Search

Because women in Indonesian society gain more experience in the family, one of which is education instilled through family gender culture, women's career aspirations are believed to have their own characteristics. In today's society, the current condition of female students' career expectations is apprehensive. Most of the female students do not have any professional characteristics, such as career aspirations. This research involving 109 female students from various cultural contexts will divide their findings into two categories: patriarchal family education and matriarchal family education. The main objective of this research is to investigate the career expectations of female students in relation to patriarchal and matriarchal family education, and to compare the two household categories. As a result, the majority of female students from societies that place a patriarchal emphasis on gender have expectations of career self-efficacy, whereas those from societies that place a matriarchal emphasis on gender have expectations of outcomes. Parametric analysis of variance (ANOVA) test was used for comparative analysis. The test results show F = 75.011 for career expectations on self-efficacy and F = 145.467 for outcome expectation (OE). 0.000 is a significant value for both variations.

Mathematical beliefs and metacognitive knowledge play significant roles in solving mathematical problems; thus, this study aims to investigate the influence of middle school students' beliefs on their metacognitive knowledge when solving geometry problems. This study utilizes both quantitative and qualitative research methods. A linear regression test was used to determine the effect of middle school students' beliefs on their metacognitive knowledge. The results of the quantitative research analysis were followed up with a qualitative research approach to describe the metacognitive knowledge of students who have high and low confidence in solving geometric problems. This research involved 352 middle school students in the Tarakan area. Based on the results of linear regression, it is known that the beliefs of middle school students have a positive effect on their metacognitive knowledge when solving geometric problems. In addition, it was found that students with different beliefs could solve a given geometry problem, but the approach to solving it varied among subjects. Middle school students have diverse beliefs, but these variations do not affect their capacity to apply their metacognitive knowledge at every stage of solving mathematical problems.

The objective of this research was to assess the efficacy of project-based learning in enhancing the analysis of student worksheets in the domains of Science, Technology, Engineering, Arts, and Mathematics (STEAM) with the integration of the ecoprint technique, focusing on its influence on student motivation and creativity. This investigation was conducted as a quasi-experiment involving a sample size of 150 students selected through cluster sampling. Data collection was executed using standardized tests, with instrument validity ascertained through the Aiken index and instrument reliability determined via Cronbach's alpha coefficient. Data analysis was performed using multivariate analysis (MANOVA) and descriptive quantitative methods. The study's findings reveal a significant disparity in the mean scores of both learning motivation and student creativity. In conclusion, the implementation of project-based learning coupled with STEAM-based student worksheet analysis utilizing the ecoprint technique yields a substantial enhancement in learning motivation and student creativity. These findings underscore the success of employing STEAM-based worksheets in conjunction with the ecoprint method to foster students' motivation and creativity, as ecoprint inherently encompasses all STEAM components within the manufacturing process.

Abstraction is essential to learning mathematics because the mathematical concepts obtained through abstraction will be more meaningful than directly receiving these concepts. This study aims to describe the pre-service teachers' abstraction in constructing relationships among quadrilaterals. This research method was explorative qualitative research with a purposive sampling technique. The subject of this research was a pre-service mathematics teacher who had taken a geometry course. The data analysis techniques used in this study were data condensation, data display, drawing and verifying conclusions. The research results showed that the participant used epistemic actions in an abstraction, such as recognising each quadrilateral type, building-with their properties, constructing relationships among them, and consolidating the abstract results made. Thus, the abstraction in constructing relationships among quadrilaterals can be observed from the epistemic actions: recognising, building-with, constructing, and consolidation, known as RBC+C.

Many educators highly recommend integrating science learning with the themes of local wisdom. Orientation to indigenous knowledge and Western science is believed to facilitate students in connecting science learning with the actual condition of their surroundings. The applied curriculum yet widely provided an opportunity for such local integration in science learning. This study aim to investigates the indigenous science and values of Betawi tribe (Indonesia) traditional martial art "silat beksi" to identify ccontent's and valuable context for science learning in biology education on the topic of movements systems. This study employs a qualitative method with a descriptive approach of ethnoscience studies. Data analysis was carried out by qualitatively interpreting the results of interviews and direct observations (data reduction/categorisation, data appearance, drawing conclusions). The results showed twelve reconstructed moves of "silat beksi" based on the bones, joints, muscles and the type of movement. It shows a scientifically rich cultural context in the local wisdom of Betawi people. This research contributes to integrating aspects of local wisdom that are relevant to science learning. It also emphasizes the importance of studying and identifying local wisdom aspects in science learning before being integrated into the curriculum

