Quantitative Analysis Techniques Research Articles

Pengembangan Media Video Pembelajaran Mata Pelajaran Pendidikan Jasmani, Olahraga dan Kesehatan Kelas X SMA

Analysis of the learning process shows several obstacles, including the use of suboptimal learning media, students' difficulties in mastering the material, and time limitations. Therefore, this study aims to develop video media as an effort to overcome these obstacles. This type of research is development research known as Research and Development (R&D) with a 4-D development model. This study uses quantitative data analysis techniques. The data used is the data from validation by one material expert and two media experts. The practicality test was carried out to 30 students of SMAN 1 Suliki District as many as 30 students in class X to test the practicality of the learning video products developed. The results of the material validation test showed an average of 4.86 categorized as "very valid", the results of the validation of two media experts in a row obtained an average score of 4.93 and 4.79 categorized as "Very Valid". Furthermore, the results of the product practicality test carried out are in the "practical" category for use with an average score of 4.36. Based on the results of the validity test and practicality test, it can be concluded that the learning video product developed is valid and practical and can be used in the learning process

Internal structure validation of a teacher autonomy scale through confirmatory factor analysis

Purpose: Teacher autonomy is defined as the freedom of teachers to organize the learning and teaching process at school. The teaching autonomy scale measures teacher autonomy (Pearson & Hall, 1993). This study was conducted to identify whether the measuring instrument of teacher autonomy meets the validity and reliability requirements of a measuring instrument. Method: The number of respondents in this study was obtained using a proportional sampling technique involving 170 respondents. The teacher autonomy measuring instrument produced from this study consists of 17 items that measure two dimensions; curriculum autonomy and general teaching autonomy. The quantitative data analysis techniques used were content-based validity tests through CVR and readability tests, validity evidence based on internal structure through CFA, and reliability tests based on homogeneity (internal consistency) through CR and AVE. Result: Shows CVR value with a minimum value of 0.78; loading factor ≥ 0.4, except for item 7 and item 8, as well as fit model fit with RMSEA = 0,077; RMR = 0,030; GFI = 0,847; CFI = 0,858; TLI = 0,797; NFI = 0,805; and p-value < 0.05. reliability test through CR value (0.944) > 0.7 and AVE (0.544) > 0.4. Conclusion: The adaptation of the teacher autonomy measurement tool for female junior high school teachers met good validity and reliability values.

Validity of Problem Based Learning Oriented E-LAPD to Improve Chemical Literacy Skills of High School Students

This study aims to produce valid Problem Based Learning (PBL) oriented E-LAPD to improve students' chemical literacy skills on acid-base material. This research method used development research with the 4D model which includes define, design, develop, and disseminate. However, it is limited to the development stage. The subjects of this study were phase F students of class XI SMAN 1 Krembung Sidoarjo as many as 36 students. The research instrument used in collecting data was a validation sheet. Data analysis techniques in this study used quantitative analysis techniques through the provision of validation questionnaires to validators. The results of this study indicated that the Problem Based Learning (PBL) oriented E-LAPD to improve students' chemical literacy skills on acid-base material was declared feasible to use because it got a mode score of 4 with valid criteria based on content and construct validity which includes aspects of language, presentation, and graphics.

Development of Interactive E-Module Based Android on Salt Hydrolysis Material to Improve High Order Thinking Skills

This study aims to develop a valid and feasible Android-based interactive e-module on the subject of salt hydrolysis to improve High order thinking skills of students. The research method used is Research and Development (R&D) with the ADDIE model. The research instrument is a validation test questionnaire and feasibility test with qualitative and quantitative data analysis techniques. The results of the expert validation test obtained an average value of 81.85% with Good criteria and in the feasibility test obtained an average value of 88.18% with Good criteria. So that the interactive android-based e-module on the material of salt hydrolysis to improve High order thinking skills is feasible and practical to use in learning.

