bluuebunny/crossref_metadata_2025 huggingface dataset:
Keberhasilan Konseling Berbasis Digital: Kajian Systematic Literature Review
Authors: Ammi Prayoga  , Bakhrudin All Habsy  , Budi Purwoko
Published: February 2025

Pertengahan tahun 2024, populasi penduduk Indonesia telah mencapai 281.603.800 jiwa, jumlah tersebut berbanding lurus dengan jumlah pengguna internet yang mencapai 278,6 juta. Perkembangan teknologi telah memunculkan banyak layanan konseling digital baik berbasis website ataupun aplikasi, hal tersebut terjadi salah satunya karena adanya kebutuhan dari masyarakat untuk bisa melakukan konseling dimanapun dan kapanpun. Cybercounseling dan produk turunannya merupakan upaya untuk mengadaptasi praktik konseling di era digital. Penelitian ini menggunakan metode penelitian kualitatif dengan jenis kajian literatur model PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) untuk menganalisis 20 artikel yang diperoleh dari google scholar. Temuan menunjukkan bahwa konselor harus memiliki pemahaman yang komprehensif tentang kekuatan dan kelemahan konseling berbasis digital. Permasalahan yang mendesak, waktu yang terbatas dan perangkat daring yang tersedia, menjadikan konseling digital menjadi pilihan yang layak. Namun, untuk kasus psikologis yang lebih berat, konseling daring berfungsi sebagai pelengkap konseling tatap muka.
Kata Kunci: konseling digital, kajian literatur, internet
First record of Wood duck Aix sponsa (Linnaeus, 1758) in Libya (Aves Anatidae)
Authors: Etayeb Khaled , Buirzayqah Saleh , Alghythi Habeeb
Published: February 2025

Birds move from one place to another without regard to international borders during their migrations. Particularly, the Mediterranean region is considered a link in the African-Eurasian bird migration route, especially migratory water birds. Among the North African countries, Libya is located in the middle of the southern coast of the Mediterranean Sea, it is considered a stopover and resting ground for many bird species. A Wood duck Aix sponsa (Linnaeus, 1758) (Aves Anatidae), species commonly found throughout North America, was recorded for the first time in Benghazi city at the eastern coastal part of Libya on 04 Jan 2025 in a Sabkha (salt marsh). It is a female characterized by the gray and brown color of the body with a white ring around the eyes. It can be confirmed that this species is not among the ornamental birds imported into Libya for trade but may have escaped from a farm in countries bordering Libya.
Reasons for the long-lasting participation in a community-based aerial sling class: Creative, performative, playful, challenging, and rewarding without feeling like a workout
Authors: Kosma Maria
Published: February 2025

USA has the lowest life expectancy of its peer countries and steadily increasing obesity rates. Although exercise is key to health and well-being, long-term exercise participation is a significant challenge. Therefore, the purpose of this qualitative, hermeneutic study was to examine the reasons for the long-lasting participation in a community-based aerial sling class (Flow) among adult women. Drawing on the philosophical underpinnings of techne (art) and phronesis (practical wisdom/reasoning), it was hypothesized that the techne-related elements of the Flow class (e.g., performativity, creativity, play, accomplishment of challenging skills) would be highly motivating and thus lead to the participants’ decision to continue with the class and other similar movement endeavors (link between techne and phronesis). Study participants were seven women (aged 28 – 48 years), including the class students and instructor at a major US city. The Flow class commenced in January 2024 and took place once per week for 1.15 hours. The class included skill based and performative elements such as dynamic sling choreographies. Following a show performance in May 2024, individual interviews were conducted via zoom to collect the study’s data. Based on the qualitative analysis, three themes emerged regarding the reasons for the long-lasting (at least nine months) participation in the Flow class: a) Performativity, creativity, play: creating and performing choreographies, returning to childhood; b) “Proud” feeling of accomplishment; Motivating and not boring: “does not feel like a workout”: sensing the “addictive” nature of aerial arts vs. “being bored by lifting weights at a gym”, “mentally rewarding,” “feeling accomplished”; and c) Improved strength, energy, stamina, and health: being stronger and healthier than before (e.g., improving symptoms of rheumatoid arthritis). Based on the study findings, the techne elements of the Flow class led to long-term participation in the class and other similar exercise endeavors. Therefore, exercise promoters should incorporate performative, creative, playful, and challenging elements in movement programming for long-lasting exercise participation.
Government policies, human resource management and the performance of artisanal small-scale mining for the sustainable livelihoods of employees
Authors: Shumba Georgina , Chikazhe Lovemore , Jengeta Miriam
Published: February 2025

