ABSTRACT Dimethyl formamide is an organic compound in the form of a colorless liquid that can be mixed with water and most organic liquids. DMF is a common solvent used for chemical reactions. There are two types of DMF, namely pure DMF and technical DMF. The difference between these two types of DMF is in their physical properties, where pure DMF is odorless while technical DMF (grade/degrade…
ABSTRACT Methyl Methacrylate is a chemical with organic components for leather coatings, the cosmetics industry, the paint industry, the household equipment industry, the polymer industry and for other industries. The manufacture of Methyl Methacrylate at this factory uses the Direct Oxidative Esterification process. This factory is planned to operate for 330 days per year and work continuousl…
ABSTRACT A web-based construction project management system was developed to assist in the management of construction projects. The method used is Research and Development (R&D) with prototype development method. This application is designed to facilitate project management in monitoring, reporting progress and bookkeeping of construction projects. Testing is done in two ways, namely blackbox …
ABSTRACT The dissemination of information related to mosque da’wah activities—such as religious lecture schedules, event registration, and general announcements—is often done manually through social media. This process typically takes about 2–3 minutes daily and may lead to delays or errors in communication. To address this issue, this study aims to design and develop a mosque da�…
ABSTRACT Pineapple peel extract and citronella contain active compounds that have antibacterial properties that can inhibit or kill Staphylococcus aureus and Escherichia coli in hand sanitizers. This study aims to determine the antibacterial activity of hand sanitizer from pineapple peel and citronella extracts against Staphylococcus aureus and Escherichia coli. The research was carried out ex…
ABSTRACT The aims of this research were to study the effect of breadfruit starch coating on barangan banana during storage and to obtain the appropriate breadfruit starch concentration to extend the shelf life of barangan banana. The research was conducted experimentally using a completely randomized design method with treatments OF breadfruit starch concentration: control, 1%, 3%, 5%, and 7%.…
ABSTRACT The need for soybeans in Indonesia continues to increase, but this is not accompanied by an increase in soybean production. One of the efforts to increase soybean production is by expanding the planting area by providing mycorrhiza. Another factor that needs to be considered in the growth of soybean plants is the provision of phosphorus fertilizer. This study aims to determine the eff…
ABSTRACT Shallot (Allium ascalonicum L.) is a horticultural commodity that is widely consumed by the Indonesian people as a mixture of spices and medicines. Onion production in Riau fluctuates from year to year so it is necessary to develop cultivation techniques by combining the use of organic fertilizers with inorganic fertilizers. The source of organic fertilizer material can be composted e…
This research was conducted from May to July 2024 at the Faculty of Fisheries and Marine Sciences, Riau University, Pekanbaru. The purpose of this study was to determine the best dose of ketapang leaf powder (Terminalia catappa) on water chemistry parameters in the growth medium of baung fish fry (Hemibagrus nemurus). The research method used a one-factor Completely Randomized Design with 4 lev…
ABSTRACT This study aims to determine the effect of Competence, Self-Efficacy and Internship Experience on Work Readiness in Students of the 2021 Class of the S1 Management Study Program, Riau University. The population in this study were active students of the S1 Management Faculty of Economics & Business, Riau University, class of 2021. Primary data was collected using a questionnaire a…
ABSTRACT This research aims to determine the influence of employee retention and turnover intention on employee performance in PT Rohul Sawit Industri. The population in this study were all employees of PT. Rohul Sawit Industri, numbering 153 people. The sampling technique used in this research was Simple Random Sampling using the Slovin formula with a confidence level of 5%. So the number…
ABSTRACT This study aims to analyze the risk level of musculoskeletal complaints and work stress among harvesting employees at PT. Arara Abadi, Siak Regency. This research was conducted to determine the extent to which ergonomic factors and workload affect employees' health and well-being in a physically demanding work environment. The research employs a quantitative method with a descript…
ABSTRACT This study aims to determine the influence of social media marketing and exo brand ambassador on purchasing decisions for scarlett whitening body care products. The population of this study were 112 exo-l riau. The sampling technique in this study used Nonprobability Sampling. The data collection technique used a questionnaire which was analyzed using multiple linear regression. …
ABSTRAC This study aims to determine the effect of the implementation of E-filing System, compliance level, and tax knowledge on taxpayer compliance with compliance costs as a moderating variable. The population in this study is individual taxpayers registered at KPP Pratama Tampan Pekanbaru. The sampling method used in this study is non-probability sampling. The data analysis technique used i…
ABSTRACT This study aims to provide empirical evidence on the effect of environmental performance, intellectual capital, and capital structure on financial performance. The population in this study was all mining and plantation companies listed on the Indonesia Stock Exchange (IDX) and participating in the PROPER program from the Ministry of Environment and Forestry (KLHK) in the 2020–2023 p…
ABSTRACT Propylene glycol is one of the organic compounds commonly used as a food preservatives, cosmetic raw materials, wetting agents for chewing gum, monomer in the synthesis of polyester, and anti-freeze liquids. The demand for propylene glycol is increasing along with the development of the industry, especially the cosmetics and textile industries. The market value of propylene glycol glo…
ABSTRACT Indonesia has exported ten shipments of acetophenone through three suppliers to several countries, including China, Japan, and Singapore. However, since domestic production is still insufficient to meet demand, Indonesia still needs to import acetophenone from several countries. This situation presents a significant opportunity to establish a plant to meet domestic demand while compet…
ABSTRAC Indonesia still imports from various countries due to domestic supply shortages. The global acetophenone market was valued at US$ 219 million in 2021 and is expected to grow rapidly from 2022 to 2032. This situation presents a significant opportunity to establish a factory to meet domestic demand and compete with international producers from China, India, and Germany. The demand for ac…
ABSTRACT Independent oil palm farming is one of the key sectors supporting the livelihoods of farmers in Tandun District, Rokan Hulu Regency. However, challenges such as low productivity, limited capital, the use of inferior seedlings, and suboptimal cultivation practices remain major obstacles to increasing farmers' income. This study aims to analyze the income of independent oil palm farmers…
This article explains how the Indonesian Government is trying to handle the Mail Order Bride cases which are currently occurring in Indonesia. The Mail Order Bride case is a mode of Transnational Crime (Human Trafficking) which in its handling requires assistance from many parties such as family and neighborhood as well as government officials who work in the field of marriage matters. The impo…