bluuebunny/crossref_metadata_2025 huggingface dataset:
Cooperation of internal and external audit
Authors: Zabawa Gabriela
Published: February 2025

This article addresses the issue of cooperation between internal and external auditing, their similarities and differences, as well as the areas in which they complement each other. It presents the main assumptions and objectives of audits, their functions and shows the importance of integrating both of audits to increase company efficiency and thoroughly examine purposefulness and correctness of ongoing processes.Â Â
Physico-chemical characteristic of gorewada lake water in Nagpur, India
Authors: . Salahuddin
Published: February 2025

Â The proper control and appraisal of lake water condition and its purification is very crucial for appropriate care and management purposes. Water quality checking and investigation of the Gorewada Lake was implemented for numerous physico-chemical parameters in the month of June, 2016.These components are: (i) pH, (ii) Temperature, (iii) Electric Conductivity, (iv) Dissolved Oxygen, (v) Biochemical Oxygen Demand, (vi) Chemical Oxygen Demand, (vii) Total Phosphorous, (viii) Suspended Solid (ix) and Total Nitrogen respectively. The lake water is not suitable for drinking, bathing and other life supporting activity.Â Â
Gandhian Social work and his Constructive Programme: Contextualizing his Satayagrah for the peaceful world.
Authors: Mrinal Madhur , Kumar Upmesh
Published: February 2025

Paper highlights three Satyagragh of Gandhiji. Champaran Satyagragh peasant movement was first Satyagragh prevailing situation of indigo planters and role of Gandhiji. It also enumerates his philosophy for world peace through global programme of nonviolence and truthfulness, constructive programs and his concept of the social work education. It concludes Gandhian principles can transform Global world for peace through Professional social work education by incorporating the Constructive Program as suggested by Gandhi. His philosophy- sataygragh, ahimsa and swadeshi are well included in Constructive Programmes for making more relevant for peace today. The social work practitioner may feel teaching and training of Social work student should be based on Constructive Programme for making Sarvodaya Society and a Sarvodaya social Order as Gandhi enshrined in his philosophy.Â Â
The essence of fair remuneration in the light of new concepts of human capital management of an employees of the company
Authors: Leputa Natalia
Published: February 2025

In the following article the author discusses the basic terminology used to understand the concept of fair remuneration. It will address issues such as capital, human capital and the history of their creation, as well as the perception and distribution of remuneration by type and func-tion. Particular attention is paid to fair remuneration and ways of increasing an employee's human capital.Â Â
Alteraciones en las funciones ejecutivas de la población colombiana expuesta a eventos traumáticos ocasionados por el conflicto armado
Authors: Renteria González Wistong Stivin
Published: February 2025

Colombia ha sufrido un conflicto interno que ha durado más de 60 años, dejando un total de 8.775.884 víctimas directas del conflicto armado, cifras que van desde el año 1984 hasta el año 2018.

A raíz de esta situación el objetivo de esta investigación es realizar una revisión documental sobre los estudios publicadas en Colombia acerca del estado de las funciones ejecutivas de la población colombiana expuesta a eventos traumáticos ocasionados por el conflicto armado.

Para realizar la selección de las investigaciones se usaron los lineamientos plasmados en el diagrama de flujo PRISMA versión 2020, la búsqueda de investigaciones se realizó en las bases de datos, Dialnet, Scielo, Science Direct y Redalyc, concluyendo con una búsqueda en Google académico, quedando 14 documentos para la revisión.

Durante el análisis se identificó que las funciones ejecutivas presentan alteraciones producto de una o más experiencias traumáticas ocasionadas por el conflicto armado, en donde se resaltan alteraciones en la memoria de trabajo, la respuesta inhibitoria y la flexibilidad cognitiva.

Por otra parte, se observó que evaluar solo las funciones ejecutivas no da cuenta de las afectaciones globales que genera en los individuos el experimentar un trauma.
Biofilía y bienestar psíquico: Análisis cualitativo de la salud mental asociada a la vida en entornos naturales
Authors: Millán Otero Katy Luz , Villa Orrego Hernan Alberto , Garcés Sánchez Roxanne
Published: February 2025

El presente estudio tuvo como propósito comprender la percepción de salud mental tras la migración de personas desde áreas urbanas hacia entornos rurales del Oriente Antioqueño. Esta investigación se realizó por medio del enfoque cualitativo, específicamente desde el método de estudio de caso colectivo. Se involucró a 40 participantes de municipios como La Ceja, El Retiro, Concepción, Cocorná, Guarne y El Carmen de Viboral. Las técnicas empleadas incluyeron entrevistas semiestructuradas, observación participante y grupos focales. En los resultados se evidenció que la tranquilidad, el bienestar y la actividad física al aire libre, fueron algunos de los factores que más motivación generaron. De otro lado, la seguridad en contraste con el caos de la ciudad, el desarrollo de hábitos de vida saludable y la reducción del estrés e irritabilidad estuvieron asociados a las condiciones de la satisfacción residencial. Finalmente, los participantes desean vivir con las bondades que brinda la naturaleza, pero sin renunciar a las comodidades de la ciudad en materia de equipamientos comunitarios. Se discute el papel que juega la naturaleza y las zonas verdes en el bienestar tanto psicológico, físico y emocional del ser humano.
Budoucí občanský zákoník a rodinné právo
Authors: Zuklínová Michaela
Published: February 2025

