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Sleep is a vital state of rest for humans to maintain a healthy body. After a day of activity, the body requires adequate sleep to recover and regain energy. One common sleep disorder is insomnia, characterized by difficulty sleeping both in terms of quality and quantity. Insomnia has traditionally been treated with sedatives, drugs that reduce anxiety and provide a calming effect with little or no impairment to motor and mental function. However, long-term use of chemical drugs can cause side effects, necessitating alternatives, one of which is the use of traditional medicine. Areca nut (Areca catechu L.) is known to possess antioxidant, antimutagenic, astringent (tightening), and intoxicating properties that have long been used in traditional medicine. This study was conducted experimentally in a laboratory to determine the sedative-hypnotic effects of areca nut ethanol extract. The observed parameter was survival time on the rotarod, and the data were analyzed using one-way ANOVA for homogeneity testing and Shapiro-Wilk for normality testing. If the data were not homogeneous or normal (p < 0.05), the analysis was continued with the nonparametric Kruskal-Wallis and Mann-Whitney tests. The results showed that administration of areca nut ethanol suspension as a positive control with varying doses did not produce significant differences, meaning that all three doses had the same sedative-hypnotic effect. In the treatment groups with areca nut ethanol extract doses of 0.52 mg/kgBW and 0.78 mg/kgBW, significant differences were observed compared to the negative control, indicating a clear sedative-hypnotic effect. Therefore, it can be concluded that areca nut (Areca catechu L.) ethanol extract at doses of 0.52 mg/kgBW and 0.78 mg/kgBW has the potential to provide sedative-hypnotic effects and can therefore be used as an alternative treatment for sleep disorders.

In helping to support the appearance and confidence of the skin needs to be treated especially for dry skin. Having a dry facial skin causes discomfort because the cosmetics used will be difficult to stick to the skin. In addition, weather factors, the use of unsuitable cosmetics, exposed to excessive sun exposure, and unhealthy lifestyles can cause the skin to become dry. The purpose of this study was to determine the process of making gel masks from carrot extracts and seen from laboratory tests, organoleptic tests and hedonic tests. This study uses quantitative methods with an experimental approach. Data collection techniques through observation, documentation and observation sheets that can be seen from the results of laboratory tests, organoleptic tests (texture, color, aroma, adhesion) and hedonic tests (panelists). The results of the study obtained from the results of laboratory tests by looking at the pH level of each formulation are in a safe range of 4-5. In the organoleptic test, panelists declared F1 as a preparation of less thick, orange, and lack of scented in carrot. In the F2 formulation, panelists declare as a texture preparation that is thick, orange, and scented typical of carrots. In the F3 formulation, the panelists declare that the preparation is less thick, less orange, and a typical carrot scented. In the F4 formulation, panelists declare as a very thick, non -orange preparation. And very scented typical of carrots. In the adhesion of the panelist states from all formulations that F4 is very attached. In the hedonic test, the preparation that many panelists like, namely the F4 preparation, is very thick, not orange and very scented typical of carrots. Thus the gel mask of carrot extract can be used as material for making gel masks seen from laboratory tests, organoleptic tests, and hedonic tests.

This study aims to determine the effectiveness of mindfulness training in reducing academic stress levels in college students. The background of this study is based on the high academic pressure experienced by college students, which can impact mental health, learning motivation, and academic achievement. Mindfulness was chosen as an intervention because this approach focuses on increasing full awareness of the present moment in a non-judgmental manner, which is believed to help individuals manage stress more adaptively. The study population was college students, with a sample of 15 participants selected using a simple random sampling technique. The study was conducted in a psychology laboratory under controlled conditions to minimize confounding factors. The research approach used was quantitative with an experimental design. The academic stress measurement instrument consisted of 31 items compiled based on the theory of Sarafino and Smith, which has been tested for validity and reliability. The research procedure included measuring academic stress levels before and after mindfulness training. Data analysis was carried out using a t-test to examine differences in pre-test and post-test scores, and a correlation test to examine the relationship between mindfulness application and stress reduction. The results showed a significance value of 0.00 (p < 0.05) and a correlation value of 0.991, which means Ha was accepted. These findings indicate a very strong positive relationship between mindfulness training and reduced academic stress levels. Therefore, it can be concluded that mindfulness training is effective in reducing academic stress in college students. The implication of this study is the need for higher education institutions to consider mindfulness training programs as a preventive and curative intervention strategy to maintain student mental health, enabling them to face academic demands more healthily and productively.

