bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of pH on Trace Elements Removal from Batteries and Compact Disks by Aspergillus terreus Pellets
Authors: Murtadha Abdulzahraa Makhrib , Al-Shammari Rana Hadi Hameed , Alshammary Assal Ghazi
Published: March 2024

Background: The aim of this study is the removal of three trace elements (Nickle Ni, Cadmium Cd and Lead Pb) by an environmentally friendly method from Batteries and compact discs. This study aimed to rapidly remove trace elements from E-waste (batteries) by filamentous fungi pellets. Methods: Aspergillus was the best heavy metal tolerated isolate under the following incubation parameters: pH (5), temperature (25°C), ground electronic waste powder doses (0.5, 1 and 1.5 g/L) absorbed by fungal pellets biomass 10 gm/L of wet weight. Result: The results showed the best removal percentage R% of Ni, Cd and Pb removal were (89,91and 96) observed at pH 5. Images from SEM showed accumulations of metal particles on the surface of the fungal hyphae and Fourier Transform Infra-Red Spectroscopy (FT-IR) was used to determine the effective groups in the fungal cell wall responsible of biosorption of trace elements and This study indicates that an application may be possible Aspergillus terreus as a promising candidate for biological sorption and recycling of trace elements and as an ecologically friendly and effective process in terms of time and cost.
Functionality of Pizza Cheese as Affected Using Saccharomyces boulardii Adjunct Culture During Refrigerated Storage
Authors: Bihola Ankit , Jana Atanu H. , Parmar Satish C. , Adil Shaikh
Published: March 2024

Background: Mozzarella/Pizza cheese remains the preferred choice for topping pizza. There is currently no information available on the production of Pizza cheese employing Saccharomyces boulardii as an adjunct culture. The research was conducted to study the influence of S. boulardii adjunct culture on the functional properties of Pizza cheese during refrigerated storage. Methods: Experimental Pizza cheese was manufactured using a blend of homogenized and unhomogenized milks (1:1; cheese designated as CBHM). Control cheese was prepared from unhomogenized milk involving stretching of curd, post whey draining. Result: The baking properties viz., meltability as well as melting time were markedly affected by T, P and the interaction TxP. The fat leakage and stretch length of cheeses were markedly affected by T and P only. The melt and fat leakage values exhibited marked increase with the advancement of the storage period. It is recommended to consume such cheese before 21 days since CBHM cheese elicits the desirable baking characteristics up to 21 days.
Preservice Physics Teacher Views on Scientist's Role in Physics Teaching and Learning
Authors: Sulaeman Nurul Fitriyah , Nuryadin Atin , Efwinda Shelly , Subagiyo Lambang , Dinurrohmah Syayidah , Tandra Tan Fahrur Rozy , Takebayashi Tomohiro
Published: March 2024

This qualitative study explores how preservice physics teachers think about the role that scientists play in the teaching and learning of physics. Our participants were 33 preservice physics teachers in their first year participating in a scientist partnership program through online meetings. Participants' responses were collected through an essay questionnaire, and the result was analyzed with co-occurrence network analysis. Our research shows that preservice physics teachers have a positive perspective on scientists. The primary role of a scientist is related to a person with sufficient knowledge and opinion about physics. Their role is also related to the experiment and research result. Moreover, their innovation and discovery of new physics-related things also became their central role. After preservice physics teachers interact with scientists, they have higher motivation to learn physics. Our findings suggest that the activity facilitating interaction with professional scientists must be encouraged during the preservice physics teacher program.
Implementation of Problem-Based Learning to Improve Cognitive Understanding and Quality of Learning of Global Warming's Topic
Authors: Anggraeni Anggian , Kholifah Kholifah , Suliyanah Suliyanah
Published: March 2024

Implementation of one learning model in the classroom will stimulate student learning outcomes. Class X-1 at SMA Negeri 13 Surabaya shows that student learning outcomes must be upgraded based on the researcher’s observation. The objective of fulfilling the Problem-Based Learning model with the Lesson Study approach in this research is to upgrade the cognitive competencies and the value of learning in class X-1 SMA Negeri 13 Surabaya. This type of research is Classroom Action Research, with a total research target of 36 students in class X-1 SMA Negeri 13 Surabaya. The teacher conducts learning for three cycles on global warming material, with each cycle using a lesson study approach. Research data was attained from observer observations and data on students' cognitive abilities. Then, it was analyzed to define the percentage of learning completion and the intensification of cognitive competencies using n-gain. The research results show an improvement in cognitive competencies with a value of 0.557 in the moderate category. Apart from that, the research results show an improvement in the percentage of learning operations. Therefore, it can be established that the research directed by the teacher can develop cognitive competencies and the quality of learning in class X-1 SMA Negeri 13 Surabaya.
Analysis of the Impact of ChatGPT Usage in Direct Current Physics Material on Enhancing Students' Higher-Order Thinking Skills (HOTS) during the Merdeka Belajar
Authors: Farizi Zakaria Al , Sahlan Sahlan , Prasetyo Erwin , Fitriani Nadya , Laleng Elyakim Mau , Tiar Hamzarudin Hikma , Anwar Zaina
Published: March 2024