The Civil Code is now, as a result of the Government Resolution, currently in preparation as the forth in sequence in the territory of this country. It shall again include Family Law. The author of the contribution first deals with the issues related to the system of organization of the new Code with special attention paid to Family Law including its position and order assumed in the Code. The author gives arguments in support of placing the whole chapter of Family Law as the first one following the initial (the so called general) part, whose placing she considers to be justified. The following part of the contribution is devoted to the selected concepts of Family Law, i.e. those which can be considered as most significant from the point of view of affecting the law now in force. (1) Henceforward only the civil form of marriage is to be permitted (or shall be relevant in respect of the status of the parties). For this purpose, it appears necessary to newly regulate the celebration of marriage, i.e. especially to determine properly and in compliance with Constitution, the authority which shall be the subject-matter and local authority to receive the declarations by the bride and bridegroom while the appointment of the solemnizing officer, which is now almost the crucial point of the regulation, shall be substantially suppressed. The new regulation purports to strengthen legal certainty in the matters of status. (2) The current regulation deals with the issues of adverse consequences of defects in the declarations by the bride and bridegroom as well as in the process of solemnization in a way that is unparalleled in the world. The new regulation should, therefore, come back to the continental legal standards and it should do so in not only determining which defect should be sanctioned, but also in the legal formulation of the adverse impact of the defects on the marital status. (3) Another purpose (primary one as to its importance) of the new Family Law is enhancing the minors’ protection, especially in the light of international covenants of our country. This fundamental trend should come to be reflected in the approach to both adoption and other forms of substitutional care. Therefore all these concepts will be (in their contents, too) re-defined to approach the European standards: the stress placed upon the actual child care and not the acceleration of the creation of the new legal status), improving the approach to the relationship between the biological parent and the child (it is the biological family that should be the first to be assisted and only then other options may be elected), suppressing the anonymity of adoption, the currently supreme position of the candidate for adoption, the exclusive decision-making power of the court, proper proceeding without haste. In the individual child care, the concept of placing a child in a person’s care should always have the priority, and only then, subject to circumstances, the authorities could proceed either towards adoption or foster care.
K rekodifikaci mezinárodního práva soukromého
Authors: Kučera Zdeněk
Published: February 2025

This study presents the author’s ideas and suggestions concerning the regulation of private international law and the law of international procedure in a new Act to be prepared. As the Act of 1963, now in force, the new Act shall contain the conflict rules and the rules of the law of international procedure. It shall be a complete codification concentrating in one Act the largest number as possible of the rules of private international law including the rules now contained in other Acts. Contrary to the system of the Act of 1963, now in force, another system of the Act is recommended. In the general part of the Act the general rules of the law of international procedure shall precede the general rules of the law of conflict of laws. In the part of the Act containing the rules for particular categories of private-law relations the rules regulating the jurisdiction of Czech tribunals shall precede the conflict rules for the respective category of relations. These conflict rules can be, when a special regulation is needed, followed by the provisions concerning the recognition and enforcement of foreign decisions in the respective category of cases. The regulation of some questions till now not regulated in the Act of 1963, now in force, is proposed. The study recommends the formulations concerning the application of the so-called mandatory rules (lois d’application immediate), the solution of the problem of classification, a new formulation of the solution of renvoi and transmission, the solution of preliminary questions. In the part containing rules for particular categories of private-law relations, in some cases the reconsideration of some connecting factors is mentioned, e.g., for the establishment and extinction of rights in rem concerning the movables transferred on the base of a contract, in some cases of relations of family law, of the law of succession. The differentiation of connecting factors for particular categories of compensation for damage is also recommended. It is also recommended to insert the regulation of the bankruptcy cases with international element and a special part dealing with the arbitration procedure in international relations and the recognition and enforcement of foreign arbitral awards. The new Act shall accept the solutions of the Convention of Rome on the Law Applicable to Contractual Obligations.
Bringing Tara Home: Can International Law Help Sri Lanka to Return the Most Revered Cultural Object from Britain?
Authors: Amarasinghe Punsara
Published: February 2025

Sri Lanka underwent series of colonial domination under European powers and the cultural heritages revered by the inhabitants were at perilous risk at the hands of the colonizers. Tara Devi is an icon embodying the religious and cultural uniqueness of the Buddhist civilization of Sri Lankan from the Anuradhapura era. Tara Devi was taken away during the early part of the British administration and now it is being kept in the British museum in London. This paper in an attempt in tracing the colonial injustice of the British from an international law perspective, which equally reflects the parochial realities of the prevailing eurocentrism. While tracing British claim for keeping Tara Devi at their possession, this article takes into the account of the enraging narratives international law in a decolonized context. The results arising from this work unfolds the hard realities that encompasses the Global South in attaining the justice under international legal framework.
AI and early diagnostics: mapping fetal facial expressions through development, evolution, and 4D ultrasound
Authors: Andonotopo Wiku , Bachnas Muhammad Adrianes , Dewantiningrum Julian , Adi Pramono Mochammad Besari , Stanojevic Milan , Kurjak Asim
Published: February 2025

