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All Journal Jurnal Dikdas Jurnal Kreatif Tadulako Online Kreatif agriTECH Unnes Science Education Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Akademika Kimia Chimica et Natura Acta Indonesian Journal of Chemistry JANGKA Husada Mahakam: Jurnal Kesehatan Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Pendidikan Guru (JPG) Panrannuangku Jurnal Pengabdian Masyarakat Journal for Lesson and Learning Studies Jurnal Kajian Pariwisata Media Eksakta Jurnal Akademika Kimia Mahakam Nursing Journal (MNJ) Jurnal Cendekia Ihya Mitra Sains Jurnal Akademika Kimia
Siti Nuryanti
Department Of Chemistry, Faculty Of Teacher Training And Education, Tadulako University, Jln. Soekarno-Hatta Km 8, Palu
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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PERANCANGAN PROGRAM PEMBELAJARAN IPA BERBASIS TEMATIK INOVATIF KELAS VII SMP Pursitasari, Indarini Dwi; Nuryanti, Siti; Rede, Amran
Kreatif Vol 17, No 1 (2014)
Publisher : Kreatif

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Abstract

Abstrak : Tujuan dari penelitian ini adalah merancang program pembelajaran IPA berbasis tematik inoovatif yang dapat meningkatkan kemampuan berpikir kritis. Perancangan program dimulai dengan analisis pengetahuan awal dan gaya belajar siswa, analisis kurikulum, pemetaan kompetensi dasar dan topik pelajaran IPA. Selain itu dirancang juga alat evaluasi berupa tes kemampuan berpikir kritis, lembar observasi, dan angket. Hasil pemetaan selanjutnya dibuat silabus, RPP, LKS, dan media pembelajaran. Sintaks dalam pembelajaran IPAterpadu berbasis tematik dan inovatif adalahObservation, Questioning, Exploration, Analysis, Confirmation, and Evaluation (OQEACE). Kata kunci: IPA, tematik, inovatif, berpikir kritis
Pengaruh Model Pembelajaran Kooperatif Tipe Teams Games Tournaments dan Tipe Scramble Terhadap Motivasi dan Hasil Belajar Siswa Kelas XI IPA pada Materi Larutan Asam-Basa di SMAN 1 Bunta Latupeirisa, Veronica Purnama Sari; Nuryanti, Siti; Mustapa, Kasmudin
Jurnal Akademika Kimia Vol 7, No 3 (2018)
Publisher : Universitas Tadulako

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Abstract

This study aimed to determine the effect of cooperative learning model teams games tournaments and scramble towards the student's motivation and learning outcomes of class XI IPA on the material of acid-base solutions in SMAN 1 Bunta. This research was a pre-experimental with the static pretest-posttest group design. The samples used in the study were students XI IPA 2 (n=30) as a class experiment 1 and students XI IPA 3 (n=28) as an experiment 2. The results of data analysis, the average value of class experiment 1 () was 78.2 and the experimental class 2 () was 73.21. Results of hypotheses testing by statistical t-test two parties it was obtained -ttable ≤tcal≥ + ttable  (tcal = 36.72 for class experiment 1; tcal = 24.65 for class experiment 2  and ttable = 1.67) with a significance level a = 0.05 and degrees of freedom 56, then H0 was rejected and Ha was accepted. The results of the students learning motivation questionnaire showed that the experimental class 1 was the attitude of "strong agree" with the positive category 85.12% and the experimental class 2 was in the attitude of "agree" with the positive category 84.17%. It can be concluded that there is an influence of cooperative learning model teams games tournaments and scramble to the student's motivation and learning outcomes of class XI IPA on the material of acid-base solutions in SMAN 1 Bunta.
Pengaruh Model Pembelajaran Problem Based Learning pada Materi Hukum-Hukum Dasar Kimia terhadap Hasil Belajar Siswa Kelas X MAN 2 Model Palu Lamalat, Tri Sulistiyawati; Supriadi, Supriadi; Nuryanti, Siti
Jurnal Akademika Kimia Vol 7, No 3 (2018)
Publisher : Universitas Tadulako

