Pub Date : 2023-04-29DOI: 10.21107/jps.v10i1.17432
A. Gani, Dinda Miftahul Jannah, Z. Zulfadli
This study aims at analyzing macronutrients of organic fertilizer from the mixture of Casuarina equisetifolia leaf litter and Ananas comosus rind waste with effective microorganism bioactivator. Research on making and analyzing the nutrient content of organic fertilizers has been carried out using a mixture Casuarina equisetifolia leaf litter and Ananas comosus rind waste which consists of three variations of the composition with two repetitions. The process of making compost is conducted by mixing small pieces of pineapple litter and rind and mixed with effective microorganism (EM4) in a container. The composting process occurs for a maximum of 31 days based on the temperature measurement of the fertilizer. In the degree of acidity test using digital pH meter, it shows that the pH level is classified as acidic, the pH variations of the fertilizer P0U1, P0U2, P1U1, P1U2, P2U1, and P2U2 are 5.029 respectively; 5,026; 4,934; 4,047; 5,452; and 4,551. The results of the analysis of the elemental nitrogen content (%) of various fertilizers P0U1, P0U2, P1U1, P1U2, P2U1, and P2U2 were 0.27; 0.38; 0.39; 0.41; 0.36; and 0.39. The results of the C-organic element analysis (%) were 25.87; 29.12; 35.58; 30.77; and 29.66. The phosphorus content (%) obtained was 0.147; 0.137; 0.138; 0.136; 0.139; and 0.142. Potassium content (%) of 0.32; 0.25; 0.56; 0.78; 1.23; and 1.79. The C / N ratio of each fertilizer variation was sequential, namely 95.81; 76.63; 83.23; 86.78; 85.47; and 76.05. The analysis parameters for C, P, and K show conformity with the National standard provisions.
{"title":"MACRONUTRIENT ANALYSIS OF ORGANIC FERTILIZER FROM THE MIXTURE OF Casuarina equisetifolia LEAF LITTER AND Ananas comosus RIND WASTE WITH EFFECTIVE MICROORGANISM BIOACTIVATOR","authors":"A. Gani, Dinda Miftahul Jannah, Z. Zulfadli","doi":"10.21107/jps.v10i1.17432","DOIUrl":"https://doi.org/10.21107/jps.v10i1.17432","url":null,"abstract":"This study aims at analyzing macronutrients of organic fertilizer from the mixture of Casuarina equisetifolia leaf litter and Ananas comosus rind waste with effective microorganism bioactivator. Research on making and analyzing the nutrient content of organic fertilizers has been carried out using a mixture Casuarina equisetifolia leaf litter and Ananas comosus rind waste which consists of three variations of the composition with two repetitions. The process of making compost is conducted by mixing small pieces of pineapple litter and rind and mixed with effective microorganism (EM4) in a container. The composting process occurs for a maximum of 31 days based on the temperature measurement of the fertilizer. In the degree of acidity test using digital pH meter, it shows that the pH level is classified as acidic, the pH variations of the fertilizer P0U1, P0U2, P1U1, P1U2, P2U1, and P2U2 are 5.029 respectively; 5,026; 4,934; 4,047; 5,452; and 4,551. The results of the analysis of the elemental nitrogen content (%) of various fertilizers P0U1, P0U2, P1U1, P1U2, P2U1, and P2U2 were 0.27; 0.38; 0.39; 0.41; 0.36; and 0.39. The results of the C-organic element analysis (%) were 25.87; 29.12; 35.58; 30.77; and 29.66. The phosphorus content (%) obtained was 0.147; 0.137; 0.138; 0.136; 0.139; and 0.142. Potassium content (%) of 0.32; 0.25; 0.56; 0.78; 1.23; and 1.79. The C / N ratio of each fertilizer variation was sequential, namely 95.81; 76.63; 83.23; 86.78; 85.47; and 76.05. The analysis parameters for C, P, and K show conformity with the National standard provisions.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49666400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-29DOI: 10.21107/jps.v10i1.19161
Nur Syafitri, M. A. Munir, V. Aprilia, E. Emelda
Vitamins are essential compounds in food even though the content contained in these foods is small, and this is because vitamins have a vital role in the human body. Vitamin C or ascorbic acid is a secondary antioxidant compound that captures free radical compounds. Vitamin C content is easily found in vegetables and fruits. One of the fruits that contain vitamin C is guava. This study aims to determine and analyze vitamin C concentrations in several guava fruit types with the iodometric titration method. This type of research is a quantitative-qualitative experimental laboratory. The samples used in this study were guava in Myrtaceae family consisting of red guava (Psidium guajava L.), crystal guava (Psidium guajava L.), and red water guava (Syzygium aqueum). The study began with making 0.05 N iodine, iodine formation, then the 3% amylum indicators. The average sample content of red guava, crystal guava, and red water guava was 2.42 mg/100 grams. To conclude, the ascorbic acid concentration of red guava water is higher at 157 mg/100 g compared to the other two guavas, which are 80 mg/100 g and 87 mg/100 g.
