Publication Search

Due to the busy activities outside the home, some people do not have time or forget to water their plants, so when they return home they find that the plants have died from drought. Therefore, to overcome this problem by conducting research using Internet of Things technology. The aim of this research is to design an automatic watering tool to overcome manual watering and support learning. This prototype uses a NodeMCU ESP8266 as the main controller, a soil moisture sensor is used to read soil moisture.  Soil moisture sensors are used to detect soil moisture. If the soil humidity is below the minimum limit, the watering process will be active and the watering process will be active if the NodeMCU ESP8266 receives commands from the smartphone.

An experiment was conducted to study the effect of adding different levels of urea fertilizer (ppm Urea-N0,75,150,225,300) on the effectiveness of bio-nitrification in the studied soil. The study treatments for this experiment were (4 soils of different textures and locations × 5 urea levels × 3 replicates) in an experiment in which a completely randomized design (CRD) was used. It was incubated at laboratory temperature (25°C) for 40 days, during which the amount of formed nitrates and remaining ammonium was measured every ten days, noting the replacement of lost water every two days. The highest percentage of formed nitrates (39.8%) was recorded from the ammonium added to Basrah soil after ten days of incubation, followed by Kut soil, which recorded 29.8%, and less than that in Shatra soils (24.2%) and Fajr soils (23.7%). After that, the efficiency of nitrification decreased in the subsequent incubation periods up to 40 days of incubation.The percentage of ammonium remaining from urea added to the soil was recorded after the four incubation periods at 20.0 ppm (when adding 225 ppm urea to the Qurna soil), which differed significantly from the rest of the studied soils.

This study examines the application of engineering professionalism and ethical conduct in the construction of Building X, focusing on the quality of both substructure and superstructure works. The research was conducted through field observation, interviews with project stakeholders, and literature review, analyzed using a qualitative descriptive approach. Several issues were identified on site, including bore pile misalignment, waterlogging due to excess soil accumulation, poor concrete quality (honeycomb), and work delays caused by reinforcement order errors and subcontractor replacement. The assessment of professionalism and ethics refers to the 2021 Indonesian Code of Ethics for Engineers. The findings indicate that several aspects of professionalism, such as supervisory decisiveness, technical responsibility, and proactive communication, were applied appropriately. However, deviations were also observed, particularly in planning, quality control, and safety implementation. The study recommends improved coordination between supervisors and contractors, technical training for workers, and stronger enforcement of ethical compliance to enhance the overall quality of construction outcomes.

Agroforestry is also a form of sustainable agriculture model. Agroforestry systems are formed of three main components, namely forestry, agriculture, and livestock. The agrosilvopastura system is the combination of woody components (forestry) with agriculture (annuals) as well as livestock on the same land management unit. The priority order of the most important alternative options for sustainable agriculture includes strengthening farmer institutions, developing a cadre of farmers/farmer groups aware of sustainable agriculture, and increasing demonstration activities for sustainable agricultural technology. Financial analysis shows that all agroforestry systems are economically viable, and agrosilvopastura provides the most inputs compared to agrosilnikultur and silvopastura. Erosion that occurs on agroforestry land agroforestry, especially agrosilvoculture in the buffer zone of Southeast Aceh District is not harmful because it is smaller than the allowable erosion (<30.6 tons/ha/yr). The total biomass and carbon of stands in agroforestry systems with agrosilvopastura type of 103.17 and 46.74 tons per hectare, respectively, are similar to the total biomass and carbon of stands in mangrove forests. carbon in Rhizophora apiculata mangrove forest with a density of 463 trees per hectare, which were 169.46 (biomass) and 47.08 (carbon) tons per hectare, respectively. Agrosilvopastura systems can play a role in mitigating floods compared to monoculture farming systems for each hectare of land for every 1 hour of work.

