Soil is a nutrient for plants and they grow well and optimally. The nutrients needed by plants include macro elements and micro elements. So that plants can grow well. For this reason, we need a tool to check soil fertility levels from makeshift materials or simple items. The aim of Community Service (PKM) in the field of appropriate technology by KKM group 40 in Cikerai Village is to implement measuring soil fertility levels from simple items. The PKM method used is approach, direct introduction, and knowledge of soil fertility measuring tools. The results of this PKM were responded well by farmers in the Cikerai Village area even though at first they seemed confused, so this tool can be used in the future.

The digital revolution frontiers have rippled across society today – with various web content shared online for users as they seek to promote monetization and asset exchange, with clients constantly seeking improved alternatives at lowered costs to meet their value demands. From item upgrades to their replacement, businesses are poised with retention strategies to help curb the challenge of customer attrition. The birth of smartphones has proliferated feats such as mobility, ease of accessibility, and portability – which, in turn, have continued to ease their rise in adoption, exposing user device vulnerability as they are quite susceptible to phishing. With users classified as more susceptible than others due to online presence and personality traits, studies have sought to reveal lures/cues as exploited by adversaries to enhance phishing success and classify web content as genuine and malicious. Our study explores the tree-based Random Forest to effectively identify phishing cues via sentiment analysis on phishing website datasets as scrapped from user accounts on social network sites. The dataset is scrapped via Python Google Scrapper and divided into train/test subsets to effectively classify contents as genuine or malicious with data balancing and feature selection techniques. With Random Forest as the machine learning of choice, the result shows the ensemble yields a prediction accuracy of 97 percent with an F1-score of 98.19% that effectively correctly classified 2089 instances with 85 incorrectly classified instances for the test-dataset.

The development of Information Technology is now entering various sectors, including health, and is implemented in Bidadari Binjai Hospital. As a health institution that is committed to excellent service and quality, Bidadari Binjai Hospital needs to innovate technology. One health issue that requires attention is rubella, an airborne infectious disease that has the potential to cause serious disorders such as hearing loss, cataracts, speech delay, and heart failure in toddlers and children. The initial symptoms of rubella are often similar to other common diseases, so public understanding of these symptoms is very important for quick treatment. This research aims to develop an information technology-based system that is able to predict rubella using the backpropagation method. This method is expected to improve the accuracy of diagnosis and make it easier for people to recognize rubella symptoms early on. The proposed system aims to provide better diagnosis support at Bidadari Binjai Hospital, as well as increase public awareness and knowledge about rubella disease. From the research conducted, the results of the accuracy rate obtained when conducting a test program were selected according to the symptoms and the results obtained were rubella disease with a 100% accuracy rate.

The commitment of the Indonesia government to prioritize the development of tourism and aviation as the focus of regional economic growth is reflected in various strategic policies and programs. In line with this, Radin Inten II Lampung Airport always strives to improve facilities, especially in the departure terminal area. This study aims to understand the influence of departure terminal facilities on passenger satisfaction at Radin Inten II Airport Lampung. This research was conducted using a quantitative approach, where data was collected through questionnaires and literature studies. Instrument feasibility analysis using validity test, reliability test, data analysis using normality test, simple linear regression analysis, t-test and determination coefficient analysis (R2). The results of the study showed that departure terminal facilities had an effect on service user satisfaction at Radin Inten II Lampung Airport with a value of 0.51 or 51%, which meant that the independent variable (departure terminal facilities) affected the dependent variable (service user satisfaction) by 51% and the remaining 49% was influenced by other factors that were not in this study.

The cleanliness of the environment plays a crucial role in the welfare of the community. However, the plastic waste problem remains a serious challenge in Sungai Undan Village, Reteh District. This article examines the potential of ecobrick utilization as a solution for reducing plastic waste, focusing on the development of community-based waste management facilities. This program aims to educate the community about the importance of waste management through ecobrick methods and the creation of organic and inorganic waste bins, in order to create a cleaner and healthier environment. The results show that through ecobrick utilization and the provision of separate organic-inorganic waste bins, the community is able to contribute significantly to environmental cleanliness. Sungai Undan Village can thus serve as a model for sustainable waste management.