{"title":"DETERMINATION OF ASCORBIC ACID CONCENTRATION IN MYRTACEAE USING THE IODOMETRIC TITRATION METHOD","authors":"Nur Syafitri, M. A. Munir, V. Aprilia, E. Emelda","doi":"10.21107/jps.v10i1.19161","DOIUrl":"https://doi.org/10.21107/jps.v10i1.19161","url":null,"abstract":"Vitamins are essential compounds in food even though the content contained in these foods is small, and this is because vitamins have a vital role in the human body. Vitamin C or ascorbic acid is a secondary antioxidant compound that captures free radical compounds. Vitamin C content is easily found in vegetables and fruits. One of the fruits that contain vitamin C is guava. This study aims to determine and analyze vitamin C concentrations in several guava fruit types with the iodometric titration method. This type of research is a quantitative-qualitative experimental laboratory. The samples used in this study were guava in Myrtaceae family consisting of red guava (Psidium guajava L.), crystal guava (Psidium guajava L.), and red water guava (Syzygium aqueum). The study began with making 0.05 N iodine, iodine formation, then the 3% amylum indicators. The average sample content of red guava, crystal guava, and red water guava was 2.42 mg/100 grams. To conclude, the ascorbic acid concentration of red guava water is higher at 157 mg/100 g compared to the other two guavas, which are 80 mg/100 g and 87 mg/100 g.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43865370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nova Amalia, Suroso Mukti Leksono, Vica Dian Aprelia Resti
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{"title":"DEVELOPMENT OF E-BOOKLET THEME OF FOOD SECURITY BASED ON SCIENCE LITERACY FOR STUDENTS OF JUNIOR HIGH SCHOOL CLASS IX","authors":"Nova Amalia, Suroso Mukti Leksono, Vica Dian Aprelia Resti","doi":"10.21107/jps.v9i2.14053","DOIUrl":"https://doi.org/10.21107/jps.v9i2.14053","url":null,"abstract":",","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46097093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DEVELOPMENT OF STUDENT WORKSHEETS (LKPD) BASED ON SCIENCE PROCESS SKILLS AIR POLLUTION THEMES TO GROW CRITICAL THINKING ABILITY IN SMP STUDENTS","authors":"Nanda Amelia, Suroso Mukti Leksono, Vica Dian Aprelia Resti","doi":"10.21107/jps.v9i2.14076","DOIUrl":"https://doi.org/10.21107/jps.v9i2.14076","url":null,"abstract":"","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43108652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aims to determine the efficiency of science digital comics on the theme of my polluted air to train critical thinking skills of seventh grade junior high school students. The research method used is the research and development (RD) method. By using the 4-D model (Four D Model) proposed by Thiagarajan dkk., (1974) through modifications that are tailored to the needs. The 4-D model is only implemented until the third stage, namely define, design, and development. The instruments used are material expert validation questionnaire sheets, media experts and practitioner experts and student response questionnaire sheets to measure the level of product efficiency. Data analysis is descriptive quantitative and qualitative. The results of this study indicate that the overall validation results of science digital comics on the theme "My Air is Polluted" to train critical thinking skills of seventh grade junior high school students are 92.25%. The results of the efficiency level of IPA digital comic products obtained a value of 82.27% in the "Efficient" category. For further research, it is expected to be able to continue research with a high depth of material and be able to conduct large-scale trials so that research results are maximized.