Gender Differences in Request Strategies among Graduate Students

Proficiency in request strategies is key in handling social hierarchies and managing interpersonal communication. It is also essential in reducing misunderstandings and enhancing communication efficiency in both educational and professional settings. This quantitative survey investigated the request strategies employed by graduate students in different hierarchical contexts. The sample population consisted of 100 B.Ed. (Bachelor of Education) major English students from ten campuses affiliated to Tribhuvan University (TU). The sample was selected employing stratified simple random sampling method. The data were collected using a structured questionnaire with nine closed-ended questions in the year 2081 BS. The data were analyzed using descriptive statistics technique of quantitative data analysis. The result revealed distinct patterns in request strategies when addressing individuals of varying ranks. In higher-to-lower rank scenarios, male respondents predominantly used mood derivable strategies, while females showed a preference for performatives and hedge performatives. For equal-to-equal rank situations, males favored direct mood derivable strategies, while females used a more varied approach with higher incidences of indirect strategies. In lower-to-higher rank contexts, males again showed a preference for direct approaches, whereas females exhibited a higher use of indirect and polite strategies. These findings highlight significant gender-based differences in communication strategies which emphasize the need for personalized approaches in educational and professional settings.

Intellectual Capital and Company Performance with Innovation as Mediation Variables

This study aims to examine the correlation between intellectual capital, innovation, and corporate performance in micro, small, and medium enterprises (MSMEs) located in East Java, Indonesia. The proxy for each variable uses a Likert scale measurement by distributing questionnaires to MSME actors. The research sample consisted of 125 MSME actors who completed a returned questionnaire, whereas the study population consisted of 500 MSME company players. The PLS 3 software program is used in the quantitative descriptive data analysis technique. The findings demonstrated that innovation has a major impact on business success and that intellectual capital has a considerable impact on both. Additionally, innovation mediates the relationship between intellectual capital and business performance. Increased innovation will eventually lead to improved company performance if the intellectual capital developed by MSME business actors is more focused on innovation. Specifically the speed and quality of innovation, such as creating new and high-quality products, high-quality services, and problem-solving strategies that are also more accurate than those of other companies. This research contributes to the implications of intellectual capital in the business world which can be carried out early on, in the sense that even though companies are on a micro scale, MSME business actors can manage intellectual capital well in creating company performance. Keywords: intellectual capital, innovation, company performance, MSMEs

Multiplexed SERS Detection of Serum Cardiac Markers Using Plasmonic Metasurfaces.

Surface-enhanced Raman spectroscopy (SERS) possesses exquisite molecular-specific properties with single-molecule sensitivity. Yet, translation of SERS into a quantitative analysis technique remains elusive owing to considerable fluctuation of the SERS intensity, which can be ascribed to the SERS uncertainty principle, a tradeoff between "reproducibility" and "enhancement". To provide a potential solution, herein, an integrated multiplexed SERS biosensing strategy is proposed, which features two distinct advantages. First, a subwavelength-structured plasmonic metasurface consisting of alternately stacked metal-dielectric pyramidal meta-atoms is fabricated and could provide simultaneously enhanced electric and magnetic fields to enable spatially extended and weakly wavelength-dependent SERS. Second, nanomechanical perturbations are harnessed to transduce signals in the form of SERS frequency shifts, which are not directly affected by the SERS uncertainty principle. By also employing 3D printing methods, a proof-of-concept study of multiplexed detection of a panel of serum cardiac biomarkers for acute myocardial infarction is provided. Success in the development of both the electric and magnetic fields-active plasmonic metasurfaces could transform future designs of SERS substrates with newly endowed functionalities, and frequency shift-based SERS multiplexing could open new opportunities to develop innovative quantitative optical techniques for applications in chemistry, biology, and medicine.

Development of Local Culture-Based Image Media to Improve Student Learning Outcomes on the Material of Arithmetic Operations of Multiplication of Natural Numbers

The aim of this research is to develop Image Media learning media to calculate the multiplication of natural numbers for class II students at SDN Tejamari, Baros District. This research uses the type of research and development (R&D) from S. Thiagarajan's development model, which has 4 stages of development, namely defining, designing, developing and disseminating. The media developed is validated by material experts and media experts before conducting initial field trials on students. Data was collected using questionnaires from media experts, material experts, class II teacher questionnaires, student questionnaires, interview observations and documentation. Data resulting from research were analyzed using quantitative and qualitative analysis techniques. Based on the validation results, material experts got a score of 46 with a percentage of 83% with the criteria "Good", validation from media experts with a score of 44 with a percentage of 88% with the criteria "Very Good", and the results of class II teacher validation with a score of 99 with a percentage 94% with "Very Good" criteria. As for the results of the initial field trials, the percentage was 90% - 100% with the criteria "Very Good". Overall, the learning media Image Media is suitable for use by making it easier to calculate multiplication of natural numbers by students who have difficulty calculating multiplication using direct observation. This image media makes it easier for students to learn multiplication. Based on the results of the Pre-Test before using image media and the Post-Test using image media, the average score was 0.898 with high criteria. And obtained an N-Gain percentage score of 89.833 in the effective category. So, the learning media Image Media has been effectively used for students in improving learning outcomes for the arithmetic operation of multiplying natural numbers.

