Sainstek : Jurnal Sains dan Teknologi
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek
<table class="data" width="100%" bgcolor="#f0f0f0"><tbody><tr valign="top"><td width="30%">Journal title</td><td width="80%">Sainstek : Jurnal Sains dan Teknologi</td></tr><tr valign="top"><td width="30%">Initials</td><td width="80%"><strong>Sainstek</strong></td></tr><tr valign="top"><td width="30%">Abbreviation</td><td width="80%"><strong>Sainstek : j. sains teknol.</strong></td></tr><tr valign="top"><td width="30%">Print ISSN</td><td width="80%"><strong><a href="https://issn.brin.go.id/terbit/detail/1331592565" target="_blank">2085-8019</a> </strong></td></tr><tr valign="top"><td width="30%">Online ISSN</td><td width="80%"><strong><a href="https://issn.brin.go.id/terbit/detail/1491292171" target="_blank">2580-278x</a> </strong></td></tr><tr valign="top"><td width="30%">Frequency</td><td width="80%"><strong>2 issues per year</strong></td></tr><tr valign="top"><td width="30%">DOI</td><td width="80%"><strong>prefix 10.31958</strong></td></tr><tr valign="top"><td width="30%">Editor-in-chief</td><td width="80%"><p><strong>Marjoni Imamora</strong> <em>(</em>Universitas Islam Negeri Mahmud Yunus Batusangkar, Sumatera Barat, Indonesia<em>)</em></p><p><em><a href="https://www.scopus.com/authid/detail.uri?authorId=55366900800" target="_blank">Scopus ID</a> - <a href="https://scholar.google.com/citations?user=cRItq5oAAAAJ&hl=id&oi=ao" target="_blank">Google Scholar</a> - <a href="https://sinta.kemdikbud.go.id/authors/detail?id=5979779&view=overview" target="_blank">Sinta</a> - <a href="https://orcid.org/0000-0003-0828-8531" target="_blank">Orcid</a> </em></p></td></tr><tr valign="top"><td width="30%">Publisher</td><td width="80%">Uiversitas Islam Negeri mahmud Yunus Batusangkar</td></tr><tr valign="top"><td width="30%">Citation Analysis</td><td width="80%"><strong><a href="https://app.dimensions.ai/discover/publication?search_mode=content&and_facet_source_title=jour.1314137" target="_blank">DIMENSIONS</a></strong></td></tr><tr valign="top"><td width="30%"><span>Accredited</span></td><td width="80%"><strong><a href="https://sinta.kemdikbud.go.id/journals/detail?id=6856" target="_blank">Sinta 4</a></strong></td></tr></tbody></table><p align="justify">Sainstek : Jurnal Sains dan Teknologi is an interdisciplinary forum for the publication of original peer-reviewed, contributed and invited articles or topics covered can be categorized as disciplinary (mathematics, biology, chemistry, physics, Education and computer science, and also invited articles the learning processes related to their acquisition and assessment of results), technological (computer, video, audio and print), and organizational (legislation, administration, implementation and teacher enhancement). Insofar as technology is playing an increasing role both in the understanding and the development of mathematics, biology, chemistry, physics, computer science and education disciplines and in the delivery of information, the journal includes it as a component of mathematics, biology, chemistry, physics, computer science and education. The journal provides a stimulating and informative variety of papers geared toward theory and practice in the hope that common information shared among a broad coalition of individuals and groups involved in mathematics, biology, chemistry, physics, computer science and education will facilitate future efforts. In addition to works in the fields mentioned above and case studies of exemplary implementations, the journal publishes reviews of books, media, software and relevant products to help reach our common goal: excellence in mathematics, biology, chemistry, physics, computer science and education.</p><p align="justify"> </p>UIN Mahmud Yunus Batusangkaren-USSainstek : Jurnal Sains dan Teknologi2085-8019<p>Authors who publish with this journal agree to the following terms:<br /><br /></p><ul><li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a title="CC BY-NC-ND" href="https://creativecommons.org/licenses/by-nc-nd/4.0/">Creative Commons Attribution License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li></ul><ul><li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li></ul><ul><li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.</li></ul>Characterization and Antioxidant Activity of Herbal Tea from Gambir Leaves (Uncaria gambir) with Different Drying Processes
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek/article/view/7719
<p><span>Recently, natural antioxidants have been explored to reduce the side effects of synthetic antioxidants. Plants from the Rubiaceae family have strong antioxidants and are widely used in food and cosmetic preparations. his study aims to determine gambir leaf herbal tea's physical-chemical characterization and antioxidant activity (Uncaria gambir) in different drying processes. The processing of drying is drying in direct sunlight and drying with an oven at 60oC for 7 hours. The physical-chemical characterizations are water and ash content, pH, and organoleptic of the herbal tea—the antioxidant activity of the herbal tea determination using the free radical scavenging method 2,2-diphenyl-1-picrylhydrazyl (DPPH). The characteristics compare with SNI 3836 of 2013. The herbal tea of Gambir with oven drying is the best yield (53.21%). The antioxidant activity (IC50) of herbal tea in direct sunlight and oven dryings are 122.44 ppm and 82.21 ppm, respectively.</span></p>Gusti Eva TavitaMega Sari Juane SofianaAsri Mulya AshariRita Kurnia ApindiatiLucky HartantiWarsidah warsidah
Copyright (c) 2023 Gusti Eva Tavita, Mega Sari Juane Sofiana, Asri Mulya Ashari, Rita Kurnia Apindiati, Lucky Hartanti, Warsidah
