bluuebunny/crossref_metadata_2025 huggingface dataset:
Mathematical Approaches to Economic Riskology in Project and Financial Management
Authors: Oleksandr Levchenko
Published: February 2025

In the ever-evolving realm of project and financial management, the capacity to proficiently identify, assess, and mitigate economic risks is critical for achieving successful outcomes. This paper delves into a range of mathematical approaches to economic riskology, with a particular focus on their application within project and financial contexts. We commence by defining essential concepts in economic risk management and elucidating the importance of mathematical modeling in quantifying uncertainties. The study systematically reviews established methodologies, including probabilistic models, optimization techniques, and simulation methods, demonstrating how these analytical tools can significantly enhance decision-making processes. Through the examination of case studies, we illustrate the practical implementation of these mathematical approaches, underscoring their efficacy in predicting potential risks and optimizing resource allocation. Ultimately, this research aspires to present a comprehensive framework for the integration of mathematical techniques into economic risk management practices. By doing so, it aims to foster resilience and sustainability in project and financial endeavors, equipping practitioners with the necessary tools to navigate the complexities of economic uncertainties effectively.
Some Translations in Bipolar Valued Vague Subnearrings of a Nearring
Authors: S. Kamalaselvi
Published: February 2025

In this paper, new definitions are introduced and translations of bipolar valued vague subnearring of a nearring are presented. Translation is one of the applications in mathematics, so all translations are also a bipolar valued vague subnearring of a nearing.
Performance Optimization of Hybrid Encryption Techniques in Oracle Cloud Infrastructure: A Comparative Study
Authors: Sourabh Jain
Published: February 2025

Cloud security has become a critical concern due to the increasing volume of sensitive data stored and processed in cloud environments. Traditional encryption methods often fail to balance security, efficiency, and scalability, leading to vulnerabilities in cloud infrastructure. This study explores the performance optimization of hybrid encryption techniques in Oracle Cloud Infrastructure (OCI) by integrating RSA, Blowfish, Homomorphic Encryption, and Blockchain-based key management. The proposed models enhance data confidentiality, secure key exchange, and time-limited access control. Experimental results show that RSA + Blowfish and Homomorphic Encryption + Blockchain achieve higher accuracy (99.86%), lower decryption latency, and reduced error rates (MSE: 0.189, MAE: 0.349) compared to existing techniques. These findings establish hybrid encryption as a robust solution for securing OCI-based data storage and computation while maintaining optimal performance.
Comparative Analysis of Machine Learning Models for Intrusion Detection Systems
Authors: Vikrant Sharma
Published: February 2025

Intrusion Detection Systems (IDS) play a crucial role in modern cybersecurity, leveraging machine learning (ML) to detect and mitigate cyber threats effectively. This study provides a comparative analysis of multiple ML-based IDS models, including XGBoost, Generative Adversarial Networks (GAN), Artificial Neural Networks (ANN), Support Vector Machines (SVM), Decision Trees, and Random Forest classifiers. The results indicate that XGBoost (98%) and GAN-based IDS (96%) achieve the highest accuracy, demonstrating superior adaptability in detecting sophisticated attacks. ANN and SVM also exhibit strong performance, while traditional classifiers such as Decision Trees and Random Forests struggle with complex attack patterns. Despite ML advancements, challenges related to data quality, computational efficiency, and evolving cyber threats remain. Future research should focus on hybrid ML approaches, adversarial learning, and real-time IDS deployment to enhance security frameworks. This study underscores the importance of adaptive ML-driven IDS models in mitigating cybersecurity risks.
Sexual extortion of Australian adolescents: Results from a national survey
Authors: Wolbers Heather , Cubitt Timothy , Napier Sarah , Cahill Michael , Nicholas Mariesa , Burton Melanie , Giunta Katherine
Published: February 2025

Sexual extortion is a form of blackmail in which a perpetrator threatens to release intimate material of a victim unless they comply with certain demands. We examine the prevalence and nature of sexual extortion among a sample of 1,953 adolescents residing in Australia. More than one in 10 adolescents had experienced sexual extortion in their lifetime (11.3%), one in three of whom experienced more than one instance. More than half experienced sexual extortion before the age of 16, and two in five were extorted using digitally manipulated material. Two-thirds of those who experienced sexual extortion had only ever met the perpetrator online, and there were important differences in experiences between genders. Preventing children from being sexually extorted should be a priority for social media and messaging platforms, and should be a collaborative effort across multiple sectors.
運算思維策略運用在國小低年級字詞解碼教學的實踐歷程與成效研究
Authors: 張正萱 張正萱 , 詹惠雪 詹惠雪
Published: February 2025

「字詞解碼」涵蓋識字、詞彙、流暢性三階段，是國小低年級國語文學習的核心。為解決學生在字詞學習上的困難，本研究運用部首進行集中識字教學，結合運算思維的分解、邏輯、模式策略，在國小二年級進行字詞解碼教學。研究採行動研究方法，於2023年2月至6月，共十六週、總計十六節課，進行兩循環教學，並以綜合分析多項資料進行反思與修正。研究結果顯示：一、集中識字教學設計有助於學生建構閱讀理解與語文基礎，強調部件辨識與組字規則；二、結合運算思維策略與圖像、歸納方法，促進字詞的深度理解與靈活運用；三、學生在識字、詞彙、流暢性及運算思維運用能力上均有進步，但在詞彙廣度及形近字應用方面仍需加強。

