Practical Model Research Articles

Centroidal Clustering of Noisy Observations by Using r th Power Distortion Measures.

We consider the problem of clustering a dataset through multiple noisy observations of its members. The goal is to obtain a clustering that is as faithful to the clustering of the original dataset as possible. We propose a centroidal approach whose distortion measure is the sum of r th powers of the distances between the cluster center and the noisy observations. For r=2 , our scheme boils down to the well-known approach of clustering the average of noisy samples. First, we provide a mathematical analysis of our clustering scheme. In particular, we find formulas for the average distortion and the spatial distribution of the cluster centers in the asymptotic regime where the number of centers is large. We then provide an algorithm to numerically optimize the cluster centers in the finite regime. We extend our method to automatically assign weights to noisy observations. Finally, we show that for various practical noise models, with a suitable choice of r , our algorithms can outperform several other existing techniques over various datasets.

Developing and validating a prediction model of live birth in patients with moderate-to-severe intrauterine adhesions: a new approach with endometrial morphology measurement by 3D transvaginal ultrasound.

There is no reliable method to predict the live birth rate among patients with moderate-to-severe intrauterine adhesions (IUA) after second-look hysteroscopy. Therefore, we aimed to construct a practical prediction model mainly based on the features of 3D transvaginal ultrasound (3D-TVUS). and other clinical characteristics. From January 2018 to February 2020, a total of 870 IUA patients with fertility requirements were retrospectively enrolled based on the same method. First, the predictors were screened by logistic regression analysis. A nomogram was constructed based on the screened predictive factors in the derivation cohort. Next, receiver operating characteristic (ROC), calibration curve, and decision curve analysis (DCA) were used to assess the predictive accuracy and discriminability of the model. Finally, correlation analysis was performed to analyze the correlation between the results of 3D-TVUS and second-look hysteroscopy. A total of 558 (64.14%) participants had live births. Age, endometrial thickness, assisted reproductive technology, a homogeneous endometrial echo, a lower segment of scar contraction, and upper segmentation of the endometrial absence were included in the model. The predictive model showed good predictive performance in the derivation cohort (area under the curve, 0.837) and validation cohort (0.857). DCA demonstrated its clinical utility. A homogeneous endometrial echo was related to no segmentation of scar contraction (r=0.219; P<0.001) or no segmentation of the endometrial absence (r=0.226; P<0.001). Thicker endometrium was associated with no segmentation of the endometrial absence (r=-0.145; P=0.007). The proposed method can effectively predict live birth. 3D-TVUS should be an important means for evaluating the endometrium of moderate-to-severe patients with IUA preparing for pregnancy after operation.

Self-Supervised Enhancement for Named Entity Disambiguation via Multimodal Graph Convolution.

Named entity disambiguation (NED) finds the specific meaning of an entity mention in a particular context and links it to a target entity. With the emergence of multimedia, the modalities of content on the Internet have become more diverse, which poses difficulties for traditional NED, and the vast amounts of information make it impossible to manually label every kind of ambiguous data to train a practical NED model. In response to this situation, we present MMGraph, which uses multimodal graph convolution to aggregate visual and contextual language information for accurate entity disambiguation for short texts, and a self-supervised simple triplet network (SimTri) that can learn useful representations in multimodal unlabeled data to enhance the effectiveness of NED models. We evaluated these approaches on a new dataset, MMFi, which contains multimodal supervised data and large amounts of unlabeled data. Our experiments confirm the state-of-the-art performance of MMGraph on two widely used benchmarks and MMFi. SimTri further improves the performance of NED methods. The dataset and code are available at https://github.com/LanceZPF/NNED_MMGraph.

A Philosophical Inquiry into Practical Music Education in the Digital Age

Abstract Starting from the perspectives of constructivist philosophy and process philosophy, this paper uses descriptive analysis to explore the philosophy concept of practical music education, and concludes that practical music philosophy is the result of the comprehensive effect of many factors in music education. On the basis of the philosophy concept of music education, combining the characteristic parameters and objective function and similarity algorithm to construct a practical music education philosophy resource recommendation model to realize the construction of practical music education philosophy in colleges and universities, and adopting the method of statistical analysis to research and analyze the practical music education philosophy in the digital era. The results show that the score of instrumental performance students (4.0431) is significantly lower than that of students of other majors, and the difference is significant, with higher humanistic literacy in art and sports and a better foundation in cultural courses. The order of correlation between the scores of emotional identity dimension and the factors influencing the work of values cultivation in the philosophy of practical music education is, in descending order, the object of education (0.499), the subject of education (0.451), the mediator of education (0.476), and the ring of education (0.287), which indicates that the object of education (college students) is the most important factor influencing the work of values cultivation in the philosophy of practical music education. The purpose of this study is to examine the meaning and significance of practical music education philosophy, which is a significant source of inspiration for music education in China today.

