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Along with increasingly rapid technological developments in our country, the number of existing industries is increasing. Apart from producing useful products, this industry also produces waste. The waste produced contains a lot of heavy metals, one of which is the heavy metal lead. If the lead metal in the waste receives little treatment, this can cause pollution in the environment, even though this waste is present in small quantities, the lead condition is unstable and if it accumulates in the body, it can ultimately trigger cancer cells (carcinogenic) which can be dangerous for health. . In this research, adsorption of PB2+ ions was carried out on canned ground meat, where heavy metal contamination occurred in the ground meat. This research aims to determine the effectiveness of the absorption of heavy metals (Pb) contained in ground beef and their characteristics. The uptake of PB2+ ions in ground beef, measuring the concentration of PB2+ ions before and after receiving treatment, was carried out using an instrument, namely AAS, at a wavelength of 217nm. The research results showed that the effectiveness of ground beef in absorbing PB2+ ions in canned food was as high as brand a: 0.023; brand b: 0.009; brand c: 0.006

Cassava is a potential food ingredient that has quite good prospects in the fields of agribusiness and agroindustry. Cassava crackers are made from cassava which is processed into crackers, as well as being another alternative food that contains nutritional value. Based on data from the Ministry of Agriculture, Forestry and Fisheries of Timor-Leste in 2009-2010, cassava production reached 47,845 tons. However, cassava production has not been utilized optimally by the people of Timor-Leste as a food ingredient for the nutritional value food industry. therefore, it needs to be developed. The aim of this research is to determine the effect of adding soybean concentration to each treatment and to find out which treatment is best for each parameter used in the test. The method used in this research was a Completely Randomized Design (RAL) with 4 treatments, namely 0% soybean concentration compared to 1 kg of cassava, 10% compared to 1 kg of cassava, 20% compared to 1 kg of cassava, 30% compared to 1 kg of cassava. Each treatment was repeated 3 times. The resulting data will be analyzed using analysis of variance and if necessary, will be presented with a follow-up test of the least significant difference (BNT) at the 5% level.The results of the variance statistical test show that the addition of soybean concentration has a significant effect on the color, taste, aroma and texture of making cassava crackers. This research shows that the best results are 10% soybean concentration in color, taste, aroma and texture.

Sensory Integration Therapy is an approach that focuses on sensory stimulation to improve sensory processing and adaptive responses in individuals with sensory disorders, one of which is children with autism. Sensory integration therapy makes it easier for autistic children to communicate to be better understood and to create good social interactions. Therefore, the Yasmin Autism Therapy Center carries out Sensory Integration Therapy to improve social interaction in autistic children. This research aims to determine the application of sensory integration therapy at the Yasmin Autism Therapy Center to improve social interaction in autistic children and determine the obstacles in implementing sensory integration therapy. Data collection techniques include documentation, observation and interviews. The results of the research show that the stages of Sensory Integration Therapy at the Yasmin Autism Therapy Center are providing simple instructions, a series of sequential activities and honing concentration, consistency and endurance in activities through play. Supporting factors for sensory therapy activities include good collaboration between therapists and parents. Meanwhile, the obstacles to children's communication are difficult factors, limited therapy tools, and limited therapy time.

The aim of this research is to explore theories of child sociological development, children's emotional abilities, factors that influence children's social-emotional development. This research is qualitative research with the type of library research. The findings from this research can be concluded: first, the characteristics of early childhood are as follows: (1) children have great curiosity, (2) children are unique, (3) children are rich in fantasy or imagination, (4) children have attitudes egocentric, (5) children have short concentration power. Second, there are four stages of children's social emotional development, namely: (1) development stage I from infancy to 2 years of age. The first stage is the baby's stage of learning about hope, (2) the second stage of development from 18 months to 4 years old. At this stage children will learn to face the conflict of independence vs shame, (3) stage III development from the age of 3 years to 6 years. In the third stage, children will learn to deal with emotions when the meaning is accepted or rejected, (4) stage IV development from the age of 5 and a half years to 12 years. This stage develops in school-age children. Here, children will learn how to compete in groups, developing 3 social skills. Third, social development factors can be influenced by: (1) family, (2) maturity, (3) socio-economic status, (4) education, (5) mental capacity: emotions and intelligence.

