Subjects -> MATHEMATICS (Total: 1112 journals)
    - APPLIED MATHEMATICS (90 journals)
    - GEOMETRY AND TOPOLOGY (23 journals)
    - MATHEMATICS (818 journals)
    - MATHEMATICS (GENERAL) (45 journals)
    - NUMERICAL ANALYSIS (25 journals)

MATHEMATICS (818 journals)            First | 1 2 3 4 5     

Showing 401 - 538 of 538 Journals sorted alphabetically
Journal of Computational Physics : X     Open Access   (Followers: 1)
Journal of Computer Engineering, System and Science (CESS)     Open Access  
Journal of Contemporary Mathematical Analysis     Hybrid Journal  
Journal of Cryptology     Hybrid Journal   (Followers: 5)
Journal of Difference Equations and Applications     Hybrid Journal  
Journal of Differential Equations     Full-text available via subscription   (Followers: 1)
Journal of Discrete Algorithms     Hybrid Journal   (Followers: 4)
Journal of Discrete Mathematics     Open Access   (Followers: 1)
Journal of Dynamics and Differential Equations     Hybrid Journal  
Journal of Engineering Mathematics     Hybrid Journal   (Followers: 2)
Journal of Evolution Equations     Hybrid Journal  
Journal of Experimental Algorithmics     Full-text available via subscription   (Followers: 1)
Journal of Flood Risk Management     Hybrid Journal   (Followers: 14)
Journal of Formalized Reasoning     Open Access   (Followers: 2)
Journal of Function Spaces     Open Access  
Journal of Functional Analysis     Full-text available via subscription   (Followers: 2)
Journal of Geochemical Exploration     Hybrid Journal   (Followers: 1)
Journal of Geological Research     Open Access   (Followers: 1)
Journal of Geovisualization and Spatial Analysis     Hybrid Journal  
Journal of Global Optimization     Hybrid Journal   (Followers: 7)
Journal of Global Research in Mathematical Archives     Open Access   (Followers: 1)
Journal of Group Theory     Hybrid Journal   (Followers: 2)
Journal of Homotopy and Related Structures     Hybrid Journal  
Journal of Honai Math     Open Access  
Journal of Humanistic Mathematics     Open Access   (Followers: 1)
Journal of Hyperbolic Differential Equations     Hybrid Journal  
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Industrial Mathematics     Open Access   (Followers: 2)
Journal of Inequalities and Applications     Open Access  
Journal of Infrared, Millimeter and Terahertz Waves     Hybrid Journal   (Followers: 2)
Journal of Integrable Systems     Open Access   (Followers: 1)
Journal of K-Theory     Full-text available via subscription  
Journal of Knot Theory and Its Ramifications     Hybrid Journal   (Followers: 1)
Journal of Kufa for Mathematics and Computer     Open Access   (Followers: 1)
Journal of Liquid Chromatography & Related Technologies     Hybrid Journal   (Followers: 7)
Journal of Logical and Algebraic Methods in Programming     Hybrid Journal  
Journal of Manufacturing Systems     Full-text available via subscription   (Followers: 4)
Journal of Mathematical Analysis and Applications     Full-text available via subscription   (Followers: 5)
Journal of mathematical and computational science     Open Access   (Followers: 7)
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Mathematical Behavior     Hybrid Journal   (Followers: 3)
Journal of Mathematical Chemistry     Hybrid Journal   (Followers: 3)
Journal of Mathematical Cryptology     Hybrid Journal   (Followers: 1)
Journal of Mathematical Extension     Open Access   (Followers: 3)
Journal of Mathematical Finance     Open Access   (Followers: 9)
Journal of Mathematical Imaging and Vision     Hybrid Journal   (Followers: 6)
Journal of Mathematical Logic     Hybrid Journal   (Followers: 3)
Journal of Mathematical Modelling and Algorithms     Hybrid Journal   (Followers: 1)
Journal of Mathematical Neuroscience     Open Access   (Followers: 10)
Journal of Mathematical Sciences     Hybrid Journal  
Journal of Mathematical Sciences and Applications     Open Access   (Followers: 2)