This study examines the influence of using ChatGPT to enhance students' higher-order thinking Skills (HOTS), particularly within the context of the "Merdeka Belajar" (Freedom to Learn) era in Indonesia. This inquiry arises from Indonesian students' low literacy and numeracy skills, as indicated by the PISA assessment. Employing a quasi-experimental method, the research analyzes the changes in students' HOTS before and after the ChatGPT-assisted instruction intervention within the "Merdeka Belajar" curriculum framework. The study's findings reveal a significant improvement in students' HOTS within the experimental group that utilized ChatGPT, as compared to the control group. Data analysis underscores the positive impact of integrating ChatGPT into "Merdeka Belajar"-based teaching methods, substantially enhancing students' HOTS. These results align with prior literature highlighting the role of AI technology in advancing education and fostering higher-order thinking abilities. It is imperative to consider that the effective utilization of AI technology should be complemented by appropriate teaching approaches to prepare students for future challenges.  The implications of this research indicate that ChatGPT can be considered an innovative strategy to support Merdeka Belajar-based learning in Indonesia.
Development of Android-based Interactive Learning Media to Improve Student Understanding Through Experiments on Optical Equipment Materials
Authors: Aini Nur , Rusdiana Dadi
Published: March 2024

Learning media based on the Industrial Revolution 4.0 are required to link learning with technical advancements and dramatically improve the learning experience. This study aims to (1) create a product in the form of Android-based mobile-learning media that can carry out virtual experiments on learning about image creation in mirrors. (2) Assessing the practicality of the learning medium created for conducting experiments. (3) Understanding students' reactions to learning media based on Android. (4) Understanding students' comprehension of experiments utilizing the media generated. This research is development research, or R&D, based on the ADDIE development paradigm. There are five stages: 1) analysis, 2) design, 3) development, 4) implementation, and 5) evaluation. The subjects in this research were 28 class XI Science students. This research design is a one-group pretest-posttest design. Questionnaires and interviews were used to collect data regarding suitability and student responses in this research. The data analysis technique employed in this research uses the statistical Wilcoxon and n-gain tests. The Wilcoxon test results obtained a sign value (0.000) < 0.05, indicating differences in student learning outcomes before and after treatment, and the N-Gain test results showed that 50% of students had high understanding and 32% had moderate understanding. So the research findings reveal the feasibility of using Android-based interactive learning media to boost student knowledge through experiments on optical materials.
PEMANFAATAN IKAN MANYUNG (Arius thalassiunus) SEBAGAI PUPUK BOKASHI UNTUK MEDIA TANAM BIBIT TREMBESI (Samanea saman)
Authors: La-Upe Muhammad Fajar Rahman , Achmad Basir , Rukmini Rukmini , Biyatmoko Danang
Published: March 2024

Kusan Hilir Sub-district is one of the coastal sub-districts in Tanah Bumbu Regency where most of the people work as fishermen.  Fish caught by fishermen that do not have high selling value such as otek fish or manyung fish, and tembang fish or sardinella fish are often thrown into the sea so that they can pollute marine waters. The remaining fish or fish that are wasted have organic value, both organic-N, organic-P, and organic-K. The purpose of this study was to analyze the effect of using otek fish bokashi, firewood husks, and subsoil soil on the growing power of trambesi plants and determine the best composition of fish bokashi produced based on biomass in plants. The research was carried out using the Completely Randomized Design (CRD) method with 6 treatments and 5 replications with 3 plants and placed randomly by doing random numbers in the excel application with the treatment code P0 100% subsoil soil, 0% fish bokashi, 0% burnt husk, P1 subsoil 90%, fish bokashi 5%, burnt husk 5%, P2 subsoil 80%, fish bokashi 10%, burnt husk 10%, P3 subsoil 70%, fish bokashi 15%, burnt husk 15%, P4 subsoil 60%, fish bokashi 20%, burnt husk 20%, and P5 soil 50%, fish bokashi 25%, burnt husk 25%. Data analysis used in this study used the Anova test followed by the DMRT (Duncan Multiple Range Test) test. The results of observations or weighing on the wet weight and dry weight of plant biomass show that the treatment with the composition of 50% soil planting media, 25% fish bokashi, 25% burnt husk with an average wet weight of 174.44g and a dry weight of 88.64g has a very significant effect on 90 day trambesi seedlings, although the treatment with the composition of 90% subsoil soil planting media, 5% fish bokashi, 5% burnt husk, and the composition of 80% subsoil soil planting media, 10% fish bokashi, 10% burnt husk is not significantly different.
STRATEGI PENGEMBANGAN BUDIDAYA IKAN DI KAMPUNG IWAK KELURAHAN MENTAOS KOTA BANJARBARU
Authors: Hutauruk Sanggam B Bomerson , Fauzana Noor Arida , Slamat Slamat , Agusliani Erma
Published: March 2024