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2023-12-312023-12-31152697310.31958/js.v15i2.7719Analysis of the Quality of Isolated DNA in the Making of Guinea Pig DNA Test Standards
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek/article/view/7732
<p><span>Analysis of the quality of DNA isolated from the manufacture of species DNA standards is one way to determine the quality of independently made species-specific DNA used in testing species DNA detection. This research was conducted to assess the quality of DNA isolated from the production of guinea pig DNA test standards. The benefit of this research is to provide an alternative reference for manufacturing species DNA standards. Moreover, this research is expected to enrich the methods of testing the quality of DNA isolated from different existing methods, using various test matrices. The DNA isolation method was carried out using the Dneasy Mericon Food kit. The quality of the isolated DNA was analyzed using a nanophotometer, measuring the parameters of concentration and purity values at the A260/A280 ratio. The results of DNA isolation indicated a concentration value of the isolated DNA ranging from 230.2 ng/µL to 238.5 ng/µL, with an average concentration value of 233.7 ng/µL. The purity value, read at the A260/A280 ratio, falls within the range of 2.04 – 2.11. Based on the study's results, it was found that the isolated DNA exhibited good DNA quality, making the DNA test standard suitable for use as a benchmark in species DNA testing.</span></p>Alfi SophianSri UtaminingsihSofia Dyah Utami
Copyright (c) 2023 Alfi Sophian, Sri Utaminingsih, Sofia Dyah Utami
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2023-12-312023-12-31152747710.31958/js.v15i2.7732Implementation of Library Automation in an Information Retrieving System Using the Apriori Algorithm
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek/article/view/8555
<span>Library automation is the process of converting manual systems into digital or electronic ones; it can also be interpreted as the use of machines that act on their own or with self-control without human intervention in the process as a form of application of information technology for the benefit of the library, starting from the acquisition of collections to the enjoyment and access of these collections by users. Library automation is in the form of an information system, where this web-based library information system is expected to provide convenience to both staff and all parties who obtain information about the library without having to go to the library directly, can access it anytime and anywhere, and can answer all the problems that arise. appear. The approach used in this study uses a descriptive qualitative research approach, with the research design using the case study method. In contrast, the case raised is "Implementation of Library Automation Systems at SMK Negeri 1 Batusangkar". At the final stage of the research, it can be concluded that the information system created can help the administrator arrange books on a special shelf for books produced through an a priori calculation process. The information system created can provide recommendations to students for books produced through an a priori calculation process based on book categories that are interrelated with other categories.</span>Dodi Nofri Yoliadi
Copyright (c) 2023 Dodi Nofri Yoliadi
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2023-12-312023-12-31152788610.31958/js.v15i2.8555Ethnobotany of Plants as Traditional Food Additives by the Community in Sitellu Tali Urang Jehe Sub-District Pakpak Bharat District
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek/article/view/9076
<p>Ethnobotany is a science that studies the relationship between humans and plants. This study aims to find out what types of plants are found and used as food additives traditionally, to find out which plant organs will be used as food additives traditionally, and to determine the cultural significance index/Cultural Significance Index (ICS) plants used as traditional Food Additives (BTP) in Sitellu Tali Urang Jehe District. This research is qualitative research and quantitative research. Qualitative research was carried out by calculating the presentation of plant species, and plant organs and calculating cultural interest index values, while qualitative research was carried out by participatory observation, where the researcher was involved in the informants' daily activities. The results of the study obtained 7 typical traditional plants used as food additives namely Rhinacanthus sp, Acmella oleracea (L.) R.K. Jansen, Curculigo sp, Zanthoxylum piperitum, Etlingera elatior J, Allium schoenoprasom and Solanum sp. Based on the research results, it can be concluded that there are 26 plant species belonging to 13 families. Plant organs used in food additives are: Leaves 27%, Rhizomes 23,1%, Fruits 34,6%, Stems 3,8% and Tubers 11,5%. The calculation of the ICS value of shallot plants has the highest preference or importance value among other plants, namely 50, while cassava leaves and lime recipes have the lowest importance value among other plants, namely 4.</p>Firra SyahfitriMuhammad IdrisZahratul Idami
Copyright (c) 2023 Firra Syahfitri, M Idris, Zahratul Idami
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2023-12-312023-12-31152879710.31958/js.v15i2.9076Stability Analysis of Fixed Points in Forest Biomass Depletion Model
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek/article/view/9240
