bluuebunny/crossref_metadata_2025 huggingface dataset:
DEVELOPMENT OF REFRACTORY CONCRETE USING GLASS GRINDING WASTE SAND
Authors: Do Trung Kien Kieu , Nhat Tran Quang , Son Le Minh , Minh Do Quang
Published: December 2024

This study investigates the utilization of glass grinding waste sand as an alternative fine aggregate in the formation of refractory concrete. Experimental refractory-concrete samples were subjected to sintering at 1200 °C, followed by a comprehensive evaluation of their physical and mechanical properties. The parameters assessed included flexural strength, volume density, shrinkage/expansion behavior upon drying and firing, thermal shock resistance, and thermal conductivity, following Vietnamese standards. Additionally, the mineral composition was determined using X-ray diffraction, while the microstructural characteristics were analyzed via scanning electron microscopy. Experimental findings indicate that incorporating 5 wt.% of glass grinding waste sand enhances the degree of sintering in refractory concrete at elevated temperatures while maintaining its essential refractory properties. The XRD analysis revealed the presence of α-Al2O3 and γ-Al2O3 phases, contributing to the refractory concrete’s improved heat resistance and thermal shock resistance. The SEM analysis corroborated these findings by illustrating the microstructural modifications imparted by the glass grinding waste sand. Incorporating glass grinding waste sand at an optimal concentration of 5 w/% promotes sintering at high temperatures and preserves the critical refractory characteristics of concrete. This study underscores the potential of glass grinding waste sand as a viable alternative fine aggregate for refractory concrete, contributing to material sustainability and performance improvement.
Comprehension of Digital and Printed Texts: Experimental Evidence
Authors:   Saint Petersburg State University, Saint Petersburg, Russian Federation, Shcherbakova Olga , Isaeva Tatiana ,   Independent Researcher
Published: December 2024

This article describes the results of a study aimed at revealing a potential correlation between the level of understanding of a text and the format of its presentation (printed or digital). Namely, we expected a lower level of comprehension for digitally presented text compared to its hard copy printed analogue due to the higher cognitive ‘cost’ of reading in digital environment. We also expected that the use of extra materials (EM) providing additional information to the main text is related to the format of text’s presentation. Sixty volunteers (39 females, mean age = 20 ± 0.6 years old) participated in the study. They were administered Raven’s Standard Progressive Matrices (SPM); then, they read the stimuli (pop-science text) in either digital, or printed, or hybrid format, completed a questionnaire assessing the level of text’s understanding and, finally, answered questions of a semi-structured interview. The crosstab, F-test and Kruskal-Wallis test were used for statistical analysis. We found no significant differences between the levels of understanding of texts of different formats. However, most participants showed low levels of comprehension; also, they used EM (hyperlinks) less when working with digital text compared to its printed analogue. The latter result might be due to higher cognitive load when reading a text on the screen than reading a printed text. The low level of understanding suggests that basic cognitive skills are more important in reconstruction of text’s meaning than the format of text’s presentation.
Actualización de la colección tipo de monocotiledoneas del Herbario Nacional de Costa Rica (CR)
Authors: Lobo-Cabezas Silvia
Published: December 2024

El Herbario Nacional de Costa Rica (CR) resguarda la colección de plantas más antigua y grande del país, con una importante representación de ejemplares tipo en muchas familias. Este estudio presenta los resultados de la actualización de la información de los ejemplares tipo del grupo de las monocotiledóneas presentes en CR. En total, el material tipo de monocotiledóneas representa 663 nombres de especies y taxones infraespecíficos. Mil cuatrocientos sesenta y seis ejemplares tipo se contabilizan en total. Esto corresponde a un aumento en 308 nombres de taxones y 1 018 especímenes tipo con respecto a la última revisión de la colección tipo, realizada en 2003. El material tipo extranjero corresponde al 4.6% de los ejemplares tipo de monocotiledóneas.
Naturalist’s Austin: A Guide to the Plants and Animals of Central Texas
Authors: Keller Harold W.
Published: December 2024

The reader can be expected to find the following groups of plants: Trees (pages 42–53, Shrubs (54–65), Wildflowers (66–109), Vines (110–119, Ferns and Allies (120–127), Yucca, Cacti and Allies (124–127), Grasses and Sedges (128–133), and Fungi Lichens, and others (134–141) this section is color coded green in margins; animals starting with Mammals (142–147, Birds (148–175), Amphibians, Frogs and Toads (176–191), Fishes (192–193), Mollusks (194–194), Dragonflies and Damselflies (196–207), Grasshoppers, Katydids, and Crickets (208–221), Lacewings, Antlions, and Others (222–223), Beetles (224–231), True Flies (232–235), Butterflies and Moths (236–271), Sawflies, Bees, Wasps, and Ants (272–279), Spiders and Other Arthropods (280–284).
J.R.R. TOLKIEN "THE FALL OF GONDOLIN": FORAYS INTO THE TEACHING OF SCIENCE AND MATHEMATICS
Authors: Pereira Gerlany de Fátima dos Santos
Published: December 2024