Oil plants (Cocos nucifera L.) is a versatile plant or plants that have a steeper economic value of all parts of the coconut tree can be the benefits for human needs. False coconut oil is a processed product made from young coconut meat coconut pudding manufacture in modern done through the stages are quite complicated and costly, so that only done by large industries. affect factors on fermentation needs to be optimized to result in qualified young coconut pudding the purpose of this study was to determine influence concentration of sugar and agar-agar to quality coconut pudding in addition to knowing the most permanent treatment that can produce the highest quality coconut pudding the hypothesis of this study. Presumably the influence concentration of sugar and agar-agar to the quality of pudding coconut. And affect the level of consumer preferences. The method used is an experimental research by using a completely randomized design (RAL), which consists of two factors, namely: Concentrations of sugar and gelatin with 300 gram 400 gram 500 gram while the factors gelatin with composition 7 g, 14 g, 21 g. While the variable that is used to measure the level of preference is the color flavor aroma and texture. Variables were measured in this study is using composition test by testing the level of preference are: color, taste, aroma, and texture. Using a scoring scale test method (numbering) commonly in use No. 1-5 and panelists in use totaled 15 0rang representing consumers the results of composition test of the level of preference of color, flavor, aroma, and texture of pudding meat fruit coconut based assessment best treatment that is adjusted from public view representing 15 people panelists then be in concluded that treatment in consider best is in treatment ( GPI Aa2).

Fractal structures play a crucial role in improving material properties due to their unique self-similar geometries. These geometrical patterns exhibit repetition at multiple scales, which can enhance surface area, strength, and other mechanical characteristics. This study investigates the influence of fractal patterns on the crystal growth and mechanical performance of metallic materials, focusing on strength, toughness, and hardness. Using a combination of computer simulations and laboratory experiments, the research models metal crystal formation under controlled conditions, where fractal characteristics are introduced through diffusion-limited aggregation (DLA) and electrodeposition methods. The findings reveal that embedding fractal patterns into the crystal growth process can increase material strength by approximately 20% compared to conventionally structured metals. This improvement is attributed to the efficient stress distribution within the fractal geometry, which minimizes stress concentration points and enhances resistance to fracture. Additionally, materials with fractal-based microstructures exhibit better toughness and deformation resistance, improving durability under mechanical load. The study also examines the underlying mechanisms of these effects, emphasizing the role of fractal-induced microstructural control in optimizing material integrity. These results demonstrate the significant potential of fractal-based material design in engineering stronger, lighter, and more flexible metallic components. The research contributes to the broader understanding of how geometric complexity can be harnessed to develop advanced materials for applications in construction, automotive manufacturing, and flexible electronics, thereby supporting the development of next-generation high-performance materials.

Anemia is a condition where the number of red blood cells or the concentration of hemoglobin in them is lower than normal. This disease mainly affects women and children. Anemia is classified into 3 parts based on the Hb value, namely mild, moderate and severe. Of these three categories, anemia is most prevalent in adolescents and pregnant women with productive age of 15-49 years in 124 countries included in WHO. The method used in conducting community service by using a preliminary survey conducted at Datuk Batu Hampar High School Pekanbaru, then conducted interviews with female students about their knowledge of anemia and continued with Hemoglobin checks and counseling about anemia. From the Hemoglobin examination on 30 female students, 5 were found with symptoms of anemia.

Ultrafiltration membrane is one of wastewater treatment technologies, but membranes have limitations such as the occurrence of the phenomenon of concentration polarization and fouling. The research objective of this study the effect of variations in transmembrane pressure against the rejection percentage COD, TSS, and the effect of variations in transmembrane pressure, concentration of washing of the efficiency and effectiveness of washing the membrane. The process of ultrafiltration membranes and membrane chemical washing wastewater laundry do with variations in pressure of 1 bar, 2 bar, and 3 bar. Variation of chemical cleaning agent concentration of 1%, 1.5% and 2%, rinsing with distilled water for 30 minutes, filtering wastewater laundry for 120 minutes, and washing using chemical cleaning agent (NaOH) for 30 minutes. Highest rejection percentage for COD parameter 86.6% and 85.7% for TSS parameters in transmembrane pressure of 3 bar. The highest washing efficiency of the value of Flux Recovery (FR) gained 81.9%, and the value of resistance of Removal (RR) gained 82.59% with a concentration of 2% in the transmembrane pressure of 3 bar. The highest leaching effectiveness obtained at 50.21% with a concentration of 2% and a transmembrane pressure of 3 bar.

