bluuebunny/crossref_metadata_2025 huggingface dataset:
Histopathological diagnosis of microvascular invasion in hepatocellular carcinoma: Is it reliable?
Authors: Li Liu-Jun , Wu Chao-Qun , Ye Fei-Le , Xuan Zhou , Zhang Xiao-Li , Li Jian-Ping , Zhou Jia , Su Zhong-Zhen
Published: December 2024

BACKGROUND

Microvascular invasion (MVI) is a critical prognostic factor for postoperative hepatocellular carcinoma recurrence, but the reliability of its current pathological diagnosis remains uncertain.

AIM

To evaluate the accuracy of current 7-point sampling methods and propose an optimal pathological protocol using whole-mount slide imaging (WSI) for better MVI detection.

METHODS

We utilized 40 New Zealand white rabbits to establish VX2 liver tumor models. The entire tumor-containing liver lobe was subsequently obtained, following which five different sampling protocols (A-E) were employed to evaluate the detection rate, accuracy, quantity, and distribution of MVI, with the aim of identifying the optimal sampling method.

RESULTS

VX2 liver tumor models were successfully established in 37 rabbits, with an incidence of MVI of 81.1% (30/37). The detection rates [27% (10/37), 43% (16/37), 62% (23/37), 68% (25/37), and 93% (14/15)] and quantity (15, 36, 107, 125, and 395) of MVI increased significantly from protocols A to E. The distribution of MVI showed fewer MVIs farther away from the tumor, but the percentage of MVI detected quantity gradually increased from 6.7% to 48.3% in the distant nonneoplastic liver tissue from protocols A to E. Protocol C was identified as the optimal sampling method by comparing them in sequence. The sampling protocol of three consecutive interval WSIs at the tumor center (WSI3) was further screened to determine the optimal number of WSIs. Protocol A (7-point sampling method) exhibited only 46% accuracy and a high false-negative rate of 67%. Notably, the WSI3 protocol improved the accuracy to 78% and decreased the false-negative rate to 27%.

CONCLUSION

The current 7-point sampling method has a high false-negative rate in MVI detection. In contrast, the WSI3 protocol provides a practical and effective approach to improve MVI diagnostic accuracy, which is crucial for hepatocellular carcinoma diagnosis and treatment planning.
New perspectives and prospects for the next generation of combination therapy in inflammatory bowel disease
Authors: Xie Wen-Ting , Yang Hui , Bai Lan , Wu Feng-Fei
Published: December 2024

This article comments on the letter by Lowell et al , which addresses the next generation of combination therapy for inflammatory bowel disease (IBD). As the understanding of the pathogenesis of IBD continues to improve, treatment strategies are evolving rapidly. The letter examines the current status and future directions of combination therapy for IBD, focusing on approaches that combine biologics with immunomodulators and the emerging dual-biologic therapy (DBT). The traditional combination of biologics and immunomodulators has demonstrated preliminary efficacy by enhancing the effects of biologics through immunomodulation. However, concerns regarding long-term safety warrant careful evaluation. Recent trials, including DUET-Crohn's disease and DUET-ulcerative colitis, have shown promising potential for the broader adoption of DBT. Nevertheless, comprehensive data on efficacy and safety, as well as the effective integration of supportive treatments, remain essential to establish new paradigms for the next generation of IBD care.
History, Subjectivity, and the Public Sphere in Greece: The Essay-films of Tonia Marketaki and Eva Stefani
Authors: Kechris Dimitris
Published: December 2024

The paper contextualizes and reflects on the essay-films John and the Street (1967) and Acropolis (2001) by prominent Greek filmmakers Tonia Marketaki (1942–1994) and Eva Stefani (b. 1964), respectively. Created at different moments in modern Greek history, the two films nonetheless address the tension between history and personal experience in the public sphere, especially as this tension marks the urban context of Athens. The analysis explores how the two films challenge hegemonic national narratives while tracing “subterranean” alternative subjectivities. It emphasizes the aesthetic practices developed by the filmmakers and examines whether these practices contribute to what Jacques Rancière has described as a possible reconfiguration of “the distribution of the sensible,” and whether they help to envision urban reality as a spatio-temporal field of ever emergent potentialities.
The Immersive Experience of the Era of Nuclear Energy in Emilija Škarnulytė’s Ecodocumentary Burial (2022)
Authors: Šukaitytė Renata
Published: December 2024