Ecoprint is one of the activities of making batik through the process of transferring color and shape to fabric through direct contact. Ecoprint training was chosen because it was based on the discovery that there were many natural resources that had not been utilized, which was one of the reasons for conducting ecoprint training. In supporting the village's creative economy by utilizing natural resources, ecoprint is one solution that can be implemented. Apart from being able to provide ecoprint training experience, it can be used as an example of a business that supports the village economy. This training uses material delivery and discussion methods, a participatory approach and local potential.  The results of this training were to increase the experience and skills of the PKK mothers of Beringin Makmur village regarding ecoprinting. PKK mothers can find out how to make Ecoprint and can apply it at home. Another hope is that mothers can still produce work even though they are stuck at home. Apart from that, the participation method applied not only adds to the learning experience, but also builds a social environment that supports business development. Thus, this activity contributes to community economic empowerment and environmental preservation through creativity and innovation in the use of natural materials found around.

To achieve progress and development based on the standards that are used as references, the education process is carried out. Education can help people grow into people with character and are productive every day. But in the world of education, a problem arises such as bullying that can threaten students in education. This study aims to reveal the negative impacts of bullying and find a way out of the problem in order to prepare the golden Indonesian nation. The method of implementing anti-bullying socialization is carried out in three stages: planning, implementation, and evaluation. At the planning stage, several things have been determined, including the location and date of the activity, namely at SDN 1 Kumpulrejo, Kumpulrejo Village, Patebon District, Kendal Regency. In addition, a one-day schedule has been made for socialization, material on physical violence to the presentation of material on the language of the impact of bullying. At the implementation stage, socialization is carried out by showing anti-bullying animation videos, presenting material on bullying behavior, verbal violence, and physical. The results of this study indicate that bullying is an act of intimidating and forcing a weaker person or group to do something against their will with the intention of causing physical or mental harm through delivery and attack. Bullying itself has a negative impact on students because it can make victims lose their confidence and feel traumatized. So that with the existence of anti-bullying socialization, bullying behavior in the world of education can be overcome.

The importance of special attention to mothers and children in health services is reflected in the high maternal mortality rate (MMR), which shows the quality of health services in a region. Pregnant women's knowledge of the danger signs of pregnancy is a key factor in preventing complications and death. Maternal and Child Health (KIA) books and pregnancy class programs are one of the efforts to increase this knowledge. This research aims to increase pregnant women's understanding of the danger signs of pregnancy through counseling in Sungai Beras Hilir Village. The methods used were counseling using KIA books, discussions and demonstrations by the Kulim Jaya Community Health Center team and KKN students. The results show an increase in pregnant women's knowledge about the danger signs of pregnancy and prevention of preeclampsia after being given counseling. In conclusion, this activity is effective in increasing pregnant women's understanding of the importance of knowing the danger signs of pregnancy and preventing them, as well as motivating them to carry out routine health control.

Kuliah Kerja Nyata (KKN) is one of the lecture programs that must be provided and implemented by every university in order to achieve one of the goals and tri dharma, namely Pengabdian Kepada Masyarakat (PKM). Mata Lombu is one of the villages selected to carry out the KKN program, but as a village in Indonesia, it is generally not free from several problems. Based on observations and social analysis carried out, there are various problems that need to be addressed including: (1) lack of community understanding regarding local food processing, (2) lack of understanding of farmers regarding preventing pests in crops, (3) lack of literacy and numeracy among students. Elementary and junior high schools in the village, (5) limited access to clean water, and (6) limitations of MSMEs (Micro, Small and Medium Enterprises) in creating jobs. Based on a number of problems found during observations and social analysis, and the description in the background, the main objective of all these programs is to fulfill community service and empowerment in Mata Lombu Village through a project action planning framework or Project Action Plan (PAP). The series of Unkriswina Sumba Regular KKN activity methods includes the stages of program planning, implementation and evaluation. The results of this activity show that this activity can increase insight, understanding and new knowledge regarding local food, making bokashi fertilizer, making natural pesticides, and tutoring, and can increase crop yields, food security, reduce the impact of environmental pollution, and increase value. increase the economy of village communities.

Waste is a serious problem in Indonesia, including in Medan Belawan Regency. The Waste Bank Program is presented as a solution for waste management and community economic empowerment. This study aims to determine the role of the Waste Bank in community income. The research method used is descriptive statistics presented in the form of frequency distribution tables, histograms, steam and leaf (stem and leaf diagrams) or box plots (box line diagrams). Data collection was carried out through interviews, questionnaires and observations. The data analysis technique used is statistical analysis. The Waste Bank Program in Medan Belawan Regency has provided economic, social and environmental benefits. Economic benefits include increasing community income, creating jobs, and saving waste transportation costs. Social benefits include increasing public awareness of the importance of good waste management, and increasing public concern for the environment. Environmental benefits include reducing rubber production, reducing environmental pollution, and preserving natural resources. The Waste Bank Program in Medan Belawan Regency is one example of the application of an effective and sustainable green economy concept. This program can be a model for other waste management programs in Indonesia.