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Mitra Sains
Published by Universitas Tadulako
ISSN : 23022027     EISSN : 26866579     DOI : https://doi.org/10.22487/ms26866579
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
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.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 203 Documents
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Profil Regulasi Kognisi Siswa Smp Negeri 2 Palu Dalam Memecahkan Masalah Matematika Ditinjau Dari Gaya Kognitif Nur Afrianti Rudtin; Maxinus Djaeng; Dasa Ismaimuza
Mitra Sains Vol 5 No 4 (2017): Oktober
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v5i4.99

Abstract

This research is a qualitative research aimed to describe the profile of cognitive regulation of the students of VIII C class of SMP Negeri 2 Palu in solving system of equations in two variables viewed from cognitive style. The research subjects were one student belonged to independent field and another student belonged to dependent field. The grouping for obtaining the desired subjects was done by administering GEFT test. The research results show that: (1) in the planning stage, FI was not easily influenced by his environment so that he could convey the information that he knew and was asked to him and he could also develop the steps for solving problems, (2) in the problem solving stage in order to obtain results, FI executed the solving steps already planned, and checked the correctness of the solving steps by analyzing the conformity to the plan, sometimes the subject asked himself because he felt that probably the problems were not in line with the solving steps to be achieved, (3) in the stage of checking the correctness of the solution, FI firstly asked to himself for he felt that probably there might be something illogical, then he matched them manually in order to confirm the results obtained, and when observing his own ways of work, FI decided that the results he obtained were correct, (4) FD was easily influenced by his environment; thus, in the planning stage, he tried to interact with others first and only then he could convey the information that he knew and was asked to him, and he could develop the problem solving steps, (5) in the problem solving stage, FD executed the solving steps, and checked the correctness of the solving steps by analyzing the conformity to the plan, sometimes the subject asked himself because he felt that probably the solving steps were not in line with the solutions to be achieved, and (6) in the stage of checking the correctness of the solution, FD asked to himself for he felt that the solutions obtained were not in line with the objectives being asked, and when observing his own ways of work, FD remained confident with the results he obtained.
Profil Pemecahan Masalah Persamaan Linear Satu Variabel Siswa Climber Pada Kelas Vii Smp Negeri 3 Palu Padliani Padliani; Sudarman Bennu; Muh. Rizal
Mitra Sains Vol 5 No 4 (2017): Oktober
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v5i4.100

Abstract

This research aimed to describe the profil of students’ problem solving of one variable linear equations of the climber students’ in the grade VII of SMP Negeri 3 Palu. The research subject was gained by adversity response profile questionnaire to classify the type of student that type of adversity quotient climber, camper, and a quitter. Subjects used in this research only one student type of climber. The results of this research shows that: (1) understand the problem, students climber unyielding so as to identify and propose things that are known and questioned on the issue, (2) make a plan, students climber motivate yourself and not easily satisfied so as to propose a contingency plan that will be done to solve the problem, (3) carrying out the plan, students climber always trying and not give up so as to implement the plan as planned and the results obtained are correct, and (4) looking back, students climber is not so just believe in the truth of the results obtained, so the retest by linking it known denfan results.
Analisis Pemasaran Jagung Di Kecamatan Ulubongka Kabupaten Tojo Una-Una Rahmah I. Lihawa
Mitra Sains Vol 5 No 4 (2017): Oktober
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v5i4.101

Abstract

This research aims to determine the marketing channels, marketing margin, marketing efficiency and prices part. This research was conducted at Ulubongka district with sample of villages at Borneang and Bongka Makmur village. The locations were selected purposively, because these areas have the harvested area and the highest production at Ulubongka district. Each village samples was taken each 22 farmers. Numbers of merchants sampled were 5 people traders and 2 wholesalers. The analysis model used marketing margin analysis, marketing efficiency and prices part. The result showed two corn marketing channel at Ulubongka district. The smallest total marketing margin obtained on the marketing channel II. Corn marketing efficiency obtained on the marketing channel II was smaller than marketing channels I and part of the price obtained channel II greater than marketing channels I. The corn marketing channels at Ulubongka district efficient is a marketing channel II.
Analisis Produksi Padi Sawah Di Desa Kalawara Kecamatan Gumbasa Kabupaten Sigi Reny Reny
Mitra Sains Vol 5 No 4 (2017): Oktober
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v5i4.102