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Abstract

Research on the effect of the problem-based learning model in the basic laws of chemistry on student’s learning outcomes in class X MAN 2 Model Palu has been done. This study aimed to determine the effect of the application of the problem-based learning model in the basic laws of chemistry on student’s learning outcomes in class X MAN 2 Model Palu. The type of research was a quasi-experimental study non-randomized design with pretest-posttest control group design. The sample was conducted with a purposive sampling technique. The study sample was students in class X MIA 6 as an experimental group (n = 22) and students in class X MIA 3 as a control group (n = 22). The data testing of students' learning outcomes used a non-parametric statistical analysis, the analysis of Mann-Whitney U-Test. The research results indicated that the mean value of the experiment class was high compared to the control class, 22.61 >18.39. The statistical analysis obtained that sig. 2-tailed (0,032) ˂ 0.05 and Zcalculation (-2.149) ˂ Ztable (-1.96). The average value of the experiment class was 82.95 while the average value of the control class was 73.64. So it can be concluded that there is the effect of applying the problem-based learning model in the basic laws of chemistry on student’s learning outcomes. 
Analisis Kadar Kafein dalam Kopi Bubuk Lokal yang Beredar di Kota Palu Suwiyarsa, I Nyoman; Nuryanti, Siti; Hamzah, Baharuddin
Jurnal Akademika Kimia Vol 7, No 4 (2018)
Publisher : Universitas Tadulako

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Abstract

Analysis of caffeine level in local coffee powder that circulates in Palu city have been done. The purpose of this study was to determine the level of caffeine in local coffee powder, which is engaged in several markets in the city of Palu. Levels of caffeine in the study will be compared with the standard caffeine content according to the SNI 01-3542-2004, i.e. 0.45-2% w/w. The method used for qualitative analysis was the thin layer chromatography and for quantitative analysis was using UV-Vis spectrophotometry. The results of qualitative analysis of six local coffee powders A, B, C, D, E, and F showed each a Rf value between 0.32 to 0.40. Levels of caffeine (per 1 g of coffee powder) quantitatively ranging from brand samples A to F were 0.83, 2.06, 1.60, 2.63, 1.29, and 1.72%, respectively, percent level of caffeine of six samples of local powdered coffee, samples A, C, E and F in terms of SNI 01-3542-2004 were between 0.45-2.00% (w/w), while sample B and sample D exceeds 2% were 2.06% and 2.63%.
PEMANFAATAN DAUN PALADO (Agave sp) DALAM PROSES PEMBUATAN VIRGIN COCONUT OIL (VCO) Nuryanti, Siti; Rahmawati, Sitti; U.B., Sitti Nadira
Jurnal Akademika Kimia Vol 2, No 2 (2013)
Publisher : Universitas Tadulako

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Abstract

VCO lately has been used in medical area especially as a medicine for diabetes mellitus, obesity, cholesterol, heart, osteoporosis and can be used to cure diseases that caused by microbial and fungal. VCO also acts as antibiotic because it contains lauric and oleic acid. The availability of VCO materials in Indonesia is abundant, therefore to be developed as a medicine substance, the process of VCO making should be without any chemical material and high heating. The aim of this research is the utilization of palado leaves in the making process of VCO as well as to determine its quality. The method used in this research is the preparation of palado leaves fiber sample, preparation of cream coconut milk with coconut, the making of VCO fermentative for 20 hours and quality test for the VCO made with extra palado leaves by using parameters of colour, smell, the acid number, peroxide number, water content, refractive index and specific gravity, as a comparison is a commercil VCO (Celebes brand). Data analysis used is descriptive qualitative. The research result shows that VCO made with extra palado leaves has clear colour, normal smell, savory taste, while its acid number is 0.4 mg/g, peroxide number is 1 meq/g, water content is 1%, refractive index is 1.44804 and density is 0.888 g/ml. On the other hand, VCO Celebes has clear colour, normal smell and savory taste, while its acid number is 0 mg/g, peroxide number is 0 meq/g, water content is 0%, refractive index is 1.44803 and density is 0.892 g/ml. The conclusion of this research is that the palado leaves can be used in the making process of VCO and the VCO produced is suitable to APCC standard.
Pemanfaatan Limbah Cangkang Kelapa Sawit (Elaeis guineensis) Sebagai Pengadsorbsi Minyak Jelantah Ubaidah, Nurcholis Al; Nuryanti, Siti; Supriadi, Supriadi
Jurnal Akademika Kimia Vol 7, No 3 (2018)
Publisher : Universitas Tadulako

