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Bioscrubber merupakan separator yang dapat digunakan untuk menurunkan konsentrasi hidrogen sulfida (H2S) pada biogas. Permasalahan yang mempengaruhi kinerja bioscrubber diantaranya yaitu jumlah oksigen berlebih (excess oxygen) dan suhu yang tidak sesuai dengan kebutuhan operasi sehingga menyebabkan tidak maksimalnya kinerja bioscrubber dalam menurunkan konsentrasi hidrogen sulfida (H2S). Untuk meminimalisir permasalahan ini maka dilakukan analisa data terkait kebutuhan jumlah oksigen berlebih dan suhu operasi yang optimal. Pada penelitian ini dilakukan pengumpulan data secara langsung yaitu dengan pengambilan data produksi biogas di Pembangkit Listrik Tenaga Biogas (PLTBg) Sei Mangkei yang kemudian dilakukan pengolahan data terkait kebutuhan excess oxygen dan suhu operasi pada proses separasi H2S. Dari penelitian yang dilakukan, diketahui bahwa proses penurunan konsentrasi H2S menggunakan bioscrubber yang ada di PLTBg Sei Mangkei membutuhkan excess oxygen sebanyak 363,4% dari kebutuhan oksigen teoritis dan suhu operasi 38oC untuk dapat menurunkan konsentrasi H2S hingga 97,5%.

Penelitian ini bertujuan untuk mengetahui bagaimana fiscal stress dipengaruhi oleh diversifikasi pendapatan daerah dan dana perimbangan. Jenis data yang digunakan adalah kuantitatif. Menggunakan data yang dikumpulkan selama periode lima tahun (2018-2022), penelitian ini menganalisis 145 sampel dari 29 Provinsi di Indonesia. Estimasi data panel yang digunakan adalah Fixed Effext Model (FEM). Data dianalisa dengan menggunakan metode analisis data uji asumsi klasik. Penemuan penelitian ini menunjukkan bahwa: (1) Diversifikasi Pendapatan Daerah secara parsial tidak berpengaruh terhadap Fiscal Stress (2) Dana Perimbangan secara parsial berpengaruh positif dan signifikan terhadap Fiscal Stress (3) Diversifikasi Pendapatan Daerah dan Dana Perimbangan secara simultan berpengaruh terhadap Fiscal Stress sebesar 96,49% secara positif dan signifikan.

This study aims to evaluate customer satisfaction with the menu offerings at "Rajanya Seafood" using the Lean Startup approach. This method was chosen because it enables businesses to develop products that better meet customer needs and preferences through rapid experimentation cycles, continuous feedback, and regular updates. Research data was collected through direct surveys of "Rajanya Seafood" customers, focusing on aspects such as taste quality, menu variety, pricing, and service. The collected data was analyzed to identify areas needing improvement as well as potential innovations to enhance customer satisfaction. The study results indicate that the Lean Startup approach is effective in quickly understanding and responding to customer needs, thus contributing to increased customer loyalty and satisfaction. These findings are expected to serve as a reference for "Rajanya Seafood" and other culinary businesses in applying the Lean Startup strategy to achieve optimal customer satisfaction levels.      

Computer-based Accounting Information Systems (AIS) have become a vital element in managing organizational finances in the digital era. To explore the role and benefits of computer-based AIS in increasing efficiency, accuracy and transparency of financial reports. By integrating information technology in the accounting process, AIS enables real-time data collection, processing and analysis, thereby supporting faster and data-based decision making, while also identifying challenges faced in implementing AIS, such as user training needs and issues. data security. That computer-based AIS not only speeds up transaction recording and information management, but also increases collaboration between departments and allows for more accurate and timely reporting. Therefore, computer-based AIS has proven to be an important strategic tool for organizations to improve financial performance and competitiveness in increasingly competitive markets.

This study aims to analyze the service quality of the online shop information system for beauty products at PT. Cantika Alami Indonesia. The research focuses on identifying the company’s needs, challenges in system development, and the benefits of better system implementation. Data collection methods include observation, interviews, questionnaires, and literature review. The findings reveal that the user aspect achieved a satisfaction score of 79.07%, indicating positive acceptance and experience. The functional aspect scored 75.54%, suggesting that the system functions well, though further improvements are needed. Meanwhile, the non-functional aspect received a score of 65.18%, highlighting the need for enhancements in performance and accessibility. Overall, the online shop system is rated well by users, but there is room for improvement, particularly in non-functional aspects. This study is expected to serve as a reference for companies and business practitioners in improving their e-commerce information systems to better meet consumer needs.    

