Mitra Sains (E-Journal)
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Profil Berpikir Kritis Siswa SMP Dalam Pemecahan Masalah Matematika Ditinjau dari Gaya Kognitif
Full text linkThe objective of this qualitative research is to find out the description of the critical thinking profile of SMP students in solving mathematic problems in terms of cognitive style. To achieve the objective of this research used Group Embedded Figures Test (GEFT) by dividing students into field dependent and field independent cognitive style, mathematic problem, interview and observation. The result of this research shows that: (1) understanding the problem, SAi and SMd are able to identify, collect and analyse the given facts and information clearly and logicaly, (2) make a plan, SAi dan SMd are able to devine the alternative solution in order to solve the problem (3) carrying out the problem, SAi is able to use the alternative problem solution based on his plan systematically; meanwhile, SMd still finds it difficult to use the alternative problem solution based on his implementation plan not systematically. and (4) in the last step, SAi is able to evaluate the obtained result relevantly. Furthermore, he also can give clear argument in testing the obtained result. Whereas, SMd is not able to evaluate the obtained result relevantly, so he can not the given in testing the obtained result.  
Penggunaan Level Energi Dan Protein Yang Berbeda Terhadap Efisiensi Pakan, Pendapatan, Dan Income Over Feed And Chick Cost Pada Ayam Kampung Super Fase Pertumbuhan
Full text linkThe aim of study is to determine the optimal combination between energy and protein levels on feed efficiency, income and (IOFCC) Income Over Feed and Chick Cost of growth phase of super local chiken. The study was conducted in Kawatuna Village, Mantikulore Sub-district, Palu from April 17th to July 17th , 2017. This study used 192 old 1 Day Old Chick (DOC) super local chicken and designed in a Completely Randomized Design (CRD) within factorial design with two factors. The first factor is the metabolic energy consisted of two levels i.e EM1 (2800 kcal / kg) and EM2 (3000 kcal / kg). The second factor is four levels of protein ration ie P1 (18%); P2 (19%); P3 (20%); and P4 (21%). These two factors obtained 8 of treatment combination and repeated 4 times, so there are 32 experiment units. The variables observed were feed efficiency, income, and income over feed and chick cost. The analysis of variance result showed that the interaction between energy and protein produce no significant (P> 0,05) effect to all observation variables. Moreover energy and protein factor also produced no significant (P> 0,05). However a combination between 2800 kcal/kg ME and 18% protein is recommended as optimum diet formulation
Profil Pemecahan Masalah Persamaan Linear Satu Variabel Siswa Climber Pada Kelas VII SMP Negeri 3 Palu
Full text linkThis 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
Model Penalaran Matematika Formal Siswa Dalam Memecahkan Masalah Fisika
Full text linkThis research is qualitative used descriptive method for analyzing the use of formal mathematics reasoning in solving physics problems. Subjects of the research were nine students of SMA Al-Azhar Palu which consisted of three categories in ability, i.e: high, moderate and low category. Research instruments consisted of respondent test selection and interview protocol. Data collection was carried out through recording (by handycame) on thinking-aloud and interview activities. based on data analysis, it could be stated that obtained formal mathematics reasoning includes completeness and repetition in reasoning. It is needed development of learning that considers the important of the use formal mathematics reasoning as framework for evaluating a progress of student’s problem solving
Pertumbuhan Dan Hasil Tanaman Padi Sawah (Oryza Sativa L.) Pada Duavarietas Dan Jarak Tanam Di Kecamatan Palolo Kabupaten Sigi
Full text linkThe research aims to examine the interaction between varieties and plant spacing of rice and the growth and yield of rice crops with different varieties and different plant spacing. This research arranged in two factors of randomized block design. The first factor was the treatment of two varieties (V) consist of: V1 = Cisantana Varieties,V2 = Ciherang Varieties. The second factor was treatment of plant spacing (J), consist of : J1 = 20x20 cm, J2 = 20x25 cm, J3 = 20x30 cm and J4 = 20x35 cm. The result of this research shows that the interaction between ciherang varieties with plant spacing of 20 x 35 cm given the highest number of rice plants tillers 24.33 stems/clumps, and cisantana varieties with plant spacing of 20 x 25 cm given the highest number of rice plants tillers 22,67 stems/clumps at 75 Days After Planting (DAP). The interaction between ciherang varieties with plant spacing 20x25 cm produce dry grain weight 6.37 tons/ha. While cisantana varieties with plant spacing of 20 x 35 cm produce dry grain weight 6.22 tons/ha. Ciherang varieties provide growth (plant height, number of leaves at 30, 45, 60 and 75 DAP, and number of productive tillers) better than cisantana varieties, and 20 x 25 cm plant spacing gave better growth and yield of rice than other plant spacing
Strategi Pemasaran Jagung Di Kecamatan Palolo Kabupaten Sigi