The development of facial musculature and expressions in the human fetus represents a critical intersection of developmental biology, neurology, and evolutionary anthropology, offering insights into early neurological and social development. Fetal facial expressions, shaped by Cranial Nerve VII, reflect evolutionary adaptations for nonverbal communication and exhibit minimal asymmetry in universal expressions. Advancements in 4D ultrasound imaging and artificial intelligence (AI) have introduced innovative methods for analyzing these movements, revealing their potential as diagnostic tools for neurodevelopmental disorders like Bell’s Palsy and Ramsay Hunt Syndrome before birth. These technologies promise early interventions that could significantly improve neonatal outcomes. By integrating imaging, AI, and longitudinal studies, researchers propose a multidisciplinary approach to establish diagnostic criteria for fetal facial movements. However, translating these advancements into clinical practice requires addressing ethical and practical challenges, refining imaging and AI methodologies, and fostering interdisciplinary collaboration. The review highlights the universality of fetal expressions while emphasizing the importance of distinguishing typical variability from pathological markers. In conclusion, these findings suggest transformative potential for maternal-fetal medicine, paving the way for proactive strategies to manage neurodevelopmental risks. Focused research is essential to fully harness these innovations and establish a new frontier in perinatal science.
Targeting and double accountabilities of action in interaction
Authors: Nishizaka Aug , Hayano Kaoru
Published: February 2025

This study documents the mechanism by which a speaker accomplishes targeting the current turn at an unselected recipient; it does so by reference to what we will call participants’ differential relationships to a referent. Several video recordings of Japanese ordinary conversations are examined with the methodology of conversation analysis. The findings show that the differential relationships are resources for generating double accountabilities of action; the targeted turn implements one action for the selected recipient and another for the target recipient. The use of differential relationships also provides publicly witnessable grounds for the distribution of turn-allocation techniques. We argue that targeting is a rich domain in which turn allocation and the accountability of action intersect.
Ansiedad y Florecimiento en hombres homosexuales y bisexuales: Un enfoque comparativo
Authors: Carranza Benites Renzo
Published: February 2025

El bienestar psicológico y la salud mental en la comunidad LGBTQ+ han captado mayor interés en la investigación. Este estudio se centra en el florecimiento y la ansiedad en hombres homosexuales y bisexuales, destacando diferencias y similitudes en sus experiencias. Se observó que los bisexuales presentan mayores tasas de depresión y ansiedad, influenciadas por la bifobia y la discriminación. La investigación, realizada con 480 hombres peruanos, reveló una relación inversa entre ansiedad y florecimiento, siendo los bisexuales quienes muestran mayores niveles de ansiedad y menores de florecimiento. Estos resultados sugieren que un alto bienestar psicológico actúa como factor protector contra la ansiedad, subrayando la importancia de un entorno de apoyo. Identificar estas diferencias permite desarrollar estrategias efectivas para apoyar a hombres homosexuales y bisexuales, promoviendo así un bienestar integral y contribuyendo a informar políticas que aborden sus necesidades específicas.
Decoding Visual Spatial Attention Control
Authors: Meyyappan Sreenivasan , Rajan Abhijit , Yang Qiang , Mangun George R , Ding Mingzhou
Published: February 2025

In models of visual spatial attention control, it is commonly held that top-down control signals originate in the dorsal attention network, propagating to the visual cortex to modulate baseline neural activity and bias sensory processing. However, the precise distribution of these top-down influences across different levels of the visual hierarchy is debated. In addition, it is unclear whether these changes in baseline neural activity directly translate into improved performance. We analyzed attention-related baseline activity during the anticipatory period of a trial-by-trial voluntary spatial attention task, using two independent fMRI datasets, and two different analytic approaches. First, as in prior studies, univariate analysis showed that covert attention significantly enhanced baseline neural activity in higher-order visual areas contralateral to the attended visual hemifield, while effects in lower-order visual areas (e.g., V1) were weaker and more variable. Second, in contrast, multivariate pattern analysis (MVPA) revealed significant decoding of attention conditions across all visual cortical areas, with lower-order visual areas exhibiting higher decoding accuracies than higher-order areas. Third, decoding accuracy, rather than the magnitude of univariate activation, was a better predictor of a subject's stimulus discrimination performance. Finally, the MVPA results were replicated across two experimental conditions, where the direction of spatial attention was either externally instructed by a cue or based on the participants free choice decision about where to attend. Together, these findings offer new insights into the extent of attentional biases in the visual hierarchy under top-down control, and how these biases influence both sensory processing and behavioral performance.