In an increasingly interconnected world, computer networks play a crucial role in business operations. This research focuses on the analysis of the client-server network system at PT. XYZ, which shares a building with several other companies. The objective is to evaluate the current network infrastructure, identify potential issues, and propose improvements to enhance performance and security. A qualitative approach was employed, utilizing case study methods, interviews, and observations to gather in-depth data on the network's configuration, IP address management, and security measures. The findings indicate that while the existing network functions adequately, there are significant risks associated with user access rights and the need for regular maintenance. The implications of this study suggest that implementing stricter security policies and upgrading bandwidth could mitigate risks and improve overall network reliability, thereby supporting business productivity.

Safety Leadership merupakan proses interaksi antara pemimpin dan pekerja untuk mencapai tujuan  keselamatan  yang  sangat penting dalam keberlangsungan proyek. Safety  Leadership Penerapan Keselamatan, Kesehatan Kerja Dan Lingkungan Dalam Proyek Konstruksi (Studi Kasus  Pembangunan  Gedung  Teater  Kabupaten  Karanganyar),  penelitian  untuk  mencari pengaruh safety leadership PT. Bettindo Bintang Perkasa terhadap perilaku keselamatan pekerja, mengetahui kepatuhan dan kedisiplinan pekerja dalam memakai Alat Pelindung Diri, khususnya pekerja pada ketinggian. Metodologi penelitian membahas rancangan, variabel penelitian & definisi operasional, serta teknik pengumpulan & analisis data. Langkah penelitian dengan menggunakan cross sectional, data diperoleh dari lembar checklist observasi dan wawancara. Hasil  dan  Analisa  penelitian  menyajikan kajian evaluasi penerapan prosedur kerja Kesehatan dan  Keselamatan  Kerja,  evaluasi  kesesuaian  teknik  aman  bekerja  di  ketinggian,  penerapan penggunaan alat pelindung diri &  perangkat  penahan jatuh  serta tenaga  kerja  bekerja  pada ketinggian.

This study aims to describe the understanding of mathematical concepts of X grade students of SMK ASISI on Trigonometry material. The type of research is descriptive qualitative research. the subjects are 3 students of class X AKL SMK ASISI who have high, medium and low categories, these students were selected on the basis of the results of daily test scores. This study refers to 5 indicators of understanding of mathematical concepts and the instruments in this study are written tests and interviews. Based on the results of the analysis, it can be concluded that students' understanding of mathematical concepts in trigonometry material is still relatively low and students have not met the indicators of understanding mathematical concepts from the results obtained from 12 students, there are 1 student who gets high scores, 7 students get medium scores, and 4 students get low scores.  

This study aims to analyze user satisfaction with the PLN Mobile application using the Service Quality (SERVQUAL) method. PLN Mobile is a digital innovation from PLN, offering services such as electricity payment, token purchase, and e-commerce for electrical equipment. The SERVQUAL method assesses the gap between customers' expectations and perceptions across five dimensions: tangibles, reliability, responsiveness, assurance, and empathy. Data collection involved questionnaires focusing on users' perceptions and expectations, complemented by direct observations of user interactions with the application. The findings reveal negative gaps across all Service Quality dimensions, indicating that customer perceptions fell short of their expectations. The largest gap was identified in the assurance dimension (-23.2), followed by responsiveness (-16.88). The tangibles dimension also showed significant shortcomings (-8.48), mainly concerning the application's interface and functionality. While the application performed relatively well in terms of reliability and responsiveness, substantial improvements are needed across all dimensions to enhance user satisfaction. These results offer strategic insights for improving PLN Mobile to become more responsive, reliable, and aligned with user needs in the future.

This study aims to analyze the student attendance system at SMP Santo Leo Jakarta and identify information technology-based solutions to enhance efficiency and accuracy in attendance recording. The school currently relies on a manual attendance system prone to recording errors, delayed reporting, and data manipulation. The research employed the Waterfall method, involving observation, interviews, questionnaire data collection, and literature study. The findings reveal that the manual system received low ratings, with average scores ranging from 40% to 42% in terms of usability, effectiveness, and functionality. However, the proposed technology-based system achieved a future expectation score of 80.74%, indicating the school's willingness to adopt a more modern system. An integrated attendance information system is expected to improve productivity, provide real-time information, and facilitate parental involvement in monitoring student attendance.