本研究旨在确定以我的污染空气为主题的科学数字漫画对初中七年级学生批判性思维技能的训练效率。所使用的研究方法是研究与开发（RD）方法。利用Thiagarajan dkk提出的4-D模型（Four D model）。，（1974）通过根据需要进行的修改。4-D模型只实施到第三阶段，即定义、设计和开发。使用的工具是材料专家验证问卷表、媒体专家和从业者专家以及学生回答问卷表，以衡量产品效率水平。数据分析是描述性的、定量的和定性的。本研究结果表明，以“我的空气被污染了”为主题的科学数字漫画对初中七年级学生批判性思维技能的整体验证结果为92.25%。IPA数字漫画产品的效率水平在“高效”类别中获得了82.27%的值。对于进一步的研究，预计能够继续进行高深度的材料研究，并能够进行大规模试验，从而最大限度地提高研究结果。
{"title":"DEVELOPMENT OF SCIENCE DIGITAL COMIC ON THE THEME MY AIR POLLUTED TO TRAIN CRITICAL THINKING SKILLS FOR CLASS VII JUNIOR HIGH SCHOOL STUDENTS","authors":"Nada Solehah, Lukman Nulhakim, Adi Nestiadi","doi":"10.21107/jps.v9i2.15043","DOIUrl":"https://doi.org/10.21107/jps.v9i2.15043","url":null,"abstract":"This study aims to determine the efficiency of science digital comics on the theme of my polluted air to train critical thinking skills of seventh grade junior high school students. The research method used is the research and development (RD) method. By using the 4-D model (Four D Model) proposed by Thiagarajan dkk., (1974) through modifications that are tailored to the needs. The 4-D model is only implemented until the third stage, namely define, design, and development. The instruments used are material expert validation questionnaire sheets, media experts and practitioner experts and student response questionnaire sheets to measure the level of product efficiency. Data analysis is descriptive quantitative and qualitative. The results of this study indicate that the overall validation results of science digital comics on the theme \"My Air is Polluted\" to train critical thinking skills of seventh grade junior high school students are 92.25%. The results of the efficiency level of IPA digital comic products obtained a value of 82.27% in the \"Efficient\" category. For further research, it is expected to be able to continue research with a high depth of material and be able to conduct large-scale trials so that research results are maximized.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41531989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Philosophically, natural sciences as a building of knowledge can study ontology (what you want to know), epistemology (how to acquire knowledge), and axiology (what is the value of knowledge). Natural Science as a building of science has properties that are closely related to natural objects. The problems that occur with natural objects are holistic. This holistic problem requires problem-solving from various disciplines, especially in the natural sciences. Based on the scope of the research above, this article aims to investigate integrated natural science learning in a philosophical review (ontology, epistemology, axiology). The qualitative method is applied in this study. Studies conducted to solve problems based on a critical and in-depth analysis of pertinent library materials are known as library research. Overviews of ontology, epistemology, and axiology state that integrated natural science learning, students are expected to be able to relate to other disciplines such as physics, astronomy, chemistry, geology, biology, technology, environment, and health and safety. This type of instruction uses natural science to present natural phenomena and events holistically and to develop students' problem-solving skills. The recommendation given is that teachers should tend to the interdisciplinary study of the natural sciences.
{"title":"PHILOSOPHY OF INTEGRATED NATURAL SCIENCE LEARNING","authors":"A. Wicaksono, Ifa Hanifa Rahman","doi":"10.21107/jps.v9i2.16778","DOIUrl":"https://doi.org/10.21107/jps.v9i2.16778","url":null,"abstract":"Philosophically, natural sciences as a building of knowledge can study ontology (what you want to know), epistemology (how to acquire knowledge), and axiology (what is the value of knowledge). Natural Science as a building of science has properties that are closely related to natural objects. The problems that occur with natural objects are holistic. This holistic problem requires problem-solving from various disciplines, especially in the natural sciences. Based on the scope of the research above, this article aims to investigate integrated natural science learning in a philosophical review (ontology, epistemology, axiology). The qualitative method is applied in this study. Studies conducted to solve problems based on a critical and in-depth analysis of pertinent library materials are known as library research. Overviews of ontology, epistemology, and axiology state that integrated natural science learning, students are expected to be able to relate to other disciplines such as physics, astronomy, chemistry, geology, biology, technology, environment, and health and safety. This type of instruction uses natural science to present natural phenomena and events holistically and to develop students' problem-solving skills. The recommendation given is that teachers should tend to the interdisciplinary study of the natural sciences.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41821942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research was conducted due to the lack of student's awareness of the phenomenon of acid rain. The phenomenon of acid rain can be harmful to health and ecosystems. Whereas acid rain can be prevented by increasing the awareness of students by improving the quality of education, especially the ability to think creatively, which is expected to help find solutions to minimize the impact of acid rain. However, students in Indonesia have a low quality of education which causes students' creative thinking skills to be below. This study aims to determine the efficiency of Augmented Reality-based learning media in the development of creative thinking skills of seventh-grade students on the theme of Acid Rain. Augmented Reality-based learning media is a technology that combines 2D and 3D virtual objects from interactive applications, thus helping in growing students' creative thinking skills. The research method used is Research and Development (R&D), according to Thiagarajan (1974), which was adapted based on the 4-D model. This model consists of 4 stages of development, namely define, design, develop, and disseminate. But the research is limited to the development stage because this research only focuses on the efficiency level of the Augmented Reality-based learning media developed. The results of the study based on the efficiency test of learning media based on Augmented Reality with the theme of acid rain for class VII SMP obtained an average value of 88.5% in the very efficient category.