Significance StatementAttention can be deployed in advance of stimulus processing. Understanding how top-down control of attention facilitates the processing of the attended stimuli and enhances task performance has remained a longstanding question in attention research. Here, applying multivariate pattern analysis (MVPA) to fMRI data, we showed that throughout the entire visual hierarchy including the primary visual cortex, there exist distinct neural representations for different attended information in anticipatory visual spatial attention, and the distinctiveness of these neural representations is positively associated with behavioral performance. Importantly, the MVPA findings were consistent across two experimental conditions where the direction of spatial attention was driven either by external instructions or from purely internal decisions.
DISMANTLING POLITICAL DYNASTIES: TRANSFORMATION OF PANCASILA DEMOCRACY IN THE CONTEXT OF FAMILY POWER
Authors: Tanuri Abufatih  , Asep Maskur  , Subhan Alba
Published: February 2025

Dynastic politics is still a dominant phenomenon in Indonesia's political system, showing that political power often belongs to certain families. In this context, Pancasila democracy continues to transform, facing major challenges in maintaining pluralism and justice in the political process. This study aims to investigate the impact of political dynasties on the transformation of Pancasila democracy and explore efforts that can be made to overcome the dominance of family power in politics. This research uses a qualitative approach with content analysis techniques to examine related literature, empirical data, as well as interviews with political and civil society experts who have direct experience with political dynasties. The results showed that political dynasties had a significant impact on Pancasila democracy, reducing people's political participation, reducing pluralism, and causing injustice in the distribution of power. However, the research also revealed several civil society initiatives and policy reforms that might reduce the dominance of political dynasties and strengthen Pancasila democracy. The implication of this research is the need for joint efforts from governments, civil society, and international institutions to address the problem of political dynasties in Indonesia's political system. Policy reforms are needed that support inclusive political participation, reduce wealth gaps and access to political power, and strengthen political oversight and accountability mechanisms to ensure that Pancasila democracy continues to function in accordance with its principles.
The Impact of Balanced Data Techniques on Classification Model Performance
Authors: Pardede Jasman , Dika Prasetia Pamungkas
Published: February 2025

Purpose: The aim of this study is to examine the impact of balanced data techniques on the performance of classification models.
Methods: To balance the imbalanced dataset, several resampling techniques are employed: The Synthetic Minority Oversampling Technique (SMOTE), Borderline-SMOTE (B-SMOTE), and SMOTE and Edited Nearest Neighbors (SMOTE-ENN). Classification is then performed using both balanced and unbalanced datasets to evaluate the impact of resampling techniques on classification model performance.
Result: This study proposes the SMOTE, B-SMOTE, and SMOTE-ENN techniques for generating synthetic data. Experimental results showed that re-sampling can improve model performance on KNN, Naive Bayes, and Decision Tree. The best-balanced data technique is the SMOTE-ENN. The second best is B-SMOTE, and the last is SMOTE. If compared to the unbalanced dataset, the SMOTE technique encourages increasing the performance of Accuracy, Precision, Recall, F1-Score, G-mean, and Curve-ROC respectively by 4.79%, 35.89%, 35.32%, 35.63%, 46.94%, and 34.89%, respectively on DT method. The B-SMOTE technique on the DT method improves the performance of Accuracy, Precision, Recall, F1-Score, G-mean, and Curve-ROC respectively by 5.62%, 36.45%, 35.88%, 36.19%, 47.40%, and 35.46% if compared to the unbalanced dataset. The SMOTE-ENN technique improves the performance of Accuracy, Precision, Recall, F1-Score, G-mean, and Curve-ROC respectively by 8.11%, 34.53%, 43.25%, 41.63%, 62.85%, and 42.91% if compared to the unbalanced dataset.
Novelty: Based on the experiment results, the best-balanced data technique is the SMOTE-ENN. The SMOTE-ENN technique improves the performance of Accuracy, Precision, Recall, F1-Score, G-mean, and Curve-ROC.
Modified Mixed Effects Random Forest in Small Area Estimation Using PCA and Rotation Forest with Correlated Auxiliary Variables
Authors: Ananda Rizki , Notodiputro Khairil Anwar , Aidi Muhammad Nur
Published: February 2025

Purpose: The per capita expenditure data in Jambi Province, Indonesia have been plagued with severe multicollinearity problems. To address the issue, this study developed an effective small area estimation (SAE) method, which is essential for formulating comprehensive regional development policies in Jambi Province. By modifying the mixed effects random forest (MERF) method, we introduced PCA-MERF (which applies principal component analysis prior to MERF) and MERoF (which replaces the standard random forest with rotation forest) to handle multicollinearity more effectively. Data from the National Socioeconomic Survey (Susenas) in March 2021 and Village Potential (PODES) in 2021 were utilized. The methods were evaluated using metrics such as root mean square error (RMSE), relative root mean square error (RRMSE), coefficient of variation (CV), and their ability to capture random area effects. The random effect block (REB) bootstrap approach was employed to obtain MSE estimates for evaluating area-level estimate quality.
Result: The results showed that MERoF outperformed both MERF and PCA-MERF, particularly in unit-level (village) estimation. Additionally, MERoF demonstrated superior capability in capturing variation between subdistricts compared to MERF and PCA-MERF. PCA-MERF performed better than MERF and MERoF at the area level (subdistrict). All three methods showed acceptable performance with RRMSE and CV values ranging between 8% and 10%, indicating precise and reliable predictions for per capita expenditure in small areas. These modifications to MERF prove effective and advantageous for small-area estimation in datasets with significant multicollinearity.
Novelty: This research introduces a novel semi-parametric, tree-based SAE approach, enhancing the precision of per capita expenditure estimates and supporting more informative regional policy decisions, thus filling a gap in current SAE methodologies.
Hybrid Quantum Representation and Hilbert Scrambling for Robust Image Watermarking
Authors: Sari Christy Atika , Abdussalam Abdussalam , Rachmawanto Eko Hari , Islam Hussain Md Mehedul
Published: February 2025

