bluuebunny/crossref_metadata_2025 huggingface dataset:
Abusive leadership and turnover intention: How employee and work engagement act as shields
Authors: Hadi Syamsul , Sulistyawati Eni , Kirana Kusuma Chandra , Dianti Cindy Alfianuri Imas , Purnasari Eni , Ashakah Felix Onoriode
Published: February 2025

Abusive behavior in organizations is widely acknowledged to increase employee turnover intention, but the exact nature of this relationship remains debated in academic circles. This study aims to validate a structural model integrating employee engagement and work engagement as mediators between abusive leadership and turnover intention, addressing a gap in the current literature. This study used Harry King Nomogram sampling techniques, and primary data was collected from 111 employees working in the digital company sector. Utilize surveys to collect data, and then use SmartPLS’s Confirmatory Factor Analysis and Structural Equation Modeling to evaluate research model hypotheses. The hypothesis test shows that abusive leadership negatively impacts employee engagement and work engagement, employee engagement negatively impacts turnover intention, and work engagement negatively impacts turnover intention. However, the positive impact of abusive leadership on turnover intention was not supported. The mediation analysis between abusive leadership and turnover intention, conducted through employee and work engagement, demonstrated a comprehensive mediation effect. Abusive leadership was not proven to positively affect turnover intention, which means that how abusive the leadership behavior is is not why employees increase internal turnover. However, turnover intention can be increased when employees are not involved personally or in work. Organizations must ensure that they always carry out work engagement and employee engagement as an alternative to retaining employees.
Birds not in flight : using camera traps to observe ground use of birds at a wind-energy facility
Authors: Puffer Shellie , Tennant Laura , Lovich Jeffrey , Agha Mickey , Smith Amanda , Delaney David , Arundel Terence , Fleckenstein Leo , Briggs Jessica , Walde Andrew , Ennen Joshua
Published: February 2025

Camera trapping is increasingly used to collect information on wildlife occurrence and behaviour remotely. This provides insights into habitat use by species of interest and gathers information on non-target species. We implemented ground-based camera trapping to investigate behaviours of ground-dwelling birds and to monitor activities of Agassiz’s desert tortoises at their self-constructed burrows in a wind-energy facility near Palm Springs, California. While doing so, we collected data on numerous burrow commensals, including birds. Monitoring from late spring to midautumn showed regular use of tortoise burrows by 12 species of birds, the most abundant being the rock wren. Birds appeared to use the interior or vicinity of burrows for gathering nesting material, displaying, feeding, dust bathing and other activities. Of the species observed, 10 are known to be occasional casualties of turbine-blade strikes. Using camera traps focused at ground level can be a useful tool in avian conservation effort for measuring bird presence, activity and behaviour in altered habitats. Acquiring data over the long term by using ground-based monitoring with camera traps could add to our understanding of avian behaviour and habitat use in relation to wind-energy infrastructure and operations, and help determine the vulnerability of avifauna utilizing the area.
Efecto del enjuague bucal con cloruro de cetilpiridino en la microdureza superficial de los polimetilmetacrilato de autocurado, termocurado y CAD CAM. Estudio in vitro
Authors:   , Meza Zegarra Karol Milagros
Published: February 2025

Objetivo: Evaluar el efecto del enjuague bucal Vitis CPC Protect en la microdureza superficial de tres tipos de polimetilmetacrilato (PMMA): autocurado (Alike), termocurado (Vitalloy) y CAD/CAM (Telio CAD). Metodología: Se fabricaron 90 discos de PMMA, divididos en tres grupos de 30 discos, con dimensiones de 2 mm de espesor y 10 mm de diámetro. Cada grupo se subdividió en tres subgrupos (n = 10): El primer subgrupo para medir la microdureza inicial, el segundo se sumergió en agua destilada como control, y el tercero en enjuague bucal Vitis CPC Protect. Los discos se mantuvieron en soluciones de 20 ml durante 6 horas a 37°C, simulando el uso diario del enjuague dos veces al día durante 6 meses. La microdureza superficial Vickers se midió antes y después de la inmersión utilizando un durómetro Vickers con una carga de 50 g. Posteriormente, los datos fueron analizados estadísticamente mediante el test Anova de un Factor y el test de Comparaciones Múltiples deTukey.
Resultados: Los valores iniciales de microdureza fueron: Autocurado 14,05 ± 0,31, Termocurado 18,00 ± 0,60, y CAD/CAM 20,35 ± 1,80. Después de la inmersión en el enjuague bucal, los valores fueron: Autocurado 13,81 ± 0,20, Termocurado 17,20 ± 0,38, y CAD/CAM 19,21 ± 0,60. Los análisis ANOVA y la prueba de Tukey revelaron diferencias estadísticamente significativas en la microdureza de los PMMA termocurado y CAD/CAM (p < 0.05).
Conclusión: El enjuague bucal con cloruro de cetilpiridinio afecta la microdureza superficial de los PMMA de termocurado y CAD/CAM, siendo este último el más resistente a estos efectos. Sin embargo, al ser la disminución mínima, no se contraindicaría el uso del enjuague bucal en los pacientes con restauraciones provisionales de PMMA.
Estrategias bioclimáticas para mejorar el confort térmico en el diseño de la vivienda altoandina en el distrito de Santa Rosa, Puno en el año 2021
Authors:   , Condori Yallerco Evelin , Meza Ramon Danitza Ruth
Published: February 2025

