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Empirical Analysis of the Impact of Labor Coefficients on Column Reinforcement Productivity in Construction Projects
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 4
(2025)
Construction productivity, particularly in column reinforcement, is significantly influenced by labor as a key project component. Variations in labor coefficients determine efficiency in time, cost, and work quality, necessitating empirical analysis of their impact on productivity. This study examines the relationship between labor coefficients and column reinforcement productivity to improve construction project management efficiency. Using a quantitative approach with purposive sampling, 33 ob...
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Adaptation and Validation of the Indonesian Version of R.I.G.H.T. Leadership Scale
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 4
(2025)
Leadership has a significant impact on organizational resilience and employee well-being. In accordance with International Test Commission guidelines, this study translated and validated the R.I.G.H.T. Leadership Scale for Indonesian employees. Online information was gathered from 302 workers from various industries (162 men and 140 women, ages 19–41). Psychometric testing, expert review, and forward-backward translation were all part of the adaptation. With over 90% expert agreement, the conten...
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The Effect of Working Hours of The Ship's Main Engine on The Temperature of The Fresh Water Cylinder Cooling System In Diesel Engines
Majalah Ilmiah Momentum
Vol 21
, No 2
(2025)
Main propulsion engines on commercial ships are generally of the diesel type, necessitating precise and stable thermal conditions for efficient operation. To ensure this thermal stability, the engine's cylinders are equipped with a dedicated freshwater cooling system. The primary objective of this study was to ascertain the correlation between fluctuating operating hours and temperature variations within the engine's cylinder cooling system. The resulting data will inform the establishment of a...
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SINTESIS MEMBRAN AKRILONITRIL BUTADIENA STIRENA TERMODIFIKASI FILLER SULFONASI GRAFENA OKSIDA TEREDUKSI DAN CERIUM OKSIDA
Iskandar, Riska Listiarini
; Dampang, Sarah
; Hakim, Muhammad Fahmi
; Perdani, Meka Saima
; Siswantito, Firgi
; Widianto, Eri
; Fauji, Najmudin
Jurnal Inovasi Teknik Kimia
Vol 10
, No 4
(2025)
The utilization of Acrylonitrile Butadiene Styrene (ABS) polymer as an alternative membrane for Direct Methanol Fuel Cell (DMFC) applications has been investigated. This study aims to evaluate the effect of sulfonation temperature on the performance of ABS membranes modified with reduced graphene oxide/cerium oxide (s-rGO/CeO₂). The membranes were synthesized via sulfonation at 65 °C, 75 °C, and 85 °C, with a filler composition of 3% v/v. The results indicate that the addition of filler signific...
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SYNERGISTIC INTERFACIAL CHEMISTRY OF HUMIC ACID AND ACTIVATED FLY ASH FOR HIGH-PERFORMANCE Mn²⁺ ADSORPTION
Susparini, Ninik Triayu
; Ramadhan, Alamsyah Sultan
; Aferta, Lusi
; Benu, Marlon Jusak Renaldy
; Wijayanti, Sri
; Tantowi, Ali
Jurnal Inovasi Teknik Kimia
Vol 11
, No 1
(2025)
This study developed a hybrid adsorbent derived from activated fly ash (FA) and humic acid (HA) for effective Mn²⁺ removal from aqueous solutions. Fly ash was activated using 1 M NaOH to increase its surface hydroxyl groups (≡Si–OH and ≡Al–OH) and enhance reactivity. The activated FA was then composited with HA, which contains abundant –COOH and –OH groups, forming an inorganic–organic hybrid with improved adsorption capability. The HA–FA composite with a 1:3 mass ratio exhibited the highest Mn²...
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Development of E-Worksheets Discovery Learning Model Assisted by Augmented Reality for Renewable Energy Topic
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 4
(2025)
The poor motivation and interest of students in learning physics which is frequently viewed as challenging and less interesting led to the conduct of this study. As a result, creating cutting-edge educational materials that may facilitate interactive learning and foster a deeper conceptual grasp is essential. Building an Electronic Student Worksheet on the subject of renewable energy using the Discovery Learning methodology enhanced by Augmented Reality is the aim of this study. The research and...
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Problem Based Learning Effect Using the TaRL Approach on Problem-Solving Skills in Global Warming Topic
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 4
(2025)
Physics learning is often considered difficult because students are unable to relate concepts to real-world problems they encounter. This condition results in low problem-solving skills among students, especially on contextual topics such as global warming. This study aims to determine the effect of the Problem Based Learning (PBL) model with the Teaching at the Right Level (TaRL) approach on students' problem-solving skills in global warming material. The research method used was quantitative w...
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Analisis Penerapan Social Media Marketing di Lafera Space Pekanbaru
EBISNIS : JURNAL ILMIAH EKONOMI DAN BISNIS
Vol 18
, No 2
(2025)
Lafera Space is a coffee shop located in Bangau Sakti, Pekanbaru. This study aims to obtain clear information and insights into the implementation of social media marketing strategies at Lafera Space Pekanbaru. The research approach used is a descriptive qualitative method that describes how Lafera Space conducts social media marketing. Data collection was conducted through interviews with seven informants, documentation study, literature review, and data source triangulation. The research findi...
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Literacy Assistance and Teaching of Short Surah of the Qur'an for Migrant Children at PKBM PNF Malaysia
wijayanti, berly
; Afidah, Layyinatul
; Saifuddin Azzudy, Muhammad
; Amanda Dewi, Reni
; Dian Pramuja, Alvin
; A'yun, Qurroti
; Idris, Haidar
; Ishari, Nurhafid
; Darwis, Mohammad
; Nadiyatul Firdausi, Putri
; Zahroh, Aminatuz
; Farid, Ahmad
Indonesian Journal of Empowerment and Community Service
Vol 6
, No 2
(2025)
ABSTRAK
Rendahnya literasi dasar dan kemampuan keagamaan anak-anak migran yang belum mendapatkan akses pendidikan formal maupun agama secara memadai, menjadi poin yang sangat utama terutama dalam sektor pendidikan. Kurangnya pemahaman agama, menjadikan anak-anak migran tidak dapat membaca bahkan menghafalkan surah pendek yang ada di Al-Qur’an. Penelitian ini bertujuan untuk mendeskripsikan proses pendampingan baca tulis dan pengajaran surah pendek Al-Qur’an kepada anak-anak migran PKBM PNF...
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Peer Health Educator for Escalating Adolescent Health Education Based On Mobile Health
Indonesian Journal of Empowerment and Community Service
Vol 6
, No 2
(2025)
Adolescents are vulnerable to physical and mental health problems. Lack of health information makes adolescents influenced by misinformation, which can trigger detrimental things. Main issues of this topic are lack of information about adolescent nutrition and mental health, unbalanced food consumption patterns, negative stigma related to adolescent mental health, and lack of use of mobile health. These problems caused by limited access to health information and absence of health educators in sc...
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