The Influence of Audit Tenure, Audit Rotation, Public Accounting Firm Size, and Audit Opinion on Audit Quality (Study of Large Trading Companies Listed on the Indonesian Stock Exchange)

The purpose of this study was to examine the Influence of audit tenure, audit rotation, size of the public accounting firm (KAP), and audit opinion on audit quality. This research data analysis method uses quantitative analysis techniques and purposive sampling, namely determining the research sample using 20 out of 47 samples of large trading companies listed on the Indonesia Stock Exchange (BEI) in the period 2020 to 2022. The method used is logistic regression. Data analysis to test the hypothesis was done by using multiple regression tests. The results of the logistic regression test show that (1) audit tenure has no significant influence on audit quality. (2) audit rotation has no significant influence on audit quality, (3) the size of the public accounting firm has no significant influence on audit quality. (4) audit opinion positively and significantly influences audit quality.

Enhanced colorimetric analysis substrate based on graphene oxide open-close actuator

Traditional colorimetric sensors often suffer from low color resolution and insufficient sensitivity. Therefore, for colorimetric detection to serve as a reliable quantitative analysis technique, an enhanced substrate with high sensitivity and repeatability is required. This strategy employs an interfacial network constructed between two-dimensional graphene oxide (GO) lamellar structures to create a substrate for colorimetric analysis. Under normal conditions, the newly synthesized GO inhibits oxidative activity due to van der Waals forces between the lamellar interfaces, resulting in the GO actuator being in the closed state. During Ag+ colorimetric analysis, the GO interlayer adsorption of silver nanoparticles (AgNPs) disrupts the interlayer van der Waals forces, releasing its oxidase activity and significantly enhancing Ag+ oxidation. The resulting actuator exhibits a faster driving speed (0.045 μM/s), excellent sensitivity, and stability. Additionally, the reducing properties of dopamine (DA) can be utilized to encapsulate the GO actuator with polydopamine, closing the GO actuator. Similarly, the reducing property of ascorbic acid (AA) can be utilized to restore the GO actuator to a closed state. These distinct reduction mechanisms allow for an effective visual distinction between AA and DA. With these advantages, the actuator can be developed into simple analytical tools (such as Ag+ colorimetric test strips and DA and AA test kits), demonstrating significant potential for practical application.

Identification of compounds from Origanum compactum and Origanum elongatum using HPLC/UV-ESI-MS and comparative analysis of their antioxidant, antimicrobial, anticoagulant, and antidiabetic properties

