bluuebunny/crossref_metadata_2025 huggingface dataset:
Angle-Resolved Lattice Population Density Plots: A Novel Approach for Fast 2D Unit Cell Determination from HAADF STEM Images
Authors: Weirich Thomas E.
Published: February 2025

This study presents a new efficient method for determining the 2D unit cell size from HAADF STEM images using angle-resolved lattice population density (ALPD) plots. The approach uses the maxima in these plots, which represent the lines with the highest atom peak density, to determine the cell angle of the primitive 2D unit cell. Lattice types and 2D unit cell sizes that comply with crystallographic standards can easily be obtained by introducing angle constraints for the selection of the ALPD maxima. The method is very flexible and can be applied to images with fewer than 20 atom peaks, making it valuable for the automated analysis of periodic lattices in both large and small crystalline regions. The method has been evaluated for ideal and disordered lattices and is compared in terms of processing speed and the quality of results with the recently proposed real-space motif extraction method and with the well-established Fourier-based crystallographic image processing method commonly used for this task.
Nonlinear Coupled Equations Free-Boundary Problem in Atherosclerosis: Symmetry Analysis of Solutions and Numerical Simulation
Authors: Zhang Yarong , Mu Xiaoya , Shi Xinyu , He Jihuan
Published: February 2025

Atherosclerosis, a chronic inflammatory cardiovascular disease closely related to plaque formation during arteriosclerosis, poses a significant threat to global health. To deepen the understanding of the multifaceted interactions driving atherosclerosis progression and provide theoretical support for designing targeted therapeutic strategies, this study establishes a nonlinear coupled atherosclerotic free-boundary model integrating inflammatory immune cells, cytokines, and oxidized low-density lipoprotein. By applying the compression mapping principle, the local and global existence and uniqueness of solutions are proven, while revealing certain symmetries in the model’s solution structure. Under specific assumptions, a quasi-steady-state approximate model is derived, and the existence of its solution is demonstrated. Through numerical simulations of the quasi-steady-state approximate model using the finite difference method, the temporal and spatial evolution of pro-inflammatory macrophages and oxidized low-density lipoprotein is analyzed. The findings highlight the model’s strength in capturing the intricate dynamics of atherosclerosis, uncovering underlying mechanisms and identifying therapeutic targets. By evaluating inflammatory dynamics across plaque types and stenosis levels, the experimental design further validated the model’s ability to replicate clinical processes and reinforced its predictive accuracy. Notably, in the process of model analysis and solution, symmetries in the equations and boundary conditions play a crucial role in determining the solution properties. However, the current one-dimensional model has limitations. Future research should focus on developing higher-dimensional models and integrating more influencing factors to enhance the model’s clinical applicability and deepen the understanding of this complex disease.
Theoretical Framework and Preliminary Evaluation of a Model for Analysing the Qualified Personnel Needing’s in the Hotel Accommodation Sector
Authors: López Santos Manuel Cavero , Guerra Ignacio Ruiz , Barreal Jesús
Published: February 2025

This study addresses the need for a comprehensive analysis of the demand for qualified personnel in Spain’s hotel accommodation sector, situating the issue within a context of increasing demand for specialized and highly personalized services in the tourism industry. The objective of this research is to develop a theoretical framework and conduct a preliminary assessment of a model designed to identify and quantify the need for skilled professionals across hotels of different categories and locations. This model considers key factors such as seasonality, required technical competencies, and labour market demands in the tourism sector. The methodology employed combines quantitative and qualitative data analysis from multiple sources, including prior studies, surveys of human resources managers, a review of the academic literature on human resource assessment models in the hotel industry, and a validation survey. Preliminary findings indicate a significant shortage of professionals with advanced expertise in critical areas such as operations management, multilingual customer service, and process digitalization, highlighting the urgent need for a strategic approach to training and talent retention. The conclusions emphasize the importance of adapting workforce planning to the specific demands of Spain’s hotel sector while drawing comparative insights from models in France and the United States. This study proposes strategies to enhance the sector’s competitiveness and sustainability in an increasingly globalized market.
A New Approach to Assessing Transport Network Resilience
Authors: Postorino Maria Nadia , Sarnè Giuseppe M. L.
Published: February 2025

External events, as well as internal traffic flow conditions, can impact the performance of one or more infrastructure elements of a transportation network, potentially affecting the resilience of the system. This paper proposes an innovative approach to integrate key aspects of land use and infrastructure into the supply model of the road transportation system. Specifically, the concept of “augmented link” is introduced, which aims to include exogenous characteristics (e.g., referring to land use and/or infrastructure) into the transportation network model to assess network resilience and ensure optimal network performance, even under emergency conditions. The objective is to identify links that are most likely to experience critical failures within the road network by considering both external events and traffic flows affecting each link. The proposed approach was applied to a simulated test case. The obtained results are encouraging and showed the great potential of the proposed approach to identify a priori reliable routes under emergency conditions.
Water Quality Assessment and Forecasting Along the Liffey and Andarax Rivers by Artificial Neural Network Techniques Toward Sustainable Water Resources Management
Authors: Abushandi Eyad
Published: February 2025

