Articles
<![CDATA[Validitas dan Praktikalitas E-Modul Berbasis Mobile Learning Berbantuan 3D Page Flip Professional Pada Materi Ekologi dan Perubahan Lingkungan di Kelas X SMA ]]>
<![CDATA[Muhamad Sholichin]]>;
<![CDATA[Abdul Razak]]>;
<![CDATA[Lufri Lufri]]>;
<![CDATA[Irdawati Irdawati]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v8i6.2467
<![CDATA[This study aims to produce a valid and practical Mobile Learning (ML)-Based E-Module Assisted by the 3D Page Flip Professional Application. This type of research is development research using the Plomp model. The development stage of this model begins with the initial investigation stage, the development or prototyping stage, and the assessment stage. The instruments used in this development research were teacher interview guideline instrument sheets, student response questionnaire sheets, self-evaluation sheets, and E-Module validation sheets by experts, as well as e-module practicality assessment sheets filled in by teachers and students. The results showed that the 3D Page Flip Professional Application Assisted Mobile Learning (ML) Based E-Module based on expert judgment was very valid with a score of 89.10%. Practicality assessment of student assessment in field trials (large group evaluation) with a score of 88.95% with very practical criteria, and practicality assessment by the teacher obtained a score of 93.75% with very practical criteria. It can be concluded that the 3D Page Flip Professional Application Assisted Mobile Learning (ML) Based E-Module that has been developed is in the category of very valid, and very practical.]]>
<![CDATA[Pengembangan Lembar Kegiatan Peserta Didik (LKPD) Berbasis Problem Solving pada Materi Virus untuk Kelas X SMA/MA ]]>
<![CDATA[Desi Nurmayenti]]>;
<![CDATA[Heffi Alberida]]>;
<![CDATA[Fitri Arsih]]>;
<![CDATA[Irdawati Irdawati]]>
<![CDATA[ FONDATIA Vol 7 No 1 (2023): MARET ]]>
Publisher : <![CDATA[Pendidikan Guru Madrasah Ibtidaiyah STIT Palapa Nusantara ]]>
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DOI: 10.36088/fondatia.v7i1.2883
<![CDATA[LKPD (Student Activity Sheet) in student-centered learning serves as a guide for learning activities. Based on the results of observations and interviews with teachers at SMA AL-Istiqamah it is known that the LKPD in this school has not been adapted to the learning model used, therefore it needs to be developed. The purpose of this study was to develop problem solving based worksheets on viruses for class X SMA/MA. This type of research is development research using the 4-D model. The subjects of this study were 39 students of class X MIPA 1 SMA AL-Istiqamah. The product that is produced is a problem solving based LKPD on virus material. The validators consisted of two lecturers from the Department of Biology FMIPA UNP and one Al-Istiqamah High School Biology teacher. The research data is in the form of validation data and practicality of LKPD. Data analysis is in the form of descriptive statistics. The results showed that problem solving-based worksheets on virus material fulfilled the valid category with a validity value of 89.26% and practical with 88.45% practicality. It could be concluded that problem solving-based Student Activity Sheets were produced on virus material for class X SMA. Valid and practical /MA.]]>
<![CDATA[The Effect of the Two Stay Two Stray Learning Model Based on a Scientific Approach to Student Competence in Biology Learning ]]>
<![CDATA[Rizka Putri Alti]]>;
<![CDATA[Moralita Chatri]]>;
<![CDATA[Irdawati Irdawati]]>;
<![CDATA[Vauzia Vauzia]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v9i2.2933
<![CDATA[This study aims to determine the effect of the two stay two stray learning model based on a scientific approach to the competence of class XI students at SMAN 3 Pariaman. This type of research is a quasi-experimental research with a randomized control-group posttest only design. The research population was all class XI MIPA students at SMAN 3 Pariaman in the 2022/2023 academic year. Sampling used a purposive sampling technique, so that class XI MIPA 1 (experimental class) and class XI MIPA 3 (control class) were selected. Data analysis techniques using normality test, homogeneity test and hypothesis testing. Testing the hypothesis in the domain of knowledge uses the t test while testing the hypothesis in the domain of attitudes and skills using the Mann Whitney test. The results of the study found that the two stay two stray learning model based on a scientific approach had an effect on the competence in the realm of knowledge, attitudes and skills of class XI students at SMAN 3 Pariaman]]>
<![CDATA[Compatibility Test Consorcium of Thermophilic Bacteria Producing Xylanase Enzym from The Hot Water of Mudiak Sapan (MS18, MSS15, MSS11, MS16) ]]>
<![CDATA[Irdawati]]>;
<![CDATA[Indrawani Matondang]]>;
<![CDATA[Linda Advinda]]>;
<![CDATA[Azwir Anhar]]>;
<![CDATA[Yusrizal Y]]>
<![CDATA[ Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June ]]>
Publisher : <![CDATA[Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia ]]>
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DOI: 10.29303/jbt.v23i2.4761
