Pengaruh Metode Two-stage Mixing Approach (Tsma) Terhadap Kuat Tekan Beton Porous Dengan Variasi Komposisi Agregat Kasar Daur Ulang (Rca)

Beton porous adalah salah satu jenis beton yang mempunyai rongga udara lebih besar sehingga memungkinkan air untuk mengalir melalui rongga beton dan dapat diserap oleh tanah. Adanya rongga udara yang lebih besar, mengakibatkan kuat tekan beton porous lebih rendah dibandingkan beton konvensional. Penggunaan beton porous dapat dikembangkan lagi dengan mengganti sebagian atau seluruh agregat kasar alam (NCA) dengan agregat kasar beton daur ulang (RCA). Kualitas RCA umumnya lebih rendah daripadanNCA, sehingga metodenTwo-Stage Mixing Approach (TSMA) diharapkan dapat meningkatkan kualitas beton porous yang.menggunakan.RCA. Pengujian material pada penelitian ini meliputi berat isi, berat jenis, dan penyerapan air pada agregat kasar. Sedangkan pengujian untuk beton porous meliputi berat isi dan kuat tekan. Uji tekan dilaksanakan untuk mengetahui pengaruh komposisi RCA dan metode pencampuran terhadap kuat tekan beton porous. Persentase RCA yang digunakan yaitu 0%, 25% 50%, 75%, dan 100%, sedangkan metode pencampuran yang digunakan yaitu Normal Mixing Aggregates (NMA) dan Two-Stage Mixing Approach (TSMA). Pengujian tekan dilakukan pada umur beton 28 hari dengan alat Compressing Testing Machine (CTM). Berdasarkan hasil pengujian didapatkan kuat tekan rata-rata maksimum yaitu pada komposisi RCA 100% dan metode TSMA dengan nilai 11,81 MPa. Pada penelitian ini, hasil pengujian kuat tekan memenuhi syarat ACI 522R-10 tentang beton porous

DEVELOPMENT OF A SURROUNDING ENVIRONMENT BASED LEARNING BOOK FOR STUDENTS AT SDN PURWOREJO 03 SANANKULON

The objectives to be achieved in this research are to analyze the Feasibility of the Environment-Based Kewan Lan Wit-Witan Javanese Language Support Book at SDN Purworejo 03 Sanankulon Blitar and to analyze the Effectiveness of the Environment-Based Kewan Lan Wit-Witan Javanese Language Support Book at SDN Purworejo 03 Sanankulon Blitar. This research is included in development research which uses a Research and Development (R&D) approach. This development research is longitudinal (gradually) to develop a new product or improve an existing product and test its effectiveness so that it can function in the wider community. The results of the research are environment-based interactive learning media about animals and plants (Kelantan) by material experts considered appropriate with a percentage of 86.25% media experts rated "appropriate" with a percentage of 85%, and linguists rated "appropriate" with a percentage of 88.60%. Then The level of readability of interactive learning media based on the surrounding environment about animals and plants (Kelantan) by material students is considered very feasible with a percentage of 90%.   Keywords: Javanese; Kewan; Wit-Witan; Supporting Books, Environment &nbsp

Is exposure to social media advertising and promotion associated with e-cigarette use? evidence from Indonesia.

BACKGROUND: E-cigarette use is a growing public health concern globally, including in Indonesia. OBJECTIVE: Our study aimed to assess whether exposure to advertising and promotion in social media is associated with e-cigarette use in Indonesia, an upper-middle-income country. METHODS: We conducted mixed-method research including quantitative and qualitative methods. For the quantitative methods, we did an online survey in the five largest cities in the country with 1,239 participants during September-October 2020. For the qualitative method, we conducted an in-person focused group discussion during November 2020 (while complying to the COVID-19 protocols). RESULTS: We found high rates of e-cigarette ever use (29%) and current use (13%) among study participants. There was high exposure to e-cigarette advertising and promotion in social media, with a majority of participants (84%) reported ever seeing e-cigarette adverts or promotions on Facebook, Instagram, YouTube, and others. Both high rates of e-cigarette use and exposure to social media advertising are associated. Participants reported ever seeing adverts and promotions were 2.91 times and 2.82 times more likely ever to use and currently use e-cigarettes, respectively, after controlling for socioeconomic factors, region, and cigarette smoking status. CONCLUSION: Exposure to social media advertising and promotion is associated with e-cigarette use in Indonesia

The Difficulties and Strategies of Asian EFL Learners in Studying Abroad Context

This article reports on the language learning of Asian English learners in Australia as a target language community. This study's research topic is the difficulties or challenges, and strategies used by the Asian students. Five International Master of Applied Linguistics and TESOL students from China, Japan, Myanmar, and Vietnam are the participants of this study. The data were collected through observation, interview and documentation. The findings of this qualitative study demonstrate that the participants faced some level of difficulty or struggle in all macro skills for a variety of reasons. Surprisingly, the majority of the individuals struggled in speaking skill in the target language community. In terms of learning strategies, the participants used a variety of strategies and made use of their social relationships to aid their learning. Their second preferred strategy is cognitive, followed by metacognitive, which is only used by two participants in dealing with their learning problems

