Jurnal Online Universitas Surabaya

Jurnal Online Universitas Surabaya
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    Penyalahgunaan Pemanfaatan Ruang Rusunami di Kalibata City Berdasarkan Undang-Undang Nomor 6 Tahun 2023

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    The dynamic development of society has increased the need for houses. In fact, space is increasingly limited and the population is increasing. So, it is necessary for space to be utilised as in Article 33 of the 1945 Constitution relating to space utilization. The utilization of space in question is the provision of an area that is used as a place of residence for the community in order to achieve a welfare state. In this case, simple flats are owned as one of the implementations of space utilization by the government because it is aware of the arrangement, management, and utilization of space. Owned simple flats are included in the category of public flats intended for low-income people. In relation to space utilization, flats are used as residential places but in fact, they are used as places of prostitution that occurred in Kalibata City in 2020, involving minors who were forced to serve four men. This is not in accordance with the utilization of flats that can be reviewed from KKPR and Law Number 6 Year 2023 in relation to norms, standards, procedures, and criteria. This research is a legal research with a statutory and conceptual approach. The primary source of legal material in this research comes from laws and regulations, while secondary legal material is legal literature. This research aims to describe the correlation of spatial planning with flats and government supervision related to the misuse of simple flats owned in Kalibata City

    Adsorpsi Zat Warna Acid Blue 29 Menggunakan Pristine Multiwalled Carbon Nanotubes

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    Abstract—The increasing pollution of dyes in industrial wastewater has recently attracted attention to obtain effective and efficient dye removal techniques. In this study, pristine multiwalled carbon nanotubes were tested for their performance as adsorbents to remove acid blue 29 dye. Multiwalled carbon nanotubes were synthesized by the catalytic chemical vapor deposition method from liquefied petroleum gas with Fe-Co-Mo/MgO catalyst. Adsorption experiments were carried out in batches by varying the initial concentration of dyes. The purpose of this study was to observe the performance of pristine multiwalled carbon nanotubes to adsorb dyes. In addition, observation of the suitability of the adsorption equilibrium model for this system was also carried out. The results showed that pristine multiwalled carbon nanotubes were proven to be able to remove acid blue 29 dye. The experimental results showed that the percentage of dye removal was higher when the initial concentration of dye in the liquid was lower. The pristine carbon nanotubes used were able to reduce dyes from the liquid by 68.8% in just one process cycle. Adsorption equilibrium stu dy showed that Freundlich equilibrium model is more suitable for this system than Langmuir equilibrium model. The results of this study have shown that multiwalled carbon nanotubes have a very good chance as an adsorbent to remove dyes from industrial wastewater. Keywords: adsorption, carbon nanotubes, equilibrium, model, removal Abstrak—Meningkatnya polusi zat warna pada limbah cair industri akhir-akhir ini telah menarik perhatian untuk mendapatkan teknik penghilangan zat warna tersebut yang bekerja secara efektif dan efisien. Pada penelitian ini pristine multiwalled carbon nanotubes diuji kinerjanya sebagai adsorben untuk menghilangkan zat warna acid blue 29. Multiwalled carbon nanotubes disintesa dengan metode catalytic chemical vapor deposition dari liquified petroleum gas dengan katalis Fe-Co-Mo/MgO. Eksperimen adsorpsi dilakukan secara batch dengan memvariasikan konsentrasi awal zat warna. Tujuan penelitian ini adalah untuk menguji kinerja pristine multiwalled carbon nanotubes tersebut untuk mengadsorpsi zat warna. Disamping itu juga dilakukan uji kesesuaian model kesetimbangan adsorpsi untuk sistem ini. Hasil penelitian menunjukkan bahwa pristine multiwalled carbon nanotubes terbukti bisa menghilangkan zat warna acid blue 29. Hasil eksperimen menunjukkan bahwa persen removal zat warna semakin tinggi ketika kosentrasi awal zat warna dalam cairan semakin rendah. Pristine carbon nanotubes yang digunakan mampu menurunkan zat warna dari cairan sebanyak 68,8% dalam satu siklus proses saja. Studi kesetimbagan adsorpsi menunjukan bahwa model kesetimbangan Freundlich lebih sesuai pada sistem ini dibandingkan kesetimbangan model Langmuir. Hasil penelitian ini telah menunjukkan bahwa multiwalled carbon nanotubes memiliki peluang yang sangat bagus sebagai adsorben untuk menghilangkan zat warna dari limbah cair industri. Kata kunci: adsorpsi, carbon nanotubes, kesetimbangan, model, remova