The aim was to assess the phytochemical composition, phenolic component levels, and biological properties of the flowering tops of Origanum compactum and Origanum elongatum. The study employed phytochemical assays, spectrophotometric techniques for quantitative analysis of polyphenols, flavonoids, and tannins, and compound identification using HPLC/UV-ESI-MS. The antimicrobial, antioxidant, anticoagulant, and antidiabetic properties were examined both in vitro and in vivo. The results showed that the O. compactum extract had significantly high levels of total polyphenols, measuring 47.368 mg gallic acid equivalents per gram, and flavonoids, measuring 14.839 mg quercetin equivalents per gram. The phytochemical examination of O. compactum revealed that lithospermic acid accounted for 36.82 % of the chemicals detected, followed by salvianolic acid C at 12.57 % and ros-marinic acid at 6.01 %. The main constituents of O. elongatum are salvianolic acid C (14.46 %), luteolin-3-O-glucuronide (13.51 %), salvianolic acid B (12.24 %), rosmarinic acid (7.83 %), and rutin (6.18 %). The results demonstrated different levels of effectiveness against the investigated microorganisms, with the extract from O. compactum exhibiting better activity, particularly against Gram-negative bacteria, certain yeasts, and the fungus Aspergillus niger. The aqueous extracts of both Origanum species demonstrate significant antioxidant activity. O. compactum has a higher total antioxidant capacity (IC50 of 35.083 μg/mL) compared to O. elongatum (IC50 of 77.080 μg/mL). However, O. elongatum has a higher reducing power (35.697 μg/mL) compared to O. compactum (42.563 μg/mL). In vivo evaluations revealed that the aqueous extracts of O. compactum and O. elongatum possess significant antihyperglycemic and anticoagulant properties. The extracts demonstrated a marked reduction in blood glucose levels during the oral glucose tolerance test (OGTT) in Wistar rats and effectively prolonged both prothrombin time (PT) and activated partial thromboplastin time (aPTT), highlighting their ability to inhibit coagulation pathways. Moreover, their comparable efficacy to standard antihyperglycemic medications and absence of severe toxicity, even at high doses, underscore their therapeutic potential for safe and effective treatment applications. Between the two species, O. compactum exhibited superior efficacy in key biological activities such as antioxidant, antimicrobial, and anticoagulant properties, making it a strong candidate for therapeutic applications. This study underscores the value of Origanum species as a rich source of bioactive compounds, offering significant potential in pharmaceuticals, nutraceuticals, and agri-food industries. The findings pave the way for further exploration of their diverse applications.

Development of Static Fluid Demonstrators: Hydraulic Bridge to Improve Laboratory Skills

Abstract This research aims to develop a hydraulic bridge as a static fluid material prop. The development of these teaching aids focuses on improving students’ laboratory skills. This research is based on the need for students to have practical experience in the laboratory. This developed hydraulic bridge prop is expected to strengthen mastery of concepts in static fluid materials and improve students’ laboratory skills. The research method used is research and development with the resulting product in the form of hydraulic bridge props. Quantitative analysis techniques are used to measure the feasibility and effectiveness of teaching aids that have been developed, as well as to improve students’ laboratory skills. The results showed that the hydraulic bridge trainers that have been developed have excellent feasibility and effectiveness. The results showed a positive relationship between using hydraulic bridge props and improving student laboratory capabilities. The interactive nature of the developed teaching aids enhances technical abilities and fosters students’ critical thinking, problem-solving, and teamwork skills. This study concluded that the teaching aids in the form of hydraulic bridges that had been developed proved feasible and effective and were able to improve students’ laboratory skills. The implications of this research extend to curriculum improvement and advocating for the integration of practical teaching aids, such as hydraulic bridges, to optimize student learning outcomes. Future directions include improving the implementation of hydraulic bridges across engineering disciplines and conducting longitudinal studies to assess its long-term impact on student’s academic and professional development.

Kiwi-Inspired Rational Nanoarchitecture with Intensified and Discrete Magneto-Fluorescent Functionalities for Ultrasensitive Point-of-Care Immunoassay.

Fluorescent lateral flow immunoassays (FLFIA) is a well-established rapid detection technique for quantitative analysis. However, achieving accurate analysis of biomarkers at the pg mL-1 level using FLFIA still poses challenges. Herein, an ultrasensitive FLFIA platform is reported utilizing a kiwi-type magneto-fluorescent silica nanohybrid (designated as MFS) that serves as both a target-enrichment substrate and an optical signal enhancement label. The spatially-layered architecture comprises a Fe3O4 core, an endocarp-fibers like dendritic mesoporous silica, seed-like quantum dots, and a kiwi-flesh like silica matrix. The MFS demonstrates heightened fluorescence brightness, swift magnetic response, excellent size uniformity, and dispersibility in water. Through liquid-phase capturing and fluorescence-enhanced signal amplification, as well as magnetic-enrichment sample amplification and magnetic-separation noise reduction, the MFS-based FLFIA is successfully applied to the detection of cardiac troponin I that achieved a limit of detection at 8.4 pg mL-1, tens of times lower than those of previously published fluorescent and colorimetric lateral flow immunoassays. This work offers insights into the strategic design of magneto-fluorescent synergetic signal amplification on LFIA platform and underscores their prospects in high-sensitive rapid and on-site diagnosis of biomarkers.

