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Milkwood bark (Alstonia scholaris (L.) R. Br.) is one of the medicinal plants of the genus Alstonia. This plant is traditionally used by the community as a medicine for diarrhea, diabetes, malaria, hemorrhoids, and antihypertensives. This plant contains secondary metabolites that have the potential as antibacterial such as alkaloids, flavonoids, saponins and tannins. The purpose of this study was to determine the inhibition of antibacterial activity and the most effective concentration in inhibiting Staphylococcus aureus and Escherichia coli. The sample used in this study was milkwood bark, the sample was extracted by maceration method using 96% ethanol as solvent. The antibacterial testing method used in this study was disc diffusion. The study used a completely randomized design with 9 treatments, namely 1000 ppm, 750 ppm, 500 ppm, 250 ppm, 100 ppm, 50 ppm, 10 ppm, Ciprofloxacin (positive control), sterile distilled water (negative control). The results of the antibacterial activity test at a concentration of 500 ppm showed that milkwood bark extract could inhibit the growth of S. aureus by 8.22 mm and at a concentration of 250 ppm showed that milkwood bark extract could inhibit the growth of E. coli by 8.75 mm. From the test results, it can be concluded that milkwood bark (A. scholaris (L.) R. Br.) has antibacterial activity that has moderate potential in inhibiting S. aureus and E. coli.

The presence of heavy metals in waste is one of the variables that can pollute and damage the environment. Lead is one of the chemical contents that can be found in hospital liquid waste. Hospital liquid waste comes from work unit processes throughout the hospital environment which contains dangerous chemicals so it needs to be processed before being discharged into the environment. Research has been carried out using the coagulation-flocculation method using sugar palm seeds as a biocoagulant. The aim of this research is to find out how the palm seed coagulant mass influences in reducing lead (Pb) levels. hospital wastewater with the addition of variations in coagulant mass, namely 0.3%, 0.4%, 0.5%, 0.6% and 0.7%. From the filtrate resulting from coagulation-flocculation which was then analyzed based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number P.68 of 2016 concerning Domestic Wastewater Quality Standards, from the results of this research it is known that sugar palm seeds as a biocoagulant are able to reduce the most optimal PB concentration when the coagulant concentration is added to 0.6%.

This project aims to design and develop a prototype system based on gesture sensors to monitor visitors and smoke sensors to detect the presence of smoke in designated smoking rooms. The system is designed to enhance comfort, safety, and operational efficiency in multipurpose buildings. Utilizing the Arduino Uno microcontroller, the device is equipped with various components, such as a gesture sensor to detect visitor movements entering and exiting the building, enabling visitor monitoring for resource allocation. Meanwhile, the smoke sensor is designed to identify and monitor smoke concentration in the smoking room to prevent the spread of smoke to other areas.The device also includes additional features, such as an automatic exhaust fan and an LCD display for process monitoring. Test results show that the developed prototype has a high accuracy rate in detecting visitor gestures and can reliably and quickly detect the presence of smoke. This system provides an innovative solution to support smarter, safer, and more eco-friendly management of multipurpose buildings. This research is expected to serve as a foundation for further advancements in the application of sensor technology in public facilities.

The healing process of a tooth socket after extraction involves various stages, including the proliferation of fibroblasts that play a role in the formation of new tissue. Natural ingredients have long been used in accelerating wound healing, but their effectiveness in increasing the number of fibroblast cells still needs to be studied further. To determine the effectiveness of natural ingredients in increasing the number of fibroblast cells in the tooth socket of Wistar rats after tooth extraction. Methods: This is a literature review that collects and analyzes scientific articles from various databases such as PubMed, Google Scholar, DOAJ, Garuda Portal, and CrossRef. The selected articles met the predetermined inclusion criteria, including studies conducted on Wistar rats and using natural ingredients as interventions. Red ginger extract at 10% concentration was found to be the most effective ingredient in increasing the number of fibroblasts and accelerating wound healing. Red ginger extract (Zingiber officinale var. rubrum) is the most effective natural ingredient in increasing the number of fibroblast cells in the tooth socket of Wistar rats after tooth extraction.