 

“Word decoding” involves three stages that are crucial in early elementary Chinese language learning: character recognition, vocabulary, and fluency. This study employed concentrated character instruction using radicals, combined with the computational thinking strategies of decomposition, logic, and patterns, to address students’ difficulties in a secondgrade classroom. Action research was conducted from February to June 2023 through two instructional cycles, using comprehensive data analysis to reflect on and revise the instructional approach progressively. The results showed that concentrated character instruction supports the development of reading comprehension and language skills by emphasizing component recognition and character formation rules. Additionally, integrating computational thinking strategies with visual aids and inductive methods enhances deep understanding and flexible word usage. Although students’ character recognition, vocabulary, fluency, and computational thinking were enhanced, further improvement is needed in vocabulary breadth and the application of similar-looking characters.

 
Comparing the predictive value of MSI, SI, ASI, and qSOFA with acid–base markers for septic shock morbidity and mortality
Authors: K.J. Devendra Prasad , K.C. Himabindu , D.G.S.R. Krishnamoorthy , K. Rajesh , N.T. Murali Mohan
Published: February 2025

Background: Septic shock remains a critical medical condition with significant morbidity and mortality rates worldwide. Early and accurate risk assessment is crucial for optimizing patient management and improving outcomes. Various clinical indices and biochemical markers have been proposed as predictive tools for assessing the severity of septic shock and its associated morbidity and mortality. The aim of the study was to compare the predictive validity of the MSI (modified shock index), SI (shock index), ASI (age shock index), and qSOFA (quick sequential organ failure assessment) score with metabolic acidosis, anion gap, base deficit, and lactate levels in the assessment of morbidity and mortality outcomes in adult patients diagnosed with septic shock.

Methods: A prospective observational study was conducted in a tertiary care hospital. This study included 264 patients who were diagnosed with sepsis. Ethical approval was obtained from the institutional ethical committee. A data collection sheet was used for collecting data, including both clinical and metabolic parameters. Receiver operating characteristic analysis was performed using coGuide REAP.

Results: The median age of participants was 60 years (IQR (interquantile range): 45–70 years). The predictive validity of metabolic parameters was higher in predicting “mortality” as indicated by the area under the curve (AUC) values (lactate: 0.816, base deficit: 0.816) compared with clinical parameters (ASI: 077, SI: 0.709). The predictive validity of clinical parameters was higher in predicting “morbidity” as indicated by AUC values (ASI: 0.761, MSI: 0.698) compared with metabolic parameters (base deficit: 0.728, anion gap: 0.611).

Conclusions: Predictive validity was higher for clinical parameters related to morbidity and higher for metabolic parameters related to mortality.
Microscale vertical distribution of meiofauna in a coral reef protection area in northeastern Brazil
Authors: Barroso Marina S , Araújo-Silva Catarina de L , da Silva Icaro PB , de Oliveira Bruna RS , Neres Patrícia F , Esteves André M , dos Santos Paulo JP
Published: February 2025

The study of community structure in microzones on reef walls is extremely relevant, since changes in coastal ecosystems, particularly due to predicted climate change scenarios and associated sea level rise events, can result in the reduction of natural populations and loss of biodiversity. Here, we present the first dataset highlighting meiofauna microzonation of Southwestern Atlantic tropical coral reefs. We studied the spatial distribution (i.e., vertical microzonation in tenths of a meter) of meiofauna taxa (e.g., copepods, nematodes) within a Marine Protected Area (MPA), along a coastal reef wall. We subdivided the reef into three microzones in the lower midlittoral, one in the Mean Low Water Springs zone (MLWS or Point 0.0 cm) and three microzones in the shallow infralittoral. A total of seven microzones were studied, organized at vertical differences of up to 30 cm between each pair (Midlittoral +60 cm, +50 cm and +20 cm; Point 0.0 cm; Infralittoral -15 cm, -30 cm and -40 cm) and related to the position of the tide level 0.0m (MLWS). We observed a decrease in abundance of meiofauna in the upper parts of the reef (i.e., Midlittoral +60 cm and +50 cm) relative to the densities found in the infralittoral microzone. Our study also indicates significant differences (p<0.0001) in meiofauna community structure composition when comparing the midlittoral to the infralittoral microzones. Differences in community structure also occurred between very close microzones (i.e.. 25 to 30 cm) within the midlittoral or the infralittoral microzones, indicating that the distribution of meiofaunal organisms varies over cm-level vertical scales within a complex reef habitat.
Structural design influences biological community composition on a North Carolina jetty
Authors: Oviatt Jared H , Jarvis Jessie C , Freshwater D Wilson
Published: February 2025

