bluuebunny/crossref_metadata_2025 huggingface dataset:
Problems of domestic school natural science education, patriotism promotion and their influence on the training of medical professionals
Authors: Bogdanov N. A. , Aniskina A. P.
Published: July 2023

Aim. To identify problems of domestic natural science education and patriotism promotion (as a motivational personality component), which negatively affect the professional training of health professionals.

Material and methods. When working on the article, we used the following methods: theoretical — analysis of modern legal documents of secondary general education, analysis of recommended educational literature on subjects, and empirical — analysis of the experience of biology teachers in modern conditions according to the recommended programs of disciplines and standards; analysis of the results of the Unified State Exam (USE) for 2021-2022 and scientific generalization.

Results. An analysis of the main problems of natural science education at the present time is presented. The authors consider the most significant of them to be a change in the content of school education, an unacceptable reduction in hours for natural science disciplines, ignoring the domestic tradition and didactic principles of science and systematization, practical experience accumulated by domestic teachers and methodologists in the preparation of programs and textbooks. The reasons for the lack of special knowledge and objective thinking in a large part of students are considered, which is confirmed by the USE for the period 2015-2022. It is pointed out that it is practically impossible to carry out a systematic mastering of the content of an educational subject and the development of mental skills, based on modern textbooks. The combination of these problems has led to a decrease in the development and educational potential of the natural sciences and the quality of education in general.

Conclusion. The article suggests possible ways to overcome this undesirable trend, substantiates the need to rethink the importance of school science education as a resource for the development of science, the national economy, medicine and the defense industry. There is a need to create an "image of the future" among students as a system-forming factor in the social and cultural development of Russian society.
Multivariate Asymmetric Distributions of Copula Related Random Variables
Authors: Sheikhi Ayyub , Arad Freshteh , Mesiar Radko
Published: July 2023

It is known that normal distribution plays an important role in analysing symmetric data. However, this symmetric assumption may not hold in many real word and in such cases, asymmetric distribution, including skew normal distribution, are known as the best alternative. Constructing asymmetric distributions is carried out using the conditional/selection approach of several independent variable conditioning on other set of variables and this approach does not work well when the independence between variablesviolated. In this work we construct an asymmetric distribution when variables are dependent using a copula. Specifically, we consider the random vectors X and Y are connected using a copula function CX,Y and we study the selection distribution Z = (X|Y ∈ T ).We present some special cases of our proposed distribution, among them, multivariate skew-normal distribution. Some properties such as moments and moment generating function are investigated. Also, numerical analysis including simulation study as well asa real data set analysis are presented for illustration.
A leafy thief that steals chloroplasts but cannot keep them
Authors: Laetz Elise , Palau Laia Burgués
Published: July 2023

The ability to steal functional chloroplasts from algae and retain them as endosymbionts is unique in the animal kingdom, found only in some sacoglossan sea slugs and a few species of rhabdocoel flatworms (Trench 1969, van Steenkiste et al., 2019). This ability has been termed functional kleptoplasty (Rumpho, et al., 2011). In sacoglossan slugs, kleptoplasts (stolen chloroplasts) are obtained directly from their algal food. Using a radular tooth, the slug pierces algal cells and sucks out the cytoplasm (Jensen, 1980). The chloroplasts are isolated from the rest of the algal cytoplasm and retained in digestive gland epithelial cells (Trench 1969).
Working condition recogition of fused magnesium furnace based on stochastic configuration networks and reinforcement learning
Authors: Li Weitao , Guan Shuzhi , Zhang Qian , Sun Wei , Li Qiyue
Published: July 2023

Automatic and accurate detection of abnormal working conditions of fused magnesia furnace is of great significance to the safe and reliable production of fused magnesia. Aiming at the defects of manual judgment of abnormal working conditions in the production process of fused magnesium furnace and the existing recogition method of abnormal working conditions based on machine learning. This paper proposes a working condition recogition model of fused magnesium furnace based on stochastic configuration networks and reinforcement learning. Firstly, a hybrid data augmentation method of generative and non-generative is used to obtain high-quality sample data with salient features. Secondly, based on ResNeXt, multi-scale local features are extracted under the condition of limited parameter quantity by controlling the cardinality. Combining the mixed attention and weighted bidirectional feature pyramid mechanism, the extracted local feature maps of different scales are cross-scale fused and focused, and more differentiated detailed feature information of the region of interest is retained. Thirdly, based on Transformer, the multi-modal working condition recognition network of fused magnesium furnace is constructed, and the global correlation between adjacent local features is improved in the spatial dimension. Send the fused complete features to the SCNs to establish a classification criterion for abnormal working conditions of the fused magnesium furnace with generalization ability and global approximation ability. Finally, reinforcement learning is used to evaluate the credibility of uncertain recognition results of samples in real time, and a self-optimizing adjustment action strategy at the Transformer encoding layer is defined. Build a Transformer model library with different encoding layer to adapt to the completely different feature extraction requirements of multi-modal 1 working samples. The experimental results show that the method in this paper has better recognition accuracy and generalization ability than other algorithms.
Dual arterial Phase acquisition Based on united Compressed Sensing Technology of MRI Provides Good Hepatic arteries display and optimal Late arterial Phase
Authors: Sun Wei , Wang Wentao , Sheng Ruofan , Chen Caizhong , Wen Xixi , Zeng Mengsu , Rao Sheng-xiang
Published: July 2023

