bluuebunny/crossref_metadata_2025 huggingface dataset:
Abiotic factors as a long-term stressor for the vendace fisheries in Lake Ińsko (European Central Plains Ecoregion, Poland)
Authors: Czerniejewski Przemysław , Strzelczak Agnieszka , Machula Sylwia , Martinez-Bracero Moises
Published: June 2023

The population of vendace ( Coregonus albula L., 1758) in many European lakes, especially in Central Europe, have declined recently as a result of lake eutrophication. The aim of the study was to (i) determine many years’ changes in the volume of vendace catches and specific physicochemical parameters of water, (ii) determine correlations between particular physicochemical parameters, and (iii) indicate hydrochemical parameters which show the greatest impact on the volume of vendace catches on the example of Lake Ińsko located in the European Central Plains Ecoregion. Principal Component Analysis (PCA) was applied to indicate the most important hydrochemical variables impact on vendace fisheries. Among them, after redundancy analysis, 6 were taken into account (total nitrogen, N-NO3, N-NO2, total phosphorus, oxygen concentration, temperature). Time series analysis revealed an increasing trend in nutrients concentration in lake. Analyses showed that fish catches were mostly negatively connected to nitrogen and phosphorus concentration. Trend analysis, based on the above-mentioned parameters, can provide prediction of vendace catches for further years with the predictability at the level of around 60% accuracy. The results of this study are very crucial to the vendace fisheries and for formulating fisheries management policies in the future in the changing hydrochemical condition of lakes.
Using 1D and 2D computer models when predicting hydrodynamic and morphological parameters of a boulder block ramp: Poniczanka stream, Carpathians
Authors: Plesiński Karol K. , Radecki-Pawlik Artur , Rivera-Trejo Fabian
Published: June 2023

When modelling flow and/or sediment transport in streams and rivers, one must frequently use the computer software of differing levels of complexity. The level of sophistication, accuracy, and quality of results are the parameters by which models can be classified as being 1D, 2D, or 3D; it seems certain that in the future, there will also be 4D and 5D models. However, the results obtained from very sophisticated models are frequently questionable, and designers in the field of hydraulic structures must have considerable experience distinguishing important information from irrelevant information. Thus, this paper aims to investigate the effect of the selected boulder block ramp hydraulic structure at Poniczanka stream on the bed-load transport. We evaluated sediment transport using the CCHE2D numerical model. We analysed several scenarios depending on the river bed type (erodible, non-erodible, rocky) and examined the rock blocks used for hydraulic structure construction. The obtained results were compared with the Hjulström and the Shields graph, which are a classic approach for identifying fluvial processes in river channels. In addition to these two methods, numerical modelling using the 1D HEC-RAS (Hydrologic Engineering Center’s River Analysis System) modelling were conducted, which included the determination of horizontal and vertical changes to the river bed morphology of the examined section of river reach as well as providing the basic hydrodynamics parameters which, from the practical point of view, designers involved in the process of designing ramps could use.
Spatial planning for reducing the epidemic risk – the state of knowledge and practice from the perspective of the COVID-19 pandemic
Authors: Perwenis Paulina , Szewrański Szymon
Published: June 2023

The ongoing public health crisis caused by the COVID-19 pandemic has highlighted the link between community safety and health and the urban environment and has raised many challenges for cities that want to continue to provide a safe living environment. The Coronavirus pandemic has provoked many controversy and questions about its impact on urban forms. The goal of research was to document the status of knowledge and emerging research paths in the year following the COVID pandemic’s disclosure. The study includes a scoping review to determine the relationship between urban planning and the epidemic risk. Literature research showed that compact structures, because of their proximity to health centers, give higher epidemic safety. Accessibility to vital services prepares cities and their residents for unanticipated threats. The promotion of a dispersion strategy, with social distance regulations already in place, can lead to the rise of prejudice and xenophobia. Urban planners and architects should also pay more attention to urban geometry, building configuration, communication networks, or green spaces. In order to strengthen urban resilience, appropriate infrastructure, the implementation of new technologies, and the construction of urban systems and structures are essential.
Biometric indicators of growth and development of Lolium perenne and Trifolium repens in terms of recultivation of soil contaminated with petroleum
Authors: Pawluśkiewicz Bogumiła , Małuszyńska Ilona , Małuszyński Marcin , Dąbrowski Piotr , Gnatowski Tomasz
Published: June 2023