Organizations must be able to adapt and innovate to maintain their edge in the increasingly competitive era of globalization. Employee performance is a critical component that contributes to organizational success. An organized and sustainable job training program is one of the most effective methods. This research is a descriptive qualitative research, with a literature study approach to analyze the role of training in improving employee performance. The data sources in this study consist of various scientific articles, journals, books, and research reports that focus on the relationship between training and employee performance. The results show that employee training has a significant impact on individual and organizational performance. Based on the literature review conducted, there is a consensus that a structured and relevant training program can improve employees' skills, knowledge and motivation. By understanding the factors that influence training effectiveness, organizations can formulate more appropriate strategies to achieve desired business goals.

Sanitation workers play a vital role in maintaining environmental cleanliness. However, many of them neglect their personal hygiene. Sanitation workers are professions that regularly wear closed shoes for long periods,the humid, hot, and dirty work environment promotes fungal infections in toenails, known as onychomycosis. The purpose of this study is to analyze the presence of the fungus Trichophyton rubrum on the toenails of the sanitation workers of the Surabaya Environmental Service Department. This study is a descriptive laboratory observation. The research was conducted from February 23 to March 13, 2024. Sample collection took place at Surabaya Environmental Service Department, and the study carried out at Mycology Laboratory of the Medical Laboratory Technology Department, Poltekkes Kemenkes Surabaya. The samples in this study consisted of toenails from 30 sanitation workers members. The examination was conducted using the culture method on SDA media, incubated for 7-14 days, followed by macroscopic and microscopic observations. The results showed that 2 samples were positive for Trichophyton rubrum (6.7%), 23 samples were positive for Aspergillus sp., (76.7%), 4 samples were positive for Rhizopus sp., (13.3%), and 1 sample was positive for Penicillium sp., (3.3%). The conclusion is, out of 30 samples, 2 individuals (6.7%) tested positive for Trichophyton rubrum, while the remaining 28 samples (93.3%) tested negative for Trichophyton rubrum.

State regulations state that village funds come from the State Budget (APBN) and are used to support governance, development, development, and social activities as well as community empowerment. It is hoped that the existence of village funds will increase the sources of income for each village, and the addition of village income by the government will improve public service facilities.1. As a result, a sentiment analysis of village officials will be carried out in this study. The Naive Bayes approach will be used to classify public sentiment as part of this investigation. We will evaluate two methods to see which produces more accurate results. In addition, the village government's function as the most important social institution in the community is essential for setting standards, facilitating socialization, and allocating resources. Furthermore, some Eweta community members have not received assistance, which could cause social rivalry among neighbors. Through sentiment categorization, responses will be categorized as either positive or negative. Based on feedback from visitors, this study attempts to assess the validity of the two approaches put to the test and offer insights into the caliber of services rendered by the village administration.

This research aims to analyze the operation of the Cargo Hold Bilges System in preventing flooding on MVs. Meratus Malino. Researchers conducted this research while conducting a Sea Practitioner (PRALA) for 12 months starting from January 29 2023 to February 5 2024 on board the MV. Meratus Malino is a container carrier type ship managed by the shipping company PT. The Meratus Line operates domestic shipping services on the route Jakarta-Surabaya-Makassar-Bitung-Anggrek (North Gorontalo)-Surabaya-Jakarta-Bawean-Jakarta-Semarang. The population in this study was the MV crew. Merastus Malino consisted of 20 people, while the sample was the crew of the MV ship. Meratus Malino who is in charge or has responsibility for operating the Cargo Hold Bilges System totals 16 people consisting of the MV deck crew. Meratus Malino totaling 9 people and MV engine crew. Meratus Malino numbered 7 people. This research method uses a qualitative method using a descriptive approach, while for the data source the researcher uses secondary data sources, while the data collection instruments are questionnaires, field studies and interviews. The results of this research show that in operating the Cargo hold Bilges system, a system and several components such as the bilge pump, ejector, seachast valve, injection valve connected to the bilge pump and hydraulic valve are needed which can function properly and more optimally in ship operational activities. . And to prevent flooding in the hold, it is necessary to check the hold regularly and if you see standing water in the hold, immediately make an order to empty the hatch so that the hatch is dry and the cargo remains protected from flooding in the hold.