This research aims to develop an Augmented Reality (AR) application as a navigation aid and facility introduction tool in the Informatics Engineering Building of Bengkalis State Polytechnic. This application is specifically designed to help new students and visitors understand and navigate the complex campus environment. By utilizing AR technology, the application provides an interactive guide that displays routes to various laboratories and presents detailed information about available facilities. The method used in developing this application is the Multimedia Development Life Cycle (MDLC), which consists of five stages: planning, design, development, testing, and launch. In the planning stage, a user needs analysis is conducted to ensure that the developed application meets the expectations and needs of end users. The design stage includes the creation of user interaction flows and visual interfaces, while the development stage involves the integration of AR technology with location data and campus facility information. Testing is conducted to ensure the functionality and accuracy of the navigation features and the quality of the user experience before the application is launched. The results of this study indicate that the AR application is able to provide a more interactive and informative experience than conventional media. New students and visitors can easily find laboratory locations and obtain a clear overview of campus facilities. In addition to improving navigation efficiency, this application also supports the adoption of digital technology in the campus environment. Thus, this research not only contributes in terms of ease of access to information, but also encourages the use of AR technology in the world of education, especially at Bengkalis State Polytechnic.

The low scientific literacy of elementary school students, influenced by the use of conventional learning methods and lack of interactivity, encourages the need for new innovations based on digital technology. This study aims to test the optimization of the use of digital technology as a strategy to improve scientific literacy through a quasi-experimental method with a pretest-posttest control group design. The research subjects consisted of 60 fifth-grade students from one elementary school, namely SDN Pondok Labu 03, taken from 2 classes, each consisting of 30 students (30 students in the experimental group and 30 students in the control group). The experimental group was given a digital technology-based science learning treatment, namely a virtual laboratory (Labster), and an educational application (Quizizz), for 8 weeks, while the control group used conventional methods. The research instruments included a scientific literacy test (HOTS questions) and student activity observation sheets. Data were analyzed quantitatively using t-test and ANOVA to compare the increase in scientific literacy scores between the two groups. The results showed that the experimental group experienced a significant increase in scientific literacy scores (N-Gain 0.72) compared to the control group (N-Gain 0.32). The research conclusion proves that the systematic integration of digital technology is effective in improving the scientific literacy of elementary school students at Pondok Labu 03.

Community-based servant leadership development has emerged as a critical approach for Christian nonprofit organizations seeking to cultivate authentic leaders who embody Christ-centered values. This study explores the integration of theological foundations from Mark 10:45 with Robert K. Greenleaf's servant leadership theory to develop a comprehensive model for leader formation within Christian nonprofit contexts. Employing a qualitative methodology with a library research design, data were collected from scholarly literature and theological sources, then analyzed using Miles and Huberman's interactive model, which includes data reduction, data display, and conclusion drawing. The research reveals a significant alignment between the core message of Mark 10:45—“For even the Son of Man did not come to be served, but to serve”—and the key principles of Greenleaf’s servant leadership, particularly the emphasis on selfless service, empathy, listening, and community building. Community plays a vital role as both a laboratory and an incubator for spiritual and leadership formation, where individuals can internalize leadership values through biblical teaching, mentorship, active religious practices, and shared life experiences. The study proposes a five-stage model: Foundation Building, Community Immersion, Skill Development, Practical Application, and Leadership Multiplication. This model serves as a strategic guide for Christian organizations to intentionally nurture servant leaders. Findings highlight improvements in character formation, organizational effectiveness, and the embodiment of servant leadership traits such as humility, sacrifice, and empathy. The study concludes with practical recommendations for implementation, including structured mentoring systems, the formation of communities of practice, and ongoing evaluation mechanisms. Ultimately, this integrated model supports the mission of Christian nonprofits by shaping leaders who advance both spiritual and social transformation.

The objective of this study was to assess the sensory acceptability of Italian Meringue Butter Cream in terms of texture, aroma, color, and taste, using varying proportions of sweeteners. The research was carried out in the Culinary Arts Laboratory of the Ibu Kartini Academy of Social Welfare. An experimental approach was employed, utilizing a Completely Randomized Design (CRD). The study involved three treatments with different ratios of granulated sugar to stevia: F1 (220 g : 20 g), F2 (150 g : 25 g), and F3 (80 g : 30 g). A total of 35 untrained panelists participated in the hedonic sensory evaluation. The resulting data were analyzed using the non-parametric Kruskal-Wallis test, followed by the Mann-Whitney U test at a 95% confidence level (α = 0.05). The findings revealed that the variation in sweetener proportions significantly influenced the panelists’ preferences regarding aroma, texture, color, and taste. Among all formulations, the F1 treatment received the highest level of overall acceptance.