How can the narrative and thematic elements in "The Fall of Gondolin" by J.R.R. Tolkien be utilized as innovative pedagogical tools for teaching Natural Sciences and Mathematics? This was the guiding question for this text. The general objective was to analyze how the narrative and thematic elements in "The Fall of Gondolin" by J.R.R. Tolkien can be utilized as innovative pedagogical tools for teaching Natural Sciences and Mathematics. The specific objectives were to identify scientific and mathematical concepts present in "The Fall of Gondolin," investigate the descriptions of natural phenomena and architectural structures in the work, relating them to concepts of geology, biology, physics, and mathematics, develop pedagogical activities based on the narrative elements of the work as propositions for the teaching practices of Basic Education teachers, and create a guide of best practices for the use of "The Fall of Gondolin" in the teaching of Natural Sciences and Mathematics. Regarding the methodological aspects of the research, it is a study that uses a qualitative methodology. The main stages and methods of the study include: Content Analysis, with the objective of identifying and categorizing narrative and thematic elements of "The Fall of Gondolin" that can be correlated with concepts of geology, biology, physics, and mathematics, the development of Pedagogical Activities, with the objective of creating pedagogical activities based on the narrative elements identified in the content analysis, and the development of the Best Practices Guide for teaching Natural Sciences and Mathematics. The results of this study indicate that integrating narrative and thematic elements of "The Fall of Gondolin" into the teaching of Natural Sciences and Mathematics can promote an interdisciplinary approach that stimulates curiosity, engagement, and the development of critical and scientific skills among students. By connecting fantasy with scientific reality, Tolkien's work provides an engaging and meaningful context for learning, making scientific concepts more accessible and interesting.
FOR INTERACTION OF MTIULIAN AND MESKHETIAN DIALECTS
Authors: Kobaizde Lamzira
Published: December 2024

Mtiulian dialect is one of the distinguished ones out of highland dialects of the Eastern Georgia. It is linked to the mountain speech by the features characterized for ancient Georgian while it is close to Kartlian and Kakhetian by new features. It is known from the scientific literature, that Mtiulians were resettled in different places with support of the Soviet Government. Currently, they live in Dusheti, Tianeti, Kaspi, Tetritskaro (Manglisi), Leningori, Tsiteltskaro (Kvemo Kedi), Aspindza and Samgori districts. Close relationship with different dialects has changed their speech. In December 1944 the population were resettled from Mtiuleti to the villages of Aspindza district, such as Idumala, Oshora, Sakudabeli, Orgora, Ghobieti, Akhalsheni, Khertvisi, Rustavi, Ota... Some of the villages listed above are abandoned nowadays. It is natural, that local Meskhetian population met to those who were resettled there. As a result of living together of Mtiulian and Meskhetian population of many years both dialects have experienced some changes. The peculiarities of the case category are more interesting for us which demonstrates interesting and diversified picture of both dialects. The article refers to the case category and the changes related to it in both dialects. The discussion is based on the dialect material taken from the field demonstrating the character of both dialects clearly.
The idea of this paper is to present concisely and clearly the specific linguistic aspects of the two dialects in phonetics, morphology and syntax. We are going to provide a detailed analysis in the monograph.
Thymidine analog labeling of proliferating cells v1
Authors: Seifert Ashley
Published: December 2024

This protocol describes the procedure used by the Seifert Lab to label cycling cells with thymidine analogs to track cell proliferation in injured tissue. EdU is used to label cycling cells before the injury, and BrdU after, thereby assessing cell proliferation in response to injury. It has been successfully used in rodents (Mus musculus and Acomys dimidiatus - spiny mouse), zebrafish (Danio rerio) and axlotl (Ambystoma mexicanum). Note that any protocol involving animals should be reviewed and approved by your Institutional Animal Care and Use Committee (IACUC) before use.
In vitro human tyrosinase inhibitory assay (human melanoma cell lysate based) v1
Authors: Shi Gengxuan
Published: December 2024

Tyrosinase (TYR) inhibitors are required to treat skin hyperpigmentation. Currently live cell-based TYR assays and mushroom TYR in vitro assays are the common methods used to screen for TYR inhibitors. However, these methods are either time consuming and expensive or are not human TYR (hsTYR) specific. Here, we describe a simple hsTYR assay using cell lysate prepared from pigmented human melanoma cell lines that takes less than 3 hours to complete after collecting cell pellets. We confirmed the assay is species specific by using a known hsTYR inhibitor, kojic acid, as a positive control, while arbutin, which inhibits mushroom TYR, but not hsTYR, was not effective. This assay is a simple method to confirm hsTYR inhibition before conducting follow-up studies in live biological models.
Sanger Tree of Life HMW DNA Extraction: Hypertonic Washing of Plant Tissue Homogenates v1
Authors: Jackson Benjamin , Howard Caroline
Published: December 2024