Given the economic momentum of the mining sector, the discovery of natural resources – most
notably that of gold – is expected to revolutionize the economy, especially in developing nations. The
current study sought to establish whether artisanal and small-scale mining, human resource
management, and government policies influence sustainable livelihoods of employees within the mining
sector. A cross-sectional survey of 377 employees was conducted among managerial employees from
artisanal small-scale mining organisations. The results show that both government policies as well as
artisanal and small-scale mining performance positively influence sustainable livelihood for mining
workers. Similarly, human resource management moderates the relationship between sustainable
livelihoods of employees within the mining sector and the performance of artisanal and small-scale
mining. When developing plans for the sustainable livelihoods of employees, management should
prioritise improving human resource management practices, including compensation, career
development, training, wage and incentive aspects of employment and employee welfare. This study
narrows the knowledge gap in the extant literature on business management through expanding
literature on the moderating effect of human resource management on the relationship between artisanal
and small-scale mining performance and sustainable livelihoods.
Confirmatory factorial structure of work commitment in a health institution in central Mexico
Authors: García-Lirios Cruz
Published: February 2025

Social work is involved in public policy and social programs that target vulnerable, marginalized or excluded, it is necessary to analyze its commitment considering its relation to the management for the treatment of illness and rehabilitation of health sector institutions. In this regard, the objective of this study was to establish the reliability and validity of an instrument for measuring work commitment in the health sector. For this purpose, we used a nonrandom sample of 100 social work professionals with experience in implementing social programs and monitoring of institutional strategies for health promotion. Were established normality, reliability and validity on the scale that measured labor commitment. Structural model was established in which reflective commitment to the institution was positively related to work engagement. The residual fit indices and corroborated the hypothesis of multidimensionality of work commitment.
Demographic Information, Cardiac Findings and Factors Related to Childhood Syncope: A Cross-Sectional Study
Authors: Sadeghvand Shahram
Published: February 2025

Introduction: Due to the association of syncope and some serious cardiovascular disorders in children, evaluation of relevant findings and determination of its common and uncommon findings can lead to early diagnosis and especially better management of these patients.

Methods: In this cross-sectional study, data including syncope episode numbers, leading factors, aura presence, complete medical history, clinical data, Cardiopulmonary findings and 12-lead electrocardiography (ECG) information were recorded. If there is a positive ECG or clinical result, 2D Doppler echocardiography was performed for patients and the results were recorded.

Results: Among the included patients [n=100], the average number of syncope episodes at the time of study was 4 syncope episodes. The most common cause of syncope in children studied was syncope following exercise [33%]. The most common aura was palpitation with a frequency of 29%. In the studied children, abnormal ECG was observed in 11 children [11%]. Abnormalities included prolonged QTc in 4 cases, ventricular hypertrophy based on high voltage in 2 cases, atrial enlargement in 2 cases, abnormal axis in 1 case, complete heart block in 1 case, and supraventricular tachycardia in 1 case.

Conclusion: The appropriate history and clinical examination along with ECG is of great value in the diagnosis of syncope with cardiovascular causes in children. It was also observed in this study that the main defaults of cardiac syncope include early syncope with common periods, abnormal ECGs, and higher sitting and standing blood pressure differences.
Phenotypic and Genomic Analysis of Enterococcus thailandicus MEDPSU_PRO_001 Isolated from Chicken Feces, a Potential Probiotic with Aggregation Ability
Authors: Muangkaew Thanchanok , Singkhamanan Kamonnut , Wonglapsuwan Monwadee , Romyasamit Chonticha , Suwannasin Sirikan , Thant Ei Phway , Surachat Komwit
Published: February 2025

Objective: This study aimed to explore the genotypic and phenotypic of Enterococcus thailandicus MEDPSU_PRO_001, a strain isolated from chicken feces, as a probiotic candidate through comprehensive in silico and in vitro analysis.Material and Methods: This study examined the genetic characteristics of E. thailandicus MEDPSU_PRO_001 by using Oxford nanopore long-read sequencing sequences to identify significant genetic details associated with probiotic potential and pathogenicity; such as virulence factor genes and antibiotic-resistant genes, and the findings were supported by phenotypic assays. Results: E. thailandicus MEDPSU_PRO_001, with a genome size of 2,771,294 bp, was analyzed for its probiotic potential. No antimicrobial resistance genes were identified, with a cutoff value of 80% identity; although vanY (33.91% identity) and aac(6’)-Ii (72.63% identity) genes were detected. Phenotypic studies confirmed the strain’s lack of resistance to vancomycin. Furthermore, genes associated with adherence; including ebpA, ebpB, ebpC, srtC, ecbA, and efaA and EPS cluster, were identified. This highlights their role in the adherence and aggregation of probiotic strains that were supported by phenotypic assays against probiotic and pathogens. Additionally, the presence of bacteriocin-encoding gene Laps was noted. No hemolysis activity supports the safety of this strain.Conclusion: This comprehensive genomic analysis of E. thailandicus MEDPSU_PRO_001 reveals its beneficial characteristics; such as aggregation ability, as a potential probiotic. This study provides valuable insights into the probiotic nature of this strain, underscoring the safe utilization of E. thailandicus.
Цифрова культура як глобальна педагогічна проблема
Authors: Кабанець Андрій
Published: February 2025