This research was conducted at the Foreign Language Laboratory of the Faculty of Languages and Arts, Universitas Negeri Medan, with the aim of developing a student worksheet (LKPD) for learning the topic "Guten Tag" for Grade XI students in the first semester. The worksheet was designed based on the ADDIE development model, which consists of five phases: analysis, design, development, implementation, and evaluation. The data for this research were sourced from the textbook Netzwerk Neu A1, specifically from pages 8–17, which cover the subtopics: greetings and farewells, introducing oneself and others, and asking about and responding to well-being. The developed worksheet was evaluated by a content expert and a media expert. The content expert assigned a score of 87.5, which falls into the “good” category, while the media expert assigned a score of 92.8, categorized as “very good”. The worksheet was also implemented and evaluated with a group of ten students from MAN 1 Medan, yielding an average score of 86.95, indicating it is “very suitable”. These findings suggest that the worksheet is appropriate for supporting A1-level German language instruction and can serve as an alternative teaching material for enhancing vocabulary, grammar understanding, and communicative competence in contextually relevant situations.

The industrial revolution 4.0 has begun to develop in aquaculture activities by utilizing the internet of things (IoT) in the last decade. The increase in intensive shrimp farming on Bangka Island in recent years is still conventional witfar from the use of digital and internet-based technology, especially vaname shrimp farming, including the Bio Ebi Micro Pokdakan in Air Mawar Village. This activity aims to design a water quality monitoring system that can be used in vaname shrimp aquaculture ponds. The main components in designing a remote-based pond water quality monitoring system consist of sensors, processing, data transmission, data storage and display. The activity has started with the design of a water quality monitoring tool in October - November 2022 in the Instrumentation and Acoustics Section of the Marine Science Laboratory at Bangka Belitung University which is then used by partners to monitor water quality conditions in shrimp ponds at Pokdakan Mikro Bio Ebi partners

This study aims to analyze the effect of high-lob technique on petanque sport pointing using a concrete field surface. The method used is descriptive research with implementation at the Petanque Laboratory of Surabaya State University. The subjects of the study were five Unesa petanque athletes who were selected based on their technical skills. Data collection techniques include field observation, skill tests, documentation, and data analysis using the Kinovea and Capcut applications. The results showed that at a distance of 6 meters, the release angle was 63.5°, the height was 3.53 m, the rolling distance was 35 cm, and the final result was 8.5 cm. At a distance of 7 meters, the release angle was 63.4°, the height was 4.01 m, the rolling distance was 53 cm, and the final result was 10.4 cm. At a distance of 8 meters, the release angle was 62.3°, the height was 3.99 m, the rolling distance was 59 cm, and the final result was 13.4 cm. Meanwhile, at a distance of 9 meters, the release angle is 60.3°, the height is 4.16 m, the roll is 53 cm, and the final result is 19.2 cm. All parameters have met the effectiveness criteria based on existing references, except for the rolling distances at 7, 8, and 9 meters which exceed the ideal limit. These results imply that adjusting the drop point and increasing the angle and height of the bounce can optimize the results of the high-lob pointing technique.

White shrimp (Litopenaeus vannamei) is an introduced species cultivated in Indonesia and plays an important role in increasing national shrimp production and exports. However, infectious diseases such as Enterocytozoon hepatopenaei (EHP) and Acute Hepatopancreatic Necrosis Disease (AHPND) pose a serious threat to the shrimp farming industry. These two diseases cause a decrease in shrimp growth and production performance. The Polymerase Chain Reaction (PCR) diagnostic technique is an effective method for detecting EHP and AHPND infections, because the results are fast and accurate. This research was carried out at the Juanda Fish Quarantine Laboratory, Animal, Fish and Plant Quarantine Center (BKHIT) East Java from July 1 to August 29 2024. This research aims to find out examination techniques and examination results for Enterocytozoon hepatopenaei (EHP) and Acute Hepatopancreatic Necrosis Disease (AHPND) during the examination process at BKHIT East Java. The test method used is a descriptive method by collecting primary and secondary data. The EHP examination at BKHIT East Java uses the single step PCR method, while the AHPND examination uses the Nested PCR method which consists of extraction, amplification, electrophoresis and visualization of the results. Based on the results of examinations during the activity, 4 samples were declared positive for EHP and no samples were declared positive for AHPND out of 51 samples of white shrimp (Litopenaeus vannamei).