The problematic characteristics of exceptionally recalcitrant plants in extraction are often attributed to the overwhelming abundance of sugars, oils or other endogenous secondary metabolites that may accumulate in a specimen's cells. Whilst alternative specimens and/or tissue types can sometimes rectify these issues by avoiding the use of samples with excessive accumulations of such substances, many species have an innate, systemic predisposition to contaminant concentrations high enough to overload standard methods of nucleic acid extraction. The most prevalent and interfering irreversible interactions associated with recalcitrant plant extractions are DNA oxidation and lysate viscosity, both of which are correlated with lower DNA quantities and quality that perform substantially worse during ToL’s downstream applications. Oxidative DNA damage is induced by the overabundance of oxidising agents such as polyphenols, and is observable through the characteristic browning of sample lysates. However, oxidative gDNA damage is otherwise generally undetectable prior long-read sequencing, where a sizable reduction in performance is observed. The overabundance of viscosity-inducing agents, such as polysaccharides, is easily observable following cell decompartmentalization due to the formation of heavily aggregated, glue-like lysates that co-precipitate with DNA and heavily impede ToL’s standard protocols. To overcome these issues, this protocol utilises a hypertonic sorbitol wash buffer to remove interfering contaminants present within the cytosol prior to cell decompartmentalization, meaning the aforementioned interfering, irreversible interactions are unable to occur due to a lack of contact with gDNA. Sorbitol is an osmotically active sugar alcohol capable of ‘drawing out’ the cytosol of homogenised (cryogenically disrupted) plant tissues without interrupting cellular or nuclear membranes. If successful, a previously recalcitrant sample’s lysate should be absent of either viscosity or browning. However, it should be noted that the presence of interfering contaminants outside of the cytosol (e.g. extracellular proteoglycans) will not be affected by this protocol. In these instances, an alternative method of pre-lysis purification (e.g. nuclei isolation) is recommended if standard procedures are inadequate. This protocol is performed before the Plant Organic HMW gDNA Extraction (POE) protocol, which acts as the Tree of Life programme’s mid-throughput, reserve gDNA extraction procedure for all recalcitrant species within the Plantae kingdom.
INVENTORY OF USUAL AND USUAL-LEGITIMIZED MODELS OF PRODUCTION OF NON-VERBALIZERS OF HYBRID RUSSIAN-UKRAINIAN WAR OF 2014–2024
Authors:   V.N. Karazin Kharkiv National University, Kharkiv, Ukraine, DIUKAR Kateryna
Published: December 2024

The article examines the most common models and types of neo-verbalizer production of the hybrid 2014–2024 Russian-Ukrainian war based on the Ukrainian-language segment of social network and media content. It is emphasized that in the study innovation is interpreted as a hyperonym, to which the hyponyms “neo-derivative” and “neo-verbalizer” are subordinated. The focus of attention is on the units formed on the basis of usual and usual-legitimized patterns. The analysis of the study material shows a high level of neogenicity. The range of extracted innovations indicates that innovations are often produced with varying degrees of deviation from the norm or usage, as well as with non-usual wordformation tools. The author notes a gradation from structural and semantic conformity of innovations to various degrees of deformation within word-formation models. There has been a recent tendency to legitimize new usage models that emerge on the basis of deformed common language patterns. Not only is there an atypical compatibility of the formative bases and formants, but also the expansion of the latter’s meanings through the layering of additional shades of meaning. The cases of extreme deviations of models involving formants from other code systems, mainly English, are described. It is established that innovations actively enter into word-formation relations, in which the level of word-formation tact is not significant and requires a comprehensive consideration of the entire chain. Some neo-verbalizers reach the top of word-formation nests. It is pointed out that the most productive and regular are the models producing suffix and prefix innovations of various part-of-speech nature, although combined word-formation types are also involved. The activation of an affixed word formation over the past ten years has been observed. The production of new units by means of pure or suffixation-related stem formation is demonstrated. It has been observed that word formation in the general range of innovations is represented by a smaller number of derivatives. Neogenicity within the militaristic discourse is not limited to these types, which is illustrated by means of inflectional innovations.
Genre Originality of «The Tale of the Venerable Abbess Athanasia»
Authors: Shadrina E.S.
Published: December 2024

The article is devoted to the consideration of the genre originality of the "Tale of the Venerable Abbess Athanasia", which was included in the Synodic Literary Collections. This text is a fragment of a prostrate hagiography. When including "The Story of..." in the synodic prefaces, the compilers were initially interested in the saint's teaching on the necessity of remembering the dead. Later, the circumstances of the saint's posthumous miracle began to play an equally important role in the illustrated synodical literary collections, especially in the Great Synod of Solba from the 18th century, which vividly and figuratively proved the idea of the monument. The synodal article belongs to the symbolic genre of the vision (phenomenon). Its combination with the miracle of the flourishing staff, which plays the role of "physical" proof, corresponds to the general process of genre synthesis characteristic of late medieval literature.
An Empirical Analysis for Improving Safety Management at Incheon International Passenger Terminal
Authors:   The Korean Logistics Research Association, Cho Young-Jun , Lee Hyang-Sook
Published: December 2024

