bluuebunny/crossref_metadata_2025 huggingface dataset:
Open Access Institutional Repository in the Digital Era: Preventing or Increasing Plagiarism?
Authors: Puspita Dela , Roisah Kholis , Lestari Sartika Nanda
Published: September 2024

The open access controversy related to the increased risk of plagiarism of scientific works at institutional repositories is the primary motivation for this research, with the aim of the study being to understand and analyze the phenomenon of open access at institutional repositories copyright infringement. This research uses a normative juridical approach or doctrinal legal research method. Implementing an open-access institutional repository system policy basically cannot eliminate the practice of plagiarism in writing scientific works in the world of education. Still, the open-access institutional repository movement can improve the ability of the general public to assess, review, differentiate, compare, and refer to scientific works. Universities in various countries implement diverse strategies to prevent plagiarism in open access institutional repositories (OAIR), such as use of plagiarism detection software, strict police and guidelines, training and education, review and evaluation process, enforcement of rules and sanctions. These approaches aim to uphold academic integrity and ensure that all publications in open repositories meet high global standards.
Hegel Versus Hobbes: İnsanın Varkalımsal Aracı Olarak Savaş
Authors: Rızvanoğlu Eren
Published: September 2024

Bu makale, birbirinden farklı felsefi yaklaşımlar içerisinde yer alan Hobbes ile Hegel’in savaş üzerine düşüncelerini karşılaştırmalı olarak ele almaktadır. Söz konusu her iki filozofun ortak yanı, mutlak bir otoritenin yokluğunda savaşın nasıl ele alınacağına dair farklı yaklaşımlarda bulunmuş olmalarıdır. Siyaset felsefesi açısından da son derece önemli olan bu konu, modern siyaset anlayışının temellerini inşa etmede merkezi bir rol oynamıştır. Bu açıdan bakıldığında Hobbes, savaşı, herkesin herkese karşı çatışması olarak ele almakta ve savaşı değil, barışı istisna bir hâl olarak değerlendirmektir. Hobbes’a göre savaş, insanların doğa durumunda yaşadıkları belirsizlik ve güvensizlik halinin bir sonucudur. Hegel ise savaşı, tarihsel bir zorunlulukla ortaya çıkan ve ortaya çıktığı dönemdeki koşulların yozluğunu bertaraf eden bir olgu olarak ele almaktadır. Makalede, Hobbes’un savaş durumu ile Hegel’in efendi köle diyalekti arasında bir paralellik olduğu ve görünürde savaşı farklı nedenlere dayandıran her iki filozofun, aslında savaşın neliğine dair açıklamalarının ortak iki ayrı nedenden kaynaklandığı hususu vurgulanmıştır. Bu nedenlerden biri, temelde insanın kendi varlığını geleceğe dönük olarak her daim sakınması olarak ele aldığımız insanın varkalma talebiyken diğer neden ise bu taleple bağlantılı olarak görünür olan başkasınca tanınma ve onanma arzusudur.
Gendered Barriers to Accessing Jobs in the Formal Sector: A Study of Women Street Vendors in Delhi, India
Authors: Sharma Shweta
Published: September 2024

Occupational segregation by gender deserves particular attention because it excludes women from most livelihood options (Anker, 1997). This research presents a holistic picture of gendered occupational segregation that collectively studies life cycle concepts of transitions, trajectories, life events, and turning points, along with the life cycle parameters of age, education level and marital status to understand barriers women face in exercising their agency to access jobs in the formal sector. Analysis of 105 semi-structured interviews with vendors in Delhi highlights the role of patriarchal norms in public and private spheres in structuring women’s entry into street vending. Key issues to access jobs in the formal sector include the patriarchal norms, stigmatisation, and societal expectations that limit women’s access to education, their ability to work, and the type of work they engage in, thus creating segmentation in the labour market. This study concludes that the structural conditions lead to transitions, life events, and turning points in women’s lives, determining their access to employment in the formal or informal sector.
Medical Device Database: Scoping Lifecycle Review
Authors: Jeon Seongwoo , Yang Hee-Soo , Park Chan Young , Kim So-Young , Park Jong-Hyock
Published: September 2024

Objectives: This study examines the utilization and lifecycle management of medical device databases in multiple regions including the United States, Europe, Japan, and Canada, and evaluates their public health impact. The objective is to identify best practices, gaps, and challenges in the current systems to inform future improvements and standardization efforts on a global scale.Methods: A comprehensive comparative analysis was conducted on databases in these regions. The analysis focused on the structure, operation, and application of these databases in lifecycle management. Key factors include data collection, integration, utilization throughout the product lifecycle, data accessibility, user interfaces, integration with other healthcare data, regulatory compliance, and public health impacts. Data were collected through literature reviews, policy documents, and expert interviews to provide a robust understanding of each system.Results: Results show reveal significant variations in how regions utilize medical device databases to enhance device safety and efficacy. While all regions aim to improve device safety and public health outcomes, there are notable differences in data accessibility, usage, and management practices. Comprehensive coverage of the medical device lifecycle from pre-market approval to post-market surveillance varies significantly. Integration with regulatory processes and support for public health interventions through detailed tracking and reporting mechanisms also differ widely. Data accessibility and integration with national databases remain challenging. Inconsistent data formats, varying levels of data granularity, and differences in regulatory requirements hinder effective global monitoring and comparison. Despite these challenges, the study highlights the potential for medical device databases to significantly enhance healthcare quality and patient safety.Conclusions: National medical device databases are crucial for improving healthcare quality and safety. They serve as vital tools for identifying issues and informing policy-making. Korea should consider developing a comprehensive database focused on user health protection and safety enhancement, aligned with global standards.
Mediating Effect of State Anxiety and Interpersonal Relationship on the Relationship between Self-forgiveness and Happiness in Nursing Students
Authors: Kim Su Jin
Published: September 2024