The article examines digital culture as a global pedagogical problem emerging from the rapid development of digital technologies. The author analyzes the impact of digital culture on the transformation of educational systems, identifying it as a critical factor driving changes in pedagogical paradigms. On the one hand, digital culture enhances educational practices by providing access to interactive resources, fostering individualized learning, and developing digital competencies. On the other hand, its integration into educational systems presents numerous challenges, such as the digital divide, information overload, weakened social interactions, and reduced emotional intelligence. The author proposes a systematic approach to addressing these issues, including the development of digital strategies, ensuring equal access to digital tools, training educators, and conducting interdisciplinary research. The article emphasizes the need to adapt educational policies to the challenges of digitalization and to create an inclusive and safe educational environment. The conclusions highlight that digital culture can serve as the foundation for building a qualitatively new educational space aimed at sustainable societal development.
Засоби та методи формування патріотичної культури майбутніх офіцерів
Authors: Брик Тетяна , Григорова Ірина , Савченко Ольга
Published: February 2025

The article describes the definitions of the terms "patriotism" and "patriotic education". Patriotism (from the Greek "patris") is love for the Motherland, devotion to one's Fatherland and people. The philosophical dictionary defines "patriotism" as one of the forms of dialectical combination of personal and public interests, unity of man and society. Patriotic education is a systematic educational activity aimed at forming in cadets a sense of patriotism, i.e. a good attitude towards the Motherland and towards representatives of a common culture or country. National and patriotic education of  youth is a complex systematic and purposeful activity of state authorities, educational institutions, non-governmental organizations, the family and other social institutions in order to form in the young generation a high level of patriotic consciousness, a sense of loyalty, love for the Motherland, care for the good of the people, readiness to fulfill  civic and constitutional duty to protect the national interests, integrity, independence of Ukraine, and support its establishment as a legal, democratic, and social state. The most important priority of national and patriotic education is the formation of a valuable attitude of the individual towards the Ukrainian people, the Motherland, the state, the nation. Society must realize that patriotic education is the basis of spiritual development of the individual, a component of the national worldview and behavior of a person (in our case, a future officer) in his (her) attitude to his (her) native country, to all nations and peoples. Patriotic education is a powerful stimulus in the struggle for victory and the development of a new independent Ukraine, the spiritual renewal of society, and the formation of high ethics of international relations. Loyalty to Ukraine is an integral sign of a nationally conscious citizen. The formation of patriotic feelings in a military unit, in the process of military and professional communication, means the development and strengthening of a high ideal of service and protection of one's people, readiness for a military feat in the name of freedom and prosperity of the state, the desire to see it free and independent. We will be ruled by the Ukrainian Cossacks, who with their incredible battles and victories, with their slogan "Either gain the will, or not be at home," laid the foundation of national and patriotic consciousness as an eternal example of patriotism and honor. Practical classes in the English language, as well as extracurricular activities on national and patriotic topics, can significantly influence the process of forming the patriotic culture of future officers. Cultural and educational events organized by the course officers should also contribute to this process.
Efecto de minivideos enfocados a la prevención de infecciones de transmisión sexual adquiridas mediante sexo oral
Authors: Velasquez Suarez Laura Valentina , Carrillo-Reina Diana Lucía , Barreto-Castro Lizeth Yeizury , Doncel-Romero Lady Katerine , Franco-Umaña María Paula , Angarita-Diaz María del Pilar , García-Balaguera César , Moncaleano Ingrid Rocio
Published: February 2025

En la actualidad, los casos de contagio en jóvenes y adolescentes por infecciones de transmisión sexual representan un problema de salud pública. Esto evidencia la carencia en educación sexual y por tanto irresponsabilidad en las conductas sexuales de este grupo poblacional, además del inicio precoz en estas prácticas. La presente investigación tiene como finalidad evaluar el efecto de una estrategia enfocada a la prevención de Infecciones de Transmisión Sexual adquiridas mediante sexo oral en adolescentes y adultos jóvenes. Para ello, se realizó un estudio de tipo cuasi experimental, donde se implementó a estudiantes de dos instituciones educativas de Villavicencio-Meta, tres minivídeos sobre Infecciones de Transmisión sexual transmitidas a través del sexo oral. Para evaluar el efecto de la estrategia, se comparó la mediana de respuestas correctas antes y después de la implementación de los minivideos (de forma inmediata y a los 4 meses). Los resultados indicaron un efecto significativamente favorable (p<0.01, p<0.05) en la mediana de respuestas correctas en la sección de Conocimientos y Actitudes, así como un incremento en el número de participantes que contestaron de forma correcta algunas de las preguntas planteadas. La mayoría de los estudiantes dieron una respuesta positiva a las preguntas sobre la valoración de los minivídeos. Como conclusión, el presente estudio demostró un efecto favorable después de la implementación de 3 minivideos, en los Conocimientos y Actitudes en relación con las Infecciones de Transmisión Sexual transmitidas mediante sexo oral.
The Mediating Effect of Recovery Experience and Emotional Contagion on Work Stressor and Job Burnout among Nigeria Corporate Employees
Authors: Abba Fidelis Ejeh
Published: February 2025