Purpose: This work aims to apply Quantum Hilbert Scrambling to enhance the security and integrity of image watermarking without affecting visual quality degradation. Further conception of the surveyed methods could result in a very good solution to conventional methods of watermarking in solving some problems of digital image security and integrity with new concepts of quantum computing.
Methods: The paper reviews Quantum Hilbert Scrambling, whose computational complexity is . The process involves encoding the image into a quantum state, permuting qubits by the Hilbert curve, and embedding a watermark using quantum gates.
Result: The quantitative performance evaluation metrics, like Peak Signal to Noise Ratio (PSNR) and Structural Similarity Index (SSIM), have shown high Peak Signal to Noise Ratio (PSNR) values from 56.13 dB to 57.87 dB and Structural Similarity Index (SSIM) from 0.9985 to 0.9990, correspondingly. This justifies the fact that the quality degradation is very slight and the fine details of the structure are well maintained.
Novelty: The proposed method uniquely integrates quantum computing with traditional watermarking steps for a secure and effective approach in digital watermarking. Further development should focus on improving the quantum circuit regarding computation efficiency, extending the applicability of the method to a wide range of images, and various situations in watermarking, and finding hybrid approaches by combining quantum and classical approaches towards better performance and scalability.
Comparison of biomethane production process using two different types of reactors from dairy wastewater
Authors: Ocaña Lopez M. E. , Soria Ortiz A. I. , Rios Gonzalez L. J. , Osorio Hernandez E. , Perez Rodriguez M. A. , Rodriguez de la Garza J. A. , Moreno Davila I. M. M.
Published: February 2025

The production of biomethane (Bio-CH4) from dairy wastewater was evaluated using two types of reactors: an upflow anaerobic sludge blanket (UASB) reactor and a batch reactor, using dairy wastewater, anaerobic sludge (as inoculum), and Opuntia imbricata (as biomass substrate). The latter is a cactus known as coyonoxtle and is considered an invasive plant in northern Mexico. The wastewater was characterized in accordance with NOM-001-SEMARNAT-2021. The UASB reactor having a capacity of 4.5 L, was charged with 350 mL of sludge, 24 g of Opuntia imbricata, and 3.5 L of dairy wastewater (20.1 g/L of O2) at pH 7.0. Batch reactors with a volume of 120 mL, were charged with 72 mL of dairy wastewater (20.1 g/L of O2), 8 mL of sludge, and 3 pieces of O. imbricata. The results of the UASB reactor: Total specific production was 21.2 mmol of Bio-CH4 and an efficiency in the degradation of organic matter of 70.7%, with a hydraulic retention time of 4.8 h and a total duration of 720 h. For the batch reactors: Total specific production was 11.6 mmol of Bio-CH4 and 97.95% efficiency in the removal of organic matter, with a total duration of 192 h. The results showed an economic, efficient and sustainable way of producing Bio-CH4.
Processor group determination for the effective processor capacity usage
Authors:   NTUU "KPI", Dmytrenko О.A. , Skulysh M.A. ,   NTUU "KPI"
Published: February 2025

The optimization of resource utilization in cloud systems is a critical endeavor given the widespread adoption of cloud technology and its user-friendly nature. Cloud system developers are continuously innovating to deliver fast application performance, leveraging advancements such as serverless architectures and proprietary databases. The introduction of Docker and Kubernetes has further facilitated performance testing in the cloud, resulting in a significant uptick in cloud usage. Considering the substantial investments made in cloud technology, it is imperative to explore strategies for optimizing resource allocation and utilization This article delves into the essential metrics of computer performance that can be both measured and influenced. These metrics include channel capacity, latency assessment, memory types (operational and non-volatile), processing power, and core count. Understanding and effectively managing these metrics are crucial for maximizing the efficiency of cloud systems. The proposed algorithm outlined in the article aims to identify complementary instances of microservices that can efficiently share server resources. Initially, microservices are categorized into instances with similar capacity levels, forming equivalence classes based on their resource usage patterns. Within these classes, instances are further sorted based on their resource utilization amplitudes. The goal is to pair instances with significant differences in resource utilization with others exhibiting similar amplitudes to optimize resource allocation. Additionally, instances with lower resource utilization may also be combined to maximize resource efficiency. The algorithm iteratively searches for compatible microservice combinations within these equivalence classes until suitable matches are found. Throughout the process, statistics of attempted combinations are maintained to inform future optimization strategies.
Effect of Glycerin and Urea on the Synthesis of Potato and Cassava Starch-Based Biopolymers: Hardness, Micrography, and Thermogravimetric Analyses
Authors: Quintana Mariño Daniel Nicolas , Sanabria Chaparro Diana P. , Salazar Hugo Felipe , Castro Silva Hugo Fernando , Paredes Roa Ricardo Alfonso
Published: February 2025

