bluuebunny/crossref_metadata_2025 huggingface dataset:
Students’ Perspective About Their Cyberbullying Behavior And Disclosure at Higher Education Institution in Pakistan
Authors: Parveen Fozia , Muhammad Noor , Altaf Sobia
Published: February 2023

With the passage of time usage of social media has been enlarged. Hence, it has enhanced the risk of youth being bullied and has appeared such as a huge concern for parents, instructors as well as other working professionals remarkably. Objectives of this research was to identified the opinions of students about the presence, occurrence and exposure of cyber bullying behavior also the negative effects of cyberbullying on student’s thoughts and emotions. The sample consisted of 10 male students of five universities of Punjab in Pakistan. In this way qualitative research methods, semi-structured interview was conducted with each student who identify the individual opinions and behaviors. This type of qualitative research was a case study that was preferred the phenomena of cyber bullying. Content analysis was used to interpret the phenomena. As a result of this analysis, students on exhibited cyberbullying behaviors according to their individualities, their emotions of anger, sadness and hate were more often showed. The results of this research were reflected in the findings and suggestions persuaded for cyber victims. It was further recommended that psychological counselors should work in higher education institutions.
Seasonal Autoregressive Integrated Moving Average for Climate Change Time Series Forecasting
Authors:   Department of Communications and Electronics, Delta Higher Institute of Engineering and Technology, Mansoura 35111, Egypt, Sameh Basant ,   Department of Communications and Electronics, Delta Higher Institute of Engineering and Technology, Mansoura 35111, Egypt, Elshabrawy Mahmoud
Published: February 2023

This study investigates the application of time series models, specifically ARIMA (Auto Regressive Integrated Moving Average) and SARIMAX (Seasonal Autoregressive Integrated Moving Average with eXogenous regressors), in the context of climate change. The ARIMA and SARIMAX models are mathematical methods that can be used to forecast future values of a time series related to climate change, taking into account trends and seasonality, as well as incorporating additional information through exogenous variables. The paper also delves into the mathematical foundations of the ARIMA and SARIMAX models, including the various operators used to eliminate trends, the use of lag polynomials to represent the autoregressive and moving average components of the model, and the incorporation of exogenous variables in the SARIMAX model. The study aims to provide a better understanding of the use of these models in analyzing and predicting the effects of climate change.
An inclusive study on the fundamentals of interval-valued fuzzy hypersoft set
Authors:   Department of Mathematics, University of Management and Technology Lahore, Pakistan, Saeed Muhammad ,   Department of Mathematics, University of New Mexico, Gallup, NM 87301, USA,   Department of Mathematics, University of Management and Technology Lahore, Pakistan,   Department of Mathematics, University of Management and Technology Lahore, Pakistan, Smarandache Florentin , Arshad Muhammad , Rahman Atiqe Ur
Published: February 2023

When compared to its extension, hypersoft set, a soft set only deals with a single set of attributes, while a hypersoft set deals with several attribute-valued disjoint sets that correspond to various attributes. Several researchers have developed models based on soft sets, but the majority of these models suffer from limitations since they are inappropriate for interval-type data or uncertain data. In order to address these issues, a novel model interval-valued fuzzy hypersoft set (IV F HS -set) is presented in this research article. This model not only resolves the inadequacy of soft set for distinct attributes for non-overlapping attribute-valued sets, but also addresses the limitations of soft set-like models with having data in interval environment. This work modifies the current fuzzy hypersoft set concept and introduces certain fundamental ideas, such as subset, not set, whole set, and absolute relative null set, relative absolute set and aggregation operations e.g. intersection, union, extended intersection, restricted union, complement, OR, AND, difference, restricted difference are discussed under IV F HS -set environment with illustrated examples. Some new hybrids of fuzzy hypersoft set under interval-valued settings are also discussed. Moreover, some extensions of IV F HS -set are presented along with different operations.
Classification of Diabetic Foot Thermal Images Using Deep Convolutional Neural Network
Authors:   Delta Higher Institute for Engineering and technology, Mansoura, Egypt, Yousef Reem N. ,   Delta Higher Institute for Engineering and technology, Mansoura, Egypt,   Electronics and communications Engineering, Faculty of Engineering, Mansoura University, Egypt, Eid Marwa M. , Mohamed Mohamed A.
Published: February 2023

Diabetic foot (DF) is one of the most common chronic complications of poorly controlled diabetes mellitus (DM). Early diagnosis of DF and effective treatment is usually difficult by traditional approaches. Lately, it has been found a strong relationship between temperature variation and diabetic foot ulcer emergence. Thus, the current study focused on monitoring the temperature of feet using thermal images and its analysis techniques. The proposed system was based on employing a deep convolutional neural network (CNN) on thermal foot images. Experimental results showed that the proposed CNN has a maximum accuracy of 99.3% with minimum losses. When comparing the proposed system to other relevant systems, the proposed system approved greater accuracy, lower elapsed and testing time, which offers an automatic diagnostic tool for the diabetic foot and differentiates between its types. Thus, a simple, cost-effective, and accurate computer aided design (CAD) system could be presented to get a valuable system for the clinicians in hospitals.
Alkaline Phosphatase is an Independent Risk Factor for Periprosthetic Fractures in Total Joint Arthroplasty
Authors: Lung Brandon E. , Kim Matthew , McLellan Maddison , Callan Kylie , Wang Edward D. , McMaster William , Yang Steven , So David H.
Published: February 2023

Background:

Serum alkaline phosphatase (ALP) is a biomarker for chronic low-grade inflammation along with hepatobiliary and bone disorders. High abnormal ALP levels in blood have been associated with metabolic bone disease and high bone turnover.

