bluuebunny/crossref_metadata_2025 huggingface dataset:
Improving jet pump installations designs for oil production
Authors: Shishkin Nickolai Dmitrievich , Marysheva Marina Aleksandrovna
Published: October 2024

The characteristics of jet pump installations are given, which are used mainly for low-yield wells in oil production whose flow rate is less than 10 m3/day. It is noted that jet pump installations have a relatively low efficiency of not exceeding 0.35, and it is almost equal to the efficiency of electric drive pump installations and downhole rod pump installations when extracting oil from wells with low flow rates of up to 20 m3/day. The advantages of jet pump installations over other types of downhole pumping installations in difficult oil production conditions are shown. With flow rates up to 150 m3/day. Costs for oil production using jet pump installations are minimal compared to other installations. A brief analysis of the designs of jet pumps, their main overall dimensions and weight is provided. A brief overview of scientific, technical and patent literature on jet pump installations is given. By changing the design of nozzles, confusers, diffusers, working chambers of jet pumps, as well as improving the jet pump installations as a whole when used in tandem with other types of well installations, their productivity, operating efficiency and reliability can be increased. It is noted that the parameters of jet pumps can be obtained by calculation based on the theory of mixing two flows, the theory of jet propagation in a mass of stationary or moving liquid and the mechanics of bodies of variable mass. The main design parameters of jet pump units are feed, pressure, ejection coefficient, power and efficiency. These parameters can also be determined experimentally. A laboratory jet pump unit has been developed. Experiments have shown that with an increase in the flow rate of the working fluid, the flow rate of the mixture and the working pressure, the ejection coefficient and efficiency decrease. In the future, experiments will be continued with various designs of jet pump elements.
Blood serum components as an indicator of the health status of herbivorous fish
Authors: Melyakina Elvira Ivanovna , Kryuchkov Victor Nikolaevich , Guliyev Ruslan Akifovich , Volkova Irina Vladimirovna , Dzhalmukhambetova Elena Azatullaevna
Published: October 2024

The results of studies of total protein and its fractions, as well as aminotransferases of blood serum of pond herbivorous fish are presented. Studies allow us to assess the activity of aminotransferases (alanine and aspartate aminotransferases), the activity of which in the blood serum somehow characterizes the condition and /or degree of damage to some organs of fish. Seasonal and age dynamics, as well as sex differences of the studied parameters in fish, have been established. Sex differences in these indicators are most noticeable in fish aged 0+ to 2 years. The data obtained allow us to judge the specific protein status, which differs in species characteristics and variability depending on the habitat conditions of fish, which gives an idea of the level of the physiological state of fish when grown in modern fish farms, and also allows us to assess the quality of the environment surrounding fish.
Research of methods and modern technical solutions for cleaning aerosol emissions from industry
Authors: Titova Liubov Mikhailovna , Svirina Svetlana Alekseevna , Kushner Guriy Alekseevich
Published: October 2024

The analysis and characterization of aerosol emissions into the atmosphere are given, the ways of formation of primary and secondary aerosols are considered. The process of atmospheric aging of aerosols, which has a negative impact on the environment, is considered. The functional links between aerosol emissions, their source and impact on climate and public health are presented. The possible influence of the reactions of liquid and solid aerosol particles on the properties of atmospheric air is considered. The main methods of purification of industrial aerosol emissions are considered: adsorption purification, thermal and catalytic neutralization, chemisorption and absorption purification. The ways of increasing the efficiency of adsorption processes, for example, the separation of adsorbent in the apparatus, are analyzed. The essence of the process of thermal neutralization of gas mixtures is described, it is established that thermal installations based on the direct combustion method work more efficiently when combining thermal and catalytic neutralization methods, designs of combined equipment are presented, and ways to increase the intensity of the apparatus are considered. The process of gas purification based on the absorption process is considered. It is determined that absorption plants for cleaning gases from harmful components are the most effective and efficient due to the high level of technical implementation of the process. The development and improvement of the main absorber equipment is aimed at achieving maximum cleaning efficiency with an optimal pressure drop that determines energy consumption. The analysis shows the negative impact of natural and anthropogenic aerosols on the environment. In order to correctly solve the problem, information on the sources, composition and properties of aerosols is needed to select the most effective and economically profitable cleaning method, which will help reduce the anthropogenic load on the atmosphere.
Cool signs in a modern Russian city
Authors: Shmeleva Tatyana Viktorovna
Published: October 2024

The article raises the problem of the comic in the modern urban onomasticon, the slang word cool is taken to designate this type of comic. We are talking not only about the names of city establishments, but also the visual component of the signs, which confirms their coolness , in the request for which the citizens, especially young people, are proved by a number of facts. An analysis of signboards in many Russian cities, which served as observational material, allows us to conclude that the “coolness style” includes techniques, of which two are considered in the article - the use of everyday dialogues as a name and the presentation of goods and services on signs as people behind the scenes. by combining their designations with terms of kinship, etiquette words, the formation of names, patronymics and surnames from them. At the same time, name-givers demonstrate mastery of all models of Russian surnames, including surnames of non-Russian origin. The active use of quasi-anthroponyms in the urban onomasticon is compared with such elements of classicism style as speaking surnames. In conclusion, the conclusions and significance of the comic in modern urban culture and the possibilities of the urban onomasticon to respond to this request by means of language and visual elements of the sign are formulated. Further study of cool signs will allow you to see their style in its entirety.
Fallas metodológicas básicas en la investigación en administración en México y otros países de América Latina
Authors: Galicia Monroy José Alfredo
Published: October 2024