Purpose: To evaluate the application of equivalent voxel dual arterial phase (AP) sequence in dynamic contrast-enhanced magnetic resonance imaging (MRI) for the liver arteries display and optimal capture of late AP.
Material and Methods: A total of 190 patients enrolled in our study were randomly divided into two cohorts. The equivalent voxel dual AP acquisition based on the unified compressed sensing (uCS) technique was performed in a cohort of 94 patients, and the single AP based on T1-weighted gradient echo acquisition was performed in 96 patients. The successful capturing rates of late AP and evaluations of the display of hepatic arteries were compared between the dual AP and single AP cohorts.
Results: The image quality of liver arteries in the dual AP cohort was mostly higher than that in the conventional single AP cohort. In the first arterial sequence of dual AP imaging, early AP was observed in 76 (80.9%) patients, and late AP was observed in 18 (19.1%) patients. In the second arterial sequence of dual AP, the late AP was observed in 97.9% (92/94) of the patients, and the portal venous phase was observed in 2.1% (2/94). The capture rate of optimal late AP in dual AP was 100%, which was significantly higher than that of single AP (84.3%, P<0.001).
Conclusion: The dual AP acquisition based on uCS can provide a high image quality of hepatic arteries and optimal late AP.
Avifaunal Abundance of Lumding Forest Reserve Area, Assam, India
Authors: Arjun Jashodeb
Published: July 2023

The solitary aim of our investigation was to explore the avian species richness in Lumding Forest Reserve area, Assam.The survey was cooperated by the team of Zoological Survey of India. After extended survey, 146 species of birds were spotted from Lumding Forest Reserve area, where birds from 17 different orders (Passeriformes, Columbiformes, Accipitriformes , Piciformes, Bucerotiformes ,Gruiformes, Apodiformes, Coraciiformes, Trogoniformes, Cuculiformes, Galliformes, Ciconiiformes, Suliformes , Pelecaniformes , Strigiformes, Anseriformes, Charadriiformes) and 76 families were put down. The bird species thus obtained were compared with the IUCN Red list from where interesting cum astonishing facts were acquired. The IUCN Red list informed us that, 92.51% bird species spotted were under Least Concern category, where as 3.4% were Near Threatened, 2.72% were Vulnerable, 0.68% were Critically Endangered and Endangered. We considered ourselves successful for obtaining such astouned statistics about the avian species plentitude of Lumding Forest Reserve, which will provoke other researchers to come forward and explore more about this place.
Zmiany w poziomie i strukturze produkcji rolnej w Polsce na tle UE
Authors: Nowak Anna , Wójcik Ewa
Published: July 2023

W opracowaniu dokonano analizy zmian, jakie zaszły w poziomie oraz strukturze produkcji rolniczej w Polsce oraz w pozostałych krajach UE. Przedmiotem porównania był w rok 2011 oraz 2004. Wyniki badań pokazały, że zmiany dokonujące się w polskim rolnictwie mają podobny kierunek jak w UE. W badanym okresie obserwuje się wyraźny wzrost wartości produkcji rolniczej, w Polsce wyniósł on blisko 65%. Zmiany w strukturze produkcji wyrażają się zmniejszeniem produkcji zbóż, buraków cukrowych, ziemniaków i żywca wieprzowego oraz wzrostem produkcji rzepaku i mleka. Pomimo tych zmian, udział Polski w produkcji unijnej wymienionych produktów nie uległ istotnym zmianom.
Improving the Interior Ballistics Process by Using Charges of Propellant Grains Obtained Through Additive Manufacturing
Authors: Noja Gabriel-Flavius , Mărmureanu Marius-Ionuţ , Malciu Adrian , Rotariu Adrian
Published: July 2023

In this paper is presented a method for solving the interior ballistics model when is used a charge of propellant grains composed of different energetic materials and obtained through additive manufacturing. Starting from the premise that the burning of these types of propellant grains is carried out in several phases, at different moments of time and using a more vivacious propellants for secondary phases, leads to a good approximation of the ideal ballistic cycle which represents a rapid increase of the pressure up to the maximum value and maintaining it until the entire propellant charge is completely burned.
JOHANN SEBASTIAN BACH’IN “BWV 1017 DO MİNÖR KEMAN-HARPSICHORD SONATI’’NIN İNCELENMESİ ve YORUMLANMASI
Authors: ŞAHİN Ebru
Published: July 2023