Fish nuggets are a food that is quite popular with people because they contain high nutrition. Addition of black ear mushrooms to gray tuna nuggets to increase nutritional value and crude fiber content and acceptability. This study aims to determine the effect of the correct concentration of black ear fungus on chemical and organoleptic properties. This research was conducted using a completely randomized design method (CRD) with 4 treatments at the concentration of addition of black ear fungus 0% (K0) as a control, 10% (K1), 20% (K2), 30% (K3) of 100 g tuna. gray with 3 repetitions. The results of the chemical properties research showed that the water content ranged from 42.50% -51.00%. The best treatment was obtained (K3) of 51.00% fulfilled the SNI with a maximum of 60%, ash content was 2.63% -2.98%. K1) of 2.63% does not meet SNI with a maximum of 2.5%, protein content of 13.76% -15.31%, the best treatment is obtained (K0) of 15.31% meets SNI at least 5%, fat content is 13.22 % -15.25% obtained the best treatment (K3) of 13.22% fulfilling SNI with a maximum of 15%, crude fiber 0.22% -0.70% obtained the best treatment (K3) of 0.70%. The results of the organoleptic analysis regarding the taste of fish nuggets were 5.04-5.64 on average, the best treatment was obtained (K1) 5.64 (likes), the aroma was 4.68-5.32, the best treatment was obtained (K1) 5.32 ( rather like), texture 5.00-5.32 obtained the best treatment (K1) 5.32 (rather like), color 4.92-5.36 obtained the best treatment (K1) 5.36 (rather like).  

Introduction: Itch Leaves (Laportea decumana) is a medicinal plant that grows widely in eastern Indonesia, especially Maluku. This plant usually grows in humid areas, surrounded by or adjacent to sago trees, and near rivers. Local people usually use the leaves to treat various complaints such as pain, fatigue and joint and muscle pain, or as a muscle relaxant. Objective: of this research is to determine the secondary metabolite content of the ethanol extract of itchy leaves (Laportea decumana) and test the antibacterial activity of the ethanol extract of itchy leaves (Laportea decumana) against the growth of Staphylococcus aureus bacteria. Method: Used in this research was the Agar diffusion method with itchy leaf test material using concentrations of 60%, 65%, 70% and 75%, chloramphenicol as a positive control and distilled water as a negative control. Results: research shows that itchy leaf extract (Laportea decumana) at a concentration of 60% has an inhibition zone diameter of 15.5 mm, at a concentration of 65% the diameter of the inhibition zone is 20.5 mm, at a concentration of 70% it has 25 mm, while at a concentration of 75% it has The highest area of inhibition against Staphylococcus aureus is 29 mm. Itchy leaf extract (Laportea decumana) at a concentration of 75% has a strong inhibitory level against Staphylococcus aureus bacteria, namely with an inhibitory zone diameter of 29 mm. Conclusion: There are secondary metabolite compounds in the ethanol extract of itchy leaves (Laportea decumana) and antibacterial activity against the growth of Staphylococcus aureus bacteria.

This research aims to analyze the impact of corporate governance factors, such as ownership concentration, board size, and the presence of female directors, on audit quality. The research methodology involves secondary data analysis from the financial reports and audit reports of listed companies. The research findings indicate that ownership concentration and board size have a significant impact on audit quality, while the presence of female directors does not show a significant influence on audit quality. The results of this study are expected to provide a deep insight into the relationship between corporate governance practices and the level of audit quality provided by auditors. The practical implications of these findings can serve as a guide for practitioners, regulators, and other stakeholders in enhancing corporate governance and audit quality in the current business environment.  