Methods:

All primary total hip and knee arthroplasties from 2005 to 2019 were queried from the National Surgical Quality Improvement Program database. Patients with available serum ALP levels were included and stratified to low (<44 IU/L), normal (44 to 147 IU/L), and high (>147 IU/L). A risk-adjusted multivariate logistic regression was used to analyze ALP as an independent risk factor of complications.

Results:

The analysis included 324,592 patients, consisting of 11,427 low ALP, 305,977 normal ALP, and 7,188 high preoperative ALP level patients undergoing total joint arthroplasty. Adjusted multivariate logistic regression analysis showed high ALP level patients had an overall increased risk of readmission within 30 days of surgery compared with the control group (odds ratio [OR], 1.69; P < 0.01). High ALP patients also had an increased risk of postoperative periprosthetic fracture (OR, 1.6), postoperative wound infection (OR, 1.81), pneumonia (OR, 2.24), renal insufficiency (OR, 2.39), cerebrovascular disease (OR, 2.2), postoperative bleeding requiring transfusion (OR, 1.83), sepsis (OR, 2.35), length of stay > 2 days (OR, 1.47), Clostridium difficile infection (OR, 2.07), and discharge to a rehab facility (OR, 1.41) (all P < 0.05). A low ALP level was also associated with increased postoperative bleeding transfusion risk (OR, 1.12; P < 0.01) and developing a deep vein thrombosis (OR, 1.25; P = 0.03).

Conclusion:

Abnormal serum ALP levels in patients undergoing primary total joint arthroplasty are associated with increased postoperative periprosthetic fracture risk and medical complications requiring increased length of stay and discharge to a rehabilitation facility.
World Health Organization International Strategy Facing the Covid-19 Pandemic For Stronger and Recovery G.20: Competition and Globalization
Authors: Endang Susilowati  , Erwin Susanto
Published: February 2023

The International Market generates potential new opportunities. Another traditional motive for companies to become multinationals is to secure the resources needed. With a multidomestic strategy, state managers have autonomy to tailor the company's products as necessary to meet the specific needs and preferences of local customers. The company uses a global strategy to offer standard products across country markets, with a competitive strategy defined by headquarters. A transnational strategy is an international strategy that companies use to achieve global efficiency and local responsiveness. The Covid-19 pandemic has had a broad impact on daily life, especially in terms of socio-economics. Various efforts were made by WHO and collaborated with various countries to overcome this pandemic and make policies and handling to deal with the virus.  This paper explores WHO's international strategy during the Covid-19 pandemic for the speed of handling Covid-19 in the global context.
Management Challenge: A Case of Aniridia and Aphakia with Secondary Glaucoma in Sclerokeratoplasty
Authors:   Department of Ophthalmology, Sri Aurobindo Institute of Medical Sciences and PG Institute, Indore, Madhya Pradesh, India, Thatte Shreya , Jaiswal Komal ,   Department of Ophthalmology, Sri Aurobindo Institute of Medical Sciences and PG Institute, Indore, Madhya Pradesh, India, Maheshwari Radhika ,   Department of Ophthalmology, Sri Aurobindo Institute of Medical Sciences and PG Institute, Indore, Madhya Pradesh, India
Published: February 2023

A patient presented to us with post-infectious keratitis and a large anterior staphyloma in the left eye with vision as low as only the perception of light and accurately determining the projection of rays. A B-scan showed no abnormality in the posterior segment. Sclerokeratoplasty with an 11-mm graft with aniridia and aphakia was done. On 4 weeks of follow-up, intraocular pressure (IOP) was 39 mmHg on applanation tonometry, for which medical management was tried using a combination regime that was insufficient, following which a series of management approaches like trabeculectomy and Ahmed glaucoma valve (AGV) implant was done (in superotemporal quadrant). Unfortunately, recurrent exposures of the AGV tube were encountered, which were managed using different graft materials one after the other but were unsuccessful. Ultimately, AGV explantation and reinsertion at another site (in inferotemporal quadrant) was tried, which led to salvaging the eye with well controlled IOP, clear graft, and good visual function (best corrected visual acuity of 6/12p with +12.00/+1.50 × 90◦ ). The purpose of this article was to highlight that despite multiple complications encountered in a single case, a careful sequential approach, good surgical skills, and a never giving up attitude lead to excellent results.
BITCOINS E A POLÍTICA DE CONTROLE ESTATAL, SOB A ÓTICA DA TEORIA DE KEYNES
Authors: De Carvalho Lucas Soares , Alonso Ricardo Pinha
Published: February 2023