En la actualidad, las viviendas en las zonas altoandinas no son aptas para soportar las bajas temperaturas del clima, lo cual perjudica la salud de las personas, llegando en algunos casos hasta perder la vida. Por ello, nuestra tesis tiene como objetivo identificar las estrategias bioclimáticas que se deben emplear en el diseño de la vivienda altoandina para asegurar el confort térmico en el distrito de Santa Rosa, de la provincia de Melgar, Puno en el año 2024. La investigación tiene un enfoque cualitativo. Para el análisis se tienen 4 instrumentos: ficha de análisis de los proyectos de intervención de construcción de viviendas nuevas y mejoramiento de viviendas existente del estado peruano y de entidades privadas, ficha de analisis de viviendas altoandinas existentes en trabajo de gabinete (a través de bibliografía) y trabajo de campo (levantamiento de información de 6 viviendas existente del distrito), encuesta a 50 pobladores del distrito y entrevista a 5 especialistas del tema. De estos 4 instrumentos se obtuvieron los siguientes resultados:. a. En criterios bioclimáticos, se determinó que es necesario la aplicación de los sistemas de captación solar pasiva pero teniendo en cuenta una orientación adecuada. b. En materiales y técnicas constructivas, se decidió utilizar el adobe como material de construcción ya que es local y posee alta masa térmica sin embargo es reforzado con geomalla para resistir el sismo. c. En tecnologías de energía renovable se precisó que es necesario implementar tecnología que generen electricidad como el panel fotovoltaico, calentador solar para generar agua caliente y el biodigestor para generar electricidad y biogás. d. En organización espacial se determinó respetar la costumbre de la casa patio...
Análisis Cienciométrico de la revacunación contra Mycobacterium tuberculosis: Dinamicidad, impacto y análisis de redes colaborativas
Authors:   , Checa Vieira Luis Roberto , Vasquez Davila Aylen Solange
Published: February 2025

Introducción: Mycobacterium tuberculosis es una enfermedad infecciosa que sigue siendo un problema de salud global significativo. A pesar de los esfuerzos para reducir la enfermedad, sigue siendo prevalente en muchas partes del mundo. Este estudio tiene como objetivo analizar la dinamicidad, impacto y análisis de las redes colaborativas sobre la revacunación contra Mycobacterium tuberculosis mediante un estudio cienciométrico en Scopus (2018 - 2024). Metodología: El estudio es retrospectivo, descriptivo, observacional; y todo se realizó con un enfoque cienciométrico en el cual la unidad de análisis fueron en su totalidad las publicaciones en revistas indexadas en la base de datos de Scopus entre 2018 y 2024, sin limitación de idioma. Para la recopilación de los artículos se realizó una estrategia de búsqueda avanzada en la base de datos Scopus. Se definieron criterios específicos de búsqueda, empleando combinaciones de términos clave como 'revacunación' y 'Mycobacterium tuberculosis', articulados a través de operadores booleanos para optimizar la relevancia de los resultados. Resultados: La institución más productiva fue la University of Cape Town, mientras que la University College London tuvo el mayor impacto en citas. La revista Frontiers in Immunology fue la más productiva, destacando Nature Communications en citas. Hatherill Mark fue el autor más prolífico con 17 publicaciones, aunque los índices h más altos no correspondieron necesariamente a los autores más productivos. Se observó un aumento en la cantidad de publicaciones, alcanzando su pico en 2020 con 52 publicaciones. En términos de colaboración, se identificaron fuertes redes entre países como Estados Unidos, Reino Unido y China, con autores como Hatherill Mark y Scriba Thomas J. ocupando posiciones centrales en estas redes. Conclusiones: Este análisis cienciométrico destaca...
Population structure of endemic Atlantic Forest spiny rats Trinomys dimidiatus and Trinomys iheringi (Echimyidae)
Authors: Oliveira Marcelo de Assis Passos , Vilasboa Anderson , Oliveira Marcione Brito , Bonvicino Cibele Rodrigues
Published: February 2025

The Atlantic Forest has experienced a significant loss of its original vegetation, with more than 80% of the biome now comprising small and isolated fragments. To understand species distribution, it is crucial to comprehend the impact of fragmentation on species persistence within this biome. Previous phylogeographic inferences have indicated that Trinomys iheringi and T. dimidiatus are structured into two populations each. In this study, we employed a more comprehensive database to re-examine the phylogeography and conduct a detailed analysis of the demographic history and population structure of two Trinomys species. The results indicate that T. dimidiatus is structured into at least three populations clusters: Serra dos Órgãos, South Center of Serra do Mar, and North of Serra do Mar. T. iheringi is highly structured into two populations: São Paulo and Ilha Grande. The demographic analysis indicated that T. dimidiatus from Serra do Mar exhibited an expansionist trend previously the Last Glacial Maximum (LGM). In contrast, T. iheringi experienced an expansion of suitable areas onto the emergent continental shelf during the LGM. Additionally, T. iheringi includes an entirely isolated island population exhibiting no gene flow, and analysis suggests the presence of a new microendemic species. The results presented here indicate that Trinomys species have complex genetic structure patterns that show the importance of Atlantic Forest ecosystem conservation.
The Thigh PICC: A Novel Approach to Long- term Vascular Access in Palliative Care - A Retrospective Study
Authors: Mussa Baudolino , Tammaro Maria Grazia , Parisi Antonella , Defrancisco Barbara
Published: February 2025