Marine urbanization creates novel benthic habitat in coastal areas around the world. This process includes the construction of artificial reefs, energy infrastructure, and jetties. These hard structures are colonized by epibenthic communities of macroalgae and sessile invertebrates. The factors influencing the composition of epibenthic communities must be understood to build structures that incorporate epibenthic organisms into their design through anthropogenic ecosystem engineering. An epibenthic community on the Masonboro Inlet jetty at Wrightsville Beach in coastal North Carolina, USA was surveyed biweekly from May to September 2022. Both sides of the jetty (aspect), at two depths (1.0m; 5.0m below MLLW) were surveyed providing four sites (north-shallow, south-shallow, north-deep, south-deep). The orientation of each surface photographed was recorded. Physical drivers of community structure (aspect, depth, and orientation) were compared to environmental drivers (light and temperature) recorded every 15 minutes for the duration of the sampling period. Overall, the effect of depth on community composition was greater than the effect of orientation, which was greater than the effect of aspect. Community appeared to better correlate with light than with temperature, though after accounting for structural effects and sample date, additional effects of light and temperature were minimal. Algal abundance was greater at shallow sites and on horizontal surfaces while invertebrate abundance was greater at deep sites and on vertical surfaces. We propose that these patterns and drivers of community composition observed have functional implications at the ecosystem level which may be considered during planning and design of new marine structures.
Life Story and Literary Interpretation. Atanas Dalchev’s Work in Literature Textbooks for Secondary Education
Authors: Stoyanova Nadezhda
Published: February 2025

The paper focuses on the complicated inclusion of Atanas Dalchev’s work in the list of studied authors in Bulgarian secondary education after 1944. Although he had the reputation of one of the most significant Bulgarian poets, his influence on the younger generations was defined as negative by the socialist realists. Dalchev’s poetic principles maintained the distance between “reality” and literary convention, between author and Lyrical Self, which, however, confronted the Socialist realists’ idea about the social character of literature. This was one of the reasons why the poet’s work was left out of the school canon until 1980s and on its turn provoked a number of critical strategies that aimed to rehabilitate the author by including his works in the literary-historical process and by legitimizing his aesthetic system. The main object of the paper is the reception of Atanas Dalchev during Socialism, but at the end some trends in the textbooks published after 1989 are also noted.
Pragmatic Strategies in Text. Alienation
Authors: Moskova Mihaela
Published: February 2025

It is well known that Bulgarian lacks coordination of tenses in complex sentences. This allows for various temporal combinations to be realized in the main and subordinate clauses. This is also the minimal necessary condition for implementing the pragmatic strategy of expressing the viewpoints of both the current speaker and the participant in the action being discussed, which R. Nitsolova calls empathy. The interesting aspect here is that when the two positions coincide, the current speaker can describe the event from the participant‘s perspective, with this difference usually having grammatical dimensions. R. Nitsolova notes that this is the preferred way of presenting the event. In this work, another possible pragmatic strategy is outlined, through which the speaker uses the available linguistic means to „remove“ the participant‘s position when they necessarily occupy it (when talking about themselves).
The impact of short-term contract on employee’s quality of work life in hospitality industry in Jordan
Authors: Alrousan Ahmad , Albdareen Rokaya , AlOqaily Ahmad Nader
Published: February 2025

There have been many changes in work around the world, which have led to economic changes and increased global competition due to the emergence of modern and advanced technology, as well as international competition due to globalization. Many organizations use short-term contracts due to the high costs in the business world, which have affected employees' wages. This study aimed to examine the effect of short-term contracts and six unique attributes on employees' Quality of Work Life: Compensation, Working Conditions, Growth and Development Opportunities, Work-Life Balance, Social Integration, and Constitutionalism within Jordan's hospitality sector. SEM of 375 participants highlights that STCs make a stronger contribution to enhancing QoWL via Compensation and Quality of Work Life, while other dimensions reflect a low positive impact. The research also emphasizes that employers cannot entice workers away from financial and work-life incentive options with growth, inclusiveness, and fairness alone; for a holistic experience of short-term employment, both elements are needed. These insights help to piece together the puzzle concerning short-term job trends and implications for developing strategies in the hope of better Quality of Work Life outcomes specific to labor-intensive industries such as hospitality.
Transformation of the musical education derivate from the COVID-19 pandemic: From traditional teaching to the use of virtual environments
Authors: Velazco-Reyes Benjamin , Palacios-Serna Lina Iris , Estrada-Araoz Edwin Gustavo , Velez-Jimenez Dolores , Cortez-Chavez Claudia Virginia
Published: February 2025

As a result of the COVID-19 pandemic, music universities in Peru have had to adapt to new ways of providing educational services. Consequently, teachers have transformed their practices to achieve virtual teaching by applying various technological resources. This research aims to analyze how music teachers transformed traditional teaching-learning processes to fit the new virtual environments derived from the restrictions due to COVID-19. The analysis is conducted within a qualitative approach using the phenomenological method, and the data collection involved twenty-one interviews with teachers from four public universities in Peru. The results indicate that teachers of theoretical courses easily adapted to the virtual environment, while those teaching practical courses faced challenges that could not be overcome. Regarding modifications to the methodology, there are divergent opinions; an important resource was home videos, as they can enhance student performance and enable objective evaluation by the teacher. Additionally, digital competence must be integrated into the study curricula for a comprehensive education of the student.
Stakeholder pressure and green innovation: Pathways to competitive advantage in Vietnamese manufacturing SMEs
Authors: Huong Dinh Thi , Nhung Nguyen Hong , Anh Nguyen Hong
Published: February 2025