This research evaluates water quality in two contrasting hydro-climatic regions: the River Liffey in Ireland and the Andarax River in Spain. It utilizes an Artificial Neural Network (ANN) to simulate potential changes in key water-quality parameters based on field measurements. The ANN models showed strong predictive efficiency and performance, achieving R2 values of 0.89 for dissolved oxygen (DO), 0.98 for electrical conductivity (EC), 0.87 for pH, 0.95 for total dissolved solids (TDS), and 0.96 for turbidity. The root mean-square-error (RMSE) values for important parameters were DO (1.25 mg/L), EC (48.06 µS/cm), and turbidity (8.9 FNU). The models were able to capture complex nonlinear relationships under different environmental conditions. The results showed that DO levels in the Liffey will decline by up to 20% over the next decade due to rising nutrient pollution, while TDS levels in the Andarax River are expected to rise by approximately 15% during the same period as a result of ongoing agricultural runoff. The study also simulated potential future hypothetical scenarios by applying the model to four different “what-if” situations. Overall, the research underscores the significance of machine learning in understanding intricate water-quality dynamics.
Clean and Green Bamboo Magic: Recent Advances in Heavy Metal Removal from Water by Bamboo Adsorbents
Authors: Negi Monika , Thankachan Vinju , Rajeev Arya , Vairamuthu M. , Arundhathi S. , Nidheesh P. V.
Published: February 2025

Adsorbents derived from bamboo, such as biochar, charcoal, activated carbon, and chemically modified bamboo, are recognized for their efficiency and cost-effectiveness in removing heavy metals from water. Despite this, there remains a gap in applying bamboo-based adsorbents for treating heavy metal-contaminated water sources, particularly regarding their physicochemical properties, adsorption mechanisms, and modifications. This review highlights the influence of factors such as specific surface area, pore distribution, pH, cation exchange capacity, elemental composition, and surface functional groups on the ability of bamboo adsorbents to adsorb heavy metals. It also discusses recent advancements in enhancing the properties of bamboo adsorbents through physical and chemical modifications and examines how variables like adsorbent dosage, water pH, temperature, initial concentrations of cations, and heavy metals affect heavy metal removal. The review categorizes the mechanisms of heavy metal adsorption into surface complexation, physical adsorption, electrostatic interaction, ion exchange, precipitation, and redox effect. While bamboo-based adsorbents have shown higher sorption capacity in laboratory settings, there is a need for more comprehensive studies to optimize their performance, scalability, and cost-effectiveness in real-world applications.
Research on Flow Field Characteristics of a Three-Plate Vertical Rotary Gate
Authors: Qi Houyi , Zhang Xiao , Sun Yuxue , Ji Xinyu , Tian Dong , Sun Chao , Xue Zhenzhen , Liu Yanshun
Published: February 2025

Steady-state and transient hydraulic characteristics of a novel three-plate vertical rotary gate were analysed through physical model experiments and numerical simulations. An experimental gate system was built to analyse the flow characteristics of the gate, and a steady-state flow prediction model was proposed. Steady-state numerical simulations of the gate were conducted to analyse flow field distribution characteristics. A transient numerical model of the gate was established to analyse the flow field distribution characteristics during opening and closing. The discharge coefficient evolution law under different speed conditions was revealed. Under various water levels, the steady-state discharge coefficient of the gate was similar. Within a 0–90° opening, the discharge coefficient grew exponentially. A steady-state flow prediction model for the gate revealed a prediction error of <7%. The discharge coefficient of the gate increased with decreasing opening speed; when the gate was closed, it exhibited asymmetric variation characteristics. The flow hysteresis effect was more evident at higher speeds. Plate 2 experienced the maximum flow force. In the transient state, the flow force acting on the plates exhibited a periodic fluctuation pattern, and the maximum flow force increased with the gate speed. A reference for the design and application of fast opening and closing gates is provided.
Biodeterioration Study of Cementitious Materials During Sewage Treatment Processes
Authors: Kashaija Nedson T. , Gável Viktória , Iklaga Gabriel , Alexander Augustina , Gergely Krett , Mireisz Tamás , Szabó Csaba , Szabó-Krausz Zsuzsanna , Vargha Márta , Tóth Erika
Published: February 2025

The relationship between microbial communities and mineralogical/mechanical changes was studied regarding the biodeterioration of Portland cement (PC) and calcium sulfoaluminate cement (CSAC) in a wastewater treatment plant. An in situ experiment was conducted by submerging 12 independent PC and CSAC specimens in a sand-trap structure for 10, 30, 75, 150, and 240 days. The microbiological analyses of the 16S rRNA genes of bacteria and Archaea from the biofilms and the geochemical analysis were performed on the studied specimens. The results showed that while there were characteristic changes in PC specimens over time, CSAC specimens showed few biodeterioration effects. The dominant bacteria identified from the biofilms of specimens belonged to the classes of Gammaproteobacteria (8.4–32.4%), Bacilli (1.6–21.6%), Clostridia (4–15.4%), Bacteroidia (2–18.8%), Desulfovibronia (0.5–19%), Campylobacteria (0.4–26.8%), and Actinobacteria (1.8–12.8%). The overall relative abundance of the bacteria linked to biodeterioration processes increased to more than 50% of the total bacterial communities after 75 days of sewage exposure and was found to be strongly correlated with several PC deterioration parameters (e.g., mass loss, calcite and ettringite minerals), whereas no significant correlation was revealed between these genera and CSAC characteristics.
Role of CDH2 and DCHS2 genes in classification of affective-delusional and hallucinatory-paranoid psychopathological syndromes of paranoid schizophrenia
Authors: D. A. Sheleg D. A. , M. N. Karagyaur M. N. , K. D. Bozov K. D. , Primak A. L. , Arbatskiy M. S. , Jawari S. S. , Illarionova M. E. , Semina E. V. , Samokhodskaya L. M. , Klimovich P. S. , Popov V. S. , Tsygankov B. D. , Tkachuk V. A. , Neyfeld E. A.
Published: February 2025

