bluuebunny/crossref_metadata_2025 huggingface dataset:
An Analysis of Vocational High School Teachers’ Stage of Concerns about Teacher Professionality By Concerns-Based Adoption Model
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Soo-Jeong , Kim Minjeong
Published: February 2025

Objectives The purpose of this study is to analyze the level of interest in teacher professionalism of vocational high school teachers, analyze the difference in interest in teacher professionalism according to the characteristics of their school and teachers, and seek ways to improve them.
Methods To this end, a survey was conducted on 460 vocational high school teachers nationwide to measure their interest in teacher professionalism, and the responses were analyzed using George et al.'s CBAM model (2006). Based on the results of the analysis, the level of interest in ‘teacher expertise’ of vocational high school teachers was categorized into seven stages (indifference, information, personal, operation, results, cooperation, and alternative) to analyze their trends and characteristics.
Results The purposes of this study were to specify variables related to convergence competency, and to analyze the structural relationships among them. The purposes of this study were to specify variables related to convergence competency, and to analyze the structural relationships among them.
Conclusions Vocational high school specialized subject teachers are very interested in basic information related to teacher expertise and changes in roles and tasks due to teacher expertise, so it is necessary to provide more information on teacher expertise and to prepare a plan to improve teacher expertise with interest.
The Mediating Effect of Autonomy in the Relationship Between Children's Perceived Parental Achievement Pressure and Depression
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Mijung , Lee Yunju , Choi Woongyong
Published: February 2025

Objectives This study aimed to verify the mediating effect of autonomy in the effect of parental achievement pressure perceived by children on depression.
Methods To this end, data from the 14th Korean Children's Panel Survey (2021) was used to analyze data from 1,328 people born in 2008. Data were analyzed using SPSS 23.0 to perform reliability analysis, descriptive statistics, and correlation analysis, and hierarchical regression analysis was performed to verify the mediating effect and Sobel Test was performed to verify statistical significance.
Results First, parental achievement pressure perceived by children was found to have a significant positive effect on children's depression. Second, parental achievement pressure perceived by children was found to have a negative effect on autonomy. Third, children's autonomy was found to have a negative effect on depression. Fourth, autonomy was found to mediate the relationship between parental achievement pressure and children's depression.
Conclusions The results of this study clearly reveal the major variables that affect children's depression, and thus it is necessary to develop and implement education and counseling programs related to parental achievement pressure and autonomy for children experiencing depression.
Inverno da Inteligência Artificial: Uma Análise sobre a Viabilidade Operacional e Econômica sob Ótica de Investimento
Authors: Sewald Junior Egon , Prazeres Rodrigo , Borguezan Lucas , Allesio Huriel Andrade
Published: February 2025

No atual cenário empresarial em constante evolução, a adoção estratégica da Tecnologia da Informação e Comunicação (TIC) tem se mostrado essencial para a obtenção de vantagens competitivas e o alcance dos objetivos organizacionais, e isso inclui as aplicações de Inteligência Artificial (IA). Nesse contexto dinâmico, a análise de investimentos em práticas de TIC e da IA desempenha um papel crucial, onde a distinção entre gastos e investimentos se torna um ponto-chave de deliberação para os gestores administrativos. O presente estudo tem o objetivo de analisar os eventos conhecidos como Inverno da IA e relacionar com problemas causados pela falta de visão dos gestores administrativos sobre o dispêndio financeiro da TIC e IA, bem como a análise de viabilidade e retorno de investimento desse dispêndio.
RELATO DE CASO: Tratamento da TCC em paciente com sintomas depressivo persistente
Authors: Silva Paulo Nunes Martins da , Silva Felipe Fernandes da
Published: February 2025

Depressive symptoms are prevalent across various disorders, particularly mood-related conditions. This case report aims to investigate the treatment procedure for an adult patient in 2024, spanning 13 sessions at a private university in João Pessoa. The sessions were guided by weekly supervision, complemented by book studies and resources on effective techniques, methods and instruments for treating depressive symptoms. This study aims to provide guiding insights into treating persistent depressive symptoms using evidence-based techniques, methods, and instruments from research, books and articles. Throughout the therapeutic process, the following techniques were employed: Downward Arrow (identifying underlying assumptions), Guided Discovery, Socratic Questioning, Dissociation-focused, Psychoeducation, Cognitive Continuum, Motivational Interviewing, Mindfulness, Coping Cards, Pros and Cons Analysis, Double Standard (psychological distancing), Reattribution, Gradual Task Assignment, Behavioral Activation, Educational Metaphors. Regarding therapeutic resources, the following resources were used: Beck Depression Inventory (BDI-II), A Dysfunctional Thought Record (DTR), The Problem-Solving Inventory (PSI), Checklist of Cognitive Distortions. This article aims to clarify the treatment procedure for dysthymia with recurrent suicidal thoughts from a Cognitive-Behavioral Therapy (CBT) perspective, offering a guiding alternative for addressing depressive symptoms. Through a case report conducted in accordance with CBT literature, tools, scales, and tests used in the treatment were evidenced, which helped and resulted in the partial reduction of depressive symptoms and the total reduction of suicidal thoughts.
TRATAMENTO DE PESSOAS COM DIABETES MELLITUS ATRAVÉS DA ANÁLISE TRANSACIONAL
Authors: Rezende Aline Alves Ferreira de
Published: February 2025