Günümüzde Barok müziğin nasıl çalınması gerektiği ve Barok Dönem’in günümüz müzik tarzlarını etkileyip etkilemediği halen tartışılan bir konudur. Özellikle J.S.Bach’ın keman eserlerine bakıldığında adeta bir Romantik Dönem eseriymişcesine yorumlanırken gereğinden fazla yapılan vibrato tekniği, eserde tam tersi bir müzikal ifadeyi ortaya çıkarmaktadır. Tabi ki bir eseri yorumlama konusu çok göreceli olup herkesin özellikle ünlü müzisyenlerin kendilerine ait müzikal ifadeyi göstermeleri ve kendi istedikleri şekilde çalmaları önemli bir konudur. Eserlerinin yorumlanması konusunda en fazla görüş ayrılığının yaşandığı büyük bir besteci olan Bach’ın günümüzde yorumlanması bu açılardan oldukça önemlidir. Bir Barok eserini yorumlamadan önce, o eserin dönem özellikleri incelenerek yorumlama oldukça önemlidir. Bu çalışma nitel araştırma yöntemi kullanılmış olup, J.S.Bach’ın Do minör Keman –Harpsichord Sonatı ele alınarak, form ve müzikal açıdan incelenmiştir. Bu çalışmada, Bach’ın bu sonatı ile barok yapıdan uzaklaşarak Klasik Dönem bestecilerine öncü olduğu yenilikçi yapı ortaya konulmuş ve icracıların eser hakkında doğru yorumlama konusunda bilgi sahibi olması hedeflenmiştir.
Cross-modal interactions in language production: evidence from word learning
Authors: Pinet Svetlana , Martin Clara
Published: July 2023

Literate adults are able to produce the same word in different language modalities, for instance through speaking and writing. Yet how speaking and writing interact is not well understood. The present study takes a new perspective on the question of the co-activation of phonological and orthographic representations in speaking and writing by examining the acquisition of novel words. We tested how novel words get integrated into modality-specific lexicons by biasing novel word acquisition toward speaking or writing and assessing cross-modal transfer at the first stages of learning. Participants learned novel words paired with pictures of novel objects and practiced them overtly through speaking or typing. At test, typed training led to higher recall accuracy than spoken training whether recalled through typing or speaking. Performance in typing (RT and durations) benefited more from typed than spoken training. Crucially, performance in speaking did not benefit specifically from spoken training and was similar after spoken or typed training. Results are compatible with an asymmetric integration in the phonological and orthographic lexicons according to the modality of training, with representations created in the orthographic lexicon directly transferring to the phonological lexicon, while the opposite doesn’t seem to occur. Cross-modal transfer dynamics are discussed according to the level of lexical activation.
The Ottoman schools and their impact on the development of the intellectual movement in the country
Authors: حسن ضرار خليل
Published: July 2023

The Ottoman schools played a central role in the formation of the collective mind of the thought and curriculum of the Ottoman Empire, and the research discussed the history of these schools since their inception, ascent, and then decline, and the research was divided into an introduction, a research summary, three topics and a conclusion. The first topic came under the title of the Ottoman schools from inception until the era of Muhammad al-Fateh, and the second topic was titled the development of the Ottoman schools from the era of al-Fateh until the era of Sultan Suleiman the Magnificent. The third topic dealt with the development of the Ottoman schools in the legal era, then their decline and backwardness in the era of weakness and the stagnation and decline that befell them and the reasons for that until the fall of the Ottoman Empire in 1924.
Colletotrichum galinsogae sp. nov. Anthracnose Pathogen of Galinsoga parviflora
Authors: Kazartsev Igor , Gomzhina Maria , Gasich Elena , Gannibal Philipp
Published: July 2023

Galinsoga parviflora is an herbaceous dicotyledonous plant in the Asteraceae that is common in disturbed habitats and agricultural areas across various temperate and subtropical regions of the world. In this study, several pathogenic strains were isolated from this host, and further morphological and phylogenetic analysis of DNA sequences of nuclear rDNA ITS1-5.8S-ITS2 (ITS barcode) and five other gene regions (act, chs-1, gapdh, his3, and tub2) revealed a new species, described here as Colletotrichum galinsogae sp. nov. The pathogenicity of C. galinsogae sp. nov. was also tested and confirmed on leaf segments and seedlings of G. parviflora.
Comparative Analysis of Rhizospheric Fungi Using High-Throughput Sequencing between Wild, Ex Situ, and Reintroduced Pinus squamata, a Plant Species with Extremely Small Populations in Yunnan Province, China
Authors: Li Fengrong , Sun Weibang
Published: July 2023

Pinus squamata is a rare and endangered tree endemic to northeastern Yunnan Province, China, and it is listed as a Plant Species with Extremely Small Populations (PSESP) in China for requiring urgent conservation. Furthermore, the actions of ex situ conservation and reintroduction based on artificial propagation have been carried out since some 15 years ago. The rhizosphere microbiome plays an important role in soil quality and plant health. However, how the fungal communities of the rhizosphere differ between wild, ex situ, and reintroduced examples of Pinus squamata remains unclear. Illumina sequencing of the internal transcribed spacer 2 (ITS2) region was used to investigate fungal communities in the P. squamata rhizosphere soil. Rhizospheric fungal community composition, structure, diversity, and ecological function in the soil surrounding wild, ex situ, and reintroduced P. squamata individuals were elucidated. The ex situ site Kunming (EK) had the highest fungal community richness and diversity. The samples collected from six different sites were well separated (R = 0.95, p = 0.001), suggesting significant differences between the sites. Soil total potassium (TK), available phosphorus (AP), and pH were the main factors driving fungal community (0.01 < p ≤ 0.05). Prediction of fungal functional guild in the P. squamata rhizosphere demonstrated that the fungi could be classified as ectomycorrhizal, endophyte, and plant pathogenic fungi. Our research will provide a basis to guide the further selection of conservation sites for P. squamata based on fungal diversity and offer guidance on the antagonistic fungi and plant pathogenic fungi that may be of relevance to the conservation of this rare plant.
Relationships of Maternal Employment and Work Impact with Weight-Related Behaviors and Home Environments of Mothers and Their School-Age Children
Authors: Santiago Elena , Quick Virginia , Olfert Melissa , Byrd-Bredbenner Carol
Published: July 2023

