The Development of RBL-STEAM Learning Design to Improve Climate Change Literacy Through the Construction of Energy-Efficient Houses in Sixth Grade of Elementary School Students

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Climate change literacy is essential for preparing future generations to understand environmental challenges and take an active role in mitigation and adaptation efforts. This study aims to enhance students’ climate change literacy through the development of Research-Based Learning (RBL) integrated with the STEAM approach, which combines Science, Technology, Engineering, Arts, and Mathematics. Students were engaged in the construction of energy-efficient house projects that incorporated simple electrical circuits, allowing them to apply scientific concepts in a meaningful context. The study employed a research and development methodology using the 4D model, which consists of the stages Define, Design, Develop, and Disseminate. The developed learning materials included lesson plans, student worksheets (LKPD), and a climate change literacy test. A sequential exploratory mixed-methods design was implemented, beginning with qualitative data collection and analysis, followed by quantitative data collection and analysis. The study was conducted at SDN Banjarwungu 2 as the experimental group and SDN Gempolklutuk as the control group. The findings indicate that the RBL-STEAM learning materials are valid, practical, and effective in improving students’ understanding of the causes, impacts, and potential solutions to climate change. The study concludes that integrating RBL-STEAM with project-based learning activities can significantly enhance climate change literacy in primary education.

Chemical synthesis and applications of Gold nanoparticles

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The range of scientific and technical uses for nanoparticles makes it evident how important nanotechnology is in today’s world. Gold nanoparticles are among the many metal nanoparticles that can be produced using a variety of methods. This review article emphasizes the fundamental methods of chemical synthesis for gold nanoparticles, exploring their production processes and diverse applications. The data for the research was gathered through a review of existing literature. The Brust-Schiffrin method is a significant approach for synthesizing gold nanoparticles (AuNPs). In this technique, two reaction pathways are employed to achieve an efficient surface reaction during the formation and growth process. AuCl4− is transferred from the aqueous phase to toluene and subsequently reduced by sodium borhydrate (NaBH4) in the presence of dodecanethiol. The adaptable surface chemistry of AuNPs enables them to be coated with small molecules, polymers, and biological recognition molecules, thus expanding their scope of use. The size of AuNPs can be regulated during synthesis and functionalization with various chemical groups. They have the ability to accumulate in tumor cells, exhibit optical scattering, and serve as probes for microscopic studies of harmful cells. Additionally, AuNPs are employed in cancer therapy and diagnosis. Furthermore, they hold significant promise in catalysis, as their surfaces facilitate interactions between reactants and the catalytically active sites on gold nanoparticles.

Assessment of the Management of Museum Storage Units at The National Museum of Tanzania: Reality and Challenges

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Museum storage units are crucial in protecting and preserving the museum’s precious collections in the most effective and efficient way. A well planned and organized storage system not only increases the level of preservation but also helps in organizing the collections it hosts (NPS Museum Handbook, 2012).  However, many museums across the globe are faced with challenges of improper and ineffective storage units hence risking the safety and security of museum objects.  As such, the museums’ essential roles and functions including research, exhibitions, conservation, acquisition and education are hampered. Based on in-house research, this paper explores the reality of collections’ storage units and systems at the national Museum of Tanzania (NMT) which has been in existence since 1940.  During data collection, methods including Museum Storage Survey Method (MSSM) and Desktop Works Method (DWM) were applied to collect information for the study.

The Influence of Patient Satisfaction and Brand Image on Patient Loyalty with Patient Trust as a Mediator at Anna Medika Hospital

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In the era of digitalization and globalization, service quality has become one of the most critical aspects of a healthcare institution’s success, such as a hospital. High patient satisfaction significantly influences repeat visit frequency when patients require further treatment. Moreover, if patients experience positive outcomes after receiving care at a hospital, it becomes their primary choice for future medical needs due to the trust and loyalty built toward the healthcare provider. This study aims to analyze the influence of patient satisfaction and brand image on patient loyalty, with patient trust as a mediating variable at Anna Medika Hospital.