The article examines Emilija Škarnulytė’s essay documentary Burial (Kapi­nynas, 2022) and its unique approach to engaging the audience with the themes of nature, atomic energy, and the nuclear era. It discusses how immersive techniques of aural and visual narrative, consisting of visual and acoustic material from diverse sources, such as images of former uranium mines in Kowary, the decommissioned Ignalina Nuclear Power Plant, The Industrial Centre for Geological Disposal in France, fragments of paintings by Lithuanian symbolist M. K. Čiurlionis, Cold War-era television and radio footage, computer-generated 3D images of atoms and uranium ore, and ambient music, can stimulate emotional and intellectual responses to its subject, even though there are no characters to identify with and no clear plot or strong rhetorical devices to direct the viewer. The use of immersive technologies in Škarnulytė’s film creates the sense of a “living” environ- ment experienced in “real time,” drawing on terms introduced by Oliver Grau (2003). The article’s conclusions are based on a close examination of the film’s style and narrative, as well as theoretical work on immersive films and media by Oliver Grau (2003) and Kerric Harvey (2012). The concepts of ecocinema (Paula Willoquet-Maricondi, 2010), eco-cosmopolitan cinema (Ursula K. Heise, 2008), and the essay film (Laura Rascaroli, 2017) are chosen as the theoretical framework for analysing Burial.
Personal and Transpersonal Perspectives in Czech and Slovak Ecocritical Cinema
Authors: Dudková Jana
Published: December 2024

Inspired by the concept of “transpersonality” in contemporary psychology, this study seeks to expand its possible meanings – not only in relation to the sometimes overly mystical current ecocritical strands of thought, but even more significantly, in relation to contemporary trends in essayistic or experimental cinema. The study achieves this by analysing the films of three Czech and Slovak female directors, who are united by their ecological concerns stemming from the theme of (the planet as) home. Compared to more traditional examples of ecocriticism in these two local cinemas, the films analyzed here shift away from an objective viewpoint and the expository mode of documentary cinema toward essayistic narratives with a strong personal perspective. However, this shift occurs within a broader context of the need to overcome the personal as well – in favour of a multiperspectival perception of the fate of humanity, and toward a “transpersonal perspective” as an ecological choice. Through the analyses of selected films, the study shows different stages of this process and suggests that the transpersonal perspective can be understood precisely as a deliberate ecological choice – one that embraces a personal viewpoint in order to transcend it in a post-anthropocentric fusion between human perspective, nature, and the universe.
Representing the Self. Cinematic Autobiography and Auto-Fiction in Post 1990 Slovak Nonfiction Cinema
Authors: Mišíková Katarína
Published: December 2024

Techniques of representing the Self in literature and pictorial arts have a long-standing tradition in the genres of autobiography and self-portraiture. Cinematic self-documentation enables the filmmakers to capture memories and images as part of their journey toward self-knowledge in response to coping with both global and personal changes. This paper explores selected Slovak documentary films in which the directors employ essayistic forms of the cinematic medium to represent the Self through a multiplication of identities with varying degrees of referentiality to the real world. It analyses autobiographical films Home Movie, A New Life of a Family Album, Self-Portrait, The Last Self-Portrait, Notes from Eremocene, +-90, and Wave vs. shore, examining the spectrum of referential autobiographic alter egos created by the authors of these nonfiction films.
“My Mother’s Not an Actress.” Images of Intimacy in Galician Cinema
Authors: Tenreiro Uzal Cibrán , Pérez Pereiro Marta
Published: December 2024

In recent years, different disciplines have experienced what has been labelled as an “affective turn,” where intimate experiences and emotions have gained prominence in both academic research and creative practices. Cinema has not been an exception to this tendency, as digital technologies (and Internet culture) have eased access to self-expression and fostered a renewed interest in portraying previously marginalized and peripheral identities.
As a peripheral nation, Galician culture – and cinema in particular – has been substantially involved in processes that show the presence of this affective turn. Landmark films of Novo Cinema Galego (New Galician Cinema) address collective experiences, such as emigration, from a personal perspective. Many filmmakers, including Marta Valverde, Eloy Domínguez Serén, or Antía Carreira, have combined the traditions of personal cinema with new displays of intimacy like selfies and other social media techniques. This article examines the different modes of enunciation they employ to convey intimacy – diaries, correspondences, self-portraits, and the remixing of personal archive material – and explores how these practices relate to the prevailing production conditions in minor and small cinemas.
Peranan Al-Qur'an dalam Menyikapi Praktik Pernikahan Sirri
Authors: Aprianti Sheila , Galib Muhammad , Abubakar Achmad
Published: December 2024

Sirri marriages are marriages not officially registered marriages with state institutions, conducted secretly, or otherwise not made public. The practice has drawn past controversy in Islamic law and state law, particularly with regard to protection rights for women and children. In the eyes of Islamic law, this marriage is legitimate if it fulfills the conditions and pillars as established in the presence of a guardian (wali), two witnesses, and the submission of the marriage contract (ijab and qabul). The fact of an unregistered marriage implies potential legal and social problems associated with its consonance with the values of justice and transparency according to the Qur'an. This research intends to study the Qur'an's role in addressing the occurrence of unregistered marriages, particularly covering verses focusing on the importance of documentation, testimony, and openness in marriage affairs. A hermeneutical approach will help unravel the meanings of Qur'anic verses such as QS. Al-Baqarah [2]: 282 and QS. An-Nisa' [4]: 1 in attempts to establish a more holistic legal interpretation of the findings, suggesting that unregistered marriages qualify as legitimate in religious terms if they meet the pillars and conditions; however, this practice is contradictory to the major principles of transparency and justice and the protection of rights that the Qur'an teaches. Hence, it recommends the requirement of registration as one of these forms of *maṣlahah mursalah* and, thus, a public benefit to prevent social unrest and maintain rights of all concerned parties. This will thus provide a considerable found basis for addressing unregistered marriages from the purview of the Qur'an concerning whether or not they can be religiously valid and legally certain.
Assessing handwriting skills in a web browser: Development and validation of an automated online test in Japanese Kanji
Authors: Inoue Tomohiro , Chen Yucan , Ohyanagi Toshio
Published: December 2024