Abstract

The purpose of this study was to analyze the factors that affect the production of paddy rice farming in the village of Kalawara, the District of Gumbasa. The research was conducted in the village of Kalawara, District of Gumbasa, The Regency of Sigi with the consideration that the village is one of the largest rice using Mekongga rice seed. The population in this study are the farmers of paddy in the village numbering 169 people, by the determination of the sample, the number of respondents who were sampled as much as 20% of the total population of 169 farmers, in order to obtain a total sample of 34 farmers, respectively Mekongga seed as many as 18 farmers and other seed for 16 farmers. Based on the analysis using a model Production function Cobb-Douglas then obtained as follows: land area (X1), seeds (X2), urea (X3), fertilizer Phonska (X4), labor (X5),) and dummy use of seeds together (simultaneously) very significant effect on production or variable (Y), partially each variable (land, seed, fertilizer urea, fertilizer Phonska, labor, pesticides and dummy use of seeds effect on very significant effect on farm production of paddy in the village. The coefficient of determination (R2) of 0.960 indicates that the variation (rise and fall) farm production of paddy (Y) in the village can be explained by the independent variables (Xi) by 96%, while 4% were caused by other factors not included in the model, for example climatic factors and others.
Pengaruh Urutan Pemberian Materi Pembelajaran (Sequenced) Dengan Model Fragmented dan Model Connected Terhadap Hasil Belajar Siswa Pada Konsep Vektor Di SMA Negeri 1 Palu Muhsina Muhsina; I Komang Werdhiana; Marungkil Pasaribu
Mitra Sains Vol 3 No 2 (2015): April
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v3i2.104

Abstract

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.
Pengaruh Pembelajaran Kimia Melalui Inkuiri Terbimbing Dengan Pendekatan Saintifik Terhadap Hasil Belajar Dan Sikap Ilmiah Siswa Kelas X SMA Negeri 9 Palu Alamsyah Alamsyah; Baharuddin Hamzah; Solfarina Solfarina
Mitra Sains Vol 3 No 3 (2015): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v3i3.107

Abstract

It has been conducted a research where that aim is to describe the influence of the guided inquiry learning process with the scientific approach on the learning outcomes of and scientific attitudes of student. The population in this study is all students of class X SMA Negeri 9 Palu with academic year 2014/2015. The purposive sampling is used for sampling technique where class XA as an experimental class and class B as a control class. The research design used is the pretest-posttest control group design. Statistical test used is the Mann-Whitney U-Test. Based on the analysis of the calculation of the value of <g>, there is an improvement on learning outcomes of student in the experimental class compared to the control class. Based on statistical test, it is showed that Zcalculation<Ztable at significant level of 0.05, which means that the guided inquiry in chemistry learning through scientific approach gives a significant effect on learning outcomes and scientific attitudes of student in class X SMA Negeri 9 Palu on electrolyte and on-electrolytes solution topic.
Pengaruh Brain Based Learning Terhadap Keterampilan Berpikir Kritis Dan Hasil Belajar Siswa SMA Negeri 9 Palu Pada Materi Larutan Asam Basa Irma Irma; Suherman Suherman; Solfarina Solfarina
Mitra Sains Vol 3 No 3 (2015): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v3i3.109

Abstract

This research is about influence of brain based learning (BBL) toward critical thinking skill and student’s learning achievement at grade XI IPA SMA Negeri 9 Palu in acid base solution concept. The method is quasy experiment with design of pretest-posttest control group design. The technic of analysis used nonparametric statistical method mann whitney U-test. The sample of this research was class XI IPA 1 as experiment group and class XI IPA 3 as control, which choosen by purposive sampling technic. Analysed found, sig.2-tailed (0,000) < 0,05 has significant difference of critical thinking skill, learning achievement of experiment and control gruop. Result of Test <g> were improved of critical thinking skill and student’s learning achievement in experiment group more high than control group. The conclusion of this research was brain based learning (BBL) has influential to improved critical thinking skill, student’s learning skill at grade XI IPA SMA Negeri 9 Palu in acid base solution concept.
Pengaruh Model Pembelajaran Kooperatif Tipe Jigsaw Terhadap Hasil Belajar Kognitif Tentang Biologi Siswa Berkemampuan Akademik Tinggi Dan Berkemampuan Akademik Rendah Kelas XI Di SMA Negeri 1 Palu Lita Iriani; Hartono D. Mamu; Lilies N. Tangge
Mitra Sains Vol 3 No 3 (2015): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v3i3.110

