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ISSN 2828-6863 (Online)
KOLONI (SINTA 4)
SK AKREDITASI NO 147 Download DISINI
KOLONI adalah jurnal multidisiplin ilmu terakreditasi SINTA 4 yang diterbitkan oleh Universitas Pahlawan Tuanku Tambusai. Jurnal KOLONI terbit setiap tiga bulan dan merupakan jurnal peer-review, open access, serta bersifat ilmiah yang menerbitkan berbagai jenis artikel seperti artikel penelitian, artikel review, laporan kasus, studi kasus, resensi buku, tesis, disertasi, dan karya ilmiah lainnya.
Ruang lingkup (scope) jurnal KOLONI mencakup berbagai bidang keilmuan multidisiplin, antara lain:
- Ilmu Kesehatan dan Kesehatan Masyarakat
- Keperawatan dan Kebidanan
- Farmasi dan Ilmu Kedokteran
- Pendidikan dan Ilmu Keguruan
- Ilmu Sosial dan Humaniora
- Ekonomi, Manajemen, dan Bisnis
- Hukum dan Ilmu Politik
- Teknik dan Rekayasa
- Ilmu Komputer dan Teknologi Informasi
- Pertanian, Peternakan, dan Perikanan
- Lingkungan dan Kesehatan Lingkungan
- Psikologi
- Administrasi Publik dan Kebijakan
- Komunikasi dan Media
- Bidang ilmu lain yang relevan dengan pengembangan ilmu pengetahuan dan teknologi
Dengan ruang lingkup yang luas, jurnal KOLONI menjadi wadah publikasi ilmiah bagi peneliti, akademisi, dan praktisi dari berbagai disiplin ilmu.
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Indonesia (106)
IN PRESS
Articles
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Analisis Strategi Supply Chain Management Pengadaan Material Menggunakan Pendekatan Swot Kuantitatif Pada Ukm Manufaktur Blower
Muhammad Adi Nur Aziz, Abdul WahidShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1185 | Check in Google Scholar
This study aims to evaluate and formulate Supply Chain Management (SCM) strategies to minimize supply chain disruptions and improve blower product quality at CV. Suwan Fan. The main problems faced are an average product defect rate of 8.6% and 10 material delivery delays resulting in 10 days of production downtime. The method used is quantitative descriptive with a SWOT analysis approach. Primary data were obtained through structured questionnaires distributed to 5 internal respondents using purposive sampling techniques, while secondary data were historical production records. Data analysis was conducted by calculating the IFAS, EFAS Matrices, SWOT Cartesian Diagram, and TOWS Matrix. The results showed a total IFAS Matrix score of 3.01 and EFAS of 2.84. The Cartesian Diagram coordinate points are at position (0.161; 0.010), placing the company in Quadrant I (Growth Strategy). The main recommended strategy is the Strength-Opportunity (SO) strategy, focusing on strengthening cooperation with strategic suppliers and utilizing procurement technology. As a conclusion and managerial implication, this research formulated four Standard Operating Procedures (SOPs) covering material procurement, receiving inspection, storage, and release, along with a proposed one-way production layout to sustainably minimize defects and waiting times.4851-4857 -
Implementasi Building Information Modeling (BIM) 4D untuk Quantity Take-Off dan Visualisasi Penjadwalan pada Proyek Gedung Rumah Sakit Advent Manado
Matthew Restho Pakiding, Sherley Runtunuwu, Dwars SoukottaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1452 | Check in Google Scholar
Building Information Modeling (BIM) 4D is an extension of BIM that integrates three-dimensional models with the time dimension to improve construction planning and Schedule visualization. This study aims to implement BIM 4D for the structural works of the Adventist Hospital Building Project in Manado through 3D modeling, Quantity Take-Off, scheduling, and construction simulation. A case study approach was employed using structural drawings, the Work Breakdown Structure (WBS), and the project Schedule as the primary data sources. The structural model was developed in Autodesk Revit 2025, the project Schedule was prepared in Microsoft Project, and the integration of geometry and time was performed in Autodesk Navisworks Manage using the TimeLiner feature. The results demonstrate that the BIM 3D model successfully represents all structural elements while automatically generating consistent quantity data. Furthermore, the integration of the model with the project Schedule produces a BIM 4D simulation that effectively visualizes the construction sequence according to planned activities, improving the understanding of task relationships and project progress. Therefore, the implementation of BIM 4D provides a more effective approach for planning, coordinating, and evaluating structural construction Schedules than conventional scheduling methods.4858-4868 -
Hubungan Antara Pengelolaan Sampah Rumah Tangga Dengan Kejadian Demam Berdarah Dengue (DBD) Di Desa Wineru Kecamatan Likupang Timur Minahasa Utara
Marvinsi Karlina Pricilia Makitulung, Odie R. Pinontoan, Paul A. T. KawatuShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1474 | Check in Google Scholar
This study aims to determine the relationship between household waste management and the incidence of Dengue Hemorrhagic Fever (DHF) in Wineru Village, East Likupang Subdistrict. This study employed a quantitative method with a cross-sectional design involving 80 respondents selected through a purposive sampling technique. Data were collected using a questionnaire regarding household waste management and the history of DHF incidence, which were then analyzed using univariate and bivariate analyses with Fisher’s Exact Test at a 95% confidence level (α = 0.05). The results showed that the majority of respondents had good household waste management (62.5%), while 37.5% had poor waste management. The bivariate analysis indicated a significant relationship between household waste management and DHF incidence (p = 0.005), with a Prevalence Ratio (PR) of 6.667 (95% CI: 1.515–29.342). This means that respondents with poor waste management are 6.667 times more likely to experience DHF, either themselves or among family members living in the same household, compared to those with good household waste management. In conclusion, household waste management is associated with DHF incidence in Wineru Village; therefore, community education and empowerment are required to improve waste management as a DHF prevention effort.