Petroleum-derived polymers used in everyday products generate large amounts of waste and negative environmental impacts due to their slow decomposition. To address this issue, other options have been studied, such as biopolymers based on starch, a polysaccharide formed by chains of amylose and amylopectin that can be linked together by heat and water to form a polymeric matrix similar to petroleum-derived plastics. In this study, glycerin and urea were used as plasticizing additives to improve the flexibility of biopolymers. The objective was to expand knowledge on biopolymers and their potential applications as an alternative to petroleum-derived plastics. A quantitative and qualitative factorial experimental design was implemented which consisted of three factors: the percentage of starch type, the percentage of plasticizer type, and the total percentage of plasticizers. Once the biopolymers were synthesized, they were characterized through thermal stability tests using thermogravimetric, hardness, and micrography analysis. The results indicated that glycerin increases the flexibility of the biopolymer, while urea increases its hardness. The working temperature of the biopolymer is below 130 °C, causing no disintegration of the material. In addition, it was identified that the presence of gas inclusions, both internal and superficial, can significantly affect the mechanical properties of the biopolymers. In conclusion, it was demonstrated that starch-based biopolymers with plasticizing additives have the potential to become a viable and sustainable alternative to petroleum-derived plastics in everyday products.
Investigating the Effects of Cutting Methods for Aluminum Metallic Foams
Authors: BAKIRCI Altug , SIGIRTMAC Tayfun , CAKIR Mustafa Cemal , UGUZ Agah
Published: February 2025

The quality of foam metal materials, which are commonly used in industrial applications due to their unique properties, increasingly relies on secondary processing. Metal foams are produced as plates or in the desired shape via direct or indirect foaming. Given their intended use, the primary challenge lies in determining how to cut them with the necessary precision and join them with sufficient strength. However, the most difficult aspect is cutting them in the required shapes and combining them with fixed or removable securing mechanisms. This work involved cutting two sample types: a 10 mm thick AlMgSi foam with a density of 0.5 g/cm³, using a laser cutter, and a 19 mm thick AlMgSi sandwich structure with a 1 mm thick aluminum outer plate via wire electric discharge machining (WEDM). In addition, the results of manual cutting and angle grinding, which are often utilized in production, were analyzed through scanning electron microscopy. Under certain suboptimal conditions, laser cutting caused aluminum to dissolve into the cavities and form burrs beneath the cutting edge. In contrast, when accurate and undistorted cellular architecture is essential, WEDM is very efficient, even though it is 200 times slower than laser cutting. Hand-sawing caused cellular fractures and frequent dispersion, so it is suitable for applications that do not necessitate accuracy.
Inter-Laboratory Testing Program for the Physical Characterization of Guamo Sand
Authors: Ruge Juan Carlos , Molina-Gómez Fausto , Olarte María C. , Camacho-Tauta Javier , Reyes- Ortiz Óscar , Larrahondo Joan M. , Vacca Hermes A. , Prada Luis F. , Ramos-Cañón Alfonso , Alvarado Yesid A. , Reyes Fernando J. , Cabrera Miguel A. , Caicedo-Hormaza Bernardo , Naranjo José S. , Otálvaro Iván F. , Gómez-Jiménez Alejandra , Galvis Mayra A. , Carmona July E. , García Cesar A. , Álvarez Allex E. , Díaz Edgardo J. , Colmenares Julio E. , Reina Carlos R. , Mendoza Cristhian C. , Gil Diego F. , Espinosa Laura M. , Martínez-Rojas Eliana , Bastidas Juan G. , Rojas Jhan P.
Published: February 2025

In soil testing, assessing physical properties is essential for accurately characterizing sands. However, testing results can vary depending on the experimental procedures used and their implementation. A round-robin exercise facilitates the simultaneous analysis of the reproducibility and replicability of the standard methods used to characterize the properties of a specific material. This paper presents the outcomes of the first inter-laboratory testing initiative (i.e., a round-robin exercise) aimed at assessing the results variability of the physical characterization of a sandy soil. Guamo sand, widely utilized in local research and engineering projects in Colombia, was the focus of this study. 11 national academic laboratories participated in the program, conducting seven replicates of grain size distribution, solids specific gravity, and maximum and minimum void ratio tests. The data provided by all participants were analyzed and interpreted using statistical techniques. The results revealed significant differences between the data collected for each physical property, which can be attributed to the intrinsic variability of this sand’s natural origin and to the use of diverse testing procedures. These comparisons offer valuable practical insights into the discrepancies between the testing methodologies employed by the participants for soil characterization, and they constitute a comprehensive database for future research or practical applications.
TDAH NO AMBIENTE ESCOLAR: DESAFIOS E ESTRATÉGIAS PARA INCLUSÃO UTILIZANDO A GAMIFICAÇÃO
Authors: Andrade Williana , Rodrigues de Carvalho Paulo Victor , Eloi de Almeida Verônica
Published: February 2025

