bluuebunny/crossref_metadata_2025 huggingface dataset:
CULTURAL SPECIFICS OF ACADEMIC WRITING GENRE: CATEGORY OF AUTHORITY
Authors:   South Ural State University, Shapkina Elena
Published: April 2024

. Recent studies of various discourse types, including the scientific one, show that in communication process the authority of the participants is one of the important communicative categories realized with a set of linguistic and graphic means. They can have some specifics in the texts belonging to the same genre but different linguistic cultures. The purpose of our study is to identify the most typical lexical and grammatical means (markers) used to realize the category of authority in scientific articles genre in the English and Russian linguistic cultures. The objects of the study were three groups of markers: the authority of general scientific facts and theories; the authority of top experts in a particular field and the authority of the author of a scientific article. The research material included a number of articles in Russian and English in the field of pedagogy, management and energy. The analysis revealed significant differences in the quantity of these markers depending on the scientific field and the particular language culture, as well as a direct correlation with the quantitative use of graphic markers of the category (tables, graphs, etc.). In addition, some differences were observed in the choice of language means, particularly, the lexical and grammatical content of speech clichés, as well as some differences in syntactic patterns of the means. Theoretical importance of the analysis proves the need to study and systematize language tools used to realize the main communicative parameters of a scientific text. The practical results can be used to develop recommendations for academic writing.
GEOPOETICS OF SPACE: VENICE IN ENGLISH-LANGUAGE ESSAY BY J. BRODSKY
Authors:   Ural Federal University named after the first President of Russia B.N. Yeltsin, Tomberg Olga V.
Published: April 2024

The article provides research into geopoetic image of Venice represented in the essay “Watermark” by I. Brodsky. Research approach includes methods of conceptual, narrative, stylistic analyses as well as fictional text interpretation method. The study is based on the analysis of narrative-conceptual models, that contain urban objects as one of their components. Within this approach, the following models were singled out: “city perceived by senses”, “city and season”, “city as retrospection”, and “city as water”. Each of the models is distinguished by a certain set of spatial objects and their characteristic features. Symbolic interpretation of these objects receives considerable attention in the paper as well. The study shows that the largest number of city objects is perceived by senses, mostly eyesight/eye. This concept is characterized by nominative density, text recurrence, wide scope of symbolic interpretations. The largest number of objects associated with Venice are represented within the model “city as retrospection” connected with walks, meetings, memories, and life situations. Water may be defined as the essay
Relationship Between Biophysical Properties of Antimicrobial Peptides (AMPs) and their Associated Drug Efficacies
Authors: Zhu Alisha
Published: April 2024

Antibiotic resistance is a growing global health threat. One consequence is that patients with cystic fibrosis (CF) are prone to developing antibiotic resistant lung infections caused by multiple strains of bacteria, including Pseudomonas aeruginosa. Due to the limited number of treatment options for patients with chronic antibiotic resistant infections, there is a need for finding new antibiotics that allow for effective eradication of bacterial infections, such as those in the CF lung. Many antimicrobial peptides (AMPs) have been annotated in databases and are considered as potential alternatives for current antibiotics. However, in many instances, the suitability of AMPs as drug molecules has not been extensively explored. Here, we propose that certain molecular properties of AMPs favor high antibiotic efficacy. Using information from AMP databases, we combined statistical analyses and machine learning techniques to identify relationships between various biophysical properties of AMPs and their drug efficacies. Analyses from classification and regression trees (CART) and random forests suggest that net charge and maximum average hydrophobic moment are the most important properties in determining if a peptide is useful against P. aeruginosa infections in CF patients. Maximum average hydrophobic residue, average alpha helix propensity score, hydrophobic proportion, and peptide length still contribute to this determination but to lesser degrees. Cation-pi interactions, on the other hand, do not appear to factor into this decision at all. Based on these properties, our current work is focused on designing and experimentally testing new peptides that may have activity against P. aeruginosa infections.
Distribution of CYP2D6 and CYP2C19 gene polymorphisms in Han and Uygur populations with breast cancer in Xinjiang, China
Authors: Abudukeremu Muzhapaer , Ayoufu Aisikaer , Tuerhong Adila , Paizula Xuelaiti , Ou Jiang-Hua
Published: April 2024