The study aims to investigate the English presentation self-efficacy of ESP undergraduate students through a longitudinal-experimental research design. Rooted in Bandura's social cognitive theory, it addresses two research problems: how Indonesian ESP undergraduate students' English presentation self-efficacy developed when they were exposed to mastery experience in the form of presentation tasks, and how individual and group presentation tasks affected the English presentation self-efficacy development. Three groups of ESP undergraduate students (n = 107) taking ESP English for Management were purposively selected as the participants for the study. Each group was exposed to one of the three forms of interventions: individual presentation tasks, homogeneous-group presentation tasks, and heterogeneous-group presentation tasks. A Likert-type presentation self-efficacy questionnaire validated by exploratory factor analysis (EFA) was utilized to collect the data in Weeks 3, 8, 12, and 16 of the semester. The study found that the Indonesian ESP undergraduate students' English presentation self-efficacy developed significantly as they completed the presentation tasks. The homogeneous-group presentation task outperformed both the heterogeneous-group and individual presentation tasks in enhancing English presentation self-efficacy. Implications for the teaching practices, study limitations, and future research recommendations are presented.

The study aims to investigate the effectiveness of MALL application using in the classroom. One of Mobile Assisted Language Learning (MALL) application used is Quizlet. The study employs a Classroom Action Research approach to assess the impact of Quizlet on third semester of Business Management students' vocabulary mastery. The data collection techniques in this research are observation and test. The result of this research show that MALL/Quizlet contribute to a substantial improvement in vocabulary test scores and leading students to enhance their vocabulary proficiency. The use of technology-based tools like Quizlet not only facilitated self learning but also improved pronunciation and contextual usage of words. The accessibility of devices like stability of internet connections, students self motivation, and effective supervision emerged as critical element impacting the efficiency of Mobile Assisted Language Learning (MALL), particularly the utilization of Quizlet for enhancing vocabulary mastery.

This study is based on the bibliometrics analysis of research publications that focus on highlighting the argumentation on mathematics education. The main objective of this study is to analyze the distribution of research results, the main journals for publication, and the most productive authors, the pattern of authorship and the pattern of citation. Data was collected from Scopus database and was analyzed using VOSviewer software. A total of 173 articles published from 1995 to December 2021 were retrieved and perused. Graphs, tables, charts, and maps have been used to analyze and present collected data. The analysis results show that argumentation in mathematics education has been studied frequently with the concepts of proof, reasoning, teacher education, and geometry. Journal of Mathematical Behavior and Educational Studies in Mathematics have been the top journals, and the University of Rutgers has been the most influential institution, and the United States has had a significant prevalence in this field. The results of this study provide insights for researchers interested in mathematics education in this field, suggesting that they can explore various alternatives to the major research trends and the influential articles mentioned. Based on the results, recommendations for future studies are provided.

The objective of this study was to evaluate and characterize the argumentation patterns used by seventh-grade students in the context of algebraic addition and subtraction problems. A qualitative case study was conducted using the Claim-Evidence-Reasoning (CER) model (McNeill & Krajcik, 2008) and argument quality framework. To describe the arguments put forth by the participants, a sample of ten students with high mathematics proficiency and ten students with low mathematics proficiency were selected from the target population of junior high schools in a large region of West Java, Indonesia. Data collection was carried out using written argumentation frame for algebraic operations (AFAO). The results revealed that, although none of the students employed the CH+EH+RH pattern (which represents the highest quality of arguments), students with high mathematics proficiency levels exhibited a greater prevalence of these argumentation patterns compared to those with low mathematics proficiency levels. The findings have implications as a valuable resource for teachers in monitoring the advancement of their students and preventing or alleviating diverse difficulties or inaccuracies that they may face. Based on the findings, a specific design for a classroom teaching activity is proposed.

Microplastics (MPs) have emerged as one of the global principal marine environmental problems in many countries, including Indonesia. However, fewer studies have been conducted on the MP impact on aquatic organisms. Thus, the present case study aimed to investigate the presence of MPs in mangrove sediments and coral reef fish in Biawak Island, West Java, Indonesia.

Social media technology affects the learning paradigm change towards social media-based learning, known as social e-learning. Social e-learning regards a person as a center of learning, dubbed people-centered learning. Here, people are encouraged to interact or communicate with others and produce their learning content. This work attempted to provide a solution model for rural e-learning social learning empowered with intelligent web technology. The proposed social e-learning includes several modules for development, such as personal space, collaboration space, and communication space modules. It also leverages intelligent web technologies currently implemented in today’s social media applications, such as article search, article recommendations, friendship recommendations, and document classification. In the searching module, the PageRank method was used to calculate the relevance score to determine the rating of the documents or articles. The similarity-based element calculation method was utilized to create articles’ suggestions and recommendations. The naïve Bayes algorithm, decision tree, and neural network were compared to find the best solution for article classification in agriculture, fisheries, animal husbandry, and plantations. When comparing these three algorithms, the result showed that the neural network was the most accurate classification, reaching 95.2% accuracy. A clustering algorithm, namely robust clustering using links (ROCK), was utilized for rural friendship recommendation. Thus, these algorithms (the PageRank, the similarity-based element, neural network, and the ROCK) were suitable and recommended for supporting intelligent web paradigms in social e-learning applications.