Diabetes Mellitus is a chronic disease that, if not treated properly, can lead to serious and disabling complications, affecting several organs of the body. Brazil has approximately 16.8 million people with diabetes, which is a public health issue due to the aging population and the increasing prevalence of other chronic diseases. A diabetes diagnosis can have a significant emotional impact, characterized by feelings of hopelessness, fear, helplessness, and low self-esteem. The need to make lifestyle changes imposed by treatment can generate stress and make acceptance difficult. The presence of depressive symptoms, lack of motivation, and sociocultural aspects influence the promotion of self-care, making treatment difficult. Thus, through this bibliographic study, we proposed to use Transactional Analysis - TA as a theoretical framework to treat diabetic patients. TA helps patients understand their interpersonal dynamics and psychological vulnerabilities to transcend past experiences and take responsibility for themselves and their health, adopting new lifestyle habits. Active patient participation is essential, including understanding the disease and its treatment, seeking support, managing emotions, changing beliefs and adopting healthy habits. Thus, AT provides people with diabetes with greater self-knowledge, helping them to reframe their disease, take care of their emotional needs and develop strategies to deal with daily challenges. By taking greater responsibility for their choices and actions, individuals can build a healthier lifestyle, promoting a better quality of life.
A LUTA PARA A SOBREVIVENCIA DE JOVENS ENTREGADORES DE APLICATIVOS E O TRABALHO PRECARIZADO
Authors: Albarello Beatriz Amália , Rego Vitor Barros , Machado Lucas Brandão , Silva Ana Beatriz Sousa Da
Published: February 2025

Job insecurity acts as an immediate response to the scarcity of opportunities in the labor market as a result of the intense crisis of capitalism, which leads young workers to join application companies in a new model of labor management. In this article, an integrative review was carried out to understand the subjective experiences of cyclist and motorcyclist workers, delivery people mediated by applications. The results indicate different angles of perception regarding the delivery activity of motorcyclists and bicycle couriers, who use delivery applications as a work tool. The findings show eminently precarious working conditions, as well as pointing out that the work context is marked by demand for results, certain physical effort, accentuated use of memory and attention, especially due to traffic and in specific cases, workers falling ill with occupational risks. It turns out that the relationship between delivery platforms and workers can be seen as a form of neocolonialism, in which peripheral economies provide cheap labor and central economies extract profits. Furthermore, the search for uberized work arises from unemployment and an economic crisis. The precariousness of labor relations includes the loss of labor rights, lack of access to social security, mediation through platforms, management via algorithms.
PSICOLOGIA SOCIAL DO TRABALHO: Perspectivas históricas e desafios
Authors: Cardoso Francisca Maria Carvalho
Published: February 2025

The present study deals with the work category, with the aim of tracing some of the historical paths surrounding work in the West, and addressing some of the social transformations over time. As for the research problem, the relationship between work, society, the precariousness of this work activity over recent years and Social Psychology of Work, its contributions, paths, some paths, new possibilities for intervention and research are reflected. As a crucial objective, we highlight main questions about work in History and the importance of work as a category of study and multifaceted object studied by different disciplines such as: Sociology, History, Economics, Administration, Anthropology, Psychology, among others. The importance of studies and research in the Social Psychology of Work stands out as a perspective, practice and intervention that involves the reality of workers and presents visibility to work and work activities made invisible in the country for some years, with the possibility of redemocratization making new ones possible. studies and possibilities in the area of Work Psychology, which is already gaining strength with Social Psychology. In this sense, the study hopes to contribute to studies in the area of work and as a tool for studies, readings and possibilities in the field of Social Psychology of Work.
“ELE NÃO ADERE?!” – Revisão integrativa sobre a produção do cuidado à pessoa com Hipertensão Arterial Sistêmica
Authors: Silva Simone Pinho Rozendo Leite , Figueiredo Eluana Borges Leitão de , Paquiela Eliane Oliveira de Andrade , Paula Hermes Candido de , Koopmans Fabiana Ferreira , Souza Ândrea Cardoso de
Published: February 2025

The Systemic Arterial Hypertension is a problem that affects a large part of the Brazilian population. Despite the right to treatment in the Unified Health System, studies record a 72% increase in the disease in ten years. In addition to the rise in cases, there is a certain stigma in the daily life of services regarding users who do not “adhere” to treatment. The aim is to identify in the literature the barriers to producing care for people with Hypertension in Primary Health Care from the perspective of live work. This is a integrative review of literature developed in the Virtual Health Library, Latin American and Caribbean Literature in Health Sciences, International Literature in Health Sciences, Database of Nursing data, and on the Scientific Electronic Library Online platform in October and November 2023. It was observed that the studies highlighted barriers in the relationship with people with hypertension due to the stigma of non-adherent people and pointed to light technologies as other ways of caring for these people. It is concluded that in the scientific literature, little is discussed about the obstacles that are behind the resistance of people with Hypertension to adhere to prescriptions.
25 anos da Revista Brasileira de Estudos Urbanos e Regionais: perspectivas de futuro
Authors: Sposito Maria Encarnação Beltrão , Melazzo Everaldo Santos , RBEUR Comissão Editorial
Published: February 2025