The aim of this study was to investigate the frequency distribution of the cytochrome P450 (CYP450) enzymes, CYP2D6 and CYP2C19, and the form of tamoxifen metabolisation in premenopausal patients with breast cancer in the Han and Uygur ethnic groups of Xinjiang to guide rational clinical drug use. A total of 125 Han patients and 121 Uygur patients with premenopausal hormone-receptor-positive breast cancer treated at the Xinjiang Uygur Autonomous Region Cancer Hospital between 1 June 2011 and 1 December 2013 were selected. The common mutation sites in CYP450 were analysed using TaqMan® minor groove binder technology. Genetic testing was performed to determine other metabolic types of tamoxifen, and the genotypes and metabolic types were compared using a Chi-squared test. Between the Han and Uygur groups, there were significant differences in the frequencies of the CYP2D6 (*10/*10) and CYP2C19 (*1/*1) genotypes, with P-values of 0.002 and 0.015, respectively. Genotypes of CYP2D6 (*1/*1), CYP2D6 (*1/*5), CYP2D6 (*5/*5), CYP2D6 (*5/*10) and CYP2C19 (*3/*3) were expressed in the two patient groups, and the difference was not statistically significant (P > 0.05). In the Han patients, the proportions of extensive, intermediate and poor metabolisers of tamoxifen were 72, 24 and 4%, respectively, whereas those in the Uygur patients were 76.9, 17.4 and 5.7%, respectively, with no significant difference (P > 0.05). In conclusion, There were partial differences in the CYP2D6 and CYP2C19 gene polymorphisms of CYP450 between the Han and Uygur patients with premenopausal breast cancer, but there was no significant difference between the CYP2D6 and CYP2C19 phenotypes. Further research is needed to determine the relationship between the enzyme genetic differences of CYP450 and the pharmacokinetics and efficacy of tamoxifen. Although there were some differences in genotypes, these did not result in differences in the predicted tamoxifen metabolisation phenotype between the Han and Uygur patients with breast cancer. Therefore, the doses should be adjusted according to the individual genotype data.
Web-accessible critical limits and critical values for urgent clinician notification
Authors: Kost Gerald J. , Dohner Jenna , Liu Janet , Ramos Dean , Haider Nabiya , Thalladi Varsha
Published: April 2024

Objectives

To survey the World Wide Web for critical limits/critical values, assess changes in quantitative low/high thresholds since 1990–93, streamline urgent notification practices, and promote global accessibility.

Methods

We identified Web-posted lists of critical limits/values at university hospitals. We compared 2023 to 1990–93 archived notification thresholds.

Results

We found critical notification lists for 26 university hospitals. Laboratory disciplines ranged widely (1–10). The median number of tests was 62 (range 21–116); several posted policies. The breadth of listings increased. Statistically significant differences in 2023 vs. 1990 critical limits were observed for blood gas (pO2, pCO2), chemistry (glucose, calcium, magnesium), and hematology (hemoglobin, platelets, PTT, WBC) tests, and for newborn glucose, potassium, pO2, and hematocrit. Twenty hospitals listed ionized calcium critical limits, which have not changed. Fourteen listed troponin (6), troponin I (3), hs-TnI (3), or troponin T (2). Qualitative critical values expanded across disciplines, encompassing anatomic/surgical pathology. Bioterrorism agents were listed frequently, as were contagious pathogens, although only three hospitals listed COVID-19. Only one notification list detailed point-of-care tests. Two children’s hospital lists were Web-accessible.

Conclusions

Urgent notifications should focus on life-threatening conditions. We recommend that hospital staff evaluate changes over the past three decades for clinical impact. Notification lists expanded, especially qualitative tests, suggesting that automation might improve efficiency. Sharing notification lists and policies on the Web will improve accessibility. If not dependent on the limited scope of secondary sources, artificial intelligence could enhance knowledge of urgent notification and critical care practices in the 21st Century.
Use of [18F]fluorocholine PET/CT in the detection of primary hyperparathyroidism in paediatrics: a case report
Authors: Martínez Sánchez Helena , Moreno Macián Francisca , León Cariñena Sara , de Mingo Alemany Carmen , Blasco González Lidia , Sánchez Vañó Raquel
Published: April 2024

Objectives

The most common cause of primary hyperparathyroidism (PPH) in children is a parathyroid adenoma. Among this population, PPH exhibits higher levels of morbidity, severity and target organ involvement compared to adults. When there is suspicion of PPH, cervical ultrasound and 99mTc-sestamibi SPECT/CT are the imaging test traditionally indicated. Among adults, the use of [18F]fluorocholine PET/CT has shown a higher sensitivity than ultrasound and [99mTc]sestamibi SPECT/CT, leading to an expanding adoption in recent years. However, its role in paediatrics has not been clearly defined yet.

Case presentation

The patient is an adolescent female aged 13 years presented with lithiasis. The analytical study revealed elevated PTH, hipovitaminosis D, hypercalcaemia and hypophosphataemia. Due to the suspicion of PPH, cervical ultrasound and 99mTc-sestamibi SPECT/C were performed, failing to identify hyperfunctioning parathyroid glands. We proceeded to carry out a [18F]fluorocholine PET/CT where a hypermetabolic nodular image was identified, compatible with a hyperfunctioning parathyroid adenoma. The patient underwent surgery, resulting in the normalisation of PTH levels. Pathological anatomy confirmed the presence of a parathyroid adenoma.

Conclusions

In cases where conventional imaging tests yield negative results or discrepancies, we suggest the possibility of the use of [18F]fluorocholine PET/CT for the detection of hyperfunctioning parathyroid adenomas.
The crystal structure of N-(acridin-9-yl)-4-chloro-N-(4-chloro-butanoyl) butanamide, C21H20Cl2N2O2
Authors: Zhou Dan , Jing Chen Yang , Li Hong-ji , Zhang Xinyi , Zhao Pei Rong , Li Wen
Published: April 2024

C21H20Cl2N2O2, orthorhombic, P21 (no. 4), a = 8.3667(14) Å, b = 15.444(3) Å, c = 15.105(2) Å, V = 1951.9(6) Å3, Z = 4, Rgt
(F) = 0.0481, wRref
(F
2) = 0.1574, T = 292 K.
Study on the photodegradation behaviors of liquid crystal display (LCD) used optical cellulose triacetate films
Authors: Fan Xiushan , Wu Jin
Published: April 2024