Online language and literacy assessments have become prevalent in research and practice across settings. However, a notable exception is the assessment of handwriting and spelling, which has traditionally been conducted in person with paper and pencil. In light of this, we developed an automated, browser-based handwriting test application (Online Assessment of Handwriting and Spelling:
OAHaS) for Japanese Kanji (Study 1) and examined its psychometric properties (Study 2). The automated scoring function using convolutional neural network (CNN) models achieved high recall (98.7%) and specificity (84.4%), as well as high agreement with manual scoring (95.4%). Additionally, behavioral validation with data from primary school children (N = 261, 49.0% female, age range = 6–12 years) indicated the high reliability and validity of our online test application, with a strong correlation between children’s scores on the online and paper-based tests (r = .86). Moreover, our analysis indicated the potential utility of writing fluency measures (latency and duration) that are automatically recorded by OAHaS. Taken together, our browser-based application demonstrated the feasibility and viability of remote and automated assessment of handwriting skills, providing a streamlined approach to research and practice on handwriting. The source code of the application and supporting materials are available on Open Science Framework (https://osf.io/gver2/).
Yield prediction of field vegetables using functional regression model and deep learning algorithm
Authors:   The Korean Data Analysis Society, Kang Jinho , Liu Zhuolin , Na Meong-Hwan
Published: December 2024

Modern agriculture requires the development of new AI-driven farming methods that can achieve maximum yields while minimizing the use of fertilizers, energy resources, and labor. Therefore, this study aims to propose smart agricultural technologies that can optimize economic efficiency by accurately predicting crop yields in advance through frequent monitoring of the growth status of field vegetables, such as onions and garlic, and appropriately adjusting the supply and demand of the harvested products. An experimental unit was set up at the Research Institute in Muan-gun, Jeollanam-do. The fertilizer levels were set at four different levels based on a standard amount. Multispectral images were collected at regular intervals during the cultivation period of onions and garlic in each plot, and 10 vegetation indices were extracted from these images. As a result of the experiment, for onions, the model combining 1D-CNN with the sheath length variable showed the best performance, followed by the model combining 1D-CNN with RECI and the model combining 1D-CNN+BiLSTM with MNGRD. For garlic, the model combining 1D-CNN with the sheath length variable was also the most accurate, followed by the model combining 1D-CNN with NGRD and the model combining 1D-CNN+BiLSTM with the sheath length variable.
A Study On Media Consumption Patterns Through BERTopic And GCN-based Keyword Analysis
Authors:   The Korean Data Analysis Society, Jin HyeongJong , Seo Young Soo , Cheon Sooyoung
Published: December 2024

In the modern society, media consumption patterns are rapidly changing, and this is particularly evident in the preference for TV media. According to the media panel survey for TV media preference, the drama was the most preferred content in 2013, but the news became the most preferred content in 2023. To analyze these changes, this study analyzed news and drama articles using GCN and BERTopic. As a result, news-related keywords have increased significantly in 2023, suggesting that public interest in news has increased. In addition, it was analyzed that the preference for drama in TV media has decreased as people watch dramas on mobile devices instead of TV due to the spread of OTT services. These results provide important clues for understanding the changes in media consumption patterns and can be used as useful data for establishing media content strategies in the future.
Analysis of Temperature Changes in Korea via Change Point Detection Algorithm
Authors:   The Korean Data Analysis Society, Park Hyunwoo , Shin Seung Jun , Yoon Gyun-Soo
Published: December 2024

Global warming is increasingly recognized as a pressing global issue, with South Korea experiencing a rate of temperature increase exceeding the global average. The impacts of these climatic changes span various sectors, emphasizing the need for a deeper understanding of temperature trends and their implications. This study investigates long-term temperature trends in South Korea by applying popular change point detection (CPD) algorithms to identify when significant temperature changes occurred. Using daily average temperature data from eight major cities from 1969-2023, we employ CPD methods such as binary segmentation, PELT, window sliding, and bottom-up segmentation to pinpoint and compare temperature change points in time-series data. Consequntly, significant change points were detected in 1987 and 2014. Our findings underscore the presence of critical temperature shifts and the growing urgency for South Korea to implement nationwide strategies in response to this accelerating climate change.
Prediction of Milk Production in Dairy Cows Using Statistical Regression Model and Machine Learning Methods
Authors:   The Korean Data Analysis Society, Kim Minji , Kang Sooram , Na Myung Hwan
Published: December 2024

