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Mitra Sains
Published by Universitas Tadulako
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 140 Documents
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PENGARUH MODEL PEMBELAJARAN INQUIRI MELALUI KETERAMPILAN PROSES TERHADAP HASIL BELAJAR IPA DI KELAS IV SDN MODEL TERPADU MADANI PALU Maroangi, Yane
Mitra Sains Vol 3, No 1 (2015)
Publisher : Tadulako University

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Abstract

The major problem of this research was that any students had under school minimum standard of mastery learning on their daily exam of Science concepts. The school minimum standard of mastery learning was 75%. Therefore, experimental research was conducted with the aim of implementation of learning method through skills process to improve learning outcomes of Science on students class IV at SDN Model Terpadu Madani Palu. Learning was focused on the integrated thematic learning through scientific approach and authentic assessment recommended by Curriculum 2013. The instruments were learning plans including learning scenarios, teacher and student activities observation sheets, and pretest and posttest. Results of the data analysis showed that learning by inquiry method through skills process improved an average posttest score to 6.15, while the learning mastery reached up 24.24%. The authentic assessment as the characteristic of scientific assessment on integrated science had an average attitude 3.30 (start developing) with the percentage average 82.72%. Teacher activities implemented reached an average 4.95 with the percentage average implemented 99.16% or very good implementation, and activities of 24 students implemented reached an average 4.69 with the percentage average implemented 93.89% or very good implementation. It can be concluded that the application of inquiry learning model through skills process improved the learning outcomes of Science through integrated thematic and authentic assessment approaches. Keywords: Inquiry Method through Skills Process, Student Learning Outcomes
KARAKTERISASI PROFIL ASAM AMINO DAN KADAR PROTEIN ABON IKAN TONGKOL (EUTHYNNUS AFFINIS) PADA BERBAGAI LAMA PENGGORENGAN Renol, Renol; Gobel, Minarny; Nilawati, Jusri
Mitra Sains Vol 6, No 1 (2018)
Publisher : Tadulako University

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Abstract

The purposes of this study were to determine protein content and amino acid profile of shredded tuna from various old frying and to utilize byproduct of shredded fish oil into products that are rich in proteins and amino acids.  The method used in this study was an experimental study with a completely randomized design (CRD) for protein content, to analyze the differences in the old frying pan 30 minutes, 35 minutes, 40 minutes and 45 minutes.  Then testing the amino acid profile and  protein  content.  Results  showed  that  the longer  friying  period,  the lower  protein contents.  The highest protein concut (29, 84%) resulted from a frying period of  30 minutes while the lowest (25.60%) resulted from a frying period of 45 minutes. Amino acid composition of shredded tuna increased with the frying period, except in histidine and lysine.
PENERAPAN PEMBELAJARAN IPA TERPADU TIPE CONNECTED DALAM MENINGKATKAN MOTIVASI DAN HASIL BELAJAR SISWA TENTANG MATERI SISTEM PEREDARAN DARAH MANUSIA DI KELAS VIII A SMP NEGERI 17 PALU Muchsen, Hadijah; Tellu, Andi Tanra; Tangge, Lilies N.
Mitra Sains Vol 6, No 3 (2018)
Publisher : Tadulako University

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Abstract

This study aimed to improve students? learning motivation and learning achievement on the topic of human circulatory system of grade VIIIA at SMP Negeri 17 Palu.  The method implemented in this study was classroom action research, which comprised of four stages: planning, implementation, observation, and reflection.  The techniques of data collection were done through the observations on teacher?s activity, observations on students? activity, questionnaire and learning achievement test. The technique of data analysis on the teacher and students? activities were done through qualitative analyses while analyses on students? learning achievement were done through individual learning mastery formula and classical learning mastery formula. The result of analyses showed that the students? activity in cycle I was 66% which was categorized as good and in cycle II they reached up to 85% with a very good category, thus it proved that there was an improvement of 19%. The teaching activity of the teacher was in good category which rated at 73% and then was categorized as very good with the value of 96% in cycle II, thus proved that there was a 23% of enhancement. The students? motivation level in cycle I showed the value of 3,43% then increased up to 4,48% in cycle II. The improvement on students? learning achievement was identified from the accomplishment of learning mastery at the pre-treatment session which was, the individual learning mastery was achieved by 14 students (44%) from the total of 32 students, then in cycle I the number increased to 20 students (63%) and finally reached 29 students ( 91%) in cycle II. Based on the result of analyses, subsequently it was explained that the classical learning mastery has been accomplished.  Therefore, the implementation of the integrated science learning type connected could improve students? learning motivation and learning achievement on the topic of human circulatory system of grade VIII A at SMP Negeri 17 Palu.
THREE-DIMENSIONAL MODEL FOR COHESIVE SEDIMENT TRANSORT IN ESTUARY OF PALU RIVER Lutfi, Mohammad
Mitra Sains Vol 3, No 1 (2015)
Publisher : Tadulako University