<![CDATA[Mudiak Sapan hot spring, South Solok Regency, West Sumatra is one of the hot springs where there are various species of thermophilic bacteria that produce xylanase enzymes. The xylanase enzyme is a group of enzymes that has the ability to hydrolyze xylan (hemicellulose) or polymers into xylose and xylo-oligosaccharides. The purpose of this study was to test the compatibility of bacterial isolates to become a xylanase-producing bacterial consortium. This research is a descriptive research that informs the compatibility of thermophilic bacterial isolates from the Mudiak Sapan hot springs. The method used in this study was disk diffusion, based on the research, it was found that 5 combinations of compatible xylanase enzyme-producing isolates were MS18 x MSS11; MS18 x MSS15; MSS18 x MS16 ; MSS11 x MS16 ; MSS15 x MS16 and 1 combination of incompatible isolates namely MSS11 x MSS15 which had an inhibition zone of 0.645 cm.]]>
<![CDATA[ISOLATION OF ENDOPHYTIC BACTERIA FROM TAXUS ROOT (Taxus sumatrana) AND TEST ITS POTENCY AS PRODUCER OF ANTIMICROBIAL COMPOUNDS ]]>
<![CDATA[Mulia Mulia]]>;
<![CDATA[Dwi Hilda Putri]]>;
<![CDATA[Linda Advinda]]>;
<![CDATA[Irdawati Irdawati]]>
<![CDATA[ AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 9, No 1 (2023) ]]>
Publisher : <![CDATA[UPT Publication and Journal Management, Islamic University of Kalimantan ]]>
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DOI: 10.31602/jst.v9i1.9951
<![CDATA[Endophytic bacteria have been extensively studied as a source of new antimicrobial compounds. Research into new antimicrobials is important as an alternative to the treatment of resistant microbes. One potential source of antimicrobial compounds is the Taxus (Taxus sumatrana). This study aimed to investigate the antimicrobial activity produced by the endophytic bacteria of the Taxus. Endophytic bacteria were isolated from the roots of Taxsus plants growing in Mt. Singalang, X Koto District, West Sumatra. Bacteria were isolated by inoculating pieces of Taxus root tissue into a PDA medium. Endophytic bacteria were identified macroscopically and microscopically. Antimicrobial activity was tested with the test microbe using the spot test diffusion method. As a result of the research, 23 isolates of endophytic Taxus bacteria were obtained, of which 21 isolates were gram-positive and 2 isolates were gram-negative bacteria. The results of the antimicrobial activity test yielded only 2 isolates of endophytic bacteria with antibacterial activity.]]>
<![CDATA[Starter Concentration of SSA4 Thermophilic Bacteria in Producing Xylanase ]]>
<![CDATA[Irdawati Irdawati]]>;
<![CDATA[Jannah Koftiah]]>;
<![CDATA[Dwi Hilda Putri]]>;
<![CDATA[Linda Advinda]]>
<![CDATA[ Bioscience Vol 7, No 1 (2023): Biology ]]>
Publisher : <![CDATA[UNIVERSITAS NEGERI PADANG ]]>
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DOI: 10.24036/0202371117423-0-00
<![CDATA[Advances in the field of biotechnology have led to the use of enzymes in industry increasingly. The high public awareness of environmental pollution makes enzyme technology as an alternative to replace various chemical processes. Enzymes can be used in various industrial sectors such as textiles, food, detergents, paper and cosmetics, as well as biofuels. One of the enzymes that is often used is the enzyme xylanase. Thermophilic microorganisms that can produce thermostable enzymes are thermophilic bacteria. One of the important factors affecting the success of the manufacturing process of the production of the xylanase enzyme is the concentration of the starter. The production of the thermophilic bacterial xylanase enzyme SSA 4 produced the highest specific enzyme activity at a concentration of 4% which was 0.137 U/mg. This shows that low starter concentrations can overwhelm microbial growth well. The increase in the concentration of the starter causes the enzyme activity to decrease, this happens.]]>
<![CDATA[The Ability of the Thermophilic Bacteria Triculture Consortium from Mudiak Sapan Hot Springs to Produce Biofuel ]]>
<![CDATA[Irdawati Irdawati]]>;
<![CDATA[Putri Rachma Auliya]]>;
<![CDATA[Dwi Hilda Putri]]>;
<![CDATA[Dezi Handayani]]>;
<![CDATA[Yusrizal Yusrizal]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol 9 No 4 (2023): April ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v9i4.3480
<![CDATA[Biofuel is an alternative energy to replace fossil fuels. The most popular form of biofuel today is bioethanol. Biofuels are considered as a suitable alternative to fossil fuels because they are more environmentally friendly. Production of bioethanol utilizing thermophilic microorganisms is more profitable because thermophilic microbes generally have the characteristics of being able to use a variety of substrates, low contamination, and resistance to high temperatures. The use of microbial consortia tends to give better results than the use of monoculture isolates to optimize bioethanol yields. The aim of this study was to determine the compatibility and ability of the best thermophilic bacterial triculture consortium from the Mudiak Sapan hot springs in producing biofuel. This research is a descriptive research, to test isolates of a consortium of thermophilic bacteria that produce bioethanol. The results of this study showed that consortium isolates tended to give better results than monoculture isolates. The best thermophilic bacterial triculture consortium from the Mudiak Sapan hot springs in producing biofuels namely MS 12, 17, 18 produced a bioethanol content of 0.863%.]]>
<![CDATA[PENGEMBANGAN VIDEO PEMBELAJARANUNTUK PESERTA DIDIK KELAS X IPA MAN 1 PASAMAN BARAT ]]>
