Results Of Research Research Articles

Systematic Literature Review: Validitas Internal dan Eksternal dalam Desain Ekperimen

In experimental research must have external and internal validity in order to control secondary variables. External validity relates to the generalization of research results, while internal validity relates to the extent of the causal relationship between the independent variable and the dependent variable. Therefore, it is important to examine internal and external validity in experimental design. The method used in this study is a systematic literature review. The database used for literature search utilizes two digital libraries, namely Google Scholar and Scopus. The literature search will take place in May 2024. In order for the selected literature to be relevant, the search uses the keyword "internal external validity". The analysis technique used is a narrative method by grouping the data being explored. This research is expected to provide information related to internal and external validity in experimental design

Systematic Literature Review Analisa Faktor-faktor yang Mempengaruhi Minat Mayarakat dalam Menggunakan Layanan di Koperasi Syariah

The aim of this research is to analyze factors that can influence people's interest in using services in sharia cooperatives, where sharia cooperatives have an important role in the economy after banking. This research uses qualitative methods, using the Publish or Perish application to analyze various journals that already exist on Google Scholar. which includes behavioral research on why people choose sharia cooperatives to use the services offered by sharia cooperatives. After that, what variables are found that influence members to want to use services at sharia cooperatives and then analyzed and identified. Using the method of collecting research results based on the reasons why people are interested in choosing to use services in sharia cooperatives that are not yet available, the results of this research can be used as evaluation material and become the basis for sharia cooperatives in designing strategies with significant variables that continue to develop or progress. The results of the analysis show that factors such as trust or religiosity, social and knowledge about sharia cooperatives themselves influence people's decisions in using services at sharia cooperatives. These findings provide insight or can be used as evaluation material for cooperative managers to increase community participation in using services in cooperative institutions.

Kewenangan Notaris Melakukan Pekerjaan di Luar Wilayah Jabatan

The purpose of this research is to examine and analyze the authority of Notaries to carry out ork outside the region, including elements of unfair business competition for Notaries. and to review and analyze the authority of the Notary Supervisory Board regarding violations of unfair business competition for Notaries. Meanwhile, the research method used is Normative legal research, namely a method that uses primary legal material sources in the form of statutory regulations, legal theories and expert opinions, to analyze and draw conclusions about the problems used to test and study legal materials, hile the research results are obtained It is known that this unhealthy competition itself is related to Notaries ho carry out positions outside their area of office, such as ratifying deeds of establishment of business entities and legal entities, ratifying an agreement, stipulating an agreement. So the correlation is ith unhealthy business competition according to the provisions of Law Number 5 of 1999 concerning Prohibition of Monopolistic Practices and Unfair Business Competition, namely Article 17, and related to the authority of the Notary Supervisory Council hich carries out supervision, inspection and imposes sanctions on Notaries, and at every level The Notary Supervisory Council consists of the Regional Supervisory Council (MPD), Regional Supervisory Council (MPW); and the Central Supervisory Council (MPP), so that for violations of unfair business competition, efforts to enforce the Notary's code of ethics, namely based on Article 85 of Law Number 30 of 2004 concerning the Position of Notaries by placing a verbal arning in the first order of giving sanctions, is a arning to notary from the Supervisory Council hich if not fulfilled is followed up ith ritten sanctions. If this sanction is not complied ith by the notary concerned, subsequent sanctions can be imposed in stages.

Konsep Ekonomi Sirkular Model Circular Bisnis Circular dan Ekonomi Karbon Sirkular

This research discusses the implementation of a circular economy as a solution to reduce waste and carbon emissions. A circular economy focuses on sustainability by minimizing waste and maximizing resource use. This research uses qualitative research methods involving interviews, observation and document analysis. The research results show that implementing a circular economy can help reduce carbon emissions and increase awareness of the importance of protecting the environment. In carrying out community service, students are introduced to personal activities that support a circular economy. These activities involve presentation of material, discussions and questions and answers, as well as giving door prizes. Outcome result of this research show that implementing a circular economy can help increase students' awareness and behavior in protecting the environment.