Background
Vascular access in palliative care presents unique challenges when traditional sites are unavailable. This study introduces and evaluates the thigh Peripherally Inserted Central Catheter (PICC), a novel approach for patients with compromised superior vena cava access [1].
Methods
We conducted a retrospective analysis of clinical data from January 2017 to December 2021, examining outcomes of thigh PICC placements in palliative care patients. The technique involves ultrasound-guided placement in the common femoral vein with tunneling to a mid-thigh exit site [2, 3].
Results
65 patients received thigh PICCs (67.7% female, 32.3% male; 43.1% ≤60 years). Primary indications were palliative care (35.4%), palliative chemotherapy (38.5%), and parenteral nutrition (18.5%) [4]. Median device duration was 4 months (range: 10 days to 42.1 months). Overall complication rate was 20%, including clinical thrombosis (7.7%) [8], infection (7.7%) [9], and mechanical complications (6.1%).
Trial Registration
Not applicable (retrospective study)
Climate change in medical education: A cross-sectional study assessing knowledge and perceptions among future health care providers in Egypt
Authors: Elbayar Rana , Omar Yusof M , Elkholi Menna A. , Nagy Mahmoud , Mesbah Sarah M. , Elsherbeny Enas
Published: February 2025

Background:
Preparing future healthcare providers to address the adverse effects of climate change on human health begins in medical school. This study evaluated the integration of climate change into the medical curriculum and assessed the knowledge, perceptions, and awareness of climate change and its health impacts among future healthcare providers in Egypt.
Methods:
A cross-sectional study was conducted among 895 students from five universities, including public, private, and Al-Azhar medical schools. An online self-reported questionnaire was used to assess the students’ understanding of climate change, its health impacts, and their perceptions regarding its integration into the medical curriculum and the role of healthcare professionals in combating climate change. Data were analyzed using appropriate descriptive and inferential statistics.
Results:
Over half of the participants (55.1%) reported the inclusion of climate change health impacts in their curriculum. Climate change knowledge, perceptions, and health impacts had mean scores of 2.39 ± 1.09 (out of 4), 30.9 ± 4.8 (out of 41), and 8.54 ± 2.98 (out of 12), respectively. The inclusion of climate change content in curricula had no significant impact on these scores (p value = > 0.05). Nonetheless, two-thirds of participants (66.7%) agreed that climate change health impacts should be included in the curriculum, and 71.4% expressed interest in learning more about it.
Conclusion:
The study reveals a significant gap in the integration of climate change health impacts into the medical curriculum in Egypt. These findings emphasize the need for improved integration of climate change education to better prepare future healthcare providers.
Digital Phenotyping of Parkinson’s Disease via Natural Language Processing
Authors: Aresta Simona , Battista Petronilla , Palmirotta Cinzia , Tagliente Serena , Lagravinese Gianvito , Santacesaria Paola , Benzini Allegra , Mongelli Davide , Minafra Brigida , Lunetta Christian , García Adolfo M. , Salvatore Christian
Published: February 2025

Frontostriatal degeneration in Parkinson’s disease (PD) is associated with language deficits, which can be identified using natural language processing, a remarkable tool for digital phenotyping. Current evidence is limited in linguistic coverage and mostly blind to the disorder’s cognitive phenotypes. We validated an AI-driven approach to capture digital language markers of PD with and without mild cognitive impairment (PD-MCI, PD-nMCI) relative to healthy controls (HCs). Analyzing the connected speech samples of participants, we extracted linguistic features with CLAN software. Classification was performed using Support Vector Machine and Recursive Feature Elimination. Discrimination between PD and HCs reached an AUC of 77%, with even better results for subgroup analyses (AUC 85% PD-nMCI vs. HCs; 83% PD-MCI vs. HCs; 75% PD-nMCI vs. PD-MCI). Key linguistic features included retracing ratio, action verb ratio, utterance error ratio, and verbless-utterance ratio, highlighting the foundational capabilities of linguistic digital markers for early diagnosis and phenotyping of PD.
Using Natural Language Processing to Explore Differences in Healthcare Professionals’ Language On Functional Neurological Disorders: A Comparative Topic and Sentiment Analysis Study
Authors: Mashuk Md Shadab , Lu Yang , Lai Lana YH , Shardlow Matthew , Saha Shumit , Williams Ashley , Lee Anna , Lloyd Sarah , Mohanraj Rajiv , Basilio Daniela Di
Published: February 2025

Background
Effective communication is essential for delivering quality healthcare, particularly for individuals with Functional Neurological Disorders (FND), who are often subject to misdiagnosis and stigmatising language that implies symptom fabrication. Variability in communication styles among healthcare professionals may contribute to these challenges, affecting patient understanding and care outcomes.
Methods
This study employed natural language processing (NLP) to analyse clinician-to-clinician and clinician-to-patient communication regarding FND. A total of 869 electronic health records (EHRs) were examined to assess differences in language use and emotional tone across various professionals—specifically, neurologists and psychologists—and different document types, such as discharge summaries and letters to general practitioners (GPs). Sentiment analysis was also applied to evaluate the emotional tone of communications.
Results
Findings revealed distinct communication patterns between neurologists and psychologists. Psychologists frequently used terms related to subjective experiences, such as ‘trauma’ and ‘awareness,’ aiming to help patients understand their diagnosis. In contrast, neurologists focused on medicalised narratives, emphasising symptoms like ‘seizures’ and clinical interventions, including assessment (‘telemetry’) and treatment (‘medication’). Sentiment analysis indicated that psychologists tended to use more positive and proactive language, whereas neurologists generally adopted a neutral or cautious tone.
Conclusions
These findings highlight significant differences in communication styles and emotional tones among professionals involved in FND care. The study underscores the importance of fostering integrated, multidisciplinary care pathways and developing standardised guidelines for clinical terminology in FND to improve communication and patient outcomes. Future research should explore how these communication patterns influence patient experiences and treatment adherence.
Impact of Advanced Simulated Case Scenarios on Medical Students' Perception of Non-Technical Skills: A Cross-Sectional Study
Authors: Basher Momna , Mohamed Sami , Begum Amina , Zidoun Youness , Houni Ali El
Published: February 2025