Prediction of milk production from dairy cows can be used as an important indicator to evaluate the productivity of livestock farms. This study proposes methods to predict milk production from dairy cows raised in livestock farms by period. To this end, the study was conducted in three steps. First, a livestock farm in Boseong-gun, Jeollanam-do was selected, and feed intake, age, parity, number of milking days, and milk production were collected for each of 49 dairy cows. Second, based on the collected data, statistical analysis was performed to find out how much the four characteristics affect milk production through scatter plots and correlation analysis. Third, in order to accurately predict the milk production of each dairy cow by period, four prediction models were used: the linear regression model, random forest regression model (RFRM), XGBoost technique and 1D-CNN+BiLSTM. Through various experimental results, it was found that the machine learning methods, random forest and XGBoost methods, had the best predictive power, followed by 1D-CNN+BiLSTM model, while the linear regression model had the worst predictive power. In addition, through the XGBoost analysis technique, it was found that the variables that had the greatest influence on milk production were age, milking days, feed intake, and parity, in that order.
Estimating the Prevalence of Depression by Area Using a Bayesian Pooled Model with Covariate Correction
Authors:   The Korean Data Analysis Society, Jo Ae Jeong , Jang Eun Jin
Published: December 2024

In spite of nationwide large-scale surveys, sample size issues may arise when estimating for small areas such as towns. In these cases, hierarchical Bayesian pooling models can enhance the reliability of estimates by borrowing information from similar surrounding areas. Hierarchical Bayesian pooling models can share information between areas either directly or indirectly through hyperparameters defined in the prior distribution, thereby reinforcing limited sample information. However, an over-shrinkage problem can arise during the information-sharing process. This study aims to establish a structural model incorporating a generalized linear regression model with regional characteristic covariates for the hyperparameters responsible for sharing information between areas. This approach accounts for variations according to regional characteristic covariates while facilitating the sharing of regional information through intercept terms, thereby producing reliable small area estimates. Meanwhile, using the established hierarchical Bayesian regression model, we estimated the prevalence of depression in small areas, and identified and examined the covariates responsible for regional variations.
What Determines the donation expenditures of public institutions?
Authors:   The Korean Data Analysis Society, Kim Jiyoung
Published: December 2024

Public institutions in Korea make a considerable amount of expenditure on corporate donations. This paper examines what determines corporate donations of public institutions using the firm-level panel data on 150 public institutions in Korea, from 2019 to 2023. The estimation results show that the donation expenditures increase as the debt ratio is lower, and the effective corporate tax rate of previous period is higher. However, ROA is not related with donation expenditure. The results also find out that public institutions’ donations are affected by the government evaluation. Donation expenditures increase when the CEO of the public institution is paid higher bonus, and when the it purchases more environment-friendly products. In 2022, the government evaluation for public institutions assigned less points on corporate social activity. Year dummies are included to investigate the effect of an evaluation change, and the results show that donation expenditures remarkably decreases as less points are assigned.
A Study on the Analysis of Risk Factors for Crime Prevention in Multi-Family Housing
Authors:   The Korean Data Analysis Society, Kwon Younghun , Yoo Seongsang , Kim Taehun
Published: December 2024

The increase in single-person households is one of the phenomena that is attracting attention in modern society. This study analyzes the risk factors of living in multi-family houses and studies and analyzes how safety facilities are installed and managed to propose improvement measures. The survey was conducted by deriving 7 detailed factors, including the experience of crime damage, fear of crime, and installation of safety facilities, etc. In addition, the installation status of image information processing devices, which are physical safety facilities, was investigated and analyzed. As a result of the survey, the improvement of the risk exposure to crime and the installation and maintenance of safety facilities were investigated as very important factors. The fear of crime did not show significant differences by age or household size, and it was found that the fear of all types of crime has increased. Although crime prevention standards have been established as related laws, multi-family houses are classified as recommended applications, and the blind spots of crime have been identified. Therefore, it is proposed that the crime prevention standards are mandatory for multi-family houses. In addition, it proposes the necessity of enacting laws that can enforce management because the maintenance standards of image information processing devices, which are physical safety facilities, do not have legal regulations. This study emphasizes the importance of residential safety and living environment, and believes that it can be used as an important study that can greatly affect the safety and welfare of society.
The Impact of Industrial Safety and Health Supervision on Accident Rates in Workplaces with Fewer than 50 Employees: Focusing on the Daejeon and Chungnam Region
Authors:   The Korean Data Analysis Society, Choi Panseon , Kim Taehun
Published: December 2024

Recently, the serious accident punishment act has led to increased interest in establishing autonomous safety systems in industrial sites. However, the effectiveness of industrial safety and health supervision has not been significantly highlighted. This study examined the impact of industrial safety and health supervision on accident rates in manufacturing companies with 5 to 50 employees in the Daejeon and Chungnam regions. the Analysis of data from 32 sites revealed that companies receiving supervision experienced a positive reduction in accident rates compared to before supervision. the Effectiveness of this supervision was most significant within three years after its implementation. Additionally, the reduction in accident rates for supervised companies was 2.9 times greater than for unsupervised companies, with the gap widening during the effective performance period. This study underscores the importance of industrial safety and health supervision in reducing accident rates, suggesting that continuous oversight by administrative agencies can lead to improved safety outcomes.
Influence of Corporate Communication in Organisational Efficiency in South -South Nigeria
Authors: Igben Harvey G.O. , Naenwi Dorka Better
Published: December 2024