Persepsi Wajib Pajak Terhadap Penerapan Ter PPH Pasal 21

This study aims to analyze the perceptions of taxpayers by conducting surveys using questionnaires and analyzing the perceptions of these taxpayers regarding the existence of a regulatory change in the Income Tax Law that examines the application of Income Tax Article 21 TER as the basis for calculating income tax. This research uses descriptive methods. The sampling procedure uses purposive sampling technique. The sample and population used in this study are taxpayers who have worked, taxpayers who have been registered as taxpayers, and who have paid & deposited at least once. 216 respondents were obtained. The research results of this study are (i) taxpayers have an agreed perception of the tax socialization of taxpayers on the application of Income Tax Article 21 TER (ii) taxpayers have an agreed perception of the understanding of tax regulations on the application of Income Tax Article 21 TER (iii) taxpayers have an agreed perception of taxpayer awareness of the application of Income Tax Article 21 TER.

Pengaruh Risiko Keuangan, Nilai Perusahaan dan Ukuran Perusahaan Tehadap Perataan Laba

This research aims to analyze the influence of financial risk, company value and company size on income smoothing. This research was conducted by analyzing the financial reports of companies in the Consumer Non-Cyclicals sector listed on the Indonesia Stock Exchange (BEI) during the period 2018 to 2022. The sample used in this research was 16 companies in the Consumer Non-Cyclicals sector listed on Indonesia Stock Exchange during the period 2018 to 2022 using a purposive sampling technique. The data used in this research is secondary data in the form of financial reports from each company that has been used as a research sample. Logistic regression method was used as research methodology in this study. Analysis of research results using the help of Eviews 12 software. The results of this study show that Financial Risk partially has no effect on Profit Planning, Company Value partially has no effect on Profit Smoothing, Company Size partially has an effect on Profit Planning and simultaneously Financial Risk, Company Value and Company Size influence Income Smoothing.

Research on the correlation network of carbon emissions and economic between Chinese urban agglomerations

Urban agglomerations are currently at the center of China's efforts to reduce carbon emission and sustainable economic development. It is critical to investigate the carbon emissions and economic correlation between urban agglomerations in order to assist their carbon emission reduction and economic coordinated development. This paper is based on an environmentally extended multi-regional input-output model, and studies the embodied carbon emissions and economic two-dimensional correlation network between major urban agglomerations in China from 2012 to 2017. The research results indicate that the production-based carbon emissions of the production and supply of electricity and heat industry in the Yangtze River Delta urban agglomeration were higher than the consumption-based carbon emissions, with a significant gap. However, the construction and service industries were the opposite. The Hohhot-Baotou-Ordos-Yulin urban agglomeration experienced carbon emission losses and economic benefits. The Yangtze River Delta urban agglomeration achieved a win-win situation for carbon emissions and economy. The Pearl River Delta urban agglomeration benefited from carbon emissions but suffered economic losses. The Central Plains urban agglomeration faced a loss-loss situation for carbon emissions and economy. Major urban agglomerations in China should implement differentiated emission reduction measures based on their own characteristics. For example, the Hohhot-Baotou-Ordos-Yulin urban agglomeration should utilize natural resources to develop green industries and high value added industries.

Developing a cost-predictive model for hospital construction projects

ABSTRACT Hospital construction projects require the integration of innovative technologies, making them complex and challenging to estimate accurately. Without reliable guidelines, lists of considerations, or predictive models, decision-makers may choose an unsuitable contractor, leading to cost overruns and project delays. This research used quantitative and qualitative methods, including expert opinions and focus groups, to address this issue and identify critical factors affecting cost estimation in hospital construction. Using multi-regression analysis, historical data was analyzed to establish a cost-predictive model. The study identified 24 factors that determine the most critical criteria affecting the cost estimation of hospital construction. This model can evaluate the estimated direct cost provided to decision-makers in the early stages of the project with over 95% accuracy. The research results can assist professionals in the construction industry in better estimating and managing the costs of hospital construction projects, reducing risks, and improving project outcomes. Key findings indicate that specific components such as site and electrical works show average percentage errors of 8.02% and 5.11%, respectively, highlighting areas prone to cost estimation inaccuracies. This insight directs focus on improving accuracy in these critical sectors, thus further refining cost management strategies for hospital construction projects.