Esta pesquisa questiona a respeito do seguinte problema: como as estratégias pedagógicas fundamentadas em tecnologias digitais podem contribuir na disciplina de Ciências para o processo de aprendizagem dos alunos com TDAH do ensino fundamental? Acredita-se que: o uso da gamificação como estratégia pedagógica pode colaborar não apenas para o desenvolvimento cognitivo dos alunos com TDAH do ensino fundamental dos anos finais, mas para aulas de Ciências mais prazerosas e lúdicas. Este artigo objetiva refletir a respeito da gamificação como estratégia pedagógica lúdica para o ensino de Ciências a alunos com TDAH do ensino fundamental dos anos finais com vias a otimização da aprendizagem e engajamento desses estudantes. A metodologia da pesquisa em profundidade destaca-se como metodologia estruturante desta pesquisa. Para coleta dos dados foi utilizada a técnica de roteiro de entrevista semiestruturada com questões abertas. Já para a análise de dados foi utilizada a técnica de análise do conteúdo de Bardin. Por fim, compreendeu-se os principais problemas encarados pelos professores e estudantes com TDAH do ensino fundamental dos anos finais acerca da inclusão. Demonstrou-se que a gamificação pode ser uma ferramenta lúdica e estimulante, capaz de promover o engajamento e a inserção dos estudantes com TDAH na escola. E, finalmente, confirmou-se que as estratégias pedagógicas como a gamificação podem incentivar e facilitar o processo ensino/aprendizagem desses discentes. Para além, esta pesquisa foi elaborado um produto tecnológico – um ebook direcionado a professores de Ciências com uma aula sobre Fontes de Energia empregando a gamificação.
Conocimiento, uso y prácticas de manejo de la pitaya dulce Stenocereus thurberi en Baja California Sur
Authors: Bravo-Avilez David , Rendón-Aguilar Beatriz
Published: February 2025

Antecedentes: Stenocereus thurberi es una cactácea de importancia biocultural, fuera del área mesoamericana. La información sobre usos, prácticas de manejo e importancia económica es escasa.
Preguntas: ¿cuál es el conocimiento, usos y formas de manejo de S. thurberi en un área fuera de Mesoamérica, como es Baja California Sur? y ¿cuál es el papel que juega esta especie en la economía local y regional?
Especies de estudio: Stenocereus thurberi
Sitio y años de estudio: Baja California Sur, México. 2023-2024.
Métodos: Se aplicaron 128 entrevistas semi estructuradas a pobladores de 53 localidades; los datos obtenidos se analizaron con estadística descriptiva.
Resultados: Se registraron nueve categorías de uso, siendo las más importantes comestible, construcción y combustible. Los entrevistados sudcalifornianos reconocen 15 variedades, siendo la roja y la blanca las más importantes; manejan a la pitaya dulce en tres formas: silvestre, manejo in situ y cultivo. Las prácticas de manejo son similares a las reportadas para Mesoamérica. Las poblaciones silvestres están sujetas a prácticas agrícolas similares a aquellas de huertos mesoamericanos. El manejo in situ es similar al que se practica en el centro y sur de México. No hay huertos modernos, pero hay evidencia de poblaciones cultivadas, posiblemente abandonadas de la época misional. La venta de los frutos permite obtener ingresos económicos.
Conclusiones: La pitaya dulce en BCS satisface diversas necesidades debido al uso diversificado de sus estructuras y representa un beneficio económico. El manejo es similar al de la región mesoamericana. Se sugieren estudios para analizar posibles procesos de domesticación.
Development of Video Games for Therapeutic Purposes
Authors: Parga González Adrián , Rodríguez Alvarado Francisco Javier , Martínez Díaz Raúl , de Santos Dorrego Paula
Published: February 2025

In order to bring technology closer to care centers for people with disabilities, a variety of interactive experiences have been designed, such as an animated 2D interactive story and a puzzle video game for cognitive stimulation, as well as several 3D models and animations.
These applications were designed with the therapeutic goal of stimulating and enhancing different abilities in people with disabilities, focusing on upper limb mobility, attention, and sequencing of daily life activities.
These applications were developed using different technologies such as Unity, AutoDesk Maya, Davinci Resolve, and Clip Studio, which not only helped create the games but also enriched them with customized video and audio for accessibility.
The Beginnings of the Organisation of Polish Historical Science in Great Britain after World War II
Authors: Zuziak Janusz
Published: February 2025

After the defeat of September 1939, a large number of Polish historians found themselves, together with the army, scattered abroad. They lost their previous academic research base, aids and equipment, book collections, notes, etc. As early as the autumn of 1939, the first attempts to organise representatives of this group were made in allied France. The fall of France and the necessity to evacuate to Great Britain meant that a new stage of wartime activity began here for the Polish civilian and military leadership, the organisation of the army and the organisation of the community of Polish historians. The first institutions were established soon after arrival in the United Kingdom. After the end of the war, a number of Polish historians decided to remain abroad and the process of establishing academic institutions began, giving rise to Polish historical science in the UK. The General Sikorski Historical Institute was the first institution to be established, and other institutions soon followed, including the Piłsudski Institute in London, the Polish Underground Movement Study Trust, the Polish Historical Society in Great Britain, the Polish University Abroad, and the Polish Library.
Poetic oppositions in Fatimid Arabic literature: Ibn Hani’s Pastiche of Al-Mutanabbi as a model
Authors: Alomari Salameh Mohammad Rida
Published: February 2025