O presente artigo tem como finalidade específica discorrer acerca das criptomoedas, mais especificamente com o caso do bitcoin no direito brasileiro, caracterizando, de maneira estrita o termo moeda, bem como buscando prever, de maneira embasada as possíveis consequências de um ativo financeiro, se considerado como moeda, se posto em circulação na economia nacional ou global. Continuando, o presente trabalho busca elucidar a conceituação do bitcoin, bem como blockchain, utilizados para a transação e utilização de tais ativos. Ainda neste sentido, discorro sobre a teoria de Keynes e suas nuances, mais precisamente no que concerne ao idealismo do economista em relação ao controle estatal, bem como as suas políticas econômicas. Por fim, abordo mais ao cerne do questionamento fundado sobre o controle estatal no que se refere as criptomoedas, de maneira mais aprofundada quantos aos bitcoins. O presente artigo tem como método a categoria dedutiva com o emprego de procedimento metodológico de revisão bibliográfica, sendo a pesquisa realizada com base em artigos, periódicos e pesquisas em sites que dizem respeito ao tema abordado e seus consequentes desdobramentos.
PENGARUH EVENT, IKLAN DAN PROMOSI PENJUALAN TERHADAP KEPUTUSAN PEMBELIAN PRODUK SHOPEE DI SEMARANG
Authors: Khafidhoh Nully Huda Imam , Hartono Budi
Published: February 2023

Developments in this technological era have influenced manufacturers to innovate in promoting their products to consumers, such as promoting their products on the Shopee application. This research aims to analyze the magnitude of the influence of events, advertising and sales promotions on purchase decisions of Shopee consumers in Semarang. In this study, the researchers determined that the sample used was 100 Shopee consumers in Semarang and had at least made transactions at Shopee e-commerce. The analytical test used is an instrument test (validity and reliability), classic assumption test, hypothesis testing and multiple linear regression analysis. The results of this research indicate that variables such as events, advertisements, and sales promotions have a significant effect, either partially or simultaneously, on the purchasing decisions of Shopee consumers in Semarang.
History of mountain warfare
Authors: Tannheimer Markus , Lechner Raimund
Published: February 2023

Mountain warfare has thousands of years of history and presents numerous challenges to military operations. History proves, that this environment has decreased combat strength, caused more casualties than the enemy in some operations and influenced war tactics significantly. Mountain warfare has an increasing frequency due to withdrawal areas for hostile forces, being home of ethnic minorities, being origin of many water supplies and being a natural frontier between countries. Mountains influence all warfighting functions, but especially movement and manoeuvre (mobility) and force protection (health support). To overcome the hardships of mountain warfare, special mountain units including support elements are mandatory, especially for health service support.
Postawy uczniów wobec kultury fizycznej, lekcji wychowania fizycznego i ćwiczeń
Authors: Gądek Adrian
Published: February 2023

Wstęp: Pojęcie postawy wobec kultury fizycznej składa się z wielu określeń o węższym znaczeniu. Bardziej sprecyzowane znaczenie dotyczy wszelakich jej elementów. Można wyróżnić postawę wobec własnego ciała, jego budowy, higieny, sprawności fizycznej, różnych form wypoczynku i aktywności itp. Celem badań było określenie postaw wobec kultury fizycznej, lekcji wychowania fizycznego i ćwiczeń młodzieży kończącej szkoły ponadpodstawowe.Materiał i metody: Badaniami objęto tarnowskich uczniów, którzy uczęszczali do ostatnich klas liceów ogólnokształcących, techników i szkół branżowych pierwszego stopnia. Badaniami zostało objętych 751 uczniów, w tym 413 (55,0%) mężczyzn i 338 (45,0%) kobiet. W przeprowadzonych badaniach podstawową metodą był sondaż diagnostyczny. W celu uzyskania niezbędnych danych, które posłużyły do zweryfikowania postawionych hipotez zastosowano technikę ankietowania, z następującym narzędziem badawczym: Kwestionariusz do badania postaw młodzieży wobec kultury fizycznej autorstwa S. Strzyżewskiego.Wyniki: Jak wykazały przeprowadzone badania, każdy ze wskaźników postaw uczniów wobec kultury fizycznej był na średnim poziomie, a ich wartości wahały się od 2,06 do 2,55 pkt. Średnia wartość wskaźnika globalnego postawy wyniosła 2,28 pkt. Najwyższy wynik dotyczył komponentu poznawczego (2,55), a najniższą średnią wartość odnotowano w przypadku komponentu behawioralnego (2,06). W komponencie behawioralnym wystąpiło największe zróżnicowanie danych. Mężczyźni cechowali się wyższymi przeciętnymi wartościami badanych wskaźników postaw niż kobiety.Wnioski: Z otrzymanych danych wynika, że postawy wobec kultury fizycznej badanej młodzieży kształtują się na zadowalającym, choć średnim poziomie. Badani mężczyźni wykazywali wyższe wartości w poszczególnych komponentach postawy jak i wskaźniku globalnym. Uczniowie z techników dominowali nad pozostałymi typami szkół.
Pengaturan Metode Omnibus Dalam Undang-Undang Nomor 13 Tahun 2022 Tentang Pembentukan Peraturan Perundang-Undangan
Authors: Dhezya Pandu Satresna
Published: February 2023