The internal and external factors summarized can be the basis for determining a more focused strategy for developing fish cultivation in the Mentaos iwak village, Banjarbaru City, which has so far been untouched. The research aims to analyze the strategy for developing fish cultivation in Kampung Iwak Mentaos Village,  Banjarbaru City. The research was carried out for 5 months, with data collection taking place in Kampung Iwak,  Mentaos Village, Banjarbaru City, South Kalimantan Province. The type of data in this research uses primary data and secondary data. The data analysis technique to answer the objective is to describe the profile of fish cultivation that has been carried out in the Kampung iwak Mentaos village, descriptive analysis is used, to formulate a strategy for developing fish cultivation in the Kampung iwak Mentaos village, SWOT analysis is used. The profile of fish cultivation that has been carried out in the Mentaos iwak village was founded in 1992. The age of the cultivators ranges from 35 years to >57 years. The area of Kampung Iwak Mentaos Village is ± 47 Ha / 476.1396 m2, quantitatively there are around 205 pond plots consisting of nursery ponds, enlargement ponds and mixed ponds (between nursery and enlargement). Pool area starts from 200m2 to >1000m2. Types of fish that are widely cultivated in iwak villages include tilapia, gourami, catfish and other freshwater fish. The strategy for developing fish cultivation in Kampung iwak, Mentaos village is based on quadrant < 1, which is a very profitable situation. The main strategy for fish cultivation in Kampung Iwak, Mentaos Village, Mentaos Subdistrict, is to become an area with a fisheries tourism attraction which is the basis of strength so that it can take advantage of existing opportunities.
HABITAT MIKRO TABAT BARITO (Ficus Deltoidea Jack) DI KELURAHAN JAMBU KECAMATAN TEWEH BARU DAN DESA PENDREH KECAMATAN TEWEH TENGAH KABUPATEN BARITO UTARA PROVINSI KALIMANTAN TENGAH
Authors: Nisa Fitriatun , Asy'ari Mufidah , Fithria Abdi , Hatta Gusti Muhammad
Published: March 2024

The high diversity of plants in Indonesia provides many benefits for the community, one of which is the use of plants as traditional medicines so that the prospects for rnedicinal plant agro-industry in lndonesia are very large. The exploitation of forests and land for plantation and rnining activities in North Barito District is currently threatening the existence of the tabat barito as one of the plants that live in the forest. The objectives of this study were to identify the microhabitat characteristics of barito tabat in its native habitat. Tabat barito was found to live attached to 2 types of host trees, namely kuyum bakei trees (Elaeocarpus sp. ) and kacuhui trees (Shorea sp.). These two types of host plants have similarities in terms of habitat where they grow and similar trunk characteristics, namely thick, grooved bark, easily cracked and porous and can peel. The microclimatic conditions measured were elevation 29 - 64, ternperature range 32 - 33.1 "C, relative humidity 58 - 67% and light intensity 394-732 lux.
PEMANFAATAN LIMBAH SERBUK GERGAJIAN KAYU ULIN (Eusideroxylon zwageri T & B) UNTUK MENURUNKAN KADAR FECAL COLIFORM AIR SUNGAI
Authors: Laksono Eko Setyo , Kissinger Kissinger , Suyanto Suyanto , Achmad Basir
Published: March 2024

Martapura river water is included in categories that have a fairly high bacterial content, which is 21,333 colonies/100 ml. The optimal value of water quality standards to be met with water treatment businesses is the use of ironwood sawdust waste. Bacteria in water attach most of their lives to suspension particles, so microscopic organisms are also separated or filtered. The purpose of this study was to analyze fecal coliform in river water and analyze the volume of ironwood sawdust to reduce fecal coliform levels in river water. Martapura river water contains the highest fecal 1,800MPN/100ml and the lowest 1,600MPN/100 ml, according to the Minister of the Republic of Indonesia No. 22 of 2021 concerning the implementation of environmental protection and management related to standards, including category two which is used as water tourism facilities/infrastructure, freshwater fish farming, animal husbandry, plant irrigation and other activities requiring the same water quality and use. Ironwood sawdust as much as 25% or 90 grams proved most effective to be used to reduce fecal levels with an average value on the first day of 1,650 MPN/100ml and on the third day with treatment carried out up to indigo 350 MPN/100ml, so that the difference reached a value of 1,300 MPN/100ml.
STRATEGI PENGEMBANGAN BANK SAMPAH DI KABUPATEN BARITO TIMUR
Authors: Yuchitadewi Pitaloka , Mahreda Emmy Sri , Mahyudin Rizqi Putri , Mirwan Agus
Published: March 2024

The significant growth in the amount of waste can cause various problems, so management efforts are needed to convert waste into more useful and useful material. Waste banks are facilities used as an alternative to waste management to reduce environmental pollution that will be caused by waste generation. This study aims to analyze the internal and external factors that influence the development of the Mentari Tamiang Layang Waste Bank is in quadrant l, which is in the alternative strategy section. The results of the SWOT matrix showed that there are nine alternatives that can be carried out by the Waste Bank, namely (1) improving Waste Bank services to customers by optimizrng existing facilities, (2) making innovations and increasing creativity to process recycled waste products, (3) marketing products from recycled waste, (4) requiring local government support so that the Waste Bank is more advanced and developed. (5) collaborate with parties that can support the development of the Waste Bank, (6) improve the implementation of larvs and regulations in waste management, (7) increase public awareness in preserving the environment by conducting socialization activities, (8) coordinate with the Regional Government related to the development of the Waste Bank, and (9) maintain bid prices so that cooperation with customers remains well establi shed.
AKURASI ESTIMASI PRODUKSI PADI DENGAN METODE NDVI BERDASARKAN SENTINEL-2 DI KABUPATEN TANAH LAUT KALIMANTAN SELATAN
Authors: Rahmadi Abdul Holid , Wahdah Raihani , Razie Fakhrur , Susanti Hilda
Published: March 2024