The aim of the research was to determine the factors defining the growth and development of Lolium perenne and Trifolium repens upon petroleum contamination. The top layer of clay soil contaminated with petroleum products resulting from an oil pipeline failure was collected for the tests. The control was the same type of uncontaminated soil with the addition of, under laboratory conditions, tissue paper. The research was conducted in two stages. The first concerned the germination process and seedlings parameters (Petri dishes). The germination energy ( GE) and the germination capacity ( GC) of seeds were determined. The seedling’s development was also evaluated based on ‘WinRhizo PRO 2009’ software. Then, in the second stage, pot tests were carried out, where the growth and development of species in the first year after sowing were temporarily measured. The parameters studied were the number, height, green and dry masses of the plants. A Gompertz regression model describing seed species germination and number species as time dependent dynamic was applied. The data were analysed statistically using variance analysis (ANOVA) and the PCA (principal component analysis) method. The results of our study indicated that admixture of petroleum into the soil does not seriously affect the development dynamics of Lolium perenne seedlings. The diesel oil contamination mostly affects the germination of the Trifolium repens by a statistically significant increase of the maximum value of germination and increasing the maximum growth rate.
Assessment of the reliability of the operation of a sewage treatment plant using Monte Carlo simulation
Authors: Migdał Karolina , Operacz Agnieszka , Vaskina Iryna , Śliz Paulina , Tavares Jorge , Almeida Adelaide , Migdał Michał
Published: June 2023

The aim of the study was to model the operation of a wastewater treatment plant using the Monte Carlo method and selected probability distributions of random variables. Pollutant indices in treated wastewater were analysed, such as: biological oxygen demand ( BOD 5), chemical oxygen demand ( COD Cr), total suspended solids ( TSS), total nitrogen (N tot), total phosphorus (P tot). The preliminary analysis of pollution indicators series included the: calculation of descriptive statistics and assessment of biological degradability of wastewater. The consistency of the theoretical distributions with the empirical ones was assessed using Anderson–Darling statistics. The best-fitting statistical distributions were selected using the percent bias criterion. Based on the calculations performed, it was found that the analysed indicators of pollution in treated wastewater were characterised by an average variability of composition for BOD 5, COD Cr and TSS, and a high variability of composition for N tot and P tot. The best fitted distribution was log-normal for BOD 5, TSS, N tot and P tot and general extreme values for COD Cr. The simulation carried out using the Monte-Carlo method confirmed that there may be problems associated with the reduction of nutrients (N tot and P tot) the analysed wastewater treatment plant. Results of values obtained of the risk values of negative control of wastewater treatment plant operation for biogenic compounds, different from 1, indicate that the number of exceedances at the outflow may be higher than the acceptable one.
First data on the genetic structure of Trachemys scripta populations in Sicily (Testudines: Emydidae)
Authors: Vecchioni Luca , Marrone Federico , Arculeo Marco , Vamberger Melita
Published: June 2023

The pond slider Trachemys scripta is one of the most widespread alien turtle species in the world. Its unregulated trade and the consequent uncontrolled releases into the wild led to negative impacts on the native turtles of the invaded areas. In Italy, alien pond sliders are widely spread, and the occurrence of hatchlings and well-established populations is known in some areas. However, to date in Sicily, only a single female of Trachemys scripta laying eggs was reported. Besides that, nothing is known about the actual reproduction success and establishment of self-sustaining T. scripta populations in Sicily. Therefore, based on 14 previously characterised highly polymorphic microsatellite loci, we aimed to unravel if the alien turtles successfully reproduce in Sicily, in both natural and semi-natural areas (i.e., lake “Biviere di Gela” and “Parco d’Orléans”, respectively). Our results show a clear structuring of the two studied populations. Several full-sibling relationships between the sampled turtles were found, suggesting actual reproduction in the wild of the pond sliders in Sicily. However, further sampling is desirable since no parent-offspring relationships were observed in the studied populations. Due to our results, systematic monitoring of alien pond sliders in the whole of Sicily is crucial for better planning of mitigation strategies in order to protect the native biota of Sicilian inland waters.
Photosynthesis, yielding and quality of pea seeds depending on the row spacing and sowing density
Authors: Tobiasz-Salach Renata E. , Jańczak-Pieniążek Marta , Migut Dagmara , Bobrecka-Jamro Dorota , Stadnik Barbara , Kačániová Miroslava
Published: June 2023

Pea is one of the most important legumes grown in the world. The seeds are used for food production and animal feed. The problem with its cultivation is the low yield and sensitivity to the course of the weather. The important factor is to determine the optimal sowing rate and row spacing, especially for new cultivars of pea. Therefore, research was undertaken to assess the effect of row spacing and sowing density on selected physiological parameters, yielding, and structural elements of peas cv. ‘Batuta’ in Poland. The results of the research showed that the row spacing and sowing density determine the values of plant physiological parameters, yield of pea seeds and protein content. The increase in plant density in the canopy caused a decrease in the measured parameters of chlorophyll fluorescence, such as maximum quantum yield of photosystem II ( Fv/Fm) and maximum quantum yield of primary photochemistry ( Fv/F0) and performance index ( PI). The leaf area index ( LAI) was lower with a wider row spacing. Row spacing and plant density determined yield of pea seeds, number of pods and seeds per plant and weight of seeds per plant. Wider row spacing resulted in a decrease in the protein content in seeds, while an increase in sowing density from 70 to 110 m 2 caused its increase. The course of the weather during the vegetation period of plants significantly influenced the obtained results.
Determination of sowing density and row spacing on the susceptibility of lupine seeds to mechanical damage
Authors: Migut Dagmara , Tobiasz-Salach Renata E. , Stadnik Barbara , Kuźniar Piotr
Published: June 2023