Permasalahan over regulasi yang berakhir saling tumpang tindihnya Undang-Undang adalah cikal bakal kenapa Undang-Undang No. 13 tahun 2022 ini lahir. Yang salah satunya dalam undang-undang ini mengenalkan metode omnibus, yang kita tahu menjadi trauma masyarakat Indonesia terkhususnya buruh karena adanya UU Cipta Kerja yang fenomenal. Dari situ penulis ingin mencari tahu bagaimana pengaturan dan sistem hukum yang disuguhkan dalam Undang-Undang No.13 tahun 2022 serta bagaimana penerapan metode omnibus di negara lain.  Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian hukum yuridis normatif. Dari penelitian ini dapat disimpulkan bahwa masih terdapat kekurangan dalam substansi hukum metode omnibus dalam Undang-Undang No 13 tahun 2022 untuk mengatur keterkaitan materi muatan. Serta perlunya pemerintah melihat penerapan negara lain dalam metode omnibus contohnya Turki, yang menurut penulis memiliki solusi dalam mencegah deadlock dalam proses  pembahasan legislasi undang-undang dengan metode omnibus.
Perumusan Strategi Komunikasi Pemasaran Terpadu Pada Organisasi Dakwah
Authors: Mujianti Fitri
Published: February 2023

Abstrak: konsep tentang komunikasi pemasaran terpadu bisa diterapkan pada organisasi dakwah, walaupun konsep tersebut muncul dari persoalan yang dialami oleh Sebagian besar perusahaan komersil serta cenderung digunakan pada pemasaran komersil. Sama halnya dengan organisasi profit, organisasi dakwahpun juga melakukan upaya komunikasi pemasaran dengan tujuan untuk merubah perilaku masyarakat agar menjalankan nilai-nilai Islam. tujuan tersebut dianggap lebih sulit dicapai jika dibandingkan dengan tujuan pembelian barang atau jasa. komunikasi pemasaran terpadu dianggap sebagai solusi akan hal tersebut. penelitian ini bertujuan untuk merumuskan strategi komunikasi pemasaran terpadu pada organisasi dakwah. harapannya, penelitian ini bisa dijadikan sebagai panduan bagi pelaku organisasi dakwah dalam mencapai tujuan pemasaran. penelitian ini menggunakan pendekatan kualitatif spesifiknya mengadaptasi teori komunikasi pemasaran terpadu kedalam organisasi dakwah. hasil dari penelitian ini menunjukkan bahwa karakteristik organisasi dakwah yaitu ikatan aqidah Islam menjadi landasan dalam perumusan strategi komunikasi pemasaran terpadu. secara teknis, hal tersebut tersebut tercermin kedalam setiap variabel perumusan.
Acquisition of Voice Onset Time for Voiced Plosives of English by Adult Learners of Balochistan
Authors: Syed Nasir Abbas , Aldaihani Sultan Melfi , Bibi Shah
Published: February 2023

This study focuses on two experiments conducted with Eastern and Western Balochi speakers. In Eastern Balochi, voiceless stops have aspirated features, but in Western Balochi, they are unaspirated. Eighty-four native speakers of both dialects of Balochi participated in this study. Participants of the first experiment produced words of their L1 in a picture naming task, and those of the second experiment read words in English. VOTs of the L1 and L2 voiced stops elicited from recordings of the productions. Results show that speakers of Western Balochi transfer their L1 negative VOTs to L2 English-voiced stops. However, Eastern Balochi speakers produce English-voiced stops with VOTs, significantly different from their L1 VOTs. Though they could not produce English-voiced stops with native-like accuracy, they produced English stops with significantly longer pre-voicing duration than their L1-voiced stops. Therefore, the study concludes that speakers of those languages with stops with negative VOT ranges face more difficulty acquiring L2 voiced stops of short-lag positive VOTs than those learners whose L1 does not have such stops. The speech learning model is used in this study to analyze all results.
The Influence of Written Corrective Feedback on Students’ Learning Engagement in Writing: A Longitudinal Comparative Study of Middle and High School EFL Students in China
Authors: Tang Jinghua
Published: February 2023

In the process of writing, EFL students produce language output, which tests their ability to use language comprehensively. Teacher feedback is an important bridge between learners and teachers, which is the most common and important form of feedback that cannot be replaced. This study aims to explore the effects of teachers’ written corrective feedback on students’ learning engagement in English writing at different ages from the perspective of students’ intrapersonal factors. The data explored in this article are collected by questionnaire from students in a junior and a senior high school both located in Guangzhou. The questionnaire uses the most authoritative method to classify learning engagement into behavioral, cognitive, and affective dimensions. The specific research question is whether are there any differences in learning engagement between the two age groups.