This paper examined the influence of corporate communication in organisational efficiency in South-South Nigeria. Three (3) research questions offer the guide for this study. This study adopted descriptive research design. The population of this study comprises staff including managers and administrative staff from twenty-nine (29) organizations in South-South, Nigeria. From the study population of approximately seven thousand and fifty-six (7056) staff extracted from twenty-nine (29) organizations in South-South, Nigeria, a sample size of one hundred and forty-nine (149) was through a simple random sampling technique. The sample size which comprised the managers and administrative staff were selected from thirteen (13) organizations in South-South, Nigeria. A self-administered research instrument was used for primary data collection. Findings showed that there is a significant relationship between effective communication and workers’ efficiency in South-South Nigeria. The study recommends that management of organization should establish and implement regular transparent communication strategy, digital communication infrastructure and prioritized employee oriented interaction.
Government Policies and Performance of Pharmaceutical Firms in South-East, Nigeria
Authors: Ujomudyke Christopher Chinedu , Dike Goodfaith Nnenna , Okeke Chidimma Odira , Eboh Obinna Solomon
Published: December 2024

The study aimed at investigating the effect of government policies and performance of pharmaceutical firms in South-East, Nigeria the specific objectives were; Determine the extent of relationship between tax policies and competitive advantage of Pharmaceutical industries in South-East, Nigeria; Evaluate the effect of regulatory policies and quality control of Pharmaceutical industries in South-East, Nigeria; The research work was anchored on and rational-choice theory. Survey research design was adopted. The population of the study was 1881. The statistical formula devised by Borg and Gall (1973), was employed to arrive at a sample size of 361. Pearson product-moment correlation analysis method was used in testing the hypotheses. The result of the hypotheses showed that Tax Policies has a significant positive effect on competitive advantage of Pharmaceutical industries in South-East, Nigeria. Pearson’s product moment correlation coefficient values between tax policies and competitive advantage of Pharmaceutical industries revealed (r = 0.769, p<0.05); Regulatory Policies has a significant positive effect on quality control of pharmaceutical industries in South-East, Nigeria. Pearson’s product moment correlation coefficient values between regulatory policies and quality control shows (r = .790, at p<0.05). The study concluded that that government policies has significant positive effect on performance of pharmaceutical industries in South-East, Nigeria. The study recommended that Nigeria government should introduce tax exemptions on some specific medicines or active pharmaceutical ingredients, eliminate or reduce custom duties on pharmaceutical products and reduce the rate of value-added tax (VAT) to pharmaceutical products or specific medicines among others.
Correlates of Depression Among Final Year Students in Rivers State University, Port Harcourt, Nigeria
Authors: Ahiakwo. S. N.
Published: December 2024

The present study focused on correlates of depression among final year students Rivers State University, Port Harcourt. Rivers State, Nigeria. The researchers adopted that correlational research design in the study. This was because they wanted to investigate the relationship between lack of finance, poor academic performance as well as poor social support and depression among final year students in the Rivers State University. The population of the study comprised of all final-year undergraduate students during the 2023/2024 academic session. The sample size used for this study was 200 students from the faculty of Education. The sampling technique used was the multi-stage sampling technique. Two questionnaires were developed by the researcher and were tagged “Correlates of Depression Questionnaire” (CDQ) and “Depression Scale” (DS). Validation of the instrument was carried out by two experts in the field of Measurement and Evaluation. The reliability of the instruments were ascertained using Cronbach Alpha method. With reliability indices of 0.67 and 0.76 respectively for CDS and DS respectively. Simple regression was used to analyse the data. Result of the study showed that lack of finance (p=0.009<0.05) as well as social support (p=0.002<0.05) all has significant relationship with depression among final year students in Rivers State University. On the contrary, academic performance, (p=0.719>0.05) had no significant relationship with depression among final year students in Rivers State University. Based on these findings, it was recommended among others that government should subsidize education to enable some student especially final year to cope in school. Again, more scholarship and students grant should be provided to help students pass through school with ease.
Efficiency Measures of a Class of Regular-Graph Semi-Latin Rectangles with Block Size Two and Odd Number of Treatments
Authors: Nse H. U. , Uto N. P. , Iseh M. J.
Published: December 2024

A semi-Latin rectangle (SLR), denoted (h × p)/k, is a row-column design consisting of v treatments in h rows and p columns (where h may or may not be equal to p), where each row-column intersection (cell) which constitutes a block contains k treatments and each treatment of the design occurs the same number of times in each row, denoted n_r and the same number of times in each column, denoted n_c (where n_r and n_c need not be all 1). Regular-graph semi-Latin rectangles (RGSLRs) are SLRs which possess the property that, for any two pairs of distinct treatments, their concurrences differ by at most one. This work considers RGSLRs with k = 2, where the number of treatments (v) is odd and h = p = v, which are the smallest RGSLRs for odd values of v. Construction for such design is given in Uto and Bailey (2022). However, the foregoing paper does not give the efficiency measures of these designs. We determine the A-, D- and E-efficiency measures of these designs for some odd values of v to give information on how good the designs are for experimentation. Results show that the designs have good efficiency measures, hence are good designs for experiments involving designs of their sizes.
Factores de Riesgo Asociados a la Aparición del Síndrome de Burnout en Estudiantes de las Ciencias Agrarias: Una Revisión Sistemática
Authors: Sánchez Prado Robert Gustavo , Riofrio Romero Nathaly Ragde , Guzmán Vera Micaela Pilar , Macas Apolo Freddy Fausto , Sánchez Prado Raquel Estefanía
Published: December 2024