Journal of Mathematical Sociology     Hybrid Journal   (Followers: 3)
Journal of Mathematics     Open Access  
Journal of Mathematics and Statistics     Open Access   (Followers: 8)
Journal of Mathematics and Statistics Studies     Open Access   (Followers: 4)
Journal of Mathematics and the Arts     Hybrid Journal   (Followers: 2)
Journal of Mathematics Education at Teachers College     Open Access   (Followers: 2)
Journal of Mathematics in Industry     Open Access  
Journal of Mathematics Research     Open Access   (Followers: 6)
Journal of Metallurgy     Open Access   (Followers: 8)
Journal of Modern Mathematics Frontier     Open Access  
Journal of Multidisciplinary Modeling and Optimization     Open Access  
Journal of Multivariate Analysis     Hybrid Journal   (Followers: 13)
Journal of Natural Sciences and Mathematics Research     Open Access  
Journal of Nonlinear Analysis and Optimization : Theory & Applications     Open Access   (Followers: 4)
Journal of Nonlinear Mathematical Physics     Hybrid Journal   (Followers: 1)
Journal of Nonlinear Science     Hybrid Journal   (Followers: 1)
Journal of Numerical Cognition     Open Access   (Followers: 1)
Journal of Numerical Mathematics     Hybrid Journal   (Followers: 2)
Journal of Optimization     Open Access   (Followers: 5)
Journal of Peridynamics and Nonlocal Modeling     Hybrid Journal  
Journal of Problem Solving     Open Access   (Followers: 2)
Journal of Progressive Research in Mathematics     Open Access   (Followers: 5)
Journal of Pseudo-Differential Operators and Applications     Hybrid Journal  
Journal of Pure and Applied Algebra     Full-text available via subscription   (Followers: 4)
Journal of Quantitative Analysis in Sports     Hybrid Journal   (Followers: 9)
Journal of Quantitative Linguistics     Hybrid Journal   (Followers: 6)
Journal of Scientific Computing     Hybrid Journal   (Followers: 18)
Journal of Scientific Research     Open Access  
Journal of Symbolic Computation     Hybrid Journal   (Followers: 1)
Journal of the Australian Mathematical Society     Full-text available via subscription  
Journal of the Egyptian Mathematical Society     Open Access  
Journal of the European Mathematical Society     Full-text available via subscription   (Followers: 1)
Journal of the Indian Mathematical Society     Hybrid Journal   (Followers: 1)
Journal of the Institute of Mathematics of Jussieu     Hybrid Journal  
Journal of the London Mathematical Society     Hybrid Journal   (Followers: 2)
Journal of the Nigerian Mathematical Society     Open Access   (Followers: 1)
Journal of Theoretical and Applied Physics     Open Access   (Followers: 8)
Journal of Topology and Analysis     Hybrid Journal  
Journal of Transport and Supply Chain Management     Open Access   (Followers: 16)
Journal of Turbulence     Hybrid Journal   (Followers: 9)
Journal of Uncertainty Analysis and Applications     Open Access   (Followers: 1)
Journal of Universal Mathematics     Open Access  
Journal of Urban Regeneration & Renewal     Full-text available via subscription   (Followers: 11)
JRAMathEdu : Journal of Research and Advances in Mathematics Education     Open Access   (Followers: 5)
JUMLAHKU : Jurnal Matematika Ilmiah STKIP Muhammadiyah Kuningan     Open Access   (Followers: 3)
JURING (Journal for Research in Mathematics Learning)     Open Access   (Followers: 1)
Jurnal Ilmiah AdMathEdu     Open Access  
Jurnal Matematika     Open Access   (Followers: 1)
Jurnal Matematika Integratif     Open Access  
Jurnal Matematika, Sains, Dan Teknologi     Open Access  
Jurnal Natural     Open Access  
Jurnal Pendidikan Matematika Raflesia     Open Access  
Jurnal Penelitian Pembelajaran Matematika Sekolah     Open Access  
Jurnal Penelitian Sains (JPS)     Open Access  
Jurnal Riset Pendidikan Matematika     Open Access  
Jurnal Sains Matematika dan Statistika     Open Access  
Jurnal Tadris Matematika     Open Access  
Jurnal Teknologi dan Sistem Komputer     Open Access  