This study investigates the impact of stakeholder pressure, green innovation (GI), sustainable performance (SP), and competitive advantage (CA), with a focus on AI’s moderating role between employee behavior and GI. A quantitative approach was applied, collecting multi-source data from 357 SMEs in the manufacturing sector. Structural Equation Modeling (SEM) with SmartPLS assessed variable relationships, while reliability and validity were confirmed using Cronbach’s alpha and AVE. Findings reveal that normative pressure (β = 0.308, p < 0.01) has the strongest influence on GI adoption, while supplier pressure (β = 0.083, p < 0.05) has the weakest. AI positively impacts GI (β = 0.190, p < 0.01) and moderates the effect of employee behavior on GI (β = 0.101, p < 0.01). Additionally, GI enhances SP and CA, with SP mediating the GI–CA relationship. This study contributes to the literature by highlighting AI’s role in driving GI and moderating employee behavior’s influence on GI. Practically, it underscores the need for SMEs to consider stakeholder pressure and strategically integrate AI to foster GI, enhance SP, and strengthen CA in a rapidly evolving business landscape.
In electronic environment of bridging green education and performance: The transformative role of augmented reality technology in sustainable environmental learning
Authors: Khrais Laith T
Published: February 2025

Investigating the role of augmented reality technology (ART) in mediating the relationship between students' academic performance and sustainable environmental knowledge practices is a key objective that, in addition to the effect of ART on self-perceived academic performance, is also examined. The purpose of this research was to bridge the electronic environment of green education and performance: the transformative role of augmented reality technology in sustainable environmental learning. The research method was applied-quantitative, with the statistical population consisting of students from three universities, of whom 60 were randomly selected for the research sample. The research tool was a researcher-made questionnaire that was completed using Survey Monkey, an online platform for preparing and responding to questionnaires. To analyze the collected data, descriptive statistics were used to prepare tables and graphs, and for inferential statistics, the regression statistical method was used to examine the relationship between variables, with SPSS software employed for data analysis. The results of the research showed that sustainable environmental knowledge has a negligible effect on students' self-perceived academic performance. The study indicated that AR technologies introduced in learning enhanced the relationship between sustainable environmental knowledge and self-perceived academic performance by significantly improving critical thinking among students, as well as enhancing attention, mediating, and improving memory and comprehension. Meanwhile, a crucial recommendation for future research is that qualitative data through interviews should be collected to identify specific applications that can be incorporated into AR to enhance students' learning experiences, and that incorporating augmented reality technologies in higher education institutions can increase students' attention and improve their self-efficacy.
Unlocking potential: Enhancing science learning through workbook integration
Authors: Co Annalene Grace E
Published: February 2025

This study investigated the effectiveness of using workbooks as supplementary instructional materials to enhance science learning among college students. A quasi-experimental pretest-posttest design was employed with two groups: an experimental group using traditional teaching methods supplemented with workbooks, and a control group receiving traditional instruction only. Data were collected from 68 freshmen students at a state university, including pre-test and post-test scores and academic performance (semi-quarterly and quarterly grades). Paired-samples t-tests and independent samples t-tests were conducted to analyze the data. The results demonstrated significantly higher post-test scores and improved academic performance in the experimental group compared to the control group. Effect size analyses indicated moderate to high practical significance for the use of workbooks in enhancing student learning. The study concludes that integrating workbooks into traditional teaching methods significantly enhances student learning outcomes in science. These findings underscore the importance of utilizing effective instructional materials. The study recommends that educational institutions prioritize the use of workbooks, ensure their effective utilization by teachers, and promote the development and evaluation of high-quality workbooks across various disciplines.
Impact of accounting information system quality on investment level and efficiency: An empirical analysis in Vietnam
Authors: Vo Thi Thu Ha , Tran Ngoc Hung , Hoang Thanh Hien
Published: February 2025

This study examines the influence of accounting information system (AIS) quality on the investment level and efficiency of publicly listed companies in Vietnam, employing SmartPLS software for data analysis. The quality of AIS is conceptualized through key dimensions, including reliability, timeliness, and relevance of financial data, which are essential for facilitating informed decision-making processes. The research utilizes structural equation modeling (SEM) to analyze data from economic reports and surveys conducted with key stakeholders in Vietnamese public companies. Results indicate that implementing high-quality Accounting Information Systems (AIS) significantly enhances investment efficiency by delivering accurate and timely information, facilitating improved capital allocation and risk assessment processes. Moreover, the study identifies that reliable AIS promotes transparency, bolsters investor confidence, and expands access to external financing. The findings underscore notable associations between AIS quality and compliance with regulatory standards, emphasizing its critical role in mitigating information asymmetry and reducing agency costs. Employing SmartPLS for analysis, the research provides compelling evidence of the mediating effects of AIS on organizational performance and investment outcomes. This study underscores the strategic imperative of developing robust AIS to optimize financial resource management and foster sustainable growth, particularly in emerging markets such as Vietnam.
Application of Wearable Devices in Diabetes Management
Authors: Du Zijing , Zhang Feifan , Ge Yifei , Liu Yijiang , Yu Honghua , Wang Yong , Dalan Rinkoo , Shen Xiaotao
Published: February 2025

Review
Application of Wearable Devices in Diabetes Management

Zijing Du 1,2,†, Feifan Zhang 1,†, Yifei Ge 1, Yijiang Liu 3, Honghua Yu 2, Yong Wang 4, Rinkoo Dalan 1,5, and Xiaotao Shen 1,3,*

1 Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 636921, Singapore
2 Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
3 School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 639798, Singapore
4 College of Computing and Data Science, Nanyang Technological University, Singapore, 637616, Singapore
5 Department of Endocrinology, Tan Tock Seng Hospital, Singapore, 308433, Singapore
* Correspondence: xiaotao.shen@ntu.edu.sg
† These authors contributed equally to this work.