Background: Simulation-based medical education (SBME) has emerged as an innovative approach to enhancing both technical and non-technical skills (NTS) in medical education. NTS, encompassing communication, teamwork, and decision-making, are essential for patient safety and clinical outcomes. Perception of NTS development through simulated case scenarios, particularly in undergraduate medical education, is constantly being examined.
Objectives: This study aimed to assess the impact of advanced simulation-based case scenarios on final-year medical students’ perceptions of NTS, including communication, teamwork, and decision-making, and their role in improving patient care.
Methods: A cross-sectional observational study was conducted at Dubai Medical University, involving 60 final-year female medical students. Participants engaged in five simulated case scenario sessions during their clinical rotation. Data was collected via a 5-point ordinal Likert scale structured questionnaire with parts adopted from the validated Observational Skill-based Clinical Assessment tool for Resuscitation (OSCAR), assessing perceptions of NTS and their influence on patient safety. Descriptive statistics and Spearman’s correlation were used for analysis utilizing the SPSS v29 software.
Results: Out of the total 60 included participants, most reported high levels of agreement on the importance of NTS, with mean scores ranging from 4.47 to 4.58 across constructs. Communication demonstrated the strongest correlation with perceived impact on patient safety (rho = 0.774, p < 0.001), followed by teamwork (rho = 0.760, p < 0.001) and decision-making (rho = 0.671, p < 0.001). Feedback sessions and structured debriefings based on the Pendleton model enhanced participants’ understanding and application of NTS.
Conclusion: Advanced simulated case scenarios incorporating structured briefing and debriefing positively influence NTS perception among medical students, in addition to their implications on patient safety and clinical outcomes. Future research should explore the integration of advanced technologies, such as virtual reality and artificial intelligence (AI). Longitudinal studies should evaluate real-world application of NTS in clinical settings as a result.
Time spent on the Internet, problematic gaming and social media use among adolescents
Authors: Berber Sophia , Potzel Katrin , Kammerl Rudolf , Wartberg Lutz , Meyer Caroline
Published: February 2025

Increased Internet use during the COVID-19 pandemic and the possibility of problematic usage patterns and associated disorders among adolescents has become an important research topic. The longitudinal quantitative study presented in this article examines changes in adolescents’ use of online games and social media over the four-year period 2018 to 2021, focusing on the existence of problematic patterns before and during the COVID-19 pandemic. Data were collected from adolescents and one parent each (multi-perspective approach) at intervals of one year (four measurement points, t3 to t6). The sample consisted of 852 dyads at t3, with 474 dyads remaining in the sample at t6. The adolescents were between 13 and 16 years old at t3; Young people with problematic Internet usage were oversampled. Statistical analyses of the data comparing mean values show that the total time spent online, the time spent on gaming, and the time spent using social media increased significantly over the period under investigation. However, the results clearly show that problematic gaming and problematic usage of social media decreased significantly: Increased time spent on gaming and social media was not associated with problematic usage patterns. Rather, problematic use decreased significantly over the period, which included the COVID-19 pandemic (2020–2021). These findings run counter to results of past studies that reported a rise in problematic usage patterns during the COVID-19 pandemic. Although our results show an increase in digital media usage during this four-year period, that increase was not accompanied by more problematic usage patterns.
Susceptibility and Yield of Kale Horticultural Types and Cultivars Affected with Black Spot Caused by Alternaria brassicicola and Alternaria japonica
Authors: Keinath Anthony P.
Published: February 2025

Curly kale (Brassica oleracea var. sabellica), lacinato kale (B. oleracea var. palmifolia), Portuguese kale (B. oleracea var. costata), and Siberian kale (Brassica napus var. pabularia) are produced with conventional and organic practices in the southeastern United States. The foliar disease black spot, caused by the fungi Alternaria brassicicola and Alternaria japonica, may reduce yields of curly kale, but its effects on other kale types are unknown. The objectives of this study were to determine which kale cultivars had the lowest percentage of symptomatic leaves (disease incidence) and greatest yield of healthy leaves when grown with conventional and organic practices in fall and spring. Single-row plots of 14 kale cultivars were inoculated on the ends with one Alternaria sp., which then spread to noninoculated plants in the center of the plot. Season, production, pathogen species, harvest, and inoculation affected cultivar performance; season had the largest effect. In general, Portuguese kale was the most susceptible kale type, followed by curly kale. Black spot incidence was greater at the second harvest of cropped plants than at the first harvest. Siberian kales yielded more than curly and lacinato kales, although green curly kale cultivar Winterbor had yields similar to the best-yielding Siberian kales.
An Innovative Positive Pressure Walk-in Tunnel for Minimizing Insect Infestation and Pesticide Use for Growing Fresh Herbs
Authors: Nitzan Nadav , Adler Uri , Goren Hezi , Silverman David , Decco Tzion
Published: February 2025