Kontinu : Jurnal Penelitian Didaktik Matematika     Open Access   (Followers: 3)
Kreano, Jurnal Matematika Kreatif-Inovatif     Open Access   (Followers: 6)
Le Matematiche     Open Access  
Learning and Teaching Mathematics     Full-text available via subscription   (Followers: 7)
Lettera Matematica     Hybrid Journal  
Lietuvos Matematikos Rinkinys     Open Access   (Followers: 3)
Limits : Journal of Mathematics and Its Applications     Open Access   (Followers: 1)
Linear Algebra and its Applications     Full-text available via subscription   (Followers: 23)
Linear and Multilinear Algebra     Hybrid Journal   (Followers: 8)
Lithuanian Mathematical Journal     Hybrid Journal  
LMS Journal of Computation and Mathematics     Free  
Lobachevskii Journal of Mathematics     Open Access  
Logic and Analysis     Hybrid Journal   (Followers: 1)
Logic Journal of the IGPL     Hybrid Journal   (Followers: 1)
Logica Universalis     Hybrid Journal  
manuscripta mathematica     Hybrid Journal  
MaPan : Jurnal Matematika dan Pembelajaran     Open Access  
Marine Genomics     Hybrid Journal   (Followers: 2)
Matemáticas, Educación y Sociedad     Open Access  
Matematicheskie Zametki     Full-text available via subscription  
Matematika     Open Access  
Matematychni Studii     Open Access  
Mathematica Eterna     Open Access  
Mathematica Scandinavica     Full-text available via subscription   (Followers: 1)
Mathematica Slovaca     Hybrid Journal   (Followers: 1)
Mathematical and Computational Forestry & Natural-Resource Sciences     Free  
Mathematical Communications     Open Access  
Mathematical Computation     Open Access   (Followers: 1)
Mathematical Geosciences     Hybrid Journal   (Followers: 3)
Mathematical Journal of Interdisciplinary Sciences     Open Access   (Followers: 1)
Mathematical Medicine and Biology: A Journal of the IMA     Hybrid Journal   (Followers: 1)
Mathematical Methods in the Applied Sciences     Hybrid Journal   (Followers: 4)
Mathematical Methods of Statistics     Hybrid Journal   (Followers: 4)
Mathematical Modelling and Analysis     Open Access   (Followers: 1)
Mathematical Modelling in Civil Engineering     Open Access   (Followers: 5)
Mathematical Modelling of Natural Phenomena     Full-text available via subscription   (Followers: 1)
Mathematical Models and Methods in Applied Sciences     Hybrid Journal   (Followers: 2)
Mathematical Models in Engineering     Open Access   (Followers: 3)
Mathematical Notes     Hybrid Journal  
Mathematical Proceedings of the Cambridge Philosophical Society     Full-text available via subscription   (Followers: 2)
Mathematical Programming Computation     Hybrid Journal   (Followers: 3)
Mathematical Sciences     Open Access  
Mathematical Social Sciences     Hybrid Journal   (Followers: 1)
Mathematical Theory and Modeling     Open Access   (Followers: 13)
Mathematical Thinking and Learning     Hybrid Journal   (Followers: 3)
Mathematics and Statistics     Open Access   (Followers: 5)
Mathematics Education Forum Chitwan     Open Access   (Followers: 1)
Mathematics Education Journal     Open Access   (Followers: 2)
Mathematics Education Research Journal     Partially Free   (Followers: 18)
Mathematics in Science and Engineering     Full-text available via subscription  
Mathematics of Control, Signals, and Systems (MCSS)     Hybrid Journal   (Followers: 5)
Mathematics of Quantum and Nano Technologies     Open Access  
Mathématiques et sciences humaines     Open Access   (Followers: 6)
Mathematische Annalen     Hybrid Journal   (Followers: 1)
Mathematische Nachrichten     Hybrid Journal   (Followers: 1)
Mathematische Semesterberichte     Hybrid Journal  
Mathematische Zeitschrift     Hybrid Journal   (Followers: 1)
MathLAB Journal     Open Access   (Followers: 5)
MATI : Mathematical Aspects of Topological Indeces     Open Access  
MATICS     Open Access   (Followers: 2)
Matrix Science Mathematic     Open Access   (Followers: 1)