Positive symptoms in paranoid schizophrenia are caused by mutations in a separate group of genes
common with bipolar disorder type I. This fact suggests the presence of a genetically determined substrate in severe psychopathological syndromes within paranoid schizophrenia, such as affective-delusional and hallucinatory-paranoid
syndromes. Dysfunction and expression of genes involved in the processes of brain formation and development is considered one of the possible causes of mental illness.
Objective. Based on the results of examining patients with paranoid schizophrenia with leading affective-delusional and hallucinatory-delusional syndromes, identify the correlation of genomic variants rs1944294‑T of the CDH2 gene, rs11935573‑G and rs12500437‑G/T of the DCHS2 gene associated with the development of paranoid schizophrenia, with a psychopathological syndrome.
Material and methods. The study participants were Caucasian, were not blood relatives and lived in Russia. The diagnosis of paranoid schizophrenia (F20.00 and F20.01) was established during a clinical interview. Two groups were formed to conduct the study. The first group included patients (n=27) with an established diagnosis of paranoid schizophrenia, affective-delusional syndrome. The second group included patients (n=45) with an established diagnosis of paranoid schizophrenia, hallucinatory-paranoid syndrome.
Results. Statistical analysis of the distribution of identified alleles did not reveal a significant correlation of the genomic variants rs11935573‑G of the DCHS2 gene and rs6265 of the BDNF gene with the leading psychopathological syndrome of paranoid schizophrenia. The absence of reliable results indicates the presumed absence of a role for mutations of the DCHS2 and BDNF genes in the formation of the clinical picture of affective-delusional and hallucinatory-paranoid syndromes as part of the symptom complex of paranoid schizophrenia.
Inquérito sobre insegurança alimentar em pacientes com COVID-19 no município de São João del Rei
Authors: Abdo Giulia Ferreira Mattar , Borges Caroline , Vital Giovanna Almeida , Pereira Júlia Gabriela Marques , Mesquita Isabella Giordano , Carvalho Isadora Rover de , Miranda Thales Bajur Alves , Jesus José Batista de
Published: February 2025

Introdução: O vírus SARS-CoV-2 foi descoberto em 2019 e, desde então, a infecção da COVID-19 se alastrou, apresentando altas taxas de transmissibilidade e mortalidade. Nesse contexto, a segurança alimentar ganhou maior notoriedade visto sua importância no fortalecimento do sistema imunológico e, consequentemente, na proteção contra infecções. Objetivo: Coleta de dados para compreender a relação entre a apresentação de gravidade da COVID-19 e a insegurança alimentar. Metodologia: Estudo transversal em que foram levantados dados de 67 pacientes com COVID-19 e realizada a aplicação da Escala Brasileira de Insegurança Alimentar (EBIA). Duas análises estatísticas são executadas visando à comparação das variáveis apoiadas no teste de hipótese do método de qui-quadrado com nível de significância de 5%. Resultados: Dos 67 prontuários, 28 pacientes apresentaram gravidade, enquanto 39 não. Os dados do EBIA mostraram que o nível de segurança em domicílios com menores de 18 anos apresentou-se em forma de segurança alimentar (51,7%) e insegurança alimentar leve (48,3%). Já nos domicílios sem menores de 18 anos, apresentou-se em forma de segurança alimentar (71,1%), insegurança alimentar leve (18,4%), insegurança alimentar moderada (5,3%) e insegurança alimentar grave (5,3%). A análise estatística evidenciou que as chances do paciente vir a apresentar sinais de gravidade durante a COVID-19, possui relação de dependência com o nível de insegurança alimentar (p=0,04). Conclusão: A segurança alimentar é essencial para uma resposta imune eficiente, e, consequentemente, da diminuição da gravidade do COVID-19. Logo, são necessários mais estudos na área visando maior desenvolvimento de políticas eficazes para lidar com a insegurança alimentar e seus impactos na saúde.
Brain Drain in Yemeni Universities: Analysis of HR Management Strategies for Retention and Job Satisfaction
Authors: Saleh Alhebshi Sukainah Hasan , Alharazi Antar Fuad Ali , Abdulrasheed Abdullah Aminullah , Masood Taleb Najib Radman , Khalaf Alia Majed Ahmad
Published: February 2025

Brain drain is one of the most serious problems that economic development and educational standards in countries like Yemen especially suffer from. The study investigates the link between HR management approaches, labor satisfaction, and their combined impact on Yemen’s economy. The research highlights the importance of a high-skilled labor force in global development and the paradoxical challenges brain drain imposes. The main objective of this project is to study the complicated patterns that lead to brain drain, assess its economic impact on academic establishments and a country as well analyze methods used by HRM- human resources managers; they also help identify other implications derived from job satisfaction including role play. This work reflects on the nuances of organizational efficacies, analyzing how HRM policies influence retention or attrition rates for competent workers. This stage aims to explore the complicated relationship between an individual’s happiness and their overall organizational system. It seeks to delve further into the understanding of how job satisfaction can accentuate or mitigate brain drain. The findings provide evidence of the significant effects of HR management techniques, satisfaction with work, and economic variables on the intentions toward leaving for other countries among academic staff members in Yemeni universities. On the one hand, discriminant validity analyses prove that measuring constructs are distinct from each other whereas R values highlight the predictive relevancy of the structural model. Mediation studies show that satisfaction with pay is a mediator between salary, supervision, and intentions of brain drain.
Charged forms of some nitroborazines – A DFT treatment
Authors: Türker Lemi
Published: February 2025