El libro se constituye de una investigación científica dentro de las Ciencias de la Administración (CA). Esta determinó una serie de fallas metodológicas que son persistentes en trabajos de investigación desarrollados por investigadores noveles y profesionales en administración. El autor reconoce que estas desviaciones devienen de una formación investigativa deficiente en las CA. En adición, la obra contiene una serie de recomendaciones que pueden ayudar a mejorar el desarrollo de competencias investigativas de los estudiantes en este tipo de ciencia.
Redes de valor agro en Argentina
Authors: Santos Oliveira Gerardo
Published: October 2024

Las actividades propias del sector agro en sentido amplio están caracterizadas por enfrentar profundas transformaciones derivadas del impacto de la innovación tecnológica y su efecto sobre la competitividad y productividad, pero que, a su vez, generan efectos indirectos sobre la sostenibilidad, la gestión del conocimiento y la organización empresaria. Esta realidad genera efectos sobre los tipos y tiempos del agronegocio, donde el sector ya no es concebido solo como un proveedor de alimentos, sino que incorpora el rol de proveedor de insumos y combustibles de carácter biológico.
Esta nueva realidad requiere de la ampliación de los abordajes teóricos que nos permitan comprender con mayor profundidad aquellos fenómenos no cuantificados en el análisis clásico de la cadena de valor, de la red de valor o incluso de la red productiva.
Dicho esto, este artículo busca ubicar al lector en la situación problemática planteada y, a modo de fundamentación, en los inconvenientes que plantea el marco teórico disponible, así presentar una posible alternativa de análisis a partir de un modelo de red de valor para el sector agro.
Renuncia silenciosa
Authors: Salessi Solana Magalí
Published: October 2024

La pandemia por COVID-19 ha socavado muchos de los principios que regían el mundo del trabajo. Junto a la denominada gran renuncia, en el último año ha comenzado a observarse otro fenómeno preocupante, etiquetado como quiet quitting o renuncia silenciosa. Por tratarse de una problemática novedosa sobre la cual la investigación empírica es incipiente, el presente trabajo tiene como objetivo proporcionar algunas precisiones conceptuales en torno al constructo renuncia silenciosa y desarrollar supuestos teóricos sobre sus relaciones con otras formas de comportamiento organizacional que podrían emerger como predictores significativos. En este sentido, se centra en plantear hipotéticas vinculaciones con el cinismo organizacional, el arraigo laboral, la satisfacción laboral, la implicación en el trabajo, el compromiso y la justicia organizacional. El ensayo concluye con la sugerencia de algunas líneas de investigación que, a modo de agenda, pueden orientar próximos estudios en la temática.
El presente trabajo fue llevado a cabo en el marco del Programa de Proyectos para Investigadores Formados de la Universidad Católica de Santa Fe (Resolución CS N° 7608/24).
Effect of the Impurities on Drugs, Metabolism, and the Role of the Isoenzyme CYP3A4
Authors: Dreshaj A. , Dreshaj A. , Veseli D. , Sinanaj D. , Morina E. , Dehari S. , Dehari D.
Published: October 2024

Medicinal drugs have found great use in health treatment, and their use has increased after the COVID-19 pandemic. The health crisis caused by the coronavirus made the national authority for the control of medicinal drugs in Kosovo activates the institutional mechanisms for the control of drugs. Analyzing the excessive concentration of heavy metals in drugs and the adverse effects on the body since they reduce the positive effects of the drug. Methods. The research was conducted during the years 2020-2022 in Kosovo, the samples (over 30 patients) were studied, in 40 medical examinations, how the cytochrome P450 enzymatic system works and the impact on anti-inflammatory drugs. These drugs are metabolized by cytochrome CYP4502C9, which carries multiple inherited polymorphisms in the coding sequences, and by two varieties of this enzyme (cytochrome), CYP4502C9*2/3. Results. The presence of heavy metals in drugs is a concern related to neurotoxicity nephrotoxicity hepatic toxicity cardiovascular effects, immunotoxicity and carcinogenicity. The control of the content of elemental impurities is an important aspect of the quality assurance system of medicines and human health. Analytical studies of the amount of heavy metals in paracetamol samples X1 and X2 for the five metals studied, Arsenic in sample X1 showed a high presence of elements with a value of 5.07% among other metals. Nickel varies with a value of 4.91% in paracetamol X2 samples, the highest value for the analyzed plants. The analytical results of the studied medicinal plant "Matricaria Chamomilla" showed that the presence of Lead has a value of 3.7% compared to other metals in medicinal plants, while Mercury varies with 4.7%).Conclusions. Impurities in drugs often have unwanted or toxic effects on human health. Nowadays, knowledge about the negative effects of heavy metals is important for human health. Heavy metals enter the grass chain during the production process and impurities from natural raw materials.
Drain and Treat: A Rubber Dam Technique for Acute Periapical Abscess
Authors: Grover S. , Mala K. , D’Souza J.
Published: October 2024