Measurement Science Review     Open Access   (Followers: 3)
Mediterranean Journal of Mathematics     Hybrid Journal  
Memetic Computing     Hybrid Journal  
Mendel : Soft Computing Journal     Open Access  
Metaheuristics     Hybrid Journal  
Metals and Materials International     Hybrid Journal  
Metascience     Hybrid Journal   (Followers: 1)
Metrology and Instruments / Метрологія та прилади     Open Access   (Followers: 1)
Milan Journal of Mathematics     Hybrid Journal  
Mitteilungen der DMV     Hybrid Journal  
MLQ- Mathematical Logic Quarterly     Hybrid Journal   (Followers: 1)
MONA : Matematik- og Naturfagsdidaktik     Hybrid Journal   (Followers: 5)
Monatshefte fur Mathematik     Hybrid Journal  
Moroccan Journal of Pure and Applied Analysis     Open Access   (Followers: 4)
Moscow University Mathematics Bulletin     Hybrid Journal  
MSOR Connections     Open Access   (Followers: 1)
Multiscale Modeling and Simulation     Hybrid Journal   (Followers: 3)
MUST : Journal of Mathematics Education, Science and Technology     Open Access   (Followers: 1)
Nagoya Mathematical Journal     Hybrid Journal  
Nano Research     Hybrid Journal   (Followers: 4)
Nanotechnologies in Russia     Hybrid Journal   (Followers: 1)
Natural Resource Modeling     Hybrid Journal   (Followers: 1)
New Mathematics and Natural Computation     Hybrid Journal  
Nonlinear Analysis : Modelling and Control     Open Access   (Followers: 1)
Nonlinear Analysis : Theory, Methods & Applications     Hybrid Journal   (Followers: 1)
Nonlinear Analysis: Hybrid Systems     Hybrid Journal  
Nonlinear Analysis: Real World Applications     Hybrid Journal   (Followers: 2)
Nonlinear Differential Equations and Applications NoDEA     Hybrid Journal  
Nonlinear Engineering     Open Access  
Nonlinear Oscillations     Hybrid Journal   (Followers: 1)

  First | 1 2 3 4 5     

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Journal Cover
Jurnal Matematika, Sains, Dan Teknologi
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1411-1942 - ISSN (Online) 2443-3586
Published by Universitas Terbuka Homepage  [2 journals]

    • Authors: Susilawati Susilawati, Susi Sulistiana
      Pages: 1 - 7
      Abstract: Banana is a tropical Indonesian fruit that its cultivation is supported by the Government of Indonesia. Ampyang banana is one of popular and widely consumed banana. Availability of quality seedling is a challenge for Ampyang banana farmer. In vitro multiplication of Ampyang banana is a promising alternative method of breeding. However, fast growth of Ampyang banana in in vitro culture is an obstacle in subculture periode. Paclobutrazol is a compound that can impede giberellin synthesis and reduce vegetative growth in plants. The aim of the study is investigate different paclobutrazol concentration (2.5; 5; 7.5 ppm) to in vitro culture of  Ampyang banana during plantlet phase to reduce growth of the plantlet. Observation was conducted during 2-10 weeks after planting. The result showed that there was no signifincant difference of leaf number among various concentration of placobutrazol which was given during 10 weeksafter planting. Meanwhile, the lowest number of new roots was found in the 2.5 ppm paclobutrazol concentration during 4 to 10 weeks after planting. The shortest root was found in the 7.5 ppm paclobutrazol concentration from 4  to 8 after planting. The lowest plant height was in the group of 5 ppm of placobutrazol concentration. Pisang merupakan komoditas buah tropika unggulan Indonesia yang pengembangannya didukung oleh pemerintah Indonesia. Pisang Ampyang merupakan salah satu pisang yang banyak digemari dan dikonsumsi. Ketersediaan bibit berkualitas merupakan salah satu tantangan bagi petani pisang Ampyang dalam pemenuhan permintaan pasar. Perbanyakan pisang Ampyang secara in vitro menjadikan salah satu alternatif menjanjikan untuk ketersediaan bibit dipasaran. Namun pertumbuhan pisang Ampyang yang relatif cepat menjadi kendala di dalam kultur in vitro