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Analisis Percepatan Waktu Pelaksanaan Pembangunan Gedung Kepolisian Daerah Sulawesi Utara Melalui Penerapan Metode Fast Track
Adriano Hasan, Franky Riccardo Tombokan, Wellem ToadShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1484 | Check in Google Scholar
Timely completion of a construction project is one indicator of project success, whereas delays tend to increase execution costs and postpone the utilization of the building. This study aims to analyze the execution duration and critical path of the existing condition of the construction project of the North Sulawesi Regional Police building, and to calculate the magnitude of time acceleration and the percentage of duration efficiency achievable through the application of the fast track method. The study used a descriptive quantitative approach with secondary data consisting of the master schedule/S-curve, weekly and monthly reports, network diagram/precedence diagram method (PDM), and the project budget plan. The analysis was carried out in stages, including identification of activities and durations, preparation of the network diagram and determination of the critical path using Microsoft Project software, analysis of the potential for activity overlapping on the critical path, and rescheduling of the project. The results show that the project execution duration under field conditions was 160 working days. After the fast track method was applied to several critical path activities by changing the predecessor relationship from finish-to-start to start-to-start, the project duration could be shortened to 137 working days, an acceleration of 23 working days (14.4%). This study concludes that the fast track method is effective as a strategy for accelerating the execution time of multi-story building construction projects without a significant increase in resources, provided it is accompanied by adequate coordination and quality control.4877-4883 -
Hubungan Antara Aktivitas Fisik Dengan Status Gizi Di SMP Negeri 1 Amurang Timur
Ave Rosari Masu, Nancy Swanida. H. Malonda, Ester C. MusaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1489 | Check in Google Scholar
Adolescent nutritional status is influenced by various factors, such as diet, lifestyle, physical activity, and the adequacy of nutrient intake. An imbalance between energy intake and energy expenditure can increase the risk of being overweight or obese. This study aimed to analyze the relationship between physical activity and the nutritional status of students at SMP Negeri 1 Amurang Timur. It employed a quantitative research design—specifically an analytic observational study with a cross-sectional approach. The sample consisted of 130 respondents from grades VII, VIII, and IX, selected using a total sampling technique. Data were collected using the International Physical Activity Questionnaire (IPAQ) and anthropometric measurements (body weight and height). Data analysis involved univariate and bivariate methods, utilizing the Chi-Square statistical test. The results showed that the majority of respondents engaged in active physical activity (107 respondents or 82.3%) and possessed good nutritional status (87 respondents or 66.9%). The bivariate Chi-Square test yielded a p-value of 0.001 (p<0.05), indicating a significant relationship between physical activity and nutritional status. It is concluded that there is a significant association between physical activity and nutritional status among students at SMP Negeri 1 Amurang Timur. There is a need to maintain regular physical activity and enhance education regarding balanced nutrition within the school environment.4884-4893 -
Hubungan Antara Praktik Pemberian Makan dengan Status Gizi Balita di Wilayah Pesisir
Tiara Maharani Randabunga, Yulianty Sanggelorang, Fima L.F.G LangiShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1490 | Check in Google Scholar
Toddlers are a population group undergoing rapid growth and development, making optimal nutritional intake essential. Nutritional problems among toddlers remain a public health challenge, including in Southeast Minahasa Regency, where the prevalence of stunting was 21.9% and wasting was 8.1% based on the 2024 Indonesian Nutritional Status Survey (SSGI). Food intake and feeding practices are important factors influencing the nutritional status of toddlers, as inappropriate feeding practices that do not meet children's nutritional needs may increase the risk of both undernutrition and overnutrition. This quantitative study employed an analytic observational design with a cross-sectional approach. The study was conducted in three coastal villages of Belang District involving 55 children aged 6–59 months selected using a total sampling technique. Feeding practices were assessed using the Child Feeding Questionnaire (CFQ), while nutritional status was determined using Weight-for-Age (WAZ) and Weight-for-Length/Height (WHZ) indices according to WHO standards. Data were analyzed using univariate and bivariate analyses. Bivariate analysis was performed using the Pearson correlation test after confirming data normality through a normality test. Most mothers applied appropriate feeding practices (83.6%). The prevalence of underweight (WAZ) was 21.8% (7.3% severely underweight; 14.5% underweight) and wasting (WHZ) was 16.4% (5.5% severely wasted; 10.9% wasted). Pearson correlation test showed a significant positive relationship with moderate strength between feeding practices and WAZ nutritional status (r = 0.396; p = 0.003). Likewise, there was a significant positive relationship with weak strength between feeding practices and WHZ nutritional status (r = 0.294; p = 0.029). There is a significant relationship between feeding practices and toddler nutritional status based on both WAZ and WHZ indices in the coastal area of Belang District.
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Strategi Komunikasi Pemasaran BYD Indonesia Sebagai "Indonesia EV Sales No. 1" Pada GIIAS 2025
Melvina Hensan, Anita RosanaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1487 | Check in Google Scholar
The increasingly fierce competition in electric vehicles in Indonesia requires manufacturers to implement effective marketing communication strategies to introduce products and strengthen brand position. This study aims to identify and analyze BYD Indonesia’s marketing communication strategy as “Indonesia EV Sales No. 1” at the Gaikindo Indonesia International Auto Show (GIIAS) 2025. This study uses a descriptive qualitative approach with a case study design and a constructivist paradigm. Primary data were collected through semi-structured interviews with three purposively selected informants, namely the Head of Marketing of BYD Harmony Auto, the GIIAS 2025 organizing committee, and consumers who purchased BYD at the exhibition, while secondary data were obtained from books, journal articles, and media publications. The analysis follows the stages of data reduction, data display, and conclusion drawing, with source triangulation to test data trustworthiness. The analytical framework uses eight elements of Integrated Marketing Communication (IMC), namely advertising, public relations, direct marketing, personal selling, sales promotion, word of mouth, events and experiences, and interactive marketing. The results show that BYD combined digital campaigns and offline promotions, media cooperation, follow-up via WhatsApp and telephone, the role of salespeople as the brand’s front line, ownership promotion packages, user recommendations, test drives and immersive booth design, and TikTok live streaming. The integration of these elements conveyed consistent messages and supported awareness and purchase intention, although market education about electric vehicles remained a challenge. These findings enrich the study of event-based marketing communication and provide practical references for electric vehicle manufacturers.4902-4915 -
Hubungan Antara Praktik Pemberian Makan Dengan Status Gizi Balita Di Wilayah Pesisir
Anggriany Cynthia Rezqillah RumagitShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1498 | Check in Google Scholar
Nutritional problems among toddlers remain a public health challenge. One factor influencing toddlers' nutritional status is the feeding practices of parents or caregivers. Appropriate feeding practices help meet toddlers' nutritional requirements according to their age, whereas inappropriate practices may increase the risk of nutritional problems. This study aimed to analyze the relationship between feeding practices and the nutritional status of toddlers in the coastal area of Bolaang Timur Subdistrict. This quantitative study employed a cross-sectional study design. The study included 53 toddlers aged 24–59 months who were selected using a total sampling technique based on the inclusion and exclusion criteria. Feeding practices were assessed using the Child Feeding Questionnaire (CFQ), while nutritional status was determined through anthropometric measurements based on the weight-for-age (WFA) and weight-for-height (WFH) indices according to the Child Anthropometry Standards. Data were analyzed using univariate and bivariate analyses with the Chi-square test (Continuity Correction) at a significance level of α=0.05. Most respondents (60.4%) had inappropriate feeding practices. Statistical analysis showed no significant association between feeding practices and nutritional status based on either the WFA index (p=0.429) or the WFH index (p=0.084). Feeding practices were not significantly associated with toddlers' nutritional status. Nevertheless, parents or caregivers should continue to implement age-appropriate feeding practices that meet toddlers' nutritional needs to support optimal growth and development.4916-4923 -