Soursop leaves contain active compounds annonaceous acetogenins which are known to have cytotoxic activity against cancer cells. This study aims to evaluate the effect of soursop leaf methanol extract (EMDS) on the viability and growth inhibition of PC3 prostate cancer cells. The research method used was an in vitro experiment with subjects in the form of PC3 cell lines divided into five groups, namely the cell control group, the treatment group with EMDS at concentrations of 6.25; 12.5; and 25 mg/mL, and the group given doxorubicin as a positive control. Cell viability was analyzed using the MTT assay method after incubation for 0 and 24 hours, and cell morphology was observed. Data analysis was carried out using the ANOVA test. The results showed that the EMDS group with concentrations of 6.25 and 12.5 µg/mL experienced a decrease in OD values, although statistically there was no significant difference. The concentration of 12.5 µg/mL had the highest inhibitory effect on cell viability with an OD value of 0.94. Observation of cell morphology indicates the presence of cytotoxic effects. Conclusion: methanol extract of soursop leaves has potential as an anticancer agent against PC3 prostate cancer cells, although the inhibitory effect is relatively small.

Stres academic impact negative on performance academic , welfare physical and psychological students ( Marfuah , 2021). Symptoms frequent stress​ experienced by students including loss​ energy , pressure blood increased , atmosphere heart stressed , troubled concentration , impatience and nervousness . Students who experience stress tend own poor motivation , lack of productive , less feel safe at school , and more prone to to crime social , such as abuse drugs and violence . Therefore that , is needed a skills For increase ability students​​ in overcome stress academics faced . Previously​ has done Study Regarding the picture of stress in students at school this , and obtained results that more from half students who experience stress , namely as many as 45 people (56.25%). Activities This community service Already held on January 23 , 2025 at Madrasah Aliyah "B' in Mariana district Banyuasin with amount student as many as 80 people in all become target Community service . Students collected in One room namely in the school hall . Activity methods devotion the community used is lecture interactive , discussion ask answer , leaflet distribution and demonstration . The purpose of Devotion public This that is For increase knowledge students and share method stress management . So that activity This beneficial as effort reduce the occurrence stress .

The maritime industry plays a critical role in global trade but faces growing pressure to integrate environmental sustainability into its operations. This research analyzes the industry using the Structure-Conduct-Performance (SCP) framework to understand the relationship between market structure, firm behavior, and both economic and environmental performance. The study provides original value by extending the traditional SCP model to include environmental sustainability, addressing a critical gap in previous research. Key research questions include how market concentration, regulatory compliance, corporate environmental responsibility (CER), and technological innovation affect both profitability and sustainability. Using qualitative data from industry professionals and maritime educators, the analysis highlights that proactive regulatory compliance and high CER commitment drive superior economic and environmental outcomes. Firms that invest in green technologies enjoy enhanced performance, while those prioritizing short-term profits struggle with long-term competitiveness. The results offer practical insights for policymakers and industry leaders, emphasizing the need for inclusive market structures and stronger regulatory frameworks to support sustainability across the sector.

Vegetable ingredients are natural sources of active compounds that have the potential to be used as control agents for pathogenic microorganisms in various fields, including health and agriculture. This study aims to evaluate the synergistic effect between aloe vera (Aloe vera L.) and bandotan (Ageratum conyzoides L.) extracts on inhibiting the growth of pathogenic bacteria in different media. Aloe vera extract is obtained using the infundation method, while bandotan extract is obtained using the maceration technique. The concentrations tested were 30%, 45%, and 60% for each extract, as well as a combination of both. Testing was carried out on two main applications: as an antiseptic hand sanitizer by testing germ colonies using Plate Count Agar (PCA), and as a bacteria control Erwinia carotovora, the cause of carrot tuber rot, using the Path Ways Analysis test. The results showed that the combination of aloe vera and bandotan extracts had more significant inhibitory effectiveness than single extracts in both applications. A combination concentration of 60% gave the best results with a reduction in bacterial colonies of up to 90%. The mechanism of action of active compounds such as flavonoids, phenolics and saponins in this vegetable extract plays an important role in damaging bacterial cell membranes and inhibiting the metabolism of microorganisms. This research confirms the potential of using local plant materials as an environmentally friendly and economical solution for controlling pathogenic bacteria in the health and agricultural sectors.