Experimental investigation on static and dynamic properties of nanosilica modified cement soil

It has been proved that nanosilica can improve the mechanical properties of cement soil, however, the static and dynamic properties of nanosilica modified cement soil and dispersion method study of nanosilica in cement soil were few, thereby investigated by unconfined compression test and dynamic triaxial test in this study. A series of unconfined compression test results indicated that the dispersion method of nanosilica is of importance in the strength of nanosilica modified cement soil (NCS), and soaking in water for 24 h is the optimal dispersion method among designed methods. Unconfined compressive strength (UCS) increases with increasing nanosilica content in the range of 0 to 0.4%, and then reduces gradually while nanosilica content is beyond 0.4%. The optimal nanosilica content can be seen as 0.4%, and the corresponding UCS at the curing age of 7 d is 960 kPa, which increases by 47.2% comparing to the specimen without nanosilica. Dynamic triaxial test reveals that the variation of the cumulative plastic axial strain and dynamic elastic modulus versus nanosilica content are same and opposite to UCS respectively, and the minimum of the cumulative plastic axial strain and maximum of dynamic elastic modulus are obtained while nanosilica content is 0.4%, which reduces by 48.1% and increases by 69.8% respectively comparing to the specimen without nanosilica. Finally, a simple and practical prediction model is developed to capture the evolution of the cumulative plastic axial strain with cycle number, and its simulation effect is validated by dynamic triaxial test results. It is believed that this paper finds an efficient dispersion method of nanosilica in cement soil, and provides the dynamic properties of nanosilica modified cement soil, which can promote practical application of nanosilica in road engineering.

Design and mathematical modelling of Electric Vehicle

A model which is based on design will reduce the development cost of the system. There are different phases associated with complex models for systems like Electric Vehicles, these include Functional Specification definitions, Design specification, Test and authenticate and implementation. The case study done in this paper will be including only first two stages. The results will help to understand how the system designer can take decisions using simulation output. Simulation is a very complicated task which can represent simple design with precision and complex design with great accuracy that is almost near to the practical model. There is a compromise when making decisions with respect to precision and design complexity. It is always recommended to consider accurate models but when parameters are considered it is very difficult to determine parameters preferably in first stage of the model development and even the simulation of these accurate model is very slow. Hence a more detailed level of simulation model is needed. So, the system designer needs a complete overview of system power flow in the initial level of modelling. In the second level there is a need of designing more accurate model of different systems in which choosing an appropriate parameter for energy management system and power converters is needed. In this paper it can be clarified that a detailed design will validate the system’s behaviour with great accuracy and to conduct other adoptions as requires.

Exploring competitive advantages in enterprise supply chains: A case study of JD’s predictive and logistics links

In today’s fiercely competitive business landscape, enterprises strive to enhance their competitive advantage. One crucial aspect of achieving this is by optimizing their supply chain practices. This paper presents a comprehensive analysis of Jing Dong (JD), a prominent e-commerce company, as a case study to delve into its supply chain technologies. By examining the specific technologies implemented by JD and elucidating their positive impact on the company’s performance, this study establishes a robust theoretical foundation for further research. It offers a practical model for companies seeking to improve their supply chain practices. By adopting and adapting similar technologies and strategies, enterprises can unlock new opportunities, streamline operations, and ultimately gain a sustainable competitive edge in their respective industries. Through a deeper understanding of JD’s successful supply chain approaches, companies can strategically enhance their capabilities and thrive in the dynamic market environment.

Pengaruh Government Effectiveness dan Foreign Direct Investment terhadap GDP di Negara Asia Selatan

Analyzing the effect of Government Effectiveness Index and Foreign Direct Investment for GDP in South Asian countries is the objective of this study. The analytical methodology employed during this work is panel data regression. GDP is a dependent variable, whereas the Government Effectiveness Index and Foreign Direct Investment are independent variables. In this study, the Fixed Effect Model proves to be the most practical model. Its results indicate that South Asia's GDP is marginally and insignificant positively impacted by the Government Effectiveness Index. Then, foreign direct investment has a negligible and has a insignificant positive impact on the GDP of South Asia. Likewise, result of model indicates that the combination of the Foreign Direct Investment and Government Effectiveness Index variables affects the GDP of South Asia.