In human resource management and regarding employee mental health in the workplace, job burnout, and work stressors are fundamental issues as they affect not only the employees' wellness but also the organization's sustainability as a whole. Embedded in the Conservation of Resources theory and the Effort–Recovery model of working time, this quantitative study aims to answer questions of how recovery experience and emotional contagion affect the effect of work stressors on job burnout. In putting our hypotheses to the test, we targeted a sample of 305 corporate employees from different industry sectors in Nigeria. The results showed that work stressors led to an increase in job burnout. The results also showed that work stressors and recovery experience were correlated in such a way that work stressor caused recovery experience, which, in turn, enhanced the work-stressor-job burnout relationship. In this study, work stressor had no relationship or influence with emotional contagion; consequently, there was no mediation effect of emotional contagion between work stressors and job burnout. On the other hand, there was a direct relationship between emotional contagion and job burnout, although no relationship existed between the recovery experience and job burnout. These findings are in accordance with the Conservation of Resources theory and the Effort-Recovery model, thereby increasing understanding of job burnout as experienced by workers in organizations as a result of work demands. This will be beneficial to the organization whose intention is to reduce employees´ burnout and their welfare.
A Convergent Dynamic Window Approach with Minimal Computational Requirements
Authors: Antich Javier  , Ortiz Alberto
Published: February 2025

Many applications in mobile robotics require the safe execution of a real-time motion to a goal location through completely unknown environments. In this context, the dynamic window approach (DWA) is a well-known solution which is safe by construction —assuming reliable sensory information— and has shown to perform very efficiently in many experimental setups. Nevertheless, the approach is not free of shortcomings. Examples where DWA fails to attain the goal configuration due to the local minima problem can be easily found. This limitation, however, has been overcome by many researches following a common framework which essentially provides the strategy with a deliberative layer. Based on a model of the environment, the deliberative layer of these approaches computes the shortest collision-free path to the goal point being, afterwards, this path followed by DWA. In unknown environments, nevertheless, such a model is not initially available and has to be progressively built by means of the local information supplied by the robot sensors. Under these circumstances, the path obtained by the deliberative layer may repeatedly and radically change during navigation due to the model updates, which usually results in high-suboptimal final trajectories. This paper proposes an extension to DWA without the local minima problem that is able to produce reasonable good paths in unknown scenarios with a minimal computational cost. The convergence of the proposed strategy is proven from a geometric point of view.
New Results for Horn Cores and Envelopes of Horn Disjunctions
Authors: Eiter Thomas  , Makino Kazuhisa
Published: February 2025

We provide a characterization of Horn cores for formulas in conjunctive normal form (CNF) and, based on it, a novel algorithm for computing Horn cores of disjunctions of Horn CNFs that has appealing properties (e.g., it is polynomial for a bounded disjunction). Furthermore, we show that recognizing the Horn envelope of a disjunction of two Horn CNFs is intractable, and that computing a compact Horn CNF for it (that is irredundant and prime) is not feasible in polynomial total time unless P=NP; this answers an open problem.
Conservativity in Structured Ontologies
Authors: Kutz Oliver  , Mossakowski Till
Published: February 2025

Using category theoretic notions, in particular diagrams and their colimits, we provide a common semantic backbone for various notions of modularity in structured ontologies, and outline a general approach for representing (heterogeneous) combinations of ontologies through interfaces of various kinds, based on the theory of institutions. This covers theory interpretations, (definitional) language extensions, symbol identifications, and conservative extensions. In particular, we study the problem of inheriting conservativity between sub-theories in a diagram to its colimit ontology, and apply this to the problem of localisation of reasoning in ‘modular ontology languages’ such as DDLs or ℰ-connections.
Design Patterns Identification Using Similarity Scoring Algorithm with Weighting Score Extension
Authors: Cichý Martin  , Jakubík Jaroslav
Published: February 2025

The identification of used design pattern as a part of the reengineering process provides useful information about the structure of a system. One of the existing pattern detection methodologies is detection based on similarity scoring algorithm proposed by Nikolaos Tsansalis. In this paper we propose a modification of the approach, in which we evaluate each observed part of the design pattern separately in the relation to the essence of the design pattern. This leads us to weighting of the observed structural parts of a pattern, so the more important structural parts have higher contribution to the calculated score.
How Hard is a Commercial Puzzle: the Eternity II Challenge
Authors: Ansótegui Carlos  , Béjar Ramon  , Fernández Cèsar  , Mateu Carles
Published: February 2025