The prevalence of obesity continues to rise. Preventing obesity, especially childhood obesity, is critically important. Parents, especially mothers, play a vital role in preventing childhood obesity. Numerous factors, such as maternal employment, may influence maternal weight-related practices and home environment characteristics that affect the risk of childhood obesity. Given the prevalence of both childhood obesity and maternal employment, this study was conducted to examine how weight-related maternal, child, and household behaviors as well as home environment characteristics differ by maternal employment hours and extends existing research by examining work impact on behaviors and home characteristics. U.S. mothers (n = 527) with at least one school-age child (6 to 11 years), who were between the ages of 25 and 54 years and the main food gatekeeper in the household completed an online survey. ANOVA comparisons of non-working, part-time employed, and full-time employed mothers revealed few differences in any of the variables studied. Cluster analysis of the 336 employed mothers based on six work impact scale scores found three unique clusters characterized as Enthusiastic Earners, Indifferent Earners, and Strained Earners. Few differences in sociodemographic and job characteristics occurred among clusters and the differences noted had small effect sizes. Clusters did not differ by maternal BMI or perceived child weight status. However, the clusters differed in numerous weight-related behaviors and home environment characteristics. Future research should aim to determine the direction of the associations of work impact with weight-related behaviors and home environments as well as identify potential strategies for overcoming the negative effects of employment on weight-related behaviors and environments and weight status as well as clarify other factors that may affect maternal work impact, such as time management, reasons for employment, and stress.
Experimental Characterization of Composite-Printed Materials for the Production of Multirotor UAV Airframe Parts
Authors: Šančić Tomislav , Brčić Marino , Kotarski Denis , Łukaszewicz Andrzej
Published: July 2023

In this paper, the characterization of 3D-printed materials that are considered in the design of multirotor unmanned aerial vehicles (UAVs) for specialized purposes was carried out. The multirotor UAV system is briefly described, primarily from the aspect of system dynamics, considering that the airframe parts connect the UAV components, including the propulsion configuration, into a functional assembly. Three additive manufacturing (AM) technologies were discussed, and a brief overview was provided of selective laser sintering (SLS), fused deposition modeling (FDM), and continuous fiber fabrication (CFF). Using hardware and related software, 12 series of specimens were produced, which were experimentally tested utilizing a quasi-static uniaxial tensile test. The results of the experimental tests are provided graphically with stress–strain diagrams. In this work, the focus is on CFF technology and the testing of materials that will be used in the production of mechanically loaded airframe parts of multirotor UAVs. The experimentally obtained values of the maximum stresses were compared for different technologies. For the considered specimens manufactured using FDM and SLS technology, the values are up to 40 MPa, while for the considered CFF materials and range of investigated specimens, it is shown that it can be at least four times higher. By increasing the proportion of fibers, these differences increase. To be able to provide a wider comparison of CFF technology and investigated materials with aluminum alloys, the following three-point flexural and Charpy impact tests were selected that fit within this framework for experimental characterization.
Investigation of the Performance of Perovskite Solar Cells with ZnO-Covered PC61BM Electron Transport Layer
Authors: Chang Ting-Chun , Liao Chen-Yi , Lee Ching-Ting , Lee Hsin-Ying
Published: July 2023

Due to its high carrier mobility and electron transmission, the phenyl-C61-butyric acid methyl ester (PC61BM) is usually used as an electron transport layer (ETL) in perovskite solar cell (PSC) configurations. However, PC61BM films suffer from poor coverage on perovskite active layers because of their low solubility and weak adhesive ability. In this work, to overcome the above-mentioned shortcomings, 30 nm thick PC61BM ETLs with different concentrations were modeled. Using a 30 nm thick PC61BM ETL with a concentration of 50 mg/mL, the obtained performance values of the PSCs were as follows: an open-circuit voltage (Voc) of 0.87 V, a short-circuit current density (Jsc) of 20.44 mA/cm2, a fill factor (FF) of 70.52%, and a power conversion efficiency (PCE) of 12.54%. However, undesired fine cracks present on the PC61BM surface degraded the performance of the resulting PSCs. To further improve performance, multiple different thicknesses of ZnO interface layers were deposited on the PC61BM ETLs to release the fine cracks using a thermal evaporator. In addition to the pavement of fine cracks, the ZnO interface layer could also function as a hole-blocking layer due to its larger highest occupied molecular orbital (HOMO) energy level. Consequently, the PCE was improved to 14.62% by inserting a 20 nm thick ZnO interface layer in the PSCs.
Study of the Friction Behavior of Embedded Fibers in YG8 Surface Grooves
Authors: Huang Zhiping , Zhang Haohan , Ni Jing , Yang Lingqi , Feng Kai
Published: July 2023