Rubber compounds made of modified ethylene propylene diene monomer (EPDM) for laminated bearings with excellent anti-peel strength

In order to enhance the design life of laminated rubber bearings in the field of highway bridges in the plateau region, a novel laminated bearing was made by the modified ethylene propylene diene monomer (EPDM) rubber that combines both low-temperature and ageing resistance properties in this work. The modified EPDM also exhibit a high anti-peel strength with reinforced steel plate layer. Experimental and numerical investigations were carried out to evaluate the mechanical properties and failure conditions for the EPDM laminated bearing. The results indicate that the bearing with different shape factors exhibit good mechanical properties, and its key performance parameters such as compressive modulus and shear stiffness meet the requirements of the current specification for highway bridges. Meanwhile, we have established a quantitative relationship between the proportion of void area and the total local shear strain for EPDM laminated bearing, and found that when the proportion of void area reaches more than 32%, some of the performance indexes of the bearing will exceeds the design limit. The above research results can be used as an important criterion for evaluating the performance of modified EPDM bearings.

Numerical investigation on direct water injection characteristics under different injection and ambient conditions within oxygen/argon atmosphere

Improving efficiency and reducing emissions are essential to achieve carbon neutrality in transportation sector. The hydrogen-fueled argon power cycle (H2-APC) is a novel power system with high efficiency and zero emission by utilizing argon-oxygen mixture as working fluids. However, knock suppression is a problem within H2-APC engines. Direct water injection (DWI) is an effective method to inhibit detonation. Spray morphology greatly influences the effectiveness of DWI, the investigation of spray characteristics in oxygen/argon atmosphere is critical. This paper established a computational model based on experimental data to investigate DWI characteristics under different injection and ambient conditions within oxygen/argon atmosphere. The results reveal increased jet temperature leads to stronger superheated jet spray collapse, while Sauter mean diameter (SMD) decreases and atomization improves. Increasing jet pressure effectively reduces spray SMD and improves atomization effect and evaporation rate. Higher ambient temperature reduces ambient gas density, spray SMD and penetration are decreased and increased, respectively. Moreover, spray evaporation rate and evaporated mass are dropped with higher ambient pressure for both superheated and subcooled sprays. As ambient density rises, the capacity for jet perturbation and fragmentation is enhanced, and spray SMD decreases. The research results can provide an effective guide for the DWI strategy of H2-APC engines.

Jaranol Loaded in Ferroferric Oxide Nanoparticles Inhibits the Activities of Liver Cancer Cell Through Mitogen-Activated Protein Kinase/Extracellular Signal-Regulated Kinase Signaling Pathway

Liver cancer is highly aggressive and the MEK/ERK signaling regulates tumor cell proliferation and metastasis. Jaranol is a natural product with anti-proliferative and anti-metastatic effects in several tumors. However, its interaction with the MEK/ERK pathway in liver cancer is unclear. This study explores whether ferroferric oxide nanoparticles-loaded Jaranol inhibits proliferation and metastasis in liver cancer cell Hep3B by regulating MEK/ERK signaling, and its underlying mechanism. Fe3O4-Jaranol nanoparticles were prepared and used in Hep3B experiments to observe the biological efficacy of Fe3O4-Jaranol, and further explore its effect and mechanism on the MEK/ERK pathway using PCR, WB, etc. Fe3O4-Jaranol were successfully prepared with a certain tumor suppressor effect in liver cancer. The expression of MEK/ERK was increased in liver cancer. Inhibiting its pathway activity suppressed the development of liver cancer. Trametinib and C16-PAF were used to inhibit Hep3B respectively. MEK expression in cells treated with Trametinib was reduced accompanied by a low expression of ERK, while the expression of MEK and ERK levels in the C16-PAF group showed an opposite trend, indicating that Trametinib, C16-PAF successfully intervened on MEK and ERK. Further analysis of the activity of Hep3B cells found that the proliferation ability of the Trametinib group was significantly inhibited. Fe3O4-Jaranol significantly inhibited liver cancer cell Hep3B and this effect was accomplished by inhibiting MEK/ERK signaling, causing tumor cell proliferation to be restricted and reducing the ability to metastasize. This research result provides strong evidence for a deep understanding of the mechanism of Jaranol in treating liver cancer, so as to better guide clinical practice.