Spark sensitivity of explosives is an important subject. One of the causes of accidental explosion of explosives is due to static electricity. The present study deals with the development of static electric charge on nitroborazines resulting ionic charges eventually. In the present study, mono ionic forms of various nitroborazines are considered within the restrictions of unrestricted density functional theory at the level of UB3LYP/6-311++G(d,p) level. All the ionic systems of present interest are thermally favored and electronically stable at the standard states. Various structural and quantum chemical data have been collected and discussed, including UV-VIS spectra.
Pre-service Teachers’ Awareness and Improvement Demands on Elementary Social Studies Teacher's Guidebook in Social Studies Lesson Planning
Authors: Yoon Okkyong
Published: February 2025

This study is a basic study to understand how elementary school pre-service teachers perceive and use teacher's guidebooks when planning social studies lessons. While preparing for the mock lesson, elementary school pre-service teachers critically analyzed the teacher's guidebooks and explored ways to use them on the premise of actual classes. Elementary school pre-service teachers analyzed, evaluated, and suggested improvements in terms of materials, classes, and learners for social studies teachers. Elementary school pre-service teachers said that resources for solving real-life case problems were needed for teacher's guidebooks in the social studies lesson planning process, and that they should include a fair perspective without bias, and specific problem solving and action plans. They also addressed that the materials in the teacher's guidebook will guide the teacher's role and learning process and help ease the learning burden. Elementary school pre-service teachers pointed out that while teacher's guidebooks are helpful when used in class planning, conversely, relying on formal lessons in the teacher's guidebook may hinder creative instruction or teacher expertise. Through this study, implications were obtained for the development of curriculum books to improve the teaching expertise of pre-service teachers in the future.
COMPUTATIONAL MODEL OF CIRRHOTIC PORTAL HYPERTENSION
Authors:   Institute of Pathological Physiology  First Faculty of Medicine Charles University, Ježek Filip , Tapper Elliot B. ,   Division of Gastroenterology and  Hepatology, University of Michigan,  Ann Arbor, Michigan, USA, Beard Daniel A. ,   Department of Molecular and  Integrative Physiology, University  of Michigan, Ann Arbor, Michigan,  United States of America, Mazumder Nikhilesh R ,   Division of Gastroenterology and  Hepatology, University of Michigan,  Ann Arbor, Michigan, USA
Published: February 2025

Background & Aims: As liver disease progresses, scarring results in worsening hemodynamics ultimately culminate in portal hypertension. This process has classically been quantified via the Hepatic Venous Pressure Gradient (HVPG), however HVPG alone does not predict a given patient’s clinical presentation with regards to Baveno stage of cirrhosis. In this study we propose that a patient’s ‘HVPG-sensitivity’ to venous remodelingcould explain disparate disease trajectories.
Electoral System of Russia: From the Duma Elections of 1906 to the Presidential Elections of 2024
Authors:   Pushkin Leningrad State University, Saint Petersburg, Russian Federation, Romashov R.A. , Vinogradov O.V. ,   Pushkin Leningrad State University, Saint Petersburg, Russian Federation, Rybkina M.V. ,   Pushkin Leningrad State University, Saint Petersburg, Russian Federation
Published: February 2025

Based on the proposed definition of the electoral system as a set of institutional and procedural components that ensure the holding of open, free, democratic elections in Russia, a comparative legal analysis of the features of the organization and conduct of elections to representative bodies of public power is carried out at various historical stages (cycles) of Russian political genesis. The structure of the modern Russian electoral system is analyzed. The objectives of the electoral process, legislative framework, subject composition and substantive features are determined. The characteristics of the 2024 presidential election campaign are carried out, with an emphasis on the peculiarities of its conduct in the constituent entities of the federation, in the territories of which emergency regimes of legal regulation are in force.
Contaminación ambiental en la Laguna de Yahuarcocha, Ibarra, Ecuador
Authors: Hernández-Vila Alejandra , Hernández Infante Rafael Carlos , Infante Miranda María Elena
Published: February 2025

El objetivo general de la investigación fue analizar contaminación ambiental en la Laguna de Yahuarcocha, en el Cantón Ibarra. El método de la investigación se basó en el enfoque cuantitativo, manejando la recolección y análisis de una tipología documental-bibliográfica. Además, se realizó la observación de campo y sistemática, lo que permitió obtener información profunda sobre elementos contaminantes que afectan el ecosistema. Se aplicó un cuestionario. En conclusión, es necesario sensibilizar a la población sobre la necesidad de contribuir al cuidado del medioambiente, establecido en la normativa legal ecuatoriana, de modo que se fomente su conciencia ambiental y se ayude a evitar la contaminación en la Laguna de Yahuarcocha, promoviendo prácticas sostenibles.
Diagnóstico de la gestión de servicios hoteleros en Manabí, Ecuador
Authors: Rodríguez-Chávez Mariana Isabel , Muñoz-Cabrera Jacinta Clarivel , Negrin-Sosa Ernesto
Published: February 2025