Hubungan Antara Variabilitas Iklim Dengan Kejadian Demam Berdarah Dengue Di Sulawesi Utara Tahun 2020-2024
Injiliny Virginia Polii, Fima L. F. G. Langi, Budi T. RatagShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1502 | Check in Google Scholar
Climate variability influences the growth, activity, and transmission capacity of Aedes aegypti mosquitoes in spreading the dengue virus through changes in temperature, rainfall, and humidity, which directly affect disease dynamics within communities. This study aimed to analyze the relationship between climate variability and the incidence of Dengue Hemorrhagic Fever (DHF) in North Sulawesi during 2020–2024, in order to understand the epidemiological patterns influenced by tropical climatic factors. This research employed an analytical time series design using the Generalized Linear Model (GLM), ARIMA, and Monte Carlo Simulation, conducted between September and October 2025. The GLM analysis was used to identify linear relationships among variables, ARIMA to model trends and seasonal patterns of DHF cases, and Monte Carlo simulation to estimate uncertainty in the results. The findings revealed a significant relationship between climatic factors and DHF incidence, with rainfall identified as the most dominant variable compared to temperature and humidity. High rainfall generates water collections that serve as breeding sites for mosquitoes, while temperature and humidity enhance vector survival and biting activity. These findings highlight that changes in climate patterns, particularly increased rainfall, can serve as an early indicator in dengue surveillance and prevention systems. Thus, climate variability has been proven to influence the incidence of DHF in North Sulawesi during the 2020–2024 period
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Analisis Implementasi Prinsip Green Construction Pada Proyek Lanjutan Studi Kasus Hotel MMTAnalisis Implementasi Prinsip Green Construction Pada Proyek Lanjutan Studi Kasus Hotel MMT
Vardell Fredrick Bororing, Beldie Aryona Tombeg, Hendrie Joudi Palar, Stefani Switly PeginusaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1503 | Check in Google Scholar
Construction activities significantly contribute to natural resource consumption and waste generation, making the implementation of green construction principles increasingly important, particularly in continued projects that were previously halted. This study aims to identify the aspects of construction implementation that have and have not met green construction indicators, and to analyze the level of implementation in the aspects of structure, material, and construction waste management at the Metland Marron Hotel Construction Project in Tomohon, which was halted in 2020 and resumed in 2025. The study employed a quantitative descriptive method with an evaluative approach based on an assessment model consisting of 15 indicators on a 0–2 scoring scale, with data collected through field observation, project documentation, and questionnaires administered to five respondents in managerial and supervisory positions. The results show that the overall level of green construction implementation reached 79.3 percent, categorized as good. The structural aspect achieved the highest score (90.0%) through the reuse of existing structures without demolition, followed by construction waste management (82.0%), while the material aspect obtained the lowest score (66.0%) due to limited use of environmentally friendly fabricated materials and local suppliers. This study concludes that continued construction projects have greater opportunities to implement green construction principles compared to new projects because they can utilize existing structures, although sustainable material management still requires further attention from project implementers.4935-4941 -
Analisis Framing Pemberitaan Tribun Timur Dalam Kontestasi Pemilihan Ketua RT Dan RW Di Kota Makassar
Muhammad Nur Alqadri Sirajuddin, Arianto Arianto, Hasrullah HasrullahShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1507 | Check in Google Scholar
This study aims to analyze the framing of Tribun Timur's reporting on the contestation of RT and RW elections in Makassar using Robert M. Entman's framing model and to describe the social construction of reality presented through the reporting. This study employed a qualitative approach with a descriptive research design. The research object consisted of Tribun Timur news texts, with five news articles purposively selected based on thematic relevance, reporting period, and research focus. Data were collected through documentation and literature review, then analyzed using Entman's four framing devices: define problems, diagnose causes, make moral judgment, and treatment recommendation. The findings show that Tribun Timur framed the RT and RW election contestation by emphasizing regulations, election mechanisms, candidacy, campaigns, competition among candidates, public participation, and security. The social construction of reality was formed through the processes of externalization, objectivation, and internalization, presenting the RT and RW elections as a form of local democracy conducted through procedural mechanisms while involving social dynamics. This study concludes that Tribun Timur's framing does not merely present factual information about the elections but also constructs a framework for understanding leadership contestation at the neighborhood level.4942-4957 -
Evaluasi Penerapan Konsep Green Building Berdasarkan Standar Greenship Versi 1.2 Pada Gedung Rumah Sakit Advent Manado
Marshello Inberla Garet Wagania, Beldie Aryona Tombeg, Rilya RumbayanShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1517 | Check in Google Scholar
Worldwide, hospitals and other health-care facilities are among the largest institutional consumers of energy and generators of carbon emissions, which explains the growing push for these buildings to operate more sustainably. This paper examines how well the emerging Advent Hospital Manado design measures up against the green-building benchmarks contained in GREENSHIP New Building Version 1.2. As the building is still early in construction, only the Design Recognition (DR) stage was assessed, capping the achievable score at 77 points. Evidence was drawn from a review of planning documents—the Detailed Engineering Design (DED), the Bill of Quantities (BOQ), and the not-yet-finalized technical specifications (RKS)—together with on-site inspection used to corroborate the paperwork. Scoring placed the design at 27 out of 77 points (35.06 percent), a result that clears the threshold for an indicative Bronze rating. Sensitivity testing indicates the score has room to climb toward a Gold rating of 48 points, provided the mechanical team runs thermal simulations, the basement sump is converted into a dual-plumbing setup for recycled water, and formal environmental-management procedures are put in place. Taken together, these results show that the preliminary design already satisfies core sustainability principles, though confirming its real-world operational performance will have to wait until the building is finished and in use.4958-4964 -
Analisis Biaya Dan Waktu Proyek Pembangunan Rusunawa Tanah Cokelat Menggunakan Metode Earned Value
Eden Bembanaho, Geertje Efraty Kandiyoh, Novatus SendukShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1518 | Check in Google Scholar
The current rapid pace of development will continue to accelerate due to the growing demand for buildings—such as residential homes, hospitals, offices, commercial buildings, schools, and many others—in today’s society. Consequently, as the construction sector continues to expand, effective time and cost management are essential for ongoing projects. A project is considered successful if it is completed on time and meets the planned quality standards. Time and cost management can be achieved using the Earned Value method, which measures how closely the project is progressing according to plan. In the implementation of the Paniki Apartment Building construction project, the schedule did not align with the planned timeline because from week 1 through week 21, there were delays relative to the planned schedule. This is indicated by a negative Schedule Variance (SV) value of -Rp 538,627,008.57, or a Schedule Performance Index (SPI) of 0.94 < 1. Meanwhile, the project’s schedule performance in weeks 22 and 25 was ahead of the planned schedule, as indicated by a positive Schedule Variance (SV) of Rp. 246,477,755.02 or a Schedule Performance Index (SPI) of 1,02 > 1,2.4965-4976 -