{"title":"EFFICIENCY OF CREATIVE THINKING ABILITY IN AUGMENTED REALITY-BASED LEARNING MEDIA THE ACID RAIN THEME","authors":"F. Ramadhani, S. Sjaifuddin, S. Kurniasih","doi":"10.21107/jps.v9i2.14116","DOIUrl":"https://doi.org/10.21107/jps.v9i2.14116","url":null,"abstract":"This research was conducted due to the lack of student's awareness of the phenomenon of acid rain. The phenomenon of acid rain can be harmful to health and ecosystems. Whereas acid rain can be prevented by increasing the awareness of students by improving the quality of education, especially the ability to think creatively, which is expected to help find solutions to minimize the impact of acid rain. However, students in Indonesia have a low quality of education which causes students' creative thinking skills to be below. This study aims to determine the efficiency of Augmented Reality-based learning media in the development of creative thinking skills of seventh-grade students on the theme of Acid Rain. Augmented Reality-based learning media is a technology that combines 2D and 3D virtual objects from interactive applications, thus helping in growing students' creative thinking skills. The research method used is Research and Development (R&D), according to Thiagarajan (1974), which was adapted based on the 4-D model. This model consists of 4 stages of development, namely define, design, develop, and disseminate. But the research is limited to the development stage because this research only focuses on the efficiency level of the Augmented Reality-based learning media developed. The results of the study based on the efficiency test of learning media based on Augmented Reality with the theme of acid rain for class VII SMP obtained an average value of 88.5% in the very efficient category.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46570397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dzulkiflih Dzulkiflih, Imam Sya’roni, Meta Yanti Dewi, R. Firdaus, Muhhimatul Khoiro
Kualitas air di Daerah Metroplotian sangatlah penting untuk diteliti karena menyangkut kelayakan dan informasi terkait penggolongan air menggunakan alat berbasis teknologi. Maka perlu diadakan sebuah kelayakan atau penelitian dalam hal ini tentang kandungan pH dan TDS yang terkandung dalam air tersebut, Di mana pH tersebut mengetahui tingkat keasaman atau basa air yang dikonsumsi itu semua tergantung pada mereka, sehingga secara tidak langsung mengkonsumsi air dengan mengetahui pH air akan memberikan informasi mengenai potensi kontaminasi, karena itu menguji pH air bisa menjadi tindakan pencegahan untuk kesehatan masyarakat. Disamping kita mengetahui pH maka kita harus mengetahu tingkat kualitas air dengan TDS air – yang mana air merupakan molekul yang paling banyak ada di alam dan sebagai sumber utama kehidupan, bahkan tubuh manusia itu sendiri. Dimana TDS (Total Dissolved solid) merupakan ukuran Zat terlarut (baik itu zat organic maupun anorganic ) yang mana TDS merupakan gambaran zat terlarut dalam Part Per Million (PPM). Penelitian ini menggunakan metode eksperimental dengan data kuantitatif melalui pengambilan sampel di 14 titik se-Kabupaten Sidoarjo. Dari hasil pengujian alat ukur pengukuran TDS dan pH meter didapatkan nilai kalibrasi dari air minum baku dibawah 300 ppm sedangkan untuk air normal dibawah 500 ppm. Untuk batasan maksimal air bisa digunakan untuk kebutuhan rumah tangga dibawah 1000 ppm. 14 titik Sampel yang telah diukur, dapat disimpulkan bahwa Daerah Sedati merupakan Daerah dengan nilai ppm terbaik untuk konsumsi rumah tangga. Namun harus diolah terlebih dahulu dalam pengkonsumsiannya dikarenakan diatas 300 ppm. Sedangkan untuk 13 titik sampel daerah selain Sedati tergolong mengandung logam dan bahan-bahan campuran dalam air. Sehingga dibutuhkan pengolahan lebih lama lagi untuk bisa dikonsumsi.