Received: 17 December 2024; Revised: 20 January 2025; Accepted: 12 February 2025; Published: 19 February 2025

Abstract: Diabetes mellitus poses a significant global health challenge, impacting hundreds of millions worldwide. Effective management and prevention of complications rely on dynamic, real-time glucose monitoring. This review provides a comprehensive overview of the rapidly evolving landscape of wearable technologies for glucose monitoring and diabetes care, with a focus on cutting-edge advancements and their integration with artificial intelligence (AI) and multi-omics data. We explore diverse glucose monitoring approaches, including continuous glucose monitors (CGMs) and smartwatches, highlighting their contributions to tracking physical activity, food intake, medication adherence, and direct glucose measurements. Our emphasis is placed on the role of AI systems in enabling predictive analytics and personalized care, as well as the integration of wearable data with multi-omics insights—spanning genomics, proteomics, and gut microbiome analyses—to enhance understanding of individual glucose metabolism. Given the challenges of existing methods, such as invasiveness, accuracy, and accessibility, we discuss future directions, including the potential of smart glasses, advanced AI models, and seamless data integration, to revolutionize diabetes management. This review offers valuable insights into how wearable technologies, AI, and multi-source data analysis are shaping the future of precision diabetes care.
Intrinsically Multi-Color Device Based on Dynamic Cooperation of Molecular Switches and Metal Ions
Authors: Li Min , Wang Shuo , Shen Ruipeng , Xie Yigui , Zhang Yu-Mo , Zhang Sean Xiao-An
Published: February 2025

Article
Intrinsically Multi-Color Device Based on Dynamic Cooperation of Molecular Switches and Metal Ions

Min Li, Shuo Wang*, Ruipeng Shen, Yigui Xie, Yu-Mo Zhang and Sean Xiao-An Zhang*

State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
*Address correspondence to: wangshuo@jlu.edu.cn and seanzhang@jlu.edu.cn
Received: 6 January 2025; Revised: 5 January 2025; Accepted: 11 February 2025; Published: 19 February 2025

Abstract: Multi-color electrochromic material is a long-expected and extremely challenging material, which is important for electrochromic technology to be applied in adaptive camouflage, augmented reality, transparent display, etc. Here, an intrinsically multi-color indirect-electrochromic material based on supramolecular interactions of unusual multi-state molecular switch and metal ion was developed, combining the advantage of multi-state of molecular switch and chemical stability of metal ion. Related prototype device, with transparent intrinsic colorless, magenta, cyan and various mixed colors, have been explored and demonstrated. The mechanism was based on the dynamic coordination of multiple metal ions and single-molecular-dual-switches within fragile supramolecular clusters. Wherein, the color and lightness could be controlled simply by the bias applied, with abilities such as transmittance change (41%), coloring time (7.8 s), coloration efficiency (>100 cm2/C), and reversibility (>600 test cycles, no abnormal changes). The prototype device was fabricated to show the potential to be used in low energy consumption display.
Fracture resistance and failure modes of endodontically-treated permanent teeth restored with Ribbond posts vs other post systems: a systematic review and meta-analysis of in vitro studies
Authors: Vartak Meghana Aditya , Hegde Vibha Rahul , Hegde Sanitra Rahul , Fanibunda Ushaina
Published: February 2025

Objectives: This systematic review aimed to investigate the fracture resistance and mode of failure of endodontically-treated permanent teeth restored with Ribbond posts (Ribbond, Inc.) compared with endodontically-treated permanent teeth restored with other post systems.Methods: A comprehensive, systematic literature search was carried out using several electronic databases: MEDLINE/PubMed, Google Scholar, and Cochrane Library. Two separate researchers were appointed to identify the studies meeting the eligibility criteria, and to perform the data extraction, risk of bias, and quality assessment.Results: Twelve studies were included in the quantitative analysis. Meta-analysis was performed with 11 of the 12 included articles. The meta-analysis showed that Ribbond posts have a fracture strength less than prefabricated metal posts, cast metal posts, and prefabricated fiber posts and greater than custom e-glass fiber posts. Mode of failure analysis revealed that Ribbond posts have the most favorable non-catastrophic fractures.Conclusions: Although Ribbond posts have lower fracture resistance, their favorable mode of failure makes them potentially the most biomimetic post system.
Relações entre rede urbana, serviços de saúde e a disseminação de covid-19 na Região Geográfica Imediata de Barreirinhas, Maranhão, Brasil
Authors: Silva Daniely Lima , Oliveira Allison Bezerra , Mota Helton Zheus Azevedo , Cardoso Vitória Ferreira , Santos Ricardo Felipe dos , Santos Pedro Henrique Araújo
Published: February 2025

