Cocoa plantation waste (Theobroma cacao L.), cocoa leaves are increasingly abundant, with efforts to increase cocoa production by trimming the shape. The Ladongi sub-district in Kolaka Regency, Southeast Sulawesi, which produces the most cocoa beans, is also not spared from this. Cocoa leaves have not been used optimally, even though their phytochemical components have the potential as antibacterial. This study aims to determine the antibacterial activity of cocoa leaf extract (Theobroma cacao L.) against acne-causing Cutibacterium acnes and Staphylococcus epidermidis. The method used is the disc diffusion method (Kirby Bauer). The results showed that cocoa leaf extract had the potential as an antibacterial against acne-causing bacteria, Cutibacterium acnes, and Staphylococcus epidermidis with respectively the best inhibitory concentration of 25%, 19mm, and 22mm.
{"title":"Antibacterial Activity of Cocoa Leaf Extract Theobroma cacao L. Against Acne-Causing Bacteria Cutibacterium Acnes and Staphylococcus epidermidis","authors":"Sartika Gunawan Putri, Sutriani Kaliu","doi":"10.22236/jbes/6310267","DOIUrl":"https://doi.org/10.22236/jbes/6310267","url":null,"abstract":"Cocoa plantation waste (Theobroma cacao L.), cocoa leaves are increasingly abundant, with efforts to increase cocoa production by trimming the shape. The Ladongi sub-district in Kolaka Regency, Southeast Sulawesi, which produces the most cocoa beans, is also not spared from this. Cocoa leaves have not been used optimally, even though their phytochemical components have the potential as antibacterial. This study aims to determine the antibacterial activity of cocoa leaf extract (Theobroma cacao L.) against acne-causing Cutibacterium acnes and Staphylococcus epidermidis. The method used is the disc diffusion method (Kirby Bauer). The results showed that cocoa leaf extract had the potential as an antibacterial against acne-causing bacteria, Cutibacterium acnes, and Staphylococcus epidermidis with respectively the best inhibitory concentration of 25%, 19mm, and 22mm.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41336292","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}
Background: Distance learning requires learning media to help students understand the material. Digital booklets are an alternative to teaching biodiversity through visualization. This study aimed to determine the feasibility of digital booklets for class X biodiversity materials. Methods: This Research and Development use the ADDIE model. The product is validated by expert validators, material experts, and teachers. Product trials on students were divided into two groups, namely small groups (10 students) and large groups (30 students). Results: The results of the product assessment meet the very feasible category with scores of 91.67% (media experts), 61.25% (material experts), and 81.25% (teachers). The small group test on students obtained a percentage of 96%, and the big group test with a percentage of 95.33%. Conclusions: The digital booklet learning media product is suitable for class X biodiversity learning.
{"title":"Development of Digital Booklet for Class X Biodiversity Materials","authors":"Kencana Hastin Prameswati, Much. Fuad Saifuddin","doi":"10.22236/j.bes/628760","DOIUrl":"https://doi.org/10.22236/j.bes/628760","url":null,"abstract":"Background: Distance learning requires learning media to help students understand the material. Digital booklets are an alternative to teaching biodiversity through visualization. This study aimed to determine the feasibility of digital booklets for class X biodiversity materials. Methods: This Research and Development use the ADDIE model. The product is validated by expert validators, material experts, and teachers. Product trials on students were divided into two groups, namely small groups (10 students) and large groups (30 students). Results: The results of the product assessment meet the very feasible category with scores of 91.67% (media experts), 61.25% (material experts), and 81.25% (teachers). The small group test on students obtained a percentage of 96%, and the big group test with a percentage of 95.33%. Conclusions: The digital booklet learning media product is suitable for class X biodiversity learning.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68260972","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}
Background: Habitat is a place for living things to grow and develop. Differences in habitat in an area can affect the size of an organism. This study aims to determine the morphometric variations of Tetragonula laeviceps found in urban and forest habitats in Central Sulawesi Province. Methods: This research was conducted with roaming technique. Morphometric characters observed were 35 characters of stingless bee and analyzed using Microsoft Excel software. Results: The results of this study indicated that the morphometric size variation of T. laeviceps found in forest habitats (3.58 mm) is greater than that of wild bee in urban habitats (3.05 mm). Conclusions: Different habitat characteristics can affect the morphometry variations of the bee, especially in T. laeviceps species. The bee's morphometry body size is greater than in the forest habitat, because in that habitat there are environmental temperatures and types of plant sources of nectar which are more supportive for bee life compared to urban habitats.