Objective: This study investigates the influence of human resource management practices on job performance by mediating job satisfaction and employee value proposition among state-owned enterprise company employees. Design/Methods/Approach: This study was analyzed using an explanatory research approach with quantitative data collected through structured questionnaires involving 396 employees. Path Analysis was employed to investigate the research data using the Structural Equation Model and LISREL as statistical data processing tools. Findings: The results show that human resource management practices do not directly, positively, and significantly impact job performance in the company. However, the findings indicate a significant favorable influence of Human Resource Management Practices on Job Performance by mediating Job Satisfaction and Employee Value Proposition. Originality/Value: The existing literature highlights the unclear relationship between Human Resource Management Practices and Job Performance, often resembling a 'black box,' emphasizing the necessity to identify mediating variables operating through unexplained mechanisms. This study contributes to the existing literature by investigating the mediation role of employee value proposition alongside job satisfaction and explaining the relationship between human resource management practices and job performance in a state-owned enterprise. Practical/Policy implication: The state-owned enterprise company is advised to improve job satisfaction and perceived employee value proposition to increase job performance. Specifically, the state-owned enterprise company should improve its human resource management practices by providing better job stability and competitive salaries and incentives.

Coffee is a significant commodity trend, with numerous coffee shops rapidly established in Indonesia. The development of this industry has led to an increased discharge of coffee grounds into the environment. The discarded grounds contain oil which can be optimized using various methods and serve as a raw material for biodiesel. Therefore, this study aimed to compare the maceration and ultrasonic methods of extracting coffee grounds. The comparison focused on yield, mass transfer value (diffusivity), and extraction speed constant based on the proposed mathematical model. The results showed a yield of 12.1% and 16%, for the maceration and ultrasonic methods, respectively. Diffusivity value was registered at 9.99 x 10-11 m2/min and 9.8 x 10-10 m2/min, while extraction speed constant values were discovered to be 0.2 m/min and 1.798 m/min, respectively. Additionally, the energy evaluation of ultrasonic extraction produced a Gibbs energy value of -3765.72 Joules.

This research aims to describe the ability of class VIII students at SMP Negeri 1 Ciamis in solving mathematics problems on SPLDV material based on the self-efficacy category. The research methodology used is descriptive qualitative research. The research subjects in this study were 30 students in class VIII-E of SMP Negeri 1 Ciamis. The data collection technique is a purposive sampling technique which begins with students filling out the self-efficacy questionnaire twice at different times, then filling in the numeracy ability test questions, and after that an interview is conducted. The results of this research are that students who have high self-efficacy will fulfill 3 indicators of numeracy ability and solve questions easily. Students who have moderate self-efficacy will fulfill 3 indicators of numeracy ability but when solving mathematics problems they have obstacles and experience a few errors in using formulas. Students who have low self-efficacy only fulfill 2 indicators of numeracy ability and cannot solve math problems to completion

This community engagement activity aims to enhance high school students' English listening skills through the application of the index card matching method. The implementation method of this service involved training that includes preparation, implementation, practice, and evaluation stages. The participants of this training were 34 students from class XII in SMAN 1 Wonomulyo, Polewali Mandar Regency. The evaluation instrument for this activity used a pre-test and post-test with quantitative data analysis. The results of this community service activity showed an improvement in students' listening skills after applying the index card matching method. The average student score increased by 34 points from the initial test average score of 46.00 to 80.00 on the final test. During the community service process, students showed interest and a positive response, and actively participated in the learning process with high enthusiasm and interaction.

This community service activity aims to increase the attractiveness of Markoni Beach in Balikpapan through the creation of website-based promotional media as an effort to increase the number of visitors and community welfare. The method of implementing this service used surveys, outreach and practice. The results of this dedication showed that the creation of website media was used as branding for Markoni Balikpapan Beach. It could increase visitors to Markoni Beach. Apart from that, outreach could increase public understanding regarding the importance of processing waste and maintaining environmental cleanliness in tourist areas. It is hoped that the results of this activity could increase the number of visitors and the economic welfare of the local community.

The designs of gamification platforms are diverse and constantly evolving. Excessive use of various game mechanisms in learning platforms can distract from the learning process. However, the fit of game mechanisms is still uncertain. Thus, this study investigates the effect of achieving fit when implementing game mechanisms on learning outcomes by applying the well-known task-technology fit theory (TTF). TTF is frequently employed to improve fit between tasks to be completed and the technology applied. The findings indicate that achieving gamification fit can reduce the cognitive load of students and result in enhanced learning performance in terms of learning outcomes. Data collected from 266 participants were analyzed using the technique of the partial least squares to validate the developed research model. The findings of this study can aid educators and educational technology designers in identifying the design mechanisms and characteristics that can be used to ensure design fit on gamification platforms.