Comprehensive assessment of the water environment carrying capacity based on machine learning

Human activities and climate change are constantly threatening water environment systems. To alleviate pressure on the water environment and meet the requirements for sustainable societal development, it has become important to study the water environment carrying capacity (WECC). As science and technology have advanced, the use of artificial intelligence has penetrated various disciplines, and the application of machine learning has achieved many good results in the environmental sciences; however, little attention has been given to the WECC. To this end, a WECC assessment model was developed based on a variety of machine learning algorithms, to provide a novel approach and better understanding of the WECC. In this study, 13 natural and anthropogenic factors related to the water environment system in Liaoning Province (China) were selected, and the study period ranged from 2015 to 2019. Four basic machine learning algorithms, namely, random forest (RF), support vector machine (SVM), multilayer perceptron (MLP) and k-nearest neighbour (KNN), were used for batch modelling, and stacking was carried out based on the output results. A comparison and screening of the models revealed that RF and the stacking model had the best model prediction performances. Because RF was relatively simple and convenient, a comprehensive assessment of the regional WECC based on this algorithm was carried out. The results showed that most of the control units with an overloaded WECC are located in the central and northern regions of Liaoning Province, and the control units of overloading can be well identified and the trend of regional WECC status can be observed. To improve model transparency, we also performed an explanatory analysis based on the shapley additive explanations (SHAP). The results showed that precipitation, soil texture, sewage treatment plant, wind speed, and temperature were the most important factors influencing the water environment system. Precipitation is the most influential factor, and with increasing rainfall, the WECC first improves and then gradually deteriorates. For the anthropogenic factors, the WECC generally improves first and then worsens as these factors increase. These research results can be used to provide a powerful and practical new methodology for the comprehensive assessment of the WECC and provide a basis for the development of water environment policies and regulatory implementation in the region.

Influence of different machining methods on the surface roughness of TC4: dry milling, water-based fluid wet milling, and foam spray milling

The surface quality of workpieces is influenced by various factors, including processing parameters, processing techniques, cutting force, and cutting vibration. Many researchers have studied wet cutting to minimize milling forces and vibrations. We explore a high-density water-based foam milling method. By this method the foam is sprayed onto the surface area of tool and workpiece to absorb vibration energy. Firstly, a milling test system was established to conduct tests on TC4 titanium alloy under three different machining conditions (dry milling, water-based fluid wet milling, and foam spray milling), and the three-dimensional (3D) milling forces and milling vibrations were simultaneously recorded during the milling process, and the workpiece’s surface roughness was measured using a contact roughness measuring instrument. Then principal component analysis method was performed on the 3D milling forces and vibrations to obtain dimensionality-reduced feature values. Subsequently, multi-feature combination prediction models of surface roughness corresponding to the three machining conditions were developed using particle swarm optimization and a generalized regression neural network. Finally, the developed prediction models were compared and analyzed. The research results indicate that high-density water-based foam spray milling can effectively reduce the milling force by 70% and the milling vibration by 85% at most. Foam spray milling reduces the average roughness by up to 49%. The roughness prediction accuracy reaches 95.43%, with an error of less than 0.054 µm.

Investigation of fracture-plugging wellbore strengthening: Large scale true tri-axial experiments and field tests

Lost circulation caused by developed natural fracture occurs frequently in tight sandstone formations located in Sichuan Basin, China. Fracture-plugging wellbore strengthening by lost circulation materials (FPWSLCM) is a widely applied fluid loss control technique globally. The upper limit of the pressure-bearing capacity treated using FPWSLCM and the relevant engineering influencing factors needs to be investigated further. In this paper, a self-designed large-scale true tri-axial cell was developed to simulate the fracturing and sealing processes in a cubic sandstone sample (30cm×30cm×30cm) under anisotropic stress to investigate the effect of lost circulation materials (LCM) and the experimental processes on the formation pressure-bearing capacity. Three homogeneous cubic tight sandstone samples taken from Xujiahe Formation in Sichuan Basin with a central hole were used for the wellbore strengthening experiments with FPWSLCM, which was used to eliminate the heterogeneity effect of the rock. SRIPE (SINOPEC Research Institute of Petroleum Engineering) bridge plugging materials were used as LCM. The results show that the formation pressure-bearing capacity after treatment by FPWSLCM was affected by the initial injection pressure, the intrusion amount of LCM, the pressure holding time, and the injection rate. The formation pressure-bearing capacity did not decrease consistently with the increase of plugging zone instability times, but showed an obvious characteristic of fluctuations; the formation pressure-bearing capacity exceeded the fracturing pressure in some cases. The experimental results could be explained by the stress cage theory. Finally, the modified FPWSLCM was applied as a lost circulation control approach by drilling into the tight sandstone formation in the Shunbei oil field, which has a history of severe loss of fluid circulations. The result of the field test indicated that the modified approaches were more successful than the previous approaches used in other wells in this block. The research results are of great significance for improving the success rate of lost circulation control and a reduction in drilling costs.