yang berdampak pada seringnya periode subkultur. Paclobutrazol adalah salah satu senyawa yang memiliki aktifitas dapat menghambat sintesis giberelin pada tanaman dan mampu mengurangi pertumbuhan vegetatif pada tanaman. Tujuan dari penelitian ini adalah pemberian berbagai konsentrasi paclobutrazol (2,5 ppm; 5 ppm; 7,5 ppm) terhadap kultur in vitro pisang Ampyang pada fase planlet untuk menekan pertumbuhan planlet pisang Ampyang. Pengamatan dilakukan mulai 2-10 minggu setelah tanam (MST). Hasil penelitian menunjukkan bahwa pada jumlah daun tidak terdapat perbedaan yang nyata antar konsentrasi peclobutrazol yang diberikan selama 10 MST. Pada peubah pengamatan jumlah akar baru terendah terdapat pada konsentrasi 2,5 ppm pada 4 MST hingga 8 MST. Panjang akar menunjukkan akar terpendek terdapat pada 7,5 ppm dari 4 MST hingga 8 MST. Tinggi tanaman terendah terdapat pada pemberian paclobutrazol pada konsentrasi 5 ppm.
      PubDate: 2018-03-16
      Issue No: Vol. 19, No. 1 (2018)

    • Authors: Agung Prabowo, Zulfatul Mukarromah, Lisnawati Lisnawati, Pramono Sidi
      Pages: 8 - 24
      Abstract: Option is a financial instrument where price depends on the underlying stock price. The pricing of options, both selling options and purchase options, may use the CRR (Cox-Ross-Rubinstein) binomial model. Only two possible parameters were used that is u if the stock price rises and d when the stock price down. One of the elements that determine option prices is volatility. In the binomial model CRR volatility is constant. In fact, the financial market price of stocks fluctuates so that volatility also fluctuates. This article discusses volatility of fluctuating stock price movements by modeling it using binomial fuzzy with triangular curve representation. The analysis is carried out in relation to the existence of three interpretations of the triangular curve representation resulting in different degrees of membership. In addition to volatility, this study added the size or risk level ρ. As an illustration, this study used stock price movement data from PT. Antam (Persero) from August 2015 until July 2016. The results of one period obtained from the purchase price option for August 2016 with the largest volatility, medium and smallest respectively were Rp.143,43, Rp.95,49, and Rp.79,00. There was calculated at the risk level of  ρ = 90%. The degree of membership for each option price varies depending on the interpretation of the triangle curve representation. Opsi merupakan instrumen keuangan yang harganya tergantung pada harga saham yang mendasarinya. Penentuan harga opsi, baik opsi jual maupun opsi beli dapat menggunakan model binomial CRR (Cox-Ross-Rubinstein). Dalam model ini hanya dimungkinkan adanya dua parameter yaitu u apabila harga saham naik dan d pada saat harga saham turun. Salah satu unsur yang menentukan harga opsi adalah volatilitas. Dalam model binomial CRR digunakan volatilitas yang bersifat konstan. Padahal, pada pasar keuangan pergerakan harga saham mengalami fluktuasi sehingga volatilitas juga menjadi fluktuatif. Artikel ini membahas volatilitas pergerakan harga saham yang fluktuatif dengan memodelkannya menggunakan binomial fuzzy dengan representasi kurva segitiga. Analisis dilakukan terkait dengan adanya tiga interpretasi terhadap representasi kurva segitiga tersebut yang menghasilkan derajat keanggotaan yang berbeda. Selain volatilitas, dalam penelitian ini ditambahkan ukuran atau tingkat risiko ρ. Sebagai ilustrasi, digunakan data pergerakan harga saham PT. Antam (Persero) dari Agustus 2015 hingga Juli 2016. Hasil penelitian dengan perhitungan satu periode diperoleh hasil harga opsi beli untuk bulan Agustus 2016 dengan volatilitas terbesar, menengah, dan terkecil masing-masing adalah Rp.143,43, Rp.95,49, dan Rp.79,00 yang dihitung pada tingkat risiko ρ = 90%. Derajat keanggotaan untuk masing-masing harga opsi berbeda-beda tergantung pada interpretasi dari representasi kurva segitiga.