Infestation with insects disqualifies fresh spice herbs for local and export markets, severely affecting revenue and the grower’s reputation. An innovative positive pressure walk-in tunnel, in which air is drawn and filtered via insect screens into an enclosed, pressurized growing structure was designed and tested as a solution for mitigating crop infestation. In four field trials between 2019 and 2024 with sweet basil (Ocimum basilicum), the efficacy of the positive pressure tunnel was tested and compared with the current commercially used passive, pesticide-sprayed tunnel. Insect counts were reduced by 81%. Yields were 55% higher than in the passive control, and basil downy mildew (BDM), caused by Peronospora belbahrii, was inhibited in two of three trials in the pressurized system without pesticides. Over the 4-year study, chemical pesticide use was reduced by 88% and the number of basil harvests increased by 33%. An economic viability for sweet basil calculated the positive pressure tunnel to be $22,000 USD/hectare more profitable than the currently used passive tunnels. The research verified that the positive pressure tunnel was effective in reducing insect penetration and minimizing pesticide applications. Growers incorporating this innovative apparatus are expected to produce crops with reduced pesticide exposure or pesticide-free, appealing to customers’ desire for high-quality produce.
ABPA CLINICAL PRESENTATION AND FOLLOW UP-A CASE SERIES
Authors:   Assistant Professor, Pulmonary Medicine, Katuri Medical College & Hospital., Pritham T. , Beaulah R. ,   Junior Resident, Pulmonary Medicine, Katuri Medical College & Hospital., Gopinath M.V.R. ,   Assistant Professor, Pulmonary Medicine, Katuri Medical College & Hospital., Pranay Y. ,   Junior Resident, Pulmonary Medicine, Katuri Medical College & Hospital., Gopichand N. ,   H.O.D, Pulmonary Medicine, Katuri Medical College & Hospital.
Published: February 2025

ABPA (allergic bronchopulmonary aspergillosis) is immunologically mediated lung disease in response to aspergillus fumigatus1 in patients with asthma or cystic fibrosis2. A series of 5case reports of patients diagnosed with ABPA from 2022-2024 at Katuri medical college & hospital. The Clinical history mostly dominated by asthma & its exacerbations,radiological featuresmostly of bronchiectasis and mucus plugs and laboratory investigations were reviewed. This case series highlights the importance of early recognition of symptoms and early initiation of treatment®ular follow-up in order to prevent exacerbations.
Fabrication and characterization of interdigital transducer structures as temperature sensors by two-photon lithography
Authors: Waqar Tayyab , Li Borui , Ersoy Sezgin , Jradi Safi , Ravaine Serge , Dietzel Andreas
Published: February 2025

Continuous developments in the field of 3D printing techniques and equipment have enabled their usage in the field of electronics structures, circuits, and device fabrication in addition to many other fields. This advancement has enabled the potential fabrication of sensors using silicon-based micro or even Nanoelectronics. Currently, the manufacturing and packaging of such devices and structures are heavily reliant on lithography, which can be slow and can involve substantial processing requirements. In this paper, a temperature-sensing Interdigital Transducer (IDT) structure was designed and fabricated using Direct Laser Writing (DLW) based on Two-Photon Lithography (TPL), which is a high-resolution 3D printing technology. The TPL in a positive photoresist was combined with the physical vapor deposition method and the lift-off process to create gold IDT microstructures. The developed sensing structures were characterized using a network analyzer to determine the resonance frequency and its dependence on the temperature changes. The results showed that the IDT structures exhibit a linear response toward the changes in temperature with an average sensitivity of 0.123 MHz/°C. The most important advantage in producing the IDT structure with the additive manufacturing technique is that a very small-sized structure is produced error-free and efficiently.
Vibration velocity control of compound wedge-shaped excavation blasting in tunnels under complex environments
Authors: Liu Haoshan , Huang Yonghui , Zhang Zhiyu , Song Yongkang
Published: February 2025

This paper explores the optimization of cutout schemes in tunnel excavation and blasting by introducing an improved segmented wedge-shaped blasting method, validated through both numerical simulations and field tests. The numerical simulations use the ANSYS/LS-DYNA fluid-solid coupling algorithm to analyze the damage effects, effective stress distribution, and vibration characteristics of surrounding rock for both the Conventional wedge cut and the segmented wedge cut methods. The results show that segmented wedge cutting significantly enhances the utilization rate of blast holes, reduces the formation of large gravel fragments, and effectively mitigates surrounding rock vibration velocities. In comparison to the Conventional method, the optimized undercut scheme not only increases blasting efficiency but also greatly enhances the rock fragmentation in the undercut area, thereby ensuring tunnel construction safety. The field test results validate the accuracy of the numerical simulations and show that the enhanced scheme holds significant potential for practical application in real-world projects.
Air Disinfection Performance of Chlorine Dioxide
Authors: Sviridenko Galina , Shukhalova Olga , Mamykin Denis
Published: February 2025