Nanoscale Os isotopic quantification of Wadi Tayin dunite platinum group minerals by atom probe tomography

Serpentinites record processes that redistribute major and trace elements between mantle and crust. Platinum Group Elements (PGEs) are trace elements in serpentinites hosted in sulphides and alloys. Alloys are challenging to find, and most analytical techniques lack the spatial resolution to analyse them; hence, this research adopts automatic mineral mapping technique to detect PGM grains in a sample from the Wadi Tayin (Oman) peridotite and uses atom probe tomography, a nanoscale quantitative analytical technique, to analyse the grain. This work applies and assesses the applicability of atom probe tomography to measure the 187Os/188Os isotopic ratio of natural alloys and uses the ratio to constrain the source of Os. A novel algorithm is used to automatically determine the number of counts of the 187Os and 188Os peaks, to calculate the isotopic 187Os/188Os ratio and the analytical uncertainty. The 187Os/188Os ratio is 0.126 ± 0.003, consistent with the isotopic composition reported by literature in the dunite of the Main Mantle Section of the Wadi Tayin ophiolite.The analytical uncertainty is one order of magnitude higher than conventional bulk rock techniques, such as negative-thermal ionisation mass spectrometry (N-TIMS) and inductively coupled plasma mass spectrometry (ICP-MS). However, the precision is sufficient to conclude that the non-radiogenic 187Os/188Os ratio is compatible with a mantle origin for the alloy. Decreasing whole-rock Re with increasing LOI and the overprinting of magmatic pentlandite by magnetite demonstrate that progressive serpentinisation may have modified the Re budget. The results indicate that atom probe tomography can analyse 187Os/188Os ratio quantitatively in micron-sized natural alloys and provide insights into natural processes.

ENHANCING SOFT SKILLS IN TEACHING ENGLISH: A STUDY UTILIZING PADLET APPLICATION AMONG STUDENTS

This research aims to examine the efficacy of utilizing the Padlet application to enhance soft skills in English as a Foreign Language (EFL) education among students at International Information Technology University. Soft skills, such as communication, collaboration, critical thinking, and creativity, are crucial competencies for students navigating the globalized workforce. Technology integration in education has become increasingly important, and Padlet provides a versatile platform for collaborative learning and content sharing. This study adopts a quantitative approach, employing a pre/post-observation design to evaluate the influence of Padlet usage on the development of soft skills among EFL students. Participants are randomly assigned to either an experimental group, engaging with Padlet activities, or a control group receiving traditional instruction. Validated instrument, including performance evaluations, are used to measure soft skills before and after the intervention. Quantitative data analysis techniques are utilized to compare mean scores between groups and assess the effectiveness of Padlet in fostering soft skills. Expected outcomes encompass improvements in communication clarity, increased collaboration in group tasks, enhanced critical thinking through information synthesis, and greater creativity in idea generation. The findings of this study hold implications for EFL educators seeking innovative approaches to skill development and for institutions aiming to effectively integrate technology into language education. By exploring the role of Padlet in enhancing soft skills within the specific context of EFL education at International Information Technology University, this research contributes to a deeper understanding of technology-supported learning and its impact on student outcomes.

Organizational Culture Change and Adaptation in the Face of Digital Transformation: A Study of Jambi’s Banking Sector

The advent of digital transformation has necessitated significant changes in organizational culture and adaptation strategies, especially within the banking sector. This study aims to examine the impact of digital transformation on organizational culture change and adaptation within the banking sector in Jambi, Indonesia. A mixed-methods approach was employed, incorporating both qualitative and quantitative data collection and analysis techniques. Semi-structured interviews were conducted with key stakeholders within the banking sector in Jambi, including bank managers, employees, and customers. Additionally, a survey was administered to a larger sample of bank employees to gather quantitative data on their perceptions of organizational culture change and adaptation in the face of digital transformation. The findings of this study indicate that digital transformation has had a profound impact on organizational culture change and adaptation within the banking sector in Jambi. The study revealed that banks that were successful in adapting to digital transformation were those that had a strong culture of innovation, collaboration, and customer-centricity. These banks were also more likely to have invested in employee training and development programs to equip their workforce with the necessary skills to navigate the digital landscape. In conclusion, this study provides valuable insights into the challenges and opportunities associated with organizational culture change and adaptation in the face of digital transformation within the banking sector. Additionally, investing in employee training and development is crucial for ensuring that the workforce is equipped with the necessary skills to thrive in the digital era.