YG8 is a common cemented carbide material with excellent mechanical properties and mechanical properties, so it is widely used in the actual industry. However, due to the active chemical properties and strong affinity of tungsten alloy steel, it is easy to produce bonding and peeling in application, resulting in an unstable process and short service life. In order to control and reduce the surface wear of YG8 cemented carbide, groove-textured surface (GS) and flocking surface (FS) were prepared on smooth surface (SS). The friction characteristics of the samples were studied under different applied load conditions. The results show that the average friction coefficient of SS, GS and FS is inversely proportional to the load in dry/oil environment. Compared with SS, FS exhibits the lowest friction coefficient, which is reduced by 30.78% (dry friction) and 13.13% (oil lubrication). FS effectively improves the tooth jump phenomenon of the sample and the amplitude of the friction coefficient, friction force and load, and has the best anti-friction characteristics. At the same time, the FS with the fastest contact angle drop at any time also showed excellent wetting ability, and the wear rate decreased by an order of magnitude. The implantation of fibers in the groove inhibits the spalling and furrow of wear track, which is attributed to the effect of fibers on damage repair. In the friction process, FS increases the content of the O element and induces the formation of oxides. The friction mechanism is mainly chemical wear. The excellent tribological properties of FS have a good guiding significance and theoretical support for improving the tribological properties of high hardness material surfaces.
Turkish Version of the New Instrument for Orthorexia Nervosa—Test of Orthorexia Nervosa (TON-17): A Validity and Reliability Study
Authors: Yassıbaş Emine , Ayyıldız Feride
Published: July 2023

This study aimed to adapt the Test of Orthorexia Nervosa- (TON-17) into Turkish and verify its validity and reliability. The study included 539 adults with a mean age of 30.2 ± 12.26 years. A reliability analysis was performed, along with a confirmatory factor analysis to test its construct validity. The time-invariance of the scale was examined by test–retest analysis, and its convergent validity was evaluated by a correlation analysis conducted to test the relationships between the scale and Eating Attitudes Test-26 and Obsessive Beliefs Questionnaire-9. Analyses were conducted using SPSS Version 28 and the AMOS-24 software. The Cronbach’s α internal consistency coefficient of the total scale was found to be 0.82, suggesting a strong internal consistency. The Cronbach’s α values of its factors were 0.68 for the “control of food quality”, 0.64 for the “fixation on health and a healthy diet”, and 0.73 for the “disorder symptoms”. In addition, the test–retest reliability was found to be 0.87 for the total scale, suggesting excellent reliability. Most of the fit indices (CMIN/df, RMSEA, AGFI, NFI, and TLI) of the scale were acceptable, and the GFI indicated a good model fit. This study shows that the Turkish version of TON-17, which is a new tool with a three-factor structure to evaluate orthorexia, is a valid and reliable scale.
Gut Microbiota and Plasma Bile Acids Associated with Non-Alcoholic Fatty Liver Disease Resolution in Bariatric Surgery Patients
Authors: Pérez-Rubio Álvaro , Soluyanova Polina , Moro Erika , Quintás Guillermo , Rienda Iván , Periañez María Dolores , Painel Andrés , Vizuete José , Pérez-Rojas Judith , Castell José V. , Trullenque-Juan Ramón , Pareja Eugenia , Jover Ramiro
Published: July 2023

Bariatric surgery (BS) has several benefits, including resolution of non-alcoholic fatty liver disease (NAFLD) in many patients. However, a significant percentage of patients do not experience improvement in fatty liver after BS, and more than 10% develop new or worsening NAFLD features. Therefore, a question that remains unanswered is why some patients experience resolved NAFLD after BS and others do not. In this study, we investigated the fecal microbiota and plasma bile acids associated with NAFLD resolution in twelve morbidly obese patients undergoing BS, of whom six resolved their steatosis one year after surgery and another six did not. Results indicate that the hallmark of the gut microbiota in responder patients is a greater abundance of Bacteroides, Akkermansia, and several species of the Clostridia class (genera: Blautia, Faecalibacterium, Roseburia, Butyricicoccusa, and Clostridium), along with a decreased abundance of Actinomycetes/Bifidobacterium and Faecalicatena. NAFLD resolution was also associated with a sustained increase in primary bile acids (particularly non-conjugated), which likely results from a reduction in bacterial gut species capable of generating secondary bile acids. We conclude that there are specific changes in gut microbiota and plasma bile acids that could contribute to resolving NAFLD in BS patients. The knowledge acquired can help to design interventions with prebiotics and/or probiotics to promote a gut microbiome that favors NAFLD resolution.
Recent Advances in Potential Health Benefits of Quercetin
Authors: Aghababaei Fatemeh , Hadidi Milad
Published: July 2023

Quercetin, a flavonoid found in fruits and vegetables, has been a part of human diets for centuries. Its numerous health benefits, including antioxidant, antimicrobial, anti-inflammatory, antiviral, and anticancer properties, have been extensively studied. Its strong antioxidant properties enable it to scavenge free radicals, reduce oxidative stress, and protect against cellular damage. Quercetin’s anti-inflammatory properties involve inhibiting the production of inflammatory cytokines and enzymes, making it a potential therapeutic agent for various inflammatory conditions. It also exhibits anticancer effects by inhibiting cancer cell proliferation and inducing apoptosis. Finally, quercetin has cardiovascular benefits such as lowering blood pressure, reducing cholesterol levels, and improving endothelial function, making it a promising candidate for preventing and treating cardiovascular diseases. This review provides an overview of the chemical structure, biological activities, and bioavailability of quercetin, as well as the different delivery systems available for quercetin. Incorporating quercetin-rich foods into the diet or taking quercetin supplements may be beneficial for maintaining good health and preventing chronic diseases. As research progresses, the future perspectives of quercetin appear promising, with potential applications in nutraceuticals, pharmaceuticals, and functional foods to promote overall well-being and disease prevention. However, further studies are needed to elucidate its mechanisms of action, optimize its bioavailability, and assess its long-term safety for widespread utilization.
Identification of Aquifer and Pumped Well Parameters Using the Data Hidden in Non-Linear Losses
Authors: Urumović Kosta , Terzić Josip , Kopić Jasna , Kosović Ivan
Published: July 2023