This study examines the nature and effectiveness of poetic oppositions in Fatimid literature through an analytical comparison of Ibn Hani’ Al-Andalusi's praise of the Fatimid caliph Al-Muizz li Din Allah and Al-Mutanabbi's praise of Saif al-Dawla Al-Hamdani. This comparative analysis highlights the distinctive ways Ibn Hani' adapted Al-Mutanabbi's poetic style to suit his ideological and political context, revealing several critical insights into the interplay of influence and innovation. While the Fatimid rulers valued poetry as a political and ideological tool, Ibn Hani’s poetry diverges from Al-Mutanabbi’s in its structure and thematic emphasis. Rather than following Al-Mutanabbi’s journey-focused, introspective approach, Ibn Hani’ emphasizes Fatimid accomplishments and authority over Egypt, reflecting ideological convictions rather than personal ambition. Both poets employ artistic exaggeration, elevating their patrons to near-mythical status; however, Ibn Hani's praise resonates with a deeper commitment to affirming the Fatimids’ legitimacy. Ultimately, this study underscores how opposition poetry served as a medium of ideological expression in Fatimid literature, positioning Ibn Hani’ not only as a poet but as an advocate for the Fatimid state’s political and religious narrative.Keywords: Ideological Poetry; Poetic Influence; Literary Comparison; literature
Aulas interdisciplinares:
Authors: Cortés Saavedra David Fernando
Published: February 2025

La presente obra presenta una serie de recursos, ejercicios y proyectos de enseñanza de FLE (por sus siglas en en francés Français Langue Étrangère) y EFL (por sus siglas en inglés, English as a Foreign Language) que integran el aprendizaje por contenidos con la metodología del pensamiento por sistemas. Los contenidos acá desarrollados se inscriben en el marco de las prácticas interdisciplinares en la enseñanza de las lenguas extranjeras (PIELE) y proponen robustecer dicho acercamiento mediante la propuesta sistémica. Los cuatro capítulos que componen esta obra se centran en las posibilidades que ofrecen las artes visuales, el pensamiento económico, las humanidades digitales y la meditación como ejes sobre los que se despliegan los contenidos lingüísticos en lenguas extranjeras, inglés y francés.
Narrar o visível
Authors: Velloso Luciana Mendes
Published: February 2025

O presente artigo é uma breve reflexão sobre parte do processo da pesquisa de pós-doutorado realizada junto ao grupo de pesquisa GIS - Le Sujet dans la Cité da Université Sorbonne Paris-Nord, que se desenvolveu com aporte do campo teórico decolonial em diálogo com o campo da pesquisa biográfico-narrativa.  O objeto central foi a arte e seus atributos estético-expressivos, político-sócio-cultural-históricos com recorte para a produção estética de três artistas negros/as contemporâneos do Brasil, África e da afro-diáspora. Buscou-se refletir sobre a dimensão constitutiva dos processos de individuação, subjetivação e socialização dos sujeitos, seu poder de agir, como são ancorados pela narrativa biográfico-visual e sua força poético-discursiva.  Nesta ótica, a investigação centrou-se na maneira como as artes plásticas e visuais corroboram para o construto biográfico individual e coletivo, como propõem e articulam questionamentos sobre racismo e racialidade, memória, herança e violência colonial, subalternidade, apagamento, origem, fronteira, invisibilidade e etc., a partir das obras dos artistas, elencadas em seu escopo.
DIFFERENCES INDICATORS IN CLINICAL EPIDEMIOLOGY AND LABORATORY FOR SUSPECT DENGUE HEMORRHAGIC FEVER IN KEBUMEN DISTRICT 2023
Authors: Susanto Nugroho , Ratna Hidayani Wuri , Subaeti Tri
Published: February 2025

Background: The study in Asian and American-based surveillance data between Oct 18, 2011, and Aug 4, 2016 required 7428 patients with an estimated 2694 (36%) diagnosed laboratory-confirmed dengue, 2495 (34%) non-dengue and 2237 (30%) not inclusion criteria. The clinical signs and suspected dengue symptom address a few other diseases, thus laboratory confirmatory is best solution for diagnosis of dengue. Purpose: To determine the difference between clinical epidemiological and laboratory diagnosis of dengue hemorrhagic fever in Kebumen District. Methods: The study design was cross-sectional with 395 samples of suspected dengue disease during the 2023 period, such as DHF and DD in Kebumen District area health services. The DHF diagnostic was confirmed with positive laboratory test and studied to see differences of the clinical epidemiology and laboratory data. The data collection was carried out by reviewing medical documents from health centers and hospitals. Data were analyzed with chi square test and independent t test. Results: Clinical indicators proportion was higher for fever, 95.40% and much lower for bleeding 13.20%. The dominant contribution significant for clinical epidemiology indicator of DHF is muscle pain compared to bleeding and rash. The laboratory indicator   for platelet is low, hemoglobin normal and hematocrit   normal. The variable contributing significantly for DHF is platelet (β = 0.19) and comparison of hemoglobin (β = -0.09) and hematocrit (β = -0.06). Conclusion: Clinical indicators of DHF are higher for fever (95.40%), with muscle pain being the dominant factor. Laboratory indicators include low platelet count and normal hemoglobin and hematocrit.