In this study, ramie fiber was employed to prepare cellulose triacetate (CTA) films. Subsequently, the photodegradation behaviors without photosensitizers of CTA films were carried out in photodegradation chambers at 40 °C. Additionally, the photodegradation procedure of films was assessed by the attenuated total reflection infrared (ATR-IR), 1H nuclear magnetic resonance (1H NMR), scanning electron microscope (SEM), thermal properties, degree of substitution (DS), and tensile strength. The research consequences indicated that the mechanical strength of the CTA films was decreased significantly after ultraviolet (UV) irradiation for 300 h. However, the DS of the films is almost invariable when they are exposed to UV irradiation. Meanwhile, the suggested mechanism for photodegradation of CTA was also exhibited in this paper. This study provides a mild and potential pre-treatment approach for the biodegradation of LCD used waste CTA films.
Preparing conductive polymer-based adsorbent with better cupric ion adsorption efficiency by monomer precursor cross-linking method
Authors: Jia Keke , Mamat Kamila , Tuerxun Nasiman , Muslim Arzugul
Published: April 2024

Conductive polymer-based adsorbents have showed excellent heavy metal ion removing capabilities. Crosslinking modification is one of the feasible methods to further improve their properties. To make use of the advantages of monomer precursor method over the polymer precursor method in forming dense interpenetrating networks, and then optimizing the surface structure of materials and providing more adsorption sites, the mesoporous cross-linked poly-o-phenylenediamine (M-CR-PoPD) prepared by using the former one and used in removing Cu2+ from aqueous solution. The FTIR results showed that the monomer was successfully crosslinked and polymerized. The loosely packed target product with a hierarchical pore structure distribution was successfully formed. The maximum adsorption capacity of 105.18 mg g−1 was obtained at 25 °C after 3 h of adsorption when M-CR-PoPD prepared at the reaction time of 6 h using anhydrous ethanol as solvent and trimethylolpropane-tris(3-aziridinyl) propionate as crosslinking agent. This value reached the optimum Cu2+ removal capability of reported PoPD-based adsorbents. According to EDX, FTIR, and XPS data before and after adsorption, the possible adsorption mechanism based on the cation-π interaction and the formation of Cu–N bonds was proposed. These results could help develop more effective conductive polymer-based adsorbents to remove Cu2+ from wastewater.
High-pressure/high-temperature synthesis, single-crystal structure analysis, and spectroscopic data of γ-Eu(BO2)3 and γ-Gd(BO2)3
Authors: Teichtmeister Tobias A. , Bernhart Alexander Hugo , Huppertz Hubert
Published: April 2024

Orthorhombic crystals of the compounds γ-Eu(BO2)3 and γ-Gd(BO2)3 were obtained by high-pressure/high-temperature syntheses at 10.5 GPa and 1100 and 900 °C, respectively. The structures were solved by single-crystal X-ray diffraction methods. The two compounds crystallize with four formula units per cell in the space group Pca21 (no. 29) with the unit cell parameters a = 18.2729(7), b = 4.4076(2), c = 4.2505(1) Å (Ln = Eu), and a = 18.2591(6), b = 4.4055(1), c = 4.2477(1) Å (Ln = Gd). Their infrared spectra and the luminescence spectrum of γ-Eu(BO2)3 are discussed.
Preparation of sodalite at room temperature with varying hydrogel Al2O3/SiO2 molar ratio for enhanced Cd2+ adsorption
Authors:   Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China, Zhang X. , Sun Y. H. ,   Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China, Huang Y. ,   Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China, Li J. L. ,   Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China, Chen Y. ,   Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China
Published: April 2024

Sodalite crystals were prepared with varying hydrogel Al2O3/SiO2 molar ratio at room temperature via hydrothermal method. The particulate properties of products prepared under room temperature and elevated temperature condition were compared. The results displayed that spherical particles built of small crystallites were obtained after 10 h of room-temperature hydrothermal treatment; while with the same gel composition, the sodalite obtained for 10 h at 90 o C was large lepispherical particles. Moreover, the samples prepared at room temperature exhibited much higher Cd2+ sorption capacities, and the maximum adsorption capacities of Cd2+ were tested to be 84.2, 88.6, 92.9, and 98.2 mg/g for the sodalite synthesized with hydrogel Al2O3/SiO2 molar ratios of 0.43, 0.55, 0.68 and 0.84, respectively. The reasons can be due to its specific porous structure, large surface area, and more adsorption active sites. Additionally, the kinetics and isotherm analysis revealed that pseudo-second order model and Langmuir model agreed well with the adsorption processes. This work offered an economic synthesis method of sodalite to achieve efficient Cd2+ removal from aqueous solution.
Preparation and photocatalytic performance of Sn-doped and BiOI-coupled dual modified Bi2WO6 composite
Authors:   Intelligent Manufacturing College, Chengdu Jincheng College, Chengdu 611731, China, Qin Q. , Zhang L. ,   School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China, Xiao T. ,   School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China, Zhong Y. Y. ,   School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China, Wang J. ,   School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China, Liang W. L. ,   Intelligent Manufacturing College, Chengdu Jincheng College, Chengdu 611731, China, Wang Y. H. ,   Intelligent Manufacturing College, Chengdu Jincheng College, Chengdu 611731, China, Yang S. C. ,   Intelligent Manufacturing College, Chengdu Jincheng College, Chengdu 611731, China, Zhu X. D. ,   School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China
Published: April 2024