The skin is the widest organ that makes up the human body which is the outermost and covers the entire surface of the body. The outermost location causes the skin to receive stimulation for the first time such as touch stimulation, pain, or bad influences from outside. This causes the skin to stretch due to disease. One of the most common skin diseases suffered by people is acne. Acne occurs generally triggered by the bacterium Propionibacterium acnes (gram positive bacteria). Effective acne treatment can use antibiotics, but inappropriate use of antibiotics can lead to resistance. Therefore it is necessary to have alternative therapies from plants that have the potential as antibacterial. One of the natural ingredients from plants that have antibacterial properties is mangosteen (Garcinia mangostana Linn.)This research was conducted using a descriptive experimental method with the aim of knowing the presence of antibacterial activity in cream preparations of ethanol extract of mangosteen rind (Garcinia mangostana Linn.) against Propionibacterium acnes bacteria as seen from the inhibition of bacteria with varying concentrations of 10%, 15% and 25% by using paper disc diffusion method and solid liquid dilution method. The positive control used clindamycin cream and the negative control used 1% DMSO. Analysis of the diameter of the inhibition data was carried out using the One Way ANOVA test. The preparation formulation that has the largest diameter in the diffusion test is F3 with a concentration of 25% with an average inhibition of 6.36 in the medium category.  The MIC and KBM values in the dilution method were at a concentration of 12.5%. The results of a normally distributed One Way ANOVA are measured with a value (P> 0.05). Mangosteen peel extract (Garcinia mangostana Linn.) has antibacterial activity against Propionibacterium acnes bacteria.    

Nanotechnology is currently growing rapidly due to its broad application in science and technology. Nanotechnology itself is a science based on nanoparticles, so a more environmentally friendly method is being developed, namely the "green synthesis" method using plant extracts as a bioreductor. Silver nanoparticles have been synthesized using extracts of bidara leaf as a reducing agent. The objective of this research was was to determine the synthesis of silver nanoparticles using bioreductors and their application as antibacterial agents using bidara leaf extract against Staphylococcus aureus bacteria. This research used the green synthesis method to produce silver nanoparticles. The bidara leaf extract used was divided into several concentrations, namely 1 mM, 2 mM, 3 mM and 4 mM. To characterize silver nanoparticles, UV-Vis and PSA spectrophotometers were used. Furthermore, the Kirby-Bauer method was used to test the antibacterial properties of silver nanoparticles against Staphylococcus aureus bacteria. The results of research that has been done show that the formation of silver nanoparticles is characterized by the emergence of maximum absorbance peaks in the wavelength range of 400-450 nm, while the PSA results at concentrations of 3 and 4µm showed nanoparticle sizes of 185 nm. Silver nanoparticles of bidara leaf extract with various concentrations of 1 mM, 2 mM, 3 mM and 4 mM have antibacterial activity that can inhibit the growth of Staphylococcus aureus bacteria with an average inhibition zone diameter of 13.0617 mm, 11.7333 mm, 9.05 mm and 13.19 mm. This shows that silver nanoparticles with bidara leaf extract have antibacterial properties.

Children with special needs are children who have physical, mental and social characteristics that are different from normal children. ADHD is a disorder in which you see symptoms of poor concentration, hyperactivity, and impulsivity, which can cause an imbalance in most life activities. Parents have control over many factors that can positively influence their child's symptoms. The role of parents in developing the character of children with ADHD (Attention Deficit Hyperactivity Disorder) aims to develop the character of children with ADHD in terms of the child's emotional and social aspects. Adjusting life as a parent who has a child with ADHD so that the child can grow and develop optimally according to his or her potential. The Role of Parenting Styles in Handling Hyperactive Children (ADHD) in SLB Pedagogia Surabaya. Research shows that the type of parenting given to children with special needs is carried out with a democratic parenting style, and balances the power of easy control in providing education to children in an appropriate way.  

The utilization of coal as a fossil fuel causes several ecological problems, as for the consequences of the coal combustion process, namely pollution and emissions. Combustion of high sulfur coal produces sulfur dioxide gas (SO2). This sulfur dioxide (SO2) will become H2SO4 (sulfuric acid) which can directly or indirectly disrupt human life, such as causing acid rain, causing tightness in the respiratory tract and causing corrosion and shortening the life of factory equipment. To reduce SO2 gas, a reduction in sulfur content is carried out before combustion which is called desulfurization. This research was conducted using the leaching method with variations in leaching agent and solution concentration. Leaching agents used in this study are NaOH and HCl. The coal to be desulfurized is coal from PT Anugerah Krida Utama with an initial total sulfur content of 4,05% adb. 10 grams of coal with a size of 0,212 mm was leached with 250 ml of chemical solution using a hot plate stirrer at 80˚C and 250 rpm for 1 hour. The results showed that the optimum condition for leaching agent NaOH occurred at a concentration of 8 M showing the initial total sulfur content of 4,05% adb decreased to 1,69% adb with a maximum percentage decrease of 58,27% and at leaching agent HCl the optimum condition occurred at a concentration of 1 M showing the initial total sulfur content of 4,05% adb decreased to 2,91% adb with a maximum percentage decrease of 28,14%.    