This study aims to explore in depth the implementation of the Geret Sapu tradition in Jambuwok Village, including an analysis of its lexical and cultural meanings, as well as its relevance to the teaching of Indonesian Language and Literature at the senior high school level. The research focuses on the traditional practices of the Jambuwok Village community, located in Mojokerto Regency, using a qualitative descriptive approach. Data were collected through documentation and interview techniques, with local residents serving as the research subjects. Data validity was ensured through source and method triangulation. Data analysis was carried out in three stages: data reduction, data display, and conclusion drawing. The findings reveal that the Geret Sapu tradition consists of two main stages: preparation and implementation. The ritual involves six symbolic objects, namely: a broomstick, water jug (kendi), mat, pillow, bolster, and soil. Semantic analysis was conducted through the interpretation of lexical and cultural meanings. These findings indicate that the cultural values embedded in the Geret Sapu tradition can be integrated into Indonesian Language and Literature learning as contextual material grounded in local culture.

This study aims to describe Ecocriticism and Ecological Logic of Ama Nara Short Story by Silvester Petara Hurit. This study uses an ecocritic approach with a descriptive qualitative research method. The results of the Ecocriticism and Ecological Logic research of Ama Nara Short Story by Silvester Petara Hurit are as follows, (1) nature is the highest manifestation of Lamaholot society. The ecological logic that being modern in Ama Nara's view does not have to leave nature and ancestors. Ecocriticism of the attitude of the main character of the short story, Ama Nara who is not tempted by the modern lifestyle, (2) the attachment of farmers and nature. Ama Nara's ecological logic to protect the environment, continue to care for the fertility of the soil naturally, and that is actually much more valuable. Ecocriticism lies in Ama Nara's attitude to persist in choices, and (3) empowerment of natural resources. Ama Nara's ecological logic creates a local food barn (hoku) so that food needs are met. Ecocriticism lies in Ama Nara's attitude to remain consistent in maintaining traditional life by continuing to empower existing natural resources that make her family happy.

Currently, the world is facing Global Warning Phenomena, El Nino and La Nina, each of these natural phenomena makes above-average rainfall at a time and place and an area, especially impacting large cities that are passed through by water due to high rainfall. With inadequate city channels to accommodate rainwater flow, it results in, among other things, high floods, landslides due to the soil no longer being able to accommodate high rainfall, high Rob floods due to seawater overflowing into coastal areas of the city. Based on the disaster data due to high rainfall, Research, Handling and Mitigation Planning is needed with the aim of obtaining data for drainage design. The study is the observation of rainfall for 2 years, 5 years, 10 years, and 20 years, so that by calculating the intensity of rain using the Gumbel and Pearson III Log distribution methods, accurate data is obtained to determine the drainage dimensions that must be made in a city and the dimensions of retaining walls along the coast to overcome storm disasters in coastal areas or big cities.

Program strategis nasional (PSN) in Indonesia public welfare through social, economic,environmental, and governance dimensions. Findings indicate that limiting truck operations during peak hours generally contributes to reduced traffic congestion, improved road safety, and lower levels of pollution and noise in residential areas. However, the effectiveness is constrained by weak enforcement, frequent rule violations by operators, and limited crosssector coordination. To enhance the policy's positive impact, this study recommends strengthening law enforcement, utilizing monitoring technologies, and developing a more integrated and participatory logistics system. When consistently and collaboratively implemented, the policy has significant potential to support the success of NSPs and improve community welfare.

Oil palm development in Indonesia faces various agronomic constraints, especially related to soil chemical properties that are less supportive of productivity. This study aims to identify the status of soil chemical properties on oil palm land in Saliki Village, Muara Badak District, East Kalimantan, to support more appropriate land management. The research was conducted from September to November 2024 using a purposive random sampling method on 13 hectares of land, with six sampling center points and four subsamples per point. Laboratory analysis was conducted on soil pH, C-organic content, total N, available P, potential K, cation exchange capacity (CEC), and base saturation. The results showed that the soil in the 6-year-old oil palm land had a pH of 3.63-3.93 and base saturation of 13.69-13.81%, while at the age of 15 years, the pH decreased to 3.12-3.38 and base saturation was only 4.62-6.95%. Meanwhile, available P and potential K levels tended to increase with increasing plant age. Based on these findings, fertilization is recommended according to the IOPRI standard for mineral soils as follows: for 6 years old, urea 2.75 kg/year, TSP 1.75 kg/year, and KCl 2.75 kg/year, while for 11 and 15 years old, urea 3.25 kg/year, TSP 2 kg/year, and KCl 3 kg/year. This study emphasizes the importance of periodic monitoring of soil chemical properties as a basis for sustainable management of oil palm plantations.