The port logistics industry’s port handling business is characterized by the loading and unloading of heavy and large-sized cargoes using heavy equipment, making it prone to major accidents. In line with the recent enactment, amendment, and strengthening of the Industrial Safety and Health Act, the Port Safety Special Act, and the Act on the Aggravated Punishment, etc. of Specific Crimes, this study conducted an empirical analysis to improve safety management in the handling of car ferries at Incheon Port International Passenger Terminal. The study identified the types of safety accidents that occur during car ferry handling at Incheon Port International Passenger Terminal, which has been integrated since June 2020, and confirmed potential factors that threaten port safety, as well as the causes and backgrounds that affect them. The study analyzed the importance and achievement of factors by factor in progressing car ferry handling. Based on this, the study discussed what should be improved in the future and presented implications for the development of industrial safety management in the domestic port logistics industry.
The assessment items were composed of 6 large items and 26 small items through the analysis of car ferry handling accident cases, preceding studies, and expert interviews. The study conducted an IPA survey targeting car ferry handling company executives and handling experts.
As a result of the analysis, 11 factors (42.3%) were distributed in the 1st quadrant, 1 factor (3.8%) in the 2nd quadrant, 12 factors (46.1%) in the 3rd quadrant, and 2 factors (7.7%) in the 4th quadrant out of the total 26 factors, mainly concentrated in the 1st quadrant and the 3rd quadrant. The terminal users judged that factors for preventing cargo and passenger safety accidents in car ferry handling operations were the most important, and it was judged that the safety and security of accident prevention were highly evaluated as a terminal newly opened in June 2020.
Existing preceding studies rarely conducted safety management-related studies based on safety accident cases occurring during car ferry handling, and the analysis results of this study have differences from other studies, and it is considered that it will contribute to the development of the port industry and the development of car ferry handling in the future.
Bibliometric Analysis of Intelligent Logistics Research : Focusing on Korean, Chinese, and English Journals
Authors:   The Korean Logistics Research Association, Bai Hao-Yue , Kim Jung-Hee , Kim Seong-Han
Published: December 2024

This paper aimed to conduct a bibliometric analysis focusing on the issues and trends in intelligent logistics research across core Korean, Chinese, and English journals in the 21st century. The study utilizes bibliometric techniques to analyze a comprehensive dataset extracted from three authoritative databases: KCI, CNKI, and Web of Science. Keywords related to intelligent logistics were used to search for relevant articles published between January 1, 2000, and January 01, 2024. Bibliometric analysis was performed to identify trends, key research themes, and the evolution of research topics over time. The findings reveal significant growth in research output, particularly in English-language publications, indicating increasing global interest in intelligent logistics. Key research themes identified include the integration of cutting-edge technologies such as the Fourth Industrial Revolution, smart manufacturing, and the Internet of Things into logistics practices. The analysis also highlights distinct research emphases across different linguistic domains, with Korean, Chinese, and English papers demonstrating unique priorities and trends. This study contributes to the understanding of intelligent logistics research trends and dynamics, providing valuable insights for scholars, practitioners, and industry stakeholders. By identifying key research themes and emerging areas of interest, this research informs strategic decision-making and drives innovation in the field of logistics and supply chain management.
A Study on the Direction of Research and Development Verification of Convergence Logistics Project in South Korea
Authors:   The Korean Logistics Research Association, Choi Jaesung , Jeon Seeun , Lee Beomseok
Published: December 2024

The proportion of logistics costs in the national GDP has maintained an annual average of around 8-10% over the past 10 years and is considered one of the high priority targets for policy management/growth in importance and future in Korea’s import and export economic structure. From the era of logistics 1.0 to the era of logistics 4.0 centered on convergence new technologies of the 4th industrial revolution, a paradigm shift that is completely different from the past industrial revolution such as mechanization in all values such as productivity, convenience, and safety is being integrated and developed in the logistics field. Therefore, the Ministry of Land, Infrastructure and Transport is carrying out a total of 10 research projects for each consortium to discover R&D tasks of the convergence logistics business by supporting about 105.4 billion won in government contributions from March 2021 to December 2027. In this study, priority review items (works) that require mid- to long-term response within the logistics industry, including this research and development, were derived by introducing qualitative (FGI) and quantitative (IPA analysis) methods through a real-term review of the technology development outcomes of 10 individual research projects currently being carried out. As a result of the study, the development of standard waybills in the first quadrant, the establishment of an integrated logistics platform, the improvement of cold chain, the reduction of courier work, the cooperation of APIs by private companies in the second quadrant, the use of underground logistics using railroads, blockchain technology in the third quadrant, unmanned delivery of autonomous robots at the end, and the use of RTP or eco-friendly transportation equipment in the fourth quadrant were derived and analyzed. Although it differs depending on the degree of progress of each of the 10 major tasks, in the case of actual verification, efforts are planned to be carried out until the pre-commercialization stage after about four years of empirical and feedback processes. Based on the importance and readiness of each quadrant reviewed in the study, it is expected that the maturity and readiness of growth by sector (elements) can be measured and used as basic research and roadmap data for setting the direction of implementation of the integrated real verification in the future.
The Effect of Online Shopping Mall Characteristics on Flow, Shopping Satisfaction and Repurchase Intention : Focusing on Golf Wear
Authors:   The Korean Logistics Research Association, Kim Ki-Chul , Choi Bo-Ram , Park No-Hyun
Published: December 2024

This study was conducted targeting consumers who had experience purchasing golf wear through online shopping. We sought to understand how the characteristics of golf wear online shopping malls affect flow, shopping satisfaction, and repurchase intention. The attributes used to measure online shopping mall characteristics were defined as information provision, product diversity, convenience of use, price efficiency, and interactivity. Of the collected questionnaires, 352 valid samples were collected using SPSS Ver. 25.0 and AMOS Ver. Analysis was conducted using the 25.0 statistical package.
The empirical analysis results of this study are as follows. First, the characteristics of golf wear online shopping malls will have a significant positive influence on flow. Second, shopping mall characteristics will have a significant positive effect on shopping satisfaction. Third, flow will have a significant positive (+) effect on shopping satisfaction. Fourth, flow will have a significant positive (+) effect on repurchase intention. Fifth, shopping satisfaction will have a significant positive (+) effect on repurchase intention. Therefore, it can be said that the hypothesis presented in this study has been sufficiently proven. As a result of this study, it was confirmed that in practical terms, a more active and detailed approach strategy should be established for customer communication activities, 1:1 customized customer consultation, and information exchange between users, considering the environmental characteristics of an online shopping mall.
Avaliação da Capacidade Predatória das Larvas de Odonata Sobre as Larvas de Aedes aegypti (Diptera: Culicidae) na Região Sudoeste da Bahia
Authors: De Oliveira Silva Bruno , Novais Souza Francine , Cardoso da Silva Débora , Borges Santos Flávia
Published: December 2024