Objectives: The purpose of this study was to examine the mediating effects of state anxiety and interpersonal relationship on the relationship between self-forgiveness and happiness of nursing students.Methods: This study used The Korean version of the State Self-forgiveness Scale, State Anxiety Inventory, Relationship Change Scale, and The Oxford Happiness Questionnaire. The data was analyzed by using frequency, percentage, mean, standard deviation, t-test, one-way ANOVA, and Pearson’s correlation coefficient. Baron and Kenny’s method was used to analyze mediating effect between self-forgiveness and happiness.Results: Self-forgiveness, happiness, state anxiety, and interpersonal relationship had correlation with each other. There were the mediating effects of state anxiety and interpersonal relationship on the relationship between self-forgiveness and happiness of respondents.Conclusions: The result showed the mediating effects of state anxiety and interpersonal relationship on the relationship between self-forgiveness and happiness of nursing students. To increase happiness, it is necessary to apply curriculum to reduce state anxiety and improve interpersonal relationship.
User Interface Design and Usability Evaluation of a Mental Health Mobile Application for Healthcare Workers: A Nursing Informatics Perspective
Authors: Lee Yewon , Kwak Eunju , Park Mijin , Park Jiyeon , Kim Jungjae , Lee Jisan
Published: September 2024

Objectives: The critical need for accessible mental health support for healthcare workers during pandemics underscores the importance of tailored interventions. This study aimed to derive user interface (UI) design elements and evaluate the usability of a mobile mental health application specifically crafted for healthcare professionals, focusing on nursing informatics.Methods: The mental healing app (mHealing app) interfaces were developed, emphasizing UI design elements derived from user requirements and guided by principles of nursing informatics. Usability was assessed using the Health Information Technology Usability Evaluation Scale (Health-ITUES).Results: Six nurses, including one specializing in nursing informatics, participated in both UI design derivation and usability pilot test, providing valuable insights from a nursing informatics perspective. The mHealing app offers personalized content delivery and facilitates connections to counselors based on users’ mental health states, supported by a self-diagnosis tool. The UI design prioritizes user-centered features and intuitive navigation, addressing healthcare workers’ unique challenges during pandemics. In the usability pilot test, the app scored high in impact, perceived usefulness, and ease of use, according to Health-ITUES.Conclusions: The mHealing app, developed with a focus on UI design elements informed by nursing informatics principles, effectively addresses the mental health care needs of healthcare workers during pandemics, particularly COVID-19. Engaging six nurses in usability pilot test, including one specializing in nursing informatics, the app demonstrates a user-centered approach and intuitive UI, promising a meaningful impact in clinical settings.
Characteristics of the Factors of Associated with Death in Older Adults due to Dementia: Focusing on the Chungbuk Region
Authors: Lee Hyunju
Published: September 2024

Objectives: The purpose of this study is to analyze the characteristics of the factors associated with death due to dementia among the older adults in Chungbuk.Methods: A total of 1,685 the older adults aged 65 years or older who died of dementia in Chungbuk were selected as subjects for the study using raw data on the causes of death for the last five years (2018-2022) from Statistics Korea. Statistical analysis was conducted using frequency analysis and multinomial logistic regression analysis.Results: The mortality rate of dementia among the older adults aged 65 and older in Chungbuk was 3.5%, lower than the national average. There were 147 female deaths per 100,000 population, more than 87 male deaths, and by age, 1,367 were in their 90s and older, 269 were in their 80s, and 22 were in their 70s and younger (65-79). The place of death was 68.5% in medical institutions and 22.4% in social welfare facilities. Alzheimer’s disease was the most common type of dementia causing death (67.0%). The highest number of older adults with dementia died in November, and the lowest in August and September. The highest number of dementia deaths occurred on the 19th, and the lowest on the 29th and 31st, with a difference of 29 deaths. The highest number of deaths occurred at 8:00 a.m. with 102 deaths and the lowest at 2:00 a.m. with 47 deaths. Female gender and type of dementia were significantly associated with dementia death among those aged 70 and younger compared to those aged 90 and older, and female gender and place of death in a medical institution were associated with dementia death among those aged 80 and older.Conclusions: Based on this study, it is recommended to establish a policy to promote mental health in Chungbuk.
Распространение вариантов вируса SARS-COV-2, вызывающих интерес (VOI) и находящихся под наблюдением (VUM), на основе количества их геномов, депонированных в базу данных GISAID за неделю с 31 августа по 06 сентября 2024 г.
Authors: Чумачкова Елена , Дмитриева Людмила , Краснов Ярослав , Осина Наталия , Зимирова Анастасия , Иванова Александра , Карнаухов Игорь , Караваева Татьяна , Щербакова Светлана , Кутырев Владимир
Published: September 2024