Microplastic pollution in urban water bodies is a growing environmental challenge with significant implications for ecosystems and human health. This study aims to characterize microplastic contamination in Jakarta's Sunter River, Buaran River, and Marunda Estuary, which are crucial conduits for plastic waste into the marine environment. Using Raman spectroscopy, we conducted an extensive analysis of water, sediment, and biota samples from these sites to identify the types and sources of microplastic polymers present. Our findings reveal significant contamination, with polyethylene terephthalate (PET) and polypropylene (PP) being the most common polymers. The Sunter River had high levels of PET, primarily from discarded beverage bottles and food packaging, while the Buaran River was primarily contaminated with PP, commonly found in plastic containers, automotive parts, and textiles. In contrast, the Marunda Estuary showed a distinct pollution pattern, with a significant presence of foam particles likely originating from construction and packaging materials. This research demonstrates the effectiveness of Raman spectroscopy in precisely and consistently identifying microplastics, surpassing traditional visual inspection methods. By accurately determining the chemical composition of microplastics, Raman spectroscopy enhances our understanding of the origins and pathways of plastic pollution in urban environments. The study's conclusions underscore the need for targeted waste management strategies to address specific polymer types and reduce their environmental impact. For example, increasing recycling efforts for PET bottles and minimizing the use of single-use plastics made from PP could significantly decrease the presence of these microplastics in water bodies. Furthermore, by elucidating the polymer composition of microplastics, our work contributes to a better understanding of the associated health risks, as different polymers interact differently with environmental toxins. However, this study has limitations. It focuses only on selected urban water bodies in Jakarta, and the findings may not be applicable to other regions. Despite these limitations, our research has practical value, as it can inform policy-making and the development of interventions to mitigate microplastic pollution in urban aquatic environments.

Long-term continuous cropping exacerbates nutrient loss and deteriorates soil quality. To achieve high yields and economic gains, continuous farming is often practiced, disregarding soil carrying capacity and degradation. This practice has been prevalent in regions that serve as horticultural centers, supplying vegetables to various areas. This study aims to elucidate the specific impacts of continuous cropping on soil chemical properties, providing new scientific insights into nutrient depletion in highland horticultural regions. By analyzing soil samples from agricultural lands with a history of prolonged continuous cultivation in Bali Province, this research seeks to identify previously unreported patterns of soil chemical property decline. Laboratory analyses quantified essential soil chemical properties based on established soil quality indices. The results revealed significant reductions in key nutrients, with nitrogen levels ranging from 0.10% to 0.38% and phosphorus levels from 1.84 ppm to 5.31 ppm. Additionally, soil properties such as cation exchange capacity (CEC) (20.68-22.23 me 100g⁻¹), base saturation (38.71-47.62%), and organic carbon (1.56-2.96%) exhibited moderate limitations. These findings underscore the susceptibility of soil chemical properties to continuous cropping systems and their adverse effects on agricultural productivity. A limitation of this study is the focus on a single season's soil samples, without accounting for climatic variability, suggesting a need for future time-series analyses. This research uniquely demonstrates the significant nutrient depletion associated with prolonged continuous cultivation. To mitigate these effects, we advocate for crop rotation, incorporation of crop residues into the soil, and the use of organic fertilizers to preserve soil health, sustain long-term agricultural productivity, and maintain environmental balance.

The quality of rivers and coastal is gradually deteriorating along with rapid population and socio-economic growth in the watershed to the estuary. Sampling was conducted in Semarang city rivers and Demak district rivers, Central Java Province, Indonesia, at four different stations according to geography and designation: river basins, estuaries, and rivers affected by industrial and domestic waste. Research time is August - October 2023 during the dry season. The research method uses descriptive analysis to determine the variables to be studied based on the research results in the field. River and coastal pollution levels are measured using the Heavy Metal Pollution Index method, with several water quality parameters measured, such as BOD, COD, Ammonia, TDS, TSS, and Total Coliform. In contrast, the heavy metal parameters measured are Cd, Ni, Zn, Cu, and Pb. The heavy metals and water quality parameters analyzed guided by Government Regulation of the Republic of Indonesia Number 22 of 2021 class 2. Water quality and heavy metal analysis use the Heavy Metals Pollution Index (HPI). HPI is an assessment method that shows the influence of individual heavy metal compounds on overall water quality. The results show that the status of non-metal water quality in terms of HPI analysis shows that Sampling Station (SS) 1 is 224.30 (unsuitable for drinking), SS 2 is 645.98 (unsuitable for drinking), SS 3 is 320.09 (unsuitable for drinking), SS 4 is 252.09 (unsuitable for drinking), and metal parameters in terms of HPI analysis show that SS1 is 26.43 (good), SS2 is 2345.84 (unsuitable for drinking), SS3 is 26.43 (good), and SS4 is 12.64 (excellent). The conclusions from these four research areas indicate that the status of water quality, according to the HPI is unsuitable for drinking, however, indications of heavy metals in 2 areas are still tolerable, namely good and excellent. The decline in water quality in the research area is caused by domestic and industrial waste polluting the waters. In conclusion, this river area requires further management from the collaboration of various stakeholders. Keywords: Water Quality Heavy Metal Coastal Watershed