{"title":"Morphometrical Variations of Tetragonula laeviceps in Different Habitats in Central Sulawesi Province","authors":"I. Budiarsa, F. Dhafir, M. Trianto","doi":"10.22236/j.bes/625062","DOIUrl":"https://doi.org/10.22236/j.bes/625062","url":null,"abstract":"Background: Habitat is a place for living things to grow and develop. Differences in habitat in an area can affect the size of an organism. This study aims to determine the morphometric variations of Tetragonula laeviceps found in urban and forest habitats in Central Sulawesi Province. Methods: This research was conducted with roaming technique. Morphometric characters observed were 35 characters of stingless bee and analyzed using Microsoft Excel software. Results: The results of this study indicated that the morphometric size variation of T. laeviceps found in forest habitats (3.58 mm) is greater than that of wild bee in urban habitats (3.05 mm). Conclusions: Different habitat characteristics can affect the morphometry variations of the bee, especially in T. laeviceps species. The bee's morphometry body size is greater than in the forest habitat, because in that habitat there are environmental temperatures and types of plant sources of nectar which are more supportive for bee life compared to urban habitats.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46091487","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}
Kodri Madang, Elvira Destiansari, Safira Permata Dewi
Background: In the local context of South Sumatra, it is known that freshwater fish occupy important sociological and economic aspects. Placement of materials such as examples of belida fish, snakehead fish, betok fish and local species of fish from South Sumatra into the Morphometry course is something that will support the understanding of morphometry. The existence of this material will also meet the demands of the curriculum with contextual material. This study aims to explain the results of construct and material validation on the product of Morphometry subject teaching materials based on local Sumatran content. This research was conducted in the Biology Education Study Program. Methods: This type of research is descriptive qualitative using expert validation sheets. A validation sheet is given and an expert is assessed. Experts who provide assessments include material experts and constructivists. Validation includes aspects of the construct and material on the product of teaching materials.. Results: The validation results show that the results of the construct expert validation obtained 91.42% results and were declared valid/no need to be revised and the material expert validation results obtained 97.14% results and were declared valid/no need to be revised. Conclusions: Based on these results, it can be concluded that the product of teaching materials is declared valid by construct and material experts so that the product can be used for the next process. These results indicate that the teaching materials are in accordance with learning outcomes and can support the learning process of Morphometry Subjects.