Remote sensing is a technology that is very useful in every step of the planning process and has been used in developed countries and several regions in developing countries. The aim of this research is to interpret rice production in Tanah Laut Regency using the NDVI method based on Sentinel-2 and determine the accuracy of rice production estimates in Tanah Laut Regency using the NDVI method based on Sentinel-2. Research methods include preparation, measurement principles, data collection, radiometric correction, geometric correction, creating a vegetation index, determining the best vegetation index, estimating rice production, accuracy testing, image analysis, and rice production potential. The result of this research is a rice production estimation model of y = 0.341 + 4.319 NDVI. The NDVI estimation results in Tanah Laut Regency range from 1.36 t ha-1 to 3.36 t ha-1 with an average production of 2.67 t ha-1. The results of the analysis show that there is no real difference at the 95% confidence level between the results of the NDVI estimation of rice production using Sentinel-2 imagery and the results of the field survey of rice production based on a coefficient of determination (R2) of 0.749 and a standard error (SE) of 0.29 t ha-1.
PENGELOLAAN KUALITAS AIR ASAM TAMBANG SETTLING POND PADA KEGIATAN PERTAMBANGAN BATUBARA DI KABUPATEN TANAH LAUT
Authors: Anggaita Dona Rosti , Suyanto Suyanto , Nugroho Yusanto , Razie Fakhrur
Published: March 2024

Management of acid mine drainage is necessary to ensure that the seetlingpond outlet meets the required environmental quality standards. This research was conducted at the seetlingpond location of PT. Jorong Barutama Greston. The aim of this research is to analyze the relationship between the seetlingpond inlet discharge and the use of lime using manual and automatic methods with the outlet parameter sizes being pH Fe, Mn and Cd. Data collection was carried out for approximately 1 year. Observations were taken on a monthly average, both discharge, amount of lime and results of chemical analysis of water quality. The results showed that the method of using lime automatically produces a significant linear relationship between the amount of discharge and the use of lime, while the use of lime manually does not occur consistently between the amount of discharge and the amount of lime so that the use, for the results of water quality analysis either manually or using a lime mixing machine, both produce water quality output that meets environmental quality standards based on the standards of South Kalimantan Governor Regulation No. 36 of 2008.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI PERMINTAAN AIR BERSIH UNTUK MEMENUHI KEBUTUHAN PELAYANAN AIR BERSIH DI PT. AIR MINUM INTAN BANJAR
Authors: Bisma Bayu Cipta Setia , Lilimantik Emmy , Fauzana Noor Arida , Aziz Yusuf
Published: March 2024

The Regional Government of Banjar Regency and Banjarbaru City through PT. Air Minum Intan Banjar is responsible for the production and marketing of clean water. Government through PT. Air Minum Intan Banjar Water certainly continues to strive to meet the needs of the community for clean water through the provision of clean water. Especially in Branch 2 Services of PT. Air Minum Intan Banjar As a buffer area for the capital city of Banjarmasin The need for clean water is a very vital factor in daily life and the increasing demand of the community, which is reflected by the increasing number of customers of PT. Air Minum Intan Banjar. The research was conducted in Banjar Regency with the number of samples taken as many as 100 (one hundred) respondents in the service area of Branch 2 PT. Air Minum Intan Banjar, which is spread across 7 sub-districts, namely Kertak Hanyar, Sei Tabuk, Tatah Makmur, Aluh-Aluh, Beruntung Baru, Martapura Barat and Gambut, was conducted with a Questionnaire Survey of PT. Air Minum Intan Banjar is selected by proportional stratified random sampling according to location and customer qualification. The dependent variable used in this study is water demand (Y), while the independent variable used in this study is the number of occupants (X1), the amount of income (X2), the type of tariff (X3), customers (X4). Data processing techniques using SPSS applications, using multiple regression analysis of factors affecting clean water demand in Banjar Regency. The results showed that the variables were the number of occupants (X1), the amount of income (X2), and. Type of tariff ( X4) has a positive effect on the consumption of clean water PT. Air Minum Intan Banjar (Y), while the number of customers (X3) negative effects. The community's clean water needs in 2023 at PT. Air Minum Intan Banjar Branch 2 area to serve 7 sub-districts in 2032 is 563,02  liters / second. This study recommends that there is a need for additional production capacity of PT. Intan Banjar Drinking Water so that for areas that have not been served for 24 hours, there needs to be an increase in clean water supply.
The Understanding of Household Livelihood Diversity on Production Forest Areas: A Preliminary Survey on Social Studies
Authors: Santosa Fajar Julian , Widiyanto Widiyanto , Padmaningrum Dwiningtyas , Rubiyanto Cahyo Wisnu
Published: March 2024

Forest resources play an essential role in supporting the livelihoods of forest farming households. Households in this area depend heavily on forest-related activities as a source of income and livelihood. However, forest farming households are often faced with various challenges and uncertainties due to climate change, market fluctuations, limited access to land ownership, lack of infrastructure and technological support, and developments in socio-economic conditions that change the values and structure of people's lives. This study is a preliminary survey as an initial process of collecting information and data before carrying out the primary research. This preliminary survey aims to gain an initial understanding of the diversity of forest farmer household livelihoods. Data was collected through a rapid study of 30 households in Gandu Village. Then, data was identified according to information needs and planning the next steps. The results of this study show that forest farming households in Gandu Village diversify their livelihoods in both the agricultural and non-agricultural sectors. The diversity value in the non-agricultural sector shows an average figure of 2.1, which means that each household does not only depend on one source of income. However, they will diversify the number of livelihoods in the amount of 2.1 to meet their household's living needs. The findings of this preliminary survey can become initial data and contribute to further research.
Analyzing the Movie "Hidden Figures" (2016): A Comprehensive Examination of Race and Gender Inequality
Authors: Amanda Karina Rizky , Purwanto Nisa Rahmayanti , Ramadhani Vianita Nur Fitri Putri , Siswandini Nabila Putri , Angraini Haniya Meisya
Published: March 2024