El burnout académico, caracterizado por agotamiento emocional, cinismo y baja autoeficacia, es frecuente en estudiantes de ciencias agrarias debido a la sobrecarga académica, la falta de motivación y las limitadas perspectivas laborales. Este estudio revisa sistemáticamente investigaciones recientes sobre factores de riesgo de burnout en este grupo, seleccionando 10 estudios relevantes de bases de datos como PubMed y Google Académico. La metodología consistió en la búsqueda de artículos publicados en los últimos diez años que abordaran el burnout en estudiantes de agronomía, veterinaria y carreras afines. Se encontraron factores de riesgo comunes como la elevada carga académica, el desajuste entre formación y mercado laboral, y la falta de apoyo pedagógico, que exacerban el agotamiento. Además, la falta de relaciones interpersonales de calidad y de prácticas saludables, como el ejercicio y el sueño adecuado, incrementan el riesgo de burnout. Se concluye que es urgente implementar programas de apoyo y ajustar el contenido curricular a las necesidades del mercado para reducir el agotamiento en estos estudiantes. Estas medidas no solo mejorarían el bienestar estudiantil, sino que también fortalecerían el sector agrario, promoviendo el desarrollo de profesionales comprometidos y resilientes.
Impacto del Escepticismo en los Factores de la Teoría del Comportamiento Planificado y la Intención de Compra de Productos Orgánicos
Authors: Cruz Oña Ariel Omar , Usiña Báscones Gabriel Germán , Samaniego Arias Mayra Alexandra
Published: December 2024

Este estudio tiene como objetivo analizar los factores que influyen en la intención de compra de productos orgánicos entre los millennials, utilizando la Teoría del Comportamiento Planificado (TCP) como marco teórico. Para ello, se consideraron variables como actitud, normas subjetivas, control de comportamiento percibido y escepticismo, evaluando su relación con la intención de compra. La metodología empleada fue de tipo cuantitativo, descriptivo y de diseño transversal, con una muestra de 566 estudiantes universitarios de la Provincia del Guayas, Ecuador. La recolección de datos se realizó mediante encuestas con una escala de Likert de cinco puntos, y se utilizó AMOS 24 para el análisis estadístico, desarrollando un Análisis Factorial Confirmatorio (AFC) y un Modelado de Ecuaciones Estructurales. Los resultados mostraron que el modelo presentó un ajuste adecuado, con indicadores de bondad de ajuste satisfactorios, tales como CFI, TLI y RMSEA, lo cual validó el modelo propuesto. Se aceptaron las hipótesis que indican que la actitud, normas subjetivas y control de comportamiento influyen en la intención de compra, mientras que el escepticismo afecta negativamente estos tres factores. Estos hallazgos sugieren que, para incrementar la intención de compra de productos orgánicos entre los millennials, es necesario abordar el escepticismo mediante estrategias de comunicación y educación que generen confianza en los beneficios ambientales y de salud de estos productos.
Protocolo de Escazú y Derechos Humanos Colectivos, en la Región Tula-Tepeji, ante el Desarrollo Económico-Industrial
Authors: Tovar Tovar Javier
Published: December 2024

Es indispensable promover y salvaguardar lo dispuesto en el protocolo de Escazú, el derecho humano a una vida digna, a un medio ambiente sano y a un desarrollo sustentable, en la región Tula-Tepeji, pues es obligación del Estado Mexicano garantizar los derechos de acceso a la información ambiental, participación pública en los procesos de toma de decisiones ambientales y acceso a la justicia en asuntos ambientales, así, como la protección de defensores de derechos humanos ambientales, de acuerdo al protocolo de Escazú del 4 de marzo del 2018. Y así ponderar entre los referidos derechos colectivos y un desarrollo económico-industrial que acrece en la región.
Impacto en la Comprensión y Aplicación del Diseño Gráfico de Levas con Seguidor de Rodaja en la Ingeniería Mecánica a través de la implementación de plantillas electrónicas
Authors: Medina Guzmán Edgar Daniel , Belmares Rodríguez Aarón , Murguía Pérez Daniel , Díaz Cuevas Héctor Manuel , Baltazar Ramirez J. Rosario Esau
Published: December 2024