    Green Process Innovation and its Impact on Sustainability Performance: The Mediating Role of Green Supply Chain Management in the Food and Beverage Industry

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    Purpose: The food and beverage sector, which contributes significantly to plastic waste in Indonesia, may reduce its usage of single-use plastics by using green process innovation (GPI). By incorporating economic and environmental goals into the strategic management of supply chain operations, Green Supply Chain Management (GSCM) can propel this. This study aims to evaluate the role of GPI and GSCM in achieving sustainable corporate performance (SP) in Indonesia, especially in the food and beverage industry. Method: Purposive sampling was used to select samples from the food and beverage industry during the 2021-2023 period which resulted in 12 companies as samples. Path analysis was used as a data analysis method in this study. After that, Warp-PLS 8.0 software was used to process the data obtained. Result: The results showed that GPI has a positive and significant influence on SP, and GPI has a positive and considerable influence on GSCM. Meanwhile, GSCM does not influence SP, and GSCM cannot mediate the influence between GPI and SP

    PENGARUH CSR, PROFITABILITAS, LEVERAGE. LIKUIDITAS, DAN FIRM SIZE TERHADAP AGRESIVITAS PAJAK

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    This quantitative study aims to analyze the influence of CSR, Profitability, Leverage, Liquidity, and Firm Size on Tax Aggressiveness in energy sector companies listed on the Indonesia Stock Exchange (IDX) during the 2022–2024 period. The research context stems from the crucial role of tax as the state’s fiscal backbone, which is often challenged by corporate tax aggressiveness—a strategy to minimize tax burden that potentially impedes state revenue and economic growth. Secondary data were collected from company financial reports and analyzed using the multiple linear regression method with the aid of SPSS version 27. Tax Aggressiveness was measured using the Effective Tax Rate (ETR) proxy. The results indicate that, simultaneously, all independent variables (CSR, Profitability, Leverage, Liquidity, and Firm Size) significantly influence Tax Aggressiveness. However, partially, only Leverage was found to have a significant influence, while CSR, Profitability, Liquidity, and Firm Size did not have a significant influence. The study concludes that the level of Leverage is the single most important factor individually influencing corporate tax strategy in the energy sector, while the combination of all factors collectively has a significant impact on Tax Aggressiveness decisions

    A Multi-Product, Single Period Sustainable Closed-Loop Supply Chain Network Design: A Scenario-Based Stochastic Optimization Approach

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    Purpose: This study examined the optimization of a stochastic sustainable closed-loop supply chain network for multi-product, single-period operations in a beverage company in Benin City, Nigeria, with a focus on five beverage products (Coke, Fanta, Sprite, Big Cola, and Eva). Method: The research employed a scenario-based stochastic mixed integer linear programming (SMILP) modeling approach to address demand uncertainties while minimizing costs and environmental impact. The network integrates forward and reverse logistics, including manufacturing, warehousing, retailing, disposal, recycling, recovery, redistribution, and remanufacturing stages. Result: Key findings reveal optimal product allocation scenarios for each product, demonstrating significant cost savings through remanufacturing and recycling. For instance, 94-100% of PET bottles were recovered and reused, reducing reliance on virgin materials and lowering production costs. The total environmental impact was quantified at 481,360 kg of CO₂, with variations across products due to differences in recycling efficiency and reverse logistics costs. The total network cost was optimized to N144,315,000, balancing economic and sustainability objectives. The study highlights the viability of closed-loop supply chains in emerging markets, emphasizing the role of stochastic optimization in managing demand variability. Practical implications include strategies for enhancing resource efficiency, reducing waste, and improving circular economy practices in the beverage industry

