Kuantan Singingi Regency (Kuansing) is one of the districts crossed by two major rivers, namely the Batang Kuantan River and the Singingi River with a river flow area of 22,672 km². This study aims to analyze the impact of Unlicensed Gold Mining (PETI) activities on the diversity of macrozoobentos in the Batang Kuantan River, Kuantan Singingi Regency. Two observation stations were selected, ea…
This final project discusses various mixtilinear incircles and excircles related to the symmedian line of an arbitrary triangle. The symmedian is defined as the reflection of the median with respect to the angle bisector of a triangle, resulting in a proportional division of the triangle’s sides. The mixtilinear incircle is internally tangent to the sides of the triangle and the circumcircle,…
Mangifera sumbawaensis is an endemic wild mango from Sumbawa island. Wild mangoes have many biological activities including anticancer agents. In silico can be used to reveal the potency of wild mangoes as anticancer agent. The aim of this study are to (1) identify secondary metabolites from M. sumbawaensis leaves extract based on LC-MS/MS, (2) investigate anticancer activity of M. sumbawaensis…
The Myrtaceae family is one of the most diverse plant families and possesses significant economic value, primarily due to the presence of essential oils in its leaves, twigs, flowers, and fruits. However, overlapping morphological similarities among species within this family make identification based solely on morphological characteristics difficult. This study aims to analyze four DNA barcode…
Ixora javanica (Blume) DC. commonly known as soka, is a popular ornamental plant because of its beautiful flowers. Beyond its aesthetic appeal, this flower is rich in phytochemicals with significant health benefits, including antioxidant, anti-inflammatory, anticancer, and skin-brightening properties, making it a promising natural ingredient for safe applications in health and cosmetics. Howeve…
This final project discusses a development development of the mixtilinear ex- circle in the trisector of a triangle’s angle. A mixtilinear excircle is a circle that is tangent to the extensions of two sides of a triangle and is externally tangent to the circumcircle of the triangle. By constructing the angle trisectors of an arbitrary triangle, many mixtilinear excircles can be formed. The ma…
Corrosion is a process of degradation of metal-based materials that is detrimental to industry, especially in the oil and gas sector, due to the interaction between metals and their environment. In industry, one of the factors causing corrosion is the activity of microorganisms such as sulphate reducing bacteria (SRB) that grow under anaerobic and thermophilic conditions. SRB utilize sulfate io…
This study aims to analyze aquifer zones and groundwater quality in Sialang Sakti Village, Tenayan Raya District, Pekanbaru City, Riau Province, using the Schlumberger configuration geoelectric method and the geochemical method. The geoelectric method is used to identify subsurface resistivity characteristics related to groundwater presence, while the geochemical method is employed to test wate…
Groundwater is a very important natural resource for human life, especially in areas with limited access to surface water. Identification and mapping of aquifer zones are important steps in ensuring the availability of quality and sustainable groundwater. This study aims to analyze the characteristics of aquifer zones in Sialang Sakti Village, Tenayan Raya Subdistrict, using the Wenner configur…
Groundwater serves as a primary resource for the community of Sidomulyo Timur, Marpoyan Damai District, Pekanbaru City, primarily for household and industrial needs. Increased domestic and industrial activities in this area have the potential to cause groundwater contamination through waste infiltration. This study aims to analyze the level of groundwater contamination by combining the Wenner C…
DNA barcodes are short DNA sequences used in molecular identification of organisms. The Fabaceae family is a member of the Fabales order characterized by pod-type fruits. This study used 30 species (consisting of 6 genera, each genus has 5 species). This study aims to analyze four DNA barcodes (rbcL, matK, trnL-trnF IGS and ITS) in the fabaceae family. This study used unilocus and multilocus in…
Famili Cucurbitaceae merupakan famili yang sangat beragam dalam tumbuhan berbiji tertutup dan sering dijadikan obat tradisional karena menghasilkan metabolit sekunder berupa Cucurbitacin B, D, E, dan I. Identifikasi dan penentuan hubungan kekerabatan antar spesies dalam famili Cucurbitaceae menggunakan lokus barkode DNA tunggal sampai saat ini masih kurang efisien. Tujuan dari penelitian ini ia…
In 2017, President Donald Trump officially recognized Jerusalem as the capital of Israel and relocated the United States Embassy from Tel Aviv to Jerusalem, marking a major turning point in the direction of U.S. foreign policy regarding the Israeli-Palestinian conflict. This research focuses on analyzing the underlying factors behind this decision, with particular attention to the influence of …
The Sustainable Development Goals (SDGs) are a global framework for sustainable development that has been agreed upon by the United Nations member states to be achieved by 2030. Its success requires contributions from various stakeholders, including the business sector. PT Pertamina Hulu Rokan (PHR), as a company in the oil and gas industry, plays a role in mitigating climate change, which is t…
Service quality is the level of excellence or specialty of a service that can meet the needs and expectations of the community. Public service is an activity carried out by the government and other institutions to meet the needs of community services in accordance with laws and regulations. This service can be in the form of public goods, public services, and/or administrative services. The pur…
Deforestation is a series of forestry crime activities (TIPIHUT) ranging from area claims, buying/selling areas, illegal logging, forest burning, oil palm planting, and finally, area occupation/settlement. This has led to prolonged conflicts, such as tenure conflicts and human-wildlife conflicts, which must be faced by the Tesso Nilo National Park Authority. This is the background of the resear…
The jemput bola service program is intended for people with disabilities so that they can access population administration. However, research shows that many people with disabilities in Pekanbaru City do not have legal identity documents. In addition, frequent system maintenance hampers access, and information about the program has not been well conveyed. The purpose of this research is to impr…
Waste management is an important aspect in efforts to maintain a clean and healthy living environment in Kuantan Singingi, the Environmental Service is responsible for waste management. Waste and its management is still a major problem in environmental, health, social and cultural aspects which has not yet been resolved. This research is motivated by various waste problems that exist in modern …
Marpoyan Damai Sub-district, Pekanbaru City is one of the regional apparatus that has an important role in providing public services to the community, the success of public service delivery at the Regency / City level is largely determined by the performance of public services at the Sub-district level. This study aims to determine and explain the performance of public service organizations and…
Evaluation of the implementation of prisoner rehabilitation is critical to ensure that rehabilitation goals can be achieved effectively. Each rehabilitation program needs to be evaluated to determine whether it has successfully reduced the risk of recidivism and improved the skills and positive behavior of inmates. In addition, the needs of each inmate vary, whether in terms of psychological as…