Sn doped and BiOI coupled dual modified Bi2WO6 photocatalytic material was prepared using hydrothermal route. The phase composition, morphology, surface area, elemental composition and oxidation state, as well as optical properties, were comprehensively characterized. Take the methylene blue (MB) as the model pollutant for photodegradation to estimate the photocatalytic property of the synthesized material. The prepared Bi2WO6- based composite material shows a flower-like structure assembled from nanosheets, with a surface area of 45.3 m2 /g and a bandgap width of 2.41 eV, enabling visible light responsiveness. The synergistic effect of Sn doping and BiOI coupling modification enhances the photocatalytic performance. The Sn-BiOI/Bi2WO6 photocatalytic composite material shows excellent photocatalytic activity, with complete degradation of MB after 40 minutes of illumination, and a first-order reaction rate constant (k) of 0.102 min–1 . Experimental evidence suggests that photoinduced holes are the main active species.
Effect of Ti3AlC2 particles on microstructure and tribological properties of micro-arc oxidation layer on TC4 alloy
Authors:   Liaoning University of Technology, Jinzhou, 121000, Liaoning Province, China, Li Q. , Shang J. ,   Liaoning University of Technology, Jinzhou, 121000, Liaoning Province, China, Gu G. Y. ,   Liaoning University of Technology, Jinzhou, 121000, Liaoning Province, China
Published: April 2024

TiO2 metal oxide layers rich in Ti3AlC2 phase was successfully prepared on TC4 alloy by micro-arc oxidation (PECC or ASD) process. Analysis of the material phases contained in the PECC layer by X-ray diffractometry; scanning electron microscopy and energy spectroscopy were used to analyses the pores and elemental distribution on the surface of the specimens; the cross-sectional thickness of PECC layers were measured by metallographic microscope; confocal microscopy was used to measure the surface roughness of the sample; High temperature wear resistance of PECC layers with different Ti3AlC2 concentration was compared by tribological wear testing. The results show: 1) The incorporation of Ti3AlC2 particles plays an obvious catalytic role in the growth of PECC layer and the thickness is up to 74.74 μm; 2) When the concentration of Ti3AlC2 gradually increases, the PECC layers fluctuates obviously, and the deposition sealing effect is remarkable; 3) When the concentration is 4-6 g/L, the alloy has the best wear resistance, volume wear is only 1.98×10-4 mm3 /N·m. Experiments have shown that surface modification of the alloy using the PECC process can further broaden the application of the alloy in the field of anti-wear
Review of occupational health and safety management systems
Authors: Bedoya Marrugo Elias , Ramos Balseiro Daniela Patricia , Ríos Blanco Lina María
Published: April 2024

The Occupational Health and Safety Management System (SGSST) must be led and implemented by the employer or contractor, with the participation of the workers and/or contractors, guaranteeing through said system, the application of safety measures. Safety and health at work includes the improvement of workers' behavior, conditions, and the work environment also the effective control of hazards and risks in the workplace. Having in Note that Colombian law indicates in article 2.2.4.6.8 of Decree 1072 of 2015, corresponds to the Ministry of Justice and the Law, within the framework of the protection of workers' safety and health at work, must design, develop a plan of job annual for the compliance of those as per the objectives of S.G. –SST. It is worth mentioning that the goals, responsibilities, resources, and schedule of activities must be identified in accordance with the minimum standards of the System. In compliance as per above mentioned law, the Ministry presents the Plan of Safety and Health at work effectively in 2022 and committed to promote health in the workplace of work, prevention, the classification, and the determination of risk for promoting care and well-being of servers and contractors. By setting achievable goals that facilitate an excellent implementation of SG-SST based on the principles of the PHVA (Plan, Do, Check cycle and Act) to such an extent that the legal requirements enshrined in Resolution 0312 of 2019.
The utilization of kallistatin as a novel biomarker for the determining of serum in diagnosing liver diseases of animals
Authors: Ilina Oksana , Meškinyte Edita
Published: April 2024

Kallistatin is a novel biomarker, a plasma protein produced by the liver, utilized for diagnosing liver diseases in both humans and animals. The indicator can serve as a diagnostic indicator for assessing the extent of liver cell damage and as a marker for chronic liver diseases. The level of kallistatin decreases significantly in cirrhosis and is directly related to the biochemical indices of blood. Furthermore, the lower the level of kallistatin, the more pronounced the degree of liver cell damage. However, this indicator has not been sufficiently investigated in laboratory diagnosis, particularly its relationship to liver disease. Further research is needed to elucidate its diagnostic potential and clinical significance in liver pathology. In addition, for animals with chronic liver disease, it has been found that kallistatin can serve as a useful and reliable diagnostic indicator of liver health, particularly in cases of cirrhosis.
Quantification and analysis of flexibility in a power distribution network with penetration of non-conventional renewable sources
Authors: Suarique-Agudelo Juan Pablo , Herrera-Murcia Javier Gustavo
Published: April 2024