{"title":"ANALISA KELAYAKAN AIR DI KABUPATEN SIDOARJO MENGGUNAKAN ALAT UKUR TDS DAN PH METER BERBASIS MIKROKONTROLLER","authors":"Dzulkiflih Dzulkiflih, Imam Sya’roni, Meta Yanti Dewi, R. Firdaus, Muhhimatul Khoiro","doi":"10.21107/jps.v9i2.16931","DOIUrl":"https://doi.org/10.21107/jps.v9i2.16931","url":null,"abstract":"Kualitas air di Daerah Metroplotian sangatlah penting untuk diteliti karena menyangkut kelayakan dan informasi terkait penggolongan air menggunakan alat berbasis teknologi. Maka perlu diadakan sebuah kelayakan atau penelitian dalam hal ini tentang kandungan pH dan TDS yang terkandung dalam air tersebut, Di mana pH tersebut mengetahui tingkat keasaman atau basa air yang dikonsumsi itu semua tergantung pada mereka, sehingga secara tidak langsung mengkonsumsi air dengan mengetahui pH air akan memberikan informasi mengenai potensi kontaminasi, karena itu menguji pH air bisa menjadi tindakan pencegahan untuk kesehatan masyarakat. Disamping kita mengetahui pH maka kita harus mengetahu tingkat kualitas air dengan TDS air – yang mana air merupakan molekul yang paling banyak ada di alam dan sebagai sumber utama kehidupan, bahkan tubuh manusia itu sendiri. Dimana TDS (Total Dissolved solid) merupakan ukuran Zat terlarut (baik itu zat organic maupun anorganic ) yang mana TDS merupakan gambaran zat terlarut dalam Part Per Million (PPM). Penelitian ini menggunakan metode eksperimental dengan data kuantitatif melalui pengambilan sampel di 14 titik se-Kabupaten Sidoarjo. Dari hasil pengujian alat ukur pengukuran TDS dan pH meter didapatkan nilai kalibrasi dari air minum baku dibawah 300 ppm sedangkan untuk air normal dibawah 500 ppm. Untuk batasan maksimal air bisa digunakan untuk kebutuhan rumah tangga dibawah 1000 ppm. 14 titik Sampel yang telah diukur, dapat disimpulkan bahwa Daerah Sedati merupakan Daerah dengan nilai ppm terbaik untuk konsumsi rumah tangga. Namun harus diolah terlebih dahulu dalam pengkonsumsiannya dikarenakan diatas 300 ppm. Sedangkan untuk 13 titik sampel daerah selain Sedati tergolong mengandung logam dan bahan-bahan campuran dalam air. Sehingga dibutuhkan pengolahan lebih lama lagi untuk bisa dikonsumsi.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42218386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. H. Baharim, Tuan Azmar Tuan Daud, Hanita Hashim, Noor Fazreen Dzulkafli
Water quality study on the main lake of Universiti Selangor (UNISEL) Bestari Jaya Campus was conducted on weekly basis for twelve weeks. The level of pollution in the lake was classified according to Interim National Water Quality Standard (INWQS) and Water Quality Index (WQI). Three sampling stations were chosen and the concentration of Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solids (TSS) and Ammonia-Nitrogen (AN) were determined. Water samples were analyzed physically and chemically. The physical water quality parameter, Dissolved Oxygen (DO), temperature and pH were measured in situ and the chemical parameter of BOD, COD, TSS and AN were analyzed in the laboratory according to the APHA Method. Throughout the study period, the water temperature was recorded in the range of 28.0 oC to 29.1 oC and pH of the water was recorded at neutral level. Based on INWQS, COD, TSS, pH and AN parameters were classified in Class II. DO parameter was classified in Class III which indicate that the lake was slightly polluted and BOD parameter was classified Class V which is heavily polluted. Analysis of water parameter according to WQI showed the main lake was classified in Class IV. Based on these two water quality standards, this can be concluded that the main lake in UNISEL Bestari Jaya Campus were polluted and further actions need to be taken by the management of the university in order the improved the water quality of the lake.
