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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA)
Karimah Karimah
Brawijaya University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Analisis Kemampuan Literasi Sains Siswa SMP Umar Masud Muhammad Azimul Anshar; Yuni Sri Rahayu; Erman Erman; Karimah Karimah; Aunur Rofiq
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.2667

Abstract

Scientific literacy is the main key in facing the challenges of the 21st century. The reason for the low ability of students in scientific literacy is the lack of scientific literacy content in teaching materials. The importance of students' knowledge of scientific literacy skill information is to provide solutions to problems in the field of literacy. This study aimed to determine the scientific literacy abilities of Class VII students of the Umar Mas'ud Sangkapura School. A combination descriptive research method was used in this study. Under the direction of the Umar Mas'ud School, a cluster random sampling method was used to select the research sample, which included 40 seventh graders from MTS Umar Mas'ud and SMP Umar Mas'ud. The instrument was carried out by testing scientific literacy questions and interview guideline sheets. The results of the scientific literacy tests and interviews were carried out using data analysis techniques by giving a score to each student's answer. The data obtained were interpreted into two categories, scientific literacy scores, and interview results. The average grade VII grade IPA students of the Umar Mas'ud Sangkapura Foundation are 32,563, placing them in the low category. There are several factors that cause students' low scientific literacy skills, including a lack of interest in reading, instructional media that do not prioritize scientific literacy, and a lack of direction from the teacher
Korelasi Distribusi Ukuran mikroplastik dan Parameter Kualitas Air di Hulu Sungai Brantas Luthfia Ayu Dhea; Andi Kurniawan; Siti Mariyah Ulfa; Karimah Karimah
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.2777

Abstract

Microplastics are contaminants resulting from plastic fragmentation with a size <5 mm. The spread of microplastics threatens the imbalance of the environment and organisms in the waters. So it is necessary to know the abundance, size distribution, and correlation between microplastic abundance and water quality parameters. This study used a quantitative descriptive method with purposive sampling. The study parameters included total microplastic abundance, microplastic abundance based on size characteristics, type of microplastic polymer, water quality parameters, and correlation between microplastic abundance and water quality. Calculating the total abundance of microplastics obtained a value range of 3311.11 – 18111.11 particles/m3. The results of the microplastic size distribution got the highest abundance percentage value in the class with a size <50 µm, which was 84.39%. There were eight types of polymers identified, including Polyethylene (PE), Polyvinyl chloride (PVC), Polypropylene (PP), High-density polyethylene (HDPE), Low-density polyethylene (LDPE, Polyethylene terephthalate (PET), Polycarbonate (PC), and Nylon. Water quality measurements obtained temperature range of 17.37-26.63 °C, pH value range of 6.66-8.51, current velocity value range of 0.13-0.8 m/s, DO value range of 4, 32-6.103 ppm, BOD value range of 4.69-6.07 ppm and TSS value range 0.005-0.019 ppm. Correlation analysis using the Canonical Correlation Analysis (CCA) statistical method. The study showed that water quality parameters such as temperature, current velocity, and DO have a high score of 0.95, 0.83, and 0.8.
PENGARUH AIR LIMBAH CUCIAN BERAS TERHADAP BIOMASSA, PROTEIN, DAN PIGMEN KAROTENOID Arthrospira platensis Anisa Millah Taqiyyah; Yenny Risjani; Asep Awaludin Prihanto; Gilang Drajat Maulana; Karimah Karimah
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.2795

Abstract

Arthrospira platensis culture requires macro and micronutrients. The nutrients needed by Arthrospira platensis according to Agustina and Herman (2021) are macronutrients consisting of nitrogen (N), phosphorus (P), potassium (K), sulfur (S), iron (Fe), magnesium (Mg), silicon (Si), and calcium (Ca). Micronutrients consist of zinc (Zn), cobalt (Co), molybdenum (Mo), boron (B), and copper (Cu). Rice-washing wastewater contains macro and micronutrients needed for the growth of Arthrospira platensis. Almost all of the nutrients needed by Arthrospira platensis are found in the wastewater, except for Co. Previous studies have shown that rice-washing wastewater can be used for Arthrospira platensis culture, but the growth rate is still higher than Walne fertilizer 0.5 ml/L. Zarrouk fertilizer as a standard growth medium for Arthrospira platensis shows that this fertilizer has better growth results than Urea and NPK fertilizers. This research was conducted to determine the effect of rice-washing wastewater as a nutrient source for culture media or a combination of Zarrouk fertilizer and rice-washing wastewater so that it can be used to increase the biomass and carotenoid pigments of Arthrospira platensis. This research used a Factorial Completely Randomized Design (CRD) with 12 treatments and 3 replications. Arthrospira platensis quality test was carried out by testing dry biomass and carotenoid content. The ANOVA test results showed that this study's treatment had a significant effect on the carotenoid content and biomass of Arthrospira platensis. The treatment with the highest effect of biomass and carotenoids was obtained in the treatment of 1.5 ml/L of rice-washing wastewater
Pertumbuhan Arthospira platensis dengan Sumber Nitrogen yang Berbeda Nur Aliya Nabila Zsalzsabil; Yenny Risjani; Muhamad Firdaus; Karimah Karimah
Jurnal Penelitian Pendidikan IPA Vol 9 No 3 (2023): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i3.2754

Abstract

Microalgae is a promising and innovative biological resource. Indonesia has the potential for the development of microalgae production. One of the microalgae that have high economic value is Arthrospira platensis. In the production of microalgae, the development of suitable media and environmental conditions need to be factors that must be considered. This study aimed to analyze the effect of different nitrogen sources and nitrogen doses and their interaction on the growth of microalgae Arthrospira platensis cultured in fresh water. In addition, analyzing the water quality of Arthrospira platensis culture media. This study used an experimental method of Completely Randomized Factorial Design) with two factors. The first factor is the nitrogen source (Sodium nitrate, Potassium nitrate, and Calcium nitrate). The second factor is the dose of nitrogen source (2 g/l.2.5 g/l.3 g/l). The main parameter observed was microalgae growth, while the supporting parameter was the water quality which affected the growth of Arthrospira platensis. The highest density results were found in the provision of a nitrogen source of Ca(NO3)2 3 g/l, which was 370,000 cells/ml. The results of the ANOVA test showed that the type of nitrogen source, the dose, and the interaction between the two affected the specific growth rate of Arthrospira platensis. The environmental conditions during culture ranged from 20.2°C-26.2°C, pH values ​​8.95 – 10.18, and dissolved oxygen 9.17 – 9.77 mg/L.
Co-Authors Andi Kurniawan Anisa Millah Taqiyyah Asep Awaludin Prihanto Aunur Rofiq Erman Erman Gilang Drajat Maulana Luthfia Ayu Dhea Muhamad Firdaus Muhammad Azimul Anshar Nur Aliya Nabila Zsalzsabil Siti Mariyah Ulfa Yenny Risjani Yuni Sri Rahayu