This research aims to monitor the performance of a 2x100Wp Solar Power Plant (PLTS) using the parameters of current, power, and solar intensity. The monitoring system is designed to record and analyze the electrical output of the solar panel in real-time. The experimental method is used by collecting data directly through current and voltage sensors, as well as light sensors connected to a microcontroller. Data was collected to see the relationship between solar intensity and electrical power generated. The test results show that the intensity of the sun greatly affects the amount of current and power generated by the solar panel. This monitoring system can be a tool for learning and analyzing the performance of small-scale solar power systems in a laboratory environment.

Education is an important aspect in improving the quality of human resources, especially in higher education in the field of engineering where a deep understanding of technical material is needed. The Electrical Circuit course is often a challenge because there are many abstract concepts that are difficult for students to understand. This study aims to analyze the effect of using PhET Simulation as a technology-based learning media to improve the learning outcomes of Electrical Engineering students in the Electrical Circuit course, as well as evaluating its ability to increase student involvement and become an alternative to limited laboratory experiments. The study used a One-Group Pretest-Posttest design with a sample of 30 students. Data was collected through pretest and posttest, then analyzed using N-Gain test. The results showed that there was a significant increase in the average student score from 59.07 in the pretest to 81.87 in the posttest, with an N-Gain score of 0.55 which was included in the moderate category. This finding proves that PhET Simulation is effective in improving the understanding of Electrical Circuit concepts, as well as increasing student engagement through interactive learning. This simulation also provides flexibility in conducting virtual experiments, so it can be a solution to the limitations of physical laboratories.

The purpose of the study was to analyze the legal status of narcotics abusers after the hand-holding operation. This type of research is normative legal research with a legislative approach, a case approach and a conceptual approach. The analysis used in this study is qualitative data analysis through the management of legal materials in a deductive way. Based on the research, the results of the research were obtained that in Law Number 35 of 2009 concerning Narcotics, it is stated that after the arrest operation or after the seizure, within a minimum of 3 x 24 hours an evidence test must be carried out to ensure the narcotic content found, then this can have implications for the legal status of a person arrested in the arrest operation. A person caught in a narcotics case can have several possible legal statuses, including; as an arrested witness, if he is only at the scene of the incident without direct evidence of his involvement; as a suspect, if there is preliminary evidence that he possesses or uses narcotics; as a person without legal status who is temporarily detained, if his status is still waiting for the results of laboratory tests of evidence. Therefore, it is necessary to update regulations through the revision of the Narcotics Law which must contain clear time limits on how a person who is caught must be treated before the results of the evidence test come out..

The purpose of this study is to evaluate how effective the laboratory information system is in terms of data transmission and website speed at the UNTIRTA VTE Laboratory. To conduct this study, a literature review and direct observation of the data sending and receiving process, as measured by PageSpeed ​​Insights, were used. The results showed that overall, the website performance was good, with optimal FCP and LCP values ​​on desktop and mobile devices. However, elements such as Interaction to Next Paint (INP) and Speed ​​Index (SI) require additional improvements to improve interactivity and access speed. The student dashboard page is considered the main activity center, according to the analysis of user access pattern data. However, pages with large file sizes require better data transmission management to avoid bottlenecks. The student dashboard page is considered the main activity center, according to the analysis of user access pattern data. However, pages with large file sizes require better data transmission management to avoid bottlenecks. This study provides an overview of how effective data transmission and user experience are on the laboratory website and suggests the development of infrastructure and website optimization elements, such as caching and file size reduction. These results contribute to the continuous improvement of the laboratory website, which is very important to meet the data and information service needs of UNTIRTA VTE Laboratory users in real-time.    

The objective of this research is to develop interactive learning media using the Baamboozle application with the topic “Zeit mit Freunden” on reading skill level A1. The present study was conducted in the language laboratory of the Faculty of Language and Arts, State University of Medan. The present research employs the developmental model of Richey and Klein, which comprises three distinct stages: (1) planning, (2) making, and (3) evaluation. The data presented herein were collected through a combination of interviews, observations, and a thorough literature study, with the material drawn from the publication entitled Netzwerk neu A1. The result of this research is a digital game-based interactive learning media designed to improve students reading ability at A1 level. The aspects that are assessed include content, interactivity, ease of use, and design. The validation process was conducted by media and material experts, and the result was 92, which is classified as very good.