Editorial, v. 26, 2025
Dar nome aos bois: um ensaio sobre categorias nativas e suas implicações políticas
Authors: Gonçalves Ana Luiza Vieira , Rizek Cibele Saliba
Published: February 2025

O presente artigo parte de inquietação inicial centrada na nomeação dos territórios periféricos e suas dimensões políticas e/ou despolitizantes, em um processo diretamente ligado ao repertório e às categorias (teóricas e políticas) mobilizados para sua compreensão. A partir disso, buscamos elaborar e desdobrar algumas consequências da adoção da categoria “ocupação” para identificar territórios periféricos em São Paulo, considerando o contexto de disputa política, ideológica e econômica entre diferentes atores, como Estado – presente sob a forma de institucionalidade, poder de polícia, parlamentares e leis, o que produz diferentes efeitos nos territórios –, matrizes religiosas distintas, grupos que operam mercados ilícitos, movimentos sociais, organizações não governamentais, empresas privadas do mercado formal, moradores e universidades nacionais e internacionais, entre outros. A partir de pesquisa empírica realizada no distrito do Grajaú, zona sul da cidade de São Paulo, interessa-nos sobretudo pôr em xeque as formas de adoção acrítica de categorias à primeira vista nativas; defendemos, no caso estudado, o uso da categoria “favela” a partir de uma perspectiva dissensual, incidindo sobre o sensível, conferindo-lhe outras nomeações e disputando sentidos instrumentalizados por uma suposta ação virtuosa.
A partir de pesquisa empírica realizada no distrito do Grajaú, Zona Sul da cidade de São Paulo, defendemos o uso da categoria favela a partir de uma perspectiva dissensual, incidindo sobre o sensível e conferindo-lhe outras nomeações e disputando sentidos instrumentalizados por uma suposta ação virtuosa.
Espaços de lazer de natureza e iniquidade racial
Authors: Nunes Danilo Ciaco , Silvestre Bruno Modesto , Amaral Sílvia Cristina Franco
Published: February 2025

Este estudo teve por objetivo analisar o acesso da população negra de Campinas, com base na distância de moradia, aos equipamentos públicos de lazer na natureza instalados na cidade. Foram utilizados dados oficiais fornecidos pelo município e aqueles relativos ao georreferenciamento da distribuição das Áreas Verdes de Função Social cotejados com os dados raciais do Censo 2010. Por meio do acompanhamento da evolução da morfologia urbana e do aumento do perímetro oficial da cidade, ocorrido como resultado de movimentos migratórios regulares, os quais trouxeram pessoas em busca de melhores condições de vida (em sua maioria negras), conclui-se que Campinas reproduz um modelo de urbanização dispersa, que impacta o acesso aos espaços públicos de lazer já precarizados desde o processo da abolição escravagista.
Efficient Quantum Cooling Algorithm for Fermionic Systems
Authors: Marti Lucas , Mansuroglu Refik , Hartmann Michael J.
Published: February 2025

We present a cooling algorithm for ground state preparation of fermionic Hamiltonians. Our algorithm makes use of the Hamiltonian simulation of the considered system coupled to an ancillary fridge, which is regularly reset to its known ground state. We derive suitable interaction Hamiltonians that originate from ladder operators of the free theory and initiate resonant gaps between system and fridge. We further propose a spectroscopic scan to find the relevant eigenenergies of the system using energy measurements on the fridge. With these insights, we design a ground state cooling algorithm for fermionic systems that is efficient, i.e. its runtime is polynomial in the system size, as long as the initial state is prepared in a low-energy sector of polynomial size. We achieve the latter via a pseudo-adiabatic sweep from a parameter regime whose ground state can be easily prepared. We estimate that our algorithm has a polynomial runtime for systems where the spectral gap decreases at most polynomially in system size, and is faster than the adiabatic algorithm for a large range of settings. We generalize the algorithm to prepare thermal states and demonstrate our findings on the Fermi-Hubbard model.
Youth and their Current Concerns – Social Work and Media as Tools of Intervention
Authors: Tkacova H. , Pavlikova M.
Published: February 2025

Adolescents undergo numerous transitional life phases and
processes that gradually shape them into adult members of society. These processes are more complex than they may appear,
as they involve biological maturity and social and psychological development, which unfolds in close connection with the
surrounding environment. During adolescence, young people
experience physical maturation, identity formation, and establishing their value systems. At the same time, they face external pressures such as the need to fit in with peers, conflicts
between personal values and societal expectations, and the demand to adhere to social norms. Social work interventions aim
to help adolescents overcome barriers that may hinder their full
participation in society while addressing their specific needs. Using the qualitative research method of focus groups, this paper seeks to identify the current, specific concerns of adolescents. The discussion based on research findings highlights: 1)
opportunities for social work interventions and 2) a reflection
on the role of media in supporting social work in addressing
adolescent concerns. The study of adolescents’ current worries
and the realities discussed in this paper gain significance not
only regarding the aftermath of the COVID-19 pandemic but
also in light of the ongoing war in Ukraine, both of which profoundly impact the youth under investigation.
The Issue of energy-poor Households in the Slovak Republic
Authors: Vansac P. , Kenderesova E. , Noga V.
Published: February 2025