Las levas son componentes mecánicos fundamentales en la ingeniería, utilizados principalmente para convertir el movimiento rotatorio en movimiento lineal. Este proceso es crucial en una variedad de sistemas, como los motores, máquinas herramienta y mecanismos de transmisión. El diseño de una leva requiere una evaluación detallada de su geometría y dinámica, ya que estos aspectos influyen directamente en la precisión, eficiencia y rendimiento del sistema al que están integradas. La configuración del perfil de la leva determina el tipo de movimiento generado, lo que impacta variables críticas como la velocidad, aceleración e inercia del mecanismo. De esta manera, el diseño de la leva es clave para lograr un funcionamiento preciso y duradero del sistema mecánico.
Con los avances tecnológicos, la optimización del diseño de levas ha experimentado importantes mejoras. El uso de software especializado de modelado y simulación permite a los ingenieros realizar ajustes en los perfiles de las levas de manera más precisa y eficiente, evaluando su rendimiento antes de la fabricación. Asimismo, la incorporación de materiales innovadores mejora la resistencia y fiabilidad de las levas en condiciones extremas de operación. En este contexto, la implementación de plantillas electrónicas para el diseño gráfico de levas con seguidor de rodaja representa una herramienta poderosa para optimizar el proceso de diseño, facilitando la creación de perfiles más complejos y ajustados a las necesidades del sistema. Este artículo analiza los principios fundamentales del diseño de levas y su aplicación en la ingeniería mecánica, con un énfasis particular en el uso de tecnología avanzada para mejorar la comprensión y aplicación de estos componentes.
Hilos de Significado: Análisis Estructural y Simbólico de los Tejidos en la Cultura T’simane
Authors: Moreno De la Quintana Ernesto Gabriel
Published: December 2024

La textilería boliviana, profundamente arraigada en las tradiciones culturales de las regiones andino-amazónicas, representa una auténtica expresión y representación de arte, cultura e identidad. A través del uso de lana y algodón, los tejidos no solo son apreciados por calidad y valor estético, sino también por su carga cultural significativa. En las tierras bajas del país, y en particular entre el pueblo T’simane, la producción textil se convierte en un elemento central de la identidad cultural, entrelazando técnicas ancestrales con simbolismos profundos que reflejan la conexión con el entorno natural y las creencias tradicionales. Las iconografías presentes en los tejidos narran historias míticas y representan espíritus de la naturaleza, actuando como portadoras de conocimientos y tradiciones orales. Sin embargo, la pérdida de la memoria oral y el riesgo de desaparición de estos saberes destacan la necesidad urgente de políticas de preservación cultural.
El uso de cuentos interactivos para fomentar la adquisición temprana del lenguaje en niños de educación inicial
Authors: Ketty Silvana Tapia Guzman , Orellana Colla Silvia Rocío , Jaen Suarez Glenda Alexandra , Cardenas Pila Victoria Nataly , Chávez Fernández Martha Yadira , Eras Castillo Sandra Isabel
Published: December 2024

El estudio analiza la efectividad de los cuentos interactivos como recurso pedagógico para esti-mular el desarrollo del lenguaje en infantes en etapa preescolar. El artículo se titula El uso de cuentos interactivos para promover la adquisición temprana del lenguaje en niños en educación inicial. Durante los primeros años de vida, el lenguaje desempeña una función fundamental en el progreso cognitivo y social, siendo un elemento determinante en el logro académico y perso-nal de los niños. La utilización de tecnologías interactivas, como los cuentos digitales, se plantea como una estrategia novedosa que favorece la adquisición del lenguaje al combinar elementos visuales, sonoros y textuales en un único recurso, lo cual potencia la comprensión y retención de la información. El presente estudio tiene como objetivo analizar el impacto de los cuentos interactivos en el desarrollo de la comprensión lectora, el vocabulario y la expresión verbal en niños de edades comprendidas entre los 3 y 6 años. Según diversas investigaciones anteriores, los relatos interactivos posibilitan la participación activa de los niños en la narración, lo cual potencia su motivación y concentración, aspectos fundamentales para la adquisición temprana del lenguaje. La interacción con los cuentos por parte de los niños implica no solo escuchar la narración, sino también participar respondiendo preguntas, completando frases y realizando predicciones sobre el contenido. Este proceso facilita la construcción de significado en su expe-riencia de lectura. El estudio analiza además de qué manera estos relatos, al incluir atributos in-teractivos, posibilitan la personalización del aprendizaje. Los niños tienen la capacidad de pro-gresar a su propio ritmo al seleccionar actividades que se ajustan a sus niveles de comprensión y desarrollo del lenguaje. Según la investigación, los cuentos interactivos, al ser utilizados apro-piadamente, brindan diversos beneficios en el proceso de adquisición del lenguaje. Estos bene-ficios incluyen el enriquecimiento del vocabulario, el fortalecimiento de la estructura gramatical y el desarrollo de habilidades de comunicación oral. Asimismo, promueven el interés por la lec-tura desde las primeras etapas del desarrollo. En síntesis, el presente artículo resalta la eficacia de los cuentos interactivos como una herramienta pedagógica prometedora para estimular la ad-quisición temprana del lenguaje en el ámbito de la educación inicial, estableciendo así cimientos sólidos para el desarrollo académico posterior.
DOENÇA DE LYME/SÍNDROME BAGGIO-YOSHINARI: REVISÃO DE LITERATURA
Authors: Davoglio R. S. , Campos R. M. L. , Goslar A. H.
Published: December 2024