This work shows the quantification of the flexibility in power distribution systems in the scenario in which non-conventional renewable sources are connected to it. From a set of metrics available in the literature, one is selected based on its applicability to operational and distribution system planning scenarios. The theoretical foundation and detail of its computational implementation is shown. On the basis of this, its calculation is addressed for a distribution system in which non-conventional renewable sources and storage systems are present. From the results it is possible to identify quantifiable characteristics of flexibility to the variation in the operation of this type of systems.
Phytoremediation of Methylene Blue and Congo Red by duckweed (Lemna minor)
Authors: Ramírez-Castillo Flor Y. , Guillén-Padilla Diana E. , Méndez-Sandate Cristian I. , Guerrero-Barrera Alma L. , Avelar-González Francisco J.
Published: April 2024

Synthetic colorants are widely used globally by different industries for the dyeing process. However, these chemicals pollute the environment and affect human health by causing allergies, hives, dermatitis, and cancer. This study aims to compare the effectiveness of duckweed (Lemna minor) in the removal of the Methylene Blue (MB) and Congo red (CR) dyes at different concentrations (1 mg/L, 5 mg/L, 10 mg/L, and 15 mg/L). Absorbance values were determined at 665 nm for MB and 497 nm for CR after 96 hours. The results show higher removal of MB compared to CR for all concentrations (95.49 % vs. 59.32%, 1 mg/L; 97.24% vs. 39.43%, 5mg/L; 91.30% vs 28.47%, 10mg/L; y 85.42% vs 20.27%, 15mg/L). The removal of MB was observed after 30 min of contact with duckweed, while the removal of CR was observed after 24 hours in all concentrations.
Modelamiento y simulación de reactores fotocatalíticos de película descendente: uso de la dinámica computacional de fluidos (CFD) para análisis del sistema multifásico
Authors: Castilla Caballero Deyler Rafael , Medina Guerrero Astrid del Rosario , Machuca Martínez Fiderman , Colina Márquez José Ángel
Published: April 2024

La dinámica computacional de fluidos (CFD) se perfila como una herramienta apropiada para el modelamiento de procesos fotocatalíticos heterogéneos, pues permite considerar simultáneamente los diferentes fenómenos físicos trascendentales de los procesos. En el presente estudio se empleó el software COMSOL Multiphysics para modelar el régimen de flujo y determinar la distribución de las partículas de catalizador en un reactor fotocatalítico de película descendente, hecho relevante para determinar la eficiencia del reactor. Las simulaciones del reactor fueron realizadas con el módulo de Mezclas de COMSOL, en un régimen de flujo turbulento empleando el enfoque de RANS. Se detectaron siete zonas definidas con un perfil particular de concentración de catalizador en toda el área de la película, para las cuales se estimó la absorción fotónica en el reactor con el modelo de seis flujos (SFM). De ello se obtuvo que existe una diferencia de más del 20% entre el mayor y el menor valor del promedio de la absorción fotónica en el área reactiva, con lo que se puede esperar que la variación en la degradación de los contaminantes en estas zonas oscile entre el 10 y el 20%, lo cual debe tenerse en cuenta para la aplicabilidad de la tecnología.
Classification of nomophobia among Chinese college students: Evidence from latent profile and ROC analysis
Authors: Luo Jie , Bei Dong-Li , Gong Jie , Wang Meng-Cheng
Published: April 2024

Background and aims

Nomophobia (NMP) is a contemporary digital ailment referring to the improper utilization of smartphones which can have significant impacts on the physical and mental health of college students. However, as a result of unclear cutoff points, the proportion of people with NMP may be exaggerated. This study therefore aimed to determine the critical value of NMP and assess the extent to which Chinese college students are impacted by NMP using the Nomophobia Questionnaire (NMP-Q).

Methods

Latent profile analysis (LPA) and the receiver operating characteristic curve (ROC) were combined to determine the critical value based on NMP-Q scores using a large sample of 3,998 college students (Mage = 20.58; SD = 1.87).

Results

Based on latent profile (i.e., at-risk NMP group), ROC revealed an optimal cut-off point of 73 (Sensitivity = 0.965, Specificity = 0.970, Accuracy = 0.968, AUC = 99.60%, Youden's index = 0.935), and the percentage of NMP students being 28.04%, with 1,121 participants identified as positive cases (probable cases). Positive cases were found to exhibit more severe depression and anxiety symptoms, with a higher proportion of females were observed in the positive group (N = 829; 73.95%).

Conclusions

These findings provide evidence that the proportion of NMP individuals may have been overestimated in the past. Furthermore, this study helps to validate the NMP-Q as a valid tool to identify NMP in college-aged individuals.
DENSITY MONITORING OF BULK EMULSION EXPLOSIVES IN CONFINED BLASTHOLES
Authors: Sitonio Felipe França , Jair Carlos Koppe
Published: April 2024