{"title":"Validation of Morphometric Teaching Materials with South Sumatera Local Fish Content","authors":"Kodri Madang, Elvira Destiansari, Safira Permata Dewi","doi":"10.22236/j.bes/628919","DOIUrl":"https://doi.org/10.22236/j.bes/628919","url":null,"abstract":"Background: In the local context of South Sumatra, it is known that freshwater fish occupy important sociological and economic aspects. Placement of materials such as examples of belida fish, snakehead fish, betok fish and local species of fish from South Sumatra into the Morphometry course is something that will support the understanding of morphometry. The existence of this material will also meet the demands of the curriculum with contextual material. This study aims to explain the results of construct and material validation on the product of Morphometry subject teaching materials based on local Sumatran content. This research was conducted in the Biology Education Study Program. Methods: This type of research is descriptive qualitative using expert validation sheets. A validation sheet is given and an expert is assessed. Experts who provide assessments include material experts and constructivists. Validation includes aspects of the construct and material on the product of teaching materials.. Results: The validation results show that the results of the construct expert validation obtained 91.42% results and were declared valid/no need to be revised and the material expert validation results obtained 97.14% results and were declared valid/no need to be revised. Conclusions: Based on these results, it can be concluded that the product of teaching materials is declared valid by construct and material experts so that the product can be used for the next process. These results indicate that the teaching materials are in accordance with learning outcomes and can support the learning process of Morphometry Subjects.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42360673","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}
Background: Numerous types of research on malaria were done over a long period of time but there are still some unknowns. However, it is globally known that malaria is caused by the Plasmodium parasite, mainly and most lethally by Plasmodium falciparum. The purpose of this research is to understand the structure and function of three uncharacterized P. falciparum proteins (PF3D7_1468000, PF3D7_1147400, PF3D7_1351100) using bioinformatic methods in hopes to learn more about malaria. Methods: The three uncharacterized P. falciparum proteins were inserted into Phyre2 for knowing the protein homology, InterPro, and SUPERFAMILY hidden Markov models for understanding the domain annotation, scanprosite for knowing the post-translational modification, Ramachandran plot for protein validation, and Yasara for visualizing the protein. Results: According to the Phyre2 results, the third protein showed the highest confidence and coverage level of 100%, followed by the second protein, and the lowest was the first protein. Interpro and SUPERFAMILY results identified the first protein as WD40 repeat superfamily, the second protein as Cytochrome C subunit II-like, and the third protein as CXXC motif. Scanprosite revealed all sequences possessing protein domains in which the first protein has three protein domains, the second protein has one protein domain, and the third protein has two protein domains. According to the Ramachandran plot, the first and second protein generally has an α-helix structure while the third protein has an overall β-sheet structure, which differs to some extent from the protein structure visualization. The three protein visualizations exhibited secondary structures and more than 50 amino acid residues for each protein. Conclusion: This research concluded that the second and third uncharacterized proteins (PF3D7_1147400, PF3D7_1351100) could be promising antimalarial drug targets leading to the P. falciparum parasite death.
{"title":"Identification of Uncharacterized Plasmodium falciparum Proteins via In-silico Analysis","authors":"Vianney Widjaja, Albert Lim, Benedicta Aini, Gabrielle Audrey Gandasasmita, Jeremie Theddy Darmawan, Arli Aditya Parikesit","doi":"10.22236/j.bes/628770","DOIUrl":"https://doi.org/10.22236/j.bes/628770","url":null,"abstract":"Background: Numerous types of research on malaria were done over a long period of time but there are still some unknowns. However, it is globally known that malaria is caused by the Plasmodium parasite, mainly and most lethally by Plasmodium falciparum. The purpose of this research is to understand the structure and function of three uncharacterized P. falciparum proteins (PF3D7_1468000, PF3D7_1147400, PF3D7_1351100) using bioinformatic methods in hopes to learn more about malaria. Methods: The three uncharacterized P. falciparum proteins were inserted into Phyre2 for knowing the protein homology, InterPro, and SUPERFAMILY hidden Markov models for understanding the domain annotation, scanprosite for knowing the post-translational modification, Ramachandran plot for protein validation, and Yasara for visualizing the protein. Results: According to the Phyre2 results, the third protein showed the highest confidence and coverage level of 100%, followed by the second protein, and the lowest was the first protein. Interpro and SUPERFAMILY results identified the first protein as WD40 repeat superfamily, the second protein as Cytochrome C subunit II-like, and the third protein as CXXC motif. Scanprosite revealed all sequences possessing protein domains in which the first protein has three protein domains, the second protein has one protein domain, and the third protein has two protein domains. According to the Ramachandran plot, the first and second protein generally has an α-helix structure while the third protein has an overall β-sheet structure, which differs to some extent from the protein structure visualization. The three protein visualizations exhibited secondary structures and more than 50 amino acid residues for each protein. Conclusion: This research concluded that the second and third uncharacterized proteins (PF3D7_1147400, PF3D7_1351100) could be promising antimalarial drug targets leading to the P. falciparum parasite death.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44367263","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}