Appropriate agrotechnical measures make it possible to optimise plant cultivation and obtain yields of the highest quality with an appropriate economic production index. The aim of the study was to evaluate different sowing density and row spacing on the morphological and mechanical properties of white lupine ( Lupinus albus L.) seeds. The field experiment was conducted at the Experimental Station for Variety Evaluation in Przecław (50°11'25.2" N, 21°28'55.0" E). The experiment was established at two row spacings (15 cm and 30 cm) and three sowing densities (60, 75, 90 plants per m 2). Mechanical parameters evaluated included destructive force FD (N), relative deformation DR (%) and destructive energy ED (mJ). Seed morphological properties such as weight, length and width were also assessed. Sphericity was also calculated. In the present study, improvements in the mechanical properties of the seeds were obtained by increasing the plant density per unit area of the experiment. In the case of morphological characteristics, only the weight of the analysed lupine seeds changed significantly as a result of row spacing. On the other hand, sowing density did not significantly affect morphological traits. of white lupine seeds. Apart from the spacing and sowing density of plants, the weather conditions in particular years of research were an important factor determining the properties of seeds. Determining the optimum sowing density and row spacing in the field contributes to the optimisation of the production process. Quasi-static mechanical tests are often used to obtain reasonable data on the physical properties of plant materials.
The relationship between productivity and some drought tolerance indicators for several cultivars of bread wheat
Authors: Barhom Lubna , Touchan Hayat
Published: June 2023

The research was conducted in Tartous Governorate during the two agricultural seasons (2018–2019 and 2019–2020) under control conditions, the aim of the research is to study the relationship between the productivity of five promising strains of bread wheat (‘ACSAD 1256’, ‘Douma 58847’, ‘Douma 58585’, ‘Douma 64453’, ‘ACSAD 1149’) and two cultivars (‘Douma 2’ and ‘Douma 4’) and some quantitative indicators of drought: stress tolerance index ( STI), mean of productivity ( MP), modified stress tolerance index ( MSTI), and relative yield ( RY). Cultivation was carried out in pots filled with light sandy silty soil, and three treatments of 70, 50, and 30% of the field capacity were applied in addition to the control and with three replications for each treatment. The strains ‘Douma 58585’ and ‘Douma 58847’ gave high yield values for grain in the two agricultural seasons. It was also found that there were significant differences between the two seasons in yield between the control and drought stress factors and drought tolerance indicators, such as stress tolerance index, modified stress tolerance index ( MSTI), mean of productivity ( MP), and relative yield ( RY). On the other hand, a positive and strong relationship was found between STI, MSTI, and MP in both treatments and both seasons. The research concluded that the best indicators, which were related to the productivity, whether in the control or transactions and in the two growing seasons together, are STI and MP, which are promising indicators in the classification of stress-tolerant cultivars or strains.
The Ideological and Political Education Model of College Students Based on Probability Theory and Statistics
Authors: Xuan Wangwei
Published: June 2023

This article uses the theory of probability and statistics to evaluate the thinking dynamics of college students to understand the psychological state of college students. First, the paper uses a web crawler to crawl and analyze the official micro articles. Using the method of probability statistics and the K-mean clustering method, we can understand the psychological state of college students in real time. The results of this experiment show that the current hot topics can be obtained within a certain period by using the statistical method of vocabulary display and clustering. The purpose of this paper is to propose corresponding countermeasures and approaches for the ideological and political work of college graduates. This model has a positive effect on cultivating college students’ values and ways of thinking.
Application of modular mathematical modeling in intelligent design of 3D digital substation
Authors: Guo Wei , Chen Xiaomin , Lin Xiaoning , Chen Xilong
Published: June 2023