El diagnóstico de la gestión de servicio permite evaluar el desempeño de los procesos en una organización y determinar las áreas de mejora. El objetivo es diagnosticar la calidad de servicio en la atención al cliente del Hotel Higuerón que contribuya al mejoramiento de la satisfacción del cliente. Se aplicó una entrevista, encuesta y observación directa al gerente, colaboradores y clientes. Se aplicó un modelo de servucción en el Hotel Higuerón relacionado a la optimización de los procesos internos asociados a la calidad del servicio, luego se midió la calidad del servicio a fin de lograr el conocimiento de la satisfacción de los clientes. En conclusión la calidad de servicio del Hotel es satisfactoria según sus clientes por la buena gestión con la que se manejan sus actividades, aunque existieron dos dimensiones con falencias quienes impidieron que el cliente se sienta totalmente satisfecho del servicio brindado
Financial costs for the treatment of caries and Its complications, taking into account the structure of the need for dental treatment
Authors: Egorova Ya.A. , Olesova E.A. , Zaslavsky S.A. , Andreeva I.L. , Olesov E.E.
Published: February 2025

Currently, research is relevant to determine the specific need for different types of dental treatment in certain groups of the population, in particular, among workers in industries with hazardous working conditions (HWC) for optimal and accurate planning of financing of dental services from compulsory medical insurance funds.
The purpose of the study: justification of the volume of funding for the treatment of caries and its complications in workers with dental problems at the Kalinin NPP based on data on the need for dental treatment.
Materials and methods. A clinical and X-ray examination of 100 workers from the 35–44-year-old Kalinin NPP was conducted in order to calculate the need for the treatment of caries and its complications. The cost of types of treatment from Compulsory Health Insurance Fund (CHI) is calculated according to the tariffs of the Territorial CHI Program of the Tver region for 2024, and then, based on the need for each type of treatment, the financial costs of the CHI Fund are calculated per 1 employee with HWC.
Results. Based on the data obtained during the study, it was established that in the studied group of workers with HWC, the necessary costs of the CHI Fund for the treatment of caries and its complications amount to 4885.61 rubles per 1 worker. In the structure of financial costs, a smaller share is occupied by treatment at the initial stages of tooth decay – when applying fillings on one surface of the tooth, as well as costs for tooth extraction; the largest costs are such options for necessary treatment as applying fillings on two surfaces of the tooth, endodontic treatment and especially repeated endodontic treatment.
Conclusions. The obtained data can be used in planning dental care for decreed population groups and the corresponding costs of the Compulsory Medical Insurance Fund, and the applied methodology can contribute to increasing the medical and economic efficiency of the departmental dental service.
Drummond e os vapores de um sequestro
Authors: Voltarelli Roque Maura
Published: February 2025

This article, with an essayistic bias, starts from the poem “Desdobramento de Adalgisa”, by Carlos Drummond de Andrade, to put into motion Mário de Andrade’s hypothesis that there would be a kidnapping, that is, a repression of desire in the poet’s first books. Faced with the dismantling of images that go through “Desdobramento de Adalgisa”, a trace of hysteria seems to emerge that foresees a disorder of the poetic gesture. In a second moment, we show how reverberations of Adalgisa’s hysteria can be seen in the erotic, floral and metamorphic imagination of O Amor natural and also in the indomitable aspect of the anti-euclidean orchid-nymph that subverts the limits of geometry. Such subversion by the desire-image that is the orchid allows us to conclude that the kidnapping transforms into something else, taking on new contours as desire begins to exist as a crossing of the abyss, a way of insisting on life and the world despite death.
A interseccionalidade trágica em Úrsula (1859), de Maria Firmina dos Reis
Authors: Pereira Vieira Joyce , Helena de Almeida Nogueira Nícea
Published: February 2025

This article aims to apply the concept of intersectionality, intertwined with the notion of the tragic, as proposed by Terry Eagleton (2013), in the analysis of the character Mother Susana from Firminiano’s novel Úrsula (1859). Through this character, the study explores the convergence of multiple intersecting dimensions of social oppression, including gender, race, violence, deprivation of freedom, usurpation of identity, and belonging. Slavery in nineteenth-century Brazil constituted a national tragedy and a disgrace sanctioned by both the government and the patriarchal society of the time. Drawing on the works of Patricia Hill Collins and Sirma Bilge (2021), bell hooks (2019), and Eduardo Duarte (2018), this research conducts a critical analysis of this significant piece of Brazilian literature, with a specific focus on the enslaved character mentioned. The methodology employed for this study is based on a comprehensive literature review to provide a solid foundation for the proposed approach.
Low-voltage and high-speed ferroelectric liquid crystal devices for high-resolution driving in electronic holographic displays
Authors: Kobayashi Hiroki , Tochigi Hiroto , Nakatani Masakazu , Aoshima Ken-ichi , Kawana Mayumi , Yamaguchi Yuta , Machida Kenji , Funabashi Nobuhiko , Fujikake Hideo
Published: February 2025

We present a method to enhance the layered structure of surface-stabilized ferroelectric liquid crystals (SSFLCs) for low-voltage, high-speed operation in electronic holographic displays. By applying a combination of heating, slow cooling, and square-wave low-voltage (<1 V), we reduced the switching voltage and achieved sub-1 ms switching times, fulfilling the 360–720 Hz requirements for spatial light modulators (SLMs) in electronic holographic displays. Switching angles and switching times to voltage application, including high voltages, were clarified for such devices. The proposed method also suppressed zigzag defects, improving uniformity and light efficiency. This work advances high-resolution SSFLC-based SLMs for next-generation 3D holographic displays.
Potensi Kolam Depresi Kanaan Sebagai Solusi Inovatif Untuk Pengendalian Banjir Di Kota Bontang
Authors: Asmirah Asmirah , Surya Batara , Sariman Syahrul
Published: February 2025