Abstract

The research aimed at investigating the effect of model of cooperative learning Type jigsaw, academic ability of student, and interaction between learning model with the level of academic ability, on the cognitive learning outcomes of student. The method used is quasi-experimental pretest-posttest 2 x 2 factorial pattern. The research sample is determined with random sampling. The class selected as the research sample was class XI IPA 1, XI IPA 3, XI IPA 6, and XI IPA 7. The data was collected by using the cognitive achievement test typical the multiple choice Data obtained was the primary data, which directly analyzed descriptively and analysis of covariance. Results of the data analysis at significance level α = 0.05 is as follow: (1) the cognitive learning outcomes of student that were learned by the model of cooperative learning type jigsaw (mean = 82.22) was higher than the cognitive learning outcomes of student that were learned with the conventional learning (mean = 73.56) with a significance value of 0.000. (2) The cognitive learning outcomes of student who have the high level academic ability (mean = 85.10) was higher than the cognitive learning outcomes of student who have lower level of academic ability (mean = 72.36) with a significance value of 0.000. (3) There is an interaction effect between the model of cooperative learning with the academic abilitywith the significance value of 0.002 was obtained in this case. Based on the results of this research, it can be concluded that: The model of cooperative learning type jigsaw, the academic ability, and the interaction between the model of cooperative learning with the academic ability effect on the cognitive learning outcomes.
Analisis Spasial Dan Temporal Ruang Terbuka Hijau Di Kota Palu Ade Prasetya Saputra; Hamzari Hamzari; Sri Ningsih Mallombasang
Mitra Sains Vol 3 No 3 (2015): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v3i3.111

Abstract

Green open space ( RTH ) city from year to year has declined significantly , resulting in wide open space from year to year is narrowed . The purpose of this study was to identify available of green space in the city of Palu , to know necessity of green space based on width area and number of population in palu, and to formulate the direction of green space developing in Palu. The Methods that used in this research is Maximum Likelihood Classification (MLC) methods. The image that used was captured from landsat TM 7 year 2009 and 2013. Both processed with Arc GIS 10 and ER Mapper 12 software. The result from five category of land use/cover during 2009 and 2013 is built area increased 36 %, open land increase 74 %, Agricultural green space increase 10 %, other green space decrease 22 %, and water body decrease 40 %. Green open space in Palu needs to develop new concept of green open space, plant tree species that can absorb polution, formulate the direction of green open spaces developing, and make a rule of law about how to manage green open space developing in Palu City.
Pengaruh Faktor Sosial Ekonomi Keluarga Nelayan Terhadap Konsumsi Ikan Di Kecamatan Pasangkayu Kabupaten Mamuju Utara Rosdiani Rosdiani
Mitra Sains Vol 3 No 3 (2015): Juli
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v3i3.112

Abstract

This study aimed to find out the characteristics social economic fisherman families in Pasangkayu Subdistrict and analyze the effect of social economic factors (household income, the price of fish, the price of substitute goods, level of education, total of familiy responsibilities and the age of respondens) fisherman families toward fish consumption in Pasangkayu Subdistrict Mamuju Utara Regency. This study conducted in pasangkayu Subdistrict Mamuju Utara Regency West Sulawesi on June-August 2014. The total samples in this study were 74 families, selected by using proportional stratified random sampling method. The obtained data were analyzed using multiple linier regression analysis (SPSS versi 21) and tested with the classical assumption. Descriptif analysis using the average and percentage indicate that social economic factors of fiherman families has a strong category. Research result show that simultaneously social economic factors fisherman families significantly affect on fish consumption in Pasangkayu Subdistrict Mamuju Utara Regency, partially varialbe household income of fisherman families, fish price, chicken price, egg price, age of respondents and total of family responsibilities are significant effect on fish consumption in Pasangkayu Subdistrict Mamuju Utara Regency.

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