The concept of “energy poverty” currently lacks a universal
definition and a unified methodology, which significantly
complicates its adequate resolution. The term “energy poverty” should be distinguished from “fuel poverty,” whose
primary determinant is the issue of affordability. Access to
energy is fundamental for improving the quality of life and
it is a key prerequisite for economic development. In the developing world, energy poverty remains widespread. However, this phenomenon is increasingly present in developed
countries as well. It is essential to address energy poverty by
studying its causes, symptoms, and impacts on society and
the social climate, even in the absence of comprehensive data.
Today, energy poverty is regarded as a consequence of systemic inequalities that create barriers to accessing energy at
affordable prices.
Design and Implementation of Hybrid Adaptive Neural Architecture for Self-Absorption in Virtual Machines
Authors: BILLA Naga Mallikarjuna Rao , Prasadu PEDDI  , Manendra Sai DASARI
Published: February 2025

This study introduces a Hybrid Adaptive Neural Architecture designed to address the dynamic resource management challenges in Virtual Machines (VMs). Current static and heuristic-based approaches are insufficient for adapting to real-time workload variations, resulting in inefficiencies, latency, and resource contention. The proposed architecture leverages neural networks, including convolutional and recurrent layers, integrated with adaptive mechanisms such as reinforcement and transfer learning, to enable self-absorptive capabilities in VMs. This self-adaptation allows VMs to autonomously learn from operational data, predict resource demands, and adjust allocations in real-time, optimizing performance and minimizing overhead. Experimental evaluation across diverse workload patterns demonstrated the architecture's effectiveness. For burst workloads, the proposed system achieved a 98.6% success rate, outperforming heuristic methods (77.3%) and static allocation (64.2%). Under steady workloads, it maintained 94.9% throughput consistency, compared to 81.7% and 70.3%, respectively. The architecture reduced ephemeral workload allocation lag to 28.7 ms, significantly outperforming heuristic (115.6 ms) and static approaches (205.4 ms). Additionally, the proposed system improved resource utilization, achieving 84.7% CPU efficiency and 92.4% memory efficiency, while maintaining a low latency of 48.6 ms. These results validate the system's ability to dynamically allocate resources efficiently, adapt to workload variability, and enhance overall VM performance. The findings set a benchmark for neural-based resource management in virtualized environments, paving the way for scalable, autonomous solutions in modern computing infrastructures.
Alternativas bioéticas para el tratamiento de embriones supernumerarios a propósito de las técnicas de reproducción asistida
Authors:   Pontificia Universidad Católica del Ecuador Sede Ibarra, Arias Pardo Luis Martín , Pantoja Rivas Yadira Marcela ,   Pontificia Universidad Católica del Ecuador Sede Ibarra
Published: February 2025

La bioética se ocupa de los principios morales y éticos que deben guiar las decisiones relacionadas con la vida y la salud. En el contexto del tratamiento de embriones supernumerarios, surgen preguntas complejas sobre el estatus moral de los embriones, sus derechos y el consentimiento de los donantes. El objetivo de la investigación se centró en establecer las alternativas bioéticas para el tratamiento de embriones supernumerarios generados a partir de técnicas de reproducción asistida. La metodología utilizada corresponde a una investigación cualitativa, descriptiva y no experimental, desarrollada a partir de una revisión narrativa. Al finalizar el estudio, se concluye que, cada una de estas cuatro alternativas ofrece enfoques distintos en la compleja problemática de los embriones supernumerarios generados por técnicas de reproducción asistida. Es crucial considerar y respetar la vida y los derechos de los embriones, encontrar un equilibrio ético en las decisiones que se tomen y subrayar la importancia de un enfoque integral que contemple las distintas realidades de las parejas que enfrentan esta situación.
Response to a Political Critique and Personal Attack Against a United Nations Report that Presented New Evidence About Prostitution as a Cause and Consequence of Violence Against Women and Girls
Authors:   United Nations, Alaslem Reem
Published: February 2025

Reem Alsalem, the United Nations Special Rapporteur on the Elimination of Violence Against Women and Girls, Its Causes and Consequences, responses to the false and unfounded accusations and personal attacks on her Report on Prostitution and Violence Against Women presented before the 56th session of the United Nations Human Rights Council in Geneva, 2024. I presented new evidence regarding the relationship between violence against women and girls and prostitution. Using human rights law, the Report described how prostitution is a system of abuse, exploitation, and violence against women and girls. The Report’s goal was to clarify concepts and terminology, to describe the root causes and consequences of prostitution. The report’s success lies in breaking the domination of the one-sided narrative that was largely imposed by powerful lobbies and interest groups that benefit from the exploitation and abuse of women’s bodies and seek to legitimize it. When prostituted women’s testimonies are given the weight they deserve; when the data is allowed to speak for itself, it is clear that prostitution is a system of violence against women and girls.
Childhood Sexual Abuse Among Asian-American Adults: Prevalence, Cultural Barriers, and Mental Health Implications
Authors:   Boise State University, USA, Chaliawala Kruti S , Rojas-Guyler Liliana ,   University of Cincinnati, USA
Published: February 2025