Background: SARS-CoV-2 is a new type of coronavirus of the genus Betacoronavirus and the family Coronaviridae that causes a respiratory disease called COVID-19. The virus has a sheath and genetic material in the form of single-chain RNA. The genome structure of this virus is divided into two types, namely genes that encode non-structural proteins consisting of the ORF1a / ORF1b gene and genes that encode structural proteins consisting of spike glycoprotein (S), envelope (E), membrane glycoprotein (M), and nucleocapsid protein (N). Methods: The method of detecting SARS-CoV-2 with real time RT-PCR is the most recommended method because it has high specificity and accuracy. The specificity of a method is necessary to be able to specifically recognize the pathogen that causes the disease. Real time RT-PCR requires sampling with a swab on the oropharynx or nasopharynx to be examined in the laboratory which later the presence of viral RNA becomes a molecule that is assessed for diagnosis results. In this study, volume optimization was carried out on the Da An Gene kit used for the detection of SARS-CoV-2 with Reverse Transcription Polymerase Chain Reaction (Real time RT-PCR) with the aim of saving the use of reagents from available kits but with amplification results remaining optimal and accurate. Results: There were three SARS-CoV-2 RNA samples used consisting of N62, N63, and N79 samples and three types of total volume used were 20 μl, 15 μl, and 10 μl. The results of this study showed that the three positive samples contained SARS-CoV-2 with a Cq value of < 40. Conclusion: A volume of 20 μl is the optimal volume, which is more efficient than the manufacturer's recommended volume of 25 ul.
{"title":"Optimization of Da An Gene Kit for SARS-CoV-2 Detection in Real-Time RT-PCR","authors":"Seprianto, Muhammad Arreza, Titta Novianti, Febriana Dwi Wahyuni, Oktaviani Naulita Turnip, Roaslein Putri, Henny Saraswati","doi":"10.22236/j.bes/628595","DOIUrl":"https://doi.org/10.22236/j.bes/628595","url":null,"abstract":"Background: SARS-CoV-2 is a new type of coronavirus of the genus Betacoronavirus and the family Coronaviridae that causes a respiratory disease called COVID-19. The virus has a sheath and genetic material in the form of single-chain RNA. The genome structure of this virus is divided into two types, namely genes that encode non-structural proteins consisting of the ORF1a / ORF1b gene and genes that encode structural proteins consisting of spike glycoprotein (S), envelope (E), membrane glycoprotein (M), and nucleocapsid protein (N). Methods: The method of detecting SARS-CoV-2 with real time RT-PCR is the most recommended method because it has high specificity and accuracy. The specificity of a method is necessary to be able to specifically recognize the pathogen that causes the disease. Real time RT-PCR requires sampling with a swab on the oropharynx or nasopharynx to be examined in the laboratory which later the presence of viral RNA becomes a molecule that is assessed for diagnosis results. In this study, volume optimization was carried out on the Da An Gene kit used for the detection of SARS-CoV-2 with Reverse Transcription Polymerase Chain Reaction (Real time RT-PCR) with the aim of saving the use of reagents from available kits but with amplification results remaining optimal and accurate. Results: There were three SARS-CoV-2 RNA samples used consisting of N62, N63, and N79 samples and three types of total volume used were 20 μl, 15 μl, and 10 μl. The results of this study showed that the three positive samples contained SARS-CoV-2 with a Cq value of < 40. Conclusion: A volume of 20 μl is the optimal volume, which is more efficient than the manufacturer's recommended volume of 25 ul.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44427941","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}
Background: Representation is a tool to improve students' communication, interpreting, and problem-solving skills. Visual representation (RV) can provide information about understanding the object/phenomenon observed about the concept under study. This study aimed to determine the relationship between visual representations and material content and the relationship between visual representations and the reality of images contained in the Circulation System material. Methods: This study used a content analysis method with a qualitative data analysis technique. Results: The analysis results show a relationship compared to the category of significant relationships on the circulation system's material and the relationship of symbolic visual representations. Conclusions: The analysis that has been carried out on the visual representation of SMA/MA biology books in the city of Stabat for the circulation system material, it can be concluded that the Visual Representation relationship contained in SMA/MA biology books was found to be more dominant for the category of no relationship compared to the category of a significant relationship in circulation system material presented. In addition, when analyzed concerning the reality of the image, the visual representation displays the relationship of symbolic visual representations in the analyzed biology textbooks. In addition to choosing a textbook, the teacher should pay attention not only to the content of the learning material but also to look at the components in the book, one of which is the picture in the textbook. This will later be useful to support students' understanding of the concepts being taught.