    Design and Cost Estimation of Modern Angkringan Cart

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    This research aims to develop an angkringan cart design derived from traditional angkringan inspiration to become modern, then parse the estimated manufacturing costs. The design concept combines traditional and modern elements using a three-wheeled motorcycle to increase mobility and appeal to millennials. The method used is descriptive qualitative with data collection techniques through interviews, observations, and literature studies. The results showed that the modern angkringan cart based on a three-wheeled motorcycle has a minimalist, aesthetic, and efficient design. The materials used include hollow iron, aluminium plate, and wood to ensure durability. Red, yellow, and white colours were chosen to increase visual appeal and branding. The estimated cost of making the cart includes the cost of purchasing a motorcycle, materials, painting, accessories, labour services, as well as unexpected expenses, with a total budget of around IDR 50,500,000. This design offers high flexibility in mobility and operational efficiency. Further studies can evaluate the effectiveness of the design and maintenance over a period of time to improve the performance of modern angkringan carts

    Penerapan Teknik Quilting dalam Pemanfaatan Kain Perca untuk Pengembangan Desain Fashion Outerwear

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    The fashion industry is a rapidly growing sector that also contributes to increasing textile waste, one of which is fabric scraps. Often perceived as worthless, fabric scraps have great potential to be transformed into functional and aesthetic products. This study aims to explore the utilization of fabric scraps through quilting techniques in developing sustainable outerwear designs. The research uses a qualitative exploratory method with the M.A.C.A.K approach (Material, Tools, Method, Attributes, and Context). The results show that fabric scraps can be processed into textured and layered materials suitable for outerwear design. The resulting products are jackets and vests developed under the concepts of nature- inspired fashion and sheer layering, emphasizing aesthetics, functionality, and sustainability

    Evaluasi Penggunaan Antibiotik Profilaksis Klasifikasi Access pada Pasien Bedah Obstetri-Ginekologi (Obgyn)

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    Penggunaan antibiotik yang tidak tepat dan berlebih merupakan penyebab utama resistensi antibiotik. Unit bedah merupakan salah satu unit dengan pemakaian antibiotik yang tinggi, salah satunya adalah jenis bedah Obstetri-Ginekologi (obgyn). Pemerintah telah menetapkan indikator mutu nasional dan mewajibkan seluruh rumah sakit untuk menerapkan Program Penatagunaan Antibiotik (antibiotics stewardship) dengan mengelompokkan antibiotik dalam kategori AWaRe : Access, Watch dan Reserve. Evaluasi penggunaan antibiotik merupakan salah satu indikator mutu program pengendalian resistensi antibiotik. Penelitian ini bertujuan menganalisis pola penggunaan antibiotik profilaksis pada pasien Obstetri-Ginekologi (obgyn) dengan metode Anatomical Therapeutic Chemical/Defined Daily Dose (ATC/DDD) dan Drug Utilization (DU) 90%, serta mengevaluasi kesesuaian berdasarkan Pedoman Penggunaan Antibiotik (PPAB) dan Formularium Nasional (FORNAS). Studi observasional retrospektif dilakukan pada 118 pasien Obgyn di sebuah rumah sakit di Surabaya selama Mei- Juni 2024. Hasil menunjukkan 100% pasien menerima antibiotik profilaksis dengan total 55,51 DDD/100 hari rawat. Penggunaan antibiotik didominasi kategori Access (54,5%), namun Ceftriaxone (Watch) paling sering digunakan (16,25 DDD/100 hari rawat). Analisis DU 90% mengidentifikasi empat jenis antibiotik yang diurutkan dari persentase terbanyak: Ceftriaxone (29,28%), Metronidazole (26,48%), Cefazolin (26,26%), dan Cefixime (14,30%). Evaluasi kepatuhan PPAB menunjukkan kesesuaian jenis dan dosis (100%) tinggi, tetapi kesesuaian waktu penyuntikan (46,7%) dan durasi pemberian (75,6%) rendah.   Inappropriate and excessive use of antibiotics is the main cause of antibiotic resistance. The surgical unit is one of the sections with high antibiotic use, one of which is the Obstetrics-Gynecology (obgyn) surgical procedure. The government has set national quality indicators and requires all hospitals to implement an Antibiotics Stewardship program by grouping antibiotics into the AWaRe categories: Access, Watch, and Reserve. Evaluation of antibiotic use is one of the quality indicators of the antibiotic resistance control program. This study aims to analyze the pattern of prophylactic antibiotic use in Obstetrics-Gynecology (obgyn) patients using the Anatomical Therapeutic Chemical/Defined Daily Dose (ATC/DDD) and Drug Utilization (DU) 90% methods and evaluate the suitability based on the Antibiotic Use Guidelines (PPAB) and National Formulary (FORNAS). A retrospective observational study was conducted on 118 patients at a hospital in Surabaya in May-June 2024. The results showed that 100% of patients received prophylactic antibiotics with 55.51 DDD/100 bed-days. Antibiotic use was dominated by the Access group (54.5%), but Ceftriaxone (Watch) was the most frequently used 16.25 DDD/100 bed-days. DU 90% analysis identified four main antibiotics: Ceftriaxone (29.28%), Metronidazole (26.48%), Cefazolin (26.26%), and Cefixime (14.30%). PPAB compliance evaluation showed the appropriate type and dose (100%) high, but time (46.7%) and duration of administration (75.6%) low