Childhood sexual abuse represents a significant public health concern, particularly within minority populations, where adversities and complications are prevalent but understudied. This study aims to investigate the mental health of Asian American childhood sexual abuse survivors and explore the prevalence of childhood sexual abuse among Asian adults. A secondary analysis of the 2020 Behavioral Risk Factor Surveillance System (BRFSS) data was conducted, including a final sample of 1,894 Asian adults (0.16% of the total sample size of N = 401,958). Among these participants, 16.8% (n = 1,894) reported experiencing CSA. The most common forms of abuse were inappropriate touching (11.8%, n = 224), being forced to touch someone inappropriately (7.2%, n = 136), and being forced to have sex (4%, n = 76). Regression analysis revealed that CSA was significantly associated with lower education levels (OR = 1.32) and higher income (OR = 1.79), suggesting socioeconomic factors play a role in CSA reporting. Within Asian American communities, childhood sexual abuse remains a taboo topic, leading to a reluctance among adults to engage in sexual health research. This brief report highlights the dearth of research and the stigma surrounding discussions of sexual abuse among Asian American adults. There is a critical need for early intervention programs that focus on the mental health of childhood sexual abuse survivors, particularly within minority communities such as Asian Americans. Addressing this issue can support those affected and help reduce the disparities minority populations face.
Intervju med Per Anders Rudling
Authors: Redaksjonen
Published: February 2025

Dette er det 10. intervjuet i tidsskriftets løpende Forskerhjørnet-serie.
Pemanfaatan Aplikasi Canva dalam Peningkatan Keterampilan Menulis Teks Berita Siswa tingkat SMP
Authors: Wulandari Novita , Murniviyanti Liza , Armariena Dian Nuzulia
Published: February 2025

This study explores the development of Canva-based learning videos aimed at improving news text writing skills among seventh-grade students one of the Junior High Schools in Palembang. The primary objective is to evaluate the effectiveness of these videos in enhancing students' writing abilities. The research employs a Development and Research (R&D) methodology, utilizing the ADDIE model, which includes five phases: Analysis, Design, Development, Implementation, and Evaluation. Data collection methods consist of observations, questionnaires, tests, and documentation. Findings indicate that the developed learning videos are valid, practical, and effective. Validation results show an average score of 94% for material quality, 95% for media quality, and 90% for language quality, based on expert evaluations. Practicality is confirmed by a 100% positive response rate from educators' questionnaires. Effectiveness is demonstrated by a significant improvement in student performance, with an average pre-test score of 19.25 and a notable N-Gain value of 0.77 from post-test results.These findings suggest that Canva-based learning videos are a viable tool for enhancing writing skills in news text among middle school students.
Unlocking the potential of Google’s mobility data
Authors: Bock Benno Benjamin , Schönduwe Robert
Published: February 2025

The widespread adoption of smartphones has facilitated the collection of multimodal mobility data. Google Location History (GLH) has gained considerable popularity and has a large user base. This article discusses the importance of GLH data and illustrates its value by identifying specific use cases. It also presents ongoing initiatives in which individuals donate GLH data for research purposes. In particular, the adequacy of the collected data is validated, demonstrating their reliability and suitability for rigorous analyses.
Automotive vehicles need an all-round view to minimize traffic fatalities
Authors: Marenko Kobi
Published: February 2025

Chrysler introduced the first driver assistance system in the form of cruise control in 1958. Cruise control was able to automatically control longitudinal acceleration, but it was not able to “see” its surroundings. The automotive industry is now about to make a huge technological leap, with high-definition imaging radar playing a much larger role. However, in order to further support drivers and make road traffic even safer – moving toward vision zero – it is necessary for all data from all sensors and from every direction to be processed together. This all-around view creates a 360-degree image of the driving environment that identifies stationary objects and the size and shape of obstacles, thus providing information on whether an area is passable or not.
Internet Access by Voice Commands: Navigation Application for Facebook, Gmail and Chrome
Authors: Mosquera Cruz José Hernando , Loaiza Correa Humberto , Nope Rodríguez Sandra Esperanza
Published: February 2025

A system to navigate the internet using voice commands is presented. The implemented tool allowed verbal control of Google Chrome, Gmail and Facebook applications. The tests were conducted on a group of 33 people with different experiences browsing the Internet composed of young adults, older adults and people with motor disabilities. Each of the applications was tested separately using guided dialogues with voice commands and dictations. In the speech recognition system’s tests, 2871 voice commands and 594 dictations were used, observing a better result for voice commands in the Facebook application and dictation in the Google Chrome application. A general average of 84.69% with a standard deviation of 6.45% was obtained for the recognition of voice commands, and 74.63% with a standard deviation of 2.75% for the recognition of dictations
Estudio técnico comparativo de levantamientos topográficos en terreno montañoso realizados con estación total, equipos GNSS, y UAV de consumo con y sin apoyo de puntos de control
Authors: Chaves Pabón Saieth Baudilio , Muñoz Serna Eder Felipe
Published: February 2025

