The scattering of radiation rays from Co-60 affects the absorbed dose received by cancer cells and healthy organs. Herein, we tried to investigate the distribution of absorbed dose with skin-to-source distance (SSD) variations inside the cervix area due to irradiation of Co-60 from different locations....

In this research, a layered composite that utilizes a perforated plate was developed as a bullet-resistant material that works by breaking the tip of the projectile at the beginning of penetration and reducing the weight of the material. A Composite configuration with 3 layers with a steel plate was...

The utilization of water resources for various necessities keeps increasing from year to year, as the impact of the growth of population and the development of the activity. Dams have great benefits and keep great potential danger and risk of physical damage and failure function. This study aims to determine...

This study investigated the properties of mesocarbon anodes in the half-cell of sodium-ion batteries. The behavior of mesocarbon was examined using electrochemical methods. Cyclic voltammetry (CV) was applied with various scan rates to reveal the anodic-cathodic voltage and peak current. The CV profile...

This paper reports a field investigation of the metal contact phenomenon in gas pipelines buried underneath urban areas by utilizing the combination of current attenuation survey (CAS) and ground penetrating radar (GPR) methods. CAS examined pipeline integrity based on standard NACE SP0502 and utilized...

Fabricating porous material can be done using various raw materials, one of them uses plant-based natural fiber to form composite materials. In this research, the natural fibers of sugarcane waste are synthesized into micro cellulose. Subsequently, the micro cellulose is developed as a filler for the...

Interpretation of the subsurface rock layer structure model has been carried out using geomagnetic data in the Palu Valley. Geomagnetic data is obtained through field measurements using the Proton Precision Magnetometer. Modeling is done using total magnetic field intensity data. The research objective...

Research has been carried out on the identification of andesite rock distribution using the geoelectric method of resistivity in Buluri Village, Ulujadi District, Palu City. This study aims to identify the distribution of andesite rocks using the Automatic Array Scanning (AAS) measurement method with...

Determination of East Kalimantan, particularly Sepaku Sub-District, Panajam Paser Utara Regency, and Kutai Karta Negara Regency as the New Capital City of Indonesia requires an in-depth and comprehensive study of various aspects, including the natural disaster of the earthquake. Based on earthquake records...

One of the areas in Indonesia that are at risk of being affected by disasters is East Kalimantan. East Kalimantan is designated as IKN (State Capital City) by the government of the Republic of Indonesia. East Kalimantan was chosen as the new IKN due to its geographical location in the middle of the Indonesian...

The increasing population growth and rapid development of Pekalongan in recent years have caused an increase in clean water needs that cannot be fulfilled from surface water due to pollution problems, so people prefer to use groundwater. Therefore, it is necessary to determine the aquifer system to know...

Research has been conducted on the analysis of nickel ferrite (NiFe2O4) nanoparticles based on iron sand. The purpose of this study was to produce nickel ferrite nanoparticles and to determine the physical and optical properties of nickel ferrite nanoparticles. In this study, the synthesis of nickel...

The electrical blackout on August 4, 2019, in several areas of Jakarta and surrounding areas took a long time to recover and the vital loads lose electrical supply. This power outage indicates that there is a weakness in the electrical defense scheme. Based on the conventional standard, when the frequency...

Generating electricity using fossil fuels can increase global warming. To reduce the use of fossil fuels, the implementation of Renewable Energy becomes a choice. One example is a Photovoltaic (PV) installation connected to a grid. The addition of on-grid PV on the load side may provide an undesirable...

Power outages that sometimes still occur cause disruption of economic activity around the area, especially the city of Bau-bau, it is necessary to forecast the electrical load in order to determine the characteristics of the electrical load in the area. Short-term electrical load forecasting is used...

Multispectral imaging has many applications in agriculture, such as the prediction of the internal qualities of fruit and vegetables. Multispectral is preferable to Hyperspectral imaging for fast in-line sorting and grading machine vision due to fewer wavelength bands applied. Oil palm fresh fruit bunches...

With population growth which increases every year, it will also be accompanied by a reduction in natural resources and energy. These natural resources are in the form of food needs. With the increasing demand for food and energy needs, there must also be the development of technology in the field of...

The rapid development of industry causes more and more waste to be produced and can lead to pollution. One of those is the pollution of the leather tanning industry in Sukaregang, Garut, West Java. Tannery waste is disposed of directly into the river area. Seepage of waste below the surface from river...

Land Subsidence is a phenomenon of subsidence of the land surface compared to the reference point. This phenomenon can be caused by natural factors, groundwater extraction, and building factors. Geoelectrical method was used to analyze the subsurface conditions in Curugpanjang consisting of four lines....

Phosphorus in nature is very important both in water and in soil. The form of the compound phosphate has become an important study in agriculture and the environment. Potentiometry is a recommended effective method to measure or monitor ion phosphate’s concentration in nature compared to the spectrometric...

The inhibiting factors for plant and fish growth in aquaponics systems are farmers who never control and monitor the quality of Dissolved Oxygen (DO) levels and the degree of acidity/Power of Hydrogen (pH) of water properly. Uncontrolled and monitoring of the quality of pH and DO in water properly and...