Penelitian ini bertujuan untuk menganalisis potensi pembangunan Kolam Depresi Kanaan di Kota Bontang dalam mengurangi risiko banjir dan memberikan manfaat sosial serta ekonomi bagi masyarakat. Metode yang digunakan adalah pendekatan kualitatif, dengan pengumpulan data primer dan sekunder melalui survei pendahuluan, wawancara mendalam, serta analisis peta kadastral. Hasil penelitian menunjukkan bahwa daerah yang paling terdampak banjir terletak di hilir sungai, dengan mayoritas masyarakat berpenghasilan rendah yang sangat rentan terhadap dampak banjir. Pembangunan Kolam Depresi diharapkan dapat menampung kelebihan air hujan dan mengalihkan aliran air ke lokasi yang lebih aman. Selain itu, analisis menunjukkan bahwa keterlibatan masyarakat dalam proses pengadaan tanah dan relokasi sangat penting untuk meminimalkan potensi konflik sosial. Penelitian ini juga menemukan bahwa kolam depresi dapat memberikan dampak positif terhadap lingkungan, termasuk peningkatan kualitas tanah dan keanekaragaman hayati. Dengan demikian, proyek ini diharapkan tidak hanya berhasil mengatasi masalah banjir, tetapi juga meningkatkan kualitas hidup masyarakat di Kota Bontang secara berkelanjutan.
This study aims to analyze the potential of the Kanaan Depression Pond development in Bontang City to reduce flood risk and provide social and economic benefits to the community. The method used is a qualitative approach, with primary and secondary data collection through preliminary surveys, in-depth interviews, and cadastral map analysis. The results of the study indicate that the areas most affected by flooding are located downstream of the river, with the majority of low-income communities who are very vulnerable to the impacts of flooding. The construction of the Depression Pond is expected to accommodate excess rainwater and divert water flow to safer locations. In addition, the analysis shows that community involvement in the land acquisition and relocation process is very important to minimize the potential for social conflict. This study also found that the depression pond can have a positive impact on the environment, including improving soil quality and biodiversity. Thus, this project is expected to not only succeed in overcoming flood problems, but also improve the quality of life of the community in Bontang City in a sustainable manner.
Kajian Sosial Dan Implikasi Sosiologi Pembagian Jalan Lingkar Berbas Pantai Tanjung Laut Indah Kota Bontang Kalimantan Timur
Authors: Iskandar Iskandar , Sabiq Muhammad
Published: February 2025

Tujuan penelitian ini adalah untuk menganalisis persepsi masyarakat terhadap rencana pembangunan Jalan Lingkar Berbas Pantai – Tanjung Laut Indah di Kota Bontang serta mengevaluasi dampak sosial dan lingkungan yang mungkin timbul. Metode penelitian yang digunakan adalah mix method, menggabungkan pendekatan kualitatif melalui wawancara mendalam dan kuantitatif melalui survei yang melibatkan 45 responden. Hasil penelitian menunjukkan bahwa mayoritas responden mengetahui rencana pembangunan, namun pemahaman mengenai tujuan dan kebijakan pemerintah masih terbatas. Di samping itu, pembangunan jalan diharapkan dapat meningkatkan aksesibilitas, mengurangi keterisolasian wilayah pesisir, serta menciptakan peluang ekonomi baru. Namun, potensi dampak negatif terhadap lingkungan, terutama pada kawasan mangrove, perlu diatasi melalui mitigasi yang tepat. Pembahasan menunjukkan pentingnya keterlibatan masyarakat dalam perencanaan proyek untuk mencapai keberhasilan yang inklusif dan berkelanjutan.
The purpose of this study was to analyze public perceptions of the planned development of the Berbas Pantai – Tanjung Laut Indah Ring Road in Bontang City and to evaluate the possible social and environmental impacts. The research method used was a mix method, combining a qualitative approach through in-depth interviews and a quantitative approach through a survey involving 45 respondents. The results showed that the majority of respondents were aware of the development plan, but their understanding of government goals and policies was still limited. In addition, road construction is expected to improve accessibility, reduce the isolation of coastal areas, and create new economic opportunities. However, the potential negative impacts on the environment, especially in mangrove areas, need to be addressed through appropriate mitigation. The discussion shows the importance of community involvement in project planning to achieve inclusive and sustainable success.
PENGEMBANGAN SISTEM INFORMASI MANAJEMEN STOK BERBASIS WEBSITE PADA PROP NOODLE BAR MANYAR
Authors: Adam Farisa , Probo Sumirat Lambang , Santoso Budi
Published: February 2025