Full text linkThis research aims to determine alternative marketing strategy must be established by a corn farmer in Palolo District, of Sigi. The population in this study is a corn farmer who lives in the village and the village Kapiroe, Bobo Palolo subdistrict. Given the purpose of this study focus on determining the marketing strategy must be established by a corn farmer in the District of Palolo, then the sample is limited to only six farmers, both located in the village of Bobo and villages Kapiroe, 8 traders, 1 person head of agricultural Sigi and 1 sub-district agricultural extension Palolo, so that the total number of samples that follow FGD process is as many as 16 people. Data were obtained through: observation, interviews, focus group discussion (FGD). Data were analyzed with SWOT analysis. SWOT analysis of marketing corn, factors Strength (Strengths) either: (a) The layout of the districts Palolo located, (b) high levels of production and productivity of farming corn, (c) A large number of farmers who are farming, (d) the potential institutional farmer level and (e) Agroclimate very appropriate. The factors of existing opportunities, including: (a) The opening of the market to sell the commodity corn, (b) There is support from the Department of Agriculture Sigi, (c) The high demand and the price level of corn for export commodities, (d) Determination of corn as the leading commodity Subdistrict Palolo, and (e) the development of dry corn grain prices are likely to increase. The results of the SWOT matrix marketing of this maize set "SO Strategy", as a key strategy to get attention, which is to harness the power factor possessed for available opportunities. Based on the resulting strategy of SWOT analysis, the activities proposed to be undertaken, including: (1) Improving the institutional role of the farmer in the marketing units of corn to take advantage of the opening of the market, (2) Utilizing the support of the Department of Agriculture in maintaining productivity to meet the demand of corn
Analisis Keberhasilan Rehabilitasi Hutan Dan Lahan Di Sub Das Miu
Full text linkThe study aims to identify changes in forest cover resulting from forest and land rehabilitation activities using Landsat 8 OLI Imagery in Miu Sub Watershed Area and to formulate the role of the parties to the implementation of forest and land rehabilitation in the Miu Sub Watershed. This research was conducted in Miu Sub Watershed area in Sigi, Central Sulawesi. This research was conducted for 4 months starting from June until September 2017. Data obtained through direct observation to the field, while the role of the parties obtained through the method of purposive sampling. The data were processed using analysis of image interpretation and 4R analysis for the role of the parties. The results show that the success rate of forest and land rehabilitation in the Miu Sub Watershed area is included in either good category until very good. From the result of wide delineation of landsat image 8 it is known that the Miu Sub Watershed area in Namo village has the highest percentage in the implementation of forest and land rehabilitation management of 92% with an area of 50 Ha. While the results of 4R analysis indicate that the relevant parties have performed their duties and responsibilities fairly well so that forest and land rehabilitation activities in the Miu Sub Watershed area could be done well
Analisis Nilai Tambah Olahan Dodol Salak di Desa Tamarenja Kabupaten Donggala
Full text linkThis research aims to analyzed incomes and value added of Processed Dodol Salak in Tamarenja Village Donggala Regency, as one of the alternatives to reduce production losses thorny palm as a result of damage at the time of the storage period is done. This research is a qualitative descriptive. The population in this research is the home industry of processed dodol salak in the village Tamarenja Donggala Regency that the research sample, so that the method used census methods. Analyzed using analysis of income and value added. Results of this research is that the net income (profit) of processed home industry dodol salak Rp 1,142,575 per four times the production process for a month and added value obtained by Business Group from home industry business is Rp 32 815 per kilograms of raw materials used. Therefore the domestic industry of processed dodol salak in Tamarenja Village Donggala Regency conducted by KUB Jami'tun Khaerat can increase income and add valu
Hubungan Profesionalitas dan Motivasi Kerja Dengan Produktivitas Kinerja Guru Sekolah Dasar di Kecamatan Palu Timur
Full text linkThis research aimed to describe and to analyze effect the profesional ity and work motivation with performance of elementary school teachers in Palu Timur. The research is quantitative research used survey method on distributed 571 teachers in Palu Timur. The sample teachers were 142 persons. The research data were collected by using a questionnaire and analyzed by SPSS 14.0 version and MS Excel. Based on the analyses: (1) there is a significant effect between profesional ity and performance; (2) there is a significant effect between work motivation and performance; and (3) there is a significant effect between profesional ity and work motivation together with work performance of the elementary school teachers at Palu Timur
Efektivitas Dan Adaptasi Tumbuhan Eceng Gondok Dalam Menurunkan Kadar BOD Dan COD Dalam Limbah Cair Pabrik Kelapa Sawit
Full text linkThis research was conducted to determine the effectivity of water hyacinth (Eichhornia crassipes (Mart.) Solms,) on reducing Biohemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) content in Palm Oil Mill Effluent (POME) and find out water hyacinth’s adaptation after contact to POME for 21 days. This research was conducted in September to November 2017 at PT. Manakarra Unggul Lestari, Mamuju, West Sulawesi. This research was arranged on Block Randomized Design, consist of four treatments: P0=0 clumps of water hyacinth, P1=5 clumps of water hyacinth, P2=10 clumps of water hyacinth and P3=15 clumps water hyacinth in strerofoam box contains 105,000 cm3 POME/box treatment and repeated 3 times, resulting 12 experimental units. Wet weight, dry weight, root volume, stomata index and chlorophyll content of water hyacinth were measured to determine the adaptation of water hyacinth after contact with liquid waste. The research results showed that water hyacinth is effective on reducing BOD and COD content in POME. P3 was the largest BOD and COD decrease level, BOD was decreases to 97.36% and COD decreases to 97.50%. From the research can be concluded that water hyacinth plants were able to adapt when placed in the POME and did not show significant signs of stres