В обзоре представлена информация по циркулирующим в настоящее время вариантам вируса SARS-COV-2 Omicron вызывающих интерес (VOI) и находящихся под наблюдением (VUM), геномные последовательности которых размещены в международной базе данных GISAID за неделю с 31 августа по 06 сентября 2024 г.
AUGMENTED REALITY REVOLUTIONIZING LANGUAGE SERVICES: AN IN-DEPTH EXPLORATION
Authors: Bezzaoucha Ilhem
Published: September 2024

The rapid evolution of technology is reshaping the landscape of interpreting, with augmented reality(AR) emerging as a potent force driving transformative changes. This paper meticulously exploresthe profound implications of AR on interpreting practices, aiming to elucidate its transformativepotential and influence on the future trajectory of the profession. Through an exhaustive examinationof AR technology, current interpreting trends, and envisioned applications of AR in languageservices, this paper offers a comprehensive understanding of its impact on the interpreting domain.AR represents a paradigm shift in interpreting practices, offering unprecedented opportunities forlanguage professionals to enhance communication and comprehension in multilingual contexts.Unlike virtual reality (VR), which immerses users in entirely synthetic environments, AR overlaysdigital information onto the physical world, thereby enriching real-world experiences. This papercritically examines current interpreting trends, including the integration of AR into interpretationworkflows, and delves into ethical considerations arising from the use of AR in interpreting. Byaddressing issues related to privacy, accuracy, and the impact on human interpreters' roles, this paperemphasizes the importance of responsible and ethical use of technology in language services.
ANALYSIS OF CULTURAL INTELLIGENCE (CQ) IN THE UNITED ARAB EMIRATES ECONOMIC DIPLOMACY
Authors: Fauzi Muhammad , Rahayu Dini Septyana
Published: September 2024

This research focuses on using the concept of Cultural Intelligence (CQ) as an analytical lens to identify the economic diplomacy strategy of the United Arab Emirates (UAE). The research method applied is a descriptive qualitative method with data collection techniques involving various sources, including reports, journals, news, and literature related to this topic. Cultural Intelligence is applied through four main dimensions: Motivational CQ, Cognitive CQ, Metacognitive CQ, and Behavioral CQ. This research explores how the UAE, as a multicultural country, utilizes cultural intelligence to shape and implement strategies in its economic diplomacy. The results show that Cultural Intelligence (CQ) is able to act as a lens that enables the identification of a country's economic diplomacy strategy. The high Motivational CQ is reflected in the UAE's enthusiasm to adapt to a dynamic economic environment. Cognitive CQ is applied in managing a positive image and reducing negative stereotypes, increasing attractiveness for expatriates and international economic actors. Meanwhile, Metacognitive CQ is reflected in the UAE's efforts to position themselves as a moderate and tolerant country, creating strong relationships in the Islamic world while still maintaining their cultural identity. Behavioral CQ strategies are manifested in inclusive and responsive policies to cultural conflicts, which strengthen economic relations and reduce uncertainty. This research contributes to the understanding of the role of Cultural Intelligence as an analytical lens in exploring a country's economic diplomacy strategy, particularly in the UAE context. The implications of this research can serve as a basis for the development of better policies and practices in enhancing economic cooperation and achieving national and global goals.
Impactos da Terceirização da Educação Básica: Estudo exploratório sobre as representações sociais das famílias atendidas
Authors: Facco Cristiély
Published: September 2024

Ao longo das últimas décadas, um fenômeno sociocultural típico da modernidade tem estado cada vez mais presente no contexto educacional, a terceirização da educação, que leva as famílias a terceirizarem a responsabilidade integral da educação paras as escolas, quando a família é que deveria ser a responsável pelo desenvolvimento da criança e pela construção deste indivíduo. Este artigo, partindo da premissa de que a família é o seio onde o ser humano absorve valores culturais, religiosos, deveres, responsabilidades, compromissos que historicamente fortalecem as estruturas pessoais na sociedade, tem como objetivo analisar, desde um viés da Psicologia Social, as Representações Sociais que influenciam e que acabam por justificar, para as famílias, a terceirização da educação. A partir de um estudo teórico e de uma pesquisa de campo, verificou-se que o longo do tempo muitas foram as alterações nas estruturas e nos valores familiares até a modernidade, transações que alteraram a essência e conteúdo da família, até um estado em que esta última, para ser formada, dispensa sentimento, respeito, fidelidade, orientação sexual e assim por diante. Em meio a essas mudanças, a escola torna-se instrumento fundamental para equilibrar as dificuldades, pois ao cumprir o papel social da educação ela pode proporcionar o crescimento humano e fortalecer os alicerces da sociedade, ou seja, o papel se inverte, pois a escola, que deveria dar sequência à educação iniciada na família agregando conhecimento técnico e aprendizagem, termina assumindo a responsabilidade de construir valores éticos e morais das crianças e adolescentes.
A Study of CO2 Storage in Bimodal Carbonate Aquifer Rocks: Challenges and Enhancement through Foaming
Authors: Adebayo Abdulrauf R. , Rezk Mohamed G. , AlYousef Zuhair , Badmus Suaibu O. , Babu Rahul S.
Published: September 2024