El objetivo del presente trabajo es realizar una comparación de tres tecnologías topográficas usadas comúnmente en el mapeo de terrenos montañosos: estación total, equipos GNSS y UAV de consumo. En esta comparación tomamos en cuenta criterios cronológicos, y técnicos para determinar las ventajas y desventajas de cada una de las tecnologías analizadas. En este estudio se determinó que las antenas GNSS, siempre y cuando cuenten con recepción satelital y una comunicación entre base y rover óptimas, ofrecen el mejor desempeño comparadas con las otras dos. Estas obtuvieron una precisión similar a la conseguida con estación total, con tiempos de ejecución considerablemente menores. En segundo lugar, se encontró que los datos recolectados con UAV, con puntos de control, permitieron realizar una descripción geomorfológica de la zona cuya precisión es sensiblemente inferior a la conseguida con las otras dos tecnologías analizadas.  Esto evidenció que, para conseguir mayor precisión, es necesario realizar una alta densificación de puntos de control, aun cuando esto suponga un aumento de los tiempos de trabajo en campo.
Comparación de técnicas de reconstrucción de señales fonendoscópicas para el análisis de patrones acústicos cardíacos
Authors: Rojas Arango Gabriel Felipe , Corredor Bedoya Andrea Carolina
Published: February 2025

Este estudio evalúa la efectividad de diferentes técnicas de reconstrucción estadística de señales fonocardiografíca en comparación con técnicas clásicas de procesamiento. Se presenta el planteamiento del problema abordando las limitaciones actuales y las posibles ventajas de las técnicas de reconstrucción estadística de señales. El objetivo principal es determinar la precisión y utilidad clínica de estas técnicas en cuanto a la claridad de la señal a través del SNR y CF, así como explorar su potencial para una integración más amplia en la práctica clínica. La metodología empleada incluye un análisis comparativo de datos reconstruidos mediante técnicas estadísticas y procesados mediante técnicas de procesamiento relevantes, enfocándose en la claridad de la señal y la viabilidad de su implementación. Los resultados indican que ciertas técnicas de reconstrucción estadística pueden ofrecer mejoras en la claridad de la señal, con un SNR medio en PCA 17.41 dB comparado con el SNR medio en técnicas tradicionales 0.575 dB & un CF medio en PCA 10.948 mV comparado con el CF medio en técnicas tradicionales 10.880 mV. Las conclusiones sugieren que, a pesar de sus limitaciones, las técnicas de reconstrucción estadística tienen el potencial de mejorar la calidad de la señal cuando se utilizan junto con otras técnicas de procesamiento. Este estudio aporta una evaluación crítica sobre la aplicabilidad de las técnicas de reconstrucción estadística de señales fono cardiográficas y su papel en la mejora de la atención cardiovascular.
Sistema de trazabilidad de cacao soportado en Internet de las cosas
Authors: Gómez Gómez Jorge , Parra Urueta Camilo Andrés , Guzmán Pineda Juan José
Published: February 2025

Esta investigación asegura la trazabilidad y seguridad alimentaria en el proceso agroindustrial del cacao, desde la semilla hasta la comercialización. Se desarrolló un sistema de trazabilidad basado en Laravel, una aplicación web y una API REST para la gestión y comercialización, y un dispositivo IoT con sensores (Raspberry Pi) para monitorear la fermentación, cumpliendo la norma NTC 1252. El proyecto, en Tierralta, Córdoba, involucró tres fases: caracterización de necesidades de productores, desarrollo del sistema y pruebas con capacitación. Además, se implementó una línea de tiempo interactiva con Next.js para visualizar procesos. Esta solución mejora la calidad del producto, optimiza recursos, y genera datos clave para decisiones futuras, permitiendo la sistematización y estandarización de procesos, así como la identificación de fortalezas y debilidades en la cadena de producción del cacao.
Modelo de innovación para fincas productoras de café especial en Colombia
Authors: Ramírez Zuñiga Eyder James , Castro Silva Hugo Fernando , García Cruz Ehidy Karime
Published: February 2025

Esta investigación tiene como objetivo analizar las actividades de innovación desarrolladas en los procesos de producción, distribución y comercialización del café especial en Colombia, con el fin de diseñar un modelo de innovación que permita identificar los factores clave para mejorar la competitividad del sector. El modelo propuesto se fundamenta en un análisis de regresión logística, mediante el cual se identificaron variables críticas para la producción de café sostenible, incluyendo: la identificación y gestión integral de residuos en todas las etapas del proceso, la adopción de tecnología digital y la flexibilidad ante el cambio. Se espera que este modelo contribuya al conocimiento del sector y promueva mayores niveles de eficiencia y beneficios para los actores involucrados en la cadena de suministro de café especial en Colombia.
Fault detection and diagnosis methods in HVAC systems
Authors:   Univerzitet u Istočnom Sarajevu, Fakultet za proizvodnju i menadžment Trebinje Bosna i Hercegovina, Kašiković Milica , Anđelković Aleksandar ,   Univerzitet u Novom Sadu, Fakultet tehničkih nauka, Novi Sad
Published: February 2025