{"title":"Visual Representation of Biology Books on Circulatory System Material","authors":"M. Maduratna, Ummi Nur, Afinni Dwi","doi":"10.22236/j.bes/629415","DOIUrl":"https://doi.org/10.22236/j.bes/629415","url":null,"abstract":"Background: Representation is a tool to improve students' communication, interpreting, and problem-solving skills. Visual representation (RV) can provide information about understanding the object/phenomenon observed about the concept under study. This study aimed to determine the relationship between visual representations and material content and the relationship between visual representations and the reality of images contained in the Circulation System material. Methods: This study used a content analysis method with a qualitative data analysis technique. Results: The analysis results show a relationship compared to the category of significant relationships on the circulation system's material and the relationship of symbolic visual representations. Conclusions: The analysis that has been carried out on the visual representation of SMA/MA biology books in the city of Stabat for the circulation system material, it can be concluded that the Visual Representation relationship contained in SMA/MA biology books was found to be more dominant for the category of no relationship compared to the category of a significant relationship in circulation system material presented. In addition, when analyzed concerning the reality of the image, the visual representation displays the relationship of symbolic visual representations in the analyzed biology textbooks. In addition to choosing a textbook, the teacher should pay attention not only to the content of the learning material but also to look at the components in the book, one of which is the picture in the textbook. This will later be useful to support students' understanding of the concepts being taught.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48366692","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}
Background: In the learning process, the teacher has not brought up the phenomena related to the material to find a solution. Such a learning process has not accompanied students to a problem that requires students to be able to formulate problems, formulate hypotheses, draw conclusions, and recommend problem-solving. This has an impact on the low problem-solving ability of students. This study aims to determine the effect of the Problem Based Learning (PBL) model on the problem-solving ability of Biology students in class X IPA-1 Madrasah Aliyah Swasta Miftahul Fallah Diski. Methods: The research method used is a quasi-experimental research design with One-Group-Pretest-Posttest. The data analyzed were in the form of pretest and post-test with data requirements test in the form of normality test and homogeneity test. Results: The results of the hypothesis test obtained the value of Sig. (2-tailed) in the "Equal variances assumed" section of 0.000 < 0.05, it can be. Conclusions: H0 is rejected, and Ha is accepted, which means that there is a positive and significant effect on students' problem-solving abilities in biology material. protists in class X IPA-1 SMA Madrasah Aliyah Private Miftahul Fallah Diski in the 2021/2022 academic year. PBL can increase the students' average pretest and post-test scores, where the average pretest score is 52.62 with a standard deviation of 7.352 and the post-test average value is 82.86 with a standard deviation of 6.036.