In carbonate rock reservoirs, the presence of dual-pore systems, characterized by two distinct pore size distributions, plays a crucial role in gas storage in saline aquifers. However, comprehensive research on the impact of bimodal porosity on CO2 storage in such reservoirs is lacking. This study explores CO2 storage efficiency in carbonate aquifer rocks with bimodal porosity. Petrographic examination, capillary pressure measurements, and nuclear magnetic resonance (NMR) T2 profiling revealed two distinct and interconnected pore systems with equal effective porosity proportions. While both systems facilitated fluid flow, the micropores had a high capillary entry pressure (>100 psi). Coreflood experiments showed gas displacement efficiencies below 50%, primarily in larger pores, with only 49–58% of these large pores (20–28% of total pores) storing injected gas through residual trapping after water imbibition. To address this challenge, CO2 was foamed using a foaming agent to enhance viscous forces and overcome capillary forces. This resulted in significant improvements, including a 31% increase in displacement efficiency and a 28% increase in residual gas. NMR analysis revealed effective redirection of CO2 into smaller pores when foam was applied. In another experiment on a sample with a different pore geometry, the use of nanoparticles to strengthen foam increased sweep efficiency by up to 117%, with a corresponding increase of up to 169% in residual trapping. While the use of foam entails additional operational expenses, we contend that the economic viability of foam technology for CO2 storage hinges on a rigorous cost-benefit analysis that weighs increased storage capacity/security against chemical costs. Such analysis should also consider the time, cost, and uncertainty associated with developing additional storage sites. Furthermore, improved site selection criteria in carbonate rocks are needed, including a predictive model for T2 cutoff to identify aquifers with excessive micropores and avoid them during site selection. While fractured porosity is not within the scope of this study, it is expected that foam can equally improve sweep and trapping efficiencies in naturally fractured carbonate rocks.
Resistance and tolerance to Exserohilum turcicum in landrace sweet corn varieties from a diversity microcenter in Southern Brazil
Authors: Gonzalez Jorge Andres Betancur , Felipini Ricardo Barbosa , Zeist Andre Ricardo , Ogliari Juliana Bernardi
Published: September 2024

The northern corn leaf blight (NCLB) is one of the most important diseases affecting corn leaves. Resistance and tolerance mechanisms play crucial roles in helping plants protect themselves from pathogen attacks. The landraces from the Far West of Santa Catarina (FWSC), along with recent studies, have shown significant genetic variability for various traits. However, the presence of qualitatively resistant genes has not been confirmed. To address this gap, two experiments were conducted in a randomized block design with four replications during the 2019/2020 season. One experiment involved inoculation with a concentration of 2x103 spores mL− 1, without chemical control, while the other was not inoculated, and NCLB was controlled with difenoconazole-based fungicide. Evaluation included lesion type, incubation period, latency period, severity measured by the area under the disease progress curve (AUDPC), and corn ear productivity. The obtained data were subjected to analysis of variance, and Tukey's mean test was applied in individual variance analyses for the variables IP, LP, AACPD, and PROD. Joint analyses were performed only for variables common to both experiments (PROD and AACPD). Tolerance was evaluated by comparing productivity losses, considering severity increments, in the presence and absence of chemical control. Significant differences (p ≤ 0.001) were observed among genotypes for LP and PROD, specifically for the commercial variety BR401 and landrace 2029A in the experiment without chemical control. Joint analysis for experiment management and productivity revealed significant differences (p ≤ 0.005). The first record of this type of qualitative resistance gene in landraces in southern Brazil and the Cubano accession demonstrated the highest disease tolerance capacity, emphasizing its potential for germplasm conservation and utilization in breeding programs.
Impact of Vernalization and Heat Stress on Spring Wheat Growth, Gas Exchange and Yield Potential
Authors: Yıldırım Mehmet , Barutçular Celaleddin
Published: September 2024

For successful farming, it's important to know the positive and negative effects of exposing spring wheat to vernalization on plant growth, stress responses, and yield potential. The primary objectives of this research are to demonstrate how vernalization influences spring wheat development and to identify how vernalization interacts with heat stress tolerance. A growth chamber experiment was conducted to examine the grain yield, crop growth, and gas exchanges of spring wheat in response to vernalization, heat stress, and their interaction in order to assess the impact of these factors on wheat. Vernalization significantly decreased grain yield of spring wheat. Under non-vernalization conditions, heat stress after flowering produced a decrease in yield of approximately 80 percent. The average yields of wheat genotypes under heat stress conditions were 83% higher in vernalized plants than in non-vernalized plants. The grain yield of spring wheat genotypes was strongly related final spike weight and yield and grain filling rate all vernalizaition and heat stress combination conditions. In non-vernalization conditions, heat stress during grain filling reduced all gas exchange parameters, although the effect varies depending on the cultivar. Both under normal and heat-stressed conditions, vernalization led to a decrease in the rate of photosynthetic rate. According to the study's findings, it would be advisable to avoid early sowing because vernalization can reduce the yield potential of spring wheat. Vernalization seems to make plants more tolerant of high temperatures by reducing the weight of the plant's vegetative organs and increasing the weight of its generative organs.
Enhanced Hydrolysis of Lignocellulosic Waste Using Highly Efficient Ozone Pretreatment in a Venturi System: A Comparison of Free and Strainer Models
Authors: Halpern Barak , Pras Asaf , Halanur Manohara , Gerchman Yoram , Mamane Hadas
Published: September 2024