Air is a potential source of mold and yeast contamination for both raw materials and finished products on industrial premises. Only regular air disinfection guarantees shelf-stable high-quality finished dairy products. Aerosol disinfectant is a popular air treatment method in the food industry. Chlorine dioxide (ClO2) is known for its strong oxidizing capacity and a wide bactericidal range of action. This research tested chlorine dioxide (8.25 and 16.5 mg/dm3) against Kluyveromyces lactis (Saccharomyces lactis) and Penicillium roqueforti. The working concentration of 0.25% chlorine dioxide (8.25 mg/dm3) demonstrated a strong bactericidal effect and 100% fungicidal action against yeast and mold cells in the air after 30 min of exposure. In case of high sanitary and hygienic requirements, e.g., sterile air, the effective concentration was 0.50% (16.5 mg/dm3). Chlorine dioxide demonstrated excellent performance as an air disinfectant for milk processing facilities.
Functional Milk Product Fortified with Iron Mixed-Ligand Chelate Complex
Authors: Blinov Andrey , Serov Alexander , Samovolov Artem , Askerova Alina , Slyadneva Kristina , Rekhman Zafar
Published: February 2025

Ferrous ascorbate nicotinate has a concentration-dependent effect on the sensory and physicochemical profile of milk. In this study, it was synthesized using a mechanochemical method with such reagents as ascorbic acid, nicotinic acid, iron (ii) sulfate, and barium hydroxide 8-water. Different concentrations of ferrous ascorbate nicotinate had no significant effect on active acidity, surface tension, titratable acidity, and electrical conductivity. However, the radius of the particles in the colloidal phase depended on the concentration of the ironcontaining additive. At 30 and 50 % daily iron intake, the chelate iron complex resulted in the smallest hydrodynamic radius of the micelles in the dispersed phase of milk. As for the hydrodynamic radius, the milk samples had a monomodal particle distribution. As for the sensory profile, the new product was slightly different from the control sample in taste and smell. The best sensory score belonged to the samples with iron chelate complex containing 10, 30, and 50 % daily iron intake. At 10 %, the color was milky white. At 100 %, it turned pinkish, i.e., the color of chelated iron. In general, the new milk product fortified with ferrous ascorbate nicotinate demonstrated good consumer properties.
Effect of Hazardous Factors on Quality and Safety of Curd Products during Processing
Authors: Skryabina Olga , Ryabkova Dina
Published: February 2025

Quality and safety are the key criteria in curd production. These indicators depend on a set of regulated factors that are connected with the raw materials. Technical Regulations of the Customs Union TR CU 021/2011 Safety of Food Products demand that food enterprises should develop, implement, and maintain procedures based on the quality system principles. Such an approach provides more competitive products. The article describes the effect of hazardous factors on traditional and functional curd products. The research covered elements of quality management systems in curd production. The theoretical and empirical studies relied on standard sensory and microbiological methods. The analysis of hazardous factors revealed critical control points, which were represented as a risk diagram and a HACCP plan (Hazard Analysis and Critical Control Points). The research was part ofthe priority area in Technologies of Personalized, Therapeutic, and Functional Nutrition for Health Preservation (Decree of the President of the Russian Federation of June 18, 2024, No. 529). The results were implemented in commercial production.
Socio-economic optimum of urban drainage expansion for climate change adaptation
Authors: Rosbjerg Dan
Published: February 2025

The use of socio-economic methods for designing urban drainage expansion to account for climate change is gradually coming into praxis and has recently become mandatory in Denmark. A few different return periods for damaging rainfall must be selected, and the one that leads to the greatest net present value considering expenses as well as savings into account should be chosen. Here, a method is suggested that addresses a continuum of return periods of the damaging rainfall instead of selecting only a few return periods for comparison. Based on log-linear relations for the damage costs caused by rainfall and the cost of drainage expansion as functions of the rainfall return period, and by adopting continuous discounting, an optimal solution has been determined by minimizing the present value of all incurred costs. Alternatively, using a cost–benefit analysis, the net present value has been maximized leading to the same optimum. The method is shown to be robust and has been further extended to consider refinancing into account, to assess the socio-economic costs of delaying climate change adaptation and to apply a time-varying discount rate.
The attitude to a special military operation: by the materials from a focus group study of young people in Penza region
Authors:   Penza State University, Sh. Dubina Albina , A. Vlazneva Svetlana ,   Penza State University
Published: February 2025

Background. Today, our country is in an extremely contradictory position. The foreign policy course pursued by Russia in the global political arena in conditions of instability has a tremendous impact on the formation of attitudes towards foreign policy chal-lenges on the part of young people. One of the modern threats is the threat to the sovereignty and integrity of the country, which served as the basis for conducting a special military operation. The purpose of the article is to analyze the attitude of young people towards their education in Ukraine. Materials and methods. The article uses the results of a questionnaire survey of student youth (2023), empirical data obtained within the framework of focus groups among the youth of Penza region (2024), research materials from all-Russian centers. Results. The results of a questionnaire survey and focus groups are analyzed regarding the level of interest and concern of young people about the events taking place within the framework of their own, as well as their approval of the course towards a forceful solution to the conflict and the most preferable prospects for further development of the situation. Conclusions. The attitude of young people to the beginning and course of events related to their education has been revealed and determined. Young people support the actions of the authorities regarding the beginning and progress of the operation, and also have fairly positive forecasts regarding the outcome and completion of the operation for Russia.
MODELING THE CONTROLLABILITY OF CHARACTERISTICS OF PLASMON GRAPHENE NANOANTENNA GRATINGS IN THE MID-IR RANGE
Authors:   Penza State University, S. Makeeva Galina
Published: February 2025