Watering plants is an important activity that cannot be ignored in order to maintain sufficient air intake for optimal growth. Manual watering methods, which are commonly carried out according to a schedule, are often inefficient because they require significant allocation of time and energy. Improper watering techniques are one of the risks of plant growth factor failure, where unmaintained soil moisture can cause plants to wilt and die. This study aims to develop an automatic irrigation system based on the Internet of Things (IoT) that utilizes light energy as its power source, with the aim of being able to save time, lighten human work, and at the same time optimize the use of energy resources. This system is designed to monitor soil conditions in real-time and regulate watering automatically, supported by a sustainable light energy source. The results of this study indicate that the automatic watering system based on the Internet of Things (IoT) developed and powered by light energy is able to overcome the problem of plant drought effectively, while saving time and lightening human work in watering activities. 

This study aims to examine the implementation of post-mining environmental rehabilitation programs carried out by PT Bukit Asam Tbk in the Tanjung Enim mining area, South Sumatra. Coal mining activities have significant ecological impacts, especially on vegetation damage, soil erosion, and habitat degradation. In this context, rehabilitation efforts are a crucial step to restore the ecosystem and ensure environmental sustainability. The method used in this study is a qualitative literature study with a descriptive-analytical approach to official company documents, environmental reports, and relevant academic references. The results of the study indicate that PT Bukit Asam has implemented various rehabilitation strategies, including revegetation, wastewater management, and community empowerment through agroforestry programs. The success of this program is reflected in the increased vegetation cover, land stability, and biodiversity indicators in the reclamation area. However, challenges such as natural factors and limited supervision still need to be addressed. In conclusion, the rehabilitation practices carried out by this company can be used as a model for sustainable post-mining management in Indonesia. This study recommends the need for multi-sector collaboration and increased transparency and monitoring technology to support long-term effectiveness.

Enterobius vermicularis, or pinworm, continues to be a public health concern, particularly among children in coastal and densely populated areas. Though it is classified as a non-Soil Transmitted Helminth (non-STH), its fecal-oral transmission route allows rapid spread, especially where hygiene practices are inconsistent. In Indonesian coastal communities such as Lasiana, Kupang, limited studies have focused on the intersection between environmental factors, personal hygiene, and parental knowledge in relation to enterobiasis. This study aimed to determine the prevalence and morphological characteristics of Enterobius vermicularis in children aged 3–9 years living in the coastal area of Lasiana Beach, Kupang. A descriptive observational study was conducted involving 81 heads of households and 24 children as research participants. Data were collected through questionnaires distributed to parents to assess sanitation conditions, hygiene practices, and knowledge levels. Perianal samples were obtained from the children using the clear tape (scotch tape) method and examined microscopically to identify E. vermicularis eggs. Findings revealed that 21% of the children tested positive for E. vermicularis. The eggs displayed typical morphological features—oval shape with one flattened side and a transparent double-layered shell. Despite most respondents reporting good hygiene behavior and environmental sanitation, cases of infection persisted. Limited access to handwashing facilities and dense housing conditions were identified as contributing risk factors. The presence of Enterobius vermicularis infections despite adequate sanitation and knowledge highlights a gap between awareness and effective daily practices. These findings underscore the need for strengthened community-based health education and consistent monitoring in high-risk coastal areas to prevent enterobiasis among children.

Environmental health is very important for individual and community life. A healthy environment can improve the quality of life of the community to be better. Rapid community growth is one of the evaluations for the government to be able to create a healthy environment in the middle of a city filled with air, water, and soil pollution. The government's efforts to overcome environmental damage are to create green open spaces, one of which is Tebet Eco Park. This study aims to analyze the condition of cleanliness and environmental management in Tebet Eco Park towards environmental health in improving the quality of life of the community. Qualitative methods are used through in-depth interviews with various related parties. The analysis focuses on the condition of cleanliness and environmental management towards air, water, and soil quality; capacity and hygiene of sanitation facilities; and waste management. The results of the study are expected to provide recommendations to improve the environmental health of Tebet Eco Park and the quality of life of the community, including visitor management strategies, improving sanitation facilities, and environmental education programs.