The construction of modular digital smart grid, as a result, the complexity of the power grid is increasing and new technologies and schemes are emerging, more sophisticated design means are needed. Therefore, the author puts forward the research on the intelligent design of three-dimensional digital substation. The emergence of 3D design has changed the status quo of difficult collaboration among multiple disciplines under the traditional design mode, and improved the level of substation design from the perspective of life-cycle management. Firstly, the characteristics of digital collaborative design are analyzed, the construction of 3D model library of equipment is explained, and the intelligent auxiliary control system of substation is described, taking a project as an example, after checking the electrification distance, it can be found that the electrification distance between the camera arranged in the 220kV power distribution unit area and the lightning arrester of the outgoing line does not meet the requirements, and the number of equipment is 3, the application of three-dimensional design is described from the aspects of video monitoring system, automatic fire extinguishing system, etc, its application in the front end equipment layout, model retrieval, collision inspection between safety distance and foundation, buried pipe design, material statistics and other dimensions of these systems were shown in detail, the method of 3D design is deeply studied and applied to the practical engineering design of high voltage substation. The space characteristics of 3D design can be used to realize complex underground pipeline layout, cable optimal layout, collision inspection, construction simulation, visual display, etc.
The Application Optimization of Project based Learning Design in Ideological and Political Education in Colleges and Universities Based on ARCS Model
Authors: Hong Juan
Published: June 2023

The author uses the ARCS model in a combination of ideological and political education and classroom teaching in colleges and universities, and the theory of the ARCS model is based on theory and based on the ARCS model, and related ideas are proposed in this article. teaching in the halls of ideological and political discipline. First of all, 460 questions were divided from the questionnaire database, 440 questions were returned, and 95.7%, the author analyzes the motivation problems of college students in the process of ideological and political learning, and then takes the ARCS motivation model as the framework, from the perspective of motivation analysis, attention, relevance, confidence and satisfaction, the paper puts forward corresponding motivation stimulation strategies, finally, it combines the ARCS model with relevant teaching, and analyzes the case. Practice has proved that ARCS model has a good fit with the teaching of ideological and political courses, which can effectively improve the level of students’ motivation to learn ideological and political courses, and thus improve the learning efficiency.
Simulation and Characteristic analysis of college music teaching based on nonlinear equation
Authors: Huang Haiyan , Yuan Wenwen
Published: June 2023

In order to understand the nonlinear equation, the author puts forward a research on college music teaching simulation and feature analysis. In the basic music education, the main form of music education is classroom teaching. As “prospective teachers” who are about to step into their posts, music normal students should not only have systematic professional knowledge, but also have good teaching skills. In the author’s research, a questionnaire survey was conducted on the students of music teachers’ college in Grade 09 and Grade 10 who participated in the simulation teaching, and interviews were also conducted with the teachers and assistant teachers of the simulation teaching. Through the review and analysis of literature, as well as the summary of practical teaching during the period of serving as a music simulation teaching assistant, the deficiencies of music normal students’ classroom teaching skills are found out, through thinking and analyzing its influencing factors, reasonable suggestions for improvement are put forward. From the summary and analysis of the survey results, the factors that affect the poor mastery of classroom teaching skills in simulation teaching mainly include the following aspects: 1, First, students themselves; 2, Teaching; 3, Teachers. From the practice of music simulation teaching, six reasonable suggestions are summarized, namely: 1, Correct learning attitude and role play; 2, Increase the preparation time to enhance the effectiveness of questions; 3, Emphasizing the proper use of multimedia in music noumenon; 4, Strengthen theoretical study and expand the content of observation; 5, Enrich the content of standardized evaluation of teaching mode; 6, Improve the allocation of teachers. The six suggestions put forward can promote the training of music classroom teaching skills in normal universities.
The discrimination of college music teaching level based on wave equation
Authors: Wang Aiping
Published: June 2023

In order to improve the teaching level of college music teachers, in this essay the discrimination of college music teaching level based on the wave equation is put forward. In this study, the advantages of pattern recognition are utilized to establish a college music teaching level evaluation model based on wave equation. The wave equation is adopted to replace the complex function representation in the traditional statistical method, so as to reduce the influence of subjective factors on teaching level evaluation and explore the potential factor correlation in the evaluation process. The linear fuzzy indivisible samples are mapped to high dimensional space to make them linearly divisible, which avoids the traditional process from induction to deduction in essence and simplifies the classification process of nonlinear problems. Structural risk minimization theory ensures global optimization of segmentation and reduces expected risk. The results of this study can be combined with existing research methods to enhance the objectivity of evaluation methods and the accuracy of evaluation results, which has certain reference significance for improving teachers’ teaching level and promoting the improvement of teaching quality.
The Efficiency of Resource Allocation in Higher Education in India Based on Dea-Tobit Model
Authors: Guo Hongxia
Published: June 2023