Background. The introduction of nanoantennas for optical wireless communications in the infrared (IR) and visible bands enables higher data rates while reducing antenna size. The ability to tune the characteristics of graphene by chemical doping or bias voltage is relevant in the development of reconfigurable nanoantennas. The goal of the work is to study the characteristics (S-parameters, radiation patterns (RP)) of plasmonic graphene nanoantenna (PGNA) arrays, their controllability and the possibility of frequency scanning when changing the chemical potential of graphene (by applying an external electric field) in the mid-IR range. Matherials and methods. The use of graphene, which has good electrical conductivity, controlled conductivity and plasmonic properties in the terahertz (THz), far-IR and mid-IR ranges, is one of the most promising alternatives to noble metals (Au and Ag) as plasmonic materials at optical frequencies only. Modeling of the characteristics of PGNA arrays was carried out using the electrodynamic modeling program CST Microwave Studio 2019, which makes it possible to solve scientific problems associated with the design of graphene antennas in the IR wavelength range. Results. The results of modeling the controllability of the characteristics (S-parameters, DP) of a element of the antenna array (PGNA of rectangular geometry) and PGNA arrays at the resonant frequencies of the fundamental mode of surface plasmon polaritons (SPP) are obtained and the possibility of scanning in frequency when changing the chemical potential of graphene (by applying an external electric fields) in the mid-IR range. Conclusions. From the results of modeling the characteristics of PGNA arrays, it follows that with an increase in the chemical potential of graphene (in the range of values 0,3–1 eV), the operating frequencies are adjusted (frequency scanning) in the mid-IR range, the gain of the PGNA array increases, the RP main lobe narrows, and the RP side lobe level decrease; with an increase in the number of single elements (N = 256), the levels of the RP side lobes decrease and better controllability of the RP main lobe is observed.
Percursos de inserção profissional: um estudo com egressos da licenciatura em música da UERN
Authors:   , Costa Anne Valeska Lopes da
Published: February 2025

A presente pesquisa teve como objetivo geral investigar os percursos de inserção profissional dos egressos do curso de licenciatura em Música da UERN formados entre 2008 e 2018 e, como objetivos específicos: caracterizar os licenciados em Música da UERN, desvelar a trajetória de inserção profissional dos egressos e identificar os percursos de inserção por quais eles passaram. Partindo das ideias de autores que entendem a inserção profissional como um processo que possui início, meio e fim (VINCENS, 1997; VERNIÉRES, 1997; ALVES, 2009), entendo, neste estudo, como inserção profissional, a passagem de um estado inicial a um estado final, sendo o estado inicial a obtenção de qualquer atividade remunerada na área de música e a final a obtenção de um emprego com vínculo contratual absolutamente estável ou a uma situação de relativa estabilidade no mundo do trabalho. Busquei, neste trabalho, responder ao seguinte questionamento: Quais os percursos de inserção profissional dos egressos do curso de licenciatura em Música da UERN? O método de pesquisa utilizado foi o survey interseccional. Foram aplicados questionários online com os egressos do curso de licenciatura em Música da UERN, por meio da ferramenta de pesquisa JotForm. A população de estudo é formada por 140 egressos graduados entre os anos 2008 e 2018. Os dados aqui apresentados correspondem a uma amostra de 116 egressos, que corresponde a 82,8% da população. Os resultados mostram que os egressos da licenciatura em Música da UERN são, na sua maioria, homens, brancos e pardos, oriundos de famílias de baixa renda, que se inseriram no mundo do trabalho em música antes mesmo de cursarem a graduação, principalmente em empregos sem estabilidade, mas que, após cursarem a graduação em Música, a grande maioria ascendeu profissionalmente, obtendo trabalhos mais seguros, principalmente com o vínculo de servidor público concursado. De modo geral, três percursos de inserção foram os mais comuns entre os egressos da licenciatura em Música da UERN antes, durante e após a conclusão do curso: o percurso de inserção precoce em um emprego instável (44%), o percurso de inserção concomitante em um emprego instável (50,8%) e o percurso de inserção demorada de licenciados em um emprego estável (25,8%). Além desses, 9,4% dos egressos passaram pelo percurso de inserção precoce em um emprego estável, 14,6% pelo percurso de inserção concomitante em um emprego estável, 11,2% pelo percurso de inserção rápida em um emprego estável, 6,8% passaram pelo percurso de estabilidade na instabilidade, 3,4% passaram pelo percurso de inserção precária e 14,6% encontram-se no percurso de exclusão
Movimentos Feministas e Mulheres nas organizações:
Authors: Reis Rosa Maria da Silva , Alves Gonçalves Raquel , Cardoso Campos Alyce
Published: February 2025

Este artigo tem como objetivo  investigar o impacto dos movimentos feministas no contexto das organizações, com foco na jornada de trabalho e no equilíbrio entre trabalho e família das mulheres. Os movimentos feministas têm lutado por mudanças significativas, reivindicando políticas e práticas que promovam esse equilíbrio, como a redução da jornada de trabalho, flexibilidade de horários, licença parental igualitária e apoio à maternidade. Além das demandas dos movimentos feministas, as organizações também têm um papel relevante na promoção do equilíbrio entre trabalho e família. Isso inclui a implementação de políticas e práticas que apoiem a igualdade de gênero, diversidade e inclusão, bem como a criação de uma cultura organizacional que valorize esse equilíbrio. Foram realizadas entrevistas com mulheres casadas e solteiras, com filhos e sem filhos, que estão atualmente inseridas no mercado de trabalho, na cidade de Belo Horizonte - MG e região adjacente. Essa pesquisa pode contribuir para o diálogo contínuo sobre igualdade de gênero, apoiar o progresso social e fornecer insights e recomendações práticas para organizações e formuladores de políticas interessados em criar ambientes de trabalho mais justos e equilibrados.
Ecodesign:
Authors: Souza Fernando Rodrigo , Silva Mônica Oliveira Pinheiro da , Bueno Fabiano Gregolin de Campos
Published: February 2025