Patients often report to the dental hospital with a complaint of toothache with extraoral swelling. Worried patients visit the dentist with a lot of apprehension. Acute dental infections with intraoral and extraoral swellings can be emergency and challenging to manage. Reduced mouth opening and severe pain may not allow the dentist to create an orthograde access to root canals. It ensues when the bacteria spread from the dental pulp to the surrounding periapical tissues accompanied by the formation of pus. If left untreated, these infections can be excruciatingly painful and pose a severe risk of spreading to facial spaces and finally, they may propagate to deep neck areas a ascend to intracranial sinuses. Hence, knowledge of its clinical management is of utmost importance. An acute periapical abscess has to be accurately diagnosed to render proper management of these maladies. Treating dentists should have a basic understanding of the pathophysiology, the suitable usage of antibiotics, the medical history of the patient, and standard treatment protocols. Therefore, this case report describes the management of an acute periapical abscess which was an emergency, and its conservative management.
Oral Clinical Manifestations in Patients with COVID-19: A Review
Authors: Dimova-Gabrovska M. , Shopova D. , Stamenova M.
Published: October 2024

One of the latest newly isolated diseases is COVID-19. COVID-19 is a highly contagious viral disease caused by SARS-CoV-2, a virus that belongs to the Coronaviridae family, Beta-coronavirus genus. To achieve the main purpose, a search was conducted in various databases (PubMed, Google Scholar, ResearchGate) and Internet sites with scientific Information by keywords: COVID-19, oral manifestations, oral pathology, orale Manifestationen, Läsionen der Mundschleimland, Geschmacksstörungen, Geruchsstörungen. The collected scientific Information is systematized according to 4 main criteria: etiology pathogenesis, oral manifestations, ways to improve the condition in the oral cavity, preventive measures.
The influence of the COVID-19 pandemic on pediatric hospitalizations for type 1 diabetes mellitus
Authors: Mănescu Măriuca , Mănescu Ion-Bogdan , Grama Alina
Published: October 2024

Objective

In this retrospective cohort study, we aimed to provide a snapshot of how the pandemic has affected pediatric type 1 diabetes mellitus (T1D) admissions in our hospital.

Methods

This study included 117 patients aged 0-18 classified based on period (pre-pandemic vs. pandemic period 2020-2022) and type of diagnosis at admission: new-onset T1D (nT1D) or diabetic ketoacidosis (DKA)-decompensated T1D. We investigated the effect of the COVID-19 pandemic on the demographic, clinical, and laboratory characteristics of these patients.

Results

Out of all T1D-related admissions, the proportion of admissions for nT1D increased compared to the pre-pandemic period: 71.6% vs 53.4%, p=0.048. Unrelated to the pandemic, the type of diagnosis at admission was associated with 1) the sex distribution (males – more nT1D admissions, females – more frequent DKA admissions, p=0.01), and 2) hospitalization duration (longer for nT1D admissions than for DKA-decompensated T1D admissions, p=0.001). Blood glucose and HbA1c levels were influenced neither by the pandemic period nor by the type of diagnosis. During the pandemic, a change in the T1D seasonality became apparent. A potential association pattern between new COVID-19 cases, number of T1D admissions, and stringency of restrictions was observed.

Conclusions

During the COVID-19 pandemic, the proportion of nT1D admissions increased, as well as the severity of DKA-decompensated T1D cases. In addition, the pandemic period brought about notable shifts in the seasonality of pediatric T1D.
Qualitative phytochemical screening and in vitro antioxidant activities of aqueous extracts of Rhaphiolepis bibas (Lour.) Galasso & Banfi
Authors: Kariuki Ibrahim Waweru , Ngugi Mathew , Maingi John
Published: October 2024

Reactive oxygen species causes harm to cell membranes and biomolecules, wherefore chronic diseases develop. Antioxidants scavenge such free radicals combating oxidative stress. This research aimed to determine the antioxidant potential of the aqueous stem bark, root and leaf extracts of Rhaphiolepis bibas against standards. DPPH radical scavenging activity was high from th stem bark extract at 72.33% with root extract at 65.85% and leaf extract at 55.91%, while ascorbic acid scavenged 89.53% of DPPH radicals. The leaf extract had the highest H2O2 scavenging activity of 91.92% with stem bark at 91.17% and the root extracts at 89.12%. The aqueous root extract of R. bibas had a significantly higher FRAP capacity in comparison to the leaf extracts and the stem bark. The abilities to chelate iron by the leaf extract were statistically higher compared to the root and stem bark extracts. Stem bark extracts had the highest phenol content of about 149.44 followed by the root extract at 141.14 and the least amount of phenol was found in the aqueous leaf extract having 73.012 Gallic acid equivalent/g. The root extracts had the highest total flavonoid 377.66-milligram quercetin equivalent/gram dry weight followed by stem bark extract at 255.72 and the least amount was found in aqueous leaf extract having 164.52 mgQE/g of sample dry weight. The existence of secondary metabolites linked to antioxidant action was shown by the qualitative phytochemical screening.
Considerations regarding the attitude of medical staff towards administrative risks within the Pathology Department
Authors: Popa Aurora Maria , Lazar Bianca Andreea , Marian Liviu Onoriu , Cotoi Ovidiu Simion , Voidăzan Septimiu
Published: October 2024

Objective

In the context of public health, there is a common misconception that only Romania’s system faces issues and generates societal dissatisfaction. However, globally, there is significant room for improvement, as the performance of the sector is often unsatisfactory. This paper presents findings from an exploratory study on the attitudes of medical personnel in pathology services towards managerial and administrative risks, supported by a survey that provides a wealth of useful information.

Methods

The survey encompassed a geographic area including the counties of Mureș, Harghita, Sibiu, and Alba, involving 12 healthcare units: 2 university hospitals, 2 county hospitals, and several municipal or town hospitals. These institutions housed anatomical pathology service structures staffed by approximately 240 physicians and assistants, with a ratio of 1 physician to 2.5 assistants. The questionnaire aimed to test four hypotheses through questions that invited respondents to select from formatted answers.