Higher education in India has grown rapidly since independence, becoming the world’s largest higher education country after the United States. In the research, the basic theory of higher education resource allocation efficiency was described. Then the regional distribution of higher education resources, the current situation of inputs and outputs in the central region were described. Then DEA analysis was used to evaluate the efficiency of higher education resources in the central region and projection analysis, and Tobit model was used to test the factors influencing the efficiency of higher education allocation in the central region. The efficiency evaluation and projection analysis of higher education resources in central region were conducted by using DEA analysis, and the Tobit model was used to test the factors influencing the efficiency of higher education allocation in central region. The empirical results show that the resource allocation efficiency of higher education in central region is not determined by education funding alone, but depends on the optimization of resource input combination.
The application of KANO Model in the design of cultural creative products
Authors: Wang Wen
Published: June 2023

In order to improve visitors’ satisfaction with the red cultural creative products of Fang Zhimin Memorial Hall and promote the dissemination of Fang Zhimin’s red revolutionary spirit, in this essay, the KANO model research method is used as the basic framework and the visitor data is used as the basis to explore the innovative design preferences and perceptual demand elements of visitors to the red cultural creative products of Fang Zhimin Memorial Hall. In view of the cultural attributes of the red cultural creative products of Fang Zhimin Memorial Hall, in this essay the visitors’ preferences and preferences are used, and the three-level method of cultural research theory is used to establish the design points of cultural creative products. Finally, a series of cultural creative products as the material carrier of Fang Zhimin’s red revolutionary spirit are designed and studied to promote the diversified development of red culture.
Hydrodynamic Model of Hydraulic Engineering Based on Trigonometric Function Relation Equation
Authors: Liu Hongbo , Jian Haoran
Published: June 2023

In order to explore the application of fluid mechanics technology in water conservancy and hydropower stations, the author proposes the study of hydraulic engineering fluid mechanics model based on trigonometric function relationship equation. According to standard k- ε Double equation and Reynolds time average (N-S) equation, given the runner boundary conditions, establish the mathematical model of the internal flow of the hydraulic turbine. Through CFD simulation technology, the runner of hydraulic turbine is numerically simulated to obtain the velocity distribution and blade pressure distribution inside the runner, movable guide vane and fixed guide vane, the reliability of the design is improved, and the application of CFD technology in hydropower project is analyzed with an example. The results show that, when the diameter of guide vane distribution circle is 4760mm, the scheme is optimal, and the relative efficiency under the optimal working condition is 96.35%. The flow of the modified runner from the inlet of the volute to the outlet of the draft tube is very stable under the optimal working condition, and there is no obvious vortex, especially there is no obvious vortex belt and vortex at the outlet of the runner; There is no obvious vortex in the draft tube, the flow on both sides of the pier is very uniform, and the flow on one side is not significantly greater than that on the other side, which fully shows that the flow performance of the modified runner is good. After reconstruction, the runner outlet flow field is good, and the internal flow line of the draft tube is smooth. The application prospect of hydrodynamic algorithm for hydraulic engineering is relatively broad.
Application of Nonlinear Differential Equation in Electronic Commerce
Authors: Xiao Xiao
Published: June 2023

The author analyzes the network marketing model under the e-commerce mode through the marketing function under the nonlinear differential equation, through the research, it is found that the four variables of commodity price, advertising investment, sales model design investment and logistics investment are the key explanatory variables of sales volume of marketing network, among them, the price of goods has the greatest impact on online marketing, secondly, advertising investment, logistics investment and design investment have less impact.
Physical characteristics analysis of judo athletes based on multiple regression equation
Authors: Yang Xiuli , Lu Min
Published: June 2023

Judo is a skills-led sport, which has higher requirements on the athletes’ skills, physical ability, intelligence and psychology, but the athletes’ physical characteristics are still the basis of competitive ability. In this article, 107 male judo athletes were selected as the investigation object, their body shape indexes and some physical quality indexes were measured, the independent sample multiple regression method and T-test were applied to compare and analyze the elite and non-elite athletes, the youth and adult athletes, and the standardized typical discriminant function of athletes’ sports grade was established by stepwise discriminant analysis. Thus, we have a comprehensive understanding of the physical characteristics of the men's judo athletes and provide a reliable basis for the training and selection of basic coaches.
Analysis of News Communication Law Based on PSR Model
Authors: Zhuang Jie
Published: June 2023

Based on the PSR model, the author proposes a research on news communication. PSR is a model proposed by OECD for system pressure, state and response analysis. On the basis of in-depth analysis of various factors in the process of coordinated development of the social, economic and natural environment composite system, the author constructs a kind of PSR composite model, by using the theory and method of system dynamics, the sustainable development of social, economic and environmental systems is studied, and the knowledge atlas is used to describe and evaluate the current situation and development trend of the education of news communication discipline, conduct a comprehensive and visual analysis of journalism and communication education research to show the frontier, hot spots, knowledge base and cooperation network of the discipline's education research, and try to clarify the relationship and interaction between various studies.
Formative Assessment of College English Teaching Based on the CLA Model
Authors: Yuan Suwen
Published: June 2023