Analisis Tingkat Iluminansi Penerangan Jalan Umum pada Trestle Dermaga KITB Batang Berdasarkan Simulasi DIALux evo dan Pengukuran Lapangan
Taufik Hidajat Rasjid, Ridho Bayuaji, Endah Setyaningsih, Oei Fuk JinShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1510 | Check in Google Scholar
Public Street Lighting (PSL) plays a vital role in ensuring safety and supporting the continuity of nighttime transportation operations, particularly in port areas. This study aims to analyze the illuminance level of the public street lighting system on the KITB Batang Port Trestle by comparing the results of DIALux evo simulations with field measurements conducted using a digital lux meter. A descriptive quantitative method with a comparative approach was employed based on 44 observation points. The simulation results indicated an average illuminance (Eavg) of 35 lux, a minimum illuminance (Emin) of 17 lux, a maximum illuminance (Emax) of 69 lux, and a lighting uniformity (Uo) of 0.471. Meanwhile, field measurements showed an average illuminance of 44.07 lux, ranging from 30 to 100 lux. The comparison between the simulation and field measurement results demonstrated a satisfactory level of agreement, although differences were observed due to lamp lumen depreciation, installation conditions, road surface reflectance, and environmental factors. The findings indicate that integrating DIALux evo simulation with field measurements is an effective approach for evaluating the performance of public street lighting systems and can serve as a reliable basis for design optimization, maintenance planning, and improving operational safety in port infrastructure.4977-4984 -
Representasi Nilai Persatuan Berdasarkan Sila Ketiga Pancasila Dalam Tradisi Sekaten Di Keraton Kasunanan Surakarta Hadiningrat
Wisnu Aditya Candrakristawan, Widya Noventari, Yudi ArianaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1520 | Check in Google Scholar
The study aims to (1) analyze the representation of the value of unity based on the third principle of Pancasila in the procession of the Sekaten tradition and (2) identify its supporting and inhibiting factors. This study employed a qualitative method with a descriptive approach and was conducted at the Kasunanan Surakarta Hadiningrat Palace. Data were collected through observation, interviews, and documentation involving eleven informants comprising palace relatives (sentono dalem), palace servants (abdi dalem), religious leaders, government representatives, traders, and visitors. Data were analyzed using an interactive model consisting of data reduction, data presentation, and conclusion drawing. The findings indicate that, first, the value of unity in the Sekaten tradition is represented through cultural symbols, rituals, and social interactions involving various segments of society regardless of their backgrounds. This value is reflected in togetherness, tolerance, mutual cooperation, and collective participation throughout the various stages of the procession. Second, the supporting factors for the representation of the value of unity include the active role of the Palace, government support, and community participation. Meanwhile, the inhibiting factors include the influence of globalization, limited understanding of cultural values among the younger generation, and the dominance of entertainment aspects in the implementation of Sekaten. The study concludes that the Sekaten tradition functions not only as a cultural ritual but also as a means of internalizing the value of unity in accordance with the third principle of Pancasila, as well as a source of culturally based learning for Pancasila and Civic Education.4985-5004 -
Efektivitas Metode Fast Track Dalam Mempercepat Pelaksanaan Proyek Perkantoran Kairagi Mas Manado
Suiti Balandatu, Deyke Junita Femelia Mandang, Sudenroy MentangShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1523 | Check in Google Scholar
Delays in construction project implementation can affect project success, so effective time acceleration efforts are needed. This study aims to analyze the acceleration of construction time on the Kairagi Mas Office Building Construction Project in Manado using the Fast Track method. The research used a quantitative approach with secondary data consisting of the time schedule, S-curve, and bill of quantities (RAB). The critical path was determined using the Critical Path Method (CPM) with the assistance of Microsoft Project, and activities on the critical path were then rearranged to overlap, with a maximum acceleration limit of 50% of the predecessor activity's duration. The analysis showed that the critical path consists of the foundation work through the LMR structure work, with a duration of 540 days. Of the nine pairs of activities analyzed, six pairs could be fully accelerated, while three pairs had already reached the maximum acceleration limit. After applying Fast Track, the critical path duration was reduced to 285 days, a reduction of 255 days (47.2%), and the overall duration of the structural work decreased from 432 days to 285 days (147 days or 34.0%). It can be concluded that the Fast Track method is effective in accelerating construction project implementation without adding labor or materials.5005-5013 -
Pengalaman Wisatawan Mancanegara Terhadap Fenomena Bali Belly Selama Berwisata Di Bali Koloni: Jurnal Multidisiplin Ilmu
Rifky Farezky Kamal Miftah, Dewa Ayu Evania Putri, Tsaabita Latifa Dewi, Siva Fitriana Cagiva, David Hizkia TobingShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1501 | Check in Google Scholar
Bali has long been recognized as one of the world’s most renowned tourist destinations, offering a unique combination of natural beauty, rich culture, and engaging tourism experiences. However, emerging challenges related to tourists’ health have also become a concern during visits to Bali, one of which is a phenomenon commonly referred to as “Bali Belly.” Based on this phenomenon, the present study aims to explore the dynamics of international tourists’ experiences related to Bali Belly during their visit to Bali. This study employed a qualitative research method, with interviews used as the primary data collection technique, conducted in several areas in Bali, including Badung and Denpasar. The collected data were analyzed using thematic analysis, resulting in the identification of four major themes: tourists’ perceptions of Bali Belly, symptoms experienced due to Bali Belly, factors influencing the occurrence of Bali Belly, and responses and emotional reactions after experiencing Bali Belly. The findings indicate that most tourists do not perceive Bali Belly as a serious health threat, but rather as a common digestive disturbance that may occur in various countries. Factors such as food hygiene, types of food consumed, environmental conditions, as well as differences in climate and bodily adaptation were found to influence tourists’ experiences of Bali Belly. In conclusion, Bali Belly is generally regarded as a normal part of the travel experience that does not diminish Bali’s positive image as a tourist destination.5014-5026 -
Hubungan Pengetahuan Dan Sikap Remaja Siswa SMAN 5 Banda Aceh Terhadap Pencegahan HIV/AIDS Pada Tahun 2026
Elmiyati Elmiyati, Maimun Maimun, Yuni RahmayantiShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1525 | Check in Google Scholar
HIV/AIDS remains a serious global public health problem, with adolescents being a high-risk group due to high social mobility and limited knowledge. In Aceh, particularly in Banda Aceh, HIV/AIDS showed a highly significant increase. This study aimed to determine the relationship between the level of knowledge and attitude of adolescents toward HIV/AIDS prevention among students at SMA Negeri 5 Banda Aceh. This study used a correlational analytic design with a cross-sectional approach. The population consisted of all grade X and XI students at SMA Negeri 5 Banda Aceh, totaling 70 students, with a total sampling technique used to select 70 respondents who met the inclusion and exclusion criteria. Data were collected using a structured questionnaire and analyzed using univariate and bivariate (Chi-Square) analysis. The results showed that of the 70 respondents, 61 (87,1%) had good knowledge, and the majority of them (84,2%) demonstrated a good attitude toward HIV/AIDS prevention. The Chi-Square test result showed a p-value of 0.000 (p < 0.05), indicating a statistically significant relationship between knowledge and attitude, with an odds ratio of 103.250 (95% CI: 12.508–852.287). It can be concluded that there is a significant relationship between knowledge and attitude of adolescents toward HIV/AIDS prevention at SMA Negeri 5 Banda Aceh, indicating that improving knowledge through education is essential to promote a more positive preventive attitude.