背景：在学习过程中，教师没有提出与材料相关的现象来寻找解决方案。这样的学习过程并没有伴随着学生去解决一个要求学生能够提出问题、提出假设、得出结论和建议解决问题的问题。这对学生解决问题能力低下产生了影响。本研究旨在确定基于问题的学习（PBL）模式对X IPA-1 Madrasah Aliyah Swasta Miftahul Fallah Diski班生物学学生解决问题能力的影响。方法：采用一组预测后测的准实验研究设计方法。分析的数据采用前测和后测的形式，数据要求测试采用正态性测试和同质性测试的形式。结果：假设检验结果得到Sig值。（2-尾）在0.000<0.05的“等方差假设”部分，可以。结论：H0被拒绝，Ha被接受，这意味着对学生在生物材料中解决问题的能力有积极而显著的影响。2021/2022学年X IPA-1 SMA Madrasah Aliyah Private Miftahul Fallah Diski班的门生。PBL可以提高学生的平均前测和后测成绩，其中平均前测成绩为52.62分，标准差为7.352，后测平均值为82.86分，标准偏差为6.036。
{"title":"Measuring Students' Problem-Solving Ability with Problem Based Learning (PBL) in Madrasah Aliyah Schools","authors":"Nabilah Siregar, K. Khairuna","doi":"10.22236/j.bes/629424","DOIUrl":"https://doi.org/10.22236/j.bes/629424","url":null,"abstract":"Background: In the learning process, the teacher has not brought up the phenomena related to the material to find a solution. Such a learning process has not accompanied students to a problem that requires students to be able to formulate problems, formulate hypotheses, draw conclusions, and recommend problem-solving. This has an impact on the low problem-solving ability of students. This study aims to determine the effect of the Problem Based Learning (PBL) model on the problem-solving ability of Biology students in class X IPA-1 Madrasah Aliyah Swasta Miftahul Fallah Diski. Methods: The research method used is a quasi-experimental research design with One-Group-Pretest-Posttest. The data analyzed were in the form of pretest and post-test with data requirements test in the form of normality test and homogeneity test. Results: The results of the hypothesis test obtained the value of Sig. (2-tailed) in the \"Equal variances assumed\" section of 0.000 < 0.05, it can be. Conclusions: H0 is rejected, and Ha is accepted, which means that there is a positive and significant effect on students' problem-solving abilities in biology material. protists in class X IPA-1 SMA Madrasah Aliyah Private Miftahul Fallah Diski in the 2021/2022 academic year. PBL can increase the students' average pretest and post-test scores, where the average pretest score is 52.62 with a standard deviation of 7.352 and the post-test average value is 82.86 with a standard deviation of 6.036.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48815362","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}
Nur Dwi Handarsiputri, Titin Titin, Wolly Candramila
Background: Media booklets are media used in the learning process that have advantages in supportive conditions. The booklet contains a summary of the material that is equipped with pictures and colors so that it is interesting. This study aims to develop a booklet with enriched information about the antidyslipidemic activity test of bay leaf extract (Syzygium polianthum (Wight) Walp.) as a learning medium in the Sub Material of Circulatory System Abnormalities for second grade of highschool. Methods: This development research uses the type of research and development (R&D). The development stages include potentials and problems, data collection, product design, design validation, design revision, and product. The media booklet was validated by 5 validators in terms of format, content, and language, all of which covered 9 criteria. Results: Validation obtained Content Validity Ratio (CVR) and Content Validity Index (CVI) values of 1 which meet the minimum criteria for content validity. Conclusion: Thus, the booklet enriched with the results of the antidyslipidemic activity test of bay leaf extract (Syzygium polianthum (Wight) Walp.) was declared content valid as a learning medium in the Circulatory System Abnormalities Submaterial.