Based on the CLA model, this paper discusses the autonomous role of formative assessment in students’ English teaching. This paper conducts a statistical analysis of the formative evaluation of English teaching among 40 students in the experimental group during the teaching period of 20 weeks. Research shows that 1) the independent learning behavior, consciousness, motivation and other aspects of the experimental group students have been significantly improved. Results Compared with the control group, there were significant differences in each dimension (P<0.05). (2) The writing skills of the experimental group have been greatly improved. The experimental group was statistically significant compared with the control group (P<0.05). Through the investigation of English teaching, it is found that formative assessment plays a prominent role in improving English teaching. The formative evaluation of English teaching based on the CLA model will promote improving English teaching performance.
The application of graph theory teaching method in ideological and political education of discrete mathematics
Authors: Wu Yanping , Lv Fangfang , Li Meng
Published: June 2023

In order to fully implement curriculum ideology and politics in the current education and teaching work, it is extremely necessary to integrate curriculum ideology and politics with “discrete mathematics”. This article discusses the simple possibilities of teaching “mathematical decision” combined ideological and political education and training, so “mathematical decision” can know the same practice as ideological and political education, mutual support and mutual support. Because mathematics is an easy subject for computer education, teachers should deeply explore ideological and political issues when defining mathematics subjects, guide them with ideological and political education content in the teaching process, and play in the main activities of the curriculum. Those. In this article, the author mainly talks about the problems of creating an ideological and political curriculum for teaching inequality and the problems in the teaching process, proposes the established educational standards for determining the content of mathematics education, and aims to develop a theoretical and political basis for determining the content of mathematics education. Provide mathematics education through a combination of online and offline methods to integrate ideological and political education with the teaching of other professional subjects.
Influencing Factors of Ideological and Political Construction Work based on VSBPC Model
Authors: Li Meng , Wu Yanping , Lv Fangfang
Published: June 2023

This article will analyze the current ideological and political issues in vocational education and will use the VSBPC model as a starting point to analyze them all. Philosophical and political concepts, fundamental ideas, beliefs, mindsets, management needs and interests about the distribution of money. Religion and Politics is an important battle between religion and politics in colleges and universities and an important way for college students to develop ideas and politics. To better understand the influence of ideology and culture on college and university campuses, this article examines 1,323 college students at 13 universities nationwide and uses questionnaires to assess college students’ abilities. performance and analysis of ideological and political constructions. Research shows successful thinking and leadership development in Chinese colleges and universities. Most college students have a clear understanding of the purpose of ideological and political education, are able to understand and understand the importance of science and political education, and are interested in ideological and political research. Those. Further analysis shows that factors such as college students’ personal characteristics, learning process, curriculum, and teachers have a unique and unique influence on the formation of ideological and political education.
Possibilities of Using Low-Density C–C Composites for Thermal Protection of Small Unmanned Aerial Vehicles
Authors: Yanko Taras , Datsenko Roman , Karpenko Hanna
Published: June 2023

The study demonstrates the possibilities of using, as well as the features associated with the use of, unmanned aerial vehicles (UAVs) for military and peaceful purposes. Information is provided on the need to use components that would contribute towards ensuring thermal protection against modern laser weapons. The requirements for such materials are given, according to the field of application of the UAV. An analysis of the available materials that can be used to create thermal protection of UAVs against laser weapons is provided. The thermophysical characteristics of various materials are presented. The work presents technological features of production and properties of low-density carbon–carbon composite materials (CCCM). It is proposed to consider the prospects of using CCCM materials for not only the UAV structural components but also other purposes.
Exploring self-regulated writing strategies: A comparison between paragraphs and essays
Authors: Sari Ratih Novita , Umamah Atik , Anggraini Merliyani Putri , Arianto M. Affandi , Kurniasih Kurniasih , Mukminatien Nur
Published: June 2023

Writing requires a complex skill, and thus students need to regulate themselves in employing the appropriate strategies to achieve good writing performance. The present research investigated Self-Regulated Writing (SRW) strategies used by EFL (English as a Foreign Language) university students. It contrasted the students' strategies related to the complex structure of the texts (i.e., paragraphs and essays) and students’ writing performance. The data information came from two separate sets of self-regulated learning strategy questionnaire, as well as writing outcomes of the students. Descriptive statistics and the Mann-Whitney U test were utilized to evaluate the data. The six dimensions of SRW strategies were extensively utilized in paragraph and essay writings. The six dimensions include motive, method, time, performance, physical environment, and social environment. Interestingly, the social environment dimension had the highest mean score, showing that the students needed assistance from their peers and available learning resources. Meanwhile, the motive dimension obtained the lowest mean in both paragraph and essay writings. Furthermore, the analysis showed no significant statistical difference in using SRW strategies in writing paragraphs and essays except in the method dimension. The difference in strategy use based on achievement was also not significant. The results indicate that the students applied similar SRW strategies in paragraph and essay writings regardless of their proficiency levels. Pedagogical implications and recommendations for future research are also further discussed in the article.
Negotiating the challenges in speaking English for Indonesian undergraduate students in an ESL university
Authors: Winnie Winnie , Leong Hugh John , Badiozaman Ida Fatimawati , Yap Alyssa
Published: June 2023