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Preclinical Educational Environment at an Indonesian Medical School: A Cross-Sectional Survey Using an Indonesian Translation of the JHLES
Daniyah Umar Anis, Rahadian Indarto Susilo, Erica Medina Ramadhaningtyas, Hermanto Tri JoewonoShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1529 | Check in Google Scholar
The educational environment is a key determinant of medical education quality, particularly during the preclinical stage. Evidence regarding the use of the Indonesian translation of the Johns Hopkins Learning Environment Scale (JHLES) among preclinical medical students remains limited. This study aimed to assess students' perceptions of the preclinical educational environment using the Indonesian translation of the JHLES and examine its association with the Global Satisfaction Score (GSS), and to explore differences by gender and cohort. A cross-sectional study was conducted among 210 preclinical medical students from the 2023 and 2024 cohorts at Universitas Airlangga. Data were collected using the 28-item Indonesian translation of the JHLES and analyzed using descriptive statistics, Spearman's rho correlation, and Mann–Whitney U test. The mean total JHLES score was 80.70 ± 11.48 (72.05% of the maximum possible score), above the scale midpoint. Community of Peers had the highest mean domain score (78.61%), whereas Inclusion and Safety had the lowest (55.59%). Total JHLES scores were significantly correlated with the GSS (ρ = 0.379, p < 0.001). No significant gender differences were observed in total JHLES score, domain score, or GSS. Students in the 2023 cohort reported significantly higher Mentoring scores than those in the 2024 cohort (median: 2023 = 6.00, 2024 = 5.00; U = 3133.5, p < 0.001). Preclinical medical students' perceptions of the educational environment varied across JHLES domains, with reliability also varying across subscales. Subgroup comparisons were exploratory. These findings are preliminary pending further psychometric validation.
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Tindak Tutur Ilokusi Pada Penutur Melayu Dalam Akun Tiktok Official SMA Irshadiah Malaysia
Dina Handayani Safila Putri, Wagiran WagiranShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1530 | Check in Google Scholar
The development of social media platforms such as TikTok has transformed communication dynamics within educational environments, including Malay-speaking communities. This study aims to analyze the forms and functions of illocutionary speech acts used by Malay speakers in school digital discourse. A qualitative descriptive method was employed in this research. The data consisted of words, phrases, and sentences containing illocutionary speech acts extracted from 3 selected videos on the Official TikTok account of SMA Irshadiah Malaysia (@smairshadiah). Data were collected through digital observation, recording, and note-taking techniques. Data analysis was conducted through transcription, coding, identification, classification based on Searle’s illocutionary theory, contextual interpretation, and conclusion drawing. The results revealed instances of illocutionary speech acts, comprising assertive, directive, commissive, expressive, and declarative acts. Expressive speech acts were the most dominant, as the school's social media platform primarily functions to convey appreciation and respect, particularly during Teacher's Day celebrations. Assertive and directive acts served to deliver study tips and religious advice, while commissive and declarative acts appeared in students' self-reflections, demonstrating commitments to personal change and recognition of teacher authority. This study offers theoretical contributions to digital pragmatics and provides practical insights for educators in utilizing social media as a polite and communicative educational medium.5054-5072 -
Perhitungan Quantity Takeoff Pada Bangunan Industri Menggunakan Autodesk Revit Dan Glodon Cubicost
Enzo Ezekiel Alden Pojoh, Vicky Alexander Assa, Stefani Switly PeginusaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1528 | Check in Google Scholar
Quantity takeoff (QTO) for industrial buildings is frequently performed using two-dimensional drawings, often amidst frequent design revisions. This study aims to establish an integration workflow from Autodesk Revit models to Glodon Cubicost TAS and TRB via the IFC format, calculate concrete volumes and reinforcement weights for structural works, measure the variance against the project's Bill of Quantities (BoQ), and identify the causes of these discrepancies. The research utilizes a case study of a 9,180 m² industrial building. Structural elements—including pile caps, tie beams, columns, beams, and corbels—were modeled in Revit based on construction drawings, exported to the IFC 2x3 format, and subsequently analyzed using Cubicost TAS for concrete and Cubicost TRB for reinforcement. BIM-based calculations yielded a concrete volume of 1,238.470 m³ and a reinforcement weight of 273,203.9 kg. Both figures exceeded the BoQ values across all items, with total variances of 22.5% for concrete and 42.2% for reinforcement. Concrete variances ranged from 8.9% for beams to 51.4% for pile caps, while reinforcement variances ranged from 23.0% for pile caps to 53.7% for columns. A verification using the net length method on the lower K3 column revealed that TRB calculated a 32,7 % higher weight because it accounted for lap splices, starter bars, anchorage, and hooks. While the integration of Revit and Cubicost is viable for structural work, reinforcement data requires re-inputting in TRB, and non-standard elements—such as corbels—are not yet recognized as parametric elements.5073-5083 -
Gambaran Keluhan Gangguan Pencernaan Pada Pekerja Dan Identifikasi Bakteri Pada Sampel Lalat Di Kantin Pertambangan PT X Minahasa Tenggara
Anita Tulong, Paul Artur Tennov Kawatu, Odi Roni PinontoanShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1532 | Check in Google Scholar