Este trabalho tem como objetivo compreender a espacialização da covid-19 na rede urbana da Região Geográfica Imediata de Barreirinhas (REGIB), Maranhão, Brasil. O recorte temporal abrange o primeiro ano de pandemia, de 20 de março de 2020 a 20 de março de 2021, a partir do registro do primeiro caso no estado do Maranhão. Considera a distribuição de serviços e fixos médico-hospitalares na REGIB e a espacialização da doença dentro do contexto de hierarquização urbana. Utiliza dados do Instituto Brasileiro de Geografia e Estatística, da Secretaria de Saúde do Estado do Maranhão e do Departamento de Informática do Sistema Único de Saúde. A análise dos dados indica rarefação e concentração da oferta de serviços médicos e de saúde entre os municípios que compõem a REGIB, fenômeno que impulsiona o fluxo de pessoas em direção ao centro polarizador regional em busca de atendimento médico. Esse movimento reproduz aspectos da hierarquia urbano-regional, culminando no aumento das infecções pelo vírus e, consequentemente, no elevado número de óbitos na região.
Application of Medium Phase Microemulsion Theory in Enhanced Oil
Authors: Lyu Chen , Shu Xingyi , Yi Jiaqi
Published: February 2025

With the continuous growth of global petroleum resource demand, traditional oil recovery technology is confronted with the challenge of low recovery efficiency in reservoirs characterized by low permeability, low porosity, and high salinity. Therefore, there is an urgent need for more efficient improved oil recovery (EOR) technologies. In the past few years, microemulsion has attracted considerable interest in the petroleum industry as an effective oil displacement agent owing to its remarkable capacity to diminish the interfacial tension that exists between oil and water. Particularly, medium phase microemulsion has emerged as an essential instrument for enhancing oil recovery techniques during extraction processes. This paper systematically discusses the formation mechanism, physical and chemical properties of medium phase microemulsion, as well as its application in EOR. The adaptability and displacement efficiency of microemulsions in complex oil reservoirs are elucidated through analyzing their formation mechanisms such as interfacial adsorption film theory and interfacial tension theory. Additionally, this study explores the impact of environmental variables including temperature, salinity, and pH value on the phase behavior of microemulsions while discussing methods to enhance their stability using nano-composite materials and polymer surfactants. Although challenges exist in field applications such as formula matching and environmental impact associated with medium phase microemulsion technology; however, future integration with intelligent oil displacement technologies offers promising prospects for its development.
Research on the remediation of heavy metal contaminated soil by biochar
Authors: Zhang Xinyue
Published: February 2025

This paper systematically reviews the application research of biochar in the remediation of heavy metal contaminated soil. As a porous solid granular material rich in carbon, biochar shows excellent heavy metal adsorption capacity and potential for soil remediation. This paper introduces in detail the preparation methods of biochar, including pyrolysis, hydrothermal carbonization, etc., and its application principle in soil heavy metal remediation, focusing on the analysis of the mechanism by which biochar reduces the mobility and bioavailability of pollutants by adsorbing and fixing heavy metals and improving soil properties. This paper also discusses the classification of biochar from different raw material sources and its diversified applications in agriculture and environmental protection. In general, biochar has broad application prospects in the field of environmental remediation and is one of the important green technologies to solve the problem of heavy metal pollution in soil.
Research and Application of Silane Coupling Agents on Metal Oxide Nanoparticles Surfaces
Authors: Huang Jiajun
Published: February 2025

Metal oxide nanoparticles (MONPs) have garnered significant attention due to their unique nanoscale properties, such as the small size effect, quantum size effect, and photocatalytic activity. These nanoparticles are widely applied in fields such as catalysis, environmental management, energy storage, and antimicrobial materials. However, unmodified MONPs often face challenges related to high surface energy, aggregation, and instability. To address these issues, silane coupling agents (SCAs) have been employed to modify MONPs, enhancing their stability, mechanical properties, and hydrophobicity. This paper examines the modification mechanisms of MONPs using SCAs, focusing on the structure and functionality of common agents such as APTES, GPTMS, and MPS. The advantages of these modified MONPs in various applications are explored, including their role in creating superhydrophobic surfaces, improving photocatalytic performance, and forming antimicrobial and self-cleaning composite materials. Despite the promising benefits, challenges in scaling up production, improving efficiency, and developing environmentally friendly silane agents remain. Future research should focus on addressing these limitations to fully realize the potential of SCA-modified MONPs in industrial and environmental applications.
Organizzare il tempo. Fasti e calendari a Roma e nell’Italia romana
Authors: Russo Federico , Segenni Simonetta , Letta Cesare ,   Università di Pisa, Bellomo Michele ,   Università degli Studi di Milano, Marengo Silvia M. ,   Università degli Studi di Macerata, Biondi Laura ,   Università degli Studi di Milano, Antolini Simona ,   Università degli Studi di Macerata, Romani Silvia ,   Università degli Studi di Milano
Published: February 2025

Nel mondo romano, il calendario scandiva i ritmi di una comunità e definiva su base quotidiana i momenti adatti per ciascuna attività, pubblica e privata. Nell’organizzazione dell’anno civico a Roma come nelle comunità locali dell’Italia romana, l’entrata in carica dei magistrati segnava la data d’inizio del nuovo anno e determinava così la sequenza delle occasioni pubbliche e private (in particolar modo di natura religiosa) che si sarebbero celebrate poi durante i dodici mesi successivi e che avrebbero segnato il susseguirsi delle stagioni. Gli studi raccolti in questo volume affrontano, da prospettive diverse e con approccio interdisciplinare, alcuni dei molteplici problemi posti dal calendario romano, affrontando temi come quello relativo alla data, sempre oscillante, dell’inizio dell’anno civico, o alla ricezione, a livello locale, di feste e riti celebrati nella città di Roma, o ancora soffermandosi su alcuni aspetti e rituali delle festività celebrate nel corso dell’anno e sulla loro declinazione letteraria. Si mostrerà in definitiva come l’organizzazione condivisa del tempo rappresentasse un aspetto imprescindibile della vita religiosa e della vita civica di una città.
C.D. 41.51.7-8 alla luce dei fasti Privernates. Nota sui magistri equitum di Cesare dittatore perpetuo
Authors:   Università di Pisa, Letta Cesare
Published: February 2025