A dengue, doença causada pelo arbovírus DENV e transmitida pelo mosquito Aedes aegypti, representa um desafio global, com milhões de casos registrados anualmente. No Brasil, a situação é alarmante, com um aumento significativo nos últimos anos. Diante desse cenário, o presente estudo propôs investigar a viabilidade do controle biológico utilizando larvas de cinco famílias da ordem Odonata, como potenciais predadoras das larvas de A. aegypti, em condições de laboratório. Foram conduzidos quatro experimentos com duração de 12 horas cada. Em cada recipiente, foram adicionadas duas ou três larvas de Odonata da mesma família e, posteriormente, adicionadas 150 larvas de A. aegypti nos recipientes com três e duas larvas de Odonata e 50 nos recipientes que continham uma larva de Odonata. Os resultados revelaram uma variabilidade na predação das larvas de A. aegypti pelas larvas de Odonata, com as famílias Aeshnidae, Libellulidae e Coenagrionidae apresentando as maiores taxas de predação. Esses resultados indicam que o controle biológico pode representar uma alternativa promissora aos métodos tradicionais de combate ao vetor da dengue, contribuindo para a redução da incidência de doenças transmitidas por esses. No entanto, são necessárias pesquisas adicionais para considerar aspectos ecológicos e implementar essa estratégia com sucesso.
Palavras-chave: Dengue. Arbovirose. Controle Biológico. Taxa de Predação.
Abstract
Dengue, a disease caused by the arbovirus DENV and transmitted by the mosquito Aedes aegypti, represents a global challenge, with millions of cases reported annually. In Brazil, the situation is alarming, with a significant increase in recent years. In light of this scenario, the present study aimed to investigate the feasibility of biological control using larvae from five families of the order Odonata as predators of A. aegypti larvae under laboratory conditions. Four experiments, each lasting 12 hours, were conducted. Each container was supplied with either three or two Odonata larvae of the same family, and subsequently, 150 A. aegypti larvae were added to the containers with three Odonata larvae, and 50 were added to those containing two Odonata larvae. The results revealed variability in the predation of A. aegypti larvae by Odonata larvae, with the families Aeshnidae, Libellulidae, and Coenagrionidae exhibiting the highest predation rates, in descending order. These findings suggest that biological control could represent a promising alternative to traditional methods to combat the dengue vector, contributing to the reduction of disease incidence. However, further research is necessary to consider ecological aspects and successfully implement this strategy.
Keywords: Dengue. Arbovirus. Biological control. Predation rate.
IDENTIFY STUDENT QUESTIONS ABOUT TRAINING INSTITUTIONS FROM ONLINE MEDIA POSTS
Authors: Le Luong Thai , Quang Duy Nguyen , Nguyen Thanh Vinh Lo
Published: December 2024

Automatically identifying and understanding students' questions about problems they encounter or issues related to their universities is very important for universities to promptly grasp the aspirations of their students. This enables them to support and satisfy their students and enhance their reputation. Especially as social networks and online media continue to develop, students can easily post their questions and concerns online. This makes it easier for universities to access and address student questions. Although this is not a new problem, it still faces many challenges due to issues in natural language processing. To address this problem, within the scope of this article, we conduct a survey, perform experiments, and propose a model to automatically classify students' questions into 11 areas of interest at the University of Transport and Communications. We conducted careful experiments with a dataset of more than ten thousand posts collected from websites, forums, and school fan pages. Finally, we obtained a model with prediction results that achieved an accuracy of over 85%.
STUDY ON GEOMETRICAL STRUCTURES AND ABSORPTION SPECTRA OF M\(_4\)\(^{2+}\) CLUSTERS (M = Cu, Ag, Au) ENCAPSULATED IN SAPO-42 ZEOLITE \(\beta\)-CAGE USING DENSITY FUNCTIONAL THEORY
Authors: Thi Thuy Duong Nguyen , Tuan Cuong Ngo
Published: December 2024

The most stable structures of tetrahedral M42+ cluster (M = Cu, Ag, Au) encapsulated in SAPO-42 zeolite \(\beta\)-cage have been determined by the DFT method using a/the B3LYP functional and LANL2DZ basis set. Electronic energies, zero point correction to energies and geometries, as well as the charge of the clusters, have been derived accordingly. The results showed that while the Cu-Cu bond length increases much when Cu42+ is in the framework, the Ag-Ag and Au-Au distances do not. The UV-Vis spectra of the [M4@SAPO-42]2+ clusters, which were calculated at the same hybrid B3LYP functional and the LANL2DZ basis set, show strong absorption peaks at 259 nm, 270 nm, and 259 nm for M being Cu, Ag, and Au, respectively. The nature of electronic transitions that are responsible for the absorption peaks in the UV-Vis spectrum of the [M4-SAPO-42]2+ clusters has been revealed.
From Meaningful to Meaningless Participation: The Tragedy of Indonesia’s Omnibus Law on Job Creation
Authors: Mochtar Zainal Arifin , Arizona Yance , Rahman Faiz , Mubdi Umar , Ruhpinesthi Garuda Era , Wafi Mochamad Adli
Published: December 2024