Horticultural commodities are an important component in the development of agriculture that continues to grow. In order to fulfill family nutrition, horticultural cultivation is one of the routine jobs of farmers in Kawangu Village, Pandawai District-East Sumba which is located in a coastal area with an altitude of 40 meters above sea level. The soil conditions that are more dominated by sand and rocks cause farmers in the location to experience obstacles in fulfilling organic fertilizers as an important input in the process of cultivating horticultural plants. This community service activity is expected to provide new knowledge about making solid organic fertilizers so that farmers can apply them to horticultural plants. Community service activities are carried out using the PRA (Participatory Rural Approach) method including observation, problem identification, counseling, making solid organic fertilizers, mentoring and evaluation. Through this activity, farmers have succeeded in making solid organic fertilizers using local materials available around the horticultural land and have been applied directly in the cultivation of horticultural plants. This community service has been successfully implemented independently by farmers by utilizing leaf litter and livestock manure around the horticultural land.

This research aims to develop liquid organic fertilizer (LOF) made from goat livestock waste and paitan (Tithonia diversifolia) conducted in Makale, Tana Toraja Regency, from March to June 2025. This study aims to determine the response of cucumber plants to the application of LOF derived from the combination of goat livestock waste and paitan plants. Goat livestock waste contains macro nutrients such as nitrogen (N), phosphorus (P), and potassium (K), while paitan plants are green organic materials rich in nutrients and easily decomposed. The combination of both is expected to naturally improve soil fertility and optimally support the growth and yield of cucumber plants. The research method uses a Completely Randomized Design (CRD) with four different LOF concentration treatments and five replications. Parameters observed include plant height, number of leaves, stem diameter, number of flowers, number of fruits, and fruit weight per plant. The LOF production process is carried out through fermentation for 21 days with a ratio of goat livestock waste and paitan of 3:1, and the addition of EM4 as a microorganism activator. This research also aims to evaluate the effectiveness of LOF application on growth parameters (plant height, number of leaves) and yield (number and weight of fruits) of cucumber plants, and compare it with treatments without LOF or with inorganic fertilizers. The results of this research are expected to serve as a reference for local farmers in developing organic fertilizers based on local resources that are environmentally friendly, efficient, and sustainable to increase agricultural productivity in the Tana Toraja region.

Worm disease is included in the neglected diseases group, which is a chronic infection that often does not show clear symptoms and the impact is only felt in the long term. Worms included in the Soil Transmitted Helminths (STH) group can spread through the soil and include Ascaris lumbricoides, Trichuris trichiura, hookworms (Necator americanus and Ancylostoma duodenale), and Strongyloides stercoralis. This worm infection can cause malnutrition, impaired child growth, decreased cognitive abilities, iron deficiency anemia, and reduced learning performance. One indicator of worm infection is an increase in eosinophil levels, which are part of the body's immune system. This study aims to analyze the relationship between Ascaris lumbricoides infection and the number of eosinophils in stunted children in Noelbaki Village, Kupang Regency, East Nusa Tenggara. This study used an analytical observational design with a case-control study approach, involving stunted children as subjects. The results showed the prevalence of Ascaris lumbricoides eggs of 51.3%, and an increase in abnormal eosinophils of 87.5% in cases of infection. Statistical tests revealed a significant relationship between A. lumbricoides infection and eosinophil count (p = 0.000). However, this study did not consider the possibility of allergy as a factor in increasing eosinophils.