Strategi Manajemen Pemasaran Pada UMKM RW 11 Semolowaru Menggunakan Metode Analisis SWOT Guna Meningkatkan Daya Saing

&lt;p&gt;&lt;strong&gt;ABSTRACT&lt;/strong&gt;&lt;br /&gt;&lt;br /&gt;UMKM play a vital role in societal welfare, focusing on improving marketing management for increased sales. The research aims to create a practical management model supporting MSME productivity and development. Comprehensive training in business aspects, including marketing, production, HR, and finance, is crucial for UMKM. Continuous monitoring is necessary in their journey, utilizing SWOT analysis to determine marketing strategies and adapt to the business environment. The analysis assesses internal factors (Strengths and Weaknesses) and external factors or competitors (Opportunities and Threats). Identifying a lack of knowledge, the study recommends comprehensive training in all aspects. Four marketing strategies are proposed: S-O Strategy advocates product innovation and aggressive promotions with online sales. In the W-O strategy, attention to market needs and human resource quality is emphasized. The S-T strategy highlights product features and promotion innovation. In the W-T strategy, targeting markets, adapting to consumer wishes, and product adjustments are crucial for UMKM competitiveness.&lt;/p&gt;

신구교육과정의 비교 분석과 실과 중심 창의·융합 수업 모형의 탐색

This study aimed to compare and analyze the revised curriculum, focusing on practical arts subjects. The goal was to develop a model for creative convergence classes to effectively implement the autonomous achievement standards in information education as introduced in the revised 2022 curriculum. The study shifted its focus toward literature research methods, emphasizing document-based research to overcome the time limitations usually associated with fieldwork. First, the analysis of the comparison table between the current and new curriculums provided by the Ministry of Education revealed significant changes in the information education and autonomy achievement standards. The analysis of the curriculum overview further highlighted significant changes in the outlined humanistic qualities and core competencies. Additionally, the study delved into changes in extracurricular activities, career education, and safety education, examining and presenting the characteristics associated with desired human qualities and core competencies corresponding to each domain's content elements and achievement standards. Next, the study integrated the autonomous achievement standards based on the information education content elements of the practical arts subject. Finally, a practical arts subject-centered instructional model was proposed, developed, and presented with cases. While ‘Digital Society and Artificial Intelligence' in the practical arts subject are associated with the information education curriculum in middle schools and the autonomous achievement standards for the newly introduced practical arts subject are closely connected to elective subjects like Artificial Intelligence Basics and Data Science,elementary schools place relatively stronger emphasis on integrating subjects and extracurricular activities compared to middle schools. Therefore, the study focused on exploring ways to creatively integrate information education taught in grades 5 and 6 with practical subjects, other subjects, and extracurricular activities. These activities may include creative experiential activities and school autonomous hours. The findings of this research are expected to find broader application in open classes for parents and colleagues, extracurricular activities, trigger education, creative experiential activities, and school autonomous activities.

Students’ Acceptance of Drones Using the Knowledge, Attitudes, and Practice (KAP) Model

Currently, drones are used for commercial, public safety, recreational, and scientific research purposes. Both short-term and long-term projections indicate the extensive adoption of drones in numerous industries. However, it is uncertain whether future generations will tolerate this high potential for drone congestion. This quantitative survey study investigated students' approval of drones by employing the Knowledge, Attitude, and Practise (KAP) model and reducing uncertainty with statistical analysis. A recent survey utilised the KAP model to determine the public's perception of drones. This survey instrument was completely redesigned to better comprehend students' knowledge, attitudes, and risk perceptions regarding forty distinct drone applications. The practise section was also redesigned to better comprehend how students use drones on a personal and academic level. The results indicated that drones are currently approved. Commercial and recreational uses are not permitted. Students view drones as a potentially dangerous technology that directly invades their privacy. Furthermore, students are unaware of the majority of prospective and current drone applications. The survey was disseminated to college and high school students to represent the younger generation of the population (113 completed surveys). Additionally, students must be informed about these strategies via the media and educational institutions. This may assist in transforming the perception of drones from destroying machines and privacy invaders to a technology beneficial to society

Screening of New-Born through Otoacoustic Emission Device in a Rural Setting for Early Detection of Hearing Impairment - An Observational Study