Parameter’s control of explosives used in open pit mining operations have become more relevant over the years, bringing a better understanding of detonation performance. Giving into consideration that bulk emulsion density reflects on blasting results due to its importance in product sensitivity and velocity of detonation (VOD), blast designs are conducted assuming that cup density measurements are reliable and explosives gassing agents will perform as per specifications. Nevertheless, confinement conditions in boreholes are often neglected on predictive modelling. This paper describes the assembly of a device equipped with pressure sensors and its utilization in confined boreholes, obtaining in situ monitoring of density variation in explosive columns. The results enabled a comparison between bulk emulsion density variation when acting in different environments, providing detailed insights into how chemically sensitized explosives behave into different circumstances, giving the opportunity to re-evaluate blast design.
BALANÇO DA MATRIZ ELÉTRICA DO RN COM ÊNFASE NA PARTICIPAÇÃO DAS FONTES DE ENERGIAS RENOVÁVEIS
Authors: Alves Joyce Aline Oliva Rodrigues , Carvalho Neto Joao Teixeira de , Paiva Fabio Augusto Procópio de
Published: April 2024

O corrente artigo tem como objetivo primordial apresentar um panorama geral da magnitude da participação das energias renováveis na matriz elétrica do RN. Essencialmente, busca-se compartilhar dados quantitativos acerca dos empreendimentos de geração elétrica, com ênfase nas fontes renováveis. O acesso a tais informações poderá subsidiar pesquisas acadêmicas ou ainda alicerçar estudos associados ao incentivo ao uso de fontes renováveis, características que motivaram e justificaram a opção por esta temática. A pesquisa correlata ao levantamento das informações reuniu e analisou dados relativos às fontes energéticas do RN e disponibilizados pela plataforma SIGA da ANEEL. Acerca dos resultados, neste texto são apresentados um conjunto de tabelas e gráficos, ideados através da linguagem de programação Python e bibliotecas Pandas e Plotly, representativos dos quantitativos de empreendimentos em operação, classificados segundo múltiplos critérios, a saber: classificação de fonte energética, potências outorgadas e fiscalizadas, tipo de atuação e localização por município, dentre outras especificidades.
Examination of the Assimilative and Anti-Immigrant Policies, Practices, and Cultures that harm International College Athletes
Authors: Simran Sethi  , Kirsten Hextrum
Published: April 2024

International college athletes (ICAs) are distinct from other international students because of the demands of elite intercollegiate athletic participation. Institutional practices inaccurately position ICAs as a homogenous group with similar needs and utilize assimilation methods when providing support. We engage with integration and assimilation as theoretical frameworks to reveal how these approaches disrupt ICA’s college experiences. In reviewing existing literature, we consider how contemporary National Collegiate Athletic Association (NCAA) policies, higher education institution (HEI) practices, and athletic department cultures impose assimilation on ICAs while extracting their athletic talents. We found assimilation is normalized in NCAA’s amateur rules; in HEIs and their academic policies and practices; and in athletic departments. Throughout, we discuss how assimilation harms ICA’s athletic and academic achievement. We conclude with suggestions for the NCAA and its member institutions to adopt integrative policies and practices.
“In the Arena”: Reflections on Critical Public Engagements on College Sport
Authors: Johanna Mellis  , Derek Silva  , Nathan Kalman-Lamb
Published: April 2024

In this paper, we reflect on the challenges, opportunities, motives, imperatives, and strategies of engagement associated with public scholarship about college athletics. Public scholarship has become a trendy topic across the academy as universities increasingly push academic workers to boost institutional brands suffering from chronic underfunding through highly visible engagement in the public sphere. We argue that although public scholarship is a vital part of academic work, principal imperatives driving this form of labor should be political/ethical rather than promotional. It is therefore not enough for academic workers to simply generate data for academic audiences, as without public dissemination, the impact is inherently limited and exclusionary. While public engagement is a necessary and important part of our work, it is fraught with the contradictions inherent to the critique of the same institutions that demand that engagement in the first place, as well as the associated collateral intellectual and personal damage that comes from wading into public debate. Through an autoethnographical account of our personal experiences, as scholars intervening in public discourse around the rights of campus athletic workers and our own encounter with ESPN college basketball personality and former college coach Dan Dakich, we will trace some institutional and personal strategies for educators to create protective measures, build community, and mobilize solidarity against real or perceived harassment. Such tactics aim to help scholars produce public work that genuinely contributes to societal conversations, challenges prevailing misconceptions, and centers the voices of minoritized, abused, and exploited athletes above all.
Praksisrettleiing i møte med sårbare studentar
Authors: Steinnes Gerd Sylvi , Longva Kari Pauline
Published: April 2024