The road environment not only influences the physical aspects of a city but also significantly impacts the psychological state of road users. This study aims to explore the relationship between road infrastructure such as sidewalk design, lighting, and signage, with perceptions of urban aesthetics and road psychology within the context of detailed urban development. Qualitative research methods were employed, including field observations, in-depth interviews, and document analysis, to assess how these factors affect the behaviors and feelings of road users and surrounding residents. Findings indicate that well-designed road infrastructure can enhance feelings of safety, comfort, and visual satisfaction among road users, whereas poor integration may lead to stress and discomfort. The implications of this research underscore the importance of considering psychological aspects in the planning and development of detailed urban environments to create road environments that are not only functional but also support the psychological well-being of the community.    

The background of this research is that vertiqua is considered to have high production costs and small profits. Therefore, a business analysis is needed to increase the effectiveness of the fish farming business using the vertiqua system. The purpose of this study is to analyze the aquaculture business using the vertiqua system including capital and profit obtained. This research uses qualitative methods with descriptive explanations. The results of the research that has been done show that the R / C Ratio value obtained is 1.66, meaning that every 1 cycle cost expenditure will get 1.66 revenue. Koi fish farming using the vertiqua system is said to be feasible to continue because the R / C Ratio value is 1. The JWPM value with the calculation of 8 cycles for 1 year is 1.4, meaning that it takes 2 months and 2 days for the capital to return. Based on the business analysis conducted, the production of koi fish seeds using the upper biofical filter vertiqua system can be said to be feasible and has the potential to be further developed, because it can provide good profits with a good JWPM. In addition, cultivation using the upper biofical filter vertiqua system is very efficient in providing care for koi fish cultivation.    

In the era of information technology advancement, web applications have become a means of seeking information. However, with technological progress, they have become increasingly vulnerable to cyber attacks such as SQL Injection and Cross-Site Scripting (XSS). This research aims to implement the Teler-waf Web Application Firewall (WAF) to protect web applications from such attacks. The research methodology includes the implementation of the Teler-waf WAF, analysis of web application security, and testing the speed of attack detection. The results show that Teler-waf is effective in preventing attacks, and its integration with Telegram bots provides real-time notifications to system administrators, enhancing security responsiveness. This research contributes to strengthening web application security and understanding the role of the Teler-waf WAF in addressing cyber threats.

The policy for using the MyPertamina application issued does not rule out the possibility of differences of opinion due to changes in the policy. There are many positive, neutral, and negative responses to the MyPertamina application implementation policy. To see the public's reaction to the MyPertamina application implementation policy, it can be seen through various media, including social media. Twitter is a social network that is widely used by people in Indonesia. The number of Twitter users in Indonesia reached 18.45 million in 2022, making Indonesia the fifth largest Twitter user country in the world. Researchers conducted a sentiment analysis of the search results for tweets containing the keyword "MyPertamina" using the support vector machine algorithm. 382 tweet data were obtained and classified using the support vector machine algorithm. Support vector machine is a supervised learning algorithm for data classification. SVM is very fast and effective in solving text data problems. Text data is suitable for classification with the SVM algorithm because the basic nature of text tends to be high-dimensional. Of the 382 data analyzed, the support vector machine classification using the RBF kernel with parameter C=2 gave the highest accuracy value of 80.51%, precision value of 81%, recall value of 81%, and F1 score value of 80%.

An information system is a series that includes aspects of software, hardware and brainware in a structured manner with performance in a process that is interconnected so as to create a certain desired product, then the development of website-based system infrastructure can make it easier to data warehouse electronic products for both incoming and outgoing goods. for the admin, however, from the ongoing data warehouse process there are several problematic factors that influence it, namely, electronic product warehouse data collection for incoming and outgoing goods still uses a simple Microsoft Excel format which takes a long time and there are many warehouse data collection archives on computer storage as reports so it is vulnerable to viruses.

Performance is a performance of the level of success that exists in employees based on the entire process that has been carried out in relation to certain activities during the period determined by the company, especially in the sales sector to achieve turnover for electrical and mechanical products offered to consumers so that further analysis is needed. To further determine the potential performance, use the SWOT method which has 4 parameters such as strengths, weaknesses, opportunities and threats. After carrying out a SWOT analysis, an evaluation of the previously known SWOT conclusions can be determined.