The main focus of this article is to present a model that explains the depletion in forest biomass due to population size , population pressure , and industrialization . This research explores the complex relationship between forest biomass, population growth, and industrialization. The model generates four fixed points that are all non-negative, and they are known as and . The article proceeds to analyze the stability of these fixed points in the context of forest biomass depletion. It is discovered that the fixed points and are saddle points and not stable, while the fixed point is stable if it meets certain conditions. The article concludes by carrying out numerical simulations to determine the equilibrium point of the model, which shows that forest resource biomass stability declines as population size, population pressure, and industrialization increase. The simulations reveal that population growth results in a depletion in forest resource biomass, while the opposite is true for the positive impact that forest resource biomass on population levels. Consequently, it is essential to regulate population density and industrialization to manage population growth and protect forest resources.Vivi RamdhaniYolanda Rahmi Safitri
Copyright (c) 2023 Vivi Ramdhani, Yolanda Rahmi Safitri
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2023-12-312023-12-311529810910.31958/js.v15i2.9240Implementation of String Matching Algorithm with Finite Automata in The Indonesian-Korean Dictionary Application
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek/article/view/10487
<p>Foreign languages become a connection both in terms of communication, association, culture, and science in the digital era. One of these languages is the Korean language, which has gained significant popularity among Indonesian people. However, learning the Korean language can be challenging due to its distinct alphabet compared to the Indonesian alphabet. Therefore, the user-friendly dictionary is needed for Indonesian people, namely the Indonesian-Korean Dictionary based on Android platform. This dictionary implements Finite Automata for string searching. The system matches the user's input string with the strings in the database. The output of this application includes the matched words and the search time. Based on the results of 10 tests system using Finite Automata, the system's efficiency in processing search patterns showing the average running time is 15.8 ms. Additionally, after conducting an in-depth analysis of the algorithm's time complexity, it was confirmed to have a time complexity of O(n<sup>3</sup>). This demonstrates that the system successfully matches strings effectively and produces reliable results.</p>Muhammad IkhsanSupiyandi SupiyandiMuhammad Fahri Syuhada
Copyright (c) 2023 Muhammad Ikhsan, Supiyandi Supiyandi, Muhammad Fahri Syuhada
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2023-12-312023-12-3115211011910.31958/js.v15i2.10487Distribution of Electromagnetic Radiation on Television
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek/article/view/10511
Electromagnetic radiation on television has been analyzed. The aim is to create a radiation distribution pattern and compare the electromagnetic radiation of Tube television and LED television. In this study, radiation measurements using an electromagnetic radiation sensor. Radiation exposure dose measurements were carried out at 25 measurement points in the television room, namely 5 points each on the track and 1 point in the center of the radiation source. The data processing method uses Scilab to create radiation distribution patterns. The results of data processing showed that the largest radiation exposure dose was on line C (in front of television) for 60 minutes. The radiation value of Tube television is greater than the radiation value of LED television. The isodose contour shows the radiation exposure dose value of 0 at a distance of 2.5 m from the TV, which is the safe limit for watching.Reskiyati ReskiyatiAnis Nisma YantiSitti RugayyaKasman KasmanHosiana MD LabaniaBadaruddin BadaruddinAgung Danu Wijaya
Copyright (c) 2023 Reskiyati, Anis Nismayanti, Sitti Rugayya, Kasman, Hosiana MD Labania, Badaruddin, Agung Danu Wijaya
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2023-12-312023-12-3115212012710.31958/js.v15i2.10511Characterization and Analysis of Activated Carbon from Coconut Shells Applied to Supercapacitors
https://ojs.iainbatusangkar.ac.id/ojs/index.php/sainstek/article/view/10605
<p class="Default"><span>Activated carbon is used materials as an electrode for supercapacitors. The aim of this research is to characterize and analyze activated carbon for results with high specific surface area, chemical resistance, electrical conductivity, and affordability. The pyrolysis technique is used in the activation process to remove water content and achieve optimal carbonization at an activation temperature of 600°C. For chemical activation, the carbon is immersed in 10% KOH and 10% Na2CO3 activating agents. The X-RD results in crystalline phases of graphite at peaks 25° and 44°, showing diffraction peaks of carbon and graphite. SEM characterization microstructure morphology at 3000 times magnification, with a 10 µm image size, the formation of porosity that carbon activation. The iodine adsorption measurement KOH-activated carbon sample is 630.70 mg/g, and Na2CO3 activation at 567.89 mg/g. Conductivity measurement results indicate that the conductivity values of activated carbon with the addition of KOH and Na2CO3 activation, measuring 1724.10 S/m and 1660.60 S/m.</span></p>Andi Ikhtiar BaktiHandy Indra Regain MoseyJumriadi Jumriadi
Copyright (c) 2023 Andi Ikhtiar Bakti, Handy Indra Regain Mosey, Jumriadi
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2023-12-312023-12-3115212813310.31958/js.v15i2.10605