This study investigates eco-friendly ozone pretreatment processes for lignocellulosic waste, essential in bioethanol, biogas, and bioplastics production. Traditional methods are costly and polluting, limiting large-scale applications. We tested two pretreatment methods using cardboard as a model. The ozone was applied using hydrodynamic cavitation in a venturi system in two settings: the 'Strainer model', where cardboard is enclosed in a mesh strainer limiting ozone contact, and the 'Free model', where cardboard fibers circulate freely, maximizing ozone exposure. The 'Free model' showed a 100% ozone consumption rate, significantly higher than the 70% in the 'Strainer model', indicating better ozone reactivity. This model eliminates the need for ozone stripping in off-gas, offering safety and cost benefits.. Thermogravimetric analysis showed that the 'Free model' reduced lignin and increased holocellulose in the biomass, and increasing the streaming (zeta) potential. This pretreatment also enhanced hydrolysis efficiency, yielding 71% sugars compared to 54% in the 'Strainer model', supported by x-ray diffraction and Fourier transform infrared spectroscopy analysis. The increased surface area and direct ozone contact in the 'Free model' are key mechanisms driving these improvements.
Association between obstetric comorbidity index and Complications of vaginal delivery: a large cross-sectional study from China
Authors: Shen Xin , Mu Ge , Yang Liu , Li Hong , Su Yani
Published: September 2024

Background: The incidence of vaginal delivery complications（VDCs） has been increasing globally in recent years, posing a significant threat to the health of mother and offspring. The obstetric comorbidity index (OB-CMI) is a widely recognized tool that quantifies the burden of maternal comorbidities, predicting severe maternal morbidity or mortality during delivery and puerperium. Currently, it remains unclear whether there is an association between OB-CMI and VDCs.
Objective: The purpose of this study was to investigate the prevalence and spectrum of VDCs, and to explore the association between OB-CMI and VDCs. Additionally, we aimed to evaluate the use of OB-CMI in reducing the incident of VDCs in obstetrics.
Methods: This population-based cross-sectional study used data from the Shaanxi Province inpatients sample spanning from 2019 to 2022. We extracted all vaginal delivery data, maternal age and 20 comorbid conditions were assessed and weighted. The outcomes were the occurrence of VDCs. Cases of OB-CMI and VDCs were identified using the 10th Revision of the International Classification of Diseases (ICD-10) codes. The association between OB-CMI and VDCs was estimated using logistic regression models, with and without adjustment for age, level of medical institution, and route of admission.
Results: The overall prevalence of VDCs in Shaanxi province, China, from 2019 to 2022 was 11.86%. The top five complications of vaginal delivery were retained placenta and membranes without hemorrhage, other obstetric injuries, postpartum hemorrhage, other complications of labor and delivery not classifiable elsewhere, and perineal lacerations during childbirth, collectively accounting for 99.3% of vaginal delivery complications. For each one-point increase in OB-CMI, there was a 10% increase of VDC incidence after adjustment. Among the different categories of VDCs, OB-CMI was associated with other obstetric lacerations (P=0.002), postpartum hemorrhage (P<0.001), retained placenta and fetal Membranes (P<0.001), but not with perineal laceration (p=0.175).
Conclusions: The OB-CMI is associated with increased risk of VDCs. It may inform prenatal counseling of women in childbirth. OB-CMI score greater than 7 should be closely supervised vaginal delivery, Vaginal delivery is not recommended for OB-CMI score greater than 10.
Local Earthquake Response on the Submarine Communication Cable in The Northern South China Sea
Authors: Li Hao , Shen Xuzhang , Li Zhaohui , Chen Shaoyi
Published: September 2024

As a new seismological monitoring technology, distributed acoustic sensing (DAS) not only provides a high-precision seismic observation method, but also uses undersea communication fiber or dark fiber to reduce the layout cost, and supports long-term observation for several years, and the sensing resolution reaches the scale of meters. This technique provides a broad prospect for seismic observation in oceanic area which is difficult to be covered by traditional seismic observation instruments.
In this paper, we analyzed the DAS waveforms of 10 local-earthquake events waveforms recorded by offshore submarine communication cable in the northern South China Sea, and discussed the response ability of DAS system based on shallow sea communication cable to near-earthquake. It is found that the signals are affected by surface gravitational waves and micro seismic noise (Scholte Wave) generated by solid-liquid coupling motion. Then, waveform stacking, discrete wavelet transform, and empirical mode decomposition are used to denoise the signal in shallow sea area for extracting earthquake waveform. Submarine optical cable is the most widely distributed submarine signal monitoring system in the world. Long-term and cheap deep-sea seismic wave observation based on such the large-scale global ocean observation network can provide important data for the development of seismology.
Study on the Macro and Micro Characteristics of the Influence of Deviator Stress on True Triaxial Unloading Failure
Authors: Liu Yun , Lai Jie , Liu Yuan , Cong Yu
Published: September 2024