The findings indicate that there are significant differences in the three dimensions of learning engagement between the two age groups. Generally, senior high school students’ degree of learning engagement is lower than that of junior high school students. Based on the detailed analysis of the differences in specific learning situations, this paper gives some specific suggestions for English teachers’ writing teaching practice.
MenPas 1.0: plataforma online de evaluación psicosocial
Authors: Sánchez-García Carolina , Pérez-Romero Nuria , Quiñones-Rodríguez Yarisel , Gónzalez-Ruiz Sergio L. , Pastrana-Brincones José L. , Enríquez-Molina Rocío , García Rabaneda José Antonio , Sánchez Izquierdo María , Reigal Garrido Rafael E. , Morales-Sánchez Verónica , Hernández-Mendo Antonio
Published: February 2023

El uso de instrumentos informatizados y en línea se ha incrementado notablemente en las últimas décadas. Sucesos como la COVID-19 han influido en la consolidación de su uso, siendo herramientas de trabajo muy útiles para evaluación e investigación. El objetivo del presente trabajo fue analizar una plataforma de evaluación online denominada MenPas 1.0, explorando sus áreas de trabajo y el flujo de datos de los últimos años. Se ha seguido una estrategia descriptiva para analizar las posibilidades que ofrece la plataforma, así como el tráfico de datos que posee y número de usuarios. Los resultados muestran que esta plataforma ofrece herramientas vinculadas a las siguientes áreas: ansiedad, atención, autoconcepto, autorregistros, burnout, búsqueda de talentos, calidad de vida, dinámica grupal, entrenamiento mental, inteligencia emocional, estrés, generalizabilidad, hipnosis, liderazgo, motivación, observación, organizaciones/calidad, socialización, toma de decisiones o visualización. Actualmente, tiene más de 16 mil usuarios registrados y acumula más de un millón trescientos mil sucesos. Algunos de los cuestionarios alojados han sido respondidos más de 60.000 veces. Además, sus usuarios proceden de múltiples países europeos y asiáticos, americanos o de Oceanía. Los resultados ponen de relieve el amplio espectro de uso que tiene la plataforma, las posibilidades de almacenamiento y procesamiento de datos que permite y la universalización de los recursos informatizados.
Experimental Study of Casting using Loose Piece Pattern (Dovetail)
Authors: Tiwari Shashi Kant , Rawani Nikhil Kumar , Kumar Uttam , Kundu Manoj
Published: February 2023

One of the earliest metal-shaping techniques used by humans is casting. Typically, it entails pouring molten metal into a chamber of a refractory mould that has the desired shape before letting it cool and solidify. When the desired metal product has formed, the refractory mould is broken or disassembled to release it. When it is impossible to remove the pattern from the mould due to the part's shape, a loose piece pattern is employed. Casting faults should be decreased in order to improve the quality and productivity of any company. It is a procedure that results in some defects that give the intended product a chippier quality.
DC-DC Converters Topology
Authors: Besekar Nikita Prashant
Published: February 2023

In this paper the various perspectives on different dc-dc converters are reviewed . The various advantages and disadvantages of both Converter topologies that are classical and recent converters and overview of dc micro grid are discussed. From the data we found that every Converter has some advantages and disadvantages also but the Buck, Boost, Cuk and zeta Converter have less ripple. And Buck and Boost has the best efficiency as per cost. The dc micro grid has lots of advantages over AC microgrids; they can perform reliable operation, higher efficiency, low power loss and no skin effect. Theoretical and practical implications were discussed. Advanced dc converters are also reviewed.
Factors Influencing Classroom Participation: A Case Study of Undergraduate Students at Education Faculty, Paktia University
Authors: Rohi Saifurahman , Muslim Saifullah
Published: February 2023

There was a lack of students’ participation in classroom activities. Student participation varied according to gender, education level, housing area, and employment, language proficiency and cultural restrictions. It was needed to discover factors that influence students’ participation in classroom activities, to address the current situation and key challenges of classroom participation. Therefore, the objectives of the study were to distinguish the factors that increase and decrease student classroom participation and to investigate the most influential factors that affect classroom participation. In addition, the research recommends sustainable resolutions. The methodology adopted includes the use of questionnaires, two classes of observation in the English department, and a review of relevant documents. The size of the class, a lack of time, and the course policies that were observed in class were major barriers to student participation in class activities. Teachers did not give students enough time to consider the question before responding. The current survey found that the personalities of the instructor and students, the size of the classroom, and the perception of peers influenced students' willingness to speak up in class. It is pointed out that both active and passive students agree that instructors are the main characters in classrooms. The method or style of teaching and positive traits of instructors play an important role in motivating and stimulating verbal engagement among students in the classroom. Students actively participated when they received an equal chance to participate in the classroom. When there was respect, small classes, student support, constructive feedback, and the application of theory to a real-life situation, participation levels in classes were higher. Moreover, teachers must consider and overcome those factors to give students a chance to communicate effectively in classroom participation.
Exploration and Practice of Virtual Simulation Laboratory Construction of Environmental Art Based on Computer Aid
Authors: Xu Yue
Published: February 2023