Intervjustudien som artikkelen bygger på undersøkte 10 praksislærarar sine erfaringar med rettleiing av studentar i praksis. Alle praksislærarane hadde minimum 15 studiepoeng rettleiarutdanning og hadde arbeidd meir enn ti år i barnehage. Gjennom individuelle intervju blei det særleg tydeleg kva for ulike dilemma desse praksislærarane opplevde i møte med studentane. Denne artikkelen set søkelyset på studentar si sårbarheit og undersøkjer følgjande problemstilling: Kva dilemma opplever praksislærarar i rettleiinga i møte med sårbare studentar i barnehagelærarutdanninga?
Artikkelen drøftar utfordringar knytt til rettleiing av studentar som strevar med faglege og personlege utfordringar. Særleg personlege føresetnader opptok praksislærarane. Mellom anna opplever dei i stadig større grad at studentar strevar med psykiske helse, noko som samsvarar med funn frå undersøkingar blant studentar generelt. Dette gjeld studentar praksislærarane vurderer å vere i ei gråsone der praksislærarane kjenner seg usikre på om den rettleiinga dei kan tilby er det studenten treng.
Praksislærarane legg vekt på å bygge relasjonar og å vere ei trygg base, men samstundes krev det relasjonelt mot å ta opp vanskelege saker og personlege forhold. Dei må balansere tilbakemeldingane slik at studenten ikkje trekker seg unna, men samtidig synleggjere forventningane til å vere barnehagelærar som del av vurderinga. Dette utfordrar det relasjonelle motet til praksislærar.
Artikkelen sitt søkelys på dilemma knytt til rettleiing av sårbare studentar i barnehagelærarutdanninga er i liten grad undersøkt tidlegare. Den kan såleis vere eit viktig bidrag til kvalitet i rettleiing, og kan danne grunnlag for viktige drøftingar i lærarutdanningane.
DOCÊNCIA E TECNOLOGIA DURANTE A PANDEMIA: QUESTÕES EPISTEMOLÓGICAS E METODOLÓGICAS A PARTIR DE MAX WEBER
Authors: Martinez Filho Alexandrino , Gomes Geovane Ferreira
Published: April 2024

Passada a pandemia da COVID-19, cuja uma das marcas deixadas na educação foi o uso emergencial das Tecnologias Digitais de Informação e Comunicação (TDIC), nos deparamos com a necessidade de estabelecer um referencial teórico a partir de um olhar dos clássicos das ciências sociais. Desta forma, este estudo se propõe a localizar um arcabouço epistemológico e metodológico que oriente a análise das implicações do uso das TDIC pelo docente nesse período, com base nos escritos de Max Weber, especificamente no texto “Ciência como Vocação”. Esta escolha deveu-se ao individualismo metodológico que o diferencia de visões mais estruturais dos fundadores da sociologia. Promoveu-se, portanto, um estudo dedicado da obra, incluindo a leitura de várias traduções da mesma, para dirimir dúvidas de interpretação, dada a complexidade do texto. Em posse desses conhecimentos, partiu-se para o refinamento e recorte do escopo da pesquisa, cuja área de observação se encontra nas séries iniciais do ensino fundamental da rede municipal de ensino de Campo Grande-MS. Resultou que localizamos em Weber questões relacionadas à especialização, intuição, sentido e paixão e, a partir desses conceitos, chegou-se a um modelo, que iniciando-se quantitativo, evolui para uma análise qualitativa de sentido e significado, ou seja, o que iniciou com uma visão mais técnica e focada na tecnologia, migrou gradativamente para o agente da ação: o professor e suas especificidades como profissional, considerando sua vocação para resolver os problemas com maior ou menor grau de dificuldade, conforme o domínio das TDIC que possuía na ocasião da pandemia.
Teaching and Research – How the Duo are not Mutually Exclusive
Authors:   Department of Electronics and Communication Engineering, MLR Institute of Technology, Hyderabad, Singh Rajan , Kumar P. Pramod ,   Department of Mechanical Engineering, MLR Institute of Technology, Hyderabad, Aravind K. ,   Department of Science and Humanities, MLR Institute of Technology, Hyderabad, Devi V. Radhika ,   Department of Science and Humanities, MLR Institute of Technology, Hyderabad
Published: April 2024

Teaching and research in academia have long been viewed as two different fields with a fuzzy, if not crisp, boundary. Nonetheless, the past few years have witnessed encouraging acceptance of their nature of complementing each other, rather than mutually exclusive endeavors. This paper highlights the dynamic relationship between these two essential pillars of higher education and presents some case studies to support the hypothesis. It also discusses how students stand to gain from the integration of Research-informed teaching pedagogy and effective usage of modern simulation, modeling, and analytical computer-aided design tools. The paper also underscores the need for higher technical educational institutes to develop a sustainable ecosystem where educators find these roles supporting each other and seamlessly transition between the two. The various takeaways of the case studies presented here assuredly suggest the potential benefits of research-enabled pedagogical practices in enriching students learning and improving retention capabilities. Keywords: Teaching, Research, Higher Education, Modern-tools Usage, Improved Learning
Conducting Qualitative Research Study: A Step-by-Step Process
Authors:   Engineering Pathways, Gallogly College of Engineering, University of Oklahoma, Norman 73019, USA, Kittur Javeed , Tuti Sandhya ,   Center for Engineering Education Development, KG Reddy College of Engineering and Technology, Hyderabad, Telangana, 501504, India
Published: April 2024