In Indonesia, English is not widely used for communication. Hence, Indonesian high school graduates who desire to study abroad may encounter difficulties communicating in English. One of the destination countries Indonesian students choose to study in is Malaysia. When studying in Malaysia, some may transition from EFL (English as a Foreign Language) to ESL (English as a Second Language) speakers as they are required to speak English more frequently, especially in academic contexts. Thus, this study was conducted to investigate the challenges of speaking English for Indonesian undergraduate students, the contributing factors to the challenges, and the strategies used by the students to navigate the challenges. A number of 15 Indonesian EFL undergraduate students still registered as active students in an ESL university in Malaysia participated in this study. Data was collected via semi-structured interviews, transcribed, and thematically analysed. The findings were presented thematically with narrative excerpts to support them. The results indicated some challenges faced when students adjusted themselves in their higher education institution, including their psychological reactions, speaking academic English, and online learning. Therefore, to help EFL students be more prepared to speak English for academic contexts in an ESL environment, stakeholders in the education sector in Indonesia should consider providing more actions to focus on improving the English-speaking skills of students.
Eclectic approach: A search for more effective assessment ways to meet EFL assessment principles
Authors: Thamrin Nur Sehang , Madya Suwarsih , Putro Nur Hidayanto Pancoro Setyo , Mustakim Siti Salina , Hassan Aminuddin , Retnawati Heri
Published: June 2023

The current EFL curriculum for high schools in Indonesia demands integrating cognitive, affective, and psychomotor domains in assessment. Therefore, teachers must consider these domains in designing assessment instruments and use them, including in a full-online class. In this type of class, they must choose effective methods with principled eclecticism that meet the assessment principles. This study examines the teachers’ assessment process, from constructing the assessment devices to implementing the test in virtual classrooms. The qualitative research approach was used to explore the online-based assessments involving 16 English teachers recruited through convenience sampling techniques. Accordingly, the data were collected using virtual semi-structured interviews through a WhatsApp call. The data were analysed descriptively through a thematic analysis integrated with an interactive technique to locate and identify common patterns of meaning in a data set. The findings show that teachers used several methods to design their tests in the planning stage, considering several aspects based on the eclectic approach principles for effective assessment practices. However, teachers need more assessment literacy regarding their knowledge of test quality. This research employed qualitative data from a small number of teachers, so future studies that include more teachers from different locations and consider different viewpoints, including those of students, families, and policymakers, on how to evaluate student achievement virtually are recommended.
“Will they listen to me?” Investigating the utilization of audio feedback in higher education
Authors: Saputra Dwi Bayu , Arianto M. Affandi , Saputra Eko
Published: June 2023

Many studies have discussed the importance of technology in delivering feedback to students’ assignments since its deployment provides convenience, timeliness, rich information, asynchronous discussion, and social presence. However, the effectiveness of audio feedback has received very scant investigation in the context of higher education in Indonesia. To fill such an empirical void, this exploratory sequential mixed method probes the students’ perceptions towards the use of audio feedback. Thirty-two undergraduate students from one of the public universities in Bengkulu, Indonesia, majoring in Early Childhood and Studies and taking English as a compulsory subject, participated in this study. Three data collection techniques were deployed to triangulate the data. A questionnaire was distributed to examine students’ perceptions of audio feedback, followed by a freeform writing and semi-structured interview to draw more pictures of the students’ experiences of this feedback mode. The results show that even though all participants in this study had never received this type of feedback, most participants had positive perceptions of using audio feedback. They mentioned they got thorough, detailed, and personal feedback, so they felt engaged in the learning processes. This finding is expected to enrich the knowledge of the effectiveness of audio feedback and to encourage eager teaching practitioners to use it in their teaching processes, as it could increase students’ engagement in the learning process.
Rhetorical structures, strategies, and linguistic features of problem statement to promote a teaching writing model
Authors: Rustipa Katharina , Purwanto Sugeng , Rozi Fahrur
Published: June 2023