Hidden Figures is a movie based on a true story that told a story about the challenges of being black race women due to racial and gender discrimination in the society at that time. This study aims to examine how Hidden Figures portrays black feminism of the injustice against the black race and the complexities of women in gender inequality, particularly within the historical context that highlights the experiences of women. This research is based on descriptive analysis methods. Descriptive analysis is used to reveal the representation of gender inequality, racial injustice, and black women feminism in Hidden Figures by examining the characters' interactions, dialogue, and narrative choices. The analysis revealed the injustice against the black race in society experienced by the characters in the movie. Furthermore, this study showed gender inequality that happened in the movie Hidden Figures. It can be concluded that Hidden Figures portrays issues such as racial and gender barriers, especially to black women in workspace. In addition, the movie Hidden Figures also added a conclusion to this study, in which complexity of women in gender inequality is a concerning issue in the film.
Implementation of Digital Teaching Material Containing Local Wisdom Values for Strengthening Pancasila Student Profile Project (P5) of Independent Curriculum in Social Studies Learning
Authors: Holilah Mina , Nur Muhammad , Hardianti Retno Ayu , Aulia Qori
Published: March 2024

The Strengthening Pancasila Student Profile (P5) project is one of the main programs developed by the government in the Merdeka curriculum at the school level. This policy needs to be responded to positively to achieve the expected Pancasila Student Profile. P5 is a number of character traits and competencies of students which are based on the values of Pancasila including an attitude of faith, devotion to God Almighty, noble character, global diversity, independence, mutual cooperation, critical reasoning and creativity. This research focuses on the implementation the development of digital teaching materials containing local wisdom in P5 as an effort to support the successful achievement of the Pancasila Student Profile in the Independent Curriculum which is full of the values of Pancasila based on the characteristics of educational units in Bandung. The research method used is descriptive quantitative with questionnaires and interviews involving social studies teachers in Bandung as a life curriculum in the field implementing the Merdeka Curriculum. The research results show that P5 in Greater Bandung has been running well through various project model strategies, inserting local wisdom values typical of the area around the school, and utilizing digital teaching materials as a supporting tool.
Implementation and Obstacles to Student Character Education at SMAN 1 Anjir Muara
Authors: Aniah Nor , Abbas Ersis Warmansyah , Mutiani Mutiani , Sari Raihanah , Jumriani Jumriani
Published: March 2024

The character can be formed through education, one of the institutions that can carry out character education is the school. One of the means for building student character in schools is through the learning process, school culture, and extracurricular activities. This study aims to describe the implementation of character education for students at SMAN 1 Anjir Muara and find out the obstacles at SMAN 1 Anjir Muara in implementing character education for students. The approach used in this study uses a qualitative descriptive approach. The observation, interview, and documentation techniques were used to collect data obtained from informants or institutions related to this research. To analyze the data in this study used data reduction techniques, data display, and verification.The results of this study state that character education at SMAN 1 Anjir Muara is implemented through integration into learning activities including developing character values in learning tools such as lesson plans; school culture is classified into three types of activities, namely routine, spontaneous, and exemplary activities; and extracurricular activities such as scouting, osis, and PMR. In addition, there are obstacles in the implementation of character education for students at SMAN 1 Anjir Muara, who come from the family environment and technological advances that are not in line with the education implemented in the school environment.
MENGEMBANGKAN KEMAMPUAN SAINS ANAK MENGGUNAKAN MODEL PJBL DAN MEDIA LOOSE PARTS PADA KELOMPOK B
Authors: Rahma Kabila , Anggreani Chresty
Published: March 2024

Permasalahan pada penelitian ini yaitu kurangnya pengasahan peningkatan kemampuan sains anak dan tidak melibatkan anak dalam percobaan langsung saat pembelajaran sains sehingga anak kurang aktif dalam pembelajaran. Penelitian ini bertujuan mendeskripsikan aktivitas yang dilakukan guru dan menganalisis aktivitas yang dilakukan anak, serta menganalisis hasil pengembangan kemampuan sains anak. Alat pengumpulan data yang digunakan berupa observasi, wawancara, dan dokumentasi. Subyek yang digunakan dalam penelitian adalah kelompok B TK Kenanga Banjarmasin sebanyak 11 anak yang terdiri dari 7 perempuan dan 4 laki-laki. Penelitian ini dijalankan dalam dua siklus dan setiap siklus memiliki tiga pertemuan. Hasil penelitian menunjukan dengan memanfaatkan model project based learning dan media loose parts dapat meningkatkan kemampuan sains anak, sebagaimana dibuktikan dengan aktivitas guru siklus 1 pertemuan 1 guru memperoleh persentase 75%, lalu diiringi aktivitas anak memperoleh persentase 59,08% kemudian diiringi kemampuan sains anak memperoleh persentase 72,71%. Kemudian pada siklus 2 pertemuan 3 guru memperoleh persentase 100%, lalu diiringi aktivitas anak memperoleh persentase 88,6% kemudian diiringi hasil kemampuan sains anak memperoleh persentase 91,47%. Disarankan penggunaan model Project Based Learning dan media Loose Parts sebagai referensi pembelajaran efektif guna mewujudkan hasil peningkatan kemampuan sains anak dengan baik.
MENGEMBANGKAN MOTORIK HALUS (MENGGUNTING) MENGGUNAKAN MODEL DIRECT INSTRUCTION DAN MEDIA GAMBAR PADA TK KELOMPOK B
Authors: Rezkya Jemiatur , Faqihatuddiniyah Faqihatuddiniyah
Published: March 2024