Indonesia’s Constitutional Court introduced the concept of meaningful participation in the lawmaking process, emphasizing the right to be heard, considered, and explained. This concept was institutionalized through amendments to the Law on Lawmaking Procedures (Law Number 13 of 2022). However, meaningful participation remains poorly implemented, as demonstrated by the lack of public involvement in the issuance of the Government Regulation in Lieu of Law legalizing the Omnibus Law on Job Creation and the Constitutional Court's ruling on Law Number 6 of 2023 (Job Creation Law 2.0), which deemed public participation irrelevant for emergency laws. These developments highlight inconsistencies in applying the principle of meaningful participation in Indonesia’s legislative practices. This research evaluates the institutionalization of meaningful participation in Law Number 13 of 2022 and its practical application in Indonesia’s lawmaking process. This research uses doctrinal legal research methods by examining library materials and secondary data to analyze the legal framework and its implementation. The findings reveal a significant gap between the theoretical framework of meaningful participation and its application in practice, particularly in emergency lawmaking. In conclusion, while the institutionalization of meaningful participation reflects a positive step, inconsistent application undermines its potential to enhance democratic governance in Indonesia.
Exploring Key Predictors of Academic Helplessness in Adolescents via Lasso
Authors:   The Korea Association of Yeolin Education, Han Junga
Published: December 2024

This study aimed to explore the predictors of academic helplessness in middle and high school students using data from the 5th year of the Korean Children and Youth Panel Survey (KCYPS) 2018. This study applied the Lasso penalized regression among machine learning techniques. The main results are as follows. 24 variables from the middle school data and 19 variables from the high school data were selected as predictors of academic helplessness. Among the selected variables, self-study time, subjective evaluation of overall academic achievement, academic engagement, career adaptability, creative personality, happiness, self-esteem, grit, emotional problems, annual frequency of participation in youth activities, smartphone dependency, school life satisfaction, teacher relationships, and parenting attitudes have been addressed in previous studies, and the direction of the regression coefficients was consistent with previous studies. Sleep time, computer leisure time, future career decision status, desired future educational level, frequency of smartphone use by purpose (academic or work-related), and career preparation activities (career psychological and aptitude tests, career-related special lectures) were newly identified variables in this study. Based on these results, implications and suggestions for follow-up studies were presented.
A Study on Conflict Management Types of Pre-teachers
Authors:   The Korea Association of Yeolin Education, Lee Kwangsung
Published: December 2024

The purpose of this study was to analyze the conflict management style of college students and develop an educational program necessary for adaptation to school life and use it as basic data. The results of this study were, first, that 'yielding' was the most preferred type of conflict management, while 'competition' was the least preferred strategy. Second, 'cooperation' was highly correlated with 'compromise' overall, and low correlated with 'competition' and 'avoiding'. Third, it can be seen that the higher the interest in oneself, the more the 'avoiding' strategy is preferred, and the higher the interest in the other party, the more the 'yielding' strategy is preferred. It can be seen that 'cooperation' and 'compromise' were preferred when there was low interest in oneself but interest in the other person, and 'competition' was the preferred strategy in situations where both interest in oneself and interest in the other person were low. In addition, it was found that the distance between 'avoiding' and 'cooperation', between 'compromise' and 'yielding' and 'competition' was the farthest in the two-dimensional space.
Militancia lésbica en el movimiento LGBT en Rosario (Argentina, 1987-1999). Una aproximación desde la historia oral y el giro afectivo
Authors: Kresic Agustina , Restovich Desiree
Published: December 2024

En este trabajo nos proponemos reflexionar sobre la participación lésbica en el movimiento LGBT de Rosario (Argentina) en la historia reciente. Pretendemos contribuir a la perspectiva de que la historia no tiene un centro y que es posible contrastar las visiones más oficiales a partir de la indagación desde nuevas u otras voces, gracias a la historia oral. En diálogo con el giro afectivo, el objetivo de este artículo es explicar la invisibilización y la subordinación de las lesbianas al interior del movimiento LGBT. Las respuestas a la pregunta por la supeditación de la identidad lésbica pueden fundarse en el peso de las estructuras de dominación heterocispatriarcales y en el orden de prioridades de las reivindicaciones de las diferentes identidades al interior del colectivo, en tanto las demandas específicamente lésbicas quedaron desdibujadas ante diferentes urgencias coyunturales, tales como la crisis del VIH -que afectó mayormente a los varones gays- y la violencia institucional hacia las identidades travestis-trans. Nuestra aspiración de fondo es contribuir al desarrollo de una historia lésbica de anclaje local-regional, que reconozca la agencia militante de las disidencias sexuales y problematice la centralidad que históricamente se le otorgó a Buenos Aires
Detailed Analysis of Classic Z-source Topology for Protection in DC Power Systems
Authors: Perea-Mena Bayron , Muñoz-Galeano Nicolás , López-Lezama Jesús María
Published: December 2024