Heating, ventilation and air conditioning systems are the biggest energy consumers in buildings. A more efficient system, which would consume less energy, can be achieved by timely fault detection. Increasing attention is being paid to different methods for fault detection and diagnosis in heating, ventilation and air conditioning systems due to the adoption of building automation systems and the advancement of data and machine learning techniques. These methods can be divided into model-based, knowledge-based, and data-driven methods. The paper provides an overview of different methods, and the greatest attention is paid to data-driven methods due to their high accuracy and faster and cheaper model development.
Assessment of thermal energy storage unit coupled with air-source heat pump
Authors:   Kocaeli University, Engineering Faculty, Mechanical Engineering Department, Umuttepe Campus, Kocaeli, Turkey, Yilidiz Çağatay , Secilmis Mustafa ,   Kocaeli University, Hereke Asım Kocabıyık Vocational School, Electric and Energy Divison, Kocaeli, Turkey, Arici Müslüm ,   Kocaeli University, Engineering Faculty, Mechanical Engineering Department, Umuttepe Campus, Kocaeli, Turkey, Li Dong ,   Northeast Petroleum University, School of Architecture and Civil Engineering, Daqing China, Nižetić Sandro ,   University of Split, FESB, Split, Croatia
Published: February 2025

Coupling thermal energy storage systems to heat pumps is an effective way to manage the utilization of thermal energy with respect to its demand. In this work, a thermal energy storage (TES) unit consisting of water and phase change material (PCM) was investigated experimentally by a laboratory scale test rig where lauric acid was used as PCM. The experiments were conducted for the cases including only water inside the TES unit and for those involving water and PCM inside the TES unit, separately. Using the data obtained from the experiments as well as by the knowledge of the system operation, a numerical model was established via grey-box modeling approach. Developed model allowed to investigate an impact of various PCMs and different effective thermal conductivity values of PCMs on the heating times, as well as the load shifting potential, in consideration of four different heating loads. The experimental results showed that incorporation of lauric acid into the TES unit resulted in lower heating times by 16% during thermal discharge; however, its inclusion improved the coefficient of performance significantly. Furthermore, the load shifting index was also improved by 10% using PCM, instead of using water only. Numerical outcomes revealed that using PCMs with high latent heat capacity and with a phase change temperature around the mean of the lowest and highest water storage temperatures could help achieving longer heating time (~4%) during discharge. Besides, load shifting could be enhanced using the aforementioned PCM (RT44HC). Consequently, it was deduced that the low thermal conductivity of PCMs is significant challenge for thermal energy storage. The heat transfer enhancement implementations are strongly recommended to achieve further improvement in the aforementioned performance parameters.
The impact of surrounding structures on energy performance simulation of a primary school in Niš: Model refinement and simulation requirements
Authors:   Academy of Applied Technical and Preschool Studies Vranje Department, Vranje, Serbia, Jovanović Vladan , Ignjatović Marko ,   University of Niš, Faculty of Mechanical Engineering, Niš, Serbia, Ranđelović Dušan ,   University of Niš, Faculty of Civil Engineering and Architecture, Niš, Serbia, Stojiljković Mirko ,   University of Niš, Faculty of Mechanical Engineering, Niš, Serbia
Published: February 2025

This paper investigates the influence of surrounding structures on the energy performance of a primary school in Niš, focusing on their impact on energy consumption and shading. The study uses a reference energy consumption value of 177 kWh/m², established in prior research, as a benchmark to assess the changes introduced by nearby buildings. The primary aim is to understand how these structures affect the building's energy efficiency, particularly the thermal envelope, and to identify potential errors in the energy assessment process. Comprehensive simulations evaluate the effects of surrounding buildings on the school’s energy balance, considering factors such as shading, light reflection, and airflow. The study also examines how these structures contribute to a building's overall sustainability and energy stability, providing insights into optimizing energy efficiency in dense urban areas. Several scenarios are modeled to identify the most effective strategies for reducing energy consumption, tailored to the specific climate and urban characteristics of Niš. The findings from this research will offer valuable guidelines for improving architectural designs and urban planning, emphasizing reducing energy usage in similar settings. Additionally, this study highlights the importance of refining simulation models in complex urban contexts to ensure accurate energy performance predictions. The results may serve as a foundation for further exploration into building energy efficiency and have practical implications for sustainable city development.
Architectural Overreach: Investigating the Absence of Structural Engineers in Building Design – A Case Study in Herat, Afghanistan
Authors: Alkozay Arif , Faqiri Amanollah , Stankzai Rahimullah
Published: February 2025

In the realm of architectural design and construction, collaboration between architects and structural engineers is fundamental for ensuring the safety, functionality, and aesthetic appeal of built environments. However, in regions like Afghanistan's Herat province, such collaboration is notably absent, with developers predominantly engaging solely with architects, sidelining the crucial role of structural engineers. This paper investigates the factors contributing to this lack of collaboration, focusing on developers' tendencies to exclude structural engineers from construction projects. Through a quantitative survey targeting developers and architects across Herat province, key drivers such as limited awareness, financial constraints, and seismic risk concerns were identified. The results reveal a concerning lack of awareness among respondents, with a majority indicating no prior knowledge of the role of structural engineers in building design. Additionally, a significant proportion of developers admitted to foregoing structural engineering scrutiny for most of their projects, highlighting a pervasive disregard for structural integrity. Financial considerations emerged as a predominant factor influencing developers' decisions, with cost cited as a primary reason for excluding structural engineers from construction projects. Furthermore, concerns about seismic risks, particularly earthquakes, were identified as another significant determinant. The findings underscore the urgent need for educational initiatives to enhance awareness about the importance of structural engineering and foster collaboration between architects and structural engineers. Addressing these factors is critical for mitigating risks associated with structural failure and ensuring the resilience of built environments in earthquake-prone regions like Herat province.
Insulin-like growth factors in cat placenta
Authors: Hernández Rocío , Gomez Castro Gimena , Rodriguez Fernanda Mariel , Casas Luciano , Portiansky Enrique
Published: February 2025