Microplastic pollution, particularly from textile waste, has become a significant environmental concern, especially in urban runoff systems. These pollutants pose a considerable threat to water quality, aquatic life, and human health. Traditional wastewater treatment methods often fall short in addressing the complexities of microplastic contamination. This research explores the integration of advanced biodegradable polymer coatings with solar-powered textile waste treatment to reduce microplastic pollution in urban runoff systems. Biodegradable polymers, such as polylactic acid (PLA) and polyhydroxyalkanoates (PHA), are highlighted for their potential to efficiently filter microplastics while providing an eco-friendly alternative to conventional filtration technologies. By combining these materials with a small solar-powered unit, the prototype enables an off-grid, low-energy solution to treat textile wastewater in urban environments. The study includes testing the prototype in simulated urban runoff conditions with varying concentrations of microplastics, evaluating key performance indicators such as microplastic removal efficiency, energy consumption, and operational sustainability. Results demonstrate a significant reduction in microplastic concentration, indicating the effectiveness of biodegradable polymer coatings and solar-powered systems in treating urban runoff. The discussion addresses the feasibility of using local biodegradable materials, performance in real-world urban environments, and operational challenges such as maintenance and scalability. This innovative approach is compared with existing microplastic filtration methods, such as membrane filtration and adsorption, highlighting its advantages in terms of sustainability and cost-effectiveness. The findings suggest that this integrated system could offer a viable, low-cost solution for addressing microplastic pollution in urban drainage systems, with potential for widespread urban implementation.

This research aims to optimize the operating conditions of nickel-chrome electroplating to increase the corrosion resistance of L profile steel materials. Nickel-chrome electroplating is a metal coating method used to protect steel surfaces from corrosion and improve the aesthetic appearance. The electroplating process involves several variables such as solution concentration, temperature, current density, and plating time. In this research, various operating conditions were optimized to obtain maximum corrosion resistance. The experimental method was carried out with variations of these parameters and the results were evaluated using corrosion tests and microscopic analysis. The research results show that certain operating conditions produce a protective layer that is more effective in preventing corrosion on L profile steel. This optimization is expected to make a significant contribution in industrial applications that require high corrosion protection.

Breadfruit (Artocarpus altilis) is a kind of consumable plant, generally peoples will process the fruit and discharge the peel. Effervescent granule is a practice of powder preparation. This study aim to create the effervescent granulation preparation to making the peel if breadfruit will easier to consumen with extract concentrations : F1 (5%), F2 (10%), and F3 (15%) and determine the characteristics of the resulting preparation. Making effervescent granules using the alkaline granulation method. Then the resulting preparation is evaluated by testing, including organoleptic test, pH, flow rate, angle of repose, dissolve time, water content, granule size distribution, and froth height. Breadfruit peel extract can be formulated into effervescent granule preparations. Effervescent granules of F1, F2, and F3 from breadfruit peel extract produce a brownish-white powder, characteristic of the extract. All of the formulas have qualified pH, water content, rest angle, dissolve time, and granule size. Flow velocity F1 7.99 g/sec and F2 7.21 g/sec, including flow velocity "good,” while F3 includes “poorly soluble’ 2.68 g/sec. However, the formulas do not meet the foam height requirements in the market with a foam height of 3 cm, where FI is 0.9 cm, F2 is 0.93 cm, and F3 is 0.96 cm.    