Recently, edge matching puzzles, an NP-complete problem, have received, thanks to money-prized contests, considerable attention from wide audiences. We consider these competitions not only a challenge for SAT/CSP solving techniques but also as an opportunity to showcase the advances in the SAT/CSP community to a general audience. This paper studies the NP-complete problem of edge matching puzzles focusing on providing generation models of problem instances of variable hardness and on its resolution through the application of SAT and CSP techniques. From the generation side, we also identify the phase transition phenomena for each model. As solving methods, we employ both; SAT solvers through the translation to a SAT formula, and two ad-hoc CSP solvers we have developed, with different levels of consistency, employing several generic and specialized heuristics. Finally, we conducted an extensive experimental investigation to identify the hardest generation models and the best performing solving techniques.
Complete Algorithms
Authors: Darwiche Adnan  , Pipatsrisawat Knot
Published: February 2025

Complete SAT algorithms form an important part of the SAT literature. From a theoretical perspective, complete algorithms can be used as tools for studying the complexities of different proof systems. From a practical point of view, these algorithms form the basis for tackling SAT problems arising from real-world applications. The practicality of modern, complete SAT solvers undoubtedly contributes to the growing interest in the class of complete SAT algorithms. We review these algorithms in this chapter, including Davis-Putnum resolution, Stalmarck's algorithm, symbolic SAT solving, the DPLL algorithm, and modern clause-learning SAT solvers. We also discuss the issue of certifying the answers of modern complete SAT solvers.
Toward Automatic Expertise Identification of Blogger
Authors: Shih Chia Chun  , Stu Jay  , Hsieh Wen-Tai  , Lai Wei Shen  , Chou Shih-Chun  , Tsai Tse-Ming
Published: February 2025

The architecture of participation and sharing that encourage users to add value is one of the fundamental characteristics of a successful Web 2.0 application. Blog, as a personal publish platform on the web, removes the intermediation for channel selection thus everyone can represent himself/herself without any filtering mechanism. In this research, we present a methodology to derive user's degree of expertise from blog data and conduct an experiment using data collected from a enterprise blog system. The result shows that the average precision reaches around 0.8 and which factor is useful in our proposed method.
Finite-State Machines for Mining Patterns in Very Large Text Repositories
Authors: Skut Wojciech
Published: February 2025

The emergence of WWW search engines since the 1990s has changed the scale of many natural language processing applications. Text mining, information extraction and related tasks can now be applied to tens of billions of documents, which sets new efficiency standards for NLP algorithms. Finite-state machines are an obvious choice of a formal framework for such applications. However, the scale of the problem (size of the searchable corpus, number of patterns to be matched) often poses a problem even to well-established finite-state string matching techniques. In my presentation, I will focus on the experience gained in the implementation a finite-state matching library optimized for searching large amounts of complex patterns in a WWW-scale repository of documents. Both algorithmic and implementation-related aspects of the task will be discussed. The library is based on OpenFST.
A Memory-efficient ϵ-Removal Algorithm for Weighted Acyclic Finite-State Automata
Authors: Hanneforth Thomas
Published: February 2025

Many NLP tasks based on finite-state automata create acyclic result automata which contain a lot of ϵ-transitions. We propose an refinement of an existing algorithm for ϵ-removal with a better memory consumption behavior in many practical cases.
A Neural Based WSN Mote Trajectory Reconstruction for Mining Periodic Patterns
Authors: Petrosino Alfredo  , Staiano Antonino
Published: February 2025

The problem of reconstruction and mining object trajectories is of interest in the applications of mining transport enterprise data concerning with the route followed by its delivery vans in order to optimize time and space deliveries. The paper investigates the case of Wireless Sensor Network (WSN) technology, not primarily designed for localization, and reports a technique based on recurrent neural networks to reconstruct the trajectory shape of a moving object (a sensor on a Lego train) from the sensor accelerometer data and to recover its localization. The obtained patterns are thus mined to detecting periodic or frequent patterns, exploiting a recently proposed technique based on clustering algorithms and associative rules to assert the ability of the proposed approach to track WSN mote localizations.
Single Channel Polyphonic Music Transcription
Authors: Ciaramella Angelo
Published: February 2025

This work aims to propose a novel model to perform automatic music transcription of polyphonic audio sounds. The notes of different musical instruments are extracted from a single channel recording by using a non-linear Principal Component Analysis Neural Network. The estimated components (waveforms) are classified by using a dictionary (i.e. database). The dictionary contains the features of the notes for several musical instruments (i.e. probability densities). A Kullback-Leibler divergence is used to recognize the extract waveforms as belonging to one instrument in the database. Moreover, considering the weights of the Neural Network a MUSIC frequency estimator is used to obtain the frequencies of the musical notes. Several results are proposed to show the performance of this technique for the transcription of mixtures of different musical instruments, real songs and recordings obtained in a real environment.
An efficient methodology to simulate mixed spectral signatures of land covers through Field Radiometry data
Authors: Vazquez-Sierra J.M.  , Martinez-Izquierdo E.  , Arquero-Hidalgo A.
Published: February 2025