During the pumping of wells, the groundwater level drawdown, as measured in the pumped well, is increased by non-linear losses caused by the water flow velocity through the well screens. This undermines the adequacy of the direct use of the measured drawdown data in the well for the purpose of the realistic identification of the effective well radius and aquifer parameters. This anomaly is avoided by reshaping the drawdown function into a function of the specific drawdown sw/Q of the pumped well. This reshaping simplifies the exclusion of non-linear losses from the sequence of measured data of the water level in the well at the position of the effective radius of the pumped well. Combining the data of linear losses and the respective pumping rate of the pumped well, a function of the specific drawdown of the radial flow sw/Q was formed. This function describes the aquifer parameter relations during the respective test pumping. A consistent sequence of the function of the specific drawdown sw/Q of the pumped well reveals the actual value of the coefficient of nonlinear losses. Moreover, the specific drawdown function enables the reliable estimation of aquifer transmissivity using only the pumped well drawdown data.
The Impact of Cultural Values on Attitude Formation toward Cultural Products: Mediating Effects of Country Image
Authors: Xing Yisitie , Jin Chang-Hyun
Published: July 2023

This study aimed to explore the influence of cultural values on the development of attitudes toward cultural products and purchase intentions while considering country image as a mediating variable in this relationship. Cultural dimensions were categorized into five groups: power distance, uncertainty avoidance, individualism, masculinity, and long-term orientation. A web-based questionnaire was distributed to 974 Asian consumers who had purchased and used foreign cultural products. Data analysis was conducted in two stages: exploratory factor analysis (EFA) using SPSS, and structural equation modelling (SEM) using EQS 6.4. The results revealed that power distance, individualism and collectivism, uncertainty avoidance, and masculinity had significant positive impacts on attitudes toward cultural products, whereas long-term orientation did not. Positive attitudes toward cultural products are linked to high purchase intent. Country image was identified as a mediator in the relationship between attitudes toward cultural products and purchase intention. This study contributes to the literature by identifying and explaining the relationship between cultural values and consumer behavior, and selecting and consuming these consumers’ rational, emotional, and reasonable cultural products. It is necessary to increase explanatory power by developing various cultural values and introducing additional variables, as in Hofstede’s theory of cultural value. The practical and theoretical implications of this study are outlined in the conclusion.
Enhancing the Immobilization of Hexavalent Chromium by the Interlayer Anion Adsorption of the Brucite-Transformed LDH in the Presence of Aluminum Ions
Authors: Chen Xiaoduo , Huang Lianyang , Li Zheng , Chen Binfeng , Zhang Menglu , Wu Chunshan , Ma Pengchen , Zhang Weifang
Published: July 2023

Current studies of chromium adsorption kinetics at the solid–liquid interface often neglect the influence of coexisting ions in complex wastewaters. Thus, it is critical to explore the hexavalent chromium Cr(VI) adsorption kinetics of solid-phase brucite (Mg(OH)2) in liquid-phase wastewater containing coexisting aluminum ions (Al(III)). This paper reveals that the presence of Al(III) significantly enhanced the Cr(VI) adsorption efficiency onto Mg(OH)2, with a peak of up to 91% compared to 5% for the absence of Al(III). The main reason for this enhancement was the initial surface ternary complexation of Mg(OH)2 and the cationic (Al(III)) isomorphic substitution to form Mg(II)-Al(III) layered double hydroxides (LDH), which also indicates a solid-phase transition on the surface of Mg(OH)2, which led to electrostatic adsorption in the gallery and made Cr(VI) immobilized and not readily released. Further calculation and analysis of the adsorption energy confirmed the mechanism of Cr(VI) adsorption. It was also concluded that Cr(VI) migration in Mg(OH)2-containing minerals was affected by the phase transformation of solids in the presence of Al(III). Hence, this study not only reveals the adsorption mechanism during the treatment of composite pollutant wastewater but also provides the methodological reference for brucite synergistic adsorption to remove heavy metal ions and purify and treat complex polluted wastewater.
Investigating the Role of Innovation in Inclusive and Sustainable Development in Ukraine and South Korea
Authors: Syhyda Liubov , Saher Liudmyla , Gąsior Marcin , Sygyda Nataliia , Artyukhova Nadiia , Skrzypek-Ahmed Sylwia , Dluhopolskyi Oleksandr , Rehak Robert
Published: July 2023