Com constantes discussões acerca dos impactos negativos que a alta produtividade de vários segmentos causam no meio ambiente, torna-se cada vez mais necessária a discussão sobre a pegada de carbono que as atividades humanas deixarão para as futuras gerações. Para tentar mitigar os efeitos nocivos, há ferramentas e ações que podem ser realizadas durante o processo produtivo. A pesquisa de campo foi realizada em um Ateliê, situado na cidade de Itu, onde se trabalha com o conceito de madeira bruta, ou seja, burilando apenas o necessário para os trabalhos, trazendo o conceito de produção eco-friendly, sem incorrer no greenwashing, pois o Ateliê não possui nenhuma certificação ISO NBR e foram avaliadas as ações ocorridas através de documentações fornecidas de procedência da madeira, fichas técnicas dos materiais fixadores, notas fiscais das matérias primas, ferramentas QFDE e DfE e interação entre as normas. O estudo apontou que mesmo que a empresa não objetive obter certificações pertinentes a seus produtos, utiliza da Voz do Consumidor (VoC), respeitando o tripé da sustentabilidade: econômico, ambiental e social atendendo aos requisitos das normas, mesmo sem sua implantação. Porém, há fronteiras técnicas a ser superadas, pois através das interações, foi possível verificar que mesmo com todos tratativas concernentes à sustentabilidade, a priorização voltou-se aos quesitos danosos de ação extrativista, mesmo que de forma controlada, produtos químicos utilizados prejudicando a degradação no fim de vida e o modal rodoviário utilizado no país, com importante impacto nas questões de sustentabilidade.
Análise comparativa de fatores determinantes da variabilidade do EBITDA e EVA® de empresas do agronegócio
Authors: Tietz Kamilla , Santos José Odálio dos , Santos Augusto Felippe Caramico dos , Jardim José Renato de Paula Souza
Published: February 2025

O agronegócio brasileiro vem apresentando histórico de geração contínua de superávits comerciais com representatividade de 27% do Produto Interno Bruto (PIB) do país. Para avaliar se empresas de referência do setor apresentaram resultados favoráveis e retornos anormais, mesmo em cenário de recessão econômica, esta pesquisa comparou a medida operacional tradicional EBITDA com uma medida de valuation de empresas, o EVA®, já que esse segundo indicador de desempenho mede a capacidade de adicionar riqueza a seus acionistas dentro de um horizonte indeterminado de tempo e não dentro de uma visão efêmera de resultados. O objetivo principal deste trabalho foi identificar os principais índices e indicadores de fundamentos de mercado, estatisticamente significativos, determinantes da variabilidade do Lucro Operacional (EBITDA) e do Valor Econômico Agregado (EVA®) de duas empresas de referência do setor do agronegócio (SLC Agrícola e BrasilAgro). Para analisar cenários econômicos distintos, selecionou-se o período de 2012 a 2022, que incluiu as recessões econômicas de 2015 e 2016, com oito trimestres sucessivos de Produto Interno Bruto negativo e, de 2015 e de 2020, com a deflagração da pandemia Covid-19. Para isso, foi utilizada a metodologia de painel de dados. Os resultados obtidos sugerem que as variáveis independentes selecionadas representam dados que capturam parcialmente o desempenho contábil, o setorial e o de conjuntura econômica do período analisado. Observou-se uma relação inversa entre o EBITDA e o EVA®, enquanto o PIB Agro e o EMBI-BR, juntamente com os p-values associados, não demonstraram significância durante os períodos analisados. Isso sugere que o desempenho das empresas do agronegócio geralmente não é significativamente afetado por cenários econômicos adversos.
Formación de competencias para la innovación:
Authors: Leon Jorge Mendoza , Ochoa Juan José García , Bernal Claudia Álvarez , Aguirre Marco Antonio Hernández
Published: February 2025

El mercado laboral global exige una serie de habilidades en el perfil profesional, entre otras, la relacionada a gestionar los procesos de innovación. Es así que el presente estudio se plantea el desarrollo de una experiencia en el proceso de enseñanza-aprendizaje, en el cual, mediante un modelo, se busca desarrollar el proceso creativo y potenciar la innovación, utilizando elementos lúdicos, propios del concepto conocido como Juego Serio. El objetivo es la formación de habilidades como el cuestionamiento, la observación, la asociación, el relacionamiento y la experimentación que contribuyan a la formación de competencias profesionales en la gestión de la innovación en estudiantes de un programa de posgrado en del Instituto Tecnológico de Sonora. Asimismo, los resultados muestran que, mediante el diseño y abordaje de un workshop, los sujetos muestran las competencias adquiridas, mismas que validaron en campo y con impacto para la empresa donde ejecutaron la práctica, lo cual permite concluir en la pertinencia y utilidad de las herramientas de juego de una manera más eficiente y eficaz, como complemento a la formación de habilidades técnicas propias de la disciplina del posgrado.