Hygiene and sanitation in the workplace, particularly in canteen areas, are important for controlling biological hazards and protecting workers’ health. The presence of flies in the canteen area is an environmental condition that requires attention. This study aimed to describe digestive disorder complaints among workers and identify bacteria in flies found in the mining canteen of PT X, Southeast Minahasa. This descriptive observational study involved 40 respondents from a population of 220 workers selected using purposive sampling. Digestive disorder complaints were collected using a questionnaire and analyzed using univariate analysis. One housefly (Musca domestica) sample was examined through bacterial culture, isolation, PCR, and 16S rRNA gene sequencing. A total of 36 respondents (90.0%) experienced mild complaints, 2 respondents (5.0%) reported no complaints, and 2 respondents (5.0%) experienced moderate complaints. No severe complaints were found. The most frequently reported complaints were diarrhea (50.0%), excessive flatulence (47.5%), changes in bowel habits (45.0%), and abdominal bloating (42.5%). Laboratory examination identified Providencia vermicola in one housefly sample based on 16S rRNA gene analysis. Most respondents experienced mild digestive disorder complaints, and Providencia vermicola was identified in one housefly sample. The bacterial finding cannot be used to establish the cause of digestive disorder complaints among workers. The findings may provide preliminary information for managing biological hazards through hygiene, sanitation, and vector control in the canteen environment.5084-5094 -
Model Pencegahan Stunting Berbasis Tradisi dan Kearifan Lokal pada 1000 HPK di Kota Tidore Kepulauan
Sinta Muhammad, Raihana Alti Safina Do Ali, Masita Hariyanto, Srifasni SukatmanShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1534 | Check in Google Scholar
Stunting prevention during the first 1,000 days of life requires a comprehensive approach that extends beyond biomedical and nutritional interventions by considering cultural norms, family authority, and local beliefs that influence feeding practices, breastfeeding, postpartum care, and child-rearing. This study aimed to explore local traditions and cultural wisdom related to maternal and child health, identify cultural practices that support or hinder stunting prevention, and develop an integrated culture-based intervention model in Tidore Islands City. A descriptive qualitative study with a participatory approach was conducted. Twenty-five informants were purposively selected from seven categories: pregnant women, postpartum mothers, community/religious leaders, village midwives, health cadres, mothers with children aged 0–24 months, and traditional leaders (Sowohi). Data were collected through in-depth interviews, participatory observation, and stakeholder validation discussions, and were analyzed thematically using Braun and Clarke’s approach. Five main themes emerged: intergenerational gaps in understanding stunting and the first 1,000 days of life; food taboos and early introduction of complementary foods; the dual role of local cultural practices, including supportive practices (Bakera, Bafufu, Kuah Rujak and Sou Boso, Doa Rasai, and Suba) and potentially harmful practices (Barahu); the role of traditional leaders as cultural legitimizers; and cultural gathering points as strategic spaces for integrated nutrition education. The proposed model integrates midwives, health cadres, traditional and religious leaders, and family members through social and religious gatherings. A culture-based approach that preserves positive traditions while addressing potentially harmful practices may strengthen the sustainability of stunting prevention efforts in Tidore Islands City.
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Asuhan Keperawatan Pada Pasien Chronic Kidney Disease (CKD) Dengan Masalah Keperawatan Gangguan Pola Tidur Menggunakan Terapi Relaksasi Otot Progresif Di Ruang Sadewa RSUD Jombang
Eka Ayu Lestyaningsih, Sudarso Sudarso, Tiara Fatma Pratiwi, Leo Yosdimyati RomliShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1543 | Check in Google Scholar
Sleep pattern disorders are a common problem experienced by patients with chronic kidney disease (CKD) undergoing hemodialysis. This study aimed to describe nursing care for CKD patients with the nursing problem of sleep pattern disturbances through the administration of progressive muscle relaxation (PMR) therapy in the Sadewa Room at RSUD Jombang. The research method used a case study on two stage 4 CKD patients undergoing regular hemodialysis, selected based on inclusion and exclusion criteria. PMR therapy was given twice a day, in the morning and evening, for three consecutive days, with a duration of 10–15 minutes per session in July 2026. The results showed that before the intervention, both patients complained of difficulty sleeping, often waking up, frequently yawning, and having droopy eyes, with PSQI scores of 17 for the first patient and 16 for the second patient, which fall into the severe sleep quality category. After three days of intervention, both patients' PSQI scores dropped to 11 (moderate sleep quality), along with a decrease in complaints about difficulty sleeping and frequent waking. It was concluded that ROP therapy can improve sleep quality in both patients and is worth considering as a non-pharmacological intervention in the nursing care of CKD patients.5110-5118 -
Analisis Penerapan Green Building Pada Proyek Bangunan Di Area Relokasi Bencana Gunung Ruang
Josafat Juan Loho, Rilya Rumbayan, Febriane Paulina MakalewShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1539 | Check in Google Scholar
Green building is a building concept that considers the positive impacts of several aspects applied to a building, starting from the design stage through to building operation. This research examines seven public facilities an early childhood/kindergarten, an elementary school, a junior high school, a community hall, and three church units located in Zone 1 of an infrastructure development project supporting disaster relocation housing for the Mount Ruang eruption. The study aims to analyze and evaluate the existing conditions related to the green building concept, the extent to which and which green building aspects have been implemented in these buildings, and to map the points achieved against the green building concept across the following aspects: appropriate site development, energy efficiency and conservation, water conservation, material resources and cycles, indoor health and comfort, and environmental management. The method used is quantitative descriptive with a case study approach, employing the Greenship Rating Tools New Building V1.2 as the reference for data collection through analysis. Due to incomplete data and the fact that handover had not yet taken place meaning no operational data was available for the buildings the seven public facilities studied achieved the following scores: 13 points for the community hall, 11 points for the kindergarten, 8 points for the elementary school, 6 points for the junior high school, 6 points for Church Type A, and 4 points each for Church Types B1 and B2.
