Mitra Sains
Mitra Sains (E-ISSN: 2686-6579 ISSN: 2302-2027) is an open-access peer-reviewed scientific journal in agricultural sciences and agricultural economics. The Mitra Sains is published by Tadulako University in March and September. Mitra Sains invites high-quality research/review articles for publication in the coming issues. Focus: Mitra Sains is an interdisciplinary journal in agricultural sciences and economics. Scope: Mitra Sains welcomes original and significant contributions from across the field in plant science, agronomy, plant protection, forestry, animal husbandry, fishery, agribusiness, and agricultural social economics.
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<![CDATA[Pengaruh Metode Mind Map Terhadap Ketrampilan Berfikir Kreatif Dan Kemampuan Berkomunikasi Tentang Fisika Siswa Kelas VII SMP Negeri 1 Biromaru ]]>
<![CDATA[Salfina Salfina]]>;
<![CDATA[Amiruddin Hatibe]]>;
<![CDATA[Marungkil Pasaribu]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.88
<![CDATA[The objectives of the research are 1) to test the significant difference creative thinking between the students who were taught by using Mind Map Method and they who were taught by using Conventional Method on object change around us; and 2) to test the significant difference of communication ability of the students who were taught by using mind map method and those who were taught by using conventional method on object change around us. The design of the research is Quasi Experimental research design in which it employs purposive sampling design. The sample of the study is the grade VII C consisting of 32 students and the grade VII D consisting of 33 students of the 2014/2015 academic year. The data were collected by using observation check-list and test. The researcher analyzes data by using SPSS program. The result of the study indicates that the score t count> t table (3,50 > 1,998) and sig = 0,001 (0,001 < 0,05); it is found that there is the difference of thinking ability between the students who were taught by using creative thinking skill method and conventional method. Meanwhile, it is found that the result of the posttest on students’ communication skill so t count> t table (3,14 > 1,998) and sig = 0,003 (0,003 < 0,05). It is indicates that there is the difference in communication ability between the students who were taught by using mind map method and the students who were taught by using conventional method. Based on the result of study, it is stated that there is an effect of mind map method toward students’ creative thinking skill and students’ physics communication ability at grade VII student at SMP Negeri 1 Biromaru.]]>
<![CDATA[Perilaku Metakognisi Siswa Dalam Menyelesaikan Masalah Kimia ]]>
<![CDATA[Meylan Ratnawati]]>;
<![CDATA[Nurdin Rahman]]>;
<![CDATA[Siang Tandi Gonggo]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.90
<![CDATA[This study describes the metacognition behavior of students on problem solving in degree of acidity calculation. This research was conducted at SMAN 1 Pamona Utara and at SMA GKST 2 Pamona Puselemba. Research subjects were 6 students of class XII IPA determined based on the respondents test selection into high, middle and low categories. This study is a qualitative research. Research data were as test results, thinking-aloud transcripts, and interviews as well as the results of the inventory questionnaire metacognition activity. The data were described and tested using the triangulation method. Results of thinking-aloud data analysis showed that the high and the middle categories were able to assess the mistakes. The high category tend to monitor mistakes while making calculations. The middle category emphasized on parts of calculations to avoid mistakes and justify the calculations and the solutions. The middle category also tend to check the problem solving steps. The low category checked the answers. Results of the questionnaires showed that the average metacognition activity of the middle category was the highest, and the low category was the lowest. The lack of students' knowledge on the concepts and principles of the problem caused students could not solve the problem either. The highest level of students' metacognition in this study was the strategic use.]]>
<![CDATA[Pengaruh Urutan Pemberian Materi Pembelajaran (Sequenced) Dengan Model Fragmented dan Model Connected Terhadap Hasil Belajar Siswa Pada Konsep Vektor Di SMA Negeri 1 Palu ]]>
<![CDATA[Muhsina Muhsina]]>;
<![CDATA[I Komang Werdhiana]]>;
<![CDATA[Marungkil Pasaribu]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.104
<![CDATA[The present research is an experimental research studies about the effect of presenting sequenced learning material on the concept of vector through fragmented and connected learning model. The subject of the research consists of 30 students of grade XA who were treated with fragmented model and 30 students of grade XB who were treated with connected model. The data of the two groups of subject were analyzed by using t-test with 5% real level. The result of the experiment indicates that thitung (4,02) is out of acceptance area (2,66). The result indicates that there is the difference result of the students’ learning on concept of vector between those who taught by using fragmented and connected model. Quantitatively, the average score of the students who were treated by using fragmented model is 73, 56 and those who were treated by using connected model is 61,78, it then can be inferred that the fragmented learning model is more effective than connected model use to present the lesson.]]>