Spent coffee grounds contained 45% carbohydrate, 26% lignin, 13% lipid, and 13% protein. To improve the value of spent coffee grounds in a sustainable way, a study was done on how to convert carbohydrates into fermentable sugars which could be used to make value-added products. To accomplish this, a...

Eel (Anguilla marmorata (Q.) Gaimard) oil consists of unsaturated fatty acids such as Omega-3 and Omega-6, which quickly oxidize to become rancid under the influence of oxygen be inhibited by microencapsulation by the spray drying method. This study was designed to identify the microcapsule characteristics...

Actinomycetes are Gram-positive bacteria that could produce antibacterial compounds, and it is able to survive in high temperatures environment such as hot springs. In this study, Actinomycetes were isolated from Bora hot springs before, characterized, and determined their potential in – other antibacterial...

Endophytic microbes are microbes that during their entire life cycle are in plant tissues. Actinomycetes is one of the endophytic microbes that produce secondary metabolites and can be found in the roots of onions. This study aimed to isolate, characterize and determine the growth rate of endophytic...

Heavy metals are detrimental to living organisms and ecosystems because they are non-biodegradable and accumulate in the environment and food chain. The research objective was to determine the maximum contact time, pH, and the isothermal adsorption model for the adsorption of Ni2+ ions by the chitosan...

Microencapsulation technology has been used in a variety of fields including materials such as buildings, walls, industrial, medicine, and cosmetics. One of the most active research on microencapsulation is microstructure formation. Important properties of microcapsules such as releasing rate of active...

Diabetes mellitus is thought to play a role in increasing free radicals, de-creasing antioxidants and triggering oxidative stress, and causing damage to GLUT 2. GLUT 2 on the pancreatic cell membrane is responsible for the transport of blood sugar in mice which will stimulate insulin secretion. Dandang...

Continuous cement manufacturing has increased the percentage of CO2 emitted into the air, thereby increasing the problem of global warming and its damaging effects on the environment. Therefore, adopting a more sustainable strategy to replace conventional concrete has become essential. Geopolymer concrete...

Teak (Tectona grandis L.f.) is a medicinal plant that has been traditionally used by people around the forest as medicine. Teak leaves contain antibacterial compounds. This study aims to find out what compounds are contained in teak leaves extract and test antibacterial activity against E. coli bacteria....

Hydroxyapatite, abbreviated as HAP (Ca10(PO4)6(OH)2), is the main component in bone structure which is osteoconductive. The HAP either synthetic or natural source, is widely used in biomedicine especially orthopedics or dental repair. In this study, HAP was synthesized using calcium and phosphate. Calcium...

This research aim is to detect the change point year of annual maximum daily rainfall at eight rainfall stations in the Mamminasata region for the period 1989 to 2020. The Mamminasata region covers Makassar City, Maros District, Sungguminasa/Gowa District, and Takalar District. Research data were obtained...

The Gender Inequality Index (GII) is an index that describes the failure of human development achievement due to the inequality of gender that is measured by several aspects such as health, empowerment, and labor market access. The Geographically Weighted Panel Regression (GWPR) is a developed model...

An earthquake is a shaking incident of the earth due to the movement or shift of rocks in the lithospheric part. This occurs suddenly due to the movement of tectonic plates. Central Sulawesi is an area of Sulawesi Island that has a high level of seismicity. This is because Sulawesi Island has many active...

Public health development indicators are a health indicator set that can describe health problems. The health indicators set can, directly and indirectly, increase longevity and healthy life expectancy. Central Sulawesi was listed as the sixth province in Indonesia with the lowest public health development...

Many potential medicines have been discovered from marine natural products (MNPs). It indicates that marine compounds are essential sources in drug development and discovery. Although many marine compounds show particular biological activity, few are recorded as antibacterial compounds. Therefore, finding...

Given V be a set of vertices on a graph G. A set D ⊆ V, is dominating set of G = (V, E) if all the vertex that is not in the set D are neighbors to at least one vertex of D. The smallest number of elements in D is known as the domination number. A set D ⊆ V(G) is called...

The route of delivering patients using an ambulance is important thing because it relates to a person’s life. It Requires finding an efficient route for patient delivery so that it can facilitate the ambulance journey. In this study, the ambulance route from the public-health centers to the referral...

Central Sulawesi placed as the 4th of addicted drugs highest number in Indonesia. This paper proposes batik education treatment as an alternative for BNNK Palu in conducting its controlling program. There are three running programs; that are education ( C ...

The conversion of agricultural land into residential areas has resulted in a decrease in the availability of agricultural land, so it is necessary to implement an intensive agricultural pattern with a high level of productivity. One of them is by applying a vertical farming pattern or known as verticulture....

Hypertension means the increase of systolic and diastolic blood pressure upper 140 mmHg and 90 mmHg, respectively. Hypertension is a major problem in health that can be caused sudden death in patients. Globally the percentage of adherence towards HTN pharmacological treatment is poor due to the faint...