Perkembangan teknologi informasi yang pesat telah membawa dampak signifikan dalam berbagai aspek kehidupan manusia, termasuk dalam dunia bisnis. Salah satu penerapannya adalah Sistem Informasi Manajemen (SIM) yang menjadi krusial dalam operasional dan pengambilan keputusan. Penelitian ini berfokus pada pengembangan Sistem Informasi Manajemen Stok berbasis web untuk Prop Noodle Bar Manyar, yang selama ini masih menggunakan sistem manual dalam pencatatan stok barang. Dengan mengadopsi teknologi seperti PHP untuk pemrograman dan MySQL sebagai database, sistem ini diharapkan berkontri busi untuk meningkatkan efisiensi dan akurasi dalam pengelolaan stok. Metodologi penelitian yang digunakan meliputi identifikasi masalah, studi literatur, pengumpulan data melalui wawancara dan observasi, analisis data, pengembangan sistem, dan pengujian. Model pengembangan sistem menggunakan metode Waterfall. Hasil penelitian menunjukkan bahwa sistem informasi yang dikembangkan mampu memberikan informasi yang lebih lengkap dan cepat, serta mengurangi kesalahan dalam pengelolaan stok. Uji terima yang dilakukan melalui survey dengan 23 responden yang telah didapatkan terdiri dari 29% Waiters, 21% Kasir, 17% Barista, dan 33% Cook, dapat disimpulkan dengan adanya aplikasi ini dapat membantu proses pelaporan barang masuk dan keluar, pelaporan stok barang, pelaporan pembelian, penjualan dan proses melakukan stok opname, baik untuk penelitian maupun dikembangkan bagi perusahaan sejenis yang membutuhkan.
Pengaruh Pemberian Filtrat Fermentasi Nira Kelapa, Jaka, Ental Terhadap Tingkat Malondialdehide (MDA) Plasma Darah Mencit Yang Dipapar Asap Rokok
Authors: Kurniawan I Gusti Bagus Jordy Bhadrika , Ratnayantiin I Gusti Ayu Dewi , Wiryawan I Gusti Nyoman Sri
Published: February 2025

Stres oksidatif dan nitrosatif yang diinduksi oleh asap rokok memainkan peran penting dalam patogenesis penyakit seperti diabetes, kanker paru-paru, aterosklerosis, dan penyakit paru obstruktif kronik (PPOK). Minuman tradisional yang dihasilkan dari proses fermentasi nira kelapa, nira jaka, ataupun ental mengandung kadar antioksidan yang tinggi sehingga produk hasil fermentasi merupakan sumber antioksidan yang potensial untuk mencegah timbulnya stres oksidatif. Penelitian ini bertujuan untuk mengevaluasi pengaruh pemberian filtrat fermentasi nira kelapa, nira jaka/aren, dan filtrat fermentasi ental terhadap kadar Malondialdehyde (MDA) sebagai penanda stres oksidatif pada mencit yang dipapar asap rokok. Penelitian ini menggunakan metode eksperimental dengan rancangan post-test only control group design. Sebanyak 32 ekor mencit dibagi menjadi 8 kelompok untuk menguji efektivitas filtrat fermentasi dalam menurunkan kadar MDA. Paparan asap rokok secara signifikan meningkatkan kadar MDA pada mencit dibandingkan kontrol negatif. Pemberian filtrat fermentasi nira kelapa menunjukkan penurunan kadar MDA yang signifikan. Nira aren mampu menurunkan kadar MDA, meskipun efeknya lebih rendah dibandingkan nira kelapa. Filtrat fermentasi ental menunjukkan efek peningkatan kadar MDA dibandingkan pemberian nira kelapa dan nira aren.: Filtrat fermentasi nira kelapa paling efektif dalam menurunkan kadar MDA pada mencit, baik dengan atau tanpa paparan asap rokok dibandingkan dengan filtrat fermentasi nira aren dan filtrat fermentasi ental.
Multifocal Musculoskeletal Tuberculosis of Both Hands
Authors: Engelbrecht Nicolaas , Van der Merwe Janey
Published: February 2025

Objective: This case report presents a rare case of recurrent multifocal musculoskeletal tuberculosis (TB) of the wrists, mimicking rheumatoid arthritis, and highlights the diagnostic challenges in osteoarticular TB.
Case Report: A 41-year-old female initially presented in 2014 with right wrist swelling. Magnetic resonance imaging (MRI) findings suggested tuberculous tenosynovitis, and she was treated with a nine-month course of antituberculous therapy (ATT), leading to symptom resolution. Nearly a decade later, the patient developed bilateral wrist swelling. Radiological imaging revealed erosions and collections suggestive of TB. An initial synovial biopsy yielded inconclusive results, initially suggesting rheumatoid arthritis (RA); however, further workup for RA was negative. Notably, after several days, cultures from the synovial biopsy confirmed Mycobacterium tuberculosis sensitive to rifampicin and isoniazid. A second course of ATT was initiated, resulting in complete symptom resolution.
Conclusion: This case underscores the diagnostic complexity of musculoskeletal TB, particularly when it mimics autoimmune conditions like RA. The initial misleading biopsy results highlight the importance of thorough, repeated investigations in chronic musculoskeletal complaints in TB-endemic regions. Prompt recognition and treatment of TB in such atypical presentations are crucial for preventing morbidity and preserving joint function.
"Yes, You're About to Meet Your Maker, but Did You Really See That Guy?": The Common Law and the Crawford Dying Declaration Exception
Authors: Moran David
Published: February 2025