An Analysis of the Transmission Content of the Dance Culture of the Jiajong Tibetan "Kasdawen" in Western Sichuan, China

Background and Aim: Cultural communication is a kind of cultural continuity that has existed since the beginning of human civilization. "Kasdawen" dance is the most distinctive folk dance of Jiarong Tibetan people in western Sichuan, China. From the initial sacrificial hunting and production activities, it has gradually evolved into a folk sacrificial singing and dancing activity in funeral rites, and festival celebrations to worship Buddha and pray for peace. Taking the Tibetan folk dance "Kasdawen" in Heishui County, west Sichuan, China as a case study, this paper analyzes the communication content from three aspects: performance ceremony, performance form, and cultural connotation. Materials and Methods: This study adopts the qualitative research method of literature method, observation method, and interview method, and analyzes the data content. Most of the literature materials come from the county cultural centers or literature and history research centers in the research area, a small part comes from the library of Aba Prefecture, Sichuan Province, China Knowledge Network, and a small part comes from the people. The interviews mainly come from folk artists and outstanding contribution dancers and observe Tibetan social life. Results: In the research results, the communication contents of the "Castaven" dance performance ceremony are mainly divided into festival ceremony and sacrifice ceremony; The communication content of the dance performance form is mainly divided into dance form, style feature, and rhythm feature. The communication content of cultural connotation is mainly divided into patrilineal culture, Wuwu dance culture, and religious belief culture. Conclusion: The dissemination of "Kasdawen" dance culture is to spread the spirit and belief of Jiarong Tibetan nationality, and it is also hoped that the dissemination of the substantive content and spiritual value of "Kasdawen" dance culture will help protect and inherit Tibetan culture.

E-commerce and Rural Women Entrepreneurship ——Based on the Quasi-Natural Experiment of “Comprehensive Demonstration Policy” for E-commerce in Rural Areas

The importance of information and communication technology in rural areas has gradually become prominent, and rural e-commerce has emerged as a crucial driver for promoting agricultural and rural development. This paper takes the comprehensive demonstration policy for e-commerce in rural areas as a quasi-natural experiment. It is based on five-period panel data from the China Family Panel Studies (CFPS) and employs the staggered difference-in-differences method to examine the impact of e-commerce on rural women entrepreneurship and its mechanisms. The research results indicate that the implementation of the comprehensive demonstration policy for e-commerce in rural areas significantly increases the probability of rural women engaging in entrepreneurship by 1.6% points. The entrepreneurial promotion effect of this demonstration policy is more pronounced for rural women in the central and western regions and those with lower educational levels, demonstrating the inclusiveness of e-commerce in rural development. Additionally, this promotion effect is also significantly influenced by marital heterogeneity. Mechanism analysis results suggest that the comprehensive demonstration policy for e-commerce in rural areas can stimulate the use of information and communication technology by rural women, leverage the crucial role of non-traditional education in skill development, alleviate financial and social capital constraints for rural women, and inspire a wave of rural women entrepreneurship. The paper argues that the construction of rural e-commerce has the potential to empower rural women entrepreneurship.

Comparing logistic regression and extreme gradient boosting on student arguments

<p>Identifying the effectiveness level and quality of students' arguments poses a challenge for teachers. This is due to the lack of techniques that can accurately assist in identifying the effectiveness and quality of students' arguments. This research aims to develop a model that can identify effectiveness categories in students' arguments. The method employed involves the logistic regression+XGBoost algorithm combined with separate implementations of term frequency-inverse document frequency (TF-IDF) and CountVectorizer. Student argument data were collected and processed using natural language processing techniques. The research results indicate that TF-IDF outperforms in identifying effectiveness classes in student arguments with an accuracy of 66.20%. The multi-output classification yielded an accuracy of 89.32% in the initial testing, which further improved to 92.34% after implementing one-hot encoding. A novel finding in this research is the superiority of TF-IDF as a technique for identifying effectiveness classes in student arguments compared to CountVectorizer. The implications of this research include the development of a model that can assist teachers in identifying the effectiveness level of students' arguments, thereby improving the quality of learning and enhancing students' argumentative competence.</p>