Results

Of the four hypotheses formulated and their corresponding items, only two were confirmed. This outcome suggests that the Romanian healthcare system is not unequivocally adaptable to the needs of medical product consumers. Specifically, the data indicate that hospitals face dire financial conditions amidst various challenges and vulnerabilities.

Conclusion

Differences of opinion between the two categories of respondents are evident in certain risk categories. This discrepancy arises from the specific nature of their activities and their respective contributions to ensuring the quality and efficiency of the service.
Determination of caffeine by micellar electrokinetic chromatography in different beverages
Authors: Uilăcan Alexandra , Stroia Denisa Gabriela , Hancu Gabriel
Published: October 2024

A fast, simple and cost-effective capillary electrophoresis (CE) method was developed for caffeine determination in different beverages (energy drinks, soft drinks). Because caffeine is neutral from electrophoretic point of view and migrates with the electroosmotic flow (EOF), micellar electrokinetic chromatography (MEKC) was chosen as the separation method. The optimum separation conditions consisted of 25 mM sodium tetraborate, 100 mM sodium dodecyl sulphate, pH 9.30, 20°C temperature, 20 kV voltage, 50 mbar/sec hydrodynamic injection, UV detection at 270 nm. Employing the optimized conditions caffeine was quantified in less than 3 minutes. The analytical performances of the method were verified in terms of accuracy, linearity, limit of detection and quantification, precision and robustness. The method was applied also to detect caffeine in coffee and tea. The advantage of MEKC over other analytical methods, particularly compared with the more frequently used HPLC methods, lies in its lower operating costs and higher environmental friendliness.
Helicobacter pylori and autoimmunity in atrophic gastritis - comparison of clinical, endoscopic and histopathological features
Authors: Filip Ana-Maria , Munteanu Sabrina-Nicoleta , Mocan Simona , Huțanu Dragoș , Pantea Monica , Negovan Anca
Published: October 2024

Objective

This study aims to investigate the clinical, endoscopic, biologic and histopathological differences between Helicobacter pylori-associated and autoimmune gastric atrophy.

Methods

A retrospective analysis was conducted on 95 patients diagnosed with either H. pylori-related corporal and antral atrophy (43 patients) or autoimmune corporal atrophic gastritis (52 patients).

Results

A significant male predisposition for H. pylori-associated atrophic changes in both the antrum and corpus regions (p=0.007, OR=3.24) was observed in comparison with autoimmune etiology of atrophy. While comorbidities and lifestyle factors showed similar distributions across groups, only unintentional self-reported weight loss demonstrated a significant association with H. pylori atrophy (p=0.0177, OR=3.94). Corporal erosions were strongly associated with antral and corporeal atrophic gastritis (p=0.04, OR=8.27), but the rest of mucosal lesions are comparable among groups. Interestingly, patients with H. pylori-related pangastric atrophy exhibited lower frequencies of altered triglyceride (p=0.018) and cholesterol (p=0.029) levels compared to the autoimmune group. Linear regression analysis identified low triglyceride levels as an independent predictor for H. pylori-associated antral and corporal atrophic gastritis (p=0.04) in endoscopic population with atrophy, but no hematological or clinical parameters were predictive for these changes.

Conclusions

Male patients are more likely to present with corpus atrophic gastritis associated with H. pylori infection than with an autoimmune etiology. Patients with atrophic gastritis tend to have similar clinical characteristics, except for dyslipidemia, which is more prevalent in those with H. pylori pangastritis. Corporal erosions are associated with active H. pylori infection in atrophic mucosa.
A Study on Improving the Innovativeness and Practicality of Traditional Embroidery Techniques Using Topological Structure Analysis
Authors: Wu Xiaoyu
Published: October 2024

Based on the continuous change of the market and the transformation of consumer demand, traditional embroidery technology is urgently in need of reform and innovation. This paper applies the topological structure to the computerized embroidery machine, which enables the mechanization and digitization of traditional embroidery. This paper employs the ICM method to concentrate on the topological level of the structure, utilizing the strategies of “material optimization,” “cross-section optimization,” and “shape optimization” to identify its continuity and microprocessibility and to incorporate the topological variables into the overall structure. We separate the low-level design variables from the topological variables, thereby creating more independent design variables. The structure of the presser foot and needle bar mechanism of the embroidery machine is optimized based on ICM topology. Researchers conduct simulation experiments on the optimized virtual prototype of the embroidery machine. A multidimensional analysis of embroidery products produced by the embroidery machine optimized based on ICM topology was conducted through a questionnaire survey. Consumers purchased 68.43% of the products in the category of “daily necessities,” 66.23% evaluated the practicality of the products, and 71.24% purchased the products because they “favor the traditional embroidery craftsmanship.” The above data shows that products made according to the method described in this paper are practical. The data mentioned above indicates that embroidery products created using the method outlined in this paper are useful in everyday life and do not damage traditional embroidery stitches.
Research on the Interactive Enhancement Method of Teaching Ideological and Political Education in Colleges and Universities Based on Machine Learning
Authors: Qi Jiabin , Jia Huihui , Niu Lirui , Nan Hongyao
Published: October 2024