In the innovation and development of modern college education, the construction of virtual simulation laboratory for environmental art majors by using computer-aided technology can not only solve the problems existing in traditional experimental teaching, but also improve the comprehensive quality of students' management ability, practical ability, communication and coordination. In order to ensure the education and information technology can depth fusion, puts forward the relevant national education department for the construction of the virtual simulation experiment teaching center, asked around colleges in positive response at the same time, strictly abide by the bricks, fill with virtual reality, can not the basic principles of virtual reality, virtual simulation experiment teaching center of construction to promote. Therefore, this article in the understanding of virtual simulation lab construction and management status quo, on the basis of deep study the computer aided art as the core of environment simulation laboratory construction content and application functionality, clear the current environment art class teaching with virtual simulation laboratory management measures, to ensure well practice teaching activities.
The Impact of Industrial Policy on Industrial Structure from the Perspective of New Infrastructure Based on Experimental Analysis
Authors: Gu Hengda
Published: February 2023

This article theoretically describes the mechanism of the role of new infrastructure-related industrial policies on industrial structure optimization and upgrading and establishes a production function model for empirical analysis. This article innovatively collects the industrial policies introduced by Chinese provinces and cities from 1997-2021 and constructs a stock dataset of industrial policies related to new infrastructure construction. Combining the panel data on the scale of marketization, residential consumption, government expenditure, and human capital in each province and city, the generalized moment estimation method is used to test the role of national infrastructure construction-related industrial policies in promoting the rationalization and heightening of industrial structure, as well as the synergistic and complementary effects of national infrastructure construction-related industrial policies and the scale of marketization.The study finds that introducing and implementing new infrastructure-related industrial policies significantly contribute to the rationalization and heightening of industrial structure. The promotion effect of new infrastructure-related industrial policies on the optimization and upgrading of industrial structure is highly dependent on the degree of local marketization. Based on the above findings, the Chinese government should formulate and implement the new infrastructure-related industrial policies rationally based on the market mechanism and with the help of government capacity and policy tools to achieve industrial structure upgrading and market economy development.
Research on the reasons for the continued decline in corporate performance:evidence from SMEs of China
Authors: Liu Xiaoxia , Yang Yuting
Published: February 2023

Nowadays, the domestic economic situation is changing rapidly, and many small and medium-sized board listed companies have been in a state of long-term decline in performance due to the impact of the domestic and foreign economic environment and their own structure. The performance is in a state of continuous decline, which means that there are problems in the corporate governance structure and management methods. Over time, the market share of the company will decline, the competitiveness will be reduced, and the company's reputation will be affected, which is not conducive to the sustainable development of the company in the rising period. The establishment of small and medium-sized board is an important measure for the country to improve the capital market, so it is necessary to analyze and improve the related research on the performance decline of small and medium-sized board companies. This paper proposes research hypotheses on the basis of previous research. The research results show that technological innovation, executive shareholding ratio, executive compensation and enterprise size have a negative impact on the continuous decline of performance, fixed assets are positively related to the continuous decline of performance, and there is no significant correlation between costs and corporate performance. Finally, on the basis of theoretical analysis and empirical test, some suggestions are put forward to effectively avoid the continuous decline of performance and improve the performance of enterprises.
Optimal Capital Structure under Stochastic Interest Rates with Endogenous Default Barriers
Authors: Yang Xiaofeng , Tomasz Zastawniak
Published: February 2023

Based on the principle of maximization of the utility value for shareholders, we establish an optimal capital structure model under stochastic interest rates with improved endogenous default barriers by considering the tax and bankruptcy risk. From the numerical results, we find the drift and volatility of the firm’s log return, the average risk aversion of all the shareholders, the long term mean level of interest rate and the bond maturity are the key variables in determining optimal capital structure. We also find that the utility values behave as a concave function with bond principals. We can conclude that there exists an optimal amount of bond issuance to maximize the utility value of shareholders.
Research on the Matching Relationship between Supply and Demand of Medical Resources Based on Accessibility：A case study on Pudong New Area District in Shanghai
Authors: Qi Zheng , Wu Tianyan , Huang Qiang
Published: February 2023

Scientific evaluation of the spatial accessibility of medical facilities can effectively measure the relationship between the supply of medical resources and the needs of residents. Taking Shanghai Pudong New Area as an example, with the help of ArcGIS analysis tools, the community is used as the smallest research unit, considering the size of medical facilities, travel time and other factors, the improved Gaussian two-step mobile search method is used to analyze the spatial accessibility of medical facilities in Pudong New Area, and adopted Spatial autocorrelation analyzes the matching relationship between the supply of medical resources and the needs of residents. The results show that the accessibility of medical resources in Pudong New Area is unevenly distributed, presenting a dual-core spatial distribution, and the accessibility value is greatly affected by secondary and tertiary medical facilities; there is a positive relationship between the accessibility of medical facilities in Pudong New Area and the needs of residents The main urban area of Pudong New Area is rich in population density and medical resources, but there is still a shortage of medical resources. The southern region is lack of medical resources and the population density is low. In the future, we can optimize and optimize the stock of medical resources. Incremental site selection and improvement of the transportation network promote the rational distribution of medical resources.
Research on Performance Evaluation of Listed Companies Based on Value Creation
Authors: Zhao Hengxin
Published: February 2023