Cocoa (Theobroma cacao L.) is a plantation crop that produces cocoa shell waste, and is an alternative as compost fertilizer. Water spinach is a type of vegetable that is widely consumed, but its productivity has decreased. It is necessary to increase plant production by providing additional nutrients by using cocoa shell waste as fertilizer. This research aims to determine the effect of cocoa shell waste compost on the growth of land kale plants. Research methods, namely (RAK); 5 treatments and 4 replications consisting of; P0(control), P1(100gr/polybag), P2(200gr/polybag), P3(300gr/polybag), and P4(400gr/polybag. Parameters observed for growth included; plant stem height, number of leaves and wet weight, then The data was tested using (ANOVA) and continued with the test (BNT) with a level of 5%. The results of the ANOVA test showed that the height growth of land kale plants in the treatment had a very significant effect on the 200g dose of fertilizer where Fcount>Ftable (11.7>3.11) while the group did not have a significant effect where Fcount <Ftable (0.39 < 3.11). significant where Fcount < Ftable (1.83 < 3.11) as well as in groups where Fcount < Ftable (2.1 < 3.11), and the highest wet weight was in treatment P2, namely 5 gr. Providing cocoa shell compost fertilizer at a concentration of 200 gr gave the best results in all observed parameters.

A peel-off facial mask is a cosmetic preparation in the form of a gel, which is applied to the skin of the face and left to dry so that a transparent film is formed that is elastic and easy to remove. One of the factors that influences the characteristics of peel-off gel face masks is the gel-forming ingredients which have different characteristic properties. The aim of this research was to determine the effectiveness of loaded red bracts of Kepok banana flowers (Musa paradisiaca L.) which were formulated into peel-off face maks with varying gelling agent concentrations. This research was carried out experimentally in the laboratory, including: taking plant samples using purposive sampling, sample processing and plant determination, making extracts using ultrasonic waves, making peel-off face mask preparations with gelling agent concentrations, physical evaluation of the preparations and stability test.  The research results showed that the physical preparation of the peel-off face mask loaded with red bracts of Kepok banana flowers (Musa paradisiaca L.) was brownish red in color, odorless, gel texture, transparent, sticky, thick, non-synergic and homogeneous. The stability results show that there is a change in pH before and after test.

Background: Tofu is a food which has high protein content but it is quickly damaged, so natural ingredients are needed to extend the shelf life and minimize microbial growth. Objective: The study aims to analyze the total microbial and tofu storage period by immersing turmeric extract. The research methods were in the form of survey in tofu factory, purchasing tofu, making turmeric extract, tofu storage, microbial total test with Total Plate Count and the tofu storage period were observed starting from the third, fourth and fifth days every 24 hours. The parameters observed were total microbes and shelf life of tofu. The study used a simple randomized design (RAS) with 4 treatments, 2 experimental units and 2 repetitions. The data obtained were analyzed descriptively and presented in tabular form and carried out documentation. Results: The results showed that tofu with the highest concentration of turmeric extract which was 15%, had a total microbial of at least 7.2 x 1010 CFU / gram and the longest shelf life was three days of storage. Conclusion: The conclusions are the higher concentration of turmeric extract is given; the raising level of total microbes will be lowest and make the shelf life of tofu longer.

This study aims to describe and reveal data about the diagnostic approach in assessing learning difficulties in junior high school students. This research uses a qualitative research approach with a library research approach obtained from books, literature, articles, journals, and sites on the internet that are related to the research conducted. The results showed that the diagnostic approach has proven effective in identifying and dealing with learning difficulties of junior high school students. The form of learning difficulties in junior high school students is related to changes in their cognitive and emotional development. the form of difficulty that is often found is difficulty in exact lessons (Mathematics and Science). The causes of students having difficulty learning science are interest, motivation, concentration, learning habits and intelligence. To find out learning difficulties, teachers can conduct learning diagnostics through: first, student identification. second, conduct a diagnosis test with the most consecutive instruments using observation guides, written tests, interview guides and questionnaires and can conduct diagnostic investigations of learning difficulties by observation, interviews (interviews), diagnosis tests (including giving instructions, conducting tests, assessing test results, following up by adding remedial programs). third, provide assistance with tutoring.