The behavioral and emotional development of hyperactive children causes children to experience problems concentrating in learning, because the disorders they experience cannot be controlled properly. Therefore, children experience difficulties when learning takes place and this has an impact on social relationships which influence their behavior when interacting with other people or their peers. So the researcher raised the problem in his research, namely the behavioral and emotional development of hyperactive children with special needs who experienced concentration problems in learning at the Raudhatul Athfal Al-Hidayah school. This research aims to determine developmental aspects of children's behavior and emotions as well as indicators related to hyperactivity and disturbances in concentration. This research uses a descriptive qualitative research method by collecting data through a process of observation, interviews and documentation. The results of this research show that the behavioral and emotional development of hyperactive children is all excessive behavior and actions seen when children express their emotions when they are happy, sad, angry, disappointed, anxious and afraid. Children's emotional development impacts children's behavior, such as being aggressive, running around, shouting, being rude, talking a lot, being nosy and endangering people around them. This can happen because there are many factors that underlie a child becoming a hyperactive child, namely genetics, slow development of the child's brain, parenting patterns, emotional intelligence and the influence of the surrounding environment.

Warehouse is an important part of a company. Warehousing activities must have a good storage system to support the smooth production process and warehousing activities. PT. XYZ is a manufacturing company in the field of paper production that uses 100% recycled paper as its raw material. PT. XYZ has many warehouses needed for production. Stock taking is an activity of physically counting the inventory of goods in the warehouse or production to determine the real or actual quantity owned by the company. Stock taking is important to carry out control, so that the company can monitor and know the assets it owns. By carrying out comprehensive stock taking activities, real stock reports will be obtained which will be used as material for consideration for further development. One of the problems that often occurs in spare part warehouses is a mismatch in the final balance of spare part components between the stock card and the inventory system which occurs continuously. This problem can cause errors in stock taking reports which can result in losses for the company. This research uses the fishbone diagram method. This diagram is often called a cause and effect diagram. This fishbone diagram is used to analyze and look for factors causing problems that have a significant impact on differences in inventory. Human, environmental, material and method factors are factors that cause differences in existing inventory. Human factors such as drowsiness and lack of concentration can also be caused by environmental factors such as lack of air circulation, causing the temperature in the spare parts warehouse to increase. The lack of discipline of spare parts warehouse officers also greatly influences the results of stock taking activities carried out

Security Guard Training and Training in Sukoharjo faces challenges in increasing the effectiveness of learning and concentration of participants. The activity "Ice Breaking as a Concentration for Security Guard Training Training in Sukoharjo" is proposed as an innovative approach to start training in a fresh and fun atmosphere with the aim of providing a brief overview of the importance of ice breaking in the context of security guard training in Sukoharjo as an effort to achieve optimal learning effectiveness. Ice breaking is seen as an essential first step to build relationships between participants, create a comfortable atmosphere, and increase participant motivation. The method for this service is in 3 stages starting from opening, content and closing and the population is security guards in Sukoharjo. The conclusion is that the implementation of ice breaking in security guard training in Sukoharjo is not just an opening step, but is a critical element in achieving training objectives by providing a strong foundation for effective and continuous learning.

This reasearch aimed to determine the condition of ceramic industry in Malang City and calculate the market structure of ceramic industry in detail by using market structure approach. This approach can be calculated by using market share, Hirchman Herfindahl Index (IHH), and CR4 (Concentration Ratio for Biggest Four). This study used quantitative descriptive analysis with the markets as the object of study. The result of the study showed that the market had the largest concentration ratio with 12.12% that led to the market structure of competition. The value for IHH was 0.05 that led to the perfect competition market because its value was between zero and one. Then, the value of CR4 was 0.36 that led to perfect competition market structure because its value was < 20%. It can be concluded that the degree of ceramic industry business in Malang City went to perfect competition market structure.

This research aims to increase insight into the field of industrial economics, both conceptually and in its application in the development of industrial economics in Indonesia. This research focuses on systems, technology and transactions. The research method uses qualitative methods and library research. The data collection technique is to record important information in carrying out data analysis by means of data reduction, data display and drawing conclusions to obtain conclusions. The results of this research show that the existence of homogeneous industrial concentration and industrial integration will lead to economic growth and can create a new industrial economy.