A Doença de Lyme, também chamada de borreliose de Lyme, é uma zoonose multissistêmica que se manifesta de forma complexa exigindo investigação minuciosa e tratamento individualizado, representando um desafio significativo para a saúde pública com impacto em várias partes do mundo. É causada por espiroquetas do complexo Borrelia burgdorferi sensu lato cuja transmissão ocorre através da picada de carrapatos. A diversidade genética e a infinidade de estratégias de evasão imunológica permitem que a bactéria se adapte e sobreviva em diversos ambientes, com multiplicação e migração por diferentes tecidos causando danos e desencadeando as manifestações da doença, que variam de acordo com a gravidade, duração e tempo decorrido após a infecção. No estágio 1 ou fase inicial, a principal manifestação é o surgimento do Eritema Migrans, lesão característica da doença; no estágio 2 podem surgir complicações articulares, neurológicas e cardíacas; no estágio 3, fase tardia ou crônica da doença, surgem outras manifestações de origem reumatológica, dermatológica, oftalmológica, além do agravamento das demais complicações sistêmicas. O diagnóstico deve ser orientado principalmente pelos achados clínicos, os testes laboratoriais desempenham um papel complementar na confirmação. O tratamento é realizado basicamente com antibióticos específicos na fase inicial, tornando-se bastante complexo diante das manifestações sistêmicas das fases mais avançadas. No Brasil, a doença apresenta-se com características específicas que a diferenciam da Doença de Lyme clássica que ocorre nos Estados Unidos, Europa e Ásia, e vem sendo denominada Síndrome Baggio-Yoshinari.
SÍNTESE, CARACTERIZAÇÃO E ESTUDO DA REATIVIDADE DE NITROSILO COMPLEXOS DE RUTÊNIO
Authors: Penha Dayana Patrícia da Silva , Sousa Thuanny Moura de , Da Silva Francisco Ordelei Nascimento , Pontes Daniel de Lima , Pontes Ana Cristina Facundo de Brito
Published: December 2024

Objetivo: Sintetizar, caracterizar e realizar a reatividade química dos nitrosilo complexos do tipo [Ru(bpy)(phen)L(NO)](PF6)4, onde L são os corantes azul do nilo e safranina, bpy = 2,2’-bipiridina e phen = 1,10’-fenantrolina. Métodos: Os nitrosilo complexos foram caracterizados por técnicas espectroscópicas (Espectroscopia vibracional na região do infravermelho, Espectroscopia eletrônica na região do Uv-Vis) e eletroquímica (voltametria cíclica), além da reatividade química pelo estímulo fotoquímico com luz vermelha e através da reação com redutores biológicos. Resultados: De acordo com os espectros eletrônicos, em metanol, foi possível constatar as bandas intraligantes dos corantes, da bipiridina e da fenantrolina, bem como a banda de transferência de carga do metal para os ligantes polipiridínicos na região de 420 nm. Já nos espectros vibracionais, em pastilhas de KBr, verifica-se o estiramento de NO+ em 1926 e 1938 cm-1 para os complexos com azul do nilo e safranina, respectivamente, indicando que o óxido nitrico se encontra coordenado ao centro metálico na forma linear. Ao analisar os voltamogramas cíclicos dos nitrosilo complexos, em NaTFA 0,1 mol L-1, verifica-se um único processo quase reversível referente ao par redox NO+/0. A liberação do óxido nítrico da esfera de coordenação foi observada pelo estímulo fotoquímico com luz vermelha e através da reação com redutores biológicos Conclusão: Os resultados indicam a formação dos compostos como também a redução e labilização do óxido nítrico.
PROFESSIONAL PERMANENCE IN THE CONCEPTION OF UNISCED PROFESSIONALS IN MOZAMBIQUE: A REFLECTION FROM THE PSYCHOSOCIOLOGY OF WORK
Authors: Mussa S. L. J. , Cunha C. M. O. , Dias A. A. C. , Formiga N. S.
Published: December 2024

Research on the topic of talent management and job retention has aroused the interest of several researchers and has grown the interest of research in this particular area. This research aimed to make an empirical verification of a theoretical model between the perception of organizational support, job satisfaction, job retention and professional permanence, It is a study carried out at the Open University Isced (Unisced), this university has a representation in all the provincial capitals of Mozambique. 214 workers participated in the study, where a questionnaire was applied to the workers. They answered questions related to sociodemographic data and the scale of perception of organizational support, job satisfaction scale, job retention scale and job permanence. Descriptive statistics, exploratory analysis, confirmatory analysis and verification of the theoretical model were performed. From the results of this study it is emphasized that the scales are reliable and their psychometric indicators corresponded to what was expected, in the statistical criteria required by the literature. With the study it was proven, that the professionals evaluated in their job satisfaction, in relation to the institution itself and the implementation of bond and organizational support, this, evaluated in the perception of organizational support, are factors that make talents feel satisfied, once satisfied they tend to remain at work, in this case it can be assumed that the retention strategy was effective.