Cladodes of Opuntia ficus-indica (OFI) are thought to be an excellent source of bioactive compounds, making them an aspirant for the manufacture of health-promoting compounds. This study aims at exploring the pro-apoptotic effects of spiny and thornless OFI cladode extracts on the human immortalized myelogenous leukemia cell line (K562).

Introduction: Enhanced Recovery After Surgery (ERAS) implementation in remote areas by operating hospital ships is immensely helpful due to high patient turnover, reducing costs, and minimizing the effects of surgical stress. Utilization of regional anesthetics, namely ultrasound-guided Transversus Abdominis Plane (TAP) block or Quadratus Lumborum (QL) block, is applicable and beneficial in this setting. Objective: Due to the limited time, facilities, and health personnel available in floating hospital services surgery, several adjustments in anesthetic methods are required to rapidly return patients to their preoperative physiologic state. Therefore, we wrote this case report. Case Series: We presented case series of lower abdominal surgery performed in Ksatria Airlangga Floating Hospital with the implementation of peripheral nerve blocks as one of the ERAS protocols in one of the remote islands in Indonesia, Gili Iyang Island. Two patients underwent TAP blocks, while the remaining two received QL Blocks. A peripheral nerve block was performed under ultrasound guidance and a 20-mL injection of 0.25% levobupivacaine to QL muscle or TAP. During the observation, we found Visual Analogue Score (VAS) of 1-2 after surgery, no post-operative sedation needed, only 1 patient experienced nausea without vomiting, and the length of health facility stay were less than 3 days. Discussion: Nearly all of our patients who underwent lower abdomen surgery got benefits from the application of peripheral nerve block. Because there was no opioid consumption in our cases, the risk of unwanted effect of opioids like postoperative nausea and vomiting, were also decreased. Conclusion: Peripheral nerve block, as mentioned TAP Block and QL Block, has emerged as a promising alternative to prevent and manage post-operative pain in remote medicine settings, namely Ksatria Airlangga Floating Hospital, particularly in areas with few medical facilities.

COVID-19 dan penyakit paru-paru telah menjadi faktor utama penyebab kematian manusia di seluruh dunia. Kematian pasien dipengaruhi oleh keterlambatan deteksi dini. Sebagian besar profesional medis menggunakan gambar untuk mengidentifikasi kondisi paru-paru. Namun, para ahli yang dapat me-diagnosis dengan gambar sangat terbatas. Diagnosis gambar mendiagnosa menggunakan penglihatan manusia secara konvensional. Klasifikasi penyakit paru-paru sangat bervariasi. Masalah yang disebutkan di atas menunjukkan bahwa deteksi penyakit paru-paru dengan Artificial Intelligence (AI) yang efektif telah ditetapkan. Namun, sebagian besar hasil penyakit paru-paru salah didiagnosis. Bagi pasien, masalah ini menjadi masalah besar. Bertujuan untuk menangani klasifikasi penyakit paru-paru dengan deteksi kesalahan yang tinggi, kami menggunakan beberapa teknik pre-processing gambar dan menerapkan model pembelajaran mendalam dalam EfficientNet. Model Pre-processing termasuk augmentasi, peningkatan white balance, dan peningkatan kontras. Berdasarkan penelitian sebelumnya, mayoritas proses analisa gambar medis mengalami kualitas gambar yang rendah. Berdasarkan laporan eksperimen, model yang kami usulkan mencapai hasil yang signifikan dalam mengurangi kesalahan deteksi pada klasifikasi penyakit paru-paru. Dimana hasil F1 score-nya 0,97, recallnya 0,98, presisinya 0,96, dan akurasinya 0,97. Kami mempertimbangkan untuk menggunakan model yang kami usulkan dalam klasifikasi multi-class. Kami mengevaluasi model yang kami usulkan menggunakan evaluation metric dan AUC Curve.