Marketing is the backbone of a business’s existence. Various ideas, creativity, and innovations in marketing continue to evolve in different forms. To attract a large number of consumers, some businesses engage in overclaim marketing. While this strategy may bring positive outcomes for some companies, it can also have negative consequences for others. One brand that has practiced overclaim marketing is Daviena Skincare. This study aims to analyze the impact of overclaim marketing on consumer trust in Daviena Skincare products. The research was conducted using a qualitative descriptive approach, with data obtained through digital tracing and observation. The findings indicate that overclaim marketing in the skincare industry, as practiced by Daviena Skincare, has negatively affected consumer trust. The overclaims identified include promises of instant results, false claims about premium ingredients, and unverified testimonials. An investigation by Doctor Detective revealed significant discrepancies between marketing claims and the actual product composition, such as Niacinamide, which was advertised at 10% but was not detected in laboratory tests. These findings contradict the marketed product benefits, leading to consumer disappointment and decreased brand loyalty. This phenomenon underscores the urgency for brands to be more transparent and ethical in their marketing strategies. Therefore, overclaim marketing practices must be eliminated to maintain the integrity of the industry and protect consumers’ rights to accurate information and products that align with their claims.

Red roses (Rosa damascena Mill.) are known to contain active compounds such as flavonoids, tannins, and vitamin C, which have potential antioxidant and anti-inflammatory properties. However, the utilization of rose flower waste after extraction remains limited. This study aims to formulate and evaluate gel preparations based on red rose extract and post-extraction rose flower waste as an innovation in natural-based topical formulations. This research is an experimental laboratory study using a post-test only design. Three concentration variations were formulated for both the extract (F1, F2, F3) and rose flower waste (F4, F5, F6) using HPMC as the gel base. Physical evaluations included organoleptic testing, homogeneity, pH, adhesion, spreadability, and viscosity. Data were analyzed descriptively and statistically using the Kruskal–Wallis test to determine the effect of concentration variation on physical parameters. All formulations showed good organoleptic and homogeneity results. The pH values were within the safe range for skin (4.75–5.92). Adhesion times met the criteria of >1 second, with a tendency to increase alongside higher concentrations of active ingredients. Spreadability fell within the acceptable range (3–5 cm), decreasing as viscosity increased. The viscosity values ranged from 20,150 to 20,182 cps. There was a significant effect of concentration variation on pH (p < 0.05), adhesion in extract-based gels (p = 0.021), and spreadability in waste-based gels (p = 0.024). In conclusion, gel preparations made from red rose extract and its waste can be successfully formulated with good physical stability and meet standard criteria for topical formulations. Rose flower waste has potential as an alternative active ingredient in the development of natural-based gel products.

Bridge infrastructure is a vital component of transportation systems that is vulnerable to structural damage caused by dynamic loads, environmental factors, and aging. Early crack detection is crucial to prevent structural failures that may lead to catastrophic consequences. This study aims to develop a non-destructive detection method based on acoustic sensors to identify cracks in bridge structures with higher sensitivity and accuracy compared to conventional visual inspections. The research was conducted through laboratory experiments and field tests using acoustic sensors, data acquisition devices, and signal analysis software. The procedure included sensor installation on a bridge model, simulation of artificial cracks with varying sizes and positions, recording of acoustic wave signals, and data analysis using frequency spectrum, amplitude, and waveform pattern approaches. The results show significant differences between normal and cracked conditions in the frequency spectrum, where cracks produced amplitude anomalies at specific frequencies. Amplitude analysis revealed a positive correlation between crack size and acoustic signal intensity, while waveform pattern analysis demonstrated the influence of crack position on distortion levels. Cracks located at the center generated the highest distortion, followed by joints and edges. These findings confirm that acoustic sensors, particularly fiber-optic-based ones, offer advantages such as high sensitivity, reliability under complex environmental conditions, and the ability to detect subsurface cracks. The implications of this research highlight the potential development of an acoustic sensor-based structural health monitoring system integrated with real-time analysis software, thereby supporting preventive maintenance, extending infrastructure lifespan, and enhancing transportation safety.

This study aims to analyze the strategy of natural science laboratory management in improving the quality of practicums in senior high schools. This study uses a literature review approach by examining various academic sources related to laboratory management. The results of the analysis indicate that effective laboratory management includes five main strategies, namely management of equipment, materials, data, laboratory personnel training, and cost budgeting. The success of implementing this strategy depends on the implementation of supporting factors such as work safety, infrastructure quality, personnel capabilities and excellent data management systems. However, there are still many obstacles, including limited facilities and infrastructure, lack of professionals, inadequate budgets, and optimal planning and implementation of practices. Comprehensive improvements in laboratory management are expected to enable learning science to be implemented in a more optimal and sustainable manner.