Il passo di Dione (43.5.6-8) sui magistri equitum designati da Cesare dittatore perpetuo sarebbe pienamente compatibile con le nuove informazioni fornite dai Fasti Privernates se, secondo un uso linguistico ampiamente documentato in Dione, si corregge il tràdito ἄλλον τέ τινα καὶ τὸν Ὀκτάουιον in ἄλλο<υς> τέ τινα<ς> καὶ τὸν Ὀκτάουιον. Al § 7, dunque, Dione non parlerebbe di due soli magistri equitum annuali per un periodo di tre o quattro anni, ma genericamente di un numero imprecisato di magistri, tra i quali, oltre a Ottavio e agli altri magistri annuali non nominati, deve considerarsi compreso anche il magister equitum perpetuo Lepido. Dione, però, secondo la sua abitudine, giudica irrilevante elencarli coi loro nomi e si limita a segnalare che tra loro c’era anche il futuro Augusto. Probabilmente ci tiene a farlo proprio perché sa che la sua designazione non fu formalizzata e quindi non fu registrata nei Fasti.
Tra gennaio e luglio: riflessioni sul primo giorno dell’anno civico nelle città dell’impero romano
Authors:   Università degli Studi di Milano, Russo Federico
Published: February 2025

Il contributo intende analizzare, tramite lo studio della documentazione epigrafica, il problema della data di inizio dell’anno civico nelle comunità dell’Italia romana alla luce degli usi vigenti a Roma tra età repubblicana e età imperiale. Si mostrerà anche come, in taluni casi, l’inizio dell’anno civico fosse svincolato dalle regole adottate dalle comunità romane, a favore piuttosto di usi tipicamente locali.
Maium Romulus tertium posuit, de cuius nomine inter auctores lata dissensio est (Macr. Sat. I, 12.16). Qualche considerazione (ancora) sul nome del mese di maggio
Authors:   Università degli Studi di Milano, Biondi Laura
Published: February 2025

Il contributo ripercorre le diverse tradizioni eziologiche riferite a Maius come nome del mese e alla funzione e al significato che riveste nel calendario romano. Li considera anche alla luce di un dato linguistico recente: due epigrafi dal santuario falisco di Monte Li Santi - Le Rote documentano il culto di Fortuna e Minerva maia nel III sec. a.C. e il rapporto che queste divinità hanno con la sfera femminile e il passaggio all’età adulta, al matrimonio e alla procreazione. A Narce, maia è probabile epiclesi di Minerva da interpretare come *mag-i̯ā «‘die Große, Alte, die Mutter’» in funzione del proprio ruolo e può offrire un dato coerente - nel contesto della romanizzazione dell’ager Faliscus - con le fonti antiche che spiegano Maius come mese dei senes, maiores natu rispetto agli iuvenes associati a Iunius nel calendario romuleo.
Frequency of Factors Leading To Intrapartum Perineal Tears in Primigravida
Authors: Rukh Mah , Farhad Umaiyma , Khan Sadia , Shafiq Sanam , Faiz Sidra , Khan Saira
Published: February 2025

Intrapartum perineal tears are common complications during childbirth, particularly in primigravida women. Several factors, including episiotomy, vacuum-assisted delivery, and fetal macrosomia, influence the occurrence of these tears. This study aimed to evaluate the frequency and associated factors leading to intrapartum perineal tears in primigravida women in a hospital setting in Peshawar, Pakistan. Objective: To evaluate the frequency and associated factors leading to intrapartum perineal tears in primigravida women in a hospital setting in Peshawar, Pakistan Methods: This cross-sectional study was conducted at the Department of Obstetrics and Gynaecology, Hayatabad Medical Complex, Peshawar, from 15th January 2021 to 15th July 2021. A total of 123 primigravida women with singleton pregnancies were included in the study. The sample size was calculated using the WHO sample size calculator with a 95% confidence interval and a 7% margin of error. Participants were selected using non-probability consecutive sampling. Demographic data and information on episiotomy, vacuum delivery, and macrosomia were collected through a structured proforma. Data were analyzed using SPSS version 22, and descriptive statistics and chi-square tests were used to identify associations. Results: The mean age of participants was 27.1 ± 2.45 years, with a mean gestational age of 38.6 ± 1.28 weeks and a mean weight of 68.5 ± 5.97 kg. Episiotomy was performed in 21.1% of cases, vacuum delivery in 29.3%, and macrosomia was observed in 32.5% of the participants. Stratification of episiotomy, vacuum delivery, and macrosomia by age, gestational age, and weight revealed no significant associations (p-value >0.05). The episiotomy rate was higher in women weighing ≤70 kg (24.7%) and those aged 18–30 years (23.7%). Vacuum delivery was more common in younger women (29.7%) and in those weighing >70 kg (36.7%). Conclusion: Episiotomy, vacuum delivery, and macrosomia were identified as key factors associated with intrapartum perineal tears in primigravida women. The findings suggest that variations in obstetric practices, maternal weight, and fetal characteristics play a significant role in the incidence of perineal tears. Further studies are needed to standardize practices such as episiotomy and vacuum extraction and to assess their impact on perineal trauma in diverse populations.
RESENHA DO LIVRO "REINVENTANDO O CAPITALISMO DE ESTADO. O LEVIATÃ NOS NEGÓCIOS: BRASIL E OUTROS PAÍSES"
Authors: Santos Leandro Bruno
Published: February 2025