Waves is one of the Physics materials that must be mastered and understood. Students need help describing the mechanism of wave movement, so it is necessary to develop a test instrument tailored to the scientific field of Biology. Therefore, the study aimed to develop a Wave conceptual knowledge test instrument that can be used to train and measure the mastery of Physics concepts of the Wave topic of Biology Department students that meet the instrument's feasibility, including content validity, reliability, and difficulty level. This research uses the 4D development model (Four-D models), which consists of four stages: Define, Design, Development, and Disseminate. Instruments-based feasibility is based on content validity, test reliability, and difficulty level. Based on the study results, the instruments developed were based on indicators of achievement of Physics competencies for Biology Department students. The content was adjusted to the field of Biology, namely the concept of waves in the human and animal hearing system. The test instrument met the criteria, namely content validity, test reliability, and difficulty level, so this instrument can be used to train and measure the physics concept mastery of Biology students. The wave topic adapted to the scientific field of Biology can help Biology students understand the wave concepts correctly.

Seventy-one point five million (71,5 million or 26,4 percent) people in Indonesia are classified as Gen Z. Indonesia is the largest Muslim-majority country, with a significant portion of its population belonging to Gen Z. It is our concern to explore the potential of Muslim Gen Z. Furthermore, in the digital era, Muslim Gen Z’s investment decisions are increasingly influenced by social media where they can easily get various information. This study analyzes both the direct and indirect effects of social media, digital financial literacy, and investment decisions. We used a quantitative approach. Data were collected from 175 Gen Z investors through an online questionnaire and analyzed using path analysis with SEM-PLS. Our findings reveal that social media enhances digital financial literacy, which in turn positively affects investment decisions. Also, digital financial literacy enhances investment decisions among Muslim Gen Z. These results suggest that while social media can be a valuable resource for improving financial literacy, the reliability and depth of information from online communities may be insufficient for making informed investment decisions. Our study provides insights for investors to develop effective strategies and for policymakers to enhance financial education initiatives.

The 1945 Constitution of the Republic of Indonesia (UUD 1945) does not explicitly define “election result disputes.” This definition is only found in several laws and Constitutional Court (MK) Regulations, limited to the context of “vote counting errors.” This research aims to reformulate the concept of election results as an object of dispute in the MK to ensure certainty and justice for candidates and/or candidate pairs. This study uses a normative juridical research method. Elections, as an embodiment of the people’s sovereignty, result in the acquisition of votes and the determination of elected candidates and/or candidate pairs to occupy political positions in government. The resolution of election result disputes in the MK relates to objections to the validity of the vote count, both quantitatively and qualitatively. The examination of the validity of vote acquisition maps the MK’s authority into two scopes: absolute competence and relative competence. The MK’s absolute competence relates to resolving disputes over vote acquisition, while relative competence pertains to ensuring constitutionality, including adherence to election regulations by election organizers during the election stages.

This study aims to determine the contribution of the ocean to the intensity of heavy rainfall in Bengkulu, Indonesia during the dry season (2016-2022). The primary data used in this study is daily rainfall data from the Bengkulu Meteorology Climatology and Geophysics Agency BMKG station. In addition, supporting data are also used in the form of rain parameters, 10 m wind, sea surface temperature, and sea surface currents from ERA5 reanalysis data with daily temporal and spatial resolution of 0.05°. The method used is a composite method that calculates 64 samples of heavy rain. The results showed that low-speed winds formed an eddy in the sea area west of Sumatra which together with heavy rains resulted in an increase in sea surface temperature. In addition, for the 2019 dry season case study, 1 m/s winds near the Bengkulu coast are associated with heavy rainfall (>100 mm) and during the 2022 dry season, 1-4 m/s winds spread from the coast to the Indian Ocean sea, causing rainfall (>50 mm) on the Bengkulu coast and surrounding areas. When sea surface temperatures are high there is the potential for heavy rainfall in areas of low wind speed. The current in each year is different and has a pattern, every year a strong current from the Indian Ocean will move towards the coastal area every 3-year period. When in 2016 the current (>1 m/sec) is in the Indian Ocean, then the following year 2017 the current (>1 m/sec) shifts closer to the coastal area until in 2018 a strong current is on the coast and the following years a stronger current comes from the Indian Ocean.

Background: The Corona Virus Disease 2019 (COVID-19) pandemic is causing problems in public health. One of the prevention efforts is vaccination. Omicron, the new variant of COVID-19, is a variant that is spreading rapidly in Indonesia, including in Riau Province. Purpose: This study aims to describe the determinants of vaccination status in deaths of Omicron variant COVID-19 patients in Riau Province from February to April 2022. Methods: Cross-sectional research was conducted using secondary data. A total of 158 patients who died with confirmed COVID-19 and the Omicron variant via S-Gene Target Failure (SGTF) and sequencing test, and were treated at a referral hospital in Riau Province within two months (8 February – 4 April 2022) were included in the study. The distribution of patient deaths was analyzed univariately and bivariately. Results: Most of the death cases were unvaccinated (67.09%). As many as 48.73% of the 158 deaths were elderly ≥61 years, and the majority (70.13%) of cases were unvaccinated. It was found that 64.56% of the 158 patient deaths occurred in mainland Riau, and the majority (67.65%) were unvaccinated. Diabetes mellitus (35.86%) and cardiovascular disease (28.97%) were the highest comorbidities. Conclusion: In preventing deaths due to COVID-19, it is necessary to accelerate and increase vaccination coverage, especially for children and the elderly in land and coastal areas. Vaccination can optimize protection against COVID-19. Apart from that, efforts are needed to prevent the severity of comorbidities.