BACKGROUND&#x0D; Hearing is a special sense needed for proper speech, language, mental development and academic performance. The objectives of our study were to screen neonates at rural area with otoacoustic emission device for detecting hearing impairment and develop a comprehensive rehabilitation model for hearing impaired children in rural areas. Hearing loss initial signs are subtle and therefore for early detection routine neonatal hearing screening is the most effective tool. At first otoacoustic emissions are done, failing which neonates undergo BERA as final screening method to identify hearing impairment as a confirmatory test. In a country like India where neonatal hearing tests are not a part of the routine screening program, the chances of missing early detection and possible rehabilitation are large. In this context, the current project envisages to develop a practical and pragmatic screening model for detecting early neonatal hearing impairment using otoacoustic emission technique in a rural sector reaching every door step possible.&#x0D; METHODS&#x0D; From the government health records collected for a duration of one and half years, all babies delivered in PHC were included for the screening. The babies were screened every Thursday (Immunisation day) with OAE devices by an audiologist at the PHC. The total number of infants screened were 1737. The first screening test done was otoacoustic emission, failing which patient was referred for BERA as a confirmatory test.&#x0D; RESULTS&#x0D; The total number of babies screened by OAE in our study was 1737. Out of the total infants screened, 1st OAE referrals were 327 babies. All the 327 infants were screened by OAE for the 2nd time, out of which 10 infants were referred for the 2nd consecutive time. 317 infants were passed on 2nd OAE screening. All the 10 infants who were referred for the 2nd time were subjected to BERA at Ramaiah medical Hospital. Out of these 10 infants, BERA showed severe to profound bilateral hearing loss in 7 infants (Confirmed Hearing loss). Other 3 infants had normal BERA reading hence normal hearing. The statistics showed that the overall rate of hearing loss prevalence was 4.03 per thousand.&#x0D; CONCLUSIONS&#x0D; In order to diagnose hearing loss in neonates, it is critical to identify hearing loss at birth and provide a screening test for it. OAE screening of neonates should be done at the earliest to detect hearing impairment so that hearing and speech rehabilitation can be started at the earliest. It should be done at each &amp; every health care centre on a large-scale basis to cover all the babies.

THE PRACTICE OF BROADCASTING THE DIGITAL EDUCATIONAL ENVIRONMENT IN THE CONTEXT OF THE IMPLEMENTATION OF ANDRAGOGICAL SUPPORT OF TEACHERS

Background. The relevance of the study is determined by the need to significantly increase the percentage of the introduction of digital technologies in the educational process.&#x0D; Purpose. The authors of the article aim to form a model for the implementation of the process of andragogical support of teachers, developed in the context of the digitalization of modern society and aimed at mastering the elements of the digital educational environment by teachers, taking into account new tools and services.&#x0D; Materials and methods. The achievement of the goals set in the work was carried out on the basis of general scientific research methods within the framework of comparative, theoretical analysis of scientific literature and normative documents on the methodological foundations of the organization of the processes of andragogical support of teachers within the digital educational environment. In the empirical part of the study, the authors visualized the process of organizing additional education for teachers on the basis of the Orenburg State Pedagogical University through the method of practical modeling.&#x0D; Results. The analysis of scientific literature and normative documents in the field of andragogical support of a teacher allowed the authors to identify and characterize three key components of digitalization of the teacher support process in modern society. The assessment of the content component of these components and the practical experience of broadcasting the digital educational environment in the context of the implementation of andragogical support of teachers allowed the authors to develop a model for organizing additional teacher education. Using the example of this model, the possibilities of using the advantages of digital technologies in the additional education of a teacher are shown.&#x0D; Practical implications. The results obtained can be applied in the system of additional education of teachers.

Functioning of the Family System With an Autistic Child: A Comparative Study Between Poland and California, USA