The goal of business operation is to create value and maximize shareholders' wealth. However, the current financial performance system still has certain defects, which cannot yet reflect the results of value creation comprehensively and make it difficult to examine the value creation ability of managers. Therefore, how to efficiently examine the value created by executives and reflect the true performance of executives will be the focus of future performance reform of enterprises. Based on the needs of value management of listed companies, this paper analyzes the key drivers affecting value creation and optimizes the financial performance evaluation system with appropriate correlation pointing indicators, hoping to guide corporate governance and improve the capital market investment and financing environment.
A Study on the Influencing Factors of Children-friendly Walking Space Perception in Elementary Schools
Authors: Zhang Fan , Zhang Qiangqiang , Wang Haoyu
Published: February 2023

In this paper, based on the concept of child-friendly primary school students aged 7-12 years and their parents as the object, selected five typical primary schools in Shenyang as research cases, conducted social questionnaires and interviews, combined with the existing space problems and children's needs characteristics of the primary school walkable space are divided into children safe evacuation section and activity-friendly section. The SP method was used to obtain the perceptual preferences of children and parents in two virtual learning space segments, and the influencing factors of their perceptual preferences were explored. The results showed that green vision rate, buffer space type, and walking space width were the key factors affecting children's sense of security in the safe evacuation area, and green vision rate had no significant effect on parents' preference choice. In the child-friendly section, color vision, building line rate, building transparency along the street floor, and play space Settings have positive effects on children's comfort, while the interface aspect ratio has no obvious effect on children's comfort.
Development of an online gamma radiation measurement system
Authors: Jiang YunRui , Lai WanChang , Lin HongJian , Wu PeiLian
Published: February 2023

Raw coal is often interspersed with rocks as well as soil fragments, so natural γ-radiation measurement is used for online detection of coal quality in the coal mining and processing production process. To solve the problems of system development, data acquisition and transmission and online calibration in online γ radiation measurement, an online γ radiation measurement system was developed based on ATMEGA8L microcontroller. The upper computer software developed with Qt realizes the functions of RS485 serial communication between the upper computer and the lower computer, online configuration of the instrument working mode, real-time display and recording of the measurement results, and recording and query of the working log. After testing, the software of the upper computer is easy to operate, friendly human-computer interaction, and can realize the required functions to meet the current requirements for the intelligence of production instruments, and the RSD of the measurement results of the system is 1.1% for long time operation, with good stability.
Design of a high-sensitivity and high-Q microwave sensor based on H-fractal metasurface structure
Authors: Hu Senyong , Cao Yunhao , Jin Shengxiao , Wu Wengang
Published: February 2023

This paper proposes a metasurface based on H-fractal unit structure, which exhibits three transmission resonance peaks. The simulation results show that these peaks are very sensitive to samples with different refractive indexes. The biggest frequency shift of these resonant peaks is about 2.6 GHz when the refractive index of samples changes by 1 and the quality factor(Q) values of the second and the third peak are up to 191.55 and 179.40 respectively, which has great application potential in the field of microwave sensing because its high-sensitivity and high-Q.
Research progress on crack propagation behavior of solid propellant
Authors: Wu Chengfeng , Fu Xuejin , Li Hongyan
Published: February 2023

Crack sprouting will lead to the mechanical properties of propellant degradation, and the additional combustion surface formed by crack propagation may cause over-pressurization, resulting in uneven combustion of propellant, significantly changing the thrust characteristics of the engine, reducing the range of the vehicle, and may even cause catastrophic accidents such as explosions. Therefore, the study of crack propagation law of solid rocket propellant pillar is an important basis to ensure the structural integrity and safety of the engine. In order to study the crack propagation pattern of propellant pillar under different working conditions, three aspects of propellant crack initiation criterion, crack propagation model, and crack propagation influencing factors are systematically reviewed. On this basis, the next research focus is sorted out, and it is considered that the construction of crack propagation model by establishing a multi-scale model, the characterization of crack propagation by using various test characterization means, and the analysis of damage evolution under the coupling of multiple working conditions will be the next research focus.
Design and implementation of the teaching system of Ideological and political theory course in universities based on multimedia technology
Authors: Liang Yun , Jun Weixu
Published: February 2023

Under the development trend of economic globalization, faced with the influence of economic trade and cultural exchanges among countries, it is necessary to strengthen the implementation of ideological and political theory courses in colleges and universities, integrate and use multimedia technology to build course teaching system, improve practical education and teaching level, optimize the comprehensive quality of college students, and show the advantages of multimedia technology. To improve the teaching effect of ideological and political theory courses in colleges and universities, and truly realize the educational goal of cultivating builders and successors of socialist cause, is in line with the demand of quality-oriented education reform in the new era. Based on the current situation of ideological and political course education in colleges and universities, this paper deeply discusses how to apply the multimedia technology to the ideological and political theory courses in colleges and universities based on the technical superiority of multimedia teaching.
Optical and thermal properties of Scanduim chalcogenides: DFT study
Authors: M. Meloud  , J. Zaououi
Published: February 2023