Enhancing Environmental Literacy in Aceh’s Tourism through an Ethnoecotourism Based Environmental Education Model

Trends in tourism motives include socio-cultural, customs, environment, and panorama, as well as economics and welfare. However, the implementation of tourism will undoubtedly be disrupted by management and development that are not founded on the principles of sustainability. Therefore, through the process of environmental education, preventative and awareness initiatives are required. The main objective of this research was to examine the effectiveness of an ethnoecotourism-based environmental education model for tourism actors in Aceh Province. This model was developed to increase environmental literacy in marine tourism management. Model trials were carried out in the Sabang City Marine Tourism Area. The participants of this research were tourism actors in Aceh Province. The research design uses a quasi-experimental method consisting of pretest-posttest groups and uses multiple-choice questions as a research tool. The data analysis technique applied in this research was quantitative descriptive analysis techniques, in which data were processed inductively using an interactive analysis model. It is known that this model could improve the environmental literacy skills of tourism actors at the research location. It was shown by the significant value obtained at p = 0.000 (< 0.05), where there was a difference in students’ scores after being given the learning process, with the average post-test score of 12.43, higher than the pretest score of 8.40, which means there was an increase in understanding of environmental literacy after being given a learning process using an ethnoecotourism-based environmental education model.

Navigating OpenDOAR Distribution: A Deep Dive into Predictive Modeling and Trend Forecasting

Effective navigation and strategic foresight are imperative in the dynamic realm of academic repositories. This study aims to comprehensively understand global scholarly communication dynamics by analyzing repository distribution and forecasting future trends using predictive modeling methodologies. Employing a mixed-methods approach, this research blends quantitative analysis and predictive modeling techniques. It encompasses phases such as distribution analysis of repositories across continents, examination of repository counts across countries using GeoPandas and Matplotlib, optimization of Long short-term memory (LSTM) networks, application of Random Forest Regressor models, and time series analysis using Autoregressive Integrated Moving Average (ARIMA) models. The study reveals profound disparities in repository counts across continents, reflecting variations in research infrastructure. Visualizations vividly depict geographical patterns and disparities in repository distribution. Predictive modeling techniques offer insights into future trends in repository development, empowering decision-makers with strategic insights. While this study provides valuable insights, limitations exist, such as the scope limited to OpenDOAR repositories and the need for further refinement in predictive modeling techniques; future research should explore additional factors influencing repository development.

Using Social Media among English Major Students at Hebron University, Palestine

With the increasing integration of social media into educational settings, understanding its role in the lives of students has become essential. This study explores the usage patterns and perceptions of social media among English major students at Hebron University. The study has been analysed for the second semester of 2023/2024 academic year with a sample of 100 students, 74 are females and 26 are males. They are between 18 and 22. The researchers designed a questionnaire via Google Forms. Participants were given the questionnaire electronically through WhatsApp and email. Quantitative analysis techniques were used to analyse responses. SPSS program. The study suggested some recommendations that can be used at the university. The results of this research highlight the correlation between social media use and the univerity and personal lives of English major students at Hebron University.

Students Confidence in Increasing Learning Motivation

The study shows that students' self-confidence in increasing learning motivation in physical education class VIII in participating in Physical Education learning at SMP Negeri 2 Harian in the 2023/2024 Academic Year is in the moderate category. This study was conducted at SMP Negeri 2 Harian with a total of 30 students consisting of 17 boys and 14 girls. The questionnaire items in this study were 30 statements prepared in Google Form https://forms.gle/w86uMf1yTbZntFnF6 . The data analysis technique used in this study is a quantitative descriptive analysis technique. The results of the study show that students' self-confidence in increasing learning motivation in physical education class VIII in participating in Physical Education learning at SMP Negeri 2 Harian in the 2023/2024 Academic Year is in the moderate category. The success of Physical Education learning must be supported by students who have self-confidence in participating in learning, and the results of this study state that the self-confidence of class VIII students of SMP Negeri 2 Harian in participating in Physical Education learning is in the moderate category, so teachers need to pay attention and try to improve the learning process that has been carried out, for example teaching methods that are in accordance with student interests, so that the level of student confidence increases in participating in Physical Education learning can be maintained, and even will increase.