Chlorpromazine (CPZ) is one of the most effective antipsychotic drugs used for managing psychotic related disorders owing to its dopamine receptor blocking action. However, pharmacological investigations against CPZ’s cytotoxic effect have remained scarce. Hence, this study investigated the preventive and reversal effects of taurine and coenzyme-Q10 (COQ-10), which are compounds with proven natural antioxidant properties, against CPZ-induced hematological impairments in male rats. In the preventive study, rats received oral saline (10 ml/kg), taurine (150 mg/kg/day), COQ-10 (10 mg/kg/day) or in combination for 56 days, alongside CPZ (30 mg/kg, p.o.) between days 29–56. In the reversal protocol, rats had CPZ repeatedly for 56 days before taurine and COQ-10 treatments or their combination from days 29–56. Rats were also given taurine (150 mg/kg/day), and COQ-10 (10 mg/kg/day) alone for 56 days. Serums were extracted and assayed for hematological, with oxidative and inflammatory markers. CPZ induced decreased red/white blood cells, erythropoietin, platelet count, packed cell volume and hemoglobin, neutrophil, and lymphocyte, which were prevented and reversed by taurine and COQ-10, or their combination. Taurine and COQ-10 improved mean corpuscular volume, hemoglobin concentration, with increased erythropoietin levels relative to CPZ groups. CPZ-induced increased malondialdehyde, tumor necrosis factor-alpha and interleukin-6 levels with decreased interleukin-10, glutathione, and superoxide-dismutase were prevented and reversed by taurine and COQ-10 in comparison with CPZ groups. Taurine and COQ-10 alone notably improved the antioxidant/anti-inflammatory status relative to controls. Among other mechanisms, taurine and COQ-10 abated CPZ-induced hematological deficiencies, via decreased serum levels of oxidative stress, and pro-inflammatory cytokines release, with increased antioxidants and anti-inflammation function.

Information Technology (IT) literacy is very important and should be taught even in early education. Proper use of IT is needed by the young generations today. Introduction to IT should be done while still in elementary school. However, since the infrastructure of Indonesia is not even among the cities, a glimpse of IT is a privilege enjoyed by students in big cities. Students in smaller cities often face difficulties and tardiness regarding the use of technology. For instance, the students of SD Negeri 02 Sijuk have deficiencies in facilities and infrastructure, which causes a low level of literacy in information technology. Therefore, basic computer skill training was created to introduce the technology to its students. In this training, the students are taught to design and process text and images to create attractive presentations using Microsoft PowerPoint. The students showed very high enthusiasm when the training was carried out. In the end, through this training, the students were successfully introduced to the use of information technology.

Penelitian ini bertujuan untuk mendeskripsikan peningkatan keterampilan menulis siswa pada materi teks laporan hasil observasi melalui permainan edukasi berbasis bookwidgest bermuatan kearifan lokal Madura. Jenis penelitian adalah penelitian Tindakan kelas (PTK) dengan menggunakan dua siklus. Subjek penelitian berjumlah 27 siswa kelas X MA Mambaul Ulum 2 Pamekasan. Teknik pengumpulan data menggunakan Teknik observasi dan tes. Hasil penelitian menunjukkan pada siklus I rata-rata nilai siswa sebesar 78,25 dan siklus II sebesar 83,14 terdapat peningkatan sebesar 4,89. Hasil peningkatan nilai siswa menunjukkan bahwa permainan edukasi berbasis bookwidgest bermuatan kearifan lokal Madura dapat meningkatkan keterampilan menulis teks laporan hasil observasi.

This research states that in Islamic law adopting a child is a good act, which helps adopted children get a proper education. Basically, implementing the above rights of children is an obligation and joint responsibility of the government and society. The phenomenon that occurs in Indonesia is that the educational rights of adopted children have shifted to utilization, due to several factors, one of which is economic. The aim of this research is to strengthen previous research, and examine further the shift in the educational rights of adopted children and look at the factors that result in non-fulfillment of adopted children’s rights in Indonesia. This research uses a normative sociological approach with the nature of the analytical descriptive research. The results of this research found several factors that resulted in shifting, even not being given the rights of adopted children.

