ABSTRACT This study aims to analyze the impact of the existence of the Muara Fajar Waste Disposal Site (TPA) in Pekanbaru on the income of the surrounding community. The research method employed is a qualitative approach, with data collection through in-depth interviews with community members involved in activities at the TPA, including scavengers, waste managers, and other economically im…
The sun bear (Helarctos malayanus) is classified as Vulnerable by the IUCN. This study aims to predict the habitat suitability distribution of the sun bear and identify the environmental variables influencing it within PT. Alam Bukit Tigapuluh, Tebo Regency, Jambi. The Maximum Entropy (MaxEnt) method was employed, which is effective for modeling species distribution based on presence-only data.…
ABSTRACT Oil palm (Elaeis guineensis Jacq.) is an important plantation crop in Indonesia, because of its high economic value and one of the leading plantation commodities in Riau which is used as a source of vegetable oil. This study aims to evaluate the interaction effect between mycorrhiza and Rock Phosphate fertilizer, single factor of mycorrhiza and Rock Phosphate fertilizer, and get the m…
This research was carried out in Jorong Koto Tangah Hilir, Tilatang Kamang District, Agam Regency. This study intends (1) to find out the current role of mamak towards nephews in the Minangkabau community in Jorong Koto Tangah Hilir (2) to find out the factors that cause changes in the role of mamak to nephews in the Minangkabau community in Jorong Koto Tangah Hilir. To answer the purpose of th…
This study aims to improve the learning outcomes of fifth grade students at SDN 17 Pekanbaru, with 28 students of class VA as the research subjects. This type of research is quantitative research with a pre-experimental method. This study uses the One Group Pretest-Posttest Design. In this design, before being given treatment, the sample is given a pretest (initial test) and at the end of l…
ABSTRACT This study explores the impact of corporate ownership structures, alongside the presence of political connections, on the corporate water disclosure practices of Indonesian agriculture companies listed on the Indonesian Stock Exchange (IDX) from 2019 to 2023. This study’s ownership structures include three components: institutional, managerial and public ownership. These are followe…
ABSTRACT Shallots (Allium ascalonicum L.) are an important horticultural commodity that is used as a cooking spice. Shallots are a superior commodity that is intensively cultivated. In Riau Province, the availability of shallots is not sufficient for the needs of the community, but Riau has a low level of land productivity. Efforts made by using Liquid Organic Fertilizer (LOF) from coconut wat…
ABSTRACT Maleic anhydride is an organic compound that has the molecular formula C4H2O3 with the IUPAC name 2,5-Furandione. The synthesis of maleic anhydride using Lummus technology is characterized by the use of n-butane and air as the main raw materials and the help of a Vanadium Phosphorus Oxide (VPO) catalyst, which is reacted in a fluidized bed reactor. Maleic anhydride is a basic chem…
ABSTRACT Sago bark is a byproduct of the sago starch filtering process that contains lignocellulosic components. The separation of these lignocellulosic components can be achieved through a lignification process. One chemical method of delignification employs an organosolv solvent. This research aims to determine the optimal concentrations of formic acid and acetic acid to achieve the highest …
Serikat Tolong Menolong is a group formed by the Batak community in the Pagar Jati area of North Sumatra to maintain the solidarity they possess. This association cannot be separated from the communication processes carried out by each of its members, especially interpersonal communication. Therefore, the aim of this research is to analyze five humanistic perspectives: openness, empathy, suppor…
Water pollution caused by agricultural and industrial activities has become a major environmental concern in recent years, as it degrades water quality and threatens the balance of aquatic ecosystems. One of the primary sources of water pollution is the use of Atrazine-based herbicides, which have a long half-life in aquatic environments and potentially disrupt aquatic ecosystems. Therefore, re…
In the current digital era, rural communities increasingly require digitalization to support various activities, particularly in communication and access to information. Rimba Makmur Village, located in Tapung Hulu Subdistrict, Kampar Regency, still relies on conventional communication methods that are less effective, such as verbal communication, paper-based leaflets, and limited social media …
Water is one of the resources that must be fulfilled every day. According to the National Standards Agency, the need for water is 60 to 120 L/day/capita. Waterpollution can occur due to industrial, agricultural, livestock and domestic activities. The research site is located at Gg.ridho, Jl. Rambutan, Sidomulyo Timur Village, Marpoyan Damai District, Pekanbaru City, where pollution at this …
Peatland fires are a recurring threat every year in Riau Province, including in Tanjung Belit Village, Siak Kecil District, Bengkalis Regency. Based on the 2023 data from the Ministry of Environment and Forestry on forest and land fires, 1,322.79 hectares of land were burned, including in Tanjung Belit Village. The impact of this disaster extends to affecting environmental, social, and economic…
The implementation of the program Kawasan Sehat that has been rolled out by Dompet Dhuafa since 2021 to 2023 has not yet achieved the healthy area indicator in terms of ecology, social, and economic aspects. Based on these conditions, several problems can be formulated that occur in the implementation of the program kawasan sehat Dompet Dhuafa, including: How to evaluate the implementation of…
Physics is a knowledge that studies physical events including processes, products and scientific attitudes that are cyclical, interconnected, and explain how natural phenomena are measured through observation and research. The process of absorbing material can be received directly through media in experimental activities, one of which is the use of media, namely PhET Simulation. The use of the …
Alum (Aluminum sulfate) is one of the chemicals commonly used in the coagulation process. However, alum has a negative impact on the environment so that biocoagulants need to be used to minimize the impact. Durian seeds (Durio zibethinus) have active components in the form of protein and starch that can act as environmentally safe biocoagulants. This study aims to determine the performance of a…
Physics studies the relationship between physics concepts and the development of science and technology, along with its application in everyday life. Therefore, physics lessons are very important to be taught in schools. The implementation of physics learning can be said to be effective if students are able to obtain final results in accordance with learning objectives, but in reality not all s…
The trade sector is an important component in contributing to increasing regional income, including fish traders. Fish traders have a very important role in the fisheries sector, because they are the fishery products that can be marketed to consumers. Apart from all that, other components in the fisheries sector are also equally important because they are an interrelated system. Income is a ben…
Most of the farmers in Geringging Jaya Village are rubber farmers and are classified as the lower middle class. There are several inhibiting factors such as: weather conditions, pests and diseases, as well as fluctuations in rubber prices received by farmers are relatively low. The purpose of this study is to find out the survival strategies applied by rubber farmers in Geringging Jaya Village,…