The rapid development of augmented reality technology and the widespread popularization of devices have caused changes in traditional interaction methods. An iterative, interactive learning model based on online interactive learning theory and supported by augmented reality technology is proposed in this paper. Based on this, the study constructs a machine learning-based teaching interaction analysis process model, which ranks the features according to the SHAP value in order to select the best learning interaction behavioral features for studying the teaching effect of ideological and political education in colleges and universities, and uses XGBoost to train the sampled behavioral data. Finally, a teaching experiment was carried out with the compulsory public course of Ideological and Moral Cultivation and the Foundation of Law in College X to verify the teaching effect of the model and the impact of each learning interaction behavior on students. The results show that from the beginning to the end of the semester, the student activity rate increased from 0.0520 to 0.0785, the teacher-student behavioral transition rate increased from 0.0054 to 0.1101, and the learner interaction rate also increased from 0.0088 to 0.0637. It indicates that the teaching course of ideological and political education in colleges and universities has become more effective and appealing in the augmented reality iterative interactive learning environment.
Analysis of digital research hotspots in Chinese museums based on bibliometry and kano
Authors: Song Qichao , Tang Xin , Liu Yao , Feng Qiao
Published: October 2024

Against the increasing level of science and technology, such as the Internet of Things and Artificial Intelligence, the intermingling of museums and science and technology has gradually become essential in developing Chinese museums. Firstly, this study applies the bibliometric method to draw a knowledge map with the help of the CNKI database and uses CiteSpace software to visualize and analyze the research hotspots in terms of the number of publications, authors, institutions, keywords, hotspots, and so on. Secondly, a user satisfaction survey using the Kano model is conducted to confirm the reliability of the research hotspots. Finally, the trend in domestic museum digitization research is summarized according to the results of the analysis. The bibliometric and kano model analysis shows that technological innovation is still dominant in Chinese museum digitization research. Still, the sustainable development of museums in the future needs to fully consider user preference and engagement so that the exhibition experience will become a hotspot in museum digitization research. Analyzing the trajectory of Chinese museum digitization research and exploring its evolution path, core themes, and emerging important areas can provide a reference for subsequent museum digitization research and design.
Analysis of the strategy implementation and learning effect influence of artificial intelligence technology in the digital education reform
Authors: Liu Zhongran
Published: October 2024

With the continuous penetration of AI-enabled and the deep integration of education, digital education reform is facing the historical issue of transformation to intelligence. Artificial intelligence-enabled digital education reform involves utilizing the core competencies of AI technology, and this study constructs a reform path for AI education by considering three aspects: educational intelligence links, teaching methods and assessment systems. This study suggests a teacher training path based on the competency model to support the implementation of AI digital education reform strategies, as teachers are the primary drivers of AI education reform. It also proposes specific methods for implementing education reform strategies from four aspects: digital education reform, educational pursuit, cultivation and continuity, and integration and collision. The regression coefficients of teacher development, AI strategies, and learning effectiveness were all significantly positive when the effects on learning effectiveness were analyzed, and all ps were less than 0.05. Meanwhile, implementing the AI education reform strategy in this paper resulted in an increase of 4.99 and 9.26 respectively in academic achievement and motivation, respectively, compared to the post-test mean of traditional education. The p-value on academic performance and motivation is less than 0.005. This paper’s AI digital education reform strategy effectively improves students’ learning effectiveness, promotes the integration and development of AI and education reform, and provides useful reference and inspiration for the construction of digital education reform.
A study of stratified optimization of college physical education course effects under the perspective of cluster analysis
Authors: Wang Xindong , Yin Zhimeng
Published: October 2024

Due to the different physical fitness of college students, they have different acceptance abilities for college physical education courses, so a unified teaching method cannot be applied among many students. The article focuses on the student stratification model based on learning characteristics and takes the university physical education course as an example to design a university physical education teaching stratification method based on the improved K-means clustering algorithm with initialization denoising and center-of-mass optimization. Taking the physical education test data of the 2021~2023 sessions of a university as the research object, K-means clustering analysis was carried out on the 8-item physical fitness test data to realize the stratification of students’ learning situation. The experimental results show that the method of this paper clusters 14619 students into three layers, and the cluster centroid distances of Cluster 1~3 are 20.35, 16.97, and 18.39, respectively. The maximum standardized mutual information values are 6.820, 3.105, and 2.931, respectively, and the results of the stratification are reasonable and easy to interpret, and they can provide effective references for the development of personalized physical education for school students.
Research on Three-dimensional Animation Simulation and Virtual Tourism Experience Design of Historical Buildings and Natural Landscapes in Henan Area
Authors: Du Yiru
Published: October 2024

This paper proposes a virtual tourism system based on three-dimensional technology, using virtual tourism as an entry point for exploring tourism in Henan. Using three-dimensional panoramic technology to look at the design of the virtual tourism system and figure out what it needs. Then, using three-dimensional panoramic technology in four steps: material splicing, post-processing, panoramic roaming, and release roaming. This will help the virtual tourist attractions system grow. We constructed a satisfaction index system using the hierarchical analysis method, which includes 5 first-level evaluation indexes and 20 second-level evaluation indexes. These indexes include platform experience, immersion experience, emotional experience, knowledge experience, and social experience. We then determined the weights of these indexes, summarized the factors that influence the satisfaction of the “virtual tourism” experience, and carried out supplementary optimization of the virtual system based on these factors. We summarize the factors influencing the satisfaction of the “virtual tourism” experience and optimize the virtual system based on these factors to enhance the satisfaction of tourists with the virtual tourism system. By analyzing the experimental data, we discovered that the virtual tourism system differs from traditional tourism in terms of user experience. Specifically, the distance value of “surprise” for the subjects in the virtual tourism system is 0.68, and their tendency to “surprise” is higher. This demonstrates that the virtual tour system’s performance has improved in terms of experience.
Authors: Lestari Winda , Satria Pramudana Komang Agus
Published: October 2024