Karakter Produksi dan Heritabilitas Beberapa Mutan Kedelai Hitam pada Generasi M6

Peningkatan produksi kedelai dengan induksi mutasi pada pemuliaan tanaman diharapkan dapat menghasilkan kedelai yang berdaya hasil tinggi. Tujuan penelitian ini untuk mengkaji karakter produksi dan heritabilitas dari beberapa mutan tanaman kedelai hitam generasi M6. Rancangan yang digunakan dalam penelitian ini yaitu rancangan acak kelompok (RAK) non faktorial. Penelitian ini menggunakan 4 genotipe benih kedelai hitam generasi M5 hasil iradiasi sinar gamma dan 3 varietas pembanding yaitu Detam 1, Detam 3 Prida, dan Detam 4 Prida. Parameter yang diamati meliputi umur berbunga, umur panen, bobot polong, jumlah biji tanaman, bobot 100 biji dan bobot biji per tanaman. Data dianalisis dengan uji F dan uji lanjut DMRT taraf 5%. Hasil penelitian menunjukkan umur berbunga dan umur panen genotipe mutan 400/1-2-2-6 dan 256/1-2-9-29 lebih cepat dibandingkan genotipe lain. Bobot polong per tanaman, bobot 100 biji, bobot biji setiap tanaman, dan jumlah biji per tanaman pada genotipe mutan kedelai generasi M6 tidak berbeda nyata dengan varietas pembanding.  Nilai heritabilitas dalam arti luas pada karakter produksi meliputi bobot polong, jumlah biji, bobot 100 biji dan bobot biji per tanaman bernilai rendah, pada karakter umur berbunga dan umur panen memiliki nilai heritabilitas sedang.   &nbsp

The Analysis of Sustainable Construction Strategies on the Likupang Special Economic Zone (SEZ)

Many challenges are faced in implementing sustainable construction in Indonesia. This research aims to find an effective method for adopting sustainable construction. The method used combines qualitative and quantitative methods by incorporating the identification of significant factors affecting the adoption of sustainable construction. In data collection with the SWOT system, FGDs and interviews provided accurate information regarding factors and strategies to promote sustainable construction, particularly in the Likupang SEZ Project. From the results of the study, the IFSC value for the promotion strategy of sustainable construction in the Likupang SEZ project is the social factor of 0.2, followed by the economic factor of 0.3, the environmental factor of 1.2, and the government support factor, business investment, and cultural factors of 1.4, respectively. The highest IFSC value was obtained for the human resource factor of 1.6. Thus, it can be concluded that human resources must be accompanied by government support along with business investment and cultural influences in order to realize adequate sustainable development projections for the Likupang SEZ project in the future. Doi: 10.28991/CEJ-SP2023-09-07 Full Text: PD

Pengaruh 1-methylcyclopropene (1-mcp), Kitosan, dan Suhu Simpan terhadap Masa Simpan dan Mutu Jambu Biji (Psidium Guajava L.) ‘Crystal\u27

Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi tunggal 1-MCP, kitosan, dan suhu dingin, interaksi antara 1-MCP dan kitosan, 1-MCP dan suhu dingin, dan kitosan dan suhu dingin, serta interaksi antara 1-MCP, kitosan, dan suhu dingin dalam memperpanjang masa simpan dan mempertahankan mutu buah jambu biji ‘Crystal\u27. Penelitian disusun dalam Rancangan Teracak Sempurna (RTS) secara faktorial 2 x 2 x 2 dengan tiga ulangan. Faktor pertama adalah 1-MCP (dengan 1-MCP dan tanpa 1-MCP), faktor kedua adalah kitosan (tanpa dan dengan kitosan 2,5%) dan faktor ketiga adalah suhu simpan (suhu dingin 20,8 ºC dan suhu kamar 25,2 ºC). Pengamatan dilakukan terhadap peubah masa simpan, kekerasan, susut bobot, ºBrix, asam bebas, dan tingkat kemanisan buah. Hasil penelitian menunjukkan bahwa aplikasi 1-MCP, kitosan, dan penyimpanan pada suhu dingin 20,8 ºC tidak nyata meningkatkan masa simpan, kekerasan, dan susut bobot, tetapi mampu mempertahankan ºBrix, asam bebas, dan tingkat kemanisan buah jambu biji ‘Crystal\u27. Tidak terdapat pengaruh interaksi antara 1-MCP dengan kitosan, 1-MCP dengan suhu dingin, dan kitosan dengan suhu dingin terhadap masa simpan, kekerasan, susut bobot, ºBrix, asam bebas, dan tingkat kemanisan buah jambu biji ‘Crystal\u27. Tidak terdapat pengaruh interaksi antara 1-MCP, kitosan, dan suhu dingin terhadap masa simpan, kekerasan, susut bobot, ºBrix, asam bebas, dan tingkat kemanisan buah jambu biji ‘Crystal\u27