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Abstract

Improper of usage and storage of cooking oil can increase the water content on cooking oil. It can decrease of cooking oil quality and fried food that resulted from this cooking oil which then can cause health problems. This study aimed to determine of the waste cooking oil quality after it was adsorbed with charcoal from eggshell palm oil (Elaeis gunieensis). The quality was determined based on the free fatty acids, the peroxide value, and the water content of the waste cooking oil before and after adsorption. Determination of free fatty acids was used titration method while determination of water content was used gravimetric method. The result showed that the cooking oil quality contained 0.014% of free fatty acids, 1 meq.O2/kg of peroxide value, and 0.0003% of water content. The waste cooking oil quality without adsorption process was 0.042% of free fatty acids, 26 meq.O2/kg of peroxide value, and 0.0011% of water content. After adsorption process with 5, 10, 15, 20, and 25 gram of charcoal from eggshell palm oil into 100 mL of waste cooking oil, it was found that 15 gram of eggshell weight was the best adsorbent. In was condition, the free fatty acid was 0.0006%, the peroxide value was 2 meq.O2/kg, and the water content 0.0005%. It showed that the waste cooking oil quality become better after adding of charcoal of eggshell palm oil as the adsorbent.
Analisis Kadar Kalsium (Ca) dan Posforus (P) pada Buah Pare (Momordica charantia L) dari Boyaoge dan Sidera Palu Sulawesi Tengah Diniyanti, Diniyanti; Nuryanti, Siti; Said, Irwan
Jurnal Akademika Kimia Vol 7, No 4 (2018)
Publisher : Universitas Tadulako

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Abstract

The aim of this study was to determine calcium (Ca) and phosphorus (P) levels in pare (Momordica charantia L) fruits. Samples were obtained from Boyaoge and Sidera Palu, Central Sulawesi. Analyzing calcium (Ca) and phosphorus (P) levels in pare used the Spectrodirect instrument. The analysis results obtained the average concentration values of the calcium in the samples of pare from Boyaoge and Sidera were 6.0 mg/L and 8.3 mg/L, respectively, while the average concentration values of the phosphorus in the samples were 4.3 mg/L and 6.5 mg/L, respectively. These results showed that the higher concentration of calcium (Ca) and phosphorus (P) in pare fruit was obtained from Sidera.
Penentuan Kadar Protein dan Karbohidrat pada Limbah Batang Pohon Pisang Kepok (Musa paradisiaca normalis) Dhamayanti, Noviasri; Tiwow, Vanny M. A.; Nuryanti, Siti
Jurnal Akademika Kimia Vol 7, No 4 (2018)
Publisher : Universitas Tadulako

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Abstract

The aim of this study was to determine protein and carbohydrate levels contained in waste of banana kepok (Musa paradisiaca Normalis) trees. Samples were taken from Mpanau Sigi Central Sulawesi. This study used Kjeldahl method in determining protein level, and anthrone method in determining reducing sugar level. The analysis results obtained in the hard layer of banana tree are 3.05% of protein level and 6.75% of carbohydrate level, while in the soft layer of banana tree are 0.08% of protein level and 4.75% of carbohydrate level, respectively. This study concluded that protein and carbohydrate levels obtained from the hard layer of banana kepok trees waste is higher, than literatures.
INNOVATIVE-THEMATIC BASED INTEGRATED SCIENCE LEARNING ON NATURAL DIVERSITY THEME TO IMPROVE STUDENTS’ CRITICAL THINKING SKILLS IN JUNIOR HIGH SCHOOL Pursitasari, Indarini Dwi; Nuryanti, Siti; Rede, Amran
Unnes Science Education Journal Vol 7 No 2 (2018): July 2018
Publisher : Department of Integrated Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang in Collaboration with Perkumpulan Pendidikan IPA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v7i2.25479

Abstract

Critical thinking skills should be trained and practiced in the learning process. This study aimed to describe the use of Innovative-Thematic Based Integrated Science (ITBIS) Learning Program to improve critical thinking skills of junior high school students in Palu. The study conducted in the 7th grade from one of Palu public schools and one of Palu private schools. Data were collected by observation sheet of learning performance and students activity, also test instrument for measuring students’ critical thinking skills. The data of learning performance and students activity were analyzed quantitatively, whereas the data of critical thinking skills were analyzed using descriptive and inferential statistics. The result showed that lTBIS learning can be done well either in public school and private school with average 98,03% and 90,20% respectively. ITBIS learning also improve students activity in the learning process. The average of critical thinking skills improvement (N-gain) was 68% (public school) and 63% (private school), and there were no significant differences between both of them. It showed that lTBIS learning can be used to build critical thinking skills of junior high school students.
Teori Fungsional Kerapatan Struktur Membran Nata De Coco Tersulfonasi Sitti Rahmawati; Cynthia L. Radiman; Muhamad A. Martoprawiro; Siti Nuryanti; A. Ma’ruf
Chimica et Natura Acta Vol 7, No 2 (2019)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.271 KB) | DOI: 10.24198/cna.v7.n2.23823