      PubDate: 2018-03-16
      Issue No: Vol. 19, No. 1 (2018)

    • Authors: Bulkis Bulkis
      Pages: 25 - 36
      Abstract: The objective of the research was to describe the factor of individual characteristic and communication activity, the communication barriers of rice farmers the analysing the relation between the factor of farmers individual characteristic and the communication barriers that felt by rice farmer in theOesao villageKupang district. Quantitative approach was chosen by the researcher because of the descriptions the explained the relation among variables in depth by the unit of analysis was rice farmer so that it can be show the clear relation between variables. There were two variables of research that observed, they were characteristic of farmer (X1), farmer communication activity (X2), communication barrier between agricultural extension and farmer (Y). The result of the research showed that 1) communication barriers most felt by the farmers were caringand solidarityfactor, then prejudice factor, difference of expectation and difference of needs.2) the experience of farmer was very significantly related with prejudice factor barrier, cared, solidarity then has significantly related with communication barrier of difference of needs. 3) Characteristic of farmer cosmopolite has significantly related negative with barriers factor of communication at prejudice, difference of needs, cared, and solidarity. Characteristic of the extent of farmer knowledge has significantly related negative with all of barriers factor of communication that felt by the rice farmer at Oesao villageKupang district. Communication activity was generally significant and very real with barriers of communication that felt by rice farmer at Oesao Kab. Kupang. Penelitian ini bertujuan untuk mendeskripsikan faktor karakteristik individu dan aktivitas komunikasi, hambatan-hambatan komunikasi yang ada pada petani padiserta menganalisis hubungan antara faktor karakteristik individu petani dan aktivitas komunikasi dengan hambatan komunikasi yang dirasakan petani padi di Desa Oesao Kab. Kupang. Pendekatan kuantitatif dipilih oleh peneliti karena melihat deskripsi serta menjelaskan hubungan antar variabel secara mendalam, dengan unit analisis adalah petani tanaman padi sehingga dapat memperlihatkan hubungan yang jelas antar variabel. Terdapat dua variabel penelitian yang diamati yaitu karakteristik petani (X1), aktivitas komunikasi petani(X2), hambatan komunikasi antara penyuluh dan petani(Y). Hasil penelitian yang diperoleh bahwa:1) Hambatan komunikasi yang paling dirasakan petani adalah pada faktor perhatian dan keakraban, disusul dengan faktor prasangka, perbedaan harapan dan perbedaan kebutuhan. 2) Pengalaman petani berhubungan sangat nyata pada faktor hambatan prasangka, perhatian dan keakraban serta berhubungan nyata dengan hambatan komunikasi faktor perbedaan kebutuhan. 3) Karakteristik kekosmopolitan petani berhubungan sangat nyata negatif dengan faktor hambatan‐hambatan komunikasi pada prasangka, perbedaan kebutuhan, perhatian dan keakraban. Karakteristik tingkat pengetahuan petani berhubungan sangat nyata negatif dengan seluruh faktor hambatan‐hambatan komunikasi yang dirasakan petani padi di Desa Oesao Kab. Kupang. Aktivitas komunikasi secara umum berhubungan nyata dan sangat nyata dengan hambatan‐hambatan komunikasi yang dirasakan petani padi di Desa Oesao Kab. Kupang.