This research aims to analyze the role of customer trust in mediating the influence of e-WOM and celebrity endorser credibility on purchase intentions for MS Glow products in Denpasar City. This research was conducted in Denpasar City with a sample size of 130 respondents using a purposive sampling technique. The data analysis technique used is PLS (Partial Least Square). The research results show that e-WOM, celebrity endorser credibility, and customer trust have a positive and significant effect on purchase intention. E-WOM and celebrity endorser credibility have a positive and significant effect on customer trust. Customer trust partially mediates the influence of e-WOM and celebrity endorser credibility on purchase intentions for MS Glow products in Denpasar City. The implications of this research can be material for consideration and input for marketers of MS Glow beauty products in increasing purchase intentions by considering e-WOM variables, celebrity endorser credibility, and customer trust.
My som Indianery. Kowbojskie kapelusze, indiańskie pióropusze ze Śląskiem w tle
Authors: Kurek Jacek
Published: October 2024

Wielu śląskich muzyków bluesowych to zdeklarowani miłośnicy westernu, stanowiącego część kultury amerykańskiej, w której obszarze powstał także blues. Chętnie w gwarze śląskiej powtarzane słowa: „My som Indianery” artykułują tożsamość Ślązaków. Sugerują podobieństwo losów z rodzimymi mieszkańcami Ameryki Północnej, czyli poczucie wyobcowania na własnej ziemi oraz jej „kolonizację” przez obcych. W tym horyzoncie blues stawał się przestrzenią wyrażania śląskich wartości. Śląsk okazał się żyzną glebą dla bluesa, a blues muzyką obrazującą śląskość.
Szlak Śląskiego Bluesa, czyli bluesowa turystyka kulturowa
Authors: Rott Dariusz
Published: October 2024

W swoim artykule autor scharakteryzował Szlak Śląskiego Bluesa w kontekście kulturowej pamięci o bluesie. Szlak ten stanowi unikatowy w skali międzynarodowej projekt multimedialny oraz interkulturowy, który pozwala poznać dzieje śląskiego bluesa. Można zapoznać się z historią śląskich klubów muzycznych funkcjonujących przez ostatnie pięćdziesiąt lat (m.in. Akant, Blus, Kocynder, Kwadraty, Marchołt) oraz Hali Parkowej i Spodka, o których opowiadają Irek Dudek, Jan Chojnacki, Beno Otręba, Sebastian Riedel, Leszek Winder i in.,a także z sylwetkami muzyków. Szlak można zwiedzać, wykorzystując specjalna aplikację, która pozwala zaplanować trasę zwiedzania, przeczytać historię wybranego miejsca, obejrzeć różnorodne materiały multimedialne (fotografie, materiały wideo) oraz posłuchać wspomnień artystów i dziennikarzy. Pozwala to na lepsze zrozumienie dziedzictwa kulturowego Śląska w zakresie współczesnej kultury muzycznej.
Poczuć czy zrozumieć bluesa? O duchowości, emocjonalności bluesa i jego społeczno-kulturowej funkcji
Authors: Al Azab-Ruszowska Aya
Published: October 2024

Muzyka bluesowa ściśle związana jest z emocjonalnością. Nie bez powodu ukuto powiedzenie: „czuć bluesa”. Od etymologii słowa, po historię powstania tego gatunku znajdujemy potwierdzenie tego związku. Blues koncentruje się na trudnościach życiowych, wprowadza odbiorcę w świat uczuć, czarnego cierpienia i radości. Dokonania współczesnych badaczy Black Studies podkreślają: by móc odpowiednio zanalizować muzykę bluesową, trzeba „poczuć ducha”, to znaczy, interpretator musi wczuć się w moc czarnej muzyki, reagując zarówno na jej rytm, jak i na wiarę w doświadczenie, które ona potwierdza. Czy zatem emocjonalna płaszczyzna bluesa wyklucza warunek rozumienia go w szerszym kontekście? A może wręcz przeciwnie – by w pełni poczuć bluesa, najpierw należy poznać jego historię i znaczenie? Celami artykułu są wskazanie współzależności aspektów kognitywnego i metafizycznego muzyki bluesowej oraz wyjaśnienie, dlaczego wykonawcy i słuchacze muzyki bluesowej spoza afroamerykańskiego kręgu kulturowego powinni poznać historię, tropy i funkcje bluesa.
Modlitwa jako forma bluesowej wypowiedzi lirycznej
Authors: Regiewicz Adam
Published: October 2024

Niepodważalnym rysem muzyki bluesowej jest jej religijność oraz wyznaniowość powiązana z osobistym tonem wypowiedzi lirycznej. Postawa konfesyjna jest wpisana w osobiste doświadczenie podmiotu performatywnego, czego wyrazem zarówno warstwa tekstowa, jak również skorelowane z nią rozwiązania muzyczne. Wyrastający z tradycji negro spirits blues operuje odpowiednią estetyką muzyczną: obniżone stopnie skali bluesowej korespondują ze skargami-zaśpiewami, wyrażającymi ból ludzkiej egzystencji. Zarysowane tu przestrzenie wypowiedzi: muzycznej, egzystencjalnej, emocjonalnej, osobistej spotykają się w modlitwie rozumianej jako forma wypowiedzi liryczno-muzycznej. Podjęta w artykule analiza dwóch piosenek: Modlitwy Tadeusza Nalepy i zespołu Breakout oraz Modlitwy III Dżemu, wpisuje utwory w rozważania gatunkowe, sytuację komunikacyjną wynikającą z przyjętej konwencji oraz strukturę wyrażającą się poprzez trzy elementy: inwokację, petycję i „owoc” (fructus).
Wędrówka za „dziwnym” malarzem (w trzydziestą rocznicę śmierci Ryszarda Riedla)
Authors: Żyła Mateusz
Published: October 2024