An efficient methodology to simulate mixed spectral signatures of land covers, from endmember data, using linear statistical modelling based on the least squares estimation approach, is proposed. The optimal set of endmember has been obtained by measurements in situ with a field spectroradiometer GER 1500. It is proposed the use of new sub-pixel methods based on statistics and certain “units of sampling” to apply to the landscapes. The resultant point estimations for these new units will be the “observations” and all of them will carry out a special role to simulate the final spectral signature. This methodology is used to simulate spectral signatures of a Mediterranean forest landscape near to Madrid (Spain). Furthermore the spectral signature model obtained through Field Radiometry will be correlated with the image data of the same zone provided by the Landsat 7 Enhaced Thematic Mapper Plus (ETM+) sensor once corrected. Promising results about remote and near spectral response correlation have been obtained.
SAM and ANN classification of hyperspectral data of seminatural agriculture used areas
Authors: Zagajewski B.  , Olesiuk D.
Published: February 2025

The goal of this paper is methods and results presentation of artificial neural networks land cover classification based on DAIS 7915 hyperspectral data. Preparing the reference and training data were used SAM classification. To ANN classification experiments using variable pattern size were chosen two data sets included 13 bands obtained after MNF and 40 original bands. The best accuracy were achived using 13 MNF band with the 3×3 pixel subpattern size, what show useful of hyperspectral data extraction methods.
Urban change extraction from aerial photographs and multispectral scanner – an applied study from Graz/Austria
Authors: Sulzer W.  , Kern K.  , Eichberger St.
Published: February 2025

Urbanization processes are a major factor of change in Central Europe cities, where urban settlement structures have changed over the past decades, especially since the 2nd World War. Due to economic and political pressures several cities rapidly became regional centers or international nodes. Urbanization causes land-cover and land-use changes, which can lead to deeper social, economic and environmental changes. For planning purposes different methodologies and classification algorithm of remote sensing data are required. The semantic meaning of land-use and land-cover classes and their differences itself will influence the potential of further planning issues. This topic will be documented by the concrete example of the terms sealed and built-up.
An operational approach for annual land cover mapping at the national scale with MERIS images
Authors: Araújo A.  , Carrão H.  , Caetano M.
Published: February 2025

This study evaluates the effectiveness of a previous developed methodology, in which was produced a medium scale land cover map for Portugal for 2005, when tested with up-to-date data. If proved successful, this methodology can be used on an operational basis for the establishment of an annual land cover mapping program at the national scale. The main point of this work is to capitalize the investment that was made before, namely in the reutilization of the reference samples (train and test) previously collected, for the development of up-to-date land cover maps. To carry out our study we have produced a land cover map for 2006 using the same methods, nomenclature, reference and auxiliary datasets, and others, that were exploited and established with success before. For map classification we used a supervised Linear Discriminant Classifier (LDC) combined with a vegetation index differentiating technique. Prior to the classification, we submitted the 2005 training database to an outliers detection procedure in order to remove and replace those sample observations that registered class changes from 2005 to 2006. The 2006 map was then rigorously validated and compared with 2005 map. Overall accuracy of the final map was of 70%, showing to be smaller than the one obtained for 2005 map, yet being considerably high. Comparison results demonstrated high agreement between 2006 and 2005 maps. General conclusions suggest that the developed procedure is effective and therefore can be use on an operational basis.
QoE and *-awareness in the Future Internet
Authors: Liberal Fidel  , Fajardo Jose-Oscar  , Koumaras Harilaos
Published: February 2025

Future Internet will have to cope with yet unknown terminals and services (even users), in a number and heterogeneity never seen before. So, flexibility or adaptability will be considered as one of the most important design principles. This flexibility will demand different kinds of awareness both in the ends and in every node in the service supplying chain, while targeting users' satisfaction as the final goal of any management process. Although virtualization and “everything is a service” approaches seem to be promising foundations to guarantee this flexibility, Future Internet will be built upon real world mobile wireless network technologies, so that cross-layers issues and quality constraints will persist. Quality of Experience (QoE) could play a significant role there, since it could provide an unified metric, isolating users from low level details or complex NQoS definitions. We will also show an example of how user-aware network tuning mechanisms are able to provide similar users' QoE with lower resources consumption and therefore propose that QoE and *-awareness were considered in the Future Internet design from the very beginning.
Stability of cut slopes in cohesive soils
Authors: Varga G.  , Czap Z.  , Mahler A.
Published: February 2025