In order to investigate the influence of deviator stress on true triaxial compression with confining pressure and unloading tests, indoor experiments were conducted with six different stress combinations for unloading tests. Macroscopic characteristics of the true triaxial compression with confining pressure unloading test showed that during unloading, the ε1 curve dropped and then increased along the original loading curve, while the ε2 and ε3 curves dropped vertically during unloading and then continued to increase. When the minimum principal stress remained constant, with an increase in deviator stress, the peak stress and axial deformation also increased. During unloading failure, crack development mainly concentrated in the σ2 direction, while splitting and volume expansion were primarily concentrated in the σ3 direction. As deviator stress increased, the number of cracks increased, gradually forming a "V"-shaped failure pattern with more rock spalling on the surface. The energy characteristics of the unloading failure test showed that the elastic strain energy curve during unloading was similar to the axial stress-strain curve, with an increase in elastic strain energy related to axial stress changes. The dissipation energy rapidly increased in the post-peak stage, indicating sample failure, with a correlation between dissipation energy and sample failure. As deviator stress increased, the total energy and dissipation energy at complete sample failure increased, but the rate of increase in total energy and dissipation energy decreased as the σ3 value increased.
Flow Field-Based Enhanced Artificial Potential Field Method: Enhancing Cooperative Search and Obstacle Avoidance in Swarm Robotic
Authors: Xuan LiWei , Liu MingYong , He GuoYuan , Yan ZhiQiang
Published: September 2024

In the context of cooperative search and obstacle avoidance for a swarm of robots using heuristic optimization algorithms, the traditional artificial potential field method often leads to oscillating robot trajectories and excessive dispersion of the robot swarm. To address these issues, this study proposes an improved artificial potential field method based on a flow field as the obstacle avoidance approach for cooperative search in a swarm of robots. This method incorporates the robot's safety range and dynamically adjusts the repulsive potential field of obstacles to reduce the negative impact of inefficient obstacle avoidance on search efficiency. Additionally, an adaptive inertia weight adjustment method is designed for the robots, which considers the essence of robot updates and aims to smooth the robot's search trajectory and promote consensus building within the robot swarm. Finally, the proposed algorithm is validated through simulations and compared with relevant algorithms in different environments to demonstrate its effectiveness and efficiency.
Identification and prediction of biomarkers, immune infiltration features, molecular regulatory mechanisms, and potential therapeutic agents associated with cuproptosis in osteoarthritic cartilage
Authors: Li Xin , Da Zheng , Guo Rui , Guan Hao , Zhou Fucheng , Wang Ai
Published: September 2024

Background: Osteoarthritis (OA) is a prevalent chronic degenerative joint disease among older adults. Given the incomplete comprehension of OA mechanisms and treatment approaches, there is an urgent need for novel insights into potential mechanisms and targeted treatment methods for this disease. Cuproptosis, a newly proposed copper-dependent mechanism, plays a crucial role in the development and progression of various diseases. However, its role in the development of OA remains inconclusive. This study aimed to ascertain the functional pathways, hub genes, and immune infiltration characteristics associated with cuproptosis in OA cartilage. In addition, this study investigated the regulatory mechanisms underlying hub genes and identified prospective therapeutic agents for OA.
Methods: Gene expression profiles were retrieved from the Gene Expression Omnibus database. Employing R software, we screened for cuproptosis-related genes (CRGs) exhibiting differential expression between OA and normal cartilage, followed by sample classification based on their expression levels. Differentially expressed genes between cuproptosis subtypes were subjected to weighted gene co-expression network analysis to identify candidate hub genes associated with cuproptosis and OA. The identified genes were subsequently subjected to functional enrichment analysis. Employing the CytoHubba plugin in Cytoscape and a combination of LASSO with support vector machine methods, we further eliminated the hub genes. Afterward, hub gene validation, correlation analysis between hub genes and immune cells, hub gene co-expression analysis, and correlation analysis between hub genes and CRGs were conducted. Finally, networks of miRNA regulation, transcription factor regulation, and drug-gene interactions were constructed for the hub genes.
Results: A total of 104 candidate hub genes were identified, with functional enrichment analysis revealing their association with metabolism and inflammation. Subsequently, seven hub genes were further screened and validated, showing consistent expression in both the training and validation datasets. Immune cell infiltration analysis revealed associations between immune cells, OA, and cuproptosis. Potential regulatory mechanisms and factors underlying OA and cuproptosis were unveiled through hub gene co-expression and regulatory networks. Finally, we identified potential therapeutic drugs for OA through the DGIdb.
Conclusions: Through comprehensive bioinformatics analysis, we identified hub genes, immune infiltration characteristics, and functional pathways associated with cuproptosis in OA cartilage. Our in-depth exploration of regulatory mechanisms, interrelationships, and potential therapeutic drugs associated with the hub genes provides numerous potential research directions for investigating OA and cuproptosis.
A Dimensional Analysis for Cost Optimization and Cost-Effective Carbon Capture: A Comparative Study of Hybrid Post-Combustion Configurations in Natural Gas Power Plants
Authors: Obi Donald , Onyekuru Samuel , Orga Anslem
Published: September 2024