Agricultural companies play an important role in the Indonesian economy in utilizing agricultural land, which can be seen from the increase in data from the Department of Agriculture each year. Agricultural companies have assets in the form of animals or living plants that undergo biological transformation in their management activities. These assets in the form of animals and living plants are referred to as biological assets. Disclosure of information on biological assets has been regulated in PSAK 241 Agriculture, of course, has an impact on the presentation of financial statements of agricultural companies in Indonesia. This study aims to examine the effect of biological asset intensity, growth, and ownership concentration on biological asset disclosure. This study is a quantitative study with hypothesis testing. The type of data used is quantitative data in the form of financial statements of agricultural companies listed on the Indonesia Stock Exchange. The sample used in this study was 27 agricultural companies selected using purposive sampling techniques and data analysis techniques using multiple linear regression. The results of the study indicate that biological asset intensity, growth, and ownership concentration do not affect biological asset disclosure.  

Children with Special Needs (CSN) have unique potential that requires special approaches to support their development. This study aims to analyze the role of painting activities in the development of fine motor skills, concentration, emotional regulation, and self-expression of CSN at the Integrated Center Prof. Dr. Soeharso Surakarta. Using a descriptive-qualitative method, data were collected through interviews, observations, and documentation. Data analysis was carried out using Miles and Huberman's interactive techniques, including data reduction, data presentation, and conclusion drawing. The results showed that painting activities effectively train fine motor skills through the use of brushes, enhance concentration and emotional regulation abilities, and provide a platform for self-expression for CSN. Moreover, painting helps boost children’s self-confidence through the appreciation of their artwork. These findings emphasize the importance of painting as part of an educational and therapeutic approach to support CSN development. Its implication is that painting can be more broadly implemented in inclusive educational activities to strengthen children’s abilities in various aspects of development.

Hemoglobin (Hb) is a protein that functions to transport oxygen and carbon dioxide in the blood. Anemia, caused by iron deficiency, can affect physical health and academic performance, particularly in adolescents and students. Factors such as diet, habits, and socio-economic status contribute to the incidence of anemia. Anemia can lead to fatigue, reduced concentration, and decreased physical endurance. Therefore, improving nutritional status is crucial to support health and academic achievement.

The study entitled “Cream Formulation of Methanol Extract of Tapak Kuda (Ipomoea pes-caprae (L.) R. Br.) Leaves) As an anti-inflammatory in male white mice (Mus musculus)” using laboratory experimental methods with posttest control group design, data analysis using SPSS 25.0 with One Way ANOVA test and Duncan test. The percentage of extract yield obtained was 3.12%, phytochemical screening test showed the presence of secondary metabolite compounds alkaloids, terpenoids, flavonoids, saponins, tannins and steroids. Cream preparation of methanol extract of Tapak Kuda leaves at concentrations of 2.5%, 5% and 10% showed anti-inflammatory activity and the maximum dose to reduce edema diameter was 10% concentration with a percentage inhibition of 87.97%. Data analysis with One Way ANOVA test with a significance value ≤ 0.05 which indicates the presence of anti-inflammatory activity in Ipomoea pes-caprae tread leaf methanol extract cream.

Fish is one type of aquatic product widely used by the community because of its advantages as a food ingredient, including a source of important nutrients such as protein, vitamins, fat, and minerals. Fish is often found in cans. Canned packaging contains the heavy metals lead (Pb), cadmium (Cd), and zinc (Zn), which can be released into food due to the long storage period. This study aims to identify and analyze heavy metals Pb, Cd, and Zn levels in canned tuna with an expiration date of less than 1 year. Samples of canned tuna came from five different brands. Qualitative analysis used color reagents, while quantitative research used an atomic absorption spectrophotometer (AAS). The qualitative study results showed that three samples of tuna contained heavy metals. Samples B and C were positive for Pb metal, while samples A and B were positive for Zn metal. The concentration of Pb metal was measured in sample B at 117.9 mg/Kg and in sample C at -0.0147 mg/Kg. The concentration of Zn metal in sample A was -0.0048 mg/Kg, and in sample B, it was -0.147 mg/Kg.