Permasalahan yang terdapat dalam penelitian ini yaitu rendahnya perkembangan aspek motorik halus anak dalam menggunting dimana ditemukan masih terdapat beberapa anak yang kurang dalam mengenal angka pada kelompok B TK Aisyiyah Bustanul Athfal 37 Banjarmasin. Penelitian ini bertujuan untuk mendeskripsikan aktivitas guru, menganalisis aktivitas anak dan menganalisis hasil perkembangan anak dalam pengembangan aspek motorik halus anak khususnya dalam menggunting. Jenis penelitian yang dipakai yaitu penelitian tindakan kelas (PTK) yang dilakukan selama 2 siklus dengan 3 kali pertemuan, penelitian ini dilakukan di kelompok B TK Aisyiyah Bustanul Athfal 37 Banjarmasin Tahun Pelajaran 2022/2023 yang terdiri dari 10 anak. Jenis data yang dipaparkan merupakan data aktivitas guru, aktivitas anak, dan kemampuan motorik halus anak khusunya dalam menggunting yang diperoleh melalui lembar observasi pada saat kegiatan pembelajaran. Tolak ukur keberhasilan penelitian yakni 87% dengan kriteria Hampir Seluruh Siswa Aktif. Berdasarkan data temuan dan hasil dari penelitian ini, bisa ditarik kesimpulan bahwa kegiatan belajar mengajar dengan menerapkan model direct instruction dan media gambar mampu memberikan peningkatan terhadap kualitas aktivitas guru, aktivitas anak dan kemampuan motorik anak.
MENGEMBANGKAN ASPEK SOSIAL EMOSIONAL ANAK MENGGUNAKAN MODEL COOPERATIVE LEARNING, METODE BERCERITA, METODE REWARD AND PUNISHMENT
Authors: Salsabila Algina , Wahyudi Mohammad Dani
Published: March 2024

Rendahnya aspek sosial emosional pada rasa tanggung jawab dan kesadaran diri anak khususnya dalam merapikan mainan setelah anak selesai bermain merupakan permasalahan pada penelitian ini. Penelitian ini bertujuan untuk mendeskripsikan aktivitas guru dan menganalisis kemampuan sosial emosional anak dalam bertanggung jawab merapikan mainan menggunakan kombinasi metode reward and punishment, metode bercerita, dan model cooperative learning pada anak di TK B di TK Kenanga. Jenis penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK), dan dilaksanakan dalam tiga siklus. Penelitian dilakukan pada Kelompok B dengan 10 anak dan 1 guru TK Kenanga Banjarmasin sebagai subjek penelitian. Berdasarkan hasil penelitian ini menunjukan hasil perkembangan dengan 80% sesuai dengan indikator keberhasilan anak yaitu aktivitas anak dengan kategori Sangat aktif serta hasil perkembangan sosial emosional anak dengan kategori Berkembang Sangat Baik (BSB). Penggunaan model cooperative learning, bercerita dan metode reward and punishment dapat menjadi solusi pilihan dalam mengembangkan kemampuan sosial emosinal anak dalam merapikan mainan.
MENGEMBANGKAN BAHASA RESEPTIF MENGGUNAKAN MODEL TIME TOKEN, METODE BERCERITA, MEDIA DIGITAL PADA ANAK KELOMPOK B3
Authors: Fitriani Dina Aulia , Sulistiyana Sulistiyana
Published: March 2024

Permasalahan yang didapat pada penelitian ini ialah rendahnya kemampuan bahasa reseptif anak dalam menceritakan kembali apa yang didengar dengan kosakata lebih. Hal ini diisebabkan karena anak mengalami kesulitan dalam memfokuskan perhatian untuk mendengarkan apa yang disampaikan oleh guru serta metode dan media pembelajaran yang digunakan kurang bervariasi. Tujuan dari penelitian ini adalah untuk mendeskripsikan aktivitas guru, serta menganalisis aktivitas anak dan hasil perkembangan bahasa anak dalam menceritakan kembali apa yang didengar dengan kosa kata lebih menggunakan model time token dan metode bercerita dengan media digital. Penelitian ini menggunakan pendekatan kualitatif dengan jenis penelitian tindakan kelas, yang dilaksanakan tiga kali pertemuan. Hasil penelitian menunjukkan bahwa aktivitas guru pada pertemuan 3 dengan kriteria sangat baik. Aktivitas anak pada pertemuan 3 mendapat kategori seluruh anak aktif. Hasil perkembangan anak Pertemuan 3 mencapai 100% dengan kategori berkembang sangat baik (BSB). Hasil penelitian ini dapat dijadikan sebagai bahan masukan dan informasi untuk memilih model pembelajaran.
Reinforcement of concrete beams using waste carbon-nanoclay-fiberglass laminate pieces
Authors: Çelik Zinnur , Turan Emrah , Oltulu Meral , Öner Gülşah
Published: March 2024