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Perbandingan Volume Dan Biaya Pekerjaan Struktur Metode Konvensional Dan BIM CUBICOST Pada Gedung Layanan Kesehatan Di Kota Manado
Farhan Hidayat, Deyke Junita Femeli Mandang, Steven Richard KamurahanShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1538 | Check in Google Scholar
Calculating the quantity of structural work is the basis for preparing a project cost estimate, yet it is still commonly done manually from two-dimensional drawings. This study compares the volume of concrete, the weight of reinforcement, and the cost of structural work obtained from the conventional method and from Building Information Modeling (BIM) using Cubicost TAS and TRB. The case study is a multi-storey healthcare building in Manado, covering pile caps, columns, beams, and floor slabs. Both methods used the same working drawings, element totals were summed from floor-by-floor results, and the same unit prices were applied, so that cost differences arise only from differences in quantity. The results show that Cubicost produced smaller quantities for all elements. Total concrete volume was 10,085.89 m³ with Cubicost compared with 10,370.79 m³ with the conventional method (2.75% difference), and total reinforcement weight was 1,683,944.68 kg compared with 1,728,855.34 kg (2.60% difference). The largest concrete difference occurred in columns (5.37%) and the largest reinforcement difference in pile caps (3.58%). Total structural cost was Rp 35,630,590,081 with Cubicost and Rp 36,593,798,662 with the conventional method, a difference of Rp 963,208,581 (2.63%). Because no independent field validation was available, the results show differences between the methods and do not establish which one is more accurate.5132-5137 -
Hubungan Antara Riwayat Anemia Pada Ibu Hamil Dengan Kejadian Bayi Berat Lahir Rendah (BBLR) Di Puskesmas Curah Tulis
Imroatus Sholeha, Mutmainnah Zakiyyah, Iit ErmawatiShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1549 | Check in Google Scholar
Anemia in pregnant women is a health problem that can increase the risk of low birth weight (LBW). Anemia reduces the blood's ability to transport oxygen and nutrients to the fetus, which may inhibit fetal growth during pregnancy. This study aimed to determine the correlation between a history of anemia in pregnant women and the incidence of low birth weight (LBW) at the Curah Tulis Community Health Center. This study employed a correlational analytical design with a cross-sectional approach. The population consisted of all mothers who delivered low birth weight (LBW) infants at the Curah Tulis Community Health Center in 2025. A total of 36 respondents were selected using total sampling. Data were obtained from antenatal and birth records and analyzed using the Chi-Square test and Fisher's Exact Test with a significance level of α = 0.05. The results showed that most respondents had a history of anemia, accounting for 24 respondents. Based on the birth weight category, 28 infants (77.8%) were classified as LBW and 8 infants (22.2%) weighed 1000 - <1500 grams. The Fisher's Exact Test yielded a p-value of 0.033 (p < 0.05), indicating a significant correlation between a history of anemia in pregnant women and the incidence of LBW. In conclusion, there is a significant correlation between a history of anemia in pregnant women and the case of low birth weight (LBW) at the Curah Tulis Community Health Center. Health workers are expected to strengthen efforts to prevent and manage anemia during pregnancy in order to reduce the risk of LBW.5138-5146 -
Pelatihan Seni Tari Pada Kegiatan Ekstrakurikuler Sebagai Sarana Pengembangan Kepercayaan Diri Siswa SMK Negeri 2 Semarang
Widya Alia Safiqoh, Joko WiyosoShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1552 | Check in Google Scholar
Dance ekstrakurricular activities at schools develop not only dance skills but also foster students’ self-confidence. This study described how dance training in an extracurricular program suports self-confidence among students of SMK Negeri 2 Semarang. Using a descriptive qualitative approach, data were collected through observation; interviewss with the advisor, trainers, and members; and documentation. The study draws on cretive dance theori, four aspects of dance training (physical, cognitive, affectice,and psychological), and self-confidence theory. The findings show that training proceeds in stages, form warm up and movement mastery to group rehearsal and performance assessment. The stages cover all four aspects: phsysical aspect (movement and flexibility), cognitive aspect (mastery of the material), and affective and phsychological aspect (dicipline, cooperation, and confidence to perform). According to the informants, rotation of line positions, positive reinforcement from trainers, and opportunities to perform help students be more convidents. This scaffolded approach and supportive training environmentare required to be able to help shy and introverted students develop.5147-5155 -
Peran Komunikasi Orang Tua Dalam Proteksi Anak Usia Sekolah Dasar Dari Kekerasan Seksual: Integrasi Formula Lasswell Dan Family Communication Patterns Theory Di Kota Depok
Elly Farida, Dewi Anggrayni, Indra Martian PermanaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1556 | Check in Google Scholar
Child sexual abuse cases in Depok City rose from 71 in 2023 to 92 in 2025, and most perpetrators came from the child's closest circle of relationships. This study analyses parents' protective communication process, the family interaction patterns underlying it, and its enabling and inhibiting factors by integrating Lasswell's Formula, Family Communication Patterns Theory (FCPT), and an Islamic communication perspective as a normative layer. A qualitative case study design was used, with Pancoran Mas, Sukmajaya, and Tapos sub-districts as embedded units of analysis. Data were collected through in-depth interviews with 17 informants comprising professionals, school principals, and parents and school committee members, and were analysed using the interactive model of Miles, Huberman, and Saldaña. All five of Lasswell's communication elements were present in every informant family, yet the quality of each element determined the child's response. Consensual families showed the most mature protective communication, whereas the protective typology, documented among victims' families, was the most vulnerable. The main barriers were cultural and technical rather than religious, and message quality was distinguished by the manner of speech. Child protection is shaped by the convergence of communication process quality, family typology, quality of speech, and structural support.5156-5164 -
Pengaruh Komponen Health Belief Model Terhadap Perilaku Konsumsi Menu Makan Bergizi Gratis (MBG) Pada Ibu Hamil Di Wilayah SPPG Bandar Negeri Suoh, Lampung Barat
Nelly Nur Laila, Dainty Maternity, Annisa Mayang SolihaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1557 | Check in Google Scholar
Consumption of Free Nutritious Meals (Makan Bergizi Gratis/MBG) among pregnant women is an important aspect of meeting nutritional requirements during pregnancy. However, program utilization is influenced not only by food availability but also by pregnant women's perceptions and beliefs regarding benefits, barriers, health risks, and the importance of nutritional adequacy. This study aimed to analyze the effects of the Health Belief Model (HBM) components, including perceived benefits, perceived barriers, perceived susceptibility, perceived severity, cues to action, and self-efficacy, on MBG consumption behavior among pregnant women in the SPPG area of Bandar Negeri Suoh, West Lampung. This study employed a quantitative method with a cross-sectional design. The sample consisted of 91 pregnant women who were beneficiaries of the MBG program, selected using purposive sampling. Data were collected using questionnaires and analyzed through multiple linear regression. The results showed that perceived severity was the most dominant variable positively and significantly associated with MBG consumption behavior (b = 0.749; t = 4.461; p < 0.001). Cues to action and self-efficacy also had positive and statistically significant effects (p < 0.001). In contrast, perceived benefits (p = 0.497), perceived barriers (p = 0.201), and perceived susceptibility (p = 0.534) did not show statistically significant partial effects. Simultaneously, the six HBM components had a statistically significant effect on MBG consumption behavior (p < 0.001), with an adjusted R-squared value of 0.679. In conclusion, perceptions of the severity of nutritional problems, cues to action, and confidence in one's ability to perform the behavior are important factors associated with MBG consumption among pregnant women. Strengthening nutrition education and healthcare worker support is necessary to optimize program utilization.