This quantitative research employs Partial Least Squares Structural Equation Modeling (PLS-SEM) with a sample of 120 inpatients. Data were collected through questionnaires and analyzed using SmartPLS 4.0.

The results show that patient satisfaction and brand image significantly affect patient trust (β = 0.465 and β = 0.404, respectively). Patient trust mediates the effect of satisfaction on loyalty (β = 0.274; *p* < 0.05) but is not a significant mediator between brand image and loyalty (*p* = 0.077).

Patient trust plays a crucial role in transforming satisfaction into loyalty, while brand image directly influences loyalty without mediation by trust.

Therapeutic Promise of Natural Antioxidants in Redox Regulation

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Phytochemical research has attracted the attention of researchers in the field of biomedical and biotechnological research and explored a new era of drug discovery. Focus of these studies is to minimize or overcome the side effects of synthetic drugs.  It aims to find out the equivalent natural molecules that can replace the drugs having harmful side effects on human health.

Advances in the organic and analytical chemistry during last century offered new vision towards the phytochemical research. Investigations of various molecules through different biochemical and biophysical methods can easily reveals the structural and functional properties of the compounds and have opened the new avenues in natural drug discovery. These new techniques are more competent to isolate, characterize and analyze the active principles from these medicinal plants and other natural resources. Thus, the phytochemical research has proved to have a pivotal role in drug discovery.

The Influence of Governance and Job Satisfaction on the Performance of Husada Hospital Mediated by Employee Loyalty

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Background: Hospital performance is vital for sustaining quality healthcare services. At Husada Hospital, fluctuations in inpatient numbers and workforce trends from 2019 to 2024 underscore the need to understand how governance and job satisfaction influence performance. Employee loyalty may play a key mediating role, yet this relationship remains underexplored.

Objective: This study aims to analyze the effects of governance and job satisfaction on hospital performance, and to assess the mediating role of employee loyalty in these relationships.

Methods: This quantitative study was conducted at Husada Hospital, Jakarta, from June 9–13, 2025, involving 160 employees selected through proportionate stratified random sampling. Data were collected using Likert-scale questionnaires and analyzed using Structural Equation Modeling–Partial Least Squares (SEM-PLS) via SMARTPLS to assess direct and mediated relationships among governance, job satisfaction, employee loyalty, and hospital performance.

Results: PLS-SEM analysis showed that governance and job satisfaction significantly influenced employee loyalty (R² = 0.580) and hospital performance (R² = 0.413). Employee loyalty had the strongest direct effect on performance (β = 0.642) and significantly mediated the effects of both governance and job satisfaction, highlighting its key role in improving hospital outcomes.

Conclusion: Governance and job satisfaction significantly influence employee loyalty, which plays a key role in enhancing hospital performance. Job satisfaction had the strongest effect on loyalty, while loyalty emerged as the most dominant predictor of performance. Loyalty also mediated the effects of governance and job satisfaction on performance, confirming its central role in linking internal organizational factors to hospital outcomes.

Assessing Consumer Perceptions and Intentions Toward Plant-Based Meat: Scale Development and Exploration

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This paper introduces a comprehensive multidimensional scale designed to assess consumer perceptions and intentions regarding plant-based meat (PBM) products. In light of the global shift toward sustainable food choices, this study addresses the need for a holistic instrument to gauge various facets of PBM adoption. The scale comprises five core dimensions: (1) Perceived Benefits of PBM, encompassing health, environmental, and ethical considerations; (2) Perceived Barriers to PBM, encompassing concerns related to taste, protein content, texture, price, and sustainability; (3) Consumer Attitudes Toward PBM, reflecting sensory experiences and perceived similarity to traditional meat; (4) Awareness of PBM, assessing knowledge of PBM existence and prior consumption; and (5) Purchasing Intentions of PBM, measuring intentions based on factors such as taste, health benefits, sustainability, price, labeling, and positioning.