Autor, w trzydziestą rocznicę śmierci legendarnego wokalisty zespołu Dżem – Ryszarda Riedla, podejmuje próbę analizy i interpretacji tekstu Kazimierza Galasia pt. Ballada o dziwnym malarzu, w trakcie której przywołuje konteksty: historyczny, społeczny i biograficzny. Autor odczytuje utwór poprzez odwołania do dziejów bohemy paryskiej, ale również uwzględnia nowsze teksty kultury (film Twój Vincent), a także myśli filozoficzne i socjologiczne, sformułowane m.in. przez Olivię Laing oraz Byung-Chul Hana. W efekcie Ballada o dziwnym malarzu okazuje się nie tylko liryczną historią artysty-cygana / autsajdera, lecz również literacko-muzycznym obrazem samotności jako choroby, tudzież lustrem dla pędzącego społeczeństwa osiągnięć, unikającego bólu i pozbawionego zdolności zadziwienia.
"To Bring You My Love". P.J. Harvey dekonstruuje mity bluesa
Authors: Kuźnicki Sławomir
Published: October 2024

Niniejszy artykuł stanowi próbę interpretacji wybranych pieśni P.J. Harvey z płyty To Bring You My Love z 1995 roku. Na płycie tej piosenkarka mierzy się z tradycją bluesa, głównie z jego literackimi mitami. W swych poetyckich tekstach Harvey podkreśla ogromny ładunek erotyzmu i przemocy drzemiący w mitologiach bluesa; raz typowo męski, kiedy indziej podkreślający emancypacyjny pierwiastek kobiecy. Na takiej bazie udaje się artystce zarówno przedefiniować owe mitologie, jak i niejako przywrócić temu gatunkowi jego kobiecy wymiar.
"Georgia on my mind". Blues w Gruzji wczoraj i dziś
Authors: Nowakowska Magdalena
Published: October 2024

Blues to muzyka silniejsza niż niewola. Być może właśnie to sprawiło, że blues na swojej drodze do globalnej i transkulturalnej kariery nie tylko pokonał społeczne oraz rasowe bariery i zerwał łańcuchy narzucone jego oryginalnym twórcom, ale też z łatwością przeniknął nawet tak dobrze ufortyfikowane granice, jak żelazna kurtyna, zyskując gorących zwolenników w miejscach tak odległych geograficznie, jak Gruzja. Mimo iż blues cieszy się w Gruzji znaczną popularnością, to jego historia i rozwój jako lokalnego gatunku muzycznego pozostają jak dotąd zjawiskiem nieopisanym w literaturze fachowej, a materiały źródłowe są rozproszone i fragmentaryczne. W konsekwencji, podejmując próbę zgłębienia owych procesów, trzeba oprzeć się przede wszystkim na bezpośrednich relacjach osób oraz źródłach w postaci nagrań, okładek płyt, wywiadów i innych materiałów archiwalnych. W artykule wykorzystano informacje zebrane w toku wywiadów bezpośrednich przeprowadzonych w marcu 2023 roku z krytykami muzycznymi: Koką Tskitiszwilim i Laszą Gabunią oraz z muzykami: Dawidem Manidżaszwilim, Paulem Rimplem i Tamazem Tkinwalelim.
Ways of defining digital competences and their components in the EU, EC and UNESCO recommendations
Authors: Vrabec Norbert , Furtáková Lucia
Published: October 2024

The aim of this article is to comprehensively examine the ways in which digital competences and their components are defined in the recommendations of the European Union (EU), the European Commission (EC) and the United Nations Educational, Scientific and Cultural Organization (UNESCO). The study delves into the evolving landscape of digital competences and highlights commonalities and differences in the frameworks proposed by these influential bodies. Through a comparative analysis, the paper seeks to contribute to a deeper understanding of conceptualisations of digital competences, which may facilitate the development of a unified framework that can guide educational policies and practices.
Sztuczna inteligencja a inteligencja językowa. Eksperyment poprawnościowy czatu GPT-4
Authors: Urzędowska Aleksandra
Published: October 2024

Tekst podejmuje próbę oceny poprawności językowej algorytmów lingwistycznych czatu GPT-4. Przeprowadzone i opisane eksperymenty odnoszą się do opisu funkcjonalności czatu jako wysoko inteligentnej pod względem języka w perspektywie poprawności, sprawności i kultury językowej. Przez odniesienie do gardnerowskiego rozumienia inteligencji językowej oraz jego krytyków opisano umiejętności korzystania ze znormalizowanego języka przez sztuczną inteligencję, a także oznaczono błędy w danych i procesie kodowania modeli językowych w czacie GPT-4.
Monetyzacja narcystycznej intymności. Analiza twórczości Amouranth na platformie Twitch
Authors: Ziółkowski Jakub
Published: October 2024