Este livro, publicado originalmente em inglês em 2014 [Reinventing State Capitalism Leviathan in Business, Brazil and Beyond], foi lançado no Brasil um ano depois da versão estadunidense. Aldo Musacchio é professor associado da Brandeis International Business Schools, onde pesquisa o apoio estatal à competição empresarial nos mercados local e externo, a estratégia de criação de campeões nacionais, o papel do Estado por meio de empresas públicas e fundos soberanos, entre outros. Sérgio Lazzarini é professor titular do Insper e seus temas de pesquisa versam sobre estratégias empresariais em mercados emergentes e relações entre empresas privadas e setor público. Sérgio Lazzarini é autor de outro livro, “Capitalismo de laços: os donos do Brasil e suas conexões”, editado pela Elsevier.
Tempos e lugares de Batuque: manifestações em uma cidade do interior paulista
Authors: Silva Elisabete de Fatima Farias , Faria Monique Marques
Published: February 2025

Em Rio Claro/SP, Tambu e Congada são manifestações do Batuque que expressam valores de um com-viver pelos tambores, a partir da matriz africana diaspórica em acordos e tensões com outras racionalidades. Historicamente, a realização dos encontros de Batuque passou por diferentes processos, demarcando tempos-lugares-corpos. Entre os “Batuques de antigamente” e os “Batuques de agora”, investiga-se pelos relatos orais:  Quais os lugares permitidos/proibidos aos corpos-batuqueiros e que estratégias são realizadas, no plano do urbano, para esconder, esquecer e deslocar tais corpos e, por outro lado, quais são as respostas de r-existência a isso? Compreender esses processos consiste em registrar e pensar a geograficidade das relações estabelecidas entres os sujeitos e lugares que perfazem e existem na manifestação do fenômeno e, assim, produzir uma Geografia que se preocupe com a realidade latino-americana voltada ao cotidiano e aos mundos de sentidos que se situam na encruzilhada de matrizes, tempos, lugares e corpos.
PRÁTICAS SUSTENTÁVEIS PROMOVIDAS PELOS HOTÉIS DE UBERLÂNDIA (MG)
Authors: Santos Giovana Natalie Carvalho , Bernardes Maria Beatriz Junqueira
Published: February 2025

O principal objetivo desse estudo foi compreender as práticas ambientais desenvolvidas pelos hotéis de Uberlândia (MG) sob a ótica dos gestores desses estabelecimentos. No intuito de defender o equilíbrio ambiental e a qualidade de vida, esta pesquisa se propõe a apresentar como a Gestão Ambiental pode contribuir frente às possíveis dificuldades enfrentadas pelos hotéis para implantação de processos sustentáveis. O estudo constitui-se de pesquisa exploratória, essencial para proporcionar maior familiaridade com o tema, assim como uma abordagem qualitativa, necessária para identificação e análise das ações de preservação ambiental promovidas nos estabelecimentos hoteleiros, proporcionada por meio da realização de entrevista junto aos gestores dos hotéis. Constatou-se com a presente pesquisa que as práticas ambientais desenvolvidas nos estabelecimentos de hospedagem da cidade são ainda muito incipientes e pontuais. As ações são promovidas de forma desarticulada, sem efetivo planejamento, monitoramento e controle de todo o processo.
SABERES E CONHECIMENTOS DOCENTES: olhares sobre o Conhecimento Pedagógico do Conteúdo do professor de Geografia
Authors: Pereira Valéria Rodrigues , Lopes Claudivan Sanches
Published: February 2025

O presente artigo refere-se ao projeto de pesquisa “Os saberes dos professores de Geografia” desenvolvido na Universidade Federal de Mato Grosso Sul, Campus de Três Lagoas, com finalidade de conhecer o repertório de saberes mobilizados por professores de geografia. A investigação foi realizada com profissionais de ensino, egressos do curso de Geografia desta universidade e em exercício em escolas públicas. Sob a perspectiva geográfica, abordamos as pesquisas relacionadas ao saber docente e destacamos, por meio de Shulman (2014), a Base de Conhecimentos e o Conhecimento Pedagógico do Conteúdo-CPC, entendido como a maneira especial em que os professores dentro de seus campos de conhecimentos transformaram o conteúdo para ensinar. Os resultados alcançados confirmaram a existência de fontes de conhecimentos que sustentam a atuação dos professores, possibilitando compreensão dos conteúdos, orientação nas escolhas didáticas, encaminhamento de discussões, desenvolvimento da aula e de atividades com alunos, entre outras questões pertinentes ao ensino. Palavras-chave: saber docente; conhecimento pedagógico do conteúdo; base de conhecimentos