Objectives of the research: The aims of this research are to conduct a comparison study between the level of communication and flexibility in families with autistic children in two different geographical locations and cultural contexts – California (USA) and Poland (Europe) – to address whether the level of these two dimensions of family functioning are related to the ego-resiliency of the parents, and additionally to discuss the practical implications that can be drawn from the results.&#x0D; Research methods: Communication and flexibility profiles in family functioning were collected in Poland and California from September 2016 to February 2018. Data on the similarities and differences between parents of children with autism spectrum disorder in Poland (n=111) and California (n=105) was collected using Olson’s FACES-IV. The Ego-Resiliency Scale was also administered in methodologically standardized conditions and was empirically analyzed along with controlled demographic variables.&#x0D; A short description of the context of the issue: Family functioning and ego-resiliency in families with children with autism are analyzed in this research. The richness of interactions and connections within the family system suggests that when explaining the relationships within the family system, the interpretation that is based on linear causality is abandoned and replaced by circular causality, which is the model of analysis utilized in this research project. The main goals of this research were to compare and contrast family functioning in two geographical locations and cultural contexts and to show statistically significant differences between these two groups, in order to better understand cultural variations and differences that may affect family functioning and ego-resiliency and to provide the different groups with adequate, necessary support services.&#x0D; Research findings: The results revealed statistically significant differences in various dimensions of Family Communication and Flexibility between families of autistic children in California and Poland. With respect to both variables, higher scores were found in the California group. The flexibility results in both groups were defined as flexible. However, in regards to family communication, the result of the California group corresponded to higher standardized scores, whereas those of the group from Poland revealed moderate standardized scores.&#x0D; Conclusions and recommendations: Statistically significant positive correlations were found in the variables of Flexibility and Family Communication between Poland and California. The results of this research are critical, not only from the perspective of scientific development (as similar studies have not been conducted), but also for therapeutic and preventive reasons. They suggest concentrating on preventive activities and aspects that are important for the well-being of the parent as a person, as well as the entire family system, especially the dimensions of communication in families with children with autism spectrum disorder and the ego-resiliency of the parents. However, further research is needed to specifically identify the differences between the groups based on various demographic variables. Additionally, it is important to develop a practical model to support families with autistic children and to address family satisfaction in intervention strategies, as well as to consider the importance of support groups that may improve satisfaction and ego-resiliency within the family system.

The Anthropological Turn: Cultural Practices for the Development of Human Complexity

Introduction. In the worldwide situation of collision accompanied with systemic crises, it is proposed to raise a reflexive question – how institutions and knowledge-systems can be arranged to support complexity, diversity, and subjectivity of Human action. Authors propose an approach to overcoming systemic gaps through reframing and re-actualization of the field of socio-humanitarian practices. It is necessary to “build up” the environment of integration of sciences and cultural practices of human development. The article presents the key provisions of the “Anthropological Turn” approach, provides an overview of the foundations and basic ideas, as well as specific practical models of activity. Materials and Methods. The “Anthropological Turn” sets a fundamentally different framework and actually highlights the objects and mechanisms of interpretation of the results for future humanitarian research. “Anthropological Turn” research program overcomes the naturalistic approach in the study of humanitarian processes. Results. Authors propose and describe four basic practical and organizational models. These models are acting as the activity infrastructure for the implementation of the ideas of the Anthropological Turn: the historical and evolutionary methodology for designing universities of the future; productive activities for the socio-cultural development of territories and technological entrepreneurship in childrenʼs and adult communities; search, development and replication of humanitarian (cultural, educational, etc.) practices; the family as an institution for the development of subjectivity and human identity. Discussion and Conclusion. The described approaches and implemented projects made an ecosystem of educational solutions. On the one hand, they provide support for the development of the professional and educational space and innovative activities of the subjects of Russia, the creation and dissemination of promising educational practices, training of high-level professionals for the social sphere, business; and, on the other hand, it contributes to the formation of a dynamic system for the implementation of continuous professional development of personnel.

Establishment and evaluation of an improved rat model of open abdomen.

This study aimed to establish an animal model of open abdomen (OA) through temporary abdominal closure via different techniques. Adult male Sprague-Dawley rats were randomly divided into three groups: group A (OA with polypropylene mesh alone); group B (OA with polypropylene mesh combined with a patch); and group C (OA with polypropylene mesh and a sutured patch). Vital signs, pathophysiological changes, and survival rates were closely monitored in the rats for 7 days after surgery. Abdominal X-rays and histopathological examinations were performed to assess abdominal organ changes and wound healing. The results showed no significant difference in mortality rates among the three groups (p > 0.05). However, rats in group B exhibited superior overall condition, cleaner wounds, and a higher rate of wound healing compared to the other groups (p < 0.05). Abdominal X-rays indicated that varying degrees of distal intestinal obstruction in all groups. Histopathological examinations revealed fibrous hyperplasia, inflammatory cell infiltration, neovascularization, and collagen deposition in all groups. Group B demonstrated enhanced granulation tissue generation, neovascularization, and collagen deposition compared to the other groups (p < 0.05). Polypropylene mesh combined with patches is the most suitable method for establishing an animal model of OA. This model successfully replicated the pathological and physiological changes in postoperative patients with OA, specifically the progress of abdominal skin wound healing. It provides a practical and reliable animal model for OA research.