    Nano Influencers And Social Factors As Drivers Of Hedonic Consumption Among Generation Z In Indonesia's Social Commerce

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    Purpose: This study seeks to shed light on the often-overlooked role of nano influencers in shaping hedonic consumption among Generation Z (Gen-Z) in Indonesia’s rapidly evolving social commerce landscape. While much attention has been given to macro influencers, our research suggests that smaller, more trusted voices may hold the key to authentic consumer engagement. Method: A cross-sectional survey of 200 Gen-Z consumers was conducted, utilizing Structural Equation Modeling (SEM) via Smart PLS to analyze the influence of nano influencers, reference groups, and communities on hedonic consumption. The research framework focuses on the social dynamics of peer validation over family influence. Result: The findings indicate that nano influencers significantly enhance the influence of peer groups on Gen-Z’s hedonic consumption, while family influence appears less relevant. This result points to a shift in consumer behavior, where peer-driven validation is dominant. Marketers are encouraged to reconsider their strategies, placing greater emphasis on nano influencers for more genuine connections in the social commerce era

    Memperluas Penelitian Psikologi: Dari Masyarakat WEIRD Menuju Inklusivitas Global

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    The dominance of WEIRD (Western, Educated, Industrialized, Rich, and Democratic) countries in global psychology research limits the diversity of perspectives. This affects the indexing and global exposure of psychology research from countries outside these categories, one of which is Indonesia. ANIMA Indonesian Psychological Journal, as one of the Indonesian psychology journals committed to international standards, has taken a number of steps to increase global access to Indonesian psychology, with the ultimate goal of realizing a more inclusive psychology. These steps are explained in more detail in this editorial article.Dominasi negara WEIRD (Western, Educated, Industrialized, Rich, and Democratic) dalam penelitian psikologi global membatasi keberagaman perspektif. Hal ini berpengaruh indeksasi dan eksposur global penelitian psikologi dari negara di luar kategori tersebut, salah satunya Indonesia. ANIMA Indonesian Psychological Journal, sebagai salah satu jurnal psikologi Indonesia dengan komitmen terhadap standar internasional, telah bergerak dengan sejumlah langkah untuk meningkatkan akses global terhadap psikologi Indonesia, dengan tujuan akhir mewujudkan psikologi yang lebih inklusif. Pergerakan tersebut dijelaskan secara lebih detail dalam artikel editorial ini

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