A Distorted Light Field Image Correction Method Based on Improved Hough Transform

Introduction: In using a camera to take photos, due to environmental limitations, uneven lighting can cause uneven distribution of the image light field, resulting in distortion of the image background and target, blurring of details, and distorted light field images. Method: In view of this, research is conducted on the correction of distorted light field images based on the Hough transform. First, the improved Hough transform is utilized to locate the four coordinates, the matrix information of the normal image is applied to calculate the corresponding parameter amount, and then the low-frequency part of the image spectrum is removed. Finally, it uses the Gaussian function for difference, inputs the original data, and gets the correction result of the distorted light field image. Result: The research results indicate that in the practical application of the distorted light field image correction algorithm based on the Hough transform, the improved Hough transform algorithm is superior to the traditional one. Conclusion: In comparative experiments, the research algorithm outperforms the other three algorithms, with an average color restoration of 93.76% and an average signal-to-noise ratio of 54.22dB. The superiority of the research algorithm has been verified, indicating that the research method can perfectly correct distorted light field images and achieve good correction results.

Application of Speech Therapy Techniques in Teaching Russian language to Spanish-speaking Students

Currently, there is an increase in Spanish-speaking students studying at Russian universities. Therefore, the problem of developing approaches, methods and means to minimize the difficulties associated with the adaptation of foreign speakers to learning remains relevant. However, issues related to the use of speech therapy techniques for teaching Russian as a foreign language remain insufficiently studied. The purpose of the study is to study the effectiveness of using speech therapy techniques to teach Russian as a foreign language to Spanish-speaking students. The article describes the practice of using speech therapy techniques when Spanish-speaking students study Russian as a foreign language, as well as the influence of this approach to teaching the Russian language on the indicators of psychological adaptation of these students. Research methods. Fifty-three Spanish-speaking first-year undergraduate students participated in the study. The students were interviewed, during which they found out their level of Russian language proficiency, as well as what difficulties they encountered while studying. During speech therapy diagnostics using the methods of T. F. Fotekova and T. V. Akhutina studied the state of the pronunciation side of speech; To study psychological adaptation, we used the scale for assessing the level of reactive and personal anxiety by Ch. D. Spielberg, Yu. L. Hanina. To correct speech pronunciation disorders, speech therapy work was carried out using the principles of universal design when building a university education system. Research results. During the diagnostics, specific auditory-pronunciation difficulties were identified among Spanish-speaking students, which negatively affected their communication with classmates and teachers and psychological adaptation. After speech therapy work, Spanish-speaking students showed an improvement in the sound pronunciation aspect of speech, foreign language phonemic hearing and rhythm and intonation design of phrases. A decrease in the level of situational anxiety was also observed. Conclusion. Speech therapy work at the stage of adaptation of Spanish-speaking students to study at a university helps to reduce auditory-pronunciation difficulties, situational anxiety, and reduce manifestations of maladjustment.

Using Special Physical Education Curriculum-Based Measurement to Improve Student Motor Development in Both General and Special Needs Population: Review of Early Research Lasting More than Five Decades

The main goal of this study is to acquaint experts in the field of education with the results of early research, which are related to the problems they face even now when it comes to sensitive groups with special needs. Previous experiences can be a good indicator of different models of action for pedagogues and managers within the modern education system. Inclusive education has become a reality faced by all participants in the process. Effective action models have been adopted in developed countries, primarily Western countries. However, in less developed countries, it is evident that the problem of inclusion is faced later, primarily due to legal regulations and the need for more funds for specific training of all participants. This issue is especially neglected when it comes to inclusion in the physical education of children with various disorders in motor development. Examples from practice in earlier research can be a good guide for overcoming various obstacles that all participants face today, both in special and inclusive physical education. Controversies are still occurring between supporters of the traditional particular education approach versus the modern, inclusive education model. A better familiarity with the issue can contribute to overcoming prejudices, which this overview study of earlier research can contribute.