An Enhanced Genetic Algorithm using Directional-Based Crossover and normal mutation For Global Optimization Problems

Global optimization has been employed in many practical modeling processes. Using gradient methods to solve optimization problems may be computationally inefficient and time-consuming, particularly when convexity or differentiability is not guaranteed. On the other hand, nature-inspired techniques offer an effective gradient-free approach for solving complex, non-convex, or non-differentiable problems. Genetic algorithms are one of the most effective and widely used nature-inspired techniques. However, canonical genetic algorithms do not always guarantee convergence to the optimum point owing to the stochastic nature of the genetic operators, and typically require more work to ensure convergence and increase performance. Improving the genetic operators remains an open issue and usually involves a trade-off between the speed of convergence and searchability. In this study, we propose an enhanced genetic algorithm that relies on directional-based crossover and normal mutation operators to increase the speed of convergence while preserving searchability. The proposed algorithm is evaluated using a set of 40 typical benchmark functions in two dimensions. In addition, to examine its performance at higher dimensions, 16 functions from the test set were tested at 10 and 100 dimensions. The evaluation results of the proposed algorithm are compared to the outcomes of three modern optimization algorithms, namely (Whale optimization algorithm, Teacher-Learner based algorithm, and Covariance matrix adaptation evolution strategy). The results revealed that the proposed algorithm outperformed the conventional algorithms at lower dimensions in all test functions and showed a relatively better performance than the other algorithms at higher dimensions.

إعداد المعجم العربي المصاحب لطلاب الفصل السابع في المدرسة المتوسطه "المنور" بوجونغارا

Mufrodat is an important component of language, because its function is to form sentences or phrases. Of the many dictionaries created by linguists, and the various studies that have been conducted to create new dictionaries in the form of pocket dictionaries, the researcher still has not found a dictionary that specifically explains the material in Chapter VII. Even in the recent development of pocket dictionaries, educators who explain grade 7 material are still too few and require detailed understanding. Because writing a pocket dictionary is still not as short as a dictionary that can be used immediately. So we need a new alternative with a more practical model so that it is easier for students to learn dictionary vocabulary with a basic understanding without difficulty memorizing. This study uses research and development methods. This is a research method used to obtain a certain production. This study resulted from the Arabic language teaching method in the form of an Arabic pocket dictionary. Products are arranged based on teaching materials in elementary school textbook chapters. After the dictionary is written, it is evaluated by design experts, Arabic teachers, and Arabic language experts. Then given to students to help facilitate learning Arabic. Arabic teachers and Arabic subject experts evaluate and provide advice on the design of the resulting dictionaries including: definitions, readings, and suitability for Arabic learning ability levels.

Student Perceptions on the Implementation of Practical Subjects Learning Models Post Pandemi Covid- 19

This research is based on the outbreak of the Covid 19 pandemic, where for its prevention, it applies the rules of keeping a distance from each other or face-to-face lectures are not possible and must be carried out online or using (Zoom). In addition, this situation makes the lecturer laborious to know which students can practice the movements that are indicators of learning in practical courses. This quantitative research used a descriptive approach. It aimed to determine the perceptions of Sports and Health Education Study Program students of FKIP Universitas Jambi on the application of learning models in practical courses during the Covid-19 pandemic. The research benefits include: 1) for the lecturers, it can be a consideration to use learning models during the Covid-19 pandemic, 2) How the students need to train themselves to practice indicators of movement skills that must be mastered in these practical courses. It was because in practice, carrying out practical activities was impossible. In collecting the data, this research used a questionnaire with a Likert scale and validity and reliability tests. Afterward, the data collected were analyzed descriptively by calculating percentages. The results showed that students' perceptions of implementing learning models and practice during the Covid-19 pandemic, 64.2% stated 'agree' 31.3% 'strongly agree', and the remaining 4.5% were 'unsure". It concluded the students 'agree' with the application of the learning model using Zoom application in practical courses during the Covid-19 pandemic.

Practical Construction of Professional Core Elements for Higher Vocational Students

Education practice is a scientific way to realize the core professional quality of vocational college students characterized by professional attributes and era implication; Sort out and disclose the connotation and representation dimension of professional core quality of vocational students in the new era; Build the "four platforms+four modules" practical teaching and education model, track and evaluate the effect through the whole process based on the data platform, and provide reference and inspiration for the cultivation practice of vocational students' professional core literacy.