<![CDATA[Abdul Razak]]>;
<![CDATA[Wirda Taufik]]>;
<![CDATA[Dwi Hilda Putri]]>;
<![CDATA[Irdawati Irdawati]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol 9 No 5 (2023): May ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v9i5.3124
<![CDATA[This study aims to produce learning videos for Bacteria and Protists using Sparkol Videoscribe software for class X IPA students that are valid, practical, and effective. This research method is research and development (research and development) using the Plomp development model. This development stage consists of three stages, namely the preliminary research phase, the development or prototyping phase, and the assessment phase. The results of this study indicate that the developed learning videos have a validity value of 85.63% with a very valid category based on expert judgment. The practicality assessment by the teacher was 89.13% in the very practical category and the large group evaluation assessment by students obtained a practicality value of 87.69% in the very practical category. The results of the effectiveness test showed that the class that used learning videos had higher average competency values of knowledge, attitudes, and skills, compared to classes that did not use learning videos. It can be concluded that the learning videos that have been developed are in the category of very valid, very practical, and very effective for increasing students' learning competence]]>
<![CDATA[Development of E-Module with STEM Nuances to Improve Students' Creative Thinking Skills ]]>
<![CDATA[Kurnia Wulansari]]>;
<![CDATA[Irdawati]]>;
<![CDATA[Abdul Razak]]>;
<![CDATA[Moralita Chatri]]>;
<![CDATA[Suci Fajrina]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol 9 No 7 (2023): July ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v9i7.4417
<![CDATA[One of the factors for improving the quality of education in schools is teaching materials. Based on the results of observations at SMAN 1 Sitiung that students have not used e-modules but use electronic teaching materials in the form of pdf files downloaded from the internet and only in the form of writing and a few pictures. Based on the results of the questionnaire, it is known that students have difficulty understanding the concept of the respiratory system material. This causes low student learning outcomes. Based on the results of the creative thinking questionnaire, it was found that students' creative thinking ability is still low with an average score of 33.8, so it is included in the less creative category. So it takes teaching materials that can help in visualizing the subject matter. This type of research is Plomp model development research which consists of three stages, namely the initial investigation stage, the development or prototyping stage, and the assessment stage. The research subjects were class XI students at SMAN 1 Sitiung for the 2022-2023 academic year. Validation results by the validator on nuanced e-modules Science Technology Engineering And Mathematics (STEM) shows an average grade 88.05% (very valid). Practical results by Biology teachers showed an average score of 87.5% (very practical) and 88.28% students (very practical). The test data for the effectiveness of creative thinking was obtained from the average essay questions 81.22% (very creative). Â ]]>
<![CDATA[The Potential of Hot Water Sapan Sungai Aro Thermophilic Bacteria Consortium in Producing Bioethanol ]]>
<![CDATA[Inayatul Fatia]]>;
<![CDATA[Irdawati Irdawati]]>;
<![CDATA[Linda Advinda]]>;
<![CDATA[Azwir Anhar]]>
<![CDATA[ Bioscience Vol 7, No 2 (2023): Biology ]]>
Publisher : <![CDATA[UNIVERSITAS NEGERI PADANG ]]>
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DOI: 10.24036/bsc.v7i2.123265
<![CDATA[Biofuel is a potentially renewable alternative fuel in Indonesia. Bioethanol is one example of the most commonly used biofuel. Microorganisms of thermophilic bacteria are known to contribute to the production of bioethanol. Thermophilic bacteria are efficient against high temperature conditions so as to minimize contamination. Production of bioethanol can also use joint culture (consortium). Bioethanol production using a microbial biculture consortium is known to significantly increase the level of bioethanol production. The purpose of this study was to determine the compatibility and to determine the optimum potential of the thermophilic bacterial biculture consortium of Sapan Sungai Aro hot water for bioethanol production. This research is a type of descriptive research. To test the cooperation between consortium isolates of thermophilic bacteria producing bioethanol, a compatibility test was carried out using the disk diffusion method. Then the consortium isolates were fermented in liquid TMM (Thermophilic Minimum Media) medium, the bioethanol content was measured after distillation using a pycnometer. The results of the bacterial compatibility test showed that there was one pair of isolates that were not compatible, namely SSA 8 & SSA 14 due to the presence of a clear zone. On research results. The production of bioethanol by a consortium of thermophilic bacteria gives more optimal results compared to a single isolate. The best thermophilic bacterial biculture consortium from the Sapan Sungai Aro hot spring in producing biofuels is SSA 14 & SSA 16 which is 3.009%. ]]>