Carbon capture, utilization, and storage (CCUS) considered a the key strategy for reducing the emissions of anthropogenic carbon dioxide from power generation plants, can be achieved by three main technologies: oxy-fuel combustion, pre-combustion, and post-combustion capture.
Post-combustion carbon capture (PCC), where CO2 is removed after the fuel burning, is a crucial solution for reducing greenhouse gas emissions from natural gas power plants (NGPPs). However, high costs and energy penalties associated with PCC technologies hinder their widespread adoption.
Recent advancements in hybrid PCC configurations have shown promise in improving efficiency and reducing costs. In effect, six PCC hybrid configurations below were identified as feasible process routes:
· 2S-AB +AD: Two-stage Absorption + Adsorption hybrid
· 2S-AB +MB: Two-stage Absorption + Membrane hybrid
· 2S-AD +AB: Two-stage Adsorption + Absorption hybrid
· 2S-AD +MB: Two-stage Adsorption + Membrane hybrid
· 2S-MB +AB: Two-stage Membrane + Absorption hybrid
· 2S-MB +AD: Two-stage Membrane + Adsorption hybrid
Each hybrid has its own technical and economic challenges that need to be investigated in order to identify the best technique for carbon capture. In this paper, we performed Aspen Hysys design simulation of the six hybrids PCC configurations and also their economic evaluations using parameters like investment costs, operating costs, net present value, and rate of return, culminating in the use of three assessment parameters namely, levelized cost of electricity (LCOE), carbon emission intensity (CEI) and cost of carbon avoidance (COA), to evaluate the six hybrids PCC configurations and to determine the most viable option.
Overall, it was found by dimensional analysis that the post combustion carbon capture using 2S-MB +AB: Two-stage Membrane + Absorption hybrid is the most viable for capturing CO2 from power generation plants and is hereby recommended. However, the choice of materials (membranes and absorbents) needs to be evaluated so as determined the best optimal configuration for commercialization.
Comprehensive analysis of the effect of MAOA gene on inflammatory bowel disease
Authors: Yin Zhangzheng , Wu Kunfu , Peng Jie , Chen Jiayi , Wang Kaijun , Chen Wenwu
Published: September 2024

Mounting evidence indicates that a variety of functional genes can significantly affect the progression of inflammatory bowel disease (IBD); nevertheless, the association between monoamine oxidase A (MAOA) and the clinical features of IBD remains unclear. Here we demonstrated that MAOA was negatively correlated with the progression of IBD through GEO datasets and single-cell RNA-Seq online database. This may be that epithelial MAOA plays a major role. Then verified that MAOA was involved in the changes of drug and energy metabolism signaling pathway (MAOA high expression) and inflammatory signaling pathways (MAOA low expression) through Gene Set Enrichment Analysis (GSEA). Most importantly, we predicted the possible transcription factor of MAOA, KLF transcription factor 5 (KLF5). Subsequently, using STRING database, ten interacting proteins [e.g., dopa decarboxylase (DDC), dopamine beta-hydroxylase (DBH), and aldehyde dehydrogenase 2 family member (ALDH2)] of MAOA were found. Notably, ALDH2 is core enrichment in GSEA signaling pathway of MAOA high expression. We have also demonstrated that the MAOA’s expression is associated with therapeutic outcomes in gastrointestinal cancer. Furthermore, our findings indicate that MAOA expression is consistently downregulated in various cancers. Our research establishes the protective role of MAOA in IBD, suggesting its potential as a crucial target for addressing diseases associated with intestinal inflammation.
GFIDF:Gradual Fusion Intent Detection Framework
Authors: Yang Qimeng , Liu Yi , Lu Lanlan , Liu Lei
Published: September 2024

In the field of multimodal intent detection research, researchers have worked on seamlessly integrating various information types to accurately recognize user intent, which is crucial for creating efficient dialog systems in complex real-world environments. Current approaches still have significant potential for improvement in exploring deep connections between modalities and extracting key semantic features from non-textual data. In this paper, we introduce GFIDF, a step-by-step fusion intention detection framework model, which first purifies and noise reduces the video modal information and audio modal information, and then takes the textual information as the starting point to align and fuse the video and audio modal features with the textual modal information effectively, respectively. Experiments conducted on the MIntRec dataset demonstrate the effectiveness of the model in multimodal feature fusion, thus validating its research value.
Consensus Algorithm for Maintaining Large-Scale Access-Control Views of Education Data
Authors: Wu Xianglin , Meng Tianhao , Zhang Jingwei , Yang Qing , Chen Jintao
Published: September 2024

Exploring diverse education data applications through blockchain technology can offer innovative methods for smart education. Among them, storing multi-platform and multi-dimensional education data on the blockchain can enhance the system's ability to integrate and manage the data effectively. However, the system involves a large number of stakeholders. Furthermore, because the data are stored chronologically, relevant information may be distributed across multiple blocks. They will lead to security issues related to access and inefficient queries. We innovatively design an education data management system that combines access-control views with a consensus algorithm, effectively addressing the issue of low query performance for security data. Additionally, we propose a method that integrates main chain blocks and side blocks within a chained storage structure to recycle view blocks, effectively addressing the issue of block redundancy caused by non-periodic changes in the utilization of education data. For the proposed method, experiments are conducted on two education datasets to validate the efficiency of the proposed access control view in query performance and the effectiveness of the view maintenance consensus algorithm.
CFD Simulation of Micro-Level Water Transport of Potato Cells in Periodic Condition: Apoplastic and Symplastic Hydrodynamic
Authors: Ghorba Fatemeh Mozafari , Moghaddam Ahmad Ghazanfari , Shamsi Mohsen , Mohebbi Ali
Published: September 2024