In the Kutai Basin area, seasonal changes such as high rainfall can significantly increase groundwater content, so that the effect of water content on the shear strength of claystone, increasing water content in rocks tends to decrease shear strength. Water in the pores or fractures can increase pore water pressure and reduce effective normal stress. Shear strength is one of the most important mechanical parameters used to assess soil and rock stability, this parameter is very important in slope stability analysis, foundation planning, and various civil engineering and mining applications. Therefore, this study was conducted to determine whether the water content in rocks can affect the strength of rocks in receiving shear forces. The method used in this study is more quantitative and specific to the effect of water content on the shear strength of claystone in this area. Increasing water content in rocks tends to reduce shear strength. This study was conducted by taking claystone samples from several locations in the Kutai Basin. Data collection in the form of primary data and secondary data for testing physical properties and testing mechanical properties, in testing physical properties, the water content value will be taken as supporting data which is one of the factors that affect rock strength, in testing mechanical properties, claystone shear strength data will be taken. From the results of the physical properties test calculations, the air content in each Formation is obtained, namely, in the Kampungbaru Formation the minimum air content value is 15.54% and the maximum is 20.17%, in the Balikpapan Formation the minimum air content value is 10.21% and the maximum is 12,88%, in the Palaubalang Formation the minimum air content value is 10.49% and the maximum is 22.87%. The results of the strength of the claystone in receiving shear forces in the Kutai Basin are the Muara Jawa location 0.486MPa, Tanah Datar location 0.500 MPa, Sanga-sanga location 0.333 MPa, Muara Badak location 0.269, Air Putih location 0.711MPa, Mugirejo location 0.021 MPa and Lempake location 0.092 MPa.

Disposal area is an area at an open pit mine that is used as a place to store or dispose of worthless materials. Disposal must also follow the specified safety factor standards, if the disposal design is not safe after being analyzed by a geotechnical engineer, the design must be redesigned to achieve the desired safety factor value. One way to increase the fk value is to make a Counterweight plan in making disposal. Where Counterweight is a fill material that is made with special treatment so that the soil bearing capacity increases which functions to withstand the load on it. Landslides on disposal slopes are one of the serious problems faced in mining activities, especially in areas with vulnerable geological and topographic conditions. PT Jembayan Muarabara, which operates in Marangkayu District, Kutai Kartanegara Regency, East Kalimantan Province, is no exception to this challenge. The A–A’ cross section shows a safety factor value of 1.118 in saturated conditions, which indicates that the slope is at a stable limit and needs to be improved through engineering such as adding counterweights. The B–B’ cross-section has a safety factor value of 2.332, which is included in the safe category and has met the provisions of the ESDM Ministerial Decree No. 1827 K/30/MEM/2018. The C-C’ cross-section has a safety factor value of 1.511, which is included in the safe category and has met the provisions of the ESDM Ministerial Decree No. 1827 K/30/MEM/2018.

This study discusses the impact of plastic waste imports from the Netherlands on environmental security in Indonesia. The practice of cross-border waste trade has become a sensitive issue in international relations, especially when developing countries such as Indonesia receive an abundance of waste from developed countries. This study uses a descriptive qualitative approach with data collection techniques through documentation and literature studies. The analysis focuses on regulations, dynamics of the recycling industry, and the ecological impact of incoming waste. The results show that most of the imported plastic waste cannot be processed safely and contains hazardous contaminants such as microplastics and heavy metals. This waste pollutes the soil, rivers, and seas, and enters the food chain through marine fish consumed by the community, thus threatening food security and public health. The state's response, although it has included re-export steps and policy revisions, is still weak in terms of supervision and law enforcement. In conclusion, plastic waste imports are a form of non-traditional threat to Indonesia's environmental security that requires stronger structural, diplomatic, and institutional responses.

The increasing demand for sustainable agricultural practices has led to the adoption of hydroponics, a method of growing plants in nutrient-rich solutions without soil. This method is particularly effective in controlled environments where resource efficiency is paramount. However, the success of hydroponic systems depends heavily on precise nutrient management, especially for micro-nutrients, which are crucial for plant health and productivity. Traditional methods of nutrient monitoring are often labor-intensive and lack the real-time responsiveness needed for optimal nutrient control. This study addresses the challenge of real-time nutrient management in hydroponic systems by developing a miniature sensor system integrated with Internet of Things (IoT) technology. The proposed system is designed to detect micro-nutrient concentrations accurately and transmit data in real-time to a cloud platform for continuous monitoring and automated control. Advanced algorithms are employed for data processing and calibration, ensuring high accuracy in detecting micro-nutrient levels. The system was tested in a controlled hydroponic environment, where it demonstrated high accuracy with minimal error margins, validated by a consistently low Mean Absolute Error (MAE). The integration of IoT allowed for seamless data transmission and real-time analysis, enabling immediate adjustments to nutrient levels as needed. This research contributes to the advancement of precision agriculture by providing an effective solution for real-time nutrient management in hydroponic systems, potentially improving crop yields and resource efficiency.