Abstract

Penelitian ini bertujuan untuk menentukan struktur paling stabil dari berbagai struktur membran polimer nata de coco tersulfonasi.  Struktur energi minimum untuk dimer, trimer, tetramer dan pentamer nata de coco tersulfonasi ditentukan dengan metode DFT (teori fungsional kerapatan) dengan fungsional B3LYP dan basis set 6-311G(d). Nata de coco tersulfonasi merupakan polimer dengan satuan unit ulang (monomer) D-glukosa sulfonat dengan ikatan β-1,4.  Hasil perhitungan struktur dimer, trimer, tetramer dan pentamernya menunjukkan tidak ada perubahan energi secara signifikan pada interaksinya dengan satu molekul air, yaitu sekitar -20.14 kkal/mol. Perhitungan energi tersebut memberikan dasar bahwa untuk perhitungan dan penelitian lebih lanjut tentang membran polimer nata de coco tersulfonasi bisa menggunakan bentuk dimernya.
Co-Authors A. Ma’ruf Afadil Agustin Tiwow Al Gifary, Muhammad Ali Amran Amran Rede Anang Wahid M.Diah Arun Haryanto Asmaul Husna B, Supriadi Baharuddin Hamzah Baharuddin Hamzah Barau, Fitri Chairil Anwar Chintia N. Barani Cynthia L. Radiman Daud Karel Walanda Dewi Satria Ahmar Dhamayanti, Noviasri Diniyanti, Diniyanti Edi Sukamto Ergina, Ergina Frantauansyah, Frantauansyah Hartarti Uminah I Made Tangkas Ijirana Indarini Dwi Pursitasari Indarini Dwi Puspitasari Irwan Irwan Jamaludin M Sakung Jeane Maria Mustika Tonahi Jusman Lapatta Karmila Karmila Kasmudin Mustapa Laksono Trisnantoro Lamalat, Tri Sulistiyawati Latupeirisa, Veronica Purnama Sari Lilik Suparwati Lis K. Djaledje Ma’ruf, Ahmad Magfirah Magfirah Male, Kasmir Sy. Marungkil Pasaribu Megawati T. H. Romu Mery Napitupulu Minarni R.J Minarni Rama Jura Mitha Widya Ningrum Moh. Azhar Afandy Muhamad A. Martoprawiro Muhammad Agus Muljanto Muhammad Silmi Hi Abubakar Nesia Andriana Nirwan Syafrin Nur A. O. Buhang Nur, Kurniati Nurbaeti Nurbaeti Nurdin Rahman Nurhasan, Abdul Kodir Nurmiati Nurmiati Nursucianti, Nursucianti Paulus H. Abram Pratiwi, Tia Putri Radiansah, Roy Rahmasita Rahmasita Rahmawati, Rahmawati Rasmun, Rasmun Ratman Ratman Ratman Ratman Robiansyah, Yal Sabirin Matsjeh Safna Nurfadila Sahida Sahida Saldi, Heri Salsabila, Unik Hanifah Setianingsih, Rahmadiana Siti Aminah Siti Nurbaya Sitti Rahmawati Sri Mulyani Sabang SRI RAHAYU Sri Wahyuni Sriyulaningsi Sriyulaningsi Sriyundiyati, Ni Putu Sudarmo, I Gede Suhardi Suhardi Suherman Suherman Suherman Suherman Sulhajir, Wahyuni Supriadi Supriadi Suwiyarsa, I Nyoman Tahril Tri Joko Raharjo U.B., Sitti Nadira Ubaidah, Nurcholis Al Winarti Winarti Yani Restiani Widjaja, Yani Restiani Yuli Nurmayanti Yuma Ardian Allu Yusuf Kendek Yusuf Kendek Yusuf Kendek