The water transport mechanisms in potato microstructure consist of symplastic, apoplastic, and transcellular transport. Knowledge of the microscale behavior of water transport is important to increasing the productivity of food processing and obtaining high-grade processed food. In this research, a CFD simulation was performed in COMSOL Multiphysics for three different simplified designs of potato cell units representing a portion of microstructure, using three different equations for mass concentration in three parts, and velocity was simulated using the Brinkman equation in periodic boundary conditions during the low thermal process. The water concentration variation profile for the three designs is similar. The average velocity for all designs is the same in 0.72% cell fraction and has a difference in the highest fraction of 0.78% with 3.22×10− 9 m s− 1. From this simulation can conclude that velocity and diffusivity depend on both fraction and design, and mass concentration, and permeability depend on intercellular fraction for all designs, not the cell designs.
Exploring Submergence Impact on Flow Induced Motion Energy Harvesting with Cir-Tria Prisms
Authors: Sharifi Ali , Omidyeganeh Mohammad , Masdari Mehran
Published: September 2024

Recent advancements in energy harvesting have utilized Flow Induced Motion (FIM) as a renewable source, diverging from past efforts aimed at minimizing FIM's adverse effects. This study introduces kinetic energy converters using alternating lift technology (ALT), employing a prism with a Cir-tria cross-section, coupled with a spring and damper, to generate energy. Utilizing computational fluid dynamics in OpenFOAM for Reynolds numbers between 2×10³ and 13×10³ and varying submergence depth ratio from 0.98 to 5.91, the research employs a moving computational grid, two-dimensional incompressible Navier-Stokes equations, the k-omega Shear Stress Transport (SST) turbulence model, the Volume-of-Fluid, VOF, two-phase model, and the cylinder mass-spring-damper equation. Findings show that approaching the flow surface negatively impacts the FIM response due to the interaction of vortices from the flow surface and the prism’s upper shear layer. This interaction weakens and neutralizes the upper vortices, altering the flow structure around the prism and the governing FIM phenomena. Proximity to the free surface significantly affects FIM responses, with a notable decrease in vibration amplitude and energy conversion as the submergence depth ratio decreases from 5.91 to 0.98. Maximum system efficiency of 0.014 is observed in the VIV initial branch at infinite submergence (single-phase flow). Beyond a submergence depth ratio of 5.91, FIM amplitude and energy conversion plateau, indicating negligible free surface effects.
Palynotaxonomy of Leptohyptis Harley & J.F.B.Pastore and Oocephalus (Benth.) Harley & J.F.B.Pastore (Lamiaceae: Hyptidinae)
Authors: Carvalho Renata Jacomo Paixão , Guarino Gabriel Irene Pereira , Alves Andrielle Bezerra , Harley Raymond Mervyn , Pastore José Floriano Barêas , Mendonça Cláudia Barbieri Ferreira , Gonçalves-Esteves Vania
Published: September 2024

This paper aims to characterize the pollen of two genera within the subtribe Hyptidinae (Lamiaceae): Leptohyptis Harley & J.F.B. Pastore (4 species) and Oocephalus (Benth.) Harley & J.F.B. Pastore (12 species). The study evaluates whether pollen morphology corroborates the recent taxonomy of the group. Acetolysed pollen grains were measured, described, and photomicrographed. Non-acetolysed pollen grains were analyzed by scanning electron microscopy. All analyzed taxa have pollen grains shed in monads, isopolar, medium or large in size, 6-(8)-colpate, varying from suboblate to prolate, with small to very small polar area. The presence of an operculum was observed in all species of Leptohyptis. By contrast, in Oocephalus, an operculum was present only O. grazielae Harley and O. niveus (Epling) Harley & J.F.B.Pastore. The sexine is reticulate in Leptohyptis and bireticulate with ornamented lumina in Oocephalus, being densely reticulate internally. The muri are straight, with or without elevations at the intersections, forming wide and circular lumina or small lumina, as in O. halimifolius (Mart. ex Benth.) Harley & J.F.B.Pastore. The variations revealed by this study imply that pollen morphology holds significant taxonomic value for the systematics of the genera Oocephalus and Leptohyptis, particularly when morphometric and morphological characters are examined together. Assessment of quantitative values ​​by multivariate analyses (hierarchical cluster analysis and principal component analysis) was not sufficient to separate the genus Oocephalus into its four sections. Only O. niveus and O. petraeus (A.St.-Hil. ex Benth.) Harley & J.F.B.Pastore remained separated. All other species remained in the same main group in hierarchical clustering, and it was also not possible to group L. calida (Mart. ex Benth.) Harley & J.F.B.Pastore with other species of the genus. The results revealed the existence of polymorphism in pollen shape among the studied taxa.