While other studies have analysed the problems of innovation and innovative development at the global level or for some specific countries or enterprises, this study provides a comparison of publication activity in the sphere of innovation and innovative development in two countries with different levels of economic and sustainable industrial development. This study investigates publications on the innovation and innovative development problems regarding sustainable industrial development in Ukraine and South Korea. A bibliometric study was conducted. The data were collected from the SciVal platform. The authors used the modern techniques and procedures of bibliometric analysis and data visualisation. The results show that (1) South Korea demonstrates higher publication activity on innovation and innovative development than Ukraine; (2) in the articles, authors of both countries highlight the problem of increasing innovative activity; (3) authors from South Korea form a denser network of relationships with authors from other countries; (4) in both cases, the leading cluster formed around the keyword “innovation”; and (5) for Ukraine and South Korea, innovative activities are connected with sustainable development. This study combines qualitative and quantitative research methods. It was carried out in two phases: data preparation and data analysis, using the techniques and procedures of bibliometrics. The results demonstrate the importance of the publication of scientific papers on the effects of a country’s innovative activities to raise public awareness, foster the country’s innovation, and thus stimulate sustainable development.
Realistic Home Energy Management System Considering the Life Cycle of Photovoltaic and Energy Storage Systems
Authors: Al Muala Zaid A. , Bany Issa Mohammad A. , Sansó-Rubert Pascual Daniel , Bello Bugallo Pastora M.
Published: July 2023

Home Energy Management Systems (HEMSs) have become necessary due to energy security and climate change concerns. Scheduling the operating time of household appliances is one of the most effective strategies used by HEMSs to reduce electricity costs, with several studies proposing optimization strategies for scheduling home appliances to reduce the grid energy usage cost. This work considers energy usage costs from Renewable Energy Sources (RESs) and Energy Storage Systems (ESSs) in the appliance-scheduling strategy and energy flow management. The objectives are reducing the real electricity cost while maintaining a longer battery lifespan, reducing battery charging/discharging losses, and using PV power efficiently. To achieve this, we developed a pricing model of battery energy usage, in addition to modeling the PV energy usage cost based on the Levelized Cost of Energy (LCOE) for PV systems. PV-battery energy usage cost models were introduced into the optimization problem solved using the Augmented Grey Wolf Optimization (AGWO) and Particle Swarm Optimization (PSO) algorithms in MATLAB. We developed an efficient energy flow management algorithm. We collected real data from a home in Vigo, Spain, and simulated four scenarios. The results show that the proposed system using AGWO and PSO reduced the real cost by 25.87% and 25.98%, respectively. Compared with an existing energy-usage-pricing model, the AGWO reduced the energy losses by 40.429% and extended the battery lifespan by 68.282%. Similarly, the PSO reduced the energy losses by 45.540% and extended the battery lifespan by 84.56%. Moreover, the proposed system reached the breakeven point of the system in a shorter time.
Research Thesis for Undergraduate Engineering Programs in the Digitalization Era: Learning Strategies and Responsible Research Conduct Road to a University Education 4.0 Paradigm
Authors: Cacciuttolo Carlos , Vásquez Yaneth , Cano Deyvis , Valenzuela Fernando
Published: July 2023

Many university students have doubts about how or where to start writing their undergraduate thesis work; it is common not to be clear how to identify a research problem or even towards which topic their research is oriented, and there are doubts about how to process and systematize so much information available in the era of digitalization. This article presents learning strategies to formulate a research thesis for engineering undergraduate programs, with an emphasis on the use of information and communication technologies (ICTs) toward a University Education 4.0 paradigm. The main themes and issues discussed in this article, carried out through learning strategies for students based on the scientific method, are the following: (i) Recommendations for choosing a research topic, (ii) Guidelines for problem identification and question research, (iii) Suggestions for choosing a thesis advisor, (iv) Instructions for finding suitable sources of information, (v) Structure of the table of contents for writing the thesis manuscript, and (vi) Indications for preparing an oral defense of thesis research. This article highlights recommendations and precautions directed towards professors and students with the use of the chatbot-type artificial intelligence (AI) tool called ChatGPT for the formulation of the thesis under a responsible conduct approach in research. This article concludes that the application of tutoring/guidance strategies between professors and students requires an adequate ethical use of information and communication technologies (ICTs) during the development of a research thesis to generate a comprehensive educational environment that encourages research and develops a sustainable learning process in the context of the University Education 4.0 paradigm.
Numerical Investigation of the Effects of Stress Heterogeneity on the Propagation Behaviors of Hydraulic Fractures in a Shale Oil Reservoir
Authors: Zhang Shikun , Chen Zuo , Wang Xiaohui , Zhao Xuyang , Lin Jiaying , Zhu Bolong , Wen Qian , Jing Qi
Published: July 2023