I had the privilege of getting to see the creation of the Crawford v. Washington revolution up close. Less than two months after I argued my first case before the Court, it granted Jeffrey Fisher’s petition for writ of certiorari in Crawford. Richard Friedman, who had taught me Evidence when I was a student at Michigan a decade earlier and who is rightfully credited as the intellectual architect of the Crawford revolution, asked me in the fall of 2003 to help moot Jeff, who was also a Michigan alumnus. I went to Washington to hang out with Jeff and Rich (who authored an amicus brief and second-chaired Jeff) and watch the argument. I celebrated with Jeff and Rich the big victory in Crawford, in which the Court held that the Confrontation Clause guaranteed a criminal defendant the right to cross-examine witnesses who made “testimonial” statements that the prosecution wished to introduce at trial. I went back with Jeff and Rich two terms later, to sit with them at counsel’s table and watch them argue the consolidated cases of Hammon v. Indiana (Rich) and Davis v. Washington (Jeff), which helped flesh out the definition of a “testimonial” statement. But I write this short article not to express how cool it was to see the Court overturn decades of precedent and revive the Confrontation Clause right of a defendant to, well, actually confront the witnesses against them instead of allowing the prosecution to introduce out-of-court testimonial statements to prove guilt, even if those statements would be admissible under modern hearsay doctrine. Instead, I write to point out the unsurprising fact that, twenty years later, the Crawford revolution is not quite complete.
Study of titanium coatings characteristics obtained by magnetron sputtering of uncooled extended target
Authors: Kachalin G.V. , Medvedev K.S. , Zilova O.S. , Tkhabisimov A.B. , Ilyukhin D.I.
Published: February 2025

The results of the mechanical characteristics studies of titanium coatings obtained on steel samples at various magnetron discharge capacities are presented. It has been established that the coatings obtained in the power range of 7...10 kW have the best properties. А further increase in power leads to a decrease in the properties of coatings due to an increase in the proportion of vaporized low-energy atoms in the flow.
أثر الإمام علي بن الحسين بن الجنيد ال ارزي في كتاب العلل لابن أبي حاتم
Authors: Mukhtar Dr. Mustafa Muhammad Mahmoud Siedat
Published: February 2025

Research Topic:
A study of the influence of Imam Ali bin Al-Hussein bin Al-Junayd Al-Razi on the Book of Illnesses (Al-‘Illal) by Imam Ibn Abi Hatim. The majority of the content of this book consists of questions posed by Ibn Abi Hatim to his father and Abu Zar’ah Al-Razi regarding the flaws in hadiths. Ibn Abi Hatim specifically chose Ibn Al-Junayd to ask about seventeen instances, as opposed to his other teachers.
Research Objective:
The research aims to highlight the influence of Ibn Al-Junayd on the Book of Illnesses by compiling the questions Ibn Abi Hatim asked him, outlining his rulings, and comparing them to the opinions of other scholars, while presenting supporting evidence, giving preference when applicable, and clarifying the reasons Ibn Abi Hatim turned to him over his other teachers.
The research includes an introduction and two chapters:
The first chapter contains three sections:
The biography of Ibn Al-Junayd.
His expressions in explaining the flaws of hadiths.
The status of Ibn Al-Junayd with Ibn Abi Hatim, including two subsections: one on why Ibn Abi Hatim questioned his teacher, Ibn Al-Junayd, and the second on the disagreements between Ibn Al-Junayd and Imam Abu Hatim Al-Razi.
The second chapter contains the seventeen hadiths Ibn Abi Hatim inquired about from his teacher. The research relies on both inductive and critical methodologies in its approach.
Research Findings: The study concluded that the reasons for Ibn Abi Hatim questioning his teacher, Ibn Al-Junayd, were twofold:
Ibn Abi Hatim regarded Ibn Al-Junayd as a father figure after the passing of his own father, and therefore, asked him about the flaws in certain hadiths that he was unable to ask his father about. Ibn Abi Hatim recognized Ibn Al-Junayd’s expertise in hadith criticism, especially regarding the hadiths of Al-Zuhri and Malik. The research also highlighted Ibn Al-Junayd’s critical scholarly personality, demonstrated through his judgments on hadiths, presenting evidence for his views, and even disagreeing with a prominent figure like Imam Abu Hatim Al-Razi, sometimes preferring his opinion.
Keywords: The influence of Ibn Al-Junayd, Ibn Abi Hatim, Book of Illnesses.
Artificial intelligence in epilepsy education
Authors: Otu Walter , Khan Muhammad Usman , Javed Hafiz Talha , Sheikh Irfan S.
Published: February 2025

The emergence of artificial intelligence (AI) has revolutionized the landscape of epilepsy education and management by providing innovative solutions to the challenges of diagnosis, treatment, and patient care. This review evaluates the multifaceted role of AI in epilepsy, focusing on its impact on early diagnosis, seizure prediction, and the development of personalized treatment plans. AI tools, including machine learning algorithms and neural networks, have demonstrated significant promise in enhancing diagnostic accuracy and identifying epileptic patterns. This study explores various AI-driven educational platforms designed to improve the knowledge and skills of healthcare professionals, patients, and caregivers in managing epilepsy. Moreover, AI applications in wearable devices and mobile health platforms facilitate real-time monitoring and patient engagement, ultimately improving quality of life. However, integrating AI into clinical practice presents several challenges, including the need for large and high-quality datasets, interdisciplinary collaboration, data privacy, and ethical considerations. This review highlights these barriers while suggesting uniform protocols and frameworks for efficiently translating AI technologies into clinical practice. It underscores AI’s transformative potential in epilepsy care and education, advocating for ongoing research and collaborative efforts among technologists, clinicians, and educators, while emphasizing the importance of user-friendly design, regular assessments, and ethical considerations to maximize AI’s impact in this critical field.