This paper presents an in-depth analysis of the classic Z-source topology for DC power system protection, an area previously unexplored in such detail. Using OpenModelica simulations, the study offers valuable insights into the Z-source topology’s behavior, protection mechanisms, and energy dissipation processes. It includes detailed diagrams, switching states, and explanations of operating principles, supported by waveforms illustrating energy flow through the Z-source components. The findings demonstrate that the Z-source breaker effectively handles fault conditions by disconnecting the source from the load almost instantaneously, within tens of microseconds. The simulations confirm the theoretical models, showing that the Z-source topology efficiently dissipates fault energy through inductors, capacitors, and resistors, thereby protecting sensitive equipment. This thorough analysis enhances understanding of the Z-source topology in DC power systems and establishes a solid foundation for future research and practical applications.
Technical and Environmental Evaluation of CO2-based Booster Refrigeration Systems
Authors: Vergara-Teran Daniel , Aranda-Gil Gustavo , Amaris Carlos
Published: December 2024

The present study deals with the performance evaluation of four CO2 booster refrigeration system configurations: a conventional, a parallel compressor, an ejector-based, and an NH3/CO2 cascade configuration, under the ambient conditions of the city of Bucaramanga, Colombia. Applying detailed energy and exergy analyses, as well as an evaluation of environmental impact through Total Equivalent Warming Impact (TEWI), it was identified that the ejector-based configuration as the most energy-efficient, exhibiting a 13.2% reduction in annual power consumption compared to the conventional system. The cascade configuration demonstrated the lowest exergy destruction above 26°C, highlighting its potential under higher ambient temperatures. Furthermore, the ejector-based configuration consistently achieved the highest 2nd law efficiency across the temperature range set. The environmental impact analysis showed the ejector-based configuration also had the lowest TEWI, with a 14.36% reduction. The results underscore the importance of selecting appropriate refrigeration configurations based on local climate conditions.
Objetivos y estrategias operacionales de marketing para promover el ecoturismo en Valledupar
Authors: Méndez Sánchez Andrea Marcela , Guerra Vargas Jailín Daniela
Published: December 2024

Esta investigación se enfocó en formular objetivos y estrategias operacionales de marketing para promover el ecoturismo en Valledupar, Cesar. Se fundamentó en los principios teóricos de David (2013), Serna (2008), Kotler y Armstrong (2013) y D’Alessio (2013). Se utilizó un enfoque cuantitativo, de tipo documental y descriptivo, con un diseño bibliográfico. La técnica empleada fue la revisión documental y se utilizó la matriz de registro como instrumento. Los resultados revelan que las empresas ecoturísticas deben implementar estrategias para mejorar su rentabilidad, competitividad y fidelización de visitantes. Esto implica desarrollar servicios, penetrar en mercados y posicionarse adecuadamente. Al capitalizar oportunidades y satisfacer las necesidades del mercado, fortalecerán su posición en el sector del ecoturismo.
Os princípios constitucionais das relações internacionais e o embargo à Cuba
Authors: Massaú Guilherme Camargo
Published: December 2024

O texto tem como objetivo analisar juridicamente o grau de vinculatividade do Chefe de Estado aos princípios constitucionais das relações internacionais da Constituição Federal de 1988. Para isso, toma-se como base a decisão proferida pelo Min. Luís Roberto Barroso na Arguição de Descumprimento de Preceito Fundamental 805 proposta pelo Partido dos Trabalhadores em face do voto contrário à Resolução A/RES/74/7 do governo brasileiro na Assembleia Geral da Organização das Nações Unidas (ONU), que tratava do embargo econômico, comercial e financeiro ao Estado cubano. O método analítico foi empregado para examinar os princípios e a decisão do STF e o método hipotético-dedutivo foi empregado para traçar a incidência desses princípios. Utilizaram-se recursos bibliográficos para a realização da pesquisa. As conclusões que o texto traz é a violação do princípio da prevalência dos direitos humanos pelo Chefe de Estado ao não o ter concretizado por meio de sua tomada de posição ao representar o Brasil na ONU. Isto pelo fato de os princípios estabelecidos no Art. 4° da CRFB serem políticas de Estado e não governo. Também, concluiu-se pela decisão inadequada do STF ao ignorar os efeitos normativos emanados pelos princípios constitucionais das relações internacionais.
O acesso à saúde da pessoa com deficência por meio da mediação e da conciliação
Authors: Montes Netto Carlos Eduardo , Lima Vitor Comassio De Paula , Ferreira Olavo Augusto Vianna Alves
Published: December 2024

O presente artigo visa analisar a mediação e a conciliação como instrumentos adequados ou não de efetivação do direito à saúde da pessoa com deficiência. Atualmente é incentivada a utilização dos meios adequados de soluções de conflitos, especialmente dos autocompositivos, em algumas searas específicas. Entende-se que o uso destes meios, em algumas situações específicas, pode ser benéfico e servir como forma de ampliação do acesso efetivo à justiça. Optou-se pela realização de pesquisa bibliográfica, de cunho exploratório, desenvolvida por método dedutivo com a análise de textos legislativos, de trabalhos acadêmicos e de obras sobre o tema, sendo que ao final foi possível concluir pela adequação da utilização da mediação e da conciliação em conflitos que versem sobre o direito à saúde pelas pessoas com deficiência, como forma de ampliação do acesso efetivo à justiça visando a concreção desse direito fundamental do grupo vulnerabilizado em estudo.
MULHERES JOVENS NA POLÍTICA DO ESTADO DO RIO DE JANEIRO: Uma análise a partir das eleições municipais de 2020
Authors: Carvalho Liandra Lima , Puggian Cleonice
Published: December 2024