Short-term stability in cohesive soils is defined by their undrained shear strength. However, after some time the stability decreases and experience shows that on the long run only those slopes are stable where the inclination is smaller than the soil's angle of internal friction. The short-term stability is due to the pore pressure change (“suction”) that emerges on soil removal. This negative excess pore pressure degrades over time due to a consolidation process, which results in a behaviour similar to granular soil. Numerical experiments were made to study the problem via the change of cohesion over time.
Settlement of an art relic church caused by the construction of the Metro line
Authors: Farkas J.  , Turi D.
Published: February 2025

The church of Kalvin square is found in the center of the Hungarian capital, Budapest. The subsoil layers are very changeable, the groundwater is 4–6 m deep from the surface. Next to the art relic building a 90 m long and 27.5 m wide underground station is being constructed from the surface by cut-and-cover method using diaphragm wall excavation technology. Some effects had to be analyzed which can cause the settlement of the church.
Cumulative effects on settlement damage to structures
Authors: Luger H.J.  , Bijnagte J.L.
Published: February 2025

In the Northern parts of the Netherlands the Slochteren gas reservoir is causing subsidence effects over a large area. As a consequence of this subsidence the water levels in canals and polders have to be adjusted over time, and new compartments are created to be able to assign different water levels to specific zones. A major design challenge lies in the optimisation of the size of these partitions: if the subsidence has to be followed very closely by the water level, the compartments, with associated dams, weirs, sluices and pumping stations have to be very small. The aim is to make the compartments in the water management system as large as feasible without causing inadmissible damage to buildings. The paper focuses on the way in which the contribution of past and future factors causing settlement can be determined. In particular a method is described by which different effects like foundation inhomogeneity, uneven loading, groundwater level changes, shallow subsidence due to peat oxidation and deep subsidence due to reservoir depletion can be combined. When placed in the context of established damage criteria like those of Burland & Wroth or Boscardin & Cording, which relate relative rotation within the structure to probability and severity of structural damage, a framework is created which enables to assign a contribution to the probability of damage of each of the recognised mechanisms. The method is demonstrated in the context of the water management questions in the Northern part of the Netherlands.
Geotechnical characteristics of recycled glass-biosolid mixtures
Authors: Disfani M.M.  , Arulrajah A.  , Suthagaran V.  , Bo M.W.
Published: February 2025

The sustainable reuse of waste materials such as recycled glass (RG) and biosolids (Bio) in geotechnical applications would greatly reduce the demand for landfill sites and for virgin materials. The most important obstacle in the sustainable use of recycled glass and biosolids mixtures in geotechnical applications is the lack of knowledge about their engineering characteristics particularly when they are blended together. The use of such mixtures is a cost effective and innovative way of reusing both waste materials and overcoming the deficiencies that they would possess if they were used on their own. Preliminary tests were conducted on samples made of purely recycled glass and biosolids and also on blended RG-Bio samples to determine their geotechnical parameters. Particle size distribution, compaction tests and Direct Shear Tests (DST) were undertaken on both pure and blended materials. The shear strength characteristic of the mixture and its relation to the percentage of each component were analysed. It was concluded that the mixture takes advantage of the friction resistance of coarser recycled glass particles and the cohesion strength of finer particles which are mostly from biosolid grains. The results indicated that the RG-Bio mixtures have satisfactory shear strength characteristics which enable these mixtures to have an excellent potential to be used as an embankment fill material in roads.
Flow of foamed grout in granular soils
Authors: Ali L.  , Woods R.D.
Published: February 2025

In traditional method of chemical grouting, the soil voids are almost 100% filled with the grout. However, experience has shown that only minor deposition of the grout at the inter-particle contact may be sufficient to achieve the desired improvement of the soil. Minor deposition of the grout is possible by the foaming process in which liquid chemical grout is converted into foamed grout. The flow of chemical grout has been studied by many, but flow of foamed sodium silicate grout has not been investigated since it is a new process. A comprehensive experimental lab study was therefore conducted to study the flow of foamed chemical grout in one-dimensional and two-dimensional models. Experiments were designed to simulate a variety of soil types, moisture conditions, foam injection patterns, etc. Qualitative and quantitative experiments were conducted to assess the efficacy of foam displacement.
DEM simulation of effect of confining pressure on ballast behaviour
Authors: Thakur P.K.  , Indraratna B.  , Vinod J.S.
Published: February 2025

In this paper, an attempt has been made to investigate the influence of confining pressure on deformation and degradation behaviour of railway ballast using the Discrete Element Method (DEM). A novel approach has been employed to model the two dimensional projection of field size ballast particles as cluster of bonded particles. Bonded particles are held together by a bond, and debonding is considered as particle breakage. A series of cyclic loading simulations using DEM were carried out on an assembly of angular ballast particles at different confining pressures (10 kPa to 240 kPa). The results highlight that the development of axial strain during cyclic loading as a function of initial confining pressure and number of cycles. Very high axial strain and breakage of particles have been observed at low confining pressure (< 30 kPa) owing to dilative volumetric strain behaviour. In terms of particle breakage, there exists an optimum range of confining pressures where breakage is minimal. In addition, the evolution of particle displacement vectors explains the breakage mechanism and associated deformations during cyclic loading.
Stress-strain state of the system “base-strip foundation” at elimination of excessive tilts of buildings
Authors: Shokarev V.  , Shapoval V.  , Chaplygin V.  , Samchenko R.  , Volkov D.
Published: February 2025