      PubDate: 2018-03-16
      Issue No: Vol. 19, No. 1 (2018)

    • Authors: Yoyo Wiramiharja, Eddy Supriyono, Ernik Yuliana
      Pages: 37 - 45
      Abstract: Kumpeh Ulu District is a minapolitan area in Muaro Jambi Regency with main commodity of catfish. The purpose of this study was to analyze the sustainability status of ecological dimension of catfish culture in the development of minapolitan area. The study sites were some villages Kumpeh Ulu District: Pudak, Kota Karang, and Lopak Alai. The research design used quantitative approach. Data collection was done through questionnaires, interviews, and field observations. The population of this research is fishers in Kumpeh Ulu District, and the respondents are 48 fishers. Respondents were determined randomly (simple random sampling). Data were analysed using multidimensional scaling (MDS) with the Rap-Patin device has been modified from the RAPFISH program. The result of analysis to nine attributes obtained by index value is 55,40 and the most sensitive attribute is aquaculture waste processing. The sustainability status of the resulting ecological dimension is "sufficiently sustainable". Improvement of index value and sustainability status conducted by increasing the capacity of the aquaculture waste treatment. Kecamatan Kumpeh Ulu merupakan kawasan minapolitan di Kabupaten Muaro Jambi dengan komoditas utama ikan patin. Penelitian ini bertujuan menganalisis status keberlanjutan dimensi ekologi budidaya ikan patin dalam pengembangan kawasan minapolitan. Lokasi penelitian di Desa Pudak, Kota Karang, dan Lopak Alai. Rancangan penelitian menggunakan pendekatan kuantitatif. Pengumpulan data dilakukan melalui kuesioner, wawancara, dan observasi lapangan. Populasi penelitian adalah pembudidaya di Kecamatan Kumpeh Ulu. Responden ditentukan secara acak (simple random sampling),  yang berjumlah 48 orang. Analisis data menggunakan multidimensional scaling (MDS) dengan perangkat Rap-Patin, hasil modifikasi dari program RAPFISH. Hasil analisis terhadap sembilan atribut diperoleh nilai indeks sebesar 55,40 dan atribut yang paling sensitif adalah pengolahan limbah budidaya. Status keberlanjutan dimensi ekologi yang dihasilkan adalah “cukup berkelanjutan”. Perbaikan nilai indeks dan status keberlanjutan dilakukan dengan peningkatan kapasitas pengolahan limbah budidaya.
      PubDate: 2018-03-16
      Issue No: Vol. 19, No. 1 (2018)

    • Authors: Hulaifi Hulaifi
      Pages: 46 - 56
      Abstract: Economic diversity is a detailed description of fishery business that conducted by an individual or business entity to get some profit by analyzing economically and financially as well as the stability of fishing effort against natural risks and the dynamics of economic also technical change of business. The purpose of this research is to analyze the economic diversity of fishing effort by fisherman who using motor boats in Tanjung Luar, East Lombok, West Nusa Tenggara. The data analysis conducted in the form of analysis economic diversity of fishing business using motor boats. The parameters of economic analysis of the fishing effort business using 3 main criteria and 2 additional criteria. The 3 main criteria are Net Present Value (NPV), Internal Rate of Return (IRR), Net Benefit/Cost Ratio (NB/CR). While 2 additional criteria are Payback Period (PP), and Profitability Ratio (PR). The result of this research is fishing business based on the result of economic diversity criteria such as (NPV, IRR, Net B / C Ratio, Profitability Ratio and Payback Period) and the financing sensitivity of fishing vessels by boat is still feasible to be developed, then to obtain optimal benefits the fishermen are expected to increase the size of boats, technology, professional human resources and the addition of machine power used, so that fishermen can operate properly in the waters ZEE is further and deeper. The recommendation from the above fishing effort also need support from other aspect such as legality aspect, fishery fish farming, technical policy from local government and optimum condition at various allocations. Keragaan ekonomi merupakan suatu gambaran secara detail usaha perikanan, yang dilakukan oleh perorangan atau badan usaha untuk mencari keuntungan, dengan