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Hubungan Tingkat Stres Kerja Dengan Hipertensi Pada Pekerja Puskesmas Jatisrono
Alliyana Lilin Wasriana, Titik Haryanti, Prita Devy Igiany, Nine Elissa MaharaniShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1536 | Check in Google Scholar
Hypertension remains a public health challenge that can lead to serious complications if left unmanaged. Work-related stress is a critical risk factor, particularly for healthcare workers facing heavy service workloads, administrative duties, and performance targets. This quantitative, observational-analytic study employed a cross-sectional design to identify the relationship between work-related stress levels and hypertension among healthcare workers at the Jatisrono Community Health Center (Puskesmas). The study used purposive sampling, resulting in a sample of 62 respondents from the total population of 62. Data were collected using a validated and reliable questionnaire and digital blood pressure monitors, then analyzed using the Spearman Rank test at a 95% confidence level. The results indicated that the majority of respondents experienced moderate work-related stress (69.4%) and fell into the pre-hypertension category (48.4%). A statistically significant relationship was found between work-related stress levels and hypertension (p = 0.037; r = 0.265). The positive correlation indicates that higher work-related stress is associated with higher blood pressure categories. This study's findings are expected to contribute meaningfully to strategies for managing work-related stress and maintaining the health of medical personnel in primary healthcare facilities.5178-5187 -
Perencanaan Kebutuhan Material Besi Dengan Material Requirement Planning: Perbandingan Teknik LOT For LOT Dan Least Unit Cost Pada Pembangunan Laboratorium Teknik Sipil
Novia Lendongan, Josef Arnoldus Johni Sumajouw, Frangky Ricardo TombokanShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1555 | Check in Google Scholar
unplanned material procurement in construction projects leads to cost overruns and work delays. This study aims to desig a material control model using the Material Requirement Planning (MRP) method and to determine the most efficient lot sizing technique for Engineering Laboratory And Workshop Building In Manado. The study employed a requirements, netting, lot sizing, and offsetting with a two-week lead time. The material examined was reinforcing steel, with an ordering cost of IDR 750,000 per order and a holding cost calculated from the cost of capital and depreciation. The results show that the net requirement for reinforcing steel from period 4 to period 12 was 105,996 kg. The Lot For Lot (LFL) technique resulted in a total cost of IDR 2,223,006.34, making LUC the most efficient technique, Therefore, MRP can serve as a basis for material procurement planning, and the selection of a lot sizing technique should consider the material cost burden.5188-5197 -
Evaluasi Kualitas Dosimetri Rencana Radioterapi 3DCRT Berdasarkan Parameter Dose Volume Histogram (DVH) Pada Kasus Metastasis Tulang Lumbal Di RSUD Bali Mandara
Dhea Sukma Rahmadanni, Rickhy Krisopras Kakiay, I Kadek Sukadana, Burlian Mughnie, I Wayan JuliasaShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1558 | Check in Google Scholar
Lumbar bone metastases may cause pain, neurological impairment, and reduced quality of life, requiring optimal radiotherapy planning. Three-Dimensional Conformal Radiation Therapy (3DCRT) is one of the radiotherapy techniques that can be used for bone metastases while considering dose distribution to the target and surrounding normal tissues. The dosimetric quality of a treatment plan can be evaluated using the Dose Volume Histogram (DVH), particularly through Planning Target Volume (PTV) parameters. This study aimed to evaluate the dosimetric quality of 3DCRT radiotherapy treatment plans for lumbar bone metastases at RSUD Bali Mandara based on D95%, D2%, and Dmean parameters. A retrospective descriptive observational study with a case series approach was conducted on four radiotherapy treatment plans for patients with lumbar bone metastases. Data were obtained from the Treatment Planning System (TPS) and descriptively analyzed based on PTV DVH parameters, while the mean dose of the Organs at Risk (OARs) was used as supporting information. The results showed that D95% ranged from 97.2% to 100.8%, D2% from 105.4% to 106.2%, and Dmean from 101.5% to 104.1% of the prescribed dose. All treatment plans had D95% ≥95% and D2% ≤107% based on the evaluation criteria applied in this study. Mean OAR doses varied among patients and were associated with differences in anatomy, PTV size and location, and the spatial relationship between the target and OARs. Based on these findings, all four evaluated 3DCRT treatment plans met the PTV dosimetric criteria applied in this study, while the OAR data provided supporting information on dose distribution to normal tissues.5198-5202 -
Pengaruh Variasi Kapasitas Rooftank Terhadap Kinerja Elemen Struktur Gedung Beton Bertulang
Nurul Fakhruzi Nurhamidin , Rudolf Estephanus Golioth Mait, Seska NicolaasShow Abstract | Download PDF | DOI: 10.31004/koloni.v5i4.1559 | Check in Google Scholar
This study evaluates the influence of rooftop water tank volume variations on the strength utilization of slabs, beams, and columns in the inpatient building of Budi Mulia Hospital, Bitung, and identifies the governing strength check. A quantitative analysis was conducted using a simplified analytical model with nine water volume scenarios ranging from 24,000 to 47,040 liters at 2,880-liter increments. Demand-to-capacity ratios (D/C) were evaluated for beam flexure and shear, column axial force–moment interaction about one axis and shear, and short-span slab flexure and punching shear. At the planned volume of 24,000 liters, all model checks yielded D/C < 1.00, with slab and beam flexural ratios of 0.830 and 0.741, respectively. At 47,040 liters, these ratios increased to 1.133 and 0.950, making slab flexure the governing check. The highest analyzed discrete volume satisfying all model checks was 35,520 liters, while 38,400 liters was the first scenario exceeding the slab flexural limit. Linear interpolation yielded an estimated model limit of approximately 36,952 liters. These findings indicate that slab flexure limits water volume increases within the analyzed configuration; establishing the actual building capacity requires verification of the assumptions and a more comprehensive assessment.5203-5210