In the last few decades, strengthening of structures in need of repair with fiber reinforced polymer (FRP) composite materials produced with different fiber types has gained great importance. Within the scope of this experimental study, the usability of hybrid glass and carbon composite laminates produced for different purposes and later cut into waste was investigated for concrete reinforcement. Hybrid composite laminates were produced in the form of glass-carbon-glass and carbon-glass-carbon, and the effect was investigated in two different sequences in the study. In addition, there are 3 different rates of nanoclay (0.50%, 0.75% and 1.25%) in the production of composite materials, and the effect of nanoclay ratio was investigated. In the study, two different numbers of composite laminates were adhered to the concrete samples produced in 70x70x280 mm dimensions and subjected to flexural strength test. In the Carbon-Glass-Carbon series using triple waste laminate pieces, the highest flexural strength was reported in the CGC-0.75-3 series, which achieved an increase of approximately 55% and 42% compared to the Control and Control-E series. It was determined that the effectiveness of the reinforcement technique of concrete with laminates in flexure did not change significantly depending on the number of laminate pieces. The main mode of failure in the experimental work was due to concrete fracture.
Strengthening of historic masonry vaults with CFRP prepreg
Authors: Tarhan İsmail Hakkı , Uysal Habib
Published: March 2024

Masonry vaults, frequently used in historic buildings to create large openings, have played a critical role in the survival of these buildings to the present day. These structural elements, which have been exposed to destructive effects such as earthquakes for centuries, need strengthening activities in order to transfer cultural heritage to future generations. The use of composite materials with high mechanical properties for strengthening purposes has been a popular method since the beginning of the 21st century, and its effectiveness has been proven. In this study, a masonry vault in the historical redoubts located in Erzurum, Türkiye, was modelled, and the effectiveness of various strengthening scenarios using prepreg composites was investigated. Numerical simulations were conducted with the Finite element method-based macro modelling approach. The investigation revealed that retrofitting arrangements maintained the stress distribution in masonry vaults while reducing maximum tensile stress; intrados reinforcement proved more effective, particularly the intrados-straight retrofit, with a 24% improvement, whereas extrados strengthening showed limited effectiveness.
Effect of soil types on nonlinear earthquake behavior of buildings
Authors: Karalar Memduh , Demirköse Murat , Mert Necati
Published: March 2024

The Winkler method, which is widely used today, assumes that the soil behaves elastically and does not take into account the soil shear stress values, it is insufficient to reflect the actual soil behavior. Especially in the earthquake calculations of rigid and massive structures such as high-rise buildings, dams, suspension bridges, viaducts, it is necessary to consider soil as a dynamic system that changes shape and affects the behavior of the structure in terms of inertia. In response to the effect of soil on the structure, the structure also affects soil both kinematically and dynamically. Thus, in the absence of the structure, the earthquake data, which is only a result of the dynamic behavior of the soil in its internal structure, now acquires a more complex soil motion characteristic that is also affected by the presence of the structure. The observations made in some earthquakes show that the changes between the records taken simultaneously on the building foundation and at soil surface not a point far from foundation, show that the structure also affects soil therefore soil motion in response to the effect of the earthquake on the structure. In this study, the effect of soil types on the nonlinear seismic behavior of reinforced concrete structures was investigated. For this purpose, 7-storey building models with different plans and rigidities were created. The behavior of these models under 11 different earthquake loads for the ZA, ZB, ZC, ZD, ZE soil types specified in the Turkish Building Earthquake Code has been investigated. Analyzes were made using the time history method with the help of the SAP2000 program. As a result of the analysis, the displacements, plastic hinge formation, Effective inter-storey drift and period values obtained for different models were compared.
Size effect on compressive behavior of GFRP bars
Authors: Eryılmaz Yıldırım Meltem , Aybar Kerem , Canbaz Mehmet
Published: March 2024

In the last three decades, studies investigating the use of Glass Fiber Reinforced Polymer (GFRP) bars as an alternative to conventional steel rebars have increased due to their corrosive resistance. In addition to corrosion resistance, GFRP bars utilize high specific tensile strength, which makes them highly desirable in civil engineering applications. However, major design guidelines for GFRP-reinforced concrete structures currently do not consider their compressive contribution. Nevertheless, there is a growing trend in utilizing GFRP bars as compressive elements, driven by various studies demonstrating their ability to bear compressive loads effectively. This increasing demand underscores the need to comprehend the mechanical properties of GFRP bars, particularly in terms of their compressive behavior. Furthermore, a standardized test method to evaluate their compressive properties has not yet been developed. Addressing these gaps, this research paper focuses on investigating the influence of specimen size on the compressive strength of GFRP bars, specifically emphasizing on the compressive properties of GFRP bars. Compressive tests were conducted on GFRP specimens with varying diameters while maintaining a constant slenderness ratio. The findings from these compression tests shed light on the critical role of size in the compressive behavior of GFRP. This research emphasizes the importance of considering size as a significant parameter in designing mechanical properties for GFRP reinforcements.
Structural behavior of historical Obruk Inn under different earthquakes
Authors: Akın Süleyman Kamil , Alagöz Ahmet
Published: March 2024

Masonry structures is one of the most preferred structure types throughout history. The advantageous of these structures can be categorized as longevity, affordability and easy access to materials. Due to a lack of information and constructive errors, masonry structures suffer major damage under effect of earthquakes. While the vertical load carrying capacity of a masonry structure is excellent, its performance under horizontal loads is very poor. The brittle behavior of masonry structures, in particular, causes the structure to suffer significant damage or collapse completely during an earthquake. Türkiye is situated over a major earthquake zone. Throughout history, there has been numerous major earthquakes. These earthquakes have demolished the masonry structures resulted in significant life and economic losses. Therefore, in recent days, the examination of the seismic resilience performance of masonry structures as well as the required strengthening have become a pivotal issue. Thus, the aim of this study is to analyze the seismic performance of historical Obruk Inn subjected to different earthquake effects via finite elements method (FEM). To do this, the plans obtained from on-site inspections for historical Obruk Inn to create structural FEM model and its performance was evaluated under the influence of various earthquake excitations. As a result of the analyses, it was determined that the historical Obruk Inn structure should have immediate be strengthened against a possible earthquake.
ANALISIS USAHA PETERNAKAN KELINCI DI RABBIT FARM, KECAMATAN BUMIAJI KOTA BATU
Authors: Cahyani Fitria Dwi , Dahlan Mufid , Aliyya Wenny Ladhunka Nur
Published: March 2024