Minimum principal stress is a key factor governing the hydraulic fracturing behaviors in shale oil reservoirs. Due to the existence of stress heterogeneity, the hydraulic fracture growth and footprints can be affected, and the hydraulic fracturing efficacy can be consequently altered. This phenomenon is especially common during the development of shale oil reservoirs associated with continental sedimentary facies. This study uses a numerical workflow to analyze the effect of stress heterogeneity on hydraulic fracture growth. The numerical workflow consists of an open-source planar hydraulic fracturing model and a derived coupled flow and geomechanics model, which can address the effect of minimum principal stress heterogeneity on hydraulic fracturing. Two types of stress heterogeneity are considered: stress heterogeneity caused by legacy production in the horizontal direction and stress heterogeneity caused by high-stress interlayers in the vertical direction. Simulation results indicate that stress heterogeneity in the horizontal and vertical directions leads to asymmetric fracture growth horizontally and vertically. The corresponding fracture footprints and widths also become asymmetric accordingly. Thin interlayers cannot fully limit the fracture growth, and the fracture height growth can still penetrate through. When the high-stress interlayers are thick enough, the fracture cannot penetrate through them vertically, while the corresponding fracture growth is no longer highly sensitive to the thickness of the interlayer.
Modified Droop Control for Microgrid Power-Sharing Stability Improvement
Authors: Rashwan Ahmed , Mikhaylov Alexey , Senjyu Tomonobu , Eslami Mahdiyeh , Hemeida Ashraf M. , Osheba Dina S. M.
Published: July 2023

Isolated microgrid (IMG) power systems face the significant challenge of achieving fast power sharing and stable performance. This paper presents an innovative solution to this challenge through the introduction of a new droop control technique. The conventional droop controller technique used in inverter-based IMG systems is unable to provide satisfactory performance easily, as selecting a high droop controller gain to achieve fast power sharing can reduce the system’s stability. This paper addresses this dilemma by proposing a modified droop control for inverter-based IMGs that effectively dampens low-frequency oscillations, even at higher droop gain values that would typically lead to instability. The design is described step-by-step, and the proposed controller’s effectiveness is validated through time domain simulation analysis. The results demonstrate the significant improvement in stability and fast power sharing achieved with the proposed controller. This innovative technique presents a promising solution for achieving fast power sharing and stable performance in IMG power systems.
Raina’s Function-Based Formulations of Right-Sided Simpson’s and Newton’s Inequalities for Generalized Coordinated Convex Functions
Authors: Vivas-Cortez Miguel , Murtaza Ghulam , Baig Ghulam Murtaza , Awan Muhammad Uzair
Published: July 2023

The main focus of this article is to derive some new counterparts to Simpson’s and Newton’s type inequalities involve a class of generalized coordinated convex mappings. This class contains several new and known classes of convexity as special cases. For further demonstration, we deploy the concept of right quantum derivatives to develop two new identities involving Raina’s function. Moreover, by implementing these auxiliary results together with generalized convexity, we acquire a Holder-type inequality. We also acquire some applications of our main findings by making use of suitable substitutions in Raina’s function.
REACTION OF FREE-LIVING AND SYMBIOTIC BRADYRHIZOBIUM JAPONICUM ON THE USE OF SUCCINIC ACID
Authors: Rybachenko L. I. , Kots S. Ya. , Pukhtaievych P. P. , Rybachenko O. R. , Omelchuk S. V.
Published: July 2023

Objective. Find out the influence of different concentrations of succinic acid on the intensity of growth of Bradyrhizobium japonicim and the activity of symbiotic systems created with their participation. Methods. Microbiological, physiological, statistical, gas chromatography. Results. It was found that the T21-2 strain had a more pronounced reaction to the use of succinic acid than the PC08 strain, regardless of its concentration. Addition of succinic acid to the culture medium of rhizobia at a concentration of 0.01 and 0.02 g/L led to an increase in the titre of bacterial cells of T21- 2 and PC08 strains, while at a concentration of 0.2 g/L it had a toxic effect on the studied strains. Succinic acid at a concentration of 0.01 g/L, both during seed treatment and as a component of the inoculation suspension, significantly activated the processes of formation and functioning of soybean symbiotic systems formed by the T21-2 rhizobia strain. At a concentration of 0.02 g/L, it provided the highest rate of growth of bacterial cells among the studied variants and led to an increase in their titre relative to rhizobia without adding acid, both on day three and four of cultivation. At the same time, regardless of the method of application, this concentration of succinic acid partially inhibited the nodulation activity of T21-2 strain and the nitrogen-fixing activity of the symbiotic systems formed with their participation. Conclusion. Based on the revealed effect of succinic acid on the growth of Bradyrhizobium japonicum in pure culture and on the formation and functioning of symbiosis, we recommend adding succinic acid at a concentration of 0.01 g/L, both as a component of the inoculation suspension, and for pre-sowing seed treatment to increase the activity of soybean-rhizobia symbiotic systems.
Questa risposta serve allo scopo
Authors: Coletti Vittorio
Published: July 2023

Un lettore ci chiede se sia legittimo l’uso di servire lo scopo, anziché servire allo scopo, che trova in testi “formali/burocratici” quali “la Gazzetta Ufficiale”: si tratta forse di un’influenza dell’inglese to serve a purpose?
ADENOID CYSTIC CARCINOMA OF TONGUE: A RARE ENTITY
Authors: Ram Hari , well Kharmawlong Reading , Kumari Jain Deepika , Sundaram Ezhilarasi
Published: July 2023

Adenoid cystic carcinoma is one of the rarest salivary gland carcinoma that predominantly arises from the minor salivary glands, the palate being
the most common site. The tumor is typically slow-growing compared to other carcinomas with perineural invasion and distant metastasis are
common ndings. This neoplasm is dened by its distinctive histological appearance. We have reported a case of adenoid cystic carcinoma
involving the right anterior two third of tongue. The aim here is to highlight the importance of diagnosis; its treatment planning and long term
follow up of the patient.