{"title":"Development of Circulatory System Disorders Booklet with Antidyslipidemic Activity Test of Bay Leaf Extract","authors":"Nur Dwi Handarsiputri, Titin Titin, Wolly Candramila","doi":"10.22236/j.bes/617418","DOIUrl":"https://doi.org/10.22236/j.bes/617418","url":null,"abstract":"Background: Media booklets are media used in the learning process that have advantages in supportive conditions. The booklet contains a summary of the material that is equipped with pictures and colors so that it is interesting. This study aims to develop a booklet with enriched information about the antidyslipidemic activity test of bay leaf extract (Syzygium polianthum (Wight) Walp.) as a learning medium in the Sub Material of Circulatory System Abnormalities for second grade of highschool. Methods: This development research uses the type of research and development (R&D). The development stages include potentials and problems, data collection, product design, design validation, design revision, and product. The media booklet was validated by 5 validators in terms of format, content, and language, all of which covered 9 criteria. Results: Validation obtained Content Validity Ratio (CVR) and Content Validity Index (CVI) values of 1 which meet the minimum criteria for content validity. Conclusion: Thus, the booklet enriched with the results of the antidyslipidemic activity test of bay leaf extract (Syzygium polianthum (Wight) Walp.) was declared content valid as a learning medium in the Circulatory System Abnormalities Submaterial.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43251062","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}
Dewi Elfidasari, Haninah Haninah, Handhini Dwi Putri, Irawan Sugoro
Backgrounds: Heavy metal that pollutes the river area affects living organisms which reside in it. Contamination of heavy metal in Ciliwung River leads to the presence of heavy metal elements (Cd, Hg, and Pb) inside the body of the plecos (Pterygoplichtys Pardalis) which inhabits that area. Hence, the utilization of plecos flesh and bones as a raw material in processed food products (e.g. shredded fish, shumai, and fish flour) might be harmful for human. Accumulated load of heavy metal in human's body would likely trigger health problems. Insufficient data on heavy metal concentration in Ciliwung River plecos-based food products underlies this research, with the aim to calculate the concentration of heavy metal Cd, Hg, and Pb on the previously mentioned plecos-based shredded fish, shumai, and flour. Methods: Heavy metal Cd, Hg, and Pb concentration analysis using X-Ray Fluoresence (XRF) methods conducted on PAIR Batan. Results: Value of Cd on shredded fish <0.5 mg/kg, shumai 0,7 mg/kg, head+tailbone and body skeleton flour <0.3 mg/kg. Value of Hg on shredded fish and shumai <0.7 mg/kg, head+tailbone flour 0.3 mg/kg, body skeleton flour 0.4 mg/kg. Value of Pb on shredded fish 1.3 mg/kg, shumai 0.8 mg/kg, head+tailbone flour 2.3 mg/kg, body skeleton flour 1.6 mg/kg. Conclusions: Heavy metal concentration on Ciliwung River plecos-based processed food products (shredded fish, shumai, and flour) has exceed maximum limit of Cd, Hg, and Pb determined by SNI, BPOM, and FAO.
{"title":"The Concentration of Heavy Metals Cd, Hg, Pb in Processed Food Products Based Pterygoplichthys pardalis (Castelnau, 1855) from Ciliwung River Jakarta Region","authors":"Dewi Elfidasari, Haninah Haninah, Handhini Dwi Putri, Irawan Sugoro","doi":"10.22236/j.bes/618708","DOIUrl":"https://doi.org/10.22236/j.bes/618708","url":null,"abstract":"Backgrounds: Heavy metal that pollutes the river area affects living organisms which reside in it. Contamination of heavy metal in Ciliwung River leads to the presence of heavy metal elements (Cd, Hg, and Pb) inside the body of the plecos (Pterygoplichtys Pardalis) which inhabits that area. Hence, the utilization of plecos flesh and bones as a raw material in processed food products (e.g. shredded fish, shumai, and fish flour) might be harmful for human. Accumulated load of heavy metal in human's body would likely trigger health problems. Insufficient data on heavy metal concentration in Ciliwung River plecos-based food products underlies this research, with the aim to calculate the concentration of heavy metal Cd, Hg, and Pb on the previously mentioned plecos-based shredded fish, shumai, and flour. Methods: Heavy metal Cd, Hg, and Pb concentration analysis using X-Ray Fluoresence (XRF) methods conducted on PAIR Batan. Results: Value of Cd on shredded fish <0.5 mg/kg, shumai 0,7 mg/kg, head+tailbone and body skeleton flour <0.3 mg/kg. Value of Hg on shredded fish and shumai <0.7 mg/kg, head+tailbone flour 0.3 mg/kg, body skeleton flour 0.4 mg/kg. Value of Pb on shredded fish 1.3 mg/kg, shumai 0.8 mg/kg, head+tailbone flour 2.3 mg/kg, body skeleton flour 1.6 mg/kg. Conclusions: Heavy metal concentration on Ciliwung River plecos-based processed food products (shredded fish, shumai, and flour) has exceed maximum limit of Cd, Hg, and Pb determined by SNI, BPOM, and FAO.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49664714","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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