The exploratory factor analysis (EFA) findings indicate that the multidimensional scale effectively captures the intricate nature of consumer perceptions regarding PBM. Notably, consumer attitudes toward PBM are influenced by sensory experiences and perceived product similarity to traditional meat. Additionally, perceived benefits, including health, environmental sustainability, and ethical considerations, significantly influence consumer attitudes and purchasing intentions. Conversely, perceived barriers, encompassing concerns about taste, protein content, and price, may present obstacles to PBM adoption. The scale’s dimensions offer practical implications for marketers, policymakers, and scholars. Marketers can tailor their product positioning to emphasize factors such as taste, health benefits, and sustainability. Policymakers can design effective public health campaigns and policies to promote sustainable and healthier dietary choices. Scholars can utilize the scale to conduct in-depth research on PBM adoption, enabling cross-cultural comparisons, longitudinal studies, and intervention assessments.

The Influence of Salesforce Management Systems on the Orientation, Support Beliefs, and Capabilities of Account Managers at PT. Hilti Nusantara

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Digital transformation in the construction sector can be a major catalyst for increasing productivity. Since 2023, Hilti Nusantara has adopted the use of Customer Relationship Management (CRM) from the previous BYD system to Salesforce with the aim of overcoming challenges in improving the operational efficiency of account managers and also deepening customer relationship management in the construction world. The use of Salesforce has not yet been implemented optimally, as the actual target for account managers of four customer visits per day has only reached an average of 2.6 visits per day. This study aims to conduct an in-depth analysis of the impact of Salesforce implementation at PT. Hilti Nusantara, as well as how these factors influence account manager performance. This study uses a survey method to collect data through a questionnaire. Sampling was conducted using a non-probability method with a purposive sampling approach. The sample in this study consisted of 51 respondents who are account managers at Hilti Nusantara. This study uses SPSS 26 application as an auxiliary tool.

The Effect of the PBL Model with SALACCA Media (Snakes and Ladders with QR Code Cards) on Learning Outcomes and Critical Thinking Skills of Elementary School Students

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The problems that occur at Kunir Lor 01 State Elementary School in Pancasila Education learning are that students’ learning outcomes are not optimal, students’ critical thinking skills tend to be weak, teachers are the center of learning, teaching materials only use textbooks, and the use of learning models and media that are less innovative. Therefore, this study aims to examine the effect of the PBL model with SALACCA (Snakes and Ladders with QR Code Cards) media to improve learning outcomes and critical thinking skills in elementary school students. This type of research is an experimental study (True Experimental) using a Pretest-Posttest Control Group Design. The data analysis method used t-test or independent samples test with SPSS 27 software for windows. The results of the data analysis of the learning outcomes and critical thinking skills of the experimental class students showed higher than the average value of the control class. This is reinforced by the calculation of the hypothesis test which states that the students’ learning outcomes obtained a significance value (2-tailed) of 0.002 and the critical thinking skills obtained a significance value (2-tailed) of 0.001 so that both are less than 0.05, it is proven that there is a difference between the average learning outcomes and critical thinking skills of the experimental class students and the control class. Thus, it can be concluded that the PBL model with SALACCA media has a significant effect on the learning outcomes and critical thinking skills of students in Elementary School.

GC-MS, FTIR, and HPLC analysis of Trichoderma sps, Rhizopus sps, and Aspergillus sps of Saraca asoca for anticancer molecules

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Endophytic fungi combined with medicinal plants are reservoirs of therapeutic compounds. These endophytes are considered one of the major sources of bioactive molecules used in different aspects of health care. The present study attempted to assess the possibility of using the endophytic extract. The study showed a complete endophytic extract by using the GC–MS profile, indicating the presence of different volatile molecules in the endophytic extract. The HPLC fingerprint of S. asoca endophytic extract represents the characteristic markers of this herb. The endophytic extract’s HPLC showed caffeine, a Ret Time [min]- 3.052, and a Width [min]- 0.1322. The FTIR analysis of the functional groups present in the Trichoderma sps are =C-H (Alkynes, Amides), O-H (Carboxylic acids), C=C(Alkynes), C=C (Aromatic compounds), C-F (Alkyl and Aryl Halides). These functional groups are used in the production of antibiotics and antifungal drugs. The GC-MS study of the endophytic extract showed the presence of 59 compounds, which possessed anticancer properties. The anticancer activity was studied further.