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Abstract

Penelitian ini bertujuan untuk mengkaji dinamika transpor sedimen di Estuari Sungai Palu yang memiliki batimetri curam dan perairan yang dangkal di muara.  Simulasi model hidrodinamika dan transpor sedimen dilakukan dengan menggunakan model tiga dimensi ECOMSED yang dibangun oleh HydroQual, Inc., (2002). Simulasi dilakukan dengan menggunakan gaya pembangkit debit sungai dan pasang surut. Hasil simulasi pola arus pada penampang horizontal pada setiap kondisi pasang surut dominan bergerak ke luar teluk, pada penampang vertikal, saat elevasi pasang tertinggi arus bergerak memasuki teluk pada lapisan paling bawah dengan kecepatan arus yang relatif kecil. Perhitungan elevasi permukaan dan kecepatan arus pada penampang vertikal memperlihatkan kesesuaian yang baik dengan data sekunder dan DISHIDROS dan observasi arus. Hasil simulasi transpor sedimen menunjukkan bahwa konsentrasi sedimen pada penampang horizontal dan vertikal dominan dipengaruhi oleh debit sungai dibandingkan dengan pengaruh pasang surut. Kata Kunci: ECOMSED, Estuari, Kohesif, Palu, dan Sedimen.
PENGARUH PENGETAHUAN AWAL, KECERDASAN EMOSIONAL, DAN MOTIVASI BELAJAR TERHADAP HASIL BELAJAR IPA SISWA KELAS VIII SMP NEGERI 3 PARIGI Payung, Lilyanti M.; Ramadhan, Achmad; Budiarsa, I Made
Mitra Sains Vol 6, No 2 (2018)
Publisher : Tadulako University

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Abstract

The aimed of this Research to describe the effect of: (1) Students?s prior knowledge toward the science achievement; (2) emotional quotient toward the science achievement; (3) learning motivation toward the science achievement; and (4) prior knowledge, emotional quotient, and learning motivation toward the science achivement at class VIII of SMPN 3 Parigi. The population of the research was the students at class VIII of SMPN 3 Parigi registered in 2014/2015, consisted of 50 students. The sample of the the research was overall of the population member (saturated sample). The collecting data used multiple choice test to measure the student?s prior knowledge and questionnaire to measure emotional quetiont and student?s learning motivation. The data were analyzed by using double linear regression analyses with SPSS-17.  The research findings indicated that there were significant effect between (1) prior knowledge toward the science achievement, (2) emotional quotient toward the science achievement, (3) learning motivation toward science achievement, (4) prior knowledge, emotional quotient, and learning motivation toward the science achivement at class VIII of SMPN 3 Parigi.
PEMBELAJARAN DIRECT INSTRUCTION BERBASIS ANIMASI TERHADAP KONSEPSI SISWA MATERI IKATAN KIMIA KELAS X SMAN 1 DONDO KABUPATEN TOLITOLI Hasanah, Uswatun
Mitra Sains Vol 5, No 1 (2017)
Publisher : Tadulako University

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Abstract

Uncomplete assessing of materials abstract in learning of chemistry will lead to students on experiencing misconceptions as a result of the wrong internalization. This study aimed to analyze the positive effect and significance of the direct instruction learning based on animation to wards students? conceptions of chemical bonding in the Grade X at SMAN 1 Dondo Tolitoli. This study applied a quasi-experimental method with one group pretest-posttest design. Samples were 29 students determined by purposive sampling. The independent variable in this studywas the direct instruction learning, while the dependent variable was the students' conceptions. The data acquisition instrument was in the form of a diagnostic test consisted of 20 multiple-choice questions and reasons using Certainty of Response Index (CRI). Data was analyzed using t-test two sample pairs. Hypothesis test results obtained ?taccount (-16.37) <-ttable (-2.05) at significance level of 5%. This study concluded that there is a significant effect positively of direct instruction learning based onanimation to improvestudents? conceptions in the Grade X at SMAN 1 Dondo Tolitoli, with the effect size d = 2.8 or with a relatively large level of effectiveness.
ANALISIS KOMPARATIF PENDAPATAN USAHATANI PADI SAWAH PESERTA PROGRAM DAN TANPA PROGRAM PEMBERDAYAAN PETANI MELALUI TEKNOLOGI DAN INFORMASI PERTANIAN Randhika, Muhammad
Mitra Sains Vol 3, No 2 (2015)
Publisher : Tadulako University