The full potential linearized augmented plane wave (FP-LAPW) calculations based on
density functional theory (DFT) is performed to study the structural, electronic, optical
and thermodynamic properties of Scanduim chalcogenides ScX (X = S, Se, Te) and them
ternary alloys at equilibrium as well as under pressure. The revised Perdew-Burke-Ernzerhof generalized gradient approximation (GGA) is used to calculate the structural properties. The electronic and optical properties are calculated employing the GGA and the modified Becke-Johnson (mBJ) approaches. Moreover, the calculated lattice parameters agree well with the experiment results. The NaCl structure (B1) of the scandium chalcogenides undergo under pressure a structural phase transition to CsCl-type (B2) and ZnS-type (B3). The binary and ternary alloys indicate a metallic behavior using GGA and mBJ scheme. The interband contribution to the optical properties is investigated and the parameters ε1(ω), ε2(ω) and n(ω) are calculated. A Quasi-harmonic Debye model is applied to calculate the thermal properties.
Structural, electronic, mechanical and optical properties of K2CuX (X=As, Sb) Ternary Compounds
Authors: Rubby Msilo  , Smith Musenti
Published: February 2023

Efficient materials with good optoelectronic properties are required for the good performance of photovoltaic devices. In this work, we present findings of a theoretical investigation of the structural, electronic, elastic, mechanical, and optical properties of K2CuX (X=As, Sb) ternary compounds for the first time. The computations were done within density functional theory (DFT) formalism as implemented in the quantum espresso (QE) software package. Equilibrium lattice constants of 11.87 and 12.44 a.u were computed for K2CuAs and K2CuSb, respectively.  The materials under study were found to be semiconducting with indirect bandgaps of 1.349 eV (K2CuAs) and 1.266 eV (K2CuSb). The valence band was found to majorly form through the hybridization of Cu-3d, As-2p, and Cu-5p orbitals in K2CuAs, and Cu-3d, Sb-3p, and Cu-5p orbitals in K2CuSb, while the conduction bands were majorly formed through hybridization of Cu-5p orbitals. The investigated materials were found to be mechanically stable at zero pressure, ductile and ionic. The optical absorption coefficient curves were found to cover the ultraviolet to visible (UV-Vis) regions thus making K2CuAs and K2CuSb good UV-Vis absorbers hence their potentiality for photovoltaic applications.
THE EFFECT OF HUMAN RESOURCE DEVELOPMENT ON EMPLOYEE PERFORMANCE AT PT. NUSANTARA PLANTATION V PEKANBARU
Authors: Zakaria  , Rahman Aisyah , Suyatni
Published: February 2023

The purpose of this study was to determine the effect of human resource development on employee performance. This research was conducted with the title "The Influence of Human Resource Development on Employee Performance at PT. Nusantara V Pekanbaru Plantation". The population of this study is only part of the data information that the average number of employees at PT. Perkebunan Nusantara V Pekanbaru about 153 people, the determination of the sample using the census technique method, namely the population was used as the research sample. Therefore, the sample used in this study were 42 respondents, drawn from the human resources, finance and accounting sections and the procurement and IT departments. Data collection techniques in this study used questionnaires and interviews. The data analysis in this study is descriptive analysis and simple linear regression analysis with SPSS version 25 application tools. The results show that partially human resource development variables have a positive and significant effect on employee performance at PT. Perkebunan Nusantara V Pekanbaru, and the results shown in simple linear regression show that the human resource development variable has a positive influence on employee performance at PT. Nusantara V Pekanbaru Plantation.
ISSUES OF INTEGRATION OF REGIONAL AND ALL-RUSSIAN DIGITAL PROFESSIONAL EDUCATIONAL PLATFORMS
Authors:   Penza State University, Gavrilova M.A. , Gavrilov K.G.
Published: February 2023

The article studies the problems of introducing digital educational platforms into the process of professional training of teachers and the participation of teachers in the work of digital educational systems. It gives an overview of the organi- zational and legal basis for the integration of «My School,» the all-Russian digital information system, with existing regional professional educational platforms. It defines the necessary directions of the integration process. The article states the need for the inclusion of the formation of competencies of work in the «My School» FSIS in the educational programs for teachers’ training, as well as the desirability of partial integration of digital educational systems of re- gional platforms and pedagogical universities with the methodological component of the «My School» FSIS.
PEDAGOGICAL CONDITIONS INFLUENCING THE PROCESS OF FORMATION OF THE LEGAL CULTURE OF FUTURE TEACHERS
Authors:   Institute of Psychology and Pedagogy of Education of Moscow City Pedagogical University, Tsitlidze N.B.
Published: February 2023

The article is devoted to the consideration of pedagogical conditions that affect the process of formation of the legal culture of future teachers.
DEVELOPMENT OF THE PROCESS OF ORGANIZING STEM-PROJECTS IN TEACHING PHYSICS IN SECONDARY SCHOOLS IN VIETNAM
Authors:   Moscow Region State University, Phan Thi Ha Linh , Kholina S.A.
Published: February 2023

STEM-education draws much attention not only in Vietnam but also in the world. The implementation of studying projects integrated with practical lessons is one of the effective forms of STEM-education. This article presents a brief definition of STEM-education, proposes the designing phases of a STEM-project in teaching physics and their application in developing the project «Production of electricity».
Pedagogía: notas para la reflexión
Authors: De Suárez Teresita
Published: February 2023

La pasividad, la inhibición, la negatividad y la indiferencia son formas de incomunicación, de aislamiento y hermetismo, típicas de un sistema pedagógico caduco.