Studies about rhetorical moves in the introduction section have been widely conducted. However, the studies focusing on the research problem statement is still limited. This current study investigated the rhetorical structures, strategies, and linguistic features of the problem statement written by undergraduate students, which aimed to contribute to the teaching model in teaching academic writing. This research was a qualitative case study belonging to genre analysis, using Swale’s CARS model. Thirty undergraduate students’ problem statement texts were explored, and interviewers were further conducted to collect the data. The results indicated that nine types of rhetorical structures were employed, most of which were characterized as incomplete. The rhetorical strategies employed by the students were making a centrality claim, making topic generalizations, reviewing previous research, indicating a gap, establishing need and problem, continuing a tradition, outlining purposes, and announcing the state of the present research. Specific linguistic features were used in each move and step although the students admitted that they had lack of knowledge with linguistic features. Based on the research finding, a Critical Genre-Based model for teaching problem statements in writing is proposed because this model has facilitative effect on consciousness-raising of the genre’s rhetorical structure.
Editorial: Desarrollo económico y cambio climático, una perspectiva espacial para Latinoamérica
Authors: Castells-Quintana David
Published: June 2023

El año que cursamos, 2020, sin lugar a dudas y como consecuencia de la pandemia ocasionada por la COVID – 19 se ha tornado complejo, presentando escenarios catastróficos para la mayoría de países en el mundo. Si bien es cierto, en proyección, la sociedad se prepara para enfrentar crisis económicas y sociales quizá, nunca antes vividas; sin embargo, no se puede olvidar que durante los últimos años hemos estado inmersos en crisis progresivas que podrían tener consecuencias aún mayores para todos quienes habitamos el planeta tierra, uno de ellos y no solo a criterio de quien escribe, es el cambio climático, temática que abordaré a manera de reflexión desde una perspectiva espacial para Latinoamerica.
Fragilidad financiera en el sistema bancario privado de Ecuador
Authors: Muñoz-Upegui Dimitri , Acosta-González Nicolás
Published: June 2023

El presente trabajo identifica los principales determinantes de fragilidad financiera en el sector bancario privado. Se utiliza el análisis de componentes principales para reducción de dimensiones y posteriormente un modelo logit para estimar la probabilidad de fragilidad financiera. Se encuentra que resultado fiscal deficitario y el aumento del tamaño del segmento crediticio con respecto a la cartera total son las principales explicaciones para un incremento en la probabilidad de vulnerabilidad del sector bancario privado.
Análisis de riesgo financiero en el sector de fabricación de otros productos minerales no metálicos del Ecuador
Authors: Vaca Siguenza Alexander Javier , Orellana Osorio Iván
Published: June 2023

En la presente investigación se analiza el riesgo financiero (insolvencia, liquidez y de mercado), en el sector de la fabricación de otros productos minerales no metálicos en el periodo 2007 – 2017. Con la aplicación de metodologías como Ohlson y Altman, en el caso de Insolvencia, un modelo Logit y Probit en liquidez y para el riesgo de mercado el modelo matemático Capital Asset Pricing Model CAPM, se tendrá como resultado tendencias y comportamientos de los riesgos financieros, así como información de variables estadísticas y probabilísticas. Para este análisis se tomó de la Superintendencia de Compañías su base datos como fuente de información; el 2008 y 2016 presentan los indicadores con un mayor riesgo: en Altman una puntuación de 5,646 (zona gris) y en Ohlson 10,06% coincidiendo que son los años más riesgoso. En el análisis de riego de mercado el sector de fabricación de productos minerales no metálicos obtuvo 1,2806 el mismo que expresa que con una variación de 1% en el rendimiento de mercado este variaría en 1,2806%. Con respecto a la liquidez de sector existe un alto riesgo en años como el 2008,2010 y encabezando 2015, siendo las microempresas las más afectadas. Por lo cual esta investigación ofrece información relevante a los distintos grupos de interés, incentivando la inversión y fomentando el apoyo gubernamental en situaciones de riesgo.
El modelo del ciclo de vida del producto desde una perspectiva en las ventas del periodo 2016 – 2018 en el sector calzado de la ciudad de Ambato
Authors: Robayo Anthony , Valverde Julio , Castro Juan
Published: June 2023

En base a la detección de las necesidades insatisfechas, las empresas comienzan a desarrollar productos que deben enfrentar diversos escenarios de índole económico y comercial en su evolución dentro del mercado. Bajo esta concepción, se examinaron las etapas del ciclo de vida del producto, la ubicación de las diferentes líneas, zonas y canales comerciales, en una de las empresas más relevantes del sector de calzado en la provincia de Tungurahua, líder en la producción. Se utilizaron los informes de ventas de los años 2016, 2017 y 2018 para el desarrollo del modelo logístico de crecimiento poblacional, con esto se demostró la aprobación de la vida limitada de los productos y la estacionalidad de ventas con el cálculo del coeficiente Fisher con un resultado de: 0.08338 debido a la ausencia de relación lineal entre las variables. En conjunto estos hallazgos sugieren que, en el calzado escolar, relax y deportivo se impulse la innovación que promueva diseños y productos vanguardistas como exigencia del mercado.