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Abstract

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. Keyword: FEATI Program, Production, Income
KAJIAN BERBAGAI LAMA PENYIMPANAN ENTRES TERHADAP HASIL SAMBUNG SAMPIN GKAKAO (THEOBROMA CACAO L.) KLON SULAWESI Larekeng, Yuldanto
Mitra Sains Vol 5, No 1 (2017)
Publisher : Tadulako University

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Abstract

The purpose of this research was to determine the effect of scionsstored under various time periods on side-cleft grafting results at cacao plant.  The research used a Randomized Block design in which five storage period treatments were applied including no period of storage (control), 3 d, 6 d, 9 d, and 12 d storage periodsafter scion cutting time.  Each treatment was replicated five times resulting in 25 experimental units.  Variables observed were the percentage of living graftings, number of buds, length of buds and total leaf number of scions.  The research results showed that under 9 d and 12 d storage periods after scion cutting time, the percentage of living graftings was 53.59% and 36.41%, respectively, while much higher percentage were found in the control, 3 d, and 6 d treatments which were 79.38%, 79.38% and 70.78%, respectively.  The control, 3 d and 6 d storage period treatments were significantly affected the percentage of living scion and bud length at 30 d and 45 d after grafting.  Scions can be stored up to 6 d after cutting which support a well growth of side-cleft grafting cacao.
PERKECAMBAHAN DAN PERTUMBUHAN BENIH PALA (MYRISTICA FRAGRANS HOUTT)AKIBAT LAMA PERENDAMAN PADA ATONIK DAN KOMPOSISI MEDIA TANAM Tony, Tony
Mitra Sains Vol 3, No 2 (2015)
Publisher : Tadulako University

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Abstract

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. Keywords: Atonic, growing media, and nutmeg seed.
EFISIENSI PENGGUNAAN INPUT PRODUKSI KAKAO DI DESA DOLAGO KECAMATAN PARIGI SELATAN KABUPETEN PARIGI MOUTONG Sarini, Sarini
Mitra Sains Vol 5, No 2 (2017)
Publisher : Tadulako University

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Abstract

Central Sulawesi Province especially Parigi Moutong district, the majority of the population lives on farming, so to obtain optimal production requires the use of efficient input. The purpose of this research is to determine the effect of cocoa production inputs (the number of trees in production (X1), Urea fertilizer (X2), NPK fertilizer (X3) and labor (X4) that affecting the level of cocoa production efficiency. The respondent was selected through Simple Random Sampling that obtained 35 out of 350 people of total population. The analysis used is Multiple Linear Regression using Cobb-Douglass and Efficiency Analysis. The results of F-test show that variable the number of cocoa trees produced (X1), Urea fertilizer (X2), NPK fertilizer (X3) and labor (X4) simultaneously affect the cocoa production at Dolago Village.  The result of test-t show that variable of the number of cocoa trees produces (X1), Urea fertilizer (X2), NPK fertilizer (X3) and labor (X4) affecting the production of cocoa at Dolago Village. The results of the efficiency analysis show that the value of variable efficiency (The number of trees in production (X1) 0.26<1 it means no need the addition of cocoa trees, the value of the variable urea fertilizer efficiency (X2) 1.24>1 it means not efficient, need the addition of urea fertilizer in accordance with a balanced dose, the value of the variable NPK fertilizer (X3) 463.8>1 it means that the use of input NPK fertilizer not efficient so that need increasing doses of NPK fertilizer in accordance with the dose of balanced and the value of the variable efficiency of labor (X4) 0.066<1 it means not efficient because the use is excessive so farmers had to reduce the use of labor on cocoa farms at Dolago village, South Parigi sub district. 

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