Tujuan Penelitian ini adalah untuk menganalisis usaha peternakan kelinci di Rabbit Farm Kecamatan Bumiaji Kota Batu. Metode penelitian ini menggunakan metode deskriptif kualitatif serta kuantitatif dengan melakukan observasi (pengamatan), wawancara dan kuesioner, studi pustaka dan dokumentasi. Variabel yang diamati dari penelitian ini adalah penerimaan, biaya- biaya, keuntungan, skala usaha dan efisiensi usaha. Menggunakan analisis data deskriptif dan ekonomi. Hasil penelitian menunjukkan bahwa usaha peternakan kelinci Rabbit Farm merupakan usaha yang layak dikembangkan, hal ini dapat dibuktikan dengan hasil penerimaan usaha > biaya produksi (Rp 19.045.000,00/bulan > Rp 10.551.602,00/bulan). Total pendapatan usaha peternakan kelinci di Rabbit Farm sebesar Rp 8.493.398,00/bulan, dengan popuasi 400 ekor kelinci dan hasil analisis R/C >1 (1,80 > 1).
Doğru Düşünme, Doğru Karar Verme ve Mantık Eğitimi
Authors: ÇİÇEKDAĞI Caner
Published: March 2024

Doğru düşünme ve doğru kararlar verme için mantık eğitimi önemlidir. Çünkü bazen gençlerin aldığı yanlış kararlar çok önemli sonuçlar doğurmaktadır. Yapılan akıl yürütmelerin sonuçları pratiğe, davranışa dönüştüğü için mantık sadece öğrenilmesi gereken teorik bir bilgi değildir. Bu nedenle mantık eğitiminde uygulamanın ağırlığı olmalıdır. Uygulamanın hayata yansıması da bireylerin iyi düşünmesi şeklinde olacaktır. Doğru düşünmenin akıl yürütmedeki karşılığı kurallara uygun oluşu, bilgideki karşılığı ise gerçeklere uygun oluşudur. Mantık yanlışlarının büyük kısmının bilgi, içerik ve gerçeklik yanlışlarından kaynaklanması nedeniyle mantık eğitiminde mantık yanlışlarına ağırlık verilmelidir. Bilhassa önemli problem durumlarında mantıksal düşünmeye başvurulduğu için mantık kurallarının iyi bilinmesi yanlışa düşmeyi önemli ölçüde engelleyecektir. Ancak yapılan önerilerden insanın saf bir akıl varlığı olması gerektiği anlamı çıkarılmamalıdır çünkü insan aynı zamanda duygu varlığıdır. Böyle olduğu için mantıksal akıl yürütmelerin içeriği ve alınan kararlar üzerinde duyguların önemli bir etkisi vardır. Duygular insanı doğruya ve iyiye götürebileceği gibi tam tersini de yapabileceğinden duygu yönetimi gereklidir. Bu çalışma aracılığıyla mantık eğitiminde doğru düşünmenin zemini olmak üzere öncelikle duygusal dengenin önemine dikkat çekilmesi, daha sonra mantık yanlışları konusuna ağırlık verilmesi ve çalışmadaki amaca yönelik olarak kıyas konusunun bütün derslere yayılmış biçimde işlenilmesi önerilmektedir.
Bir Direniş Biçimi Olarak Sanat: Adorno’da Sanatın Toplum ve Politikayla İlişkisi
Authors: ERKEK Fatma
Published: March 2024

Adorno’ya göre modern kapitalist dünyada kültür endüstrileşmiştir ve sanat eserleri meta haline gelmiştir. Kültür endüstrisi insanları tahakküm altına alarak seçimlerine ve eylemlerine yön verir. Bu endüstri düşünmeyi ve eleştirel bakışı ortadan kaldırarak var olan düzeni olumlar ve bu düzenin varlığını sürdürmesine katkı sağlar. Nitekim, kültürün endüstrileştiği modern kapitalist toplumda sanat özgürleşmeye imkân tanımaktansa bir tahakküm alanına dönüşmüştür. Adorno, sanatın özerk olması gerektiğini vurgulayarak onun “toplumun toplumsal antitezi” olduğunu söyler. Ona göre özerk sanat toplumla bağdaşmaz. Sanat, Ortodoks Marksistlerin savunduğu gibi mevcut toplumu yansıtarak ya da politik sorunları temsil ederek politik olamaz. Adorno’ya göre belli bir sınıfın amaçlarına hizmet eden, bu doğrultuda mesaj veren ve propaganda amacı güden sanatın politikliliğinden de bahsedilemez. Onun için, sanat insanların yabancılaştığı ve bir yanılsama içinde yaşadığı modern kapitalist topluma karşı bir direniş aracıdır. Çünkü özerk sanat, insanları düşünmeye, eleştirmeye yönlendirerek mevcut toplumu olumsuzlar ve alternatif bir topluma işaret eder. Ayrıca bu sanat insanların politik tutumlarını değiştirmeyi amaçlamasa da bunu gerçekleştirir.