The classification of technologies of tilts elimination of buildings and constructions is carried out. It is offered the geomechanical and design models corresponding to physical state of soil under strip foundation underworked by horizontal cylindrical boreholes. The structural diagram of the device for control of parameters of the system “foundation soil – strip foundation with tilt” is presented.
Consolidation of the multilayered soil basis
Authors: Zhakulin A.S.  , Zhakulina A.A.  , Unaibaev B.Zh.
Published: February 2025

The private decision of system of managements of movement and preservation of weight for forecasting concentration of a filtering liquid and the remained salt in the multilayered soil basis is offered. Having a precise picture of development dissolution and carrying out of salts in the multilayered basis for the set moment of time and knowing a condition of carrying out of salts in the soil bases, on factor kzwhich characterizes development of the cumulative and deformation processes proceeding in the soil basis, is predicted development deposits of a building or a construction for set time. Relative deformation is described in time, as product of factor of replacement with specific volume of the born salts. At a vertical direction of a filtration of water, intriguing a parameter of relative compressibility on compressed thickness of the salted ground, we receive required law of development deposits of the multilayered soil basis with film and volumetric saline (at k=0 and 0,5 accordingly).
Design service life of geogrids in mechanically stabilized earth walls
Authors: El-Sherbiny R.  , Gross B.
Published: February 2025

Geosynthetic-reinforced mechanically stabilized earth (MSE) walls have been used since the 1970s in a variety of applications where steepened embankments are needed. MSE walls have been generally designed for a service life of 75 to 100 years. However, in some applications, a service live in excess of 100 years is desired. Geogrids are among the most widely used geosynthetic reinforcement in MSE walls, and this paper concentrates on the design service life of geogrid-reinforced MSE walls. The durability of geogrids is a function of damage that may occur during their installation, tensile stresses to which they are subjected during their service life, and degradation experienced during exposure to the in-soil environment. The current design approach used to account for strength losses due to installation damage, creep, and long-term degradation is to apply reduction factors to the ultimate tensile strength of the reinforcement. Reduction factors commonly used in design were developed for road embankment applications and generally reflect a 100-year service life. This paper presents the factors affecting durability and service life of geogrid reinforcement used in MSE walls, and a method to account for the design service life of the geogrid reinforcement. The conclusion of the paper is that MSE walls can be designed for a service life greater than 100 years using total combined reduction factors.
Software Development Methodology for Fast Changing Environment
Authors: Šochová Zuzana
Published: February 2025

This paper presents the usage of the agile and Scrum methods for SW projects in extremely dynamic environments. It describes the benefits of using Scrum process in fast changing environments and addressing the most crucial problems described by IT project surveys. The paper is focused on extremely short projects and delivery times counted on days and hours and changing the Scrum process accordingly. The key focus practices include team collaboration, team responsibility for the quality delivery on time and with right functionality, and customer integration into the process.
Collaborative Agent-Based Learning for Brain Tumour Diagnosis
Authors: Rafael-Palou Xavier  , Rovatsos Michael  , Mier-Perez Mariola  , Lluch-Ariet Magi
Published: February 2025

This paper presents the collaborative agent-based learning subsystem of HealthAgents, a multiagent distributed decision support system for brain tumour diagnosis. The subsystem aims to boost the performance of the independent and heterogeneous classifiers in spite of the limited data transfer conditions prevailing in the system. The susbsystem is composed by local autonomous agents which are interacting among them, following an existing collaborative learning model. The different aspects and decisions dodged during the adaptation of this model are described in addition to the results of its initial evaluation with the data of HealthAgents. Significant increments of classification performance attained by the learning agents demonstrate the potential benefits of this subsystem.
Classifiers vs. Input Variables – The Drivers in Single-Date and Multi-Seasonal Image Classifications for Land Cover Mapping
Authors: Heinl Michael  , Tappeiner Ulrike
Published: February 2025

The performance of image classifiers in large-scale land cover mapping and the relevance of input variables for classification accuracy are investigated in order to assess and to quantify the importance of these components in image classification. Specifically tested are maximum likelihood classification, artificial neural networks and discriminant analysis for landscape-scale land cover assessments in the alpine region. DEM-derived ancillary data and radiometric modifications of spectral data (Landsat7 ETM+) are incorporated step-wise into the classifications to document the relevance of these input data. Including ancillary data did show large potential for increasing classification accuracy, comparable to the selection of the classifier. Multi-temporal spectral information further increased classification accuracy, despite temporary snow cover in the images.