Hydrogen is an alternative fuel due to its environmental friendliness and abundance. Hydrogen can be produced through water-splitting technique, in which the Oxygen (O2) and Hydrogen (H2) are separated. Water electrolysis is one of many causes of water-splitting that effectively results H2 with high purity. One drawback of electrolysis is the low efficiency. In this study, a rice straw natural surfactant was utilized to improve the efficiency. Rice straw with the volume of 5 ml, 10 ml, dan 15 ml were added to the electrolyte solution. This study shows the rice straw based natural surfactant contains hydrophilic and hydrophobic sides. Both sides capable to reduce the surface tension of the solution which destabilizes water molecules. The aromatic magnetic field of rice straw surfactant homogenizes the water net dipole moment due to the diamagnetism of water. These contributes towards the weakened hydrogen bond of the water in the solution. The synergy between hydrophobic and hydrophilic sides is potent to alter hydrogen production rate through intrinsic magnetism.

This study aims to determine the effect of adding methanol as an additive to biodiesel to the spray angle on the diesel fuel injector. The material used in this study was palm oil biodiesel and added methanol with a concentration variation of 5%; 10%; 15%; 20% and 25% of the volume of the mixture (500 mL). The first step is mixing methanol and biodiesel according to the variables (B100; B100M5; B100M10; B100M15; B100M20 and B100M25). Next, the mixture is injected into the simulation of the combustion chamber through the injector nozzle, then the fuel that enters the simulation of the combustion chamber is recorded with a high-speed camera so that an image of the spray angle is obtained. Based on the method that has been carried out, it is found that the addition of variations in the concentration of methanol has an effect on the fuel spray angle. The higher the concentration of methanol added to biodiesel, the greater the spray angle of the fuel mixture. Spray angle for B100; B100M5; B100M10; B100M15; B100M20 and B100M25 are 7.5018o; 10.4018o; 11.8462o; 13.6052o; 14.0148o; and 14.6206o, approximately. This is because with the addition of methanol with higher levels, the mass of oxygen gas will be even greater. The greater the mass of oxygen in the fuel, the easier it is for the fuel to burn.

Employee turnover is challenging for firms, and it is usually fueled by employee stress due to their heavy workload. To minimize turnover, firms can implement various initiatives, such as employee well-being and employee engagement programs. Previous studies have examined the influence of work stress, employee engagement, or employee well-being separately on turnover intention. By exploring these factors simultaneously, this study aims to explain the roles of employee well-being and engagement as mediators in alleviating the impact of work stress on turnover. Data were collected from 425 employees working in various economic sectors (e.g., finance, education, research and development, retail, and business) in Indonesia and analyzed using the structural equation modeling (SEM) with the Lisrel 8.8 software. The results confirmed that work stress and employee engagement are factors that can directly influence turnover intention. Nevertheless, employee well-being does not have a direct impact on reducing turnover. The role of employee engagement in mediating the impact of work stress and employee well-being on turnover intention has been proven to be significant. This indicates that the company can withstand the stress that leads to employee turnover by creating jobs that make employees enthusiastically enjoy their work. Furthermore, company initiatives to create employee well-being will only be effective if those initiatives encourage employee engagement. Based on these findings, companies can develop strategies to reduce employee turnover. This can be achieved by prioritizing work stress management and improving employee well-being and engagement.

The need for food is very important for human survival. Therefore, food prices have a very big influence. Several factors cause unstable food prices, including increased demand during major holidays, and seasonal or weather factors that result in crop failure. Because of these factors, price increases can occur at any time and have an impact on society if prices rise unexpectedly. Based on these problems, a system was designed to predict food prices using the Iconix system development method, and to calculate price predictions using the Least Square method. In this system, analysis and system design is carried out to predict food prices. The predicted food ingredients will be limited to ten food ingredients, namely rice, shallots, garlic, red chilies, cayenne peppers, beef, chicken, granulated sugar, cooking oil and purebred chicken eggs. The process design used to describe information systems is the design of system flow diagrams, use case diagrams, sequence diagrams, activity diagrams. Black Box testing provides results that each feature in the food price prediction system has been successfully created and functions well.

Computational thinking is an essential 21st-century skill that all youth should develop in order to navigate and succeed in an increasingly computational world. For all youth to have hands-on opportunities to develop essential computational thinking skills, libraries and informal learning environments play a critical role. This is especially true for youth who attend schools where computational learning opportunities are limited or altogether absent. This article presents an analysis of responses from 59 library staff members to the following questions: What is computational thinking? How is computational thinking being facilitated in libraries? And, what are the goals of the computational thinking programs being offered by libraries? The analysis reveals the multifaceted ways that library staff conceptualize computational thinking and the range of ways computational thinking is being integrated into library programs. This work advances our understanding of the current state of computational thinking in libraries. In doing so, we seek to guide library staff on ways to support the computational thinking learning that is currently happening and create new ways to help bring the powerful ideas of computing to broader audiences.