (3.515 and 1.73) revealed that Lemon-Pineapple-Papaya-Banana-Aroid based agroforestry system was more productive followed by Lemon-Litchi-Papaya-Banana, Lemon-Mango-Pineapple-Papaya-Ginger, Lemon-Pineapple-Papaya-Ginger, Lemon-Mango-Turmeric-Red amaranth based agroforestry systems. Prior to considering the obtained results from the study, it can be concluded that lemon-based agroforestry systems are more profitable than the cultivation of sole cropping.
Progressive Agriculture 31 (1): 45-55, 2020
Soil characterization and fertility assessment of char lands for increased cropping intensity and crop productivity
Authors: Ali MM , Tarafder MMA , Mohsin N , Haque MA 
Published: July 2020

A study was done for soil characterization and soil fertility assessment in Char Latif and Char Monpura of Bhola District to identify suitable crops for increasing cropping intensity and crop yields. The soils of Char Latif were almost silt loam to silty clay loam in texture. Soil pH values were slightly alkaline in reaction. The organic matter contents were low to medium (1.23-2.53%), the total N very low to low (0.08-0.22%), available P low to very low (4.67-14.1µg g-1 soil), available S low to very high (4.02-156.8 µg g-1 soil) and exchangeable K low to optimum (0.138-0.311%), exchangeable Ca and Na very high in Char Latif areas. At Char Monpura areas, the soils were silt loam to silty clay loam in texture. The soil pH was neutral to slightly alkaline in reaction. The organic matter contents of the soil were low to medium (0.21-2.60%) and the total N contents were very low to low (0.03-0.18%). Available P contents were very low (2.40-6.65 µg g-1 soil). Available S contents were low to very high (4.02-156.8 µg g-1 soil). Exchangeable K, Ca and Na contents were medium to optimum (0.20-0.48 me%), in desired level (4.54-9.07me%) and very high level (1.64-5.14me%), respectively. The soils of both char land areas were normally erosive having low fertility and low water holding capacity. Generally, farmers of char lands cultivated local varieties of crops. As a result, crop yields are low. High yielding profitable crops and crop cultivation measures could be recommended for both of the Char Latif and Char Monpura areas. The findings could help the government and the other organizations to take proper steps for improving livelihood of the char peoples by improved crop varieties and management practices. Hence, there is great opportunity to increase crop production through intensification of crop cultivation with the selection of appropriate crop varieties and soil management at char lands.
Progressive Agriculture 31 (1): 56-67, 2020
Single- and Multi-Objective Optimization of a Dual-Chamber Microbial Fuel Cell Operating in Continuous-Flow Mode at Steady State
Authors: Abu-Reesh Ibrahim M. 
Published: July 2020

Microbial fuel cells (MFCs) are a promising technology for bioenergy generation and wastewater treatment. Various parameters affect the performance of dual-chamber MFCs, such as substrate flow rate and concentration. Performance can be assessed by power density ( PD ), current density ( CD ) production, or substrate removal efficiency ( SRE ). In this study, a mathematical model-based optimization was used to optimize the performance of an MFC using single- and multi-objective optimization (MOO) methods. Matlab’s fmincon and fminimax functions were used to solve the nonlinear constrained equations for the single- and multi-objective optimization, respectively. The fminimax method minimizes the worst-case of the two conflicting objective functions. The single-objective optimization revealed that the maximum PD , CD , and SRE were 2.04 W/m2, 11.08 A/m2, and 73.6%, respectively. The substrate concentration and flow rate significantly impacted the performance of the MFC. Pareto-optimal solutions were generated using the weighted sum method for maximizing the two conflicting objectives of PD and CD in addition to PD and SRE simultaneously. The fminimax method for maximizing PD and CD showed that the compromise solution was to operate the MFC at maximum PD conditions. The model-based optimization proved to be a fast and low-cost optimization method for MFCs and it provided a better understanding of the factors affecting an MFC’s performance. The MOO provided Pareto-optimal solutions with multiple choices for practical applications depending on the purpose of using the MFCs.