Tekst porusza problem seksualizacji przestrzeni cyfrowej i wirtualizacji cielesności. Punktem wyjścia dla tych rozważań autor uczynił selfie jako praktykę odnoszącą się do pojęcia kultury narcyzmu – zaproponowanego najpierw przez Christophera Lascha (The Culture of Narcissism, 1979), a następnie rozwiniętego, w kontekście cyfrowego medium, przez Magdalenę Szpunar (Kultura cyfrowego narcyzmu, 2016). Analiza ilościowo-jakościowa twórczości Amouranth na platformie Twitch, z wykorzystaniem narzędzia analitycznego Twitch Tracker, jest próbą zastosowania zaproponowanej teorii w praktyce.
Pio(sen)ka… – inaczej o audialności i „miejscach pustych”. Agnieszka Osiecka (w) filmie i dla filmu
Authors: Grodź Iwona
Published: October 2024

Tematem eseju są piosenki Agnieszki Osieckiej (1936–1997), napisane „dla” lub wykorzystane „w” filmach. Będąc jeszcze na studiach dziennikarskich w Warszawie, poetka pisała recenzje filmowe. Ponadto studiowała w Łodzi w szkole filmowej (do 1962 roku). Zrealizowała też kilka etiud studenckich (w latach 1958–1961). Jednak, jak pokazał czas, jej losy potoczyły się w innym kierunku. Celem rozważań jest wyjaśnienie rozumienia sformułowania: „miejsca puste” w kontekście twórczości autorki Wielkiej wody, a efektem dociekań określenie specyfiki muzyczno‑ werbalnej wypowiedzi Osieckiej. Metodologia podyktowana jest przyjęciem perspektywy hermeneutycznej i zastosowaniem narzędzi komparatystyki interdyscyplinarnej.
Potencjał turystyczny Wałbrzycha w świetle badań ankietowych
Authors: Cerek Janusz
Published: October 2024

Celem artykułu jest określenie potencjału turystycznego Wałbrzycha w kontekście walorów turystycznych miasta. Zastosowano metodę kwerendy i analizy literatury naukowej oraz metodę ikonograficzną i kartograficzną. Przeprowadzano obserwację terenu w wybranych dzielnicach i wybranych obiektach Wałbrzycha. Zastosowano metodę badań ankietowych za pomocą ankiety internetowej. Wybrano grupę 100 turystów, którzy odwiedzili Wałbrzych. Stwierdzono, że wydarzenia historyczne i rozwój przemysłu ukształtowały obecne walory turystyczne miasta. Badania ankietowe wykazały, że Wałbrzych posiada znaczny potencjał turystyczny. Głównie w skali regionalnej. Stwierdzono, że potencjał turystyczny miasta nie jest w pełni wykorzystany. Mimo to, dzięki różnorodnym walorom turystycznym Wałbrzych może w przyszłości stać się bardziej rozpoznawalną destynacją turystyczną na świecie. Odpowiednie wykorzystanie walorów turystycznych miasta może mieć pozytywny wpływ na rozwój turystyki w Wałbrzychu i rozwój lokalny.
Characterization of lingual microbiota in pediatric geographic tongue
Authors: You Yi , He Yuan , Huang Peicheng
Published: October 2024

Background. Geographic tongue is an oral mucosal lesion affecting the tongue. The association between geographic tongue and the mucosal microbiota in children remains unclear.
Method. To characterize the feature of lingual microbiota in pediatric geographic tongue, lingual swabs were collected from lesion sites and healthy sites of 25 patients with geographic tongue (14 males and 11 females; age 5.21 ±2.94 years) and 19 controls (10 males and 9 females; age 5.31±2.82 years). DNA was extracted and the 16S rRNA was amplificated, sequenced and analyzed.
Results. The lingual microbiota composition was significantly different between children with geographic tongue and the healthy cohort; Streptobacillus was reduced in geographic tongue, while Catonella, Bacillus and Oribacterium were overrepresented. When the lesions and the normal mucosa were compared, an increased abundance of Prevotella oris was observed.
Conclusion. Our results provided new insight into the association between oral microbiota and pediatric geographic tongue.
Effect of Isopropanol on Optical Properties of Fe3O4/ZnO/Graphene Quantum Dots (GQDs) Nanocomposite
Authors: Widiawati Sintha , Astuti Astuti
Published: October 2024

This study aims to investigate the impact of isopropanol on the optical properties of the Fe₃O₄/ZnO/GQDs nanocomposite. The synthesis of Fe₃O₄ and ZnO nanoparticles was conducted using the coprecipitation method, followed by the synthesis of GQDs using the hydrothermal method with varying concentrations of isopropanol. Subsequently, the Fe₃O₄/ZnO nanocomposite was combined with GQDs synthesized using the sonication method. The amalgamation of magnetic and luminescent materials holds promise for applications in the biomedical field, particularly in bioimaging. XRD data analysis revealed crystal structure alterations attributed to the incorporation of carbon elements in both ZnO and Fe₃O₄. The TEM results indicated a particle size of 16.2 nm for the Fe₃O₄/ZnO/GQDs nanocomposite with a 10 ml isopropanol variation. Identified phases from the XRD analysis include Fe₃O₄, ZnO, and GQDs. UV-Vis spectroscopy detected distinctive absorbance peaks at wavelengths of 323.7 nm, 333.0 nm, 329.9 nm, and 323.9 nm. Moreover, the energy gap exhibited an increase with escalating concentrations of isopropanol in the GQDs. Photoluminescence analysis yielded robust, broad emission bands characterized by orange and red luminescence.