Placental development involves maternal-fetal signalling events, and it is an under-researched topic in feline reproduction. Few studies of endotheliochorial placentas deal with insulin-like growth factors (IGFs), which are among the principal developmental regulators. While placental expression of IGFs and type 1 IGF receptor (IGF1R) has already been reported in bitches, data regarding the IGF system in queens are limited to uterine tissues. This study aimed to detect IGF1, IGF2, and IGF1R in fetal and maternal placental structures. Samples from twenty-three placentas were classified into one of two groups depending on gestational age (G1: ≤43 d.p.c; G2: ≥44 d.p.c) and processed by indirect immunohistochemistry. Labelling with all the antibodies was stronger in the endometrial glands of earlier placentas than in later ones. Maternal endothelium was moderate to strongly labelled, with a decreasing intensity in the endometrium, while the opposite occurred in the labyrinth. Cytotrophoblast cells were more strongly labelled than the syncytiotrophoblast. IGF1 and IGF1R-positive cells were more abundant in decidual cells of later placentas. These results support that the IGF system plays a central role during gestation and development in cats. As far as we know, this is the first report recording immunohistochemical IGFs/IGF1R detection in fetal regions of the feline placenta.
Identidad & Lenguaje en el diseño, la arquitectura, la historia y el arte
Authors: Herrera Gutiérrez de Velasco Luis Carlos , Moreno Rodríguez Juan , Martinez Leal Luisa , Ríos de la Torre Guadalupe , Gutierrez Trapero Olga Margarita , Serratos Zavala Laura Elvira , Peniche Bolio Jorge , Clavé Almeida Manuel Martín , Huarte Trujillo María Concepción , Esquivel Hernández María Teresa , Diaz Ávila Guadalupe , Collantes Vázquez Víctor Manuel , Robles Contreras Fabián , Rodríguez Mondragón Sandra
Published: February 2025

Se abordan desde distintas perspectivas, el tema del lenguaje y de la identidad, intentando responder qué son, pero sobre todo cómo se han manifestado particularmente en el ámbito de la Arquitectura, el Diseño y el Arte. Desde aspectos particulares o generales, cada autor nos ofrece una revisión de aquello que es el lenguaje en su conjunto práctico y dinámico y en dependencia de una identidad, generados a lo largo de la historia de la humanidad.
Investigation of the effects of propofol and sevoflurane anesthesia on oxidant-antioxidant status and biochemical parameters in Turkish hair goats
Authors: Gülaydın Ali , İrak Kıvanç , Şındak Nihat , Akgül Mustafa Barış , Çelik Özgür Yaşar , Yıldırım Onur , Yılmaz Maruf , Gülendağ Erman
Published: February 2025

Objective

To investigate the effects of propofol and sevoflurane anesthesia on the oxidant-antioxidant status and biochemical parameters in Turkish hair goats.

Methods

The study was conducted from February 15 through March 15, 2024. Seven clinically healthy female Turkish hair goats aged 1 to 2 years with an average live weight of 29.95 (26.1 to 33.8) kg were included. A bolus of propofol (6 mg/kg) was injected IV. The goats were placed in the sternoabdominal position and administered 1% to 3% sevoflurane with 100% oxygen for 2 hours with the help of a vaporizer. Blood samples were collected before and after the administration of propofol and at the 15th, 30th, 60th, and 120th minutes after the start of sevoflurane administration in nonanticoagulated tubes. The oxidant-antioxidant status (serum total antioxidant status, total oxidant status, paraoxonase activity, and arylesterase activity) and biochemical parameters (levels of glucose, AST, GGT, ALT, ALP, LDH, creatine kinase, amylase, lipase, creatinine, urea, uric acid, high-density lipoprotein, low-density lipoprotein, total protein, albumin, total bilirubin, direct bilirubin, magnesium, chlorine, calcium, iron, sodium, phosphorus, and potassium) were evaluated. The heart rate, respiratory rate, and body temperature of the goats were measured using a bedside monitor.

Results

Arylesterase activity increased with sevoflurane administration. Changes were observed in heart rate and body temperature as well as in the levels of glucose, creatine kinase, urea, total bilirubin, and potassium at different time intervals of propofol-sevoflurane administration.

Conclusions

Propofol-sevoflurane anesthesia has no adverse effects on oxidant-antioxidant status in Turkish hair goats.

Clinical Relevance

The evaluation of heart rate and body temperature, as well as glucose, creatine kinase, urea, total bilirubin, and potassium levels, must be considered in propofol-sevoflurane anesthesia protocol.