A Constituição Federal de 1988 garante a igualdade entre homens e mulheres perante a lei e confere aos adolescentes de 16 a 18 anos o direito ao voto, embora de forma facultativa. Esta pesquisa busca preencher essa lacuna, examinando a presença da juventude feminina na política, tanto como eleitoras quanto como eleitas para os cargos de vereadoras, vice-prefeitas e prefeitas nas eleições municipais de 2020, no estado do Rio de Janeiro. A justificativa para este estudo reside na necessidade de dar visibilidade à participação política das mulheres jovens e de compreender as barreiras que elas enfrentam para ocupar cargos eletivos. Para alcançar esse objetivo, a pesquisa se baseia em uma análise documental organizada a partir de dados fornecidos pelo Tribunal Superior Eleitoral (TSE) e entrevistas com candidatas eleitas, permitindo uma avaliação detalhada da presença e da atuação das mulheres jovens na política local.
VALORAÇÃO DE RECURSO AMBIENTAL: possibilidades e limitações a partir de um lago localizado no CECLIMAR/CLN/UFRGS
Authors: Sozio Ivonei , Reinehr Dal Forno Marlise Amalia
Published: December 2024

O objeto deste estudo de valoração de recurso ambiental está localizado no Centro de Estudos Costeiros, Limnológicos e Marinhos (CECLIMAR/CLN/UFRGS). Trata-se de um lago, que está sob gestão do Centro de Reabilitação de Animais Marinhos (CERAM) para apoio no atendimento e reabilitação dos animais que ali estão em tratamento. O objetivo deste estudo foi realizar a valoração deste recurso natural, usando o método conhecido como custo de mercado de bens substitutos, relacionado à função de produção, que, para atribuir valor à um recurso natural, considera seu custo de reposição a partir de valores do mercado para bens e serviços com possibilidade de substituir o recurso em questão de forma semelhante. Após a aplicação do método de valoração, pode-se atribuir um valor econômico para este recurso natural, e na sequência, fez-se uma discussão quanto às limitações e possibilidades deste modelo metodológico para o apoio à gestão e tomada de decisão neste contexto.
ENSINO DE HISTÓRIA E ANIMAÇÕES DIGITAIS: relato de experiência e proposta de abordagem metodológica
Authors: Birro Renan
Published: December 2024

O presente artigo propõe um debate teórico e metodológico sobre o uso de animações para o Ensino de História. A partir de um levantamento prévio, foi possível constatar que o campo é relativamente novo na área, uma vez que há indícios de fragilidades estruturais e formativas; além disso, há poucas iniciativas massificadas de formação continuada, tal como de estrutura para seu exercício na esfera escolar de modo abrangente. Seja como for, considerando conceitos como agência, representação e memória, o uso de animações em sala de aula parece uma boa estratégia enquanto experiência de aprendizagem significativa por parte dos(as) educandos(as). Por fim, o artigo avança para um relato de experiência de formação com professores de escolas públicas e privadas no âmbito do XXXXX, o que possibilitou dividir um conjunto de estratégias no sentido de tentar integrar os estudantes da Educação Básica no processo de produção de animações conforme suas realidades escolares e suas pesquisas em curso.
In vitro biological and chemical control of fungi associated with gummosis in citrus fruits in Yucatan, Mexico
Authors: Hernández-Castillo Celida Aurora , Rivas-Valencia Patricia , Robles-Yerena Leticia , Sánchez-Alonso Mariana Guadalupe , Loeza-Kuk Emiliano
Published: December 2024

Background/Objective. In all citrus-producing regions in the world, gummosis is a disease that has caused losses in citrus production. This disease is caused by several pathogens. The objectives were to identify the fungi associated with gummosis in citrus orchards of Plan Chac, Sacalum, Yucatan; and to evaluate chemical and biological alternatives for the control of fungi associated with gummosis. Materials and Methods. From fragments of plant tissue and soil, the associated fungi were isolated. The isolates were identified morphologically in plant tissue as Lasiodiplodia pseudotheobromae and in soil as Fusarium solani and Pestalotia spp. The pathogenicity test determined that L. pseudotheobromae is an agent associated with this disease. The isolates were subjected to in vitro tests with chemical fungicides and antagonist agents. Results. Thiabendazole showed effectiveness for F. solani with an effective concentration to inhibit 50 % of the population (EC50) of 0.0612 mg L-1, with Pestalotia spp. inhibited growth at all concentrations evaluated and for L. pseudotheobromae, it showed an EC50 of 0.0049 mg L-1. In the case of Bacillus
subtilis strain QST 713, the growth of F. solani (EC50 0.0496 mg L-1), Pestalotia spp. (EC50 0.0487 mg L-1) and L. pseudotheobromae (EC50 0.0528 mg L-1) decreased. On the other hand, Trichoderma harzianum showed a greater inhibition against F. solani, Pestalotia spp. and L. pseudotheobromae of 61.08, 62.93 and 35.64 %, respectively. Conclusion. In the management of gummosis in citrus fruits, the use of biological agents such as Trichoderma and B. subtilis can be efficiently included, offering alternatives with less impact on the environment.