<![CDATA[Hubungan Gaya Belajar Dengan Keterampilan Berpikir Kritis Dan Kemampuan Kognitif Siswa Pada Mata Pelajaran Kimia di Kelas X SMKN 1 Bungku Tengah ]]>
<![CDATA[Nurbaeti Nurbaeti]]>;
<![CDATA[Siti Nuryanti]]>;
<![CDATA[Indarini Dwi Pursitasari]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.124
<![CDATA[This research aimed to describe correlation between: (1) learning style and critical thinking skill; (2) learning style and cognitive ability in chemistry subject; and (3) critical thinking skill and cognitive ability of students in chemistry subject at Class X of SMKN I Bungku Tengah. The population of the research was 48 students at Class X of SMKN I Bungku Tengah registered in 2013/2014 academic year. The sample of the research was the overall of the population member (saturated sample). The collecting data used questionnaire and multiple choice test. Data of the research were analyzed by using correlation and regression analyses. Based on the data analyses, it could be concluded that there were positive correlations between: (1) the learning style and the critical thinking skill; (2) the learning style and the cognitive ability; and (3) the critical thinking skill and the cognitive ability in chemistry subject of the students at Class X of SMKN IBungku Tengah.]]>
<![CDATA[Analisis Komparatif Pendapatan Usahatani Padi Sawah Peserta Program Dan Tanpa Program Pemberdayaan Petani Melalui Teknologi Dan Informasi Pertanian ]]>
<![CDATA[Muhammad Randhika]]>;
<![CDATA[Made Antara]]>;
<![CDATA[Rustam Abd Rauf]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.125
<![CDATA[The research aims were to analyze the incomes of wetland rice farming system under FEATI program and non-FEATI program in Malonas Village Damsol Sub District of Donggala District and to analyze the disparity of incomes betwen the farmers under the FEATI program and non-FEATI program in Malonas Village Damsol Sub District of Donggala District. The method used was survey in which samples were proportionally sampled. The research results showed that the average income generated from the wetland rice farming system in Malonas village Damsol Sub District of Donggala Distric were IDR 18.742.102,94 ha-1 planting season (PS)-1 and IDR 7.010.794,49 ha-1 PS-1 under the FEATI program and the non-FEATI program, respectively. The differences was IDR 11.731.308,45 ha-1PS-1 with the probability value of 0.001 <0.05 or tcounted = 8,16 > 1.98 at 95% confidence level. The production of wetland rice farming system under the FEATI program was 1767,47 kg ha-1PS-1 greater than that under the non-FEATI program with the probability value was 0.001 <0.05 or tcounted = 11,82 > 1.98 at 95% confidence level.]]>
<![CDATA[Profil Pengetahuan Konseptual Siswa Kelas VII SMP Dalam Menyelesaikan Soal Persamaan Linear Satu Variabel Berdasarkan Tingkat Kemampuan Matematika ]]>
<![CDATA[Wenny Elpriliana Suryanti]]>;
<![CDATA[Sudarman Sudarman]]>;
<![CDATA[Dasa Ismaimuza]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.126
<![CDATA[This research aimed to describe the profile of conceptual knowledge of seventh grade students Al-Azhar Palu of junior high school in solving linear equation-one variable (LEOV) problem. Subjects of the research were students from mathematics high ability. Data collection used mathematics achievement test, conceptual knowledge test, and interview protocol. Data of the research were analyzed by applying qualitative analysis. The result of data analysis in this research is: (1) there are by mistake in comprehending concept in classifying LEOV and non-LEOV;(2) can making a generalization by constructing a mathematical model from a story problem type; and (3)can determining equivalent equation forms, and remembering definition of order-1of LEOV and properties of LEOV.]]>
<![CDATA[Keyakinan Epistemologis Siswa Lintas Level Akademik Terhadap Fisika ]]>
<![CDATA[Widji Lestari]]>;
<![CDATA[Jusman Mansyur]]>;
<![CDATA[I Komang Werdiana]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.127
<![CDATA[This research applied qualitative research which used descriptive method in order to describe the general epistemological beliefs of middle school students in two schools with different academic levels. The subjects of this research were the eleventh graders of SMA Al-azhar Palu and six the ninth graders of SMP Al-azhar Palu. The selection of respondents and the collection data of epistemological beliefs using EBAPS (Epistemological Beliefs Assessment for Physics Science). Interviews were carried out to elicit students' epistemological beliefs information. Analysis showed that the two academic levels have the same beliefs on dimensional Structure of Scientific Knowledge (SSK), Nature of Knowing and Learning (NKL) and Real-Life Applicability (RLA), and have different beliefs on Evolving dimensions of Knowledge (EK) and Source of Ability to Learn (SAL).]]>