{"title":"LAKE WATER QUALITY ASSESSMENT IN UNIVERSITI SELANGOR BESTARI JAYA CAMPUS: A PRELIMINARY STUDY","authors":"N. H. Baharim, Tuan Azmar Tuan Daud, Hanita Hashim, Noor Fazreen Dzulkafli","doi":"10.21107/jps.v9i1.11583","DOIUrl":"https://doi.org/10.21107/jps.v9i1.11583","url":null,"abstract":"Water quality study on the main lake of Universiti Selangor (UNISEL) Bestari Jaya Campus was conducted on weekly basis for twelve weeks. The level of pollution in the lake was classified according to Interim National Water Quality Standard (INWQS) and Water Quality Index (WQI). Three sampling stations were chosen and the concentration of Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solids (TSS) and Ammonia-Nitrogen (AN) were determined. Water samples were analyzed physically and chemically. The physical water quality parameter, Dissolved Oxygen (DO), temperature and pH were measured in situ and the chemical parameter of BOD, COD, TSS and AN were analyzed in the laboratory according to the APHA Method. Throughout the study period, the water temperature was recorded in the range of 28.0 oC to 29.1 oC and pH of the water was recorded at neutral level. Based on INWQS, COD, TSS, pH and AN parameters were classified in Class II. DO parameter was classified in Class III which indicate that the lake was slightly polluted and BOD parameter was classified Class V which is heavily polluted. Analysis of water parameter according to WQI showed the main lake was classified in Class IV. Based on these two water quality standards, this can be concluded that the main lake in UNISEL Bestari Jaya Campus were polluted and further actions need to be taken by the management of the university in order the improved the water quality of the lake.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48816848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rifqy Kiara Cahyaningrum, Partaya Partaya, A. Marianti
This research is a correlational study that develops quantitative descriptive research. This study aims to obtain information about the relationship between linguistic intelligence and cognitive abilities in the sub-concepts of disaster response actions and other factors that influence it besides linguistic intelligence. This research was conducted in September 2019. The population of this study was MTS Darul Irfan students of Serang City in the academic year 2019/2020. The sampling technique uses simple random sampling. The sample was 24 students of class VII-A. The data collection method is done by tests, documentation, student worksheets, and observations. Based on the regression and linearity test results, it can be concluded that the simple regression analysis with the equation Y=37.986+0.038X is linear. Based on the result of quantitative research, the correlation coefficient between linguistic intelligence and cognitive abilities is 0,0030. This correlation coefficient value indicates that H0is rejected and H1is accepted, meaning linguistic intelligence weakens student cognitive abilities. In this study, other factors affect student cognitive abilities, among others, strategies and learning methods, development of learning media in schools, and environmental factor of students.
{"title":"THE RELATIONSHIP BETWEEN LINGUISTIC INTELLIGENCE AND STUDENTS’ COGNITIVE ABILITIES IN THE SUB-CONCEPTS OF DISASTER RESPONSE ACTIONS","authors":"Rifqy Kiara Cahyaningrum, Partaya Partaya, A. Marianti","doi":"10.21107/jps.v9i1.12866","DOIUrl":"https://doi.org/10.21107/jps.v9i1.12866","url":null,"abstract":"This research is a correlational study that develops quantitative descriptive research. This study aims to obtain information about the relationship between linguistic intelligence and cognitive abilities in the sub-concepts of disaster response actions and other factors that influence it besides linguistic intelligence. This research was conducted in September 2019. The population of this study was MTS Darul Irfan students of Serang City in the academic year 2019/2020. The sampling technique uses simple random sampling. The sample was 24 students of class VII-A. The data collection method is done by tests, documentation, student worksheets, and observations. Based on the regression and linearity test results, it can be concluded that the simple regression analysis with the equation Y=37.986+0.038X is linear. Based on the result of quantitative research, the correlation coefficient between linguistic intelligence and cognitive abilities is 0,0030. This correlation coefficient value indicates that H0is rejected and H1is accepted, meaning linguistic intelligence weakens student cognitive abilities. In this study, other factors affect student cognitive abilities, among others, strategies and learning methods, development of learning media in schools, and environmental factor of students.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46915685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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