menganalisis secara ekonomi dan finansial, serta kestabilan usaha penangkapan ikan tersebut terhadap risiko alam dan kedinamisan perubahan ekonomi dan teknis usaha. Tujuan dari penelitian ini yakni menganalisis keragaan ekonomi usaha penangkapan ikan oleh nelayan kapal motor Tanjung Luar Kabupaten Lombok Timur. Analisis data yang dilakukan berupa analisis keragaan ekonomi usaha penangkapan ikan pada kapal motor. Parameter analisis keragaan ekonomi usaha penangkapan ikan menggunakan 3 kriteria utama dan 2 kriteria tambahan, ketiga kriteria utama investasi tersebut adalah Net Present Value (NPV), Internal Rate of Return (IRR), Net Benefit/Cost Ratio (N B/C R), sedangkan 2 kriteria tambahan adalah Payback Period (PP) dan Profitability Ratio (PR). Hasil dari penelitian ini yakni usaha penangkapan ikan berdasarkan hasil kriteria keragaan ekonomi seperti (NPV, IRR, net B/C ratio, profitability ratio dan payback period) dan sensitivitas usaha secara finansial, usaha penangkapan ikan oleh nelayan kapal motor masih layak dikembangkan, dan untuk mendapatkan keuntungan yang optimal, maka nelayan diharapkan untuk menambah ukuran kapal, teknologi, SDM yang profesional dan penambahan kekuatan mesin yang dipergunakan, agar nelayan dapat beroperasi dengan layak di perairan ZEE yang lebih jauh dan lebih dalam. Rekomendasi dari kegiatan upaya penangkapan tersebut di atas, perlu dukungan dari aspek lainnya seperti aspek legalitas, tataniaga ikan yang menguntungkan nelayan, kebijakan teknis dari pemerintah setempat serta tercapainya kondisi optimum pada berbagai alokasi.
      PubDate: 2018-03-16
      Issue No: Vol. 19, No. 1 (2018)

    • Authors: Meitha M Kaihatu
      Pages: 57 - 71
      Abstract: Maluku Tengah District have the potential fisheries resources. But the contribution of fishery against Gross Regional Domestic Product (GRDP) only of 6.20%. In general, this research aims to identify and analyze the contribution of fisheries sector in the economy of the Maluku Tengah district, knowing the level of the base, and analyze the fishery economic typology. The methods used are secondary data analysis. Data analysis is an analysis of Shift Share analysis, Location Quotient (LQ), and analysis of the Klassen Typology. The calculation of the value of the contribution, the value of LQ, typology of economic sector of fisheries in Maluku Tengah district obtained the results that the contribution of fishery on the basis of prevailing prices and constant prices put the fishery on the order/rank fifth and sixth in the achieving of GRDP, the sector of fisheries in Maluku Tengah district is not a sector basis with patterns and economic structures that are growing but are at a condition relative's left behind. There are five sub-districts that became a priority and need to be developed/improved, among others: Banda, Tehoru, Salahutu, Leihitu, and Seram Utara. Kabupaten Maluku Tengah memiliki potensi sumberdaya perikanan yang cukup besar. Namun sumbangan sektor perikanan terhadap Produk Domestik Regional Bruto (PDRB) hanya sebesar 6,20%. Secara umum penelitian ini bertujuan untuk mengidentifikasi dan menganalisis kontribusi sektor perikanan dalam perekonomian wilayah Kabupaten Maluku Tengah, mengetahui tingkat basis, menganalisis tipologi ekonomi sektor perikanan.Metode yang digunakan adalah analisis data sekunder. Analisis data yang digunakan adalah analisis Shift Share, analisis Location Quotient (LQ), dan Analisis Tipologi Klassen. Perhitungan nilai kontribusi, nilai LQ, tipologi ekonomi sektor perikanan di Kabupaten Maluku Tengah diperoleh hasil bahwa kontribusi sektor perikanan atas dasar harga berlaku dan harga konstan menempatkan sektor perikanan pada urutan/peringkat kelima dan keenam dalam pembentukan PDRB, sektor perikanan di Kabupaten Maluku Tengah bukan merupakan sektor basis dengan pola dan struktur ekonomi yang sedang bertumbuh namun berada pada kondisi relatif tertinggal. Terdapat lima kecamatan yang menjadi prioritas dan perlu dikembangkan/ditingkatkan antara lain: Banda, Tehoru, Salahutu, Leihitu, dan Seram Utara.
      PubDate: 2018-03-16
      Issue No: Vol. 19, No. 1 (2018)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762

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