Recent years have seen an increase in the acceptance and recognition of engineering education research (EER) on a global scale. In particular, over the past ten years, EER has increased in India. Since EER is still in its early stages in India, it is important to comprehend the various EER research methodologies so that the most appropriate ones can be used when carrying out EER-related activities. Three methodologies are used in EER: quantitative, qualitative, and mixed. This paper's goal is to provide a thorough explanation of all the steps used in qualitative research methods for EER, along with relevant examples. Qualitative research is an investigation of a research topic under consideration by collecting non-numerical data to understand perceptions, opinions, experiences or beliefs of individuals or group of individuals. In qualitative research studies, data is collected through interviews, observations, focus group discussions, studying documents, etc. Qualitative research methods are used to fundamentally gain a unique in-depth understanding of a research topic which otherwise is difficult to explore through surveys used in quantitative research. The various steps involved in a qualitative research study typically consist of (1) concentrating on your interests and choosing a research topic, (2) framing research questions to be investigated, (3) conducting athorough literature review, (4) choosing/creating an appropriate framework to guide the study, (5) designing the research, (6) choosing the research site and research participants, (7) collecting data, (8) analyzing the collected data, (9) documenting significant findings, and (10) publishing results. Qualitative research has many benefits, including the collection of rich data, detailed evaluation of the data, an open-ended research process, the development of specific insights, etc. As a process document to direct themselves when conducting qualitative research projects, this paper will be helpful to beginning engineering education researchers. Keywords—coding, engineering education research, interviews, interview protocols, novice researchers, observations, qualitative research
Student Learning Improvement using Collaborative Presentations and Knowledge Sharing
Authors:   Department of Electrical Engineering, Rajarambapu Institute of Technology, Sakharale, Sangli-DT, MH, INDIA 415414, Kumbhar Sachin S. , Kalkhambkar Vaiju N. ,   Department of Electrical Engineering, Rajarambapu Institute of Technology, Sakharale, Sangli-DT, MH, INDIA 415414
Published: April 2024

Academic institutions hold the key responsibility for developing knowledge and skills to produce responsible and qualified engineering graduates. A lot of research has already been done regarding the importance of active learning techniques for engineering education. Active learning techniques help both teachers and students in many ways. Learning by teaching method encourages students to take the role of teacher to enrich their learning experience. This paper addresses the implementation of outcome-based education with Learning by presentation tactics and creating a databank of related subjects for student reference. This method improves a student’s communication skills, presentation skills, confidence level and thinking ability. Students were asked to study assigned topics and prepare a detailed presentation. Each student will teach the assigned topic to the whole class and should clear the doubts about the topic asked by peers. All the presentations are well arranged according to the topic and application. The whole bunch of presentations are returned to all the students for their reference and study when they face doubts or difficulties. Students were enthusiastic regarding their topic and presentations. There was healthy competition, and everyone was working hard to prove themselves. Two internal assessment modules are implemented in the same class which are compared using statistical methods. The results were analyzed using Statistical Package for the Social Sciences (SPSS) software and show that the method assists students learning and understanding students’ skills and performance.. Keywords— Collaborative Presentations, Knowledge Sharing, Learning, Teaching, SPSS, ANOVA
Empowering Engineers for Research Careers – Role of Undergraduate Research Experience and Institutional Support
Authors:   PSGIM, PSG College of Technology, Coimbatore Tamilnadu, Priyadarsini Dr.M.Kirupa , Kumar2 Dr.S.Pavan ,   School of Humanities, Social Sciences and Management (SHSSM), National Institute of Technology Suratkal , Karnataka
Published: April 2024

Promoting a research mindset among undergraduate students is crucial to fostering a culture of inquiry, critical thinking, and innovation. HEI’s impetus on research at undergraduate levels has garnered increased attention in recent years across the country. For India to make a mark in research, especially in publication at an international level, HEIs must recognize the value of a research-oriented curriculum. The paper attempts to study the effect of undergraduate research experience and institutional support among engineers on research mindset and the impact of research mindset on career aspirations in research. The study followed a descriptive & relational research design. With a theoretical background of expectancy-value theory, four study variables were identified through literature: Undergraduate Research Experience (URE), Institutional Support, Research Mindset, and Career Aspirations in Research. Final and Prefinal year engineering students from tier 1 and tier 2 engineering institutions were the target respondents. Validated scales were adopted and used to collect data. The hypothetical model was formulated and tested with three direct effect hypotheses and indirect effects. Structural equation modelling (covariancebased method) was administered to prove the theoretical framework. Opensource GUI Software, Jamovi, was used for this purpose. The test results indicate a positive impact of URE and Institutional support on research mindset, and research mindset has a positive impact on career aspirations in research among engineers. Suitable suggestions and recommendations follow. Keywords — Career aspirations, institutional support, Research Mindset, Undergraduate Research Experience, Structural Equation Modeling
Scaffolding Models in a Project-Based Learning Course- A Case Study
Authors:   School of Electronics and Communication Engineering, KLE Technological University, Karnataka, India
Published: April 2024

The study investigates the impact of establishing the different scaffolding models toward better percolation of knowledge and skills required to build a functional prototype in a first-year engineering Project Based Learning course. To facilitate students to design and build a mechatronics system, scaffolding students at various project phases is crucial. To cater to the need, scaffolding by the teacher all the time for all the project phases for a large classroom of students was challenging. Thus, there was a need to establish multiple scaffolding models to effectively scaffold students without burdening the teacher. This motivated the authors to establish the five scaffolding models. Data was collected from students and teachers involved in the course to measure the effectiveness of scaffolding models. Student data was collected through focus group discussion, while an interview was carried out with faculty to capture the data. The results reveal that designing multiple scaffolding models helped students to get just in time help to complete the projects and resulted in better design skills. The paper's outcomes help educators design scaffolding models for the PBL course in engineering for a large classroom. Keywords— Design Problems; Engineering Design Process; First-Year Engineering; Project-Based Learning (PBL); Prototyping skills; Scaffolding.