<![CDATA[Analisis Produksi Dan Pendapatan Pada Izin Usaha Industri Primer Hasil Hutan Kayu (IUIPHHK) Di Kota Palu Studi Kasus Pada PT. Tatehe Nusa Jaya ]]>
<![CDATA[Haryono Haryono]]>;
<![CDATA[Syukur Umar]]>;
<![CDATA[Erniwati Erniwati]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.128
<![CDATA[The objectives of this research were to: (1) know out the effect of production variable factors; raw materials (m³), labor, and production tools of wood processing. (2) to calculate the production income, and (3) to state the feasibility level of PT. Tatehe Nusa Jaya in relation to Timber Product Business Industry License in Palu City. This research was carried out for five months, from February to June 2014. The population was the duration of sawn timber processing activities at PT. Tatehe Nusa Jaya (36 months). The sample was taken monthly. Then sawn timber processing revenue was affected by the fixed costs, variable costs and revenues. Cobb-Douglass analysis production function was used to answer the problem statement of this research. This research uses qualitative descriptive design. The results of production function showed that coefficient determination was 0.828. It means that the model was effective to be applied since the ability to explain the Y factor in the changes of Xi variables (X1, X2, and X3) was 82.8% or high. Meanwhile, the remaining 17.2% was caused by external factors which was not observed in this research. The operating timber product business industry revenues of PT. Tatehe Nusa Jaya was profitable. The company's revenue was Rp. 31.772.648.018,-. Variable production factors influence the increase in operating revenues IUIPHHK PT. Tatehe Nusa Jaya. This high revenues was taken from the small ratio of total production cost in comparison to the total income. Thus economically good to run because the value of the level of feasibility is Rp. 13.74 and because the value of the RC ratio> 1. It means that the feasibility of company was 1: 13,74.]]>
<![CDATA[Studi Populasi Dan Habitat Anoa (Bubalus sp) di Kawasan Hutan Lindung Desa Sangginora Kabupaten Poso ]]>
<![CDATA[Reza Ariawan Ranuntu]]>;
<![CDATA[Sri Ningsih Mallombasang]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.129
<![CDATA[The research objective is to estimate and study the genaral picture of dwarf buffalo (Bubalus sp) in oder that their presence around can still be recorded and better managed in Sulawesi. Descriptive research method was used by applying line transect to observe population quadrat transect was used to analyze habitat composition. Based on footprints found, there were estimated that were about less that 12 adult, 8 teenagers and 5 young dwarf buffaloes around within 13 obrvation points with density of 1.23 dwarf buffaloes/km2 or around 1 – 2 per square kilometres. For habitat vegetaton, there were about 85 species function as supporting habitat and about 33 species as food sources. Laboratory analysis noted that soil texture on the sites are clay with salinity level of 0.72 µS/cm. In addition, it was recorded that the temperature during the morning time were about 140 C – 180 C, 180 C – 200 C during the noon time, and arond 200 C – 150 C during the evening time. To summarize, the population sze of dwarf buffalo can be conculded as low leading to extinction if illegal hunting and habitat destruction continuously occur.]]>
<![CDATA[Perkecambahan Dan Pertumbuhan Benih Pala(Myristica fragrans Houtt) Akibat Lama Perendaman Pada Atonik Dan Komposisi Media Tanam ]]>
<![CDATA[Tony Tony]]>;
<![CDATA[Bahrudin Bahrudin]]>;
<![CDATA[Iskandar Lapanjang]]>
<![CDATA[ Mitra Sains Vol 3 No 2 (2015): April ]]>
Publisher : <![CDATA[Universitas Tadulako ]]>
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DOI: 10.22487/mitrasains.v3i2.130
<![CDATA[This research aimed at determining the process of germination and growth of nutmeg seeds to obtain superior nutmeg seeds in Baolan Sub District of Tolitoli District. The research was conducted in two stages of experiments. The first stage involved soaking the seeds under different periods including with no soaking (A0), two hour soaking period (A1) and three hour soaking period (A2). This experiment used a Completely Randomized Design where each treatment had seven replicates. Greatest germination rate of 34.29% was found in the three hour soaking period after the seeds were allowed to sproud for six weeks. This was significantly different from the other two treatments under which treatments the germination rate was only 26.43%. At the second stage, the soaking period treatments were combined with various growing media including T1 (soil:sand:cow manure bokashi; v/v/v), T2 (soil:sand:cow manure bokashi; v/v/2v), and T3 (soil:sand:cow manure bokashi; v/v/3v) . The experiment was arranged in a Two Factorial Randomized Block Design where each treatments had four replicates. The average seedling height of 18.85 cm found in the A2T3 treatment 12 weeks after planting (WAP) was significantly higher than in the A1T